JP6996484B2 - Valve device - Google Patents

Description

The present invention relates to a valve device.

Conventionally, a valve device having a rotating valve body is known.

German Patent Application Publication No. 102017004458

For example, in the valve device described in Patent Document 1, the end of the shaft provided on the rotating shaft of the valve body is a bearing portion extending in a tubular shape from the inner wall of the housing body forming the internal space to the side opposite to the valve body. Is bearing by.

Therefore, the air in the internal space may collect inside the bearing portion. As a result, the end of the shaft and the bearing may slide in a dry state. Therefore, the end of the shaft or the bearing may be worn.

An object of the present invention is to provide a valve device capable of suppressing wear at the end of a shaft.

<9-1> Shaft bearing section flow path The present invention is a valve device (10) capable of controlling cooling water of a heating element (2) of a vehicle (1), and includes a housing (20) and a valve (30). It is provided with a shaft bearing portion (90).
The shaft bearing portion is a bearing portion main body that extends in a tubular shape from the facing inner wall (213), which is an inner wall facing the end of the shaft among the inner walls of the housing body forming the internal space, and is capable of bearing the end of the shaft inside. It has a 91) and a bearing portion flow path (92) formed so as to connect the inner peripheral wall and the outer peripheral wall of the bearing portion main body.

Therefore, even if air collects inside the bearing portion main body, the air can be discharged to the outside of the bearing portion main body via the bearing portion flow path. As a result, it is possible to prevent the end portion of the shaft and the shaft bearing portion from sliding in a dry state. Therefore, it is possible to prevent the end portion of the shaft or the shaft bearing portion from being worn.

The schematic diagram which shows the cooling system which applied the valve device of 1st Embodiment. The schematic diagram which shows the arrangement in the vehicle of the valve device of 1st Embodiment. The cross-sectional view which shows the valve apparatus of 1st Embodiment. FIG. 5 is a cross-sectional view showing the vicinity of the seal unit of the valve device of the first embodiment. The cross-sectional perspective view which shows the valve device of 1st Embodiment. FIG. 3 is a sectional view taken along line VI-VI of FIG. The figure which shows the relationship between the rotation position of the valve body of the valve body of 1st Embodiment, and the open / closed state of a valve body opening. FIG. 3 is a view seen from the direction of arrow VIII. FIG. 3 is a view seen from the direction of arrow IX. The perspective view which shows a part of the valve apparatus of 1st Embodiment. The cross-sectional view which shows the vicinity of the drive part of the valve apparatus of 1st Embodiment. The cross-sectional view which shows the vicinity of the drive part of the valve apparatus of 1st Embodiment. The cross-sectional view which shows the vicinity of the drive part of the valve apparatus of 1st Embodiment. The cross-sectional view which shows the vicinity of the drive part of the valve apparatus of 1st Embodiment. The plan view which shows the drive part of the valve apparatus of 1st Embodiment. The cross-sectional view which shows the vicinity of the drive part of the valve apparatus of 1st Embodiment. An exploded perspective view showing a drive unit cover and a part of the drive unit of the valve device of the first embodiment. An exploded perspective view showing a drive unit cover and a part of the drive unit of the valve device of the first embodiment. The figure which shows the drive part of the valve device of 2nd Embodiment. The figure which shows the valve of the valve apparatus of 3rd Embodiment. The figure which shows a part of the valve of the valve device of 3rd Embodiment. The perspective view which shows the valve of the valve apparatus of 3rd Embodiment. The perspective view which shows the valve of the valve apparatus of 3rd Embodiment. The figure which shows a part of the valve of the valve device of 3rd Embodiment. FIG. 3 is a cross-sectional view showing a part of a valve and a seal unit of the valve device of the third embodiment. The perspective view which shows the valve and the seal unit of the valve apparatus of 3rd Embodiment. The perspective view which shows a part of the valve of the valve apparatus of 3rd Embodiment. FIG. 3 is a cross-sectional view showing a part of a valve of the valve device of the third embodiment. The figure for demonstrating the manufacturing process of the valve of the valve apparatus of 3rd Embodiment. The figure for demonstrating the manufacturing process of the valve of the valve apparatus of 3rd Embodiment. The figure for demonstrating the manufacturing process of the valve of the valve apparatus of 3rd Embodiment. The figure for demonstrating the manufacturing process of the valve of the valve apparatus of 3rd Embodiment. FIG. 3 is a cross-sectional view showing a part of a valve and a seal unit of the valve device of the fourth embodiment. FIG. 5 is a cross-sectional view showing a part of a valve of the valve device of the fifth embodiment. FIG. 3 is a perspective view showing a mold device used in the valve manufacturing process of the valve device of the fifth embodiment. FIG. 3 is a perspective view showing a part of a mold device used in the valve manufacturing process of the valve device of the fifth embodiment. FIG. 3 is a perspective view showing a part of a mold device used in the valve manufacturing process of the valve device of the fifth embodiment. FIG. 3 is a perspective view showing a part of a mold device used in the valve manufacturing process of the valve device of the fifth embodiment. The figure for demonstrating the manufacturing process of the valve of the valve apparatus of 5th Embodiment. The figure for demonstrating the manufacturing process of the valve of the valve apparatus of 5th Embodiment. The figure for demonstrating the manufacturing process of the valve of the valve apparatus of 5th Embodiment. The cross-sectional view which shows the valve apparatus of 6th Embodiment. The figure which shows the valve device of 6th Embodiment. The schematic diagram which shows the arrangement in the vehicle of the valve device of 6th Embodiment. The figure which shows the valve device of 6th Embodiment. The perspective view which shows the valve apparatus of 6th Embodiment. FIG. 42 is a view seen from the direction of arrow XLVII. The perspective view which shows the valve apparatus of 6th Embodiment. The figure which shows a part of the valve device of 6th Embodiment. FIG. 6 is a cross-sectional view showing a pipe member, a seal unit, and a gasket of the valve device of the sixth embodiment. An exploded view showing a part of the valve device of the sixth embodiment. FIG. 6 is a cross-sectional view showing the vicinity of the partition wall through hole of the valve device of the sixth embodiment. FIG. 5 is a cross-sectional view showing the vicinity of the partition wall through hole of the valve device of the seventh embodiment. FIG. 5 is a cross-sectional view showing the vicinity of the partition wall through hole of the valve device of the eighth embodiment. FIG. 5 is a cross-sectional view showing the vicinity of the partition wall through hole of the valve device of the ninth embodiment. The figure which shows the partition wall through hole of the valve apparatus of tenth embodiment. The figure which shows the partition wall through hole of the valve apparatus of tenth embodiment. The figure which shows the partition wall through hole of the valve apparatus of eleventh embodiment. FIG. 2 is a cross-sectional view showing the vicinity of the partition wall through hole of the valve device of the twelfth embodiment. The figure which shows the partition wall through hole of the valve apparatus of 13th Embodiment. The figure which shows the valve device of 14th Embodiment. FIG. 61 is a view seen from the direction of arrow LXII. FIG. 61 is a view seen from the direction of arrow LXIII. FIG. 61 is a view seen from the direction of arrow LXIV. FIG. 61 is a view seen from the direction of the arrow LXV. FIG. 62 is a view seen from the direction of the arrow LXVI. FIG. 62 is a sectional view taken along line LXVII-LXVII of FIG. FIG. 64 is a sectional view taken along line LXVIII-LXVIII of FIG. FIG. 67 is a sectional view taken along line LXIX-LXIX of FIG. 67. FIG. 62 is a sectional view taken along line LXX-LXX of FIG. 62. FIG. 62 is a sectional view taken along line LXXI-LXXI. FIG. 62 is a cross-sectional view taken along the line LXXII-LXXII of FIG. 62. FIG. 62 is a sectional view taken along line LXXIII-LXXIII in FIG. The perspective view which shows the valve device of 14th Embodiment. The perspective view which shows the valve device of 14th Embodiment. The perspective view which shows the valve device of 14th Embodiment. The perspective view which shows the valve device of 14th Embodiment. The exploded view which shows the part of the valve apparatus of 14th Embodiment. FIG. 62 is a sectional view taken along line LXXIX-LXXIX. The figure which shows the drive part cover and a part of the drive part of the valve device of 14th Embodiment. The figure which shows the holding member of the valve device of 14th Embodiment. FIG. 81 is a view seen from the direction of the arrow LXXXII. The plan view which shows the drive part of the valve apparatus of 14th Embodiment. FIG. 62 is a cross-sectional view taken along the line LXXXV-LXXXIV of FIG. 62. An exploded perspective view showing a drive unit cover and a part of the drive unit of the valve device of the 14th embodiment. An exploded perspective view showing a drive unit cover and a part of the drive unit of the valve device of the 14th embodiment. The figure which shows the drive part cover and a part of the drive part of the valve device of 1st Embodiment. The figure which shows the holding member of the valve device of 1st Embodiment. FIG. 88 is a view seen from the direction of the arrow LXXXIX. The figure which shows the valve of the valve apparatus of 14th Embodiment. FIG. 90 is a view seen from the direction of arrow XCI. FIG. 90 is a view seen from the direction of arrow XCII. FIG. 90 is a view from the direction of arrow XCIII. FIG. 90 is a view seen from the direction of arrow XCIV. FIG. 93 is a view seen from the direction of arrow XCV. FIG. 91 is a cross-sectional view taken along the line XCVI-XCVI of FIG. The perspective view which shows the valve of the valve apparatus of 14th Embodiment. The perspective view which shows the valve of the valve apparatus of 14th Embodiment. The perspective view which shows the valve and the seal unit of the valve apparatus of 14th Embodiment. The figure which shows a part of the valve of the valve apparatus of 14th Embodiment. The perspective view which shows a part of the valve of the valve apparatus of 14th Embodiment. An exploded perspective view showing a part of a valve of the valve device of the 14th embodiment. The sectional view which shows the partition wall part of the valve apparatus of 14th Embodiment. The perspective view which shows a part of the partition wall part of the valve apparatus of 14th Embodiment. FIG. 6 is a cross-sectional view showing a shaft bearing portion of the valve device of the 14th embodiment and its vicinity. FIG. 6 is a cross-sectional view showing a shaft bearing portion of the valve device of the 14th embodiment and its vicinity. FIG. 3 is a sectional perspective view showing a shaft bearing portion of the valve device of the 14th embodiment and its vicinity. FIG. 67 is a sectional view taken along line CVIII-CVIII of FIG. FIG. 6 is a cross-sectional view showing a gap between a valve body of the valve device of the 14th embodiment and an inner wall of a housing. The figure which shows the housing of the valve apparatus of 14th Embodiment. The perspective view which shows the housing of the valve apparatus of 14th Embodiment. FIG. 64 is a sectional view taken along line CXII-CXII of FIG. The figure which shows the relationship between the rotation position of the valve body of the valve body of the fifteenth embodiment and the opening degree of a port. The figure which shows the relationship between the rotation position of the valve body of the valve body of the fifteenth embodiment, and the polymerization ratio of a valve body opening and a port. The figure which shows the valve device of 16th Embodiment. The figure which shows the valve of the valve apparatus of 17th Embodiment. The figure which shows the valve of the valve apparatus of 18th Embodiment. FIG. 5 is a cross-sectional view showing a part of a partition wall portion of the valve device of the 19th embodiment. FIG. 2 is a cross-sectional view showing a partition wall portion of the valve device of the twentieth embodiment and its vicinity. The figure which shows the housing of the valve apparatus of 21st Embodiment. The perspective view which shows the housing of the valve apparatus of 21st Embodiment. The figure which shows the relationship between the rotation position of the valve body of the valve body of 22nd Embodiment, and the polymerization ratio of a valve body opening and a port. The figure which shows the relationship between the rotation position of the valve body of the valve body of 23rd Embodiment, and the polymerization ratio of a valve body opening and a port. The figure which shows the relationship between the rotation position of the valve body of the valve body of 24th Embodiment, and the opening degree of a port. The figure which shows the relationship between the rotation position of the valve body of the valve body of 24th Embodiment, and the polymerization ratio of a valve body opening and a port. FIG. 2 is a cross-sectional view showing a shaft seal portion of the valve device of the 25th embodiment and its vicinity. The schematic diagram which shows the cooling system which applied the valve device of 26th Embodiment.

Hereinafter, a valve device according to a plurality of embodiments will be described with reference to the drawings. In the plurality of embodiments, substantially the same constituent parts are designated by the same reference numerals, and the description thereof will be omitted. Further, substantially the same constituent sites in a plurality of embodiments have the same or similar effects.
(First Embodiment)
The valve device and the cooling system according to the first embodiment are shown in FIG. The valve device 10 is applied to the cooling system 9 of the vehicle 1. The vehicle 1 is equipped with an internal combustion engine (hereinafter referred to as "engine") 2 as a heating element, a cooling system 9, a heater 6, a device 7, and the like.

<Cooling system>
The cooling system 9 includes a valve device 10, a water pump 4, a radiator 5, an electronic control unit (hereinafter, referred to as “ECU”) 8, and the like. The water pump 4 pumps the cooling water toward the water jacket 3 of the engine 2. The valve device 10 is provided, for example, at the outlet of the water jacket 3, and adjusts the flow rate of the cooling water sent to the radiator 5, the heater 6, and the device 7.

The radiator 5 is a heat exchanger that exchanges heat between the cooling water and air to lower the temperature of the cooling water. The heater 6 and the device 7 are provided between the valve device 10 and the water pump 4. Here, the device 7 includes, for example, an oil cooler, an EGR cooler, an ATF (automatic transmission fluid) cooler, and the like.

When the cooling water is passed through the heater 6, heat exchange is performed between the air in the vehicle 1 and the cooling water. When the cooling water is passed through the device 7, heat exchange is performed between the fluid (oil, EGR gas, etc.) flowing through the device 7 and the cooling water. The ECU 8 can control the operation of the valve device 10 and control the flow rate of the cooling water sent to the radiator 5, the heater 6, and the device 7.

<Valve device>
As shown in FIG. 3, the valve device 10 includes a housing 20, a valve 30, a seal unit 35, a pipe member 50, a partition wall portion 60, a drive unit 70, a drive unit cover 80, and the like.
The housing 20 has a housing body 21 and the like. The housing body 21 is formed of, for example, resin, and forms an internal space 200 inside. A flat mounting surface 201 is formed on the outer wall of the housing body 21. A flat pipe mounting surface 202 is formed on the outer wall of the housing body 21 opposite to the mounting surface 201. Here, the mounting surface 201 is formed so as to be substantially parallel to the pipe mounting surface 202.

Here, the housing body 21 is a part of the housing 20 and means a portion forming the internal space 200. Therefore, the fastening portions 231 to 233, the housing side fixing portions 251 to 256, the housing connection portion 259, and the housing side cover fixing portions 291 to 296, which will be described later, are parts constituting the housing 20, but different from the housing main body 21. Is formed as.

The housing body 21 is formed with a housing opening 210 that connects the internal space 200 and the outside of the housing body 21. Further, the housing main body 21 has a cylindrical housing inner wall 211 having one end connected to the housing opening 210 to form an internal space 200. Here, the housing inner wall 211 is formed so that the shaft is substantially parallel to the mounting surface 201 and the pipe mounting surface 202.

A housing opening 210 is formed on one end side of the housing body 21 in the longitudinal direction, and the other end side in the longitudinal direction is a closed surface.

The housing 20 has an inlet port 220 that opens into the mounting surface 201 and connects the internal space 200 and the outside of the housing body 21. The opening of the inlet port 220 on the mounting surface 201 is circular. Here, the inlet port 220 corresponds to a "port" and a "first port". The housing 20 has outlet ports 221, 222, 223 that open into the pipe mounting surface 202 and connect the internal space 200 to the outside of the housing body 21. Here, the exit ports 221, 222, and 223 correspond to the "port" and the "second port".

The opening of the inlet port 220 is formed in a portion of the inner wall 211 of the housing facing the portion where the openings of the outlet ports 221 to 223 are formed.

As shown in FIG. 8, the housing 20 has a relief port 224 that opens into the pipe mounting surface 202 and connects the internal space 200 and the outside of the housing body 21.

When viewed from the axial direction of the inlet port 220, the inlet port 220 and the relief port 224 partially overlap each other (see FIG. 9).

The outlet ports 221, 222, and 223 are formed so as to be arranged in this order from the end of the housing body 21 opposite to the housing opening 210 toward the housing opening 210. The inner diameter of the outlet port 221 is larger than the inner diameter of the outlet ports 222 and 223.

The valve 30 has a valve body 31, a shaft 32, and the like. The valve body 31 is made of, for example, a resin. The valve body 31 is rotatably provided around the rotation axis Axr1 in the internal space 200. Here, the rotation axis Axr1 is set so as to be substantially parallel to the axis of the housing inner wall 211. The valve body 31 is composed of a first divided body 33 and a second divided body 34 divided into two by a virtual plane Vp1 including a rotation axis Axr1, and the first divided body 33 and the second divided body 34 are joined to each other. It is joined by a surface (see FIG. 6).

The valve body 31 has ball valves 41, 42, 43, a cylindrical connection portion 44, and a tubular valve connection portion 45. Here, the ball valves 41, 42, and 43 correspond to the "first ball valve", the "second ball valve", and the "third ball valve", respectively. Further, the cylindrical connection portion 44 and the tubular valve connection portion 45 correspond to the “cylindrical portion”. The ball valves 41, 42, and 43 are each formed in a substantially spherical shape, and an internal valve body flow path 300 is formed inside. The outer peripheral walls of the ball valves 41, 42, and 43 are formed in a spherical shape that is convex outward in diameter of the rotation axis Axr1. The inner peripheral walls of the ball valves 41, 42, and 43 are formed in a spherical shape so as to be recessed outward in the diameter of the rotating shaft Axr1.

The tubular connection portion 44 is formed in a cylindrical shape so as to connect the ball valve 41 and the ball valve 42. The tubular valve connecting portion 45 is formed in a cylindrical shape so as to connect the ball valve 42 and the ball valve 43. Here, the tubular valve connecting portion 45 forms an internal valve body flow path 300 inside. The ball valve 41, the tubular connection portion 44, the ball valve 42, the tubular valve connection portion 45, and the ball valve 43 are integrally formed in this order.

Each of the ball valves 41, 42, and 43 is formed with valve body openings 410, 420, and 430 that connect the valve body flow path 300 and the outside of the valve body 31. A valve-to-valve space 400 is formed between the ball valve 41 and the ball valve 42 on the radial outer side of the tubular connection portion 44. The inter-valve space 400 communicates with the internal flow paths 300 of the ball valves 41 and 42, respectively.

In the valve body 31, the valve body opening 410 corresponds to the position of the outlet port 221, the intervalve space 400 corresponds to the position of the inlet port 220, and the valve body opening 420 corresponds to the outlet port 222 and the outlet port 222 in the rotation axis Axr1 direction. A valve body opening 430 is provided in the internal space 200 to correspond to the position of the inlet port 220 and to correspond to the position of the outlet port 223.

The shaft 32 is formed in a rod shape by, for example, metal, and is provided on the rotating shaft Axr1. Here, the shaft 32 is provided integrally with the valve body 31. The shaft 32 can rotate around the rotation shaft Axr1 together with the valve body 31.

The shaft 32 is made of stainless steel such as SUS430 series.

As shown in FIG. 3, the rotation shaft Axr1 is set to extend from the outside of the housing body 21 to the outside of the drive unit cover 80. That is, the rotation axis Axr1 is defined as a straight line that exists not only in the internal space 200 but also outside the housing body 21. The shaft 32 is provided on the rotating shaft Axr1 so that the shaft is along the rotating shaft Axr1.

The valve body 31 is provided in the internal space 200 so as to be rotatable around the rotation axis Axr1. The shaft 32 is provided on a straight line along the rotation axis Axr1. That is, the shaft 32 is provided on at least a part of the rotating shaft Axr1.

As shown in FIG. 3, in the present embodiment, the shaft 32 has a flow inside the valve body 31 from the outside of the first outermost end surface 301 which is one end surface in the rotation axis Axr1 direction of the valve body 31. It is provided so as to pass through the road 300 and extend to the outside of the second outermost end surface 302, which is the other end surface.

On the other hand, in another embodiment, the shaft 32 may be provided so as to extend from the outside of the first outermost end surface 301 of the valve body 31 to the inner wall of the valve body 31 so as not to protrude into the valve body flow path 300. That is, the shaft 32 does not have to exist in the valve body flow path 300 or the internal space 200, and if it is provided on a straight line along the rotation axis Axr1, it is provided at any position with respect to the valve body 31. It may have been.

The pipe member 50 is made of, for example, a resin. As shown in FIGS. 3 and 8, the pipe member 50 has pipe portions 511 to 517, a pipe connecting portion 52, and the like. The pipe portions 511 to 517 are each formed in a cylindrical shape. The pipe portion 511 is provided so that one end thereof is located inside the outlet port 221. The pipe portion 512 is provided so that one end thereof is located inside the outlet port 222. The pipe portion 513 is provided so that one end thereof is located inside the outlet port 223. One end of the pipe portion 514 is provided so as to correspond to the position of the relief port 224.

The pipe portion 515 is provided so that one end thereof is connected to the pipe portion 511 and the pipe portion 514. The pipe portion 516 is provided so that one end thereof is connected to the pipe portion 511. The pipe portion 517 is provided so that one end thereof is connected to the pipe portion 512.

The pipe connecting portion 52 is formed so as to connect one end side of the pipe portions 511 to 515. The pipe member 50 is fixed to the housing body 21 so that the pipe connecting portion 52 abuts on the pipe mounting surface 202. Between the pipe connecting portion 52 and the pipe mounting surface 202, a gasket 509 that can hold between the pipe member 50 and the housing body 21 in a liquid-tight manner is provided.

The other ends of the pipe portions 511, 514, and 515 are connected to the radiator 5 via a hose or the like. The other end of the pipe portion 512 is connected to the heater 6 via a hose or the like. The other end of the pipe portion 513 is connected to the device 7 via a hose or the like. The other end of the pipe portion 516 is connected to a reservoir tank (not shown) via a hose or the like. The other end of the pipe portion 517 is connected to a throttle (not shown) via a hose or the like.

The seal unit 35 is provided at each of the outlet ports 221, 222, and 223. As shown in FIG. 4, the seal unit 35 has a valve seal 36, a sleeve 371, a spring 372, and a seal member 373. The valve seal 36 is formed in a substantially annular shape with, for example, a resin, and has a seal opening 360 inside. The valve seal 36 is provided so that one surface is in contact with the outer peripheral wall of the valve body 31, and can be liquidtightly held between the valve seal 36 and the outer peripheral wall of the valve body 31.

The valve seal 36 is formed of, for example, a material in which PTFE (polytetrafluoroethylene) is mixed with 14% graphite and 1% CF (carbon fiber). Therefore, the valve seal 36 has a lower coefficient of friction than the valve body 31 and the like, and has improved wear resistance, compressive strength, and creep resistance.

The sleeve 371 is formed of, for example, a metal cylinder and holds the valve seal 36 at one end. The other end of the sleeve 371 is located inside one end of the pipe portion 511. The spring 372 is provided between one end of the sleeve 371 and one end of the pipe portion 511, and urges the valve seal 36 toward the valve body 31 side together with the sleeve 371. The seal member 373 is formed in an annular shape by, for example, rubber, is provided between one end of the pipe portion 511 and the outer peripheral wall of the sleeve 371, and can hold the space between the pipe portion 511 and the sleeve 371 in a liquid-tight manner.

The sleeve 371 is made of stainless steel such as SUS430. Therefore, the corrosion resistance of the sleeve 371 is relatively high. Further, since SUS430 has good pressability, the sleeve 371 can be easily pressed.

Since the seal unit 35 provided at the outlet port 222 and 223 has the same configuration as the seal unit 35 provided at the outlet port 221, the description thereof will be omitted. The three seal units 35 are attached to one ends of the pipe portions 511, 512, and 513, respectively.

The sleeve 371, spring 372, and valve seal 36 of the seal unit 35 provided at the outlet port 222 and 223 have a smaller outer diameter than the sleeve 371, spring 372, and valve seal 36 of the seal unit 35 provided at the outlet port 221. .. Here, the spring load of the spring 372 of each seal unit 35 provided in the outlet ports 221 to 223 is set to a load that satisfies the required leakage amount for compressing and sealing the valve seal 36. The spring 372 of each seal unit 35 provided in the outlet ports 221 to 223 has different leakage targets depending on the size, and the physique is also different, so that the spring constant is also different depending on the size.

The spring 372 is made of stainless steel such as SUS316. Therefore, the spring 372 has good spring property and high corrosion resistance. As a result, stress corrosion cracking of the spring 372 can be suppressed.

The partition wall portion 60 is formed of, for example, a resin. The partition wall portion 60 is formed separately from the housing main body 21. The partition wall portion 60 has a partition wall portion main body 61 and the like. The partition wall main body 61 is formed in a substantially disk shape. The partition wall portion 60 is provided in the housing main body 21 so that the partition wall portion main body 61 closes the housing opening 210. The partition wall portion 60 has a shaft insertion hole 62 penetrating the center of the partition wall portion main body 61 in the plate thickness direction. The valve 30 is provided so that one end of the shaft 32 inserts the shaft insertion hole 62. One end of the shaft 32 is bearing by the partition wall main body 61, and the other end is bearing by the housing main body 21.

The drive unit cover 80 is provided on the side opposite to the internal space 200 with respect to the partition wall portion 60, and forms the drive unit space 800 with the partition wall portion 60.

The drive unit 70 is provided in the drive unit space 800, and can rotationally drive the valve body 31 via one end of the shaft 32. The drive unit 70 has a motor 71, a gear unit 72, and the like. The gear portion 72 is connected to one end of the shaft 32. When the ECU 8 controls the power supplied to the motor 71, the driving force of the motor 71 is transmitted to the shaft 32 via the gear portion 72. As a result, the valve body 31 is rotationally driven.

As shown in FIG. 5, the relief port 224 is provided with a relief valve 39. The relief valve 39 is opened under predetermined conditions, for example, when the temperature of the cooling water exceeds the predetermined temperature, and the internal space 200 via the relief port 224 and the outside of the housing body 21, that is, the inside of the pipe portion 515. It allows communication with the space and cuts off the communication when the temperature of the cooling water becomes lower than the predetermined temperature.

As shown in FIG. 5, the relief valve 39 is provided at a position facing the inlet port 220 with the inter-valve space 400 in between. That is, the relief valve 39 is provided at a position visible from the inlet port 220. More specifically, the relief valve 39 is at least partially visible when viewed from the axial direction of the inlet port 220.

Therefore, the cooling water flowing into the internal space 200 from the inlet port 220 can be directly applied to the relief valve 39, and the relief valve 39 can be quickly opened according to the temperature of the cooling water.

As shown in FIGS. 3 and 6, the partition wall portion 60 is formed with a C-shaped regulating recess 63 that is recessed from the surface of the partition wall portion main body 61 on the internal space 200 side to the drive portion 70 side. A regulation portion 631 is formed between the peripheral ends of the regulation recess 63. As shown in FIGS. 3 and 6, the valve body 31 has a first regulation convex portion 332 and a second regulation that extend from the end surface on the drive portion 70 side toward the regulation recess 63 and have the tip portion located in the regulation recess 63. The convex portion 342 is formed. Therefore, the rotation of the valve body 31 is restricted when the first regulated convex portion 332 comes into contact with the regulated portion 631 and when the second regulated convex portion 342 comes into contact with the regulated portion 631. That is, the valve body 31 can rotate in a range from the position where the first regulation convex portion 332 abuts on the regulation portion 631 to the position where the second regulation convex portion 342 abuts on the regulation portion 631.

The valve device 10 is attached to the engine 2 so that the inlet port 220 connects to the outlet of the water jacket 3. Therefore, the cooling water that has flowed into the internal space 200 from the inlet port 220 flows into the valve internal flow path 300 via the inter-valve space 400. Further, when the valve body openings 430, 420, 410 and the respective seal openings 360 overlap due to the rotation of the valve body 31, cooling water flows from the valve body flow path 300 to the valve body opening according to the overlapping area. It flows to the device 7, the heater 6, and the radiator 5 via 430, 420, and 410.

The ECU 8 controls the operation of the motor 71 and controls the rotation position of the valve body 31 to allow cooling water to flow through the device 7 and exchange heat in the device 7, so that the engine oil and EGR gas are cooled to improve fuel efficiency. Can be improved. Further, since the cooling water can flow through the heater 6 and heat can be exchanged between the air in the vehicle 1 and the cooling water, the inside of the vehicle 1 can be warmed.

FIG. 7 shows the rotation position (horizontal axis) of the valve body 31 and the open / closed state (vertical axis) of the valve body openings 430, 420, 410, that is, the valve body openings 430, 420, 410 and their respective seal openings. It is a figure which shows the relationship with the overlap area with 360. Here, the overlapping area between the valve body openings 430, 420, 410 and the respective seal openings 360 corresponds to the area of the cooling water flow path to the device 7, the heater 6, and the radiator 5.

The ECU 8 selects a "normal mode" used when there is a request for flowing cooling water to the heater 6 (heater request) and a "heater cut mode" used when there is no heater request, and the valve body 31 To rotate. In the "normal mode" and the "heater cut mode", all the valve body openings 430, 420, and 410 are closed by the outer peripheral wall of the valve body 31 (fully closed state: see FIG. 3), and the device 7, the heater 6 are used. , A region (region d) where the flow rate of the cooling water to the radiator 5 becomes zero is separated. In the region d, the flow of cooling water to the device 7, the heater 6, and the radiator 5 is blocked.

In the "normal mode", the passage of water to the heater 6 has the highest priority. In FIG. 7, when the valve body 31 is rotated in the direction traveling to the right from the area d, the rotation position of the valve body 31 shifts to the area (region c) adjacent to the area d. In the region c, the valve body opening 420 begins to open, and cooling water begins to flow into the heater 6. Further, when the valve body 31 is rotated, the valve body opening 420 is completely opened, and the rotation position of the valve body 31 shifts to the region (region b) adjacent to the region c. In the region b, the valve body opening 430 starts to open, and the cooling water starts to flow to the device 7. Further, when the valve body 31 is rotated, the valve body opening 430 is completely opened, and the rotation position of the valve body 31 shifts to the region (region a) adjacent to the region b. In the region a, the valve body opening 410 starts to open, and the cooling water starts to flow to the radiator 5. When the valve body 31 is further rotated, the valve body opening 410 is completely opened (fully opened state). The rotation position of the valve body 31 in which the valve body opening 410 is completely opened corresponds to the rotation limit of the valve body 31, and at this time, the first regulation convex portion 332 abuts on the regulation portion 631. (See Fig. 6).

In the "heater cut mode", water is not passed through the heater 6, and water is given priority over the radiator 5 to the device 7. In FIG. 7, when the valve body 31 is rotated in the direction traveling to the left from the region d, the valve body 31 shifts to the region (region e) adjacent to the region d. In the region e, the valve body opening 430 begins to open, and cooling water begins to flow to the device 7. Further, when the valve body 31 is rotated, the valve body opening 430 is completely opened, and the rotation position of the valve body 31 shifts to the region (region f) adjacent to the region e. In the region f, only the valve body opening 430 is opened, and the cooling water flows only to the device 7. Further, when the valve body 31 is rotated, the rotation position of the valve body 31 shifts to the region (region g) adjacent to the region f. In the region g, the valve body opening 410 starts to open, and the cooling water starts to flow to the radiator 5. Further rotation of the valve body 31 completely opens the valve body opening 410. The ECU 8 can achieve both fuel efficiency and air conditioning performance by rotationally driving the valve body 31 based on the "normal mode" and the "heater cut mode" shown in FIG. 7.

As shown in FIG. 2, the engine 2 is assembled with an intake manifold 11, an alternator 12, a water pump 4, a compressor 13, a starter 14, a transmission 15, and the like. The valve device 10 is attached to the engine 2 in the narrow space A1 between the alternator 12 and the intake manifold 11. Here, the valve device 10 is attached to the engine 2 so that the drive unit 70 side faces downward in the vertical direction. Therefore, the air such as vapor generated in the internal space 200 or the like moves upward in the vertical direction and is discharged to the reservoir tank via the pipe portion 516.

As shown in FIG. 2, the narrow space A1 in which the valve device 10 is arranged is formed between the alternator 12 and the intake manifold 11 which are attached to the engine 2 so as to be arranged in the horizontal direction. Further, the compressor 13 is arranged on the lower side in the vertical direction of the narrow space A1. Therefore, the valve device 10 provided in the narrow space A1 is surrounded by the alternator 12, the intake manifold 11, and the compressor 13.

<1-2> Housing Fastening Hole As shown in FIGS. 8, 9, and 10, the housing 20 has fastening portions 231, 232, and 233 integrally formed with the housing main body 21. The fastening portions 231, 232, and 233 are formed so as to project from the end portion of the housing body 21 on the mounting surface 201 side in the surface direction of the mounting surface 201. Further, the housing 20 has fastening holes 241, 242, and 243 formed corresponding to the fastening portions 231, 232, and 233, respectively. Here, the fastening holes 241 and 242, 243 correspond to the "first fastening hole", the "second fastening hole", and the "third fastening hole", respectively.

The fastening member 240 is inserted into the fastening holes 241 and 242, 243 and fastened to the engine 2. As a result, the valve device 10 is attached to the engine 2. An annular rubber port seal member 209 is provided on the radial outer side of the inlet port 220 of the mounting surface 201. The port seal member 209 is in a state of being compressed by the axial force of the fastening member 240 when the valve device 10 is attached to the engine 2. As a result, the port seal member 209 can hold the space between the mounting surface 201 and the engine 2 in a liquid-tight manner, and can prevent the cooling water from leaking from the inlet port 220 through the space between the mounting surface 201 and the engine 2. ..

The port seal member 209 is made of rubber such as EPDM (ethylene propylene rubber). Therefore, the cost can be reduced. The port seal member 209 may be formed of, for example, H-NBR. In this case, the oil resistance of the port seal member 209 can be improved. Further, the port seal member 209 may be formed by, for example, FKM. In this case, the water resistance and heat resistance of the port seal member 209 can be improved. Therefore, it is suitable for use as an engine component that is easily affected by heat.

As shown in FIGS. 9 and 10, the fastening hole 241 is formed on the radial outside of the opening of the inlet port 220 on the mounting surface 201. The fastening hole 242 is formed so as to sandwich the opening of the inlet port 220 between the fastening hole 242 and the fastening hole 241. The fastening hole 243 is formed on the drive portion 70 side with respect to the fastening holes 241 and 242.

<1-2>
As described above, the present embodiment is a valve device 10 capable of controlling the cooling water of the engine 2 of the vehicle 1, and includes a housing 20, a valve 30, a partition wall portion 60, and a drive portion 70.

The housing 20 is formed on the housing main body 21 forming the internal space 200 inside, and is opened on the mounting surface 201 and the mounting surface 201 facing the engine 2 in a state of being mounted on the outer wall of the housing main body 21 and the internal space 200 is formed. It is formed corresponding to each of an inlet port 220 connecting the outside of the housing body 21 and a plurality of fastening portions (231, 232, 233) integrally formed with the housing body 21, and a plurality of fastening portions. It has a plurality of fastening holes (241, 242, 243).

The valve 30 is provided in the valve body 31 that can rotate around the rotation shaft Axr1 in the internal space 200, the valve body flow path 300 that is formed inside the valve body 31 and can communicate with the inlet port 220, and the rotation shaft Axr1. It has a shaft 32.

The partition wall portion 60 separates the internal space 200 from the outside of the housing body 21.

The drive unit 70 is provided on the side opposite to the internal space 200 with respect to the partition wall unit 60, and can rotationally drive the valve body 31 via the shaft 32.

The housing body 21 is fixed to the engine 2 by a fastening member 240 that passes through the fastening holes (241, 242, 243) and is screwed into the engine 2.

The fastening hole is a first fastening hole (241) formed on the radial outer side of the opening of the inlet port 220, and a second fastening hole (242) formed so as to sandwich the opening of the inlet port 220 between the first fastening hole and the first fastening hole. ), And a third fastening hole (243) formed on the drive unit 70 side with respect to the first fastening hole and the second fastening hole.

Like the third fastening hole (243), the first fastening hole (241) is formed on the drive portion 70 side of the center of the inlet port 220.

Therefore, when the port seal member 209 made of an annular elastic member is provided around the inlet port 220, when the housing body 21 is fixed to the engine 2 by the fastening member 240 passing through the fastening hole 241 and the fastening hole 242, the port seal member 209 can be compressed in a well-balanced manner. As a result, the sealing property around the inlet port 220 can be effectively secured.

Further, by fixing the fastening portion 233 to the engine 2 by the fastening member 240 passing through the fastening hole 243, it is possible to suppress the influence of the vibration of the engine 2 on the drive portion 70.

<1-2-1>
The center Cp1 of the opening of the inlet port 220 is located on the first straight line Li1 which is a straight line connecting the fastening hole 241 and the fastening hole 242.

Therefore, the port seal member 209 can be compressed in a more balanced manner.

In the present embodiment, the first straight line Li1 connects the center of the fastening hole 241 and the center of the fastening hole 242. In another embodiment, the first straight line Li1 may connect an arbitrary point other than the center of the fastening hole 241 to an arbitrary point other than the center of the fastening hole 242.

<1-2-2>
The distance between the center Cp1 of the opening of the inlet port 220 and the fastening hole 241 is the same as the distance between the center Cp1 of the opening of the inlet port 220 and the fastening hole 242.

The fastening hole 241 and the fastening hole 242 face each other with the inlet port 220 interposed therebetween.

Therefore, the port seal member 209 can be compressed in a more balanced manner.

<1-2-3>
The distance between the fastening hole 243 and the drive unit 70 is shorter than the distance between the fastening hole 243 and the center Cp1 of the opening of the inlet port 220.

Therefore, the influence of the vibration of the engine 2 on the drive unit 70 can be further suppressed.

<1-2-4>
The fastening hole 243 is formed so that the center is located on the drive unit 70 side with respect to the virtual plane Vp2 that passes through the center of the outlet port 223 and is orthogonal to the rotation axis Axr1 (see FIG. 8). The motor 71 is provided so that the center of gravity Cg1 is located on the fastening hole 243 side with respect to the rotating shaft Axr1 when viewed from the axial direction of the fastening hole 243 (see FIGS. 8 and 9).

Therefore, the influence of the vibration of the engine 2 on the drive unit 70 can be further suppressed.

<1-3>
The fastening hole 241 and the fastening hole 242 are formed so as to be point-symmetric with respect to the center Cp1 of the opening of the inlet port 220.

The fastening hole 241 and the fastening hole 242 are concentric circles.

Therefore, the port seal member 209 can be compressed in a more balanced manner.

<1-3-1>
The fastening hole 241 and the fastening hole 242 that are point-symmetric with respect to the center Cp1 of the opening of the inlet port 220 are perpendicular to the opening surface of the inlet port 220 and a straight line passing through the center Cp1 of the opening of the inlet port 220 is the axis of rotation Axr1. It is formed to pass through.

The fastening hole 241 and the fastening hole 242 that are point-symmetric with respect to the center Cp1 of the opening of the inlet port 220 are rotated by "a straight line perpendicular to the opening surface of the inlet port 220 and passing through the center Cp1 of the opening of the inlet port 220". It is formed to pass through the axis Axr1.

Therefore, the port seal member 209 can be compressed in a more balanced manner.

<1-4>
The housing 20 has positioning portions 205 and 206 formed on the mounting surface 201 and capable of positioning the housing body 21 by engaging with other members. The positioning portions 205 and 206 are formed so as to be recessed in a circle from the mounting surface 201. Here, the positioning units 205 and 206 correspond to the "first positioning unit" and the "second positioning unit", respectively. Further, the other member corresponds to, for example, a pallet used in the manufacturing process of the valve device 10, an engine 2 as an attachment target of the valve device 10, and the like. By engaging the positioning portions 205 and 206 with the protrusions formed on the pallet and the engine 2, the housing body 21 can be positioned with respect to the pallet and the engine 2.

The positioning portion 205 is formed on the radially outer side of the opening of the inlet port 220. The positioning portion 206 is formed so as to sandwich the opening of the inlet port 220 with the positioning portion 205.

Therefore, the housing body 21 can be accurately positioned in the manufacturing process, and the processing accuracy can be improved. Further, when the housing body 21 is attached to the engine 2, the housing body 21 can be accurately positioned, and the cooling water can be controlled by the valve device 10 with high accuracy. Further, after the attachment to the engine 2, the position of the housing body 21 with respect to the engine 2 is stable, and the sealing performance by the port seal member 209 can be improved.

<1-4-1>
The positioning unit 205 and the positioning unit 206 are formed so that the second straight line Li2, which is a straight line connecting the positioning unit 205 and the positioning unit 206, is orthogonal to the first straight line Li1 connecting the fastening hole 241 and the fastening hole 242. There is.

Therefore, the position of the housing body 21 with respect to the engine 2 can be made more stable.

<1-4-2>
The center of the first straight line Li1 and the center of the second straight line Li2 coincide with each other.

Therefore, the position of the housing body 21 with respect to the engine 2 can be made more stable.

As shown in FIG. 9, the mounting surface 201 is formed on the surface of the housing main body 21 and the fastening portions 231 to 233 opposite to the pipe member 50, and is a substantially rectangular portion, extending in the width direction from the rectangular portion 3 It consists of two parts and a curved part along the outer circumference of the inlet port 220. The positioning portions 205 and 206 are formed in a substantially rectangular portion of the mounting surface 201. The positioning units 205 and 206 become stable as the distance increases. Therefore, the positioning portions 205 and 206 are provided on the outer peripheral portion of the substantially rectangular portion of the mounting surface 201.

<1-5>
The housing 20 has a mounting surface recess 207 that is recessed from the mounting surface 201 to the side opposite to the engine 2.

Therefore, the heat of the engine 2 can be insulated by the mounting surface recess 207, and the influence of the heat from the engine 2 on the drive unit 70 can be suppressed.

<1-5-1>
A plurality of mounting surface recesses 207 are formed, and ribs 208 between the recesses are formed between the plurality of mounting surface recesses 207.

Therefore, it is possible to secure the contact area of the mounting surface 201 with the engine 2 while insulating the heat of the engine 2 by the mounting surface recess 207.

As shown in FIG. 9, the mounting surface recess 207 has a rectangular concave recess 275 and a substantially trapezoidal trapezoidal recess 276. The recessed rib 208 has a lateral rib 285 extending in the lateral direction and a longitudinal rib 286 extending in the longitudinal direction in a substantially rectangular portion of the mounting surface 201.

Two trapezoidal recesses 276 are formed on the side opposite to the drive portion 70 with respect to the inlet port 220 of the substantially rectangular portion of the mounting surface 201 so as to be lined up in the lateral direction. Two rectangular recesses 275 are formed on the opposite side of the trapezoidal recess 276 from the inlet port 220 so as to be arranged in the lateral direction. A rib 285 in the lateral direction is formed between the rectangular recess 275 and the trapezoidal recess 276. Longitudinal ribs 286 are formed between the two trapezoidal recesses 276 and the two rectangular recesses 275. The trapezoidal recess 276 is smaller than the rectangular recess 275.

Two rectangular recesses 275 are formed on the drive portion 70 side with respect to the inlet port 220 of the substantially rectangular portion of the mounting surface 201 so as to be arranged in the lateral direction. Two rectangular recesses 275 are formed on the opposite side of the rectangular recess 275 from the inlet port 220 so as to be arranged in the lateral direction. A rib 285 in the lateral direction is formed between the rectangular recesses 275 arranged in the longitudinal direction. Longitudinal ribs 286 are formed between the rectangular recesses 275 arranged in the lateral direction.

The distance between the lateral rib 285 formed on the side opposite to the drive unit 70 and the inlet port 220 with respect to the inlet port 220 in the substantially rectangular portion of the mounting surface 201 is the distance between the inlet port in the substantially rectangular portion of the mounting surface 201. It is smaller than the distance between the lateral rib 285 formed on the drive unit 70 side and the inlet port 220 with respect to 220.

Two trapezoidal recesses 276 are formed on the mounting surfaces 201 of the fastening portions 231 to 233. In the fastening portions 231 to 233, a rib 285 in the lateral direction is formed between the two trapezoidal recesses 276.

An outer peripheral rib 287 surrounding the mounting surface recess 207 is formed on the outer edge of the substantially rectangular portion of the mounting surface 201.

An outer peripheral rib 287 surrounding the mounting surface recess 207 is formed on the outer edge of the mounting surface 201 of the fastening portions 231 to 233.

The mounting surface recesses 207 are formed independently of each other, and the ribs 208 between the recesses and the outer peripheral ribs 287 between the mounting surface recesses 207 can improve the robustness against vibration of the engine 2.

The longitudinal rib 286 extends in the direction of the rotation axis Axr1. That is, when viewed from the axial direction of the inlet port 220, the longitudinal rib 286 and the rotation axis Axr1 overlap each other (see FIG. 9). Therefore, deformation in the direction perpendicular to the mounting surface 201 can be suppressed. If such deformation occurs, the parts inside the valve device 10 may be displaced, causing cooling water leakage to the inside or the outside, and the function of the valve device 10 may be deteriorated. This embodiment can suppress such a problem.

In the present embodiment, the ratio of the size of the mounting surface recess 207 to the mounting surface 201 is 50 to 9.5%.

By providing the mounting surface recess 207 on the side opposite to the internal space 200 in which the valve 30 is provided, the wall surface without the space in which the valve 30 is provided becomes uniform in thickness, and the space accuracy of the internal space 200 is improved. If the spatial accuracy of the internal space 200 is good, the wall surface resistance can be reduced and the pressure loss can be reduced.

<1-1-5-1>
The housing body 21 is made of polyphenylene sulfide resin (PPS) containing a filler. More specifically, the housing body 21 is formed of "PPS-GF50" (PPS: 50%, glass fiber: 50%). As the filler, carbon fiber, silica, talc, silicon and the like can be adopted in addition to glass fiber.

Therefore, the heat resistance, water absorption resistance, strength, and dimensional accuracy of the housing body 21 can be improved.

The occupancy of the glass with respect to the resin of the housing body 21 may be in the range of 20 to 80%.

The valve body 31, the housing body 21, and the partition wall portion 60 are all formed of PPS.

By forming the valve body 31, the housing main body 21, and the partition wall portion 60 with the same resin material, it is possible to eliminate the difference in linear expansion and reduce galling. If there is a difference in linear expansion between the members, cooling water leakage may occur. This embodiment can suppress such a problem.

By forming the valve body 31, the housing body 21, and the partition wall portion 60 with PPS, the strength, heat resistance, and chemical resistance of the valve body 31, the housing body 21, and the partition wall portion 60 can be improved.

The pipe member 50 is formed of, for example, PPA (polyphthalamide). Thereby, the pipe member 50 can be formed by forcibly pulling out.

The linear expansion coefficient of the valve body 31, the housing body 21, and the partition wall portion 60 formed of PPS is smaller than the linear expansion coefficient of the pipe member 50 formed of PPA. Therefore, it is possible to reduce the distortion and the influence on the assembly when heat is applied.

In another embodiment, the valve body 31, the housing body 21, and the partition wall portion 60 may be formed of PPA.

<1-6>
As shown in FIG. 9, the fastening portion 233 in which the fastening hole 243 as the third fastening hole is formed is formed at a position adjacent to the partition wall portion 60.

Therefore, the vibration of the drive unit 70 can be reduced.

<1-7>
As shown in FIG. 9, the fastening portions 231, 232, and 233 have a mounting surface 201 on the engine 2 side, and have a mounting surface recess 207 that is recessed from the mounting surface 201 to the side opposite to the engine 2.

Therefore, the wall thickness of the fastening portions 231 and 232, 233 can be made uniform. As a result, it is possible to prevent the generation of voids, and it is possible to suppress a decrease in the resin strength around the collar provided in the fastening holes 241 and 242, 243 of the fastening portions 231 and 232, 233. Further, even when the thin wall around the collar is cracked first due to the vibration from the engine 2, the crack can be suppressed from reaching the internal space 200 as a result of the mounting surface recess 207.

<1-8>
As shown in FIG. 9, the housing 20 is formed between the positioning portions 205 and 206 formed on the mounting surface 201 and capable of positioning the housing body 21 by engaging with other members, and between the plurality of mounting surface recesses 207. It has a rib 208 between recesses to be formed. The positioning portions 205 and 206 are formed at the grid points 204 of the ribs 208 between the recesses.

Therefore, the housing body 21 can be stably positioned.

<1-9>
As shown in FIG. 9, the housing 20 has positioning portions 205 and 206 formed on the mounting surface 201 and capable of positioning the housing body 21 by engaging with other members. One fastening portion (231) is formed on one side of the housing main body 21 in the width direction, and two fastening portions (232, 233) are formed on the other side of the housing main body 21 in the width direction. The positioning portion 205 is formed on one side in the width direction of the housing body 21 in which one fastening portion (231) is formed. Here, the width direction of the housing body 21 is a direction corresponding to the lateral direction of the housing body 21 when the housing body 21 is viewed from a direction perpendicular to the mounting surface 201.

Therefore, since the positioning portion 205 is set as the fourth point on the side of only one of the three fastening portions, the balance in both the left and right directions (width direction) of the housing main body 21 can be ensured.

<1-10>
As shown in FIG. 9, the inlet port 220 is formed between the fastening portion 233 and the positioning portion 205, which are the farthest from the inlet port 220 among the plurality of fastening portions.

Therefore, the balance in both the left and right directions (width direction) of the housing body 21 can be further secured.

<2-1> Drive unit S / A
As shown in FIG. 11, the partition wall 60 is provided in the housing opening 210 so as to separate the internal space 200 from the outside of the housing body 21, and the shaft 32 can be bearing. The drive unit cover 80 is provided on the side opposite to the internal space 200 with respect to the partition wall portion 60, and forms the drive unit space 800 with the partition wall portion 60. The drive unit 70 is provided in the drive unit space 800, and can rotationally drive the valve body 31 via the shaft 32.

<2-1>
As described above, the present embodiment is a valve device 10 capable of controlling the cooling water of the engine 2 of the vehicle 1, and includes a housing 20, a valve 30, a partition wall 60, a drive unit cover 80, and a drive unit 70. ..

The housing 20 includes a housing body 21 that forms an internal space 200 inside, a port (220, 221, 222, 223) that connects the internal space 200 and the outside of the housing body 21, and an internal space 200 and the housing body 21. It has a housing opening 210 that connects to the outside.

The valve 30 connects a valve body 31 that can rotate around the rotation axis Axr1 in the internal space 200, a valve body flow path 300 formed inside the valve body 31, a valve body flow path 300, and the outside of the valve body 31. It has a valve body opening (410, 420, 430) and a shaft 32 provided on the rotation shaft Axr1, and has a valve body flow path 300 and a port (4, 420, 430) via the valve body opening (410, 420, 430). The communication state with 220, 221, 222, 223) can be changed by the rotation position of the valve body 31.

The partition wall portion 60 is provided in the housing opening 210 so as to separate the internal space 200 from the outside of the housing body 21, and the shaft 32 can be bearing.

The drive unit cover 80 is provided on the side opposite to the internal space 200 with respect to the partition wall portion 60, and forms the drive unit space 800 with the partition wall portion 60.

The drive unit 70 is provided in the drive unit space 800, and can rotationally drive the valve body 31 via the shaft 32.

In this embodiment, no member such as a joint is required between the drive unit 70 and the shaft 32. Therefore, the configuration around the drive unit 70 can be simplified.

Further, by sharing the partition wall portion 60 as a member for bearing the shaft 32 and a member for accommodating the drive portion 70, the coaxial accuracy between the drive portion 70 and the valve body 31 can be improved. In addition, the number of members can be reduced.

As shown in FIG. 11, of the surface of the partition wall portion main body 61 on the internal space 200 side, the inner portion of the regulation recess 63 is located slightly closer to the internal space 200 than the outer portion of the regulation recess 63.

The inner peripheral portion of the housing main body 21 facing the partition main body 61 has a stepped shape.

The gap between the partition wall main body 61 on which the annular seal member 600 is provided and the housing opening 210 is formed in a tapered shape. As a result, the annular seal member 600 can be easily provided in the gap. If engine oil enters the gap, the annular seal member 600 may swell, break, and leak cooling water. Further, if the annular seal member 600 is caught, the annular seal member 600 may be cut off, cooling water may leak, and engine oil may enter from the outside to the inside. In this embodiment, this problem can be suppressed.

<2-1-1>
The valve device 10 is provided between the housing opening 210 and the partition wall 60, and further includes an annular sealing member 600 capable of liquid-tightly holding between the housing opening 210 and the partition wall 60. The annular seal member 600 is formed in an annular shape by an elastic member such as rubber.

The inner wall of the housing opening 210 is formed in a cylindrical shape. The partition wall portion 60 has a partition wall portion main body 61 located inside the housing opening 210 and having an outer wall formed in a cylindrical shape. The annular seal member 600 is provided between the housing opening 210 and the partition wall main body 61. The difference between the inner diameter of the housing opening 210 and the outer diameter of the partition wall main body 61 is smaller than the difference between the inner diameter and the outer diameter of the annular sealing member 600 in the free state. Therefore, the annular seal member 600 is compressed in the radial direction between the housing opening 210 and the partition wall main body 61.

As shown in FIG. 11, the housing opening 210 is formed with an annular opening step surface 604, 605, 606. The open step surfaces 604, 605, and 606 are formed in this order from the internal space 200 side in the rotation axis Axr1 direction toward the drive unit 70 side. The open step surfaces 604 and 606 are formed in an annular planar shape. The opening step surface 605 is formed in a tapered shape so as to approach the rotation axis Axr1 from the drive unit 70 side toward the internal space 200 side.

An annular partition wall step surface 611, 612 is formed on the outer edge portion of the partition wall portion main body 61. The partition wall step surface 611 is formed in an annular planar shape so as to face the opening step surface 604. The partition wall step surface 612 is formed in an annular planar shape so as to face the opening step surfaces 605 and 606.

The annular seal member 600 is provided between the opening step surface 604 and the partition wall step surface 611.

<2-2>
The annular seal member 600 is radially compressed between the housing opening 210 and the partition wall 60.

Therefore, the shaft 32 is centered by the annular seal member 600, and the position accuracy of the valve body 31 and the detection accuracy of the rotation angle sensor 86 described later can be improved.

The center of the inner peripheral wall and the center of the outer peripheral wall of the annular seal member 600 coincide with each other. Therefore, the shaft 32 can be effectively centered by the annular seal member 600.

Further, the force applied to the fixing member 830 in the axial direction, which will be described later, can be reduced, and the number of the fixing members 830 can be reduced.

When water pressure is applied, a force is applied in the direction in which the partition wall main body 61 is pushed up, and the drive portion 70 is pushed up. As a result, the fixing member 830 is pushed up. However, in the present embodiment, the annular seal member 600 is in a taut state due to the annular seal, and the partition wall portion main body 61 is difficult to move due to sliding resistance. Therefore, the force applied to the fixing member 830 in the axial direction can be reduced.

<2-2-1>
An axial gap SAx is formed between the annular seal member 600 and the housing body 21 in the axial direction.

Therefore, the annular seal member 600 can be more effectively compressed in the radial direction between the housing opening 210 and the partition wall 60.

When the axial clearance SAx is small, the annular seal member 600 becomes vertically long. In this case, a force is generated in the axial direction of the annular seal member 600. In order to prevent this, it is necessary to generate a force only in the radial direction of the annular seal member 600. As a relation to this, in the present embodiment, the cross-sectional area of the annular seal member 600 / the cross-sectional area of the axial gap SAx is set to be <1 in the cross section of the annular seal member 600 in a plane including the axis.

<2-3>
The valve device 10 further includes a fixing member 830 capable of fixing the housing body 21 and the drive unit cover 80 in a state where the partition wall portion 60 is sandwiched between the housing body 21 and the drive unit cover 80.

Therefore, the position of the partition wall portion 60 is stable, and the axial accuracy of the valve body 31 can be improved.

In the present embodiment, the end portion of the shaft 32 opposite to the drive portion 70 is a sliding bearing (see FIG. 3). When the shaft accuracy deteriorates, the sliding resistance increases. On the other hand, the valve seal 36 is pressed against the valve body 31 by the spring 372, but if the shaft accuracy is good, the force for pressing the valve seal 36 by the spring 372 can be reduced. Further, if the shaft is displaced, cooling water leaks between the valve body 31 and the valve seal 36, which may slow down warm-up and deteriorate fuel efficiency. However, good shaft accuracy prevents such a problem. be able to.

Further, the partition wall portion 60 and the drive portion cover 80 can be assembled to the housing main body 21 at once, and the assembly can be simplified. Moreover, the number of fixing members can be reduced.

The fixing member 830 is, for example, a screw, passes through the cover fastening hole 831 formed in the drive unit cover 80, and is screwed into the fastening hole of the housing body 21. As a result, the drive unit cover 80 is fixed to the housing body 21 with the partition wall 60 sandwiched between the drive unit cover 80 and the housing body 21. A plurality of cover fastening holes are formed in the drive unit cover 80, and a fixing member 830 is inserted into each of the cover fastening holes. A rubber annular cover seal member 809 is provided between the outer edge portion of the drive portion cover 80 and the partition wall portion 60. As a result, the drive unit space 800 is kept airtight and liquidtight.

<2-4>
As shown in FIG. 11, the partition wall portion 60 has a shaft insertion hole 62 through which one end of the shaft 32 can be inserted. The valve device 10 includes a metal ring 601 insert-molded in the partition wall 60 in the shaft insertion hole 62. The metal ring 601 is formed in an annular shape by metal, and is provided coaxially with the shaft insertion hole 62. The valve device 10 is provided inside the metal ring 601 and includes a bearing portion 602 bearing one end of the shaft 32. The bearing portion 602 is, for example, a ball bearing, and is press-fitted inside the metal ring 601.

Therefore, it is possible to suppress that the bearing portion 602 cannot be held due to the linear expansion difference between the resin (partition wall portion 60) and the metal (bearing portion 602) and the deterioration of the resin, and the bearing accuracy of the shaft 32 can be maintained.

<2-5>
As shown in FIG. 12, the partition wall portion 60 has a partition wall recess 64 recessed from the surface 609 on the drive unit cover 80 side to the side opposite to the drive unit cover 80 on the radial outer side of the metal ring 601. Here, the surface 609 is a planar portion formed on the same plane as the end surface of the metal ring 601 on the drive portion cover 80 side of the partition wall portion 60 on the drive portion cover 80 side.

FIG. 11 is a diagram showing a cross section of the “plane including the rotation axis Axr1”. FIG. 12 is a diagram showing a cross section of the "plane including the rotation axis Axr1 and perpendicular to the axis Axm1 of the motor 71". FIG. 13 is a diagram showing a cross section of the “plane including the axis Axm1 of the motor 71 and parallel to the rotation axis Axr1”. FIG. 14 is a diagram showing a cross section of the "plane including the rotation axis Axr1 and parallel to the axis Axm1 of the motor 71".

Therefore, it is possible to suppress sink marks and warpage during integral molding of the partition wall portion 60, and deformation due to press fitting of the bearing portion 602. As a result, the dimensional accuracy of the outer peripheral portion of the partition wall portion 60 can be improved, and the axial accuracy of the valve body 31 can be improved.

<2-6>
As shown in FIG. 12, the drive unit 70 has a motor 71 capable of rotationally driving the shaft 32.

<2-7>
As shown in FIGS. 12 and 13, the valve device 10 further includes an elastic member 74 provided in a compressed state between the motor 71 and the partition wall portion 60. The elastic member 74 is formed of, for example, rubber or the like.

Therefore, due to the damper effect of the elastic member 74, the vibration acting on the motor 71 can be damped, contact failure can be suppressed, and the operating state of the motor 71 can be kept good.

The vibration of the motor 71 causes the partition wall portion 60 to move, causing sliding resistance, which may deteriorate fuel efficiency. Further, the vibration of the motor 71 may cause the output of the rotation angle sensor 86, which will be described later, to shift, resulting in deterioration of fuel efficiency. In the present embodiment, the occurrence of the above-mentioned problem can be suppressed by suppressing the vibration of the motor 71 by the elastic member 74.

Further, the assembly of the motor 71 can be simplified and the number of parts can be reduced.

As shown in FIG. 12, the elastic member 74 is provided between the partition wall portion main body 61 and the motor 71, and urges the partition wall portion main body 61 toward the internal space 200 side.

Therefore, the elastic member 74 can prevent the partition wall main body 61 from floating due to the application of the water pressure of the cooling water on the internal space 200 side. As a result, leakage of the cooling water can be prevented, and overheating of the vehicle 1 due to the leakage can be prevented.

<2-8>
As shown in FIGS. 14 and 15, the motor 71 is provided so that the axis Axm1 is orthogonal to the axis Axs1 of the shaft 32. More precisely, the axis Axm1 and the axis Axs1 are orthogonal in a twisting relationship.

Therefore, the degree of freedom in mounting the pipe member 50 can be improved.

Further, the body size of the housing body 21 in the width direction can be reduced, and the valve device 10 can be mounted in a narrow space.

Further, the electric parts around the motor 71 can be kept away from the cooling water (internal space 200), and the concern of short circuit due to water wetting can be reduced.

Further, by keeping the motor 71 away from the cooling water (internal space 200), heat damage to the motor 71 can be suppressed.

<2-9>
As shown in FIGS. 15 and 16, the motor 71 has a motor main body 710, a motor shaft 711, a worm gear 712, a motor side terminal 713, and the like. The motor body 710 is formed in a substantially cylindrical shape, and has a stator, a coil, and a rotor (not shown) inside. The motor shaft 711 is provided integrally with the rotor on the rotation shaft of the rotor, and one end thereof protrudes from the axial end portion of the motor body 710. The driving force of the motor 71 is output from the motor shaft 711. Here, the shaft Axm1 of the motor 71 coincides with the shaft of the motor shaft 711. The motor 71 is provided so that the shaft Axm1 is parallel to the surface 808 of the drive unit cover 80 facing the partition wall portion 60 side (see FIG. 16).

The worm gear 712 is provided at one end of the motor shaft 711 and can rotate integrally with the motor shaft 711. The motor side terminal 713 is formed of, for example, a long plate made of metal. Two motor-side terminals 713 are provided so as to project from the end of the motor body 710 on the opposite side of the worm gear 712 and sandwich the shaft Axm1 of the motor 71 between them. Here, the two motor-side terminals 713 are provided so that the plane directions are parallel to each other. The end of the motor side terminal 713 in the motor body 710 is electrically connected to the coil.

As shown in FIGS. 16 and 17, the valve device 10 further includes a feeding terminal 85. The power feeding terminal 85 is formed of, for example, a U-shaped flat plate made of metal, and is insert-molded into the drive portion cover 80 so that the end portion on the terminal opening 851 side faces the partition wall portion 60 side. Two power feeding terminals 85 are provided so as to sandwich the shaft Axm1 of the motor 71 between them. Here, the two power feeding terminals 85 are provided on the same plane. The two motor-side terminals 713 of the motor 71 are fitted to each of the terminal openings 851 of the two power supply terminals 85 and are electrically connected to the power supply terminal 85.

As shown in FIG. 12, the drive unit cover 80 has a connector unit 84. The connector portion 84 has a terminal 841 inside. The terminal 841 is electrically connected to the power supply terminal 85. A wire harness (not shown) is connected to the connector portion 84. As a result, electric power is supplied from the battery of the vehicle 1 via the wire harness, the terminal 841, the power supply terminal 85, and the motor side terminal 713.

A rotation angle sensor 86 is provided on the rotation axis Axr1 of the drive unit cover 80. The rotation angle sensor 86 is electrically connected to the ECU 8 via the terminal 841 and the wire harness. The rotation angle sensor 86 outputs a signal corresponding to the rotation angle of the shaft 32 to the ECU 8. As a result, the ECU 8 can detect the rotational position of the valve body 31, and can control the operation of the motor 71 according to the rotational position of the valve body 31.

As described above, the valve device 10 is provided on the drive unit cover 80 so that the end on the opening (terminal opening 851) side faces the partition wall 60 side, and the U-shaped power supply terminal 85 through which the current supplied to the motor 71 flows. It is equipped with. The motor 71 has a motor side terminal 713 connected to the opening of the feeding terminal 85 (terminal opening 851) at the end in the axial direction, and the shaft Axm1 is parallel to the surface 808 facing the partition wall portion 60 side of the drive portion cover 80. It is provided so as to be.

Therefore, the motor 71 can be easily assembled to the drive unit cover 80 from one direction. In addition, the number of parts can be reduced.

<2-10>
As shown in FIG. 15, the gear portion 72 has a first gear 721, a second gear 722, and a third gear 723. The first gear 721 is provided so as to mesh with the worm gear 712 of the motor 71. The second gear 722 has an outer diameter larger than that of the first gear 721 and is provided so as to mesh with the first gear 721. The third gear 723 has an outer diameter larger than that of the second gear 722, and is provided at one end of the shaft 32 so as to mesh with the second gear 722. The third gear 723 is provided coaxially with the shaft 32 and can rotate integrally with the shaft 32.

The first gear 721, the second gear 722, and the third gear 723 are provided so that their axes are parallel to the axis Axs1 of the shaft 32, that is, orthogonal to the axis Axm1 of the motor 71. The driving force of the motor 71 is transmitted to the shaft 32 via the worm gear 712, the first gear 721, the second gear 722, and the third gear 723.

As shown in FIGS. 12 and 18, the valve device 10 further includes a holding member 73. The holding member 73 has a snap-fit portion 731 that can be snap-fit-coupled to the drive portion cover 80. The holding member 73 is snap-fitted to the drive unit cover 80 so as to hold the motor 71, the first gear 721 of the gear unit 72, and the second gear 722 with the drive unit cover 80. Here, the elastic member 74 is provided in a compressed state between the motor main body 710 and the holding member 73.

As described above, the drive unit 70 has a gear unit 72 capable of transmitting the drive force of the motor 71 to the shaft 32. Further, the valve device 10 further includes a holding member 73 which has a snap-fit portion 731 that can be snap-fitted to the drive portion cover 80 and holds the motor 71 and the gear portion 72 between the valve device 10 and the drive portion cover 80. ..

Therefore, the motor 71 and the gear portion 72 can be assembled to the partition wall portion 60 side while being held by the drive portion cover 80. In addition, the number of parts can be reduced.

<6-7>
As shown in FIG. 3, the partition wall 60 has a partition wall through hole 65 extending outward from the shaft insertion hole 62 and opening to the outer wall of the partition wall body 61. Further, the housing 20 has a housing through hole 270 that extends outward from the inner wall of the housing opening 210 and opens to the outer wall of the housing main body 21 so as to communicate with the partition wall through hole 65.

Therefore, the cooling water flowing from the internal space 200 through the shaft insertion hole 62 toward the drive unit 70 side can flow to the partition wall through hole 65. Thereby, it is possible to suppress the cooling water of the internal space 200 from flowing to the drive unit 70 side. The cooling water that has flowed into the partition wall through hole 65 is discharged to the outside from the housing through hole 270.

In this embodiment, the housing through hole 270 is open to the mounting surface 201. That is, when the valve device 10 is attached to the engine 2, the housing through hole 270 is covered by the engine 2.

Therefore, the cooling water leaking from the inside of the valve device 10 to the outside via the housing through hole 270 can be trapped at the mounting surface 201. As a result, it is possible to suppress the conspicuous cooling water leakage.

<6-22>
The housing through hole 270 is open on the mounting surface 201 side.

Therefore, it is possible to prevent external water from entering the inside of the valve device 10 via the housing through hole 270 and the partition wall through hole 65.

For the metal member such as the power supply terminal 85 provided in the drive unit space 800, a portion obtained by punching out the plated member with a press is post-plated. As a result, even when the cooling water invades the drive unit space 800, corrosion of the metal member can be suppressed and poor continuity can be suppressed.

The valve device 10 used to control the cooling water of the engine 2 as in the present embodiment is affected by the heat of the cooling water. Therefore, when the thickness of the valve body 31 is non-uniform, the expansion rate varies depending on the wall thickness, so that the entire valve body 31 may be distorted. In particular, in the present embodiment, since the inlet port 220 into which the cooling water flows and a part of the inner peripheral wall of the valve body 31 face each other, the inner peripheral wall of the valve body 31 has a structure that is easily affected by heat.

<3-27>
Therefore, as shown in FIG. 3, the valve body 31 is formed so that at least the facing portion 310, which is a portion of the inner peripheral wall facing the inlet port 220 into which the cooling water flows, is recessed outward. More specifically, the valve body 31 has an outer facing portion 310 which is a portion of the inner peripheral wall facing at least the inlet port 220 into which the cooling water flows via the valve body opening 420 of the ball valve 42. It is formed to be dented.

In this way, if at least the facing portion 310 of the inner peripheral wall of the valve body 31 is recessed and brought close to the uniform thickness, the expansion rate of the entire valve body 31 approaches the uniformness of the valve body 31, and thus the valve body 31 You can prevent it from being distorted.

<3-28>
As shown in FIG. 3, the valve seal 36 abuts on the outer peripheral wall of the valve body 31 corresponding to at least the facing portion 310. More specifically, the valve seal 36 abuts on the outer peripheral wall of the valve body 31 at least on the opposite side of the facing portion 310.

When the valve body 31 is deformed, the sealing property of the valve seal 36 deteriorates and the warming performance and the like deteriorate. However, in the present embodiment, the above configuration prevents the portion of the valve body 31 corresponding to the facing portion 310 from being distorted. Therefore, the sealing property of the valve seal 36 can be ensured, and the warming performance is improved.

<4-6>
The housing 20 has a plurality of ports (221 to 223). When the housing body 21 is attached to the engine 2, the outlet port 222, which is a port connected to the heater 6 of the vehicle 1, is formed so as not to be located at the uppermost position in the vertical direction among the plurality of ports (). See FIG. 8).

Therefore, it is possible to suppress the flow of air in the cooling water to the heater 6, and it is possible to suppress the generation of abnormal noise in the vehicle interior of the vehicle 1.

(Second Embodiment)
FIG. 19 shows a part of the valve device according to the second embodiment.

<2-11>
As shown in FIG. 19, the motor 71 is provided in the drive unit space 800 so that the motor shaft 711 is perpendicular to the mounting surface 201 of the housing 20 and the worm gear 712 faces the side opposite to the mounting surface 201. ing.

As described above, the motor 71 has a motor shaft 711 that outputs a driving force and a worm gear 712 provided at the tip of the motor shaft 711 so that the motor shaft 711 is perpendicular to the mounting surface 201. , The worm gear 712 is provided so as to face the side opposite to the mounting surface 201.

Therefore, the height of the gear can be reduced, and the physique of the drive unit 70 can be reduced.

Further, since the motor body 710 of the motor 71 can be arranged near the engine 2 (mounting surface 201), the vibration resistance of the motor 71 can be improved, the vibration acting on the motor 71 is reduced, and the robustness against disconnection can be improved. ..

Further, by arranging the motor 71 and the gear portion 72 in the drive portion space 800 as shown in FIG. 19, the width of the direction Dv1 perpendicular to the mounting surface 201 of the drive portion 70 and the drive portion cover 80 can be set to the mounting surface 201. It can be smaller than the width of the direction Dp1 parallel to the relative.

More specifically, as shown in FIG. 19, the third gear 723 is arranged radially outside the motor body 710, and the first gear 721 and the second gear 722 are arranged radially outside the worm gear 712. In this way, the drive unit 70 is arranged by arranging the third gear 723 having a large outer diameter near the mounting surface 201 and arranging the first gear 721 and the second gear 722 in an empty space on the radial outer side of the worm gear 712. And the physique of the drive unit cover 80 can be reduced.

(Third Embodiment)
FIG. 20 shows a part of the valve device according to the third embodiment.

<3-1> Spherical valve body In the third embodiment, the arrangement of the ball valves 41, 42, 43, the cylindrical connection portion 44, and the tubular valve connection portion 45 of the valve body 31 on the shaft 32 is the first embodiment. different. As shown in FIG. 20, the ball valve 41, the cylindrical connection portion 44, the ball valve 42, the tubular valve connection portion 45, and the ball valve 43 are located on the side opposite to the drive portion 70 from the drive portion 70 side in the rotation shaft Axr1 direction. They are arranged in this order.

In the present embodiment, the outlet ports 221, 222, and 223 are formed on the housing main body 21 so as to be arranged in this order from the drive unit 70 side in the rotation axis Axr1 direction to the side opposite to the drive unit 70. The ball valves 41, 42, and 43 are provided so that the outlet ports 221, 222, and 223 can be opened and closed, respectively.

In the ball valves 41, 42, 43 of the valve body 31, at least a part of the outer peripheral wall is formed in a spherical shape, and at least a part of the inner peripheral wall is formed so as to be recessed outward.

<3-1>
As described above, the present embodiment is a valve device 10 capable of controlling the cooling water of the engine 2 of the vehicle 1, and includes a housing 20, a valve 30, and a valve seal 36.

The housing 20 has ports (220, 221, 222, 223) that connect the internal space 200 to the outside.

The valve 30 connects the valve body 31 that can rotate around the rotation axis Axr1 in the internal space 200, the valve body flow path 300 formed inside the valve body 31, the valve body flow path 300, and the outside of the valve body 31. It has a valve body opening (410, 420, 430) and a shaft 32 provided on the rotation shaft Axr1, and has a valve body flow path 300 and a port (4, 420, 430) via the valve body opening (410, 420, 430). The communication state with 220, 221, 222, 223) can be changed by the rotation position of the valve body 31.

The valve seal 36 is formed in an annular shape and is provided at a position corresponding to the port (220, 221, 222, 223) so as to be in contact with the outer peripheral wall of the valve body 31, and the valve body opening is performed depending on the rotation position of the valve body 31. A seal opening 360 that can communicate with the portions (410, 420, 430) is formed inside, and can be liquidtightly held between the valve body 31 and the outer peripheral wall.

The valve body 31 is formed so that at least a part of the outer peripheral wall is formed in a spherical shape and at least a part of the inner peripheral wall is recessed outward.

Therefore, the molding accuracy of the spherical surface of the outer peripheral wall of the valve body 31 can be improved. This makes it possible to suppress leakage of cooling water on the outer peripheral wall of the valve body 31.

In addition, the flow path area of the valve body flow path 300 can be increased, and the water flow resistance can be reduced.

<3-2>
At least a part of the inner peripheral wall of the ball valves 41, 42, 43 of the valve body 31 is formed in a spherical shape.

Therefore, at least a part of the valve body 31 can be brought close to the smooth meat. As a result, the accuracy of the spherical surface of the outer peripheral wall of the valve body 31 can be further improved, and the flow path area of the valve body flow path 300 can be further increased.

<3-3>
The ball valves 41, 42, and 43 of the valve body 31 have the same distance between the inner peripheral wall and the outer peripheral wall in at least a part of the rotation axis Axr1 direction and the circumferential direction. That is, the valve body 31 is formed so that the wall thickness is uniform (uniform wall) at least in the above range.

Therefore, at least a part of the valve body 31 can be made uniform. As a result, the accuracy of the spherical surface of the outer peripheral wall of the valve body 31 can be further improved, and the flow path area of the valve body flow path 300 can be further increased.

<3-4>
The ball valves 41, 42, and 43 of the valve body 31 have the same distance between the inner peripheral wall and the outer peripheral wall in a range corresponding to at least the seal opening 360 in the rotation axis Axr1 direction and the circumferential direction.

Therefore, the valve body 31 can be made uniform in the above range. As a result, the accuracy of the spherical surface of the outer peripheral wall of the valve body 31 can be further improved, and the sealing property of the valve seal 36 can be improved.

<3-4-1>
The ball valves 41, 42, and 43 of the valve body 31 are at least the seal openings 360 in the rotation axis Axr1 direction and the circumferential direction when all of the seal openings 360 are closed by the outer peripheral wall of the valve body 31. The distance between the inner peripheral wall and the outer peripheral wall is the same in the range corresponding to.

The "range corresponding to the seal opening 360" means a range that overlaps with the projection of the seal opening 360 in the axial direction of the valve seal 36.

Therefore, the sealing property of the valve seal 36 in the fully closed state can be further improved.

<3-5>
The shaft 32 is integrally formed with the valve body 31 by insert molding.

Therefore, the controllability of the valve body 31 can be improved.

Further, the man-hours for assembling the shaft 32 can be reduced.

<3-6>
The valve body 31 has a first divided body 33 and a second divided body 34 divided into two by a virtual plane Vp1 including a rotation axis Axr1, and the first divided body 33 and the second divided body 34, respectively. It is joined by the joining surfaces 331 and 341 of.

Therefore, the valve body 31 can be manufactured with high accuracy by the die slide injection (DSI) described later.

<3-7>
As shown in FIGS. 20 and 23, the first divided body 33 has a first regulated convex portion 332 that extends from the surface on the partition wall portion 60 side toward the regulated recess 63 side and the tip portion thereof is located in the regulated recess 63. (See FIGS. 3 and 6 for the regulation recess 63). The second divided body 34 has a second regulated convex portion 342 that extends from the surface on the partition wall portion 60 side toward the regulated concave portion 63 and has a tip portion located in the regulated concave portion 63.

Therefore, the rotation of the valve body 31 can be regulated by the first regulation convex portion 332 and the second regulation convex portion 342 coming into contact with the regulation portion 631 of the regulation recess 63. Here, since the first regulated convex portion 332 and the second regulated convex portion 342 are formed on the first divided body 33 and the second divided body 34, respectively, the first regulated convex portion 332 and the second regulated convex portion 332 are formed. When the 342 comes into contact with the regulation portion 631 of the regulation recess 63, it is possible to prevent the first division body 33 and the second division body 34 from separating (peeling) at the joint surfaces 331 and 341.

As shown in FIGS. 23, 25 and the like, the first regulation convex portion 332 and the second regulation convex portion 342 are located radially outward with respect to the radial center of the first outermost end surface 301. As a result, the size of the first regulated convex portion 332 and the second regulated convex portion 342 in the circumferential direction can be increased, so that the strength of the first regulated convex portion 332 and the second regulated convex portion 342 can be increased.

As shown in FIG. 6, the regulation surfaces 635 and 636 are formed on the peripheral end faces of the regulation recess 63 of the regulation portion 631. A convex regulation surface 333 that can abut on the regulation surface 635 is formed on the peripheral end surface of the valve body 31 of the first regulation convex portion 332. A convex regulation surface 343 that can abut on the regulation surface 636 is formed on the peripheral end surface of the valve body 31 of the second regulation convex portion 342. The rotation of the valve body 31 is restricted when the convex regulation surface 333 abuts on the regulation surface 635 or when the convex regulation surface 343 abuts on the regulation surface 636.

As shown in FIGS. 23, 25, etc., the corner portions of the first regulated convex portion 332 and the second regulated convex portion 342 on the opposite side of the first outermost end surface 301 are inclined with respect to the first outermost end surface 301. It is chamfered. Therefore, even if there is a foreign substance such as sand in the vicinity of the first regulated convex portion 332 and the second regulated convex portion 342 of the regulated concave portion 63, the corners of the first regulated convex portion 332 and the second regulated convex portion 342 are regulated. It is possible to prevent foreign matter from getting caught between the recess 63 and the recess 63.

<3-8>
The first regulation convex portion 332 extends toward the regulation recess 63 side along the joint surface 331. The second regulation convex portion 342 extends toward the regulation recess 63 side along the joint surface 331 while being in contact with the first regulation convex portion 332.

Therefore, when the first regulation convex portion 332 and the second regulation convex portion 342 come into contact with the regulation portion 631 of the regulation recess 63, the first division body 33 and the second division body 34 are separated from each other at the joint surfaces 331 and 341. Can be suppressed more effectively.

<3-9>
As shown in FIGS. 20, 21, and 22, the valve body 31 has a valve body opening rib 411 connecting the inner edge ends of the valve body opening 410. The valve body 31 has valve body opening ribs 421 and 422 connecting the inner edge ends of the valve body opening 420. The valve body 31 has valve body opening ribs 431 and 432 connecting the inner edge ends of the valve body opening 430. Therefore, the strength of the valve body openings 410, 420, 430 can be improved.

The valve body opening ribs 411, 421, and 431 are formed on a virtual plane including the axis Axs1 (rotation axis Axr1) of the shaft 32, that is, a virtual plane Vp1 including the joint surfaces 331 and 341. That is, the valve body opening ribs 411, 421, and 431 are formed so as to sandwich the joint surfaces 331 and 341. The valve body opening ribs 422 and 432 are formed on a virtual plane including the axis Axs1 (rotation axis Axr1) of the shaft 32 and orthogonal to the virtual plane Vp1.

As shown in FIGS. 24 and 25, the valve body opening rib 411 is formed at a position radially inward from the virtual spherical surface Vs1 along the outer peripheral wall of the ball valve 41 of the valve body 31.

The virtual spherical surface Vs1 is a virtual spherical surface including the outer peripheral wall of the ball valve 41.

Therefore, it is possible to prevent the valve seal 36 from being caught by the valve body opening rib 411 and increasing the sliding resistance when the valve body 31 is rotated.

<3-9-1>
As shown in FIGS. 24 and 25, the valve body opening rib 411 is formed in an arc shape with a predetermined distance from the virtual spherical surface Vs1. The valve body opening ribs 421 and 422 and the valve body opening ribs 431 and 432 are also formed in an arc shape with a predetermined distance from the virtual spherical surface along the outer peripheral wall of the ball valves 42 and 43.

Therefore, an increase in sliding resistance during rotation of the valve body 31 can be suppressed, and the flow path area inside the valve body opening ribs 411, 421, 422, 431, and 432 can be increased.

As shown in FIG. 24, the valve body opening rib 411 is formed in the shape of an arcuate flat plate. The rib outer edge portion 401, which is a portion on the radial outer side of the valve body opening rib 411, has a constant distance from the virtual spherical surface Vs1. The rib inner edge portion 402, which is a portion on the inner side in the radial direction of the valve body opening rib 411, has a constant distance from the virtual spherical surface Vs1. The rib end portion 403, which is one end of the valve body opening rib 411, is connected to a portion of the inner edge end of the valve body opening 410 on the side opposite to the cylindrical connection portion 44. The rib end portion 404, which is the other end of the valve body opening rib 411, is connected to a portion of the inner edge end of the valve body opening 410 on the cylindrical connection portion 44 side.

<3-11>
As shown in FIG. 26, the joint surfaces 331 and 341 are separated from the valve seal 36 when all of the seal openings 360 of all the valve seals 36 are closed by the outer peripheral wall of the valve body 31. In position.

Therefore, due to the step that can be formed on the outer peripheral wall at the joint surfaces 331 and 341 of the valve body 31, the cooling water leaks from between the valve seal 36 and the outer peripheral wall of the valve body 31 when the valve body 31 is in the fully closed state. Can be suppressed.

<3-12>
As shown in FIG. 20, the valve body 31 has a specific shape portion 441 formed on the joint surfaces 331 and 341 in the tubular connection portion 44 and having an outer wall having a different curvature and curvature of the outer peripheral wall of the tubular connection portion 44. is doing. The valve body 31 has a specific shape portion 451 formed on the joint surfaces 331 and 341 in the tubular valve connecting portion 45 and having an outer wall having a different curvature and curvature of the outer peripheral wall of the tubular valve connecting portion 45.

Therefore, when the valve body 31 rotates, the specific shaped portions 441 and 451 do not slide with the valve seal 36, so that malfunction of the valve body 31 can be suppressed and wear of the valve seal 36 can be suppressed.

<3-12-1>
The outer walls of the specific shape portions 441 and 451 are formed so as to project outward from the outer peripheral walls of the cylindrical connection portion 44 and the tubular valve connection portion 45, respectively.

<3-12-2>
The outer walls of the specific shape portions 441 and 451 may be formed so as to be recessed inward from the outer peripheral walls of the cylindrical connection portion 44 and the tubular valve connection portion 45, respectively.

<3-12-3>
The outer walls of the specific shape portions 441 and 451 may be formed in a plane shape, respectively.

As shown in FIG. 20, the length of the specific shape portion 441 in the axis Ax1 direction of the shaft 32 is about 1/10 of the length of the cylindrical connection portion 44. The length of the specific shape portion 451 in the axis Ax1 direction of the shaft 32 is about 1/3 of the length of the cylindrical valve connecting portion 45. Therefore, it is possible to suppress the increase in size of the valve body 31.

<3-13>
As shown in FIG. 22, the valve body 31 has a valve intervalve space 400 formed between the ball valve 41 and the ball valve 42 on the radial outer side of the tubular connection portion 44, and a valve body flow path 300 of the ball valve 41. The end face opening 415 formed on the end face of the rotation axis Axr1 direction of the ball valve 41 and the rotation of the ball valve 42 so as to connect the inter-valve space 400 and the valve body flow path 300 of the ball valve 42. It has an end face opening 425 formed on the end face in the axis Axr1 direction. Here, the end face openings 415 and 425 correspond to the "first end face opening" and the "second end face opening", respectively.

The inlet port 220 (see FIG. 3) communicates with the inter-valve space 400. Therefore, the cooling water that has flowed into the internal space 200 from the inlet port 220 can flow into the valve body flow path 300 via the inter-valve space 400 and the end face openings 415 and 425.

The space between valves 400 is open over the entire circumferential direction. Therefore, the resistance of the cooling water flowing from the inlet port 220 into the internal space 200 and toward the valve body flow path 300 can be reduced.

As shown in FIG. 9, the inter-valve space 400 overlaps the inlet port 220 and the relief port 224 in the direction of the rotation axis Axr1. Therefore, the cooling water flowing in from the inlet port 220 can easily flow to the relief port 224, and the reactivity of the relief valve 39 can be improved.

As shown in FIG. 20, the valve-to-valve space 400 is a cylindrical connection portion having the smallest outer diameter among the portions from the first outermost end surface 301 to the second outermost end surface 302 in the axial direction of the valve body 31. It is formed on the radial outer side of 44. Further, the outer diameter of the space between valves 400 is smaller than the diameter on the outer side in the radial direction of the end face openings 415 and 425.

<3-14>
As shown in FIG. 27, the shaft 32 is integrally formed with the valve body 31 by insert molding in the cylindrical connection portion 44. That is, the shaft 32 is welded to the tubular connection portion 44, but is not welded to a portion other than the tubular connection portion 44 of the valve body 31.

When the insert molding portion with the shaft 32 is provided in the valve body flow path 300, the flow path area of the valve body flow path 300 may become small and the water flow resistance may increase. Since the cylindrical connection portion 44 outside the 300 is provided with an insert molding portion with the shaft 32, the water flow resistance can be reduced.

<3-15>
As shown in FIG. 27, the shaft 32 has a detent portion 321 that can regulate relative rotation with the tubular connecting portion 44. The detent portion 321 is formed so that the cross-sectional shape is polygonal. In the present embodiment, the cross-sectional shape is formed to be hexagonal. Here, the detent portion 321 is formed, for example, by cutting the outer peripheral wall of the columnar shaft 32 in a planar shape at six locations in the circumferential direction. Therefore, the outer wall of the detent portion 321 is located radially inward with respect to the outer peripheral wall of the shaft 32. The inner wall of the tubular connecting portion 44 is formed so that the cross-sectional shape is hexagonal so as to correspond to the shape of the detent portion 321.

Therefore, the relative rotation between the valve body 31 and the shaft 32 can be regulated with a simple configuration.

<3-16>
As shown in FIG. 28, the valve body 31 is connected to the ball valve 42 on the side opposite to the tubular connection portion 44 with respect to the ball valve 42, and the outer peripheral wall and the inner peripheral wall are formed in a tubular shape, and the inner flow path inside the valve is formed. The tubular valve connecting portion 45 forming the 300 and the ball valve 43 having a spherical outer wall formed by connecting to the tubular valve connecting portion 45 on the side opposite to the ball valve 42 with respect to the tubular valve connecting portion 45. have.

The outer peripheral wall and the inner peripheral wall of the tubular valve connecting portion 45 are formed in a cylindrical shape. Therefore, it is possible to secure the flow path area of the inner valve body flow path 300.

<3-17>
As shown in FIG. 20, the outer diameter of the outer peripheral wall of the ball valve 41 is the same as the outer diameter of the outer peripheral wall of the ball valve 43. The outer diameter of the outer peripheral wall of the ball valve 42 is also the same as the outer diameter of the outer peripheral wall of the ball valve 41 and the outer diameter of the outer peripheral wall of the ball valve 43.

The area of the first outermost end surface 301, which is the end surface of the ball valve 41 opposite to the ball valve 43 in the rotation axis Axr1 direction, is the end surface of the ball valve 43 opposite to the ball valve 41 in the rotation axis Axr1 direction. It is different from the area of the second outermost end surface 302. Here, the area of the second outermost end surface 302 is larger than the area of the first outermost end surface 301. Therefore, the length of the ball valve 43 in the direction of the rotation axis Axr1 is shorter than the length of the ball valve 41.

Therefore, the size of the valve body 31 in the axial direction can be reduced, and the physique of the valve device 10 can be reduced.

<3-18>
As shown in FIGS. 20 and 22, the valve body 31 has a valve body opening rib 422 connecting the inner edge end of the valve body opening 420 of the ball valve 42 and the inner edge end of the valve body opening 430 of the ball valve 43. It has a valve body opening rib 432 to connect to. Here, the valve body opening rib 422 and the valve body opening rib 432 correspond to the "second valve body opening rib" and the "third valve body opening rib", respectively.

The valve body opening rib 422 and the valve body opening rib 432 are formed at the same position in the circumferential direction of the valve body 31. That is, the valve body opening ribs 422 and 432 are formed so as to line up in a direction parallel to the rotation axis Axr1. The valve body opening rib 411 and the valve body opening rib 421 are formed at the same position in the circumferential direction of the valve body 31.

Therefore, it is possible to suppress the disturbance of the cooling water flowing around the valve body opening ribs 422 and 432, and it is possible to reduce the water flow resistance.

<3-19>
As shown in FIGS. 20, 21, and 22, the valve body 31 has end face opening ribs 416 and 417 and an end face that connect the cylindrical connection portion 44 and the ball valve 41 so as to straddle the end face opening 415. It has end face opening ribs 426 and 427 that connect the cylindrical connection portion 44 and the ball valve 42 so as to straddle the opening portion 425. Here, the end face opening ribs 416 and 417 correspond to the "first end face opening rib", and the end face opening ribs 426 and 427 correspond to the "second end face opening rib".

Two end face opening ribs 416 and 426 are formed so as to sandwich a cylindrical connecting portion 44 between them. Two end face opening ribs 417 and 427 are formed so as to sandwich a cylindrical connecting portion 44 between them.

The end face opening ribs 416 and 426 are formed on the virtual plane Vp1. That is, the end face opening ribs 416 and 426 are formed so as to sandwich the joint surfaces 331 and 341. Therefore, the valve body opening ribs 411 and 421 and the end face opening ribs 416 and 426 are formed at the same positions in the circumferential direction of the valve body 31.

As shown in FIG. 21, the starting position of the end face opening ribs 426 and 427 is the outer edge portion of the end face of the ball valve 42 on the ball valve 41 side. The end position of the end face opening ribs 426 and 427 is the outer peripheral wall of the end portion of the cylindrical connection portion 44 on the ball valve 42 side.

As shown in FIG. 21, the most radially outwardly bulging portion of the valve body opening rib 421 protrudes outside the outer peripheral wall of the ball valve 42 at the start position of the end face opening rib 426. The valve body opening rib 411 is provided radially outside the straight portion of the end face opening rib 426.

As shown in FIG. 21, the end face opening rib 426 has a linear side on the valve body flow path 300 side in the rotation axis Axr1 direction. The end face opening rib 426 is formed so that the side of the valve-to-valve space 400 side in the direction of the rotation axis Axr1 is curved on the radial outside of the ball valve 42 and linear on the radial inside.

As shown in FIG. 28, the end face opening rib 427 is formed with a linear side on the valve body flow path 300 side in the rotation axis Axr1 direction. The end face opening rib 427 is formed so that the side of the space 400 side between the valves in the direction of the rotation axis Axr1 is curved on the radial outside of the ball valve 42 and is inclined with respect to the rotation axis Axr1 on the radial inside. Has been done.

<3-19-1>
As shown in FIGS. 20 and 22, the end face opening rib 417, the end face opening rib 427, the valve body opening rib 422, and the valve body opening rib 432 are formed at the same position in the circumferential direction of the valve body 31. That is, the end face opening ribs 417 and 427 and the valve body opening ribs 422 and 432 are formed so as to be aligned in a direction parallel to the rotation axis Axr1. The end face opening ribs 417 and 427 and the valve body opening ribs 422 and 432 are formed on a virtual plane orthogonal to the virtual plane Vp1 including the axis Axs1 (rotation axis Axr1) of the shaft 32.

Therefore, it is possible to suppress the disturbance of the cooling water flowing around the end face opening ribs 417 and 427 and the valve body opening ribs 422 and 432, and it is possible to reduce the water flow resistance.

<3-20>
As shown in FIGS. 20, 21, and 22, the end face opening ribs 416 and 417 form a rib end face gap 418 with the valve end face 419, which is the end face of the ball valve 41 in the rotation axis Axr1 direction. The end face opening ribs 426 and 427 form a rib end face gap 428 with the valve end face 429, which is the end face of the ball valve 42 in the rotation axis Axr1 direction. Here, the rib end face gap 418 corresponds to the "first rib end face gap", and the rib end face gap 428 corresponds to the "second rib end face gap".

As shown in FIGS. 20 and 21, when viewed from a direction perpendicular to the rotation axis Axr1, a rib end face gap 428 is formed between the end face opening ribs 426 and 427 and the end face of the ball valve 42 in the rotation axis Axr1 direction. It can be visually checked.

Therefore, the water flow resistance at the end face openings 415 and 425 can be reduced.

<3-21>
As shown in FIGS. 20 and 22, the end face opening rib 417 is formed so that the surface on the ball valve 42 side is inclined with respect to the rotation axis Axr1. The end face opening rib 427 is formed so that the surface on the ball valve 41 side is inclined with respect to the rotation axis Axr1.

Therefore, the water flow resistance around the end face opening ribs 417 and 427 can be reduced.

Next, a method of manufacturing the valve 30 will be described. In this embodiment, the valve 30 is manufactured by using so-called die slide injection (DSI).

As shown in FIG. 29, the mold device 100 includes a first type 110, a second type 120, and the like. The first type 110 has a first outer type 111 and a first inner type 112. The second type 120 has a second outer type 121 and a second inner type 122.

The first outer mold 111 has a first concave surface 113 that is recessed in a hemispherical shape from the end face on the side of the first inner mold 112. The first concave surface 113 is formed so as to correspond to the shape of the outer peripheral wall of the ball valves 41, 42, 43 among the outer peripheral walls of the first divided body 33.

The first inner mold 112 has a first convex surface 114 that protrudes in a hemispherical shape from the end face on the side of the first outer mold 111. The first convex surface 114 is formed so as to correspond to the shape of the inner peripheral wall of the ball valves 41, 42, 43 in the outer peripheral wall of the first divided body 33. Here, when the first outer mold 111 and the first inner mold 112 are in contact with each other, the first concave surface 113 and the first convex surface 114 are in at least a part of the rotation axis Axr1 direction and the circumferential direction of the valve body 31. The distance to and is set to be the same.

The second outer mold 121 has a second concave surface 123 that is recessed in a hemispherical shape from the end surface on the side of the second inner mold 122. The second concave surface 123 is formed so as to correspond to the shape of the outer peripheral wall of the ball valves 41, 42, 43 among the outer peripheral walls of the second divided body 34.

The second inner mold 122 has a second convex surface 124 that protrudes in a hemispherical shape from the end face on the side of the second outer mold 121. The second convex surface 124 is formed so as to correspond to the shape of the inner peripheral wall of the ball valves 41, 42, 43 in the outer peripheral wall of the second divided body 34. Here, when the second outer mold 121 and the second inner mold 122 are in contact with each other, the second concave surface 123 and the second convex surface 124 are in at least a part of the rotation axis Axr1 direction and the circumferential direction of the valve body 31. The distance to and is set to be the same.

The method for manufacturing the valve 30 includes the following steps.

<3-22> Spherical valve body manufacturing method (primary molding process)
In the primary molding step, the first divided body 33 and the second divided body 34 are resin-molded by the first mold 110 and the second mold 120, respectively. Specifically, as shown in FIG. 29 (A), the first outer mold 111 and the first inner mold 112 are brought into contact with each other, and the second outer mold 121 and the second inner mold 122 are brought into contact with each other. The molten resin is injected between the first concave surface 113 and the first convex surface 114, and between the second concave surface 123 and the second convex surface 171.

As shown in FIG. 30, the resin injected from the injection unit 130 of the mold device 100 flows to the first mold 110 and the second mold 120 via the spool 131, the runner 132, the gates 133, and 134. When the first divided body 33 and the second divided body 34 are cooled and solidified, the primary molding step is completed.

<3-22-1>
When the first divided body 33 and the second divided body 34 are resin-molded in the primary forming step, the distance between the first concave surface 113 and the first convex surface 114 in at least a part of the rotation axis Axr1 direction and the circumferential direction. , And the distance between the second concave surface 123 and the second convex surface 124 is the same.

Therefore, at least a part of the valve body 31 can be made uniform. As a result, the accuracy of the spherical surface of the outer peripheral wall of the valve body 31 can be further improved, and the flow path area of the valve body flow path 300 can be further increased.

<3-23>
(Slide process)
In the slide step after the primary molding step, the first split body 33 or the second split body 34 is first placed so that the joint surfaces 331 and 341 of the first split body 33 and the second split body 34 face each other. Slide the mold 110 or the second mold 120 together. Specifically, as shown in FIG. 29 (B), the first inner mold 112 is removed from the first outer mold 111, the second inner mold 122 is removed from the second outer mold 121, and the first divided body 33 is used. The first divided body 33 is slid together with the first outer mold 111 so that the joint surfaces 331 and 341 with the second divided body 34 face each other.

The valve 30 can be efficiently manufactured by the slide process.

<3-24>
(Shaft placement process)
In the shaft arrangement step after the slide step, the shaft 32 is arranged on the rotation shaft Axr1 of the valve body 31. Specifically, as shown in FIG. 29 (C), the shaft 32 is arranged on the rotation axis Axr1 between the first divided body 33 and the second divided body 34.

Therefore, the man-hours for assembling the shaft 32 and the like can be reduced as compared with the case where the shaft 32 is assembled after the valve body 31 is molded.

<3-22>
(Secondary molding process)
In the secondary molding step after the shaft placement step, resin is injected between the welded portion on the joint surface of the first split body 33 and the welded portion on the joint surface of the second split body 34 to form the first split body 33. Welding with the second split body 34.

As shown in FIG. 31, the second divided body 34 after the primary molding step is formed with welded portions 311 and 312, 313 on the joint surface 341. The welded portion 311 is formed in a groove shape so as to be recessed from the joint surface 341 of the portion corresponding to the ball valve 41 of the second split body 34. The welded portion 312 is formed in a groove shape so as to be recessed from the joint surface 341 of the portion corresponding to the tubular connecting portion 44 of the second split body 34. The welded portion 313 is formed in a groove shape so as to be recessed from the joint surface 341 of the portion corresponding to the ball valve 42, the tubular valve connecting portion 45, and the ball valve 43 of the second split body 34. Similar to the second divided body 34, the first divided body 33 is also formed with welded portions 311 and 312, 313.

The gate inlet 141 of the mold device 100 is arranged at one end of the welded portion 311 and the gate outlet 145 is arranged at the other end of the welded portion 311. The gate inlet 142 of the mold device 100 is arranged at one end of the welded portion 312, and the gate outlet 146 is arranged at the other end of the welded portion 312. The gate inlet 143 of the mold device 100 is arranged in the center of the welded portion 313, and the gate outlets 147 are arranged at both ends of the welded portion 313. Here, the gate inlet 142 and the gate outlet 146 are arranged at the center of the cylindrical connection portion 44 in the axial direction. Further, the gate inlet 143 is arranged at the center of the cylindrical valve connecting portion 45 in the axial direction. The gate inlet 141 is arranged on the first outermost end surface 301 of the ball valve 41. The gate outlet 145 is arranged on the end surface of the ball valve 41 opposite to the first outermost end surface 301. The gate outlet 147 is arranged on the second outermost end surface 302 of the ball valve 43 and the end surface of the ball valve 42 on the ball valve 41 side.

As shown in FIG. 32, in the secondary molding step, the molten resin is injected from the injection portion 140 of the mold device 100 to the welded portions 311 and 312, 313 via the gate inlets 141, 142 and 143. The resin flowing from the gate inlets 141, 142, and 143 to the welded portions 311, 312, and 313 flows toward the gate outlets 145, 146, and 147, and flows out from the gate outlets 145, 146, and 147, respectively. When the resin in the welded portions 311, 312, and 313 cools and hardens, the first divided body 33, the second divided body 34, and the shaft 32 are welded, and the secondary molding step is completed. Here, the resin remaining at the positions corresponding to the gate inlet 142 and the gate outlet 146 of the tubular connection portion 44 of the valve body 31 forms the specific shape portion 441. Further, the resin remaining at the position corresponding to the gate inlet 143 of the tubular valve connecting portion 45 of the valve body 31 forms the specific shape portion 451.

<3-22>
As described above, the present embodiment is a method for manufacturing a valve 30 having a valve body 31 rotatable around the rotation axis Axr1 and a valve body flow path 300 formed inside the valve body 31. It includes a next molding step and a second molding step.

The valve body 31 is formed so that at least a part of the outer peripheral wall is formed in a spherical shape and at least a part of the inner peripheral wall is recessed outward, and the valve body 31 is divided into two by a virtual plane Vp1 including a rotation axis Axr1. It has a body 33 and a second divided body 34, and the first divided body 33 and the second divided body 34 are joined by the joining surfaces 331 and 341, respectively.

In the primary molding step, the first divided body 33 and the second divided body 34 are resin-molded by the first mold 110 and the second mold 120, respectively.

In the second molding step, the resin is formed between the welded portion (311, 312, 313) on the joint surface 331 of the first divided body 33 and the welded portion (311, 312, 313) on the joint surface 341 of the second divided body 34. Is injected, and the first divided body 33 and the second divided body 34 are welded.

By manufacturing the valve 30 by the above manufacturing method, the molding accuracy of the spherical surface of the outer peripheral wall of the valve body 31 can be improved. This makes it possible to suppress leakage of cooling water on the outer peripheral wall of the valve body 31.

In addition, the flow path area of the valve body flow path 300 can be increased, and the water flow resistance can be reduced.

As described above, in this embodiment, the valve 30 is manufactured by die slide injection (DSI). In DSI molding, the valve body 31 is separated into two. Therefore, the numerical aperture of the valve body 31 and the like can be changed without increasing the die cutting direction as compared with the case of the normal manufacturing method of die cutting in the axial direction of the valve body 31. As a result, it is possible to deal with complicated flow diagrams. When the valve body 31 is integrally formed, the number of molds to be pulled out increases as the numerical aperture increases.

In DSI molding, since the die cutting direction is the radial direction of the valve body 31, the mold is changed by rubbing against the surface of the product as compared with the case of the normal manufacturing method of die cutting in the axial direction of the valve body 31. It can be prevented from being lost. In addition, since the surface of the product can be prevented from being deformed, the sealing performance is improved.

(Fourth Embodiment)
FIG. 33 shows a part of the valve device according to the fourth embodiment.

<3-10>
As shown in FIG. 33, the valve body opening rib 411 is formed linearly with a predetermined distance from the virtual spherical surface Vs1. The valve body opening ribs 421 and 422 and the valve body opening ribs 431 and 432 are also formed linearly with a predetermined distance from the virtual spherical surface along the outer peripheral walls of the ball valves 42 and 43.

Therefore, when the valve body 31 is rotated, the valve seal 36 can be more effectively suppressed from being caught by the valve body opening rib 411 and increasing the sliding resistance.

As shown in FIG. 33, the valve body opening rib 411 is formed in a linear flat plate shape. The rib outer edge portion 401, which is a portion radially outer of the valve body opening rib 411, is formed linearly so as to be parallel to the rotation axis Axr1, and the distance from the virtual spherical surface Vs1 changes in the rotation axis Axr1 direction. The rib inner edge portion 402, which is a radially inner portion of the valve body opening rib 411, is formed linearly so as to be parallel to the rotation axis Axr1, and the distance from the virtual spherical surface Vs1 changes in the rotation axis Axr1 direction. The rib end portion 403, which is one end of the valve body opening rib 411, is connected to a portion of the inner edge end of the valve body opening 410 on the side opposite to the cylindrical connection portion 44. The rib end portion 404, which is the other end of the valve body opening rib 411, is connected to a portion of the inner edge end of the valve body opening 410 on the cylindrical connection portion 44 side.

As shown in FIG. 33, the valve body opening rib 411 is located radially outside the ball valve 41 with respect to the second regulation convex portion 342.

(Fifth Embodiment)
FIG. 34 shows a part of the valve device according to the fifth embodiment.

The valve body 31 of the valve 30 has a ball valve 46. The shaft 32 is provided on the rotation shaft Axr1 of the valve body 31. The ball valve 46 has an outer peripheral wall 461 and an inner peripheral wall 462. The outer peripheral wall 461 is formed in a spherical shape so as to bulge outward in the radial direction of the ball valve 46. The inner peripheral wall 462 is formed in a spherical shape so as to be recessed outward in the radial direction of the ball valve 46. Here, the valve body 31 has the same distance between the outer peripheral wall 461 and the inner peripheral wall 462 in at least a part of the rotation axis Axr1 direction and the circumferential direction. That is, the valve body 31 is formed so that the wall thickness is uniform (uniform wall) at least in the above range.

Next, a method of manufacturing the valve 30 will be described.

As shown in FIG. 35, the mold device 150 includes an upper base 151, a lower base 152, an upper support pillar 153, a lower support pillar 154, a mold drive body 155, a first inner mold 160, a second inner mold 170, and an outer mold 180. Etc. are provided.

The upper base 151 is formed in a plate shape. The lower base 152 is formed in a plate shape and is provided so as to be parallel to the upper base 151. The upper support pillar 153 is formed in a rod shape, and one end thereof is connected to the side opposite to the lower base 152 of the upper base 151. Eight upper support columns 153 are provided so that one end thereof forms an annular shape around the central axis CAx1 of the mold device 150 in the upper base 151 (see FIG. 36). The upper support column 153 can swing toward the central axis CAx1 side with one end as a fulcrum and the other end side.

The lower support pillar 154 is formed in a rod shape, and one end thereof is connected to the upper base 151 side of the lower base 152. The lower support pillar 154 is provided so that the other end passes through the hole of the upper base 151 and is located on the opposite side of the upper base 151 from the lower base 152. Eight lower support columns 154 are provided so that one end thereof forms an annular shape around the central axis CAx1 on the lower base 152 (see FIG. 37). The lower support column 154 can swing toward the central axis CAx1 side with one end as a fulcrum and the other end side.

The first inner die 160 is provided at the other end of each of the eight upper support columns 153. That is, a total of eight first inner molds 160 are provided. The second inner die 170 is provided at the other end of each of the eight lower support columns 154. That is, a total of eight second inner molds 170 are provided.

As shown in FIG. 38, the first inner die 160 has a first convex surface 161 on a part of the outer wall. The first convex surface 161 is formed in a spherical shape. The second inner mold 170 has a second convex surface 171 on a part of the outer wall. The second convex surface 171 is formed in a spherical shape.

As shown in FIG. 35, the first inner mold 160 and the second inner mold 170 are arranged alternately in the circumferential direction so that the first convex surface 161 and the second convex surface 171 face the opposite side to the central axis CAx1. .. As a result, the first convex surface 161 and the second convex surface 171 can form a spherical surface continuous in the circumferential direction.

The outer mold 180 has a concave surface 181 on the inner wall (see FIG. 39). The concave surface 181 is formed in a spherical shape. The outer die 180 is arranged outside the first inner die 160 and the second inner die 170 so that the concave surface 181 faces the first convex surface 161 and the second convex surface 171.

The mold drive body 155 is formed in a cylindrical shape. The mold drive body 155 is arranged inside the first inner mold 160 and the second inner mold 170 coaxially with the central axis CAx1. An engaging groove portion 156 is formed on the outer peripheral wall of the mold drive body 155. The engaging groove portion 156 is formed so as to extend from one end to the other end of the mold drive body 155. Eight engaging groove portions 156 are formed at equal intervals in the circumferential direction of the mold drive body 155.

The first inner mold 160 has an engaging convex portion 162 on the side opposite to the first convex surface 161. The engaging convex portion 162 can be engaged with the engaging groove portion 156 of the mold drive body 155. Further, the mold drive body 155 can move in the direction of the central axis CAx1 in a state where the engaging convex portion 162 is engaged with the engaging groove portion 156. The outer peripheral wall of the mold drive body 155 is formed in a tapered shape. Therefore, when the mold drive body 155 moves relative to the upper base 151 side in the central axis CAx1 direction with respect to the first inner mold 160 and the second inner mold 170, the eight first inner molds 160 gather toward the central shaft CAx1 side. It moves in this way (see FIGS. 39 and 40). As a result, the inner diameter of the spherical surface formed by the first convex surface 161 is reduced. When the first inner die 160 is moved so as to gather toward the central axis CAx1, the eight second inner die 170s can also be moved so as to gather toward the central axis CAx1. That is, when the first inner die 160 and the second inner die 170 move so as to gather toward the central axis CAx1, the inner diameter of the spherical surface formed by the first convex surface 161 and the second convex surface 171 is reduced.

The method for manufacturing the valve 30 includes the following steps.

<3-25> Spherical valve body manufacturing method (resin molding process)
In the resin molding step, the valve body 31 is resin-molded between the outer die 180 and the first inner die 160 and the second inner die 170 arranged inside the outer die 180. Specifically, as shown in FIGS. 35 and 39 (A), a space formed between the spherical surface formed by the first convex surface 161 and the second convex surface 171 and the concave surface 181 of the outer mold 180. Inject the molten resin into the space. When the resin cools and hardens, the resin molding process is completed.

<3-25-1>
When the valve body 31 is resin-molded in the resin molding step, the distance between the concave surface 181 and the first convex surface 161 and the second convex surface 171 is the same in at least a part of the rotation axis Axr1 direction and the circumferential direction (FIG. 39). (See (A)).

Therefore, at least a part of the valve body 31 can be made uniform. As a result, the accuracy of the spherical surface of the outer peripheral wall of the valve body 31 can be further improved, and the flow path area of the valve body flow path 300 can be further increased.

(Mold transfer process)
In the mold moving step after the resin molding step, the first inner die 160 and the second inner die 170 are moved to the inside of the valve body 31. Specifically, as shown in (A) and (B) of FIG. 39 and (A) to (E) of FIG. 40, the mold drive body 155 is centered with respect to the first inner mold 160 and the second inner mold 170. The first inner die 160 and the second inner die 170 are moved relative to the axis CAx1 direction, and the first convex surface 161 and the second convex surface 171 are reduced in diameter by moving the first inner die 160 and the second inner die 170 toward the central axis CAx1. As a result, a gap is formed between the inner peripheral wall 462 of the valve body 31 and the first convex surface 161 and the second convex surface 171. Then, by moving the first inner mold 160 and the second inner mold 170 relative to the valve body 31 in the direction of the central axis CAx1, the first inner mold 160 and the second inner mold 170 are extracted from the inside of the valve body 31.

<3-26>
As shown in FIGS. 41A and 41B, the protrusion height H1 of the first convex surface 161 and the second convex surface 171 allows the first inner mold 160 and the second inner mold 170 to move in the mold moving step. The distance is set smaller than Dm1.

Therefore, when the first inner die 160 and the second inner die 170 are pulled out from the inside of the valve body 31, the first convex surface 161 and the second convex surface 171 do not interfere with the inner peripheral wall 462 of the valve body 31, and the first inner die 160 And the second inner die 170 can be easily pulled out from the valve body 31.

<3-25>
As described above, the present embodiment is a method for manufacturing a valve 30 having a valve body 31 rotatable around the rotation axis Axr1 and a valve body flow path 300 formed inside the valve body 31, and is a resin. Includes a molding process and a mold transfer process.

The valve body 31 is formed so that at least a part of the outer peripheral wall is formed in a spherical shape and at least a part of the inner peripheral wall is recessed outward.

In the resin molding step, the valve body 31 is resin-molded between the outer mold 180 and the inner molds (160, 170) arranged inside the outer mold 180.

In the mold moving step, after the resin molding step, the inner molds (160, 170) are moved to the inside of the valve body 31.

By manufacturing the valve 30 by the above manufacturing method, the molding accuracy of the spherical surface of the outer peripheral wall of the valve body 31 can be improved. This makes it possible to suppress leakage of cooling water on the outer peripheral wall of the valve body 31.

In addition, the flow path area of the valve body flow path 300 can be increased, and the water flow resistance can be reduced.

(Sixth Embodiment)
The valve device according to the sixth embodiment is shown in FIG. 42. The sixth embodiment is different from the first embodiment in the configuration of the valve 30 and the like.

The ball valves 41, 42, the tubular valve connecting portion 45, and the ball valve 43 of the valve body 31 are integrally arranged in this order from the drive unit 70 side in the rotation axis Axr1 direction toward the side opposite to the drive unit 70. It is formed. The valve body 31 is formed in a cylindrical shape, and the ball valves 41, 42, the tubular valve connecting portion 45, and the inner peripheral wall of the ball valve 43 are formed in a substantially cylindrical surface shape centered on the rotation axis Axr1. The inner peripheral wall of the valve body 31 is formed in a tapered shape so that the inner diameter increases from the drive portion 70 side in the rotation axis Axr1 direction toward the side opposite to the drive portion 70. The valve body 31 is formed so that the outer peripheral wall of the ball valves 41, 42, and 43 has a spherical shape. The shaft 32 is provided integrally with the valve body 31 on the rotating shaft Axr1.

The outlet ports 221, 222, and 223 are formed at positions corresponding to the ball valves 41, 42, and 43, respectively. The end of the pipe portion 511 opposite to the outlet port 221 is connected to the radiator 5 via a hose or the like. The end of the pipe portion 512 on the opposite side of the outlet port 222 is connected to the heater 6 via a hose or the like. The end of the pipe portion 513 on the opposite side of the outlet port 223 is connected to the device 7 via a hose or the like.

As shown in FIG. 42, the ball valves 41, 42, and 43 are provided at positions corresponding to the outlet ports 221, 222, and 223, respectively. Here, the "position corresponding to the exit port 221, 222, 223" means a range that overlaps with the projection when the exit ports 221, 222, and 223 are projected in the axial direction of the exit ports 221, 222, and 223. ..

As shown in FIG. 42, the cylindrical valve connecting portion 45 is provided between the outlet port 222 and the outlet port 223 in the rotation axis Axr1 direction.

The mounting surface 201 is formed so as to be orthogonal to the pipe mounting surface 202 (see FIG. 43). The inlet port 220 is formed so as to open to the mounting surface 201. The opening of the inlet port 220 on the mounting surface 201 is circular.

As shown in FIG. 44, the valve device 10 is attached to the engine 2 in the narrow space A2 between the engine 2 and the inverter 16. Here, the valve device 10 is attached to the engine 2 so that the pipe member 50 is located on the upper side in the vertical direction with respect to the valve 30.

<1-1> Housing Fastening Hole As shown in FIGS. 42 and 43, the housing 20 has fastening portions 231, 232, and 233 integrally formed with the housing main body 21. The fastening portions 231, 232, and 233 are formed so as to project from the end portion of the housing body 21 on the mounting surface 201 side in the surface direction of the mounting surface 201. Further, the housing 20 has fastening holes 241, 242, and 243 formed corresponding to the fastening portions 231, 232, and 233, respectively.

The fastening member 240 is inserted into the fastening holes 241 and 242, 243 and fastened to the engine 2. As a result, the valve device 10 is attached to the engine 2. A rubber port seal member 209 is provided on the radial outer side of the inlet port 220 of the mounting surface 201. The port seal member 209 is in a state of being compressed by the axial force of the fastening member 240 when the valve device 10 is attached to the engine 2. As a result, the port seal member 209 can hold the space between the mounting surface 201 and the engine 2 in a liquid-tight manner, and can prevent the cooling water from leaking from the inlet port 220 through the space between the mounting surface 201 and the engine 2. ..

As shown in FIG. 43, the opening of the inlet port 220 is formed inside the three fastening holes, that is, the triangle Ti1 formed by connecting the fastening holes 241 and 242, 243.

<1-1>
As described above, the present embodiment is a valve device 10 capable of controlling the cooling water of the engine 2 of the vehicle 1, and includes a housing 20 and a valve 30.

The housing 20 is opened inside the housing body 21 forming an internal space 200 inside, and the mounting surface 201 and the mounting surface 201 formed on the outer wall of the housing body 21 so as to face the engine 2 when mounted on the engine 2. An inlet port 220 that connects the space 200 and the outside of the housing body 21, a plurality of fastening portions (231, 232, 233) integrally formed with the housing body 21, and a plurality of fastening portions corresponding to each of the fastening portions. It has a plurality of fastening holes (241, 242, 243).

The valve 30 has a valve body 31 that can rotate around the axis of rotation Axr1 in the internal space 200, and a valve body flow path 300 that is formed inside the valve body 31 and can communicate with the inlet port 220.

The housing body 21 is fixed to the engine 2 by a fastening member 240 that passes through the fastening holes (241, 242, 243) and is screwed into the engine 2.

At least three fastening holes are formed.

The opening of the inlet port 220 is formed inside a triangle Ti1 formed by connecting three fastening holes (241, 242, 243).

Therefore, when the port seal member 209 made of an annular elastic member is provided around the inlet port 220, when the housing body 21 is fixed to the engine 2 by the fastening member 240 passing through the three fastening holes (231, 232, 233). , The port seal member 209 can be compressed in a well-balanced manner. As a result, the sealing property around the inlet port 220 can be effectively secured.

As shown in FIG. 43, the fastening portion 231 is formed so as to project from the housing main body 21 in the longitudinal direction of the housing main body 21. The fastening portions 232 and 233 are formed so as to project from the housing main body 21 in the lateral direction of the housing main body 21.

As shown in FIG. 43, the protruding start position of the fastening portion 231 is a corner portion of the rectangular mounting surface 201 on which the inlet port 220 of the housing body 21 is formed, which is opposite to the driving portion 70. The protruding start position of the fastening portion 232 is the entrance port 220 on the side opposite to the fastening portion 233 among the two sides extending in the longitudinal direction of the rectangular mounting surface 201 on which the inlet port 220 of the housing body 21 is formed. It is a nearby part. The protruding start position of the fastening portion 233 is a portion on the drive portion 70 side of the end portion of the housing body 21 in the lateral direction.

As shown in FIG. 43, the distance between the side connecting the center of the fastening hole 241 and the center of the fastening hole 242 and the center Cp1 of the inlet port 220 among the sides of the triangle Ti1 is the center of the fastening hole 242 and the fastening hole 243. It is smaller than the distance between the side connecting the center and the center Cp1. The distance between the center Cp1 and the side connecting the center of the fastening hole 242 and the center of the fastening hole 243 is smaller than the distance between the side connecting the center of the fastening hole 243 and the center of the fastening hole 241 and the center Cp1.

<4-1> Suppression of protrusion of the cover fixing portion As shown in FIGS. 45 and 46, the drive portion cover 80 is formed on the cover main body 81 forming the drive portion space 800 and the outer edge portion of the cover main body 81 to form the housing main body. It has cover fixing portions 821 to 826 fixed to 21.

Cover fastening holes 831 to 836 are formed in each of the cover fixing portions 821 to 826. A fixing member 830 is inserted into the cover fastening holes 831 to 836 and fastened to the housing body 21.

Here, the cover fixing portions 823 and 824 are formed so as not to protrude outward from at least one of both ends of the direction Dv1 perpendicular to the mounting surface 201 of the housing main body 21.

Specifically, the cover fixing portions 823 and 824 are outside the housing end portion 215, which is an end portion opposite to the mounting surface 201 in the direction Dv1 perpendicular to the mounting surface 201 of the housing body 21, that is, the mounting surface. It is formed so as not to protrude to the opposite side of 201.

The virtual plane Vp3 shown in FIG. 45 is a virtual plane that passes through the housing end portion 215 and is parallel to the mounting surface 201. The cover fixing portions 823 and 824 are located on the mounting surface 201 side with respect to the virtual plane Vp3.

Further, the cover fixing portions 821 and 826 are not projected to the outside of the housing end portion 216, which is the end portion of the housing body 21 on the mounting surface 201 side in the direction Dv1 perpendicular to the mounting surface 201, that is, to the mounting surface 201 side. It is formed. That is, the cover fixing portions 821 and 826 are located on the virtual plane Vp3 side with respect to the mounting surface 201.

Here, the cover main body 81 is a part of the drive unit cover 80 and means a portion forming the drive unit space 800. Therefore, although the cover fixing portions 821 to 826 are portions constituting the drive portion cover 80, they are formed as portions different from the cover main body 81.

As shown in FIG. 45, the cover flat surface portions 811, 812, 813 and the cover curved surface portion 814 are formed on the outer wall of the cover main body 81. One cover plane portion 811 is formed in a plane shape so as to be orthogonal to the rotation axis Axr1. A plurality of cover flat surface portions 812 are formed in a plane shape so as to be parallel to the rotation axis Axr1. One cover plane portion 813 is formed in a plane shape so as to be inclined with respect to the rotation axis Axr1. A plurality of cover curved surface portions 814 are formed in a curved surface shape so as to be parallel to the rotation axis Axr1. Here, the plurality of cover curved surface portions 814 are connected to each other.

As shown in FIG. 45, the cover fastening holes 831 to 833 are formed on the pipe member 50 side with respect to the shaft Axm1 of the motor 71. The cover fastening holes 834 to 836 are formed on the connector portion 84 side with respect to the shaft Axm1 of the motor 71. The cover fastening hole 833 is formed at a position closer to the shaft Axm1 of the motor 71 than the cover fastening holes 831 and 832. The cover fastening hole 834 is formed at a position closer to the shaft Axm1 of the motor 71 than the cover fastening holes 835 and 836.

<4-1>
As described above, the present embodiment is a valve device 10 capable of controlling the cooling water of the engine 2 of the vehicle 1, and includes a housing 20, a valve 30, a partition wall 60, a drive unit cover 80, and a drive unit 70. ..

The housing 20 includes a housing body 21 that forms an internal space 200 inside, a mounting surface 201 formed on the outer wall of the housing body 21 so as to face the engine 2 when mounted on the engine 2, and an internal space 200 and a housing. It has a port (220, 221, 222, 223) for connecting to the outside of the main body 21.

The valve 30 connects the valve body 31 that can rotate around the rotation axis Axr1 in the internal space 200, the valve body flow path 300 formed inside the valve body 31, the valve body flow path 300, and the outside of the valve body 31. It has a valve body opening (410, 420, 430) and a shaft 32 provided on the rotation shaft Axr1, and has a valve body flow path 300 and a port (4, 420, 430) via the valve body opening (410, 420, 430). The communication state with 220, 221, 222, 223) can be changed by the rotation position of the valve body 31.

The partition wall portion 60 is provided so as to separate the internal space 200 from the outside of the housing main body 21, and has a shaft insertion hole 62 formed so that one end of the shaft 32 can be inserted.

The drive unit cover 80 is provided on the side opposite to the internal space 200 with respect to the partition wall portion 60, and forms the drive unit space 800 with the partition wall portion 60.

The drive unit 70 is provided in the drive unit space 800, and can rotationally drive the valve body 31 via one end of the shaft 32.

The drive unit cover 80 has a cover main body 81 forming the drive unit space 800, and cover fixing portions (821 to 826) formed on the outer edge portion of the cover main body 81 and fixed to the housing main body 21.

The cover fixing portions (821 to 826) are formed so as not to protrude outward from at least one of both end portions (215, 216) of the direction Dv1 perpendicular to the mounting surface 201 of the housing main body 21.

Therefore, the physique of the direction Dv1 perpendicular to the mounting surface 201 of the drive unit cover 80 can be reduced, and the physique of the direction Dv1 perpendicular to the mounting surface 201 of the valve device 10 can be reduced. As a result, the valve device 10 can be mounted in the narrow space A2 of the vehicle 1.

As shown in FIG. 44, various devices and the like are mounted around the engine 2. Therefore, the space in which the valve device 10 can be arranged is limited in the engine room. In the present embodiment, since the physique of the valve device 10 can be reduced, the valve device 10 can be easily mounted in the narrow space A2 of the vehicle 1 (see FIG. 44).

<4-1-1>
As shown in FIG. 45, the cover fixing portions 821 to 826 are located on the virtual plane Vp4 perpendicular to the mounting surface 201. The virtual plane Vp4 is a plane perpendicular to the axis Axr1 of the rotation axis and the axis Axs1 of the shaft 32.

Therefore, the height of the drive unit cover 80 can be reduced.

<4-2>
As shown in FIG. 45, the housing end portion 215, which is the end portion of the housing body 21 opposite to the mounting surface 201, is from the cover end portion 815, which is the end portion of the cover body 81 opposite to the mounting surface 201. It is formed so as not to protrude outward. The cover end portion 815 is formed along the virtual plane Vp3.

Therefore, the physique of the direction Dv1 perpendicular to the mounting surface 201 of the housing body 21 can be made smaller, and the physique of the direction Dv1 perpendicular to the mounting surface 201 of the valve device 10 can be made smaller.

<4-2-1>
As shown in FIG. 46, the housing main body 21 has a notch portion 212 such that the partition wall portion 60 is exposed at the housing end portion 215 which is an end portion on the opposite side to the mounting surface 201.

Therefore, the body shape of the direction Dv1 perpendicular to the mounting surface 201 of the valve device 10 can be made smaller.

As shown in FIG. 45, the notch portion 212 is formed between the cover fixing portion 823 and the cover fixing portion 824.

<4-3>
As shown in FIG. 45, the connector portion 84 is formed so as not to protrude outward from at least one of both ends of the direction Dv1 perpendicular to the mounting surface 201 of the cover main body 81.

Specifically, the connector portion 84 is outside the cover end portion 815, which is the end portion on the side opposite to the mounting surface 201 in the direction Dv1 perpendicular to the mounting surface 201 of the cover main body 81, that is, opposite to the mounting surface 201. It is formed so as not to protrude to the side. That is, the connector portion 84 is located on the mounting surface 201 side with respect to the virtual plane Vp3.

Further, the connector portion 84 is formed so as not to protrude to the outside of the cover end portion 816, which is the end portion on the mounting surface 201 side in the direction Dv1 perpendicular to the mounting surface 201 of the cover main body 81, that is, to the mounting surface 201 side. .. That is, the connector portion 84 is located on the virtual plane Vp3 side with respect to the mounting surface 201.

<4-3-1>
As shown in FIG. 45, the connector portion 84 is formed so as to project from the outer edge portion of the cover main body 81 in a direction other than the direction Dv1 perpendicular to the mounting surface 201.

<4-3-2>
Specifically, the connector portion 84 is formed so as to project from the outer edge portion of the cover main body 81 in the direction Dp1 parallel to the mounting surface 201. The parallel direction Dp1 is a direction perpendicular to the axis Axr1 of the rotation axis and the axis Axs1 of the shaft 32.

Therefore, the physique of the direction Dv1 perpendicular to the mounting surface 201 of the drive unit cover 80 can be made smaller, and the physique of the direction Dv1 perpendicular to the mounting surface 201 of the valve device 10 can be made smaller.

As shown in FIG. 45, the connector portion 84 is formed so as to project in the direction Dp1 from the portion of the outer edge portion of the cover main body 81 between the cover fixing portion 825 and the cover fixing portion 826.

<4-4>
As described above, the present embodiment is a valve device 10 capable of controlling the cooling water of the engine 2 of the vehicle 1, and includes a housing 20, a valve 30, a partition wall 60, a drive unit cover 80, and a drive unit 70. ..

As shown in FIG. 45, the housing 20 has a housing body 21 forming an internal space 200 inside, and a housing side cover fixing portion (291) formed as a portion different from the housing body 21 so as to project from the outer wall of the housing body 21. ~ 296), a mounting surface 201 formed on the outer wall of the housing body 21 so as to face the engine 2 when mounted on the engine 2, and a port (220,) connecting the internal space 200 and the outside of the housing body 21. It has 221, 222, 223).

The valve 30 connects the valve body 31 that can rotate around the rotation axis Axr1 in the internal space 200, the valve body flow path 300 formed inside the valve body 31, the valve body flow path 300, and the outside of the valve body 31. It has a valve body opening (410, 420, 430) and a shaft 32 provided on the rotation shaft Axr1, and has a valve body flow path 300 and a port (4, 420, 430) via the valve body opening (410, 420, 430). The communication state with 220, 221, 222, 223) can be changed by the rotation position of the valve body 31.

The partition wall portion 60 is provided so as to separate the internal space 200 from the outside of the housing main body 21, and has a shaft insertion hole 62 formed so that one end of the shaft 32 can be inserted.

The drive unit cover 80 is provided on the side opposite to the internal space 200 with respect to the partition wall portion 60, and forms the drive unit space 800 with the partition wall portion 60.

The drive unit 70 is provided in the drive unit space 800, and can rotationally drive the valve body 31 via one end of the shaft 32.

As shown in FIG. 45, the drive unit cover 80 is formed as a portion different from the cover body 81 forming the drive unit space 800 and the cover body 81 so as to project from the outer wall of the cover body 81, and the housing side cover fixing portion. It has a cover fixing portion (821 to 826) fixed to (291 to 296). Here, the cover fixing portions 821 to 826 are fixed to the housing side cover fixing portions 291 to 296 by the fixing member 830, respectively.

The cover fixing portions (821 to 826) are formed so as not to protrude outward from at least one of both end portions (215, 216) of the direction Dv1 perpendicular to the mounting surface 201 of the housing main body 21. Here, the housing end portions 215 and 216, which are both ends of the direction Dv1 perpendicular to the mounting surface 201 of the housing main body 21, are formed on the housing main body 21 as portions different from the housing side cover fixing portions 291 to 296.

Therefore, the physique of the direction Dv1 perpendicular to the mounting surface 201 of the drive unit cover 80 can be reduced, and the physique of the direction Dv1 perpendicular to the mounting surface 201 of the valve device 10 can be reduced. As a result, the valve device 10 can be mounted in the narrow space A2 of the vehicle 1.

<4-5>
As shown in FIG. 45, in a state where the housing main body 21 is attached to the engine 2, the cover fixing portions 821 to 826 have both ends (215, 216) in the direction Dv1 perpendicular to the mounting surface 201 of the housing main body 21 and in the horizontal direction. ), It is formed so as not to protrude outward from at least one of them. That is, the cover fixing portions 821 to 826 are formed so as not to protrude from the housing end portion 215 in the direction Dv1 perpendicular to the mounting surface 201 which is the thinnest direction of the housing main body 21.

Therefore, the physique in the direction Dv1 perpendicular to the mounting surface 201 of the drive unit cover 80 and the horizontal direction can be reduced, and the physique in the direction Dv1 perpendicular to the mounting surface 201 of the valve device 10 and the physique in the horizontal direction can be reduced. As a result, the valve device 10 can be mounted in a narrow space A2 that is narrow in the horizontal direction and Dv1 in the direction perpendicular to the mounting surface 201.

<5-1> Housing-side fixing portion gap As shown in FIG. 47, the housing 20 has housing-side fixing portions 251 to 256 integrally formed with the housing main body 21. Here, the housing-side fixing portions 251 to 253 are formed so as to be aligned in a direction parallel to the rotation axis Axr1 on the side opposite to the mounting surface 201 with respect to the virtual plane Vp5 including the rotation axis Axr1 and parallel to the mounting surface 201. There is. Further, the housing-side fixing portions 254 to 256 are formed so as to be aligned in a direction parallel to the rotation axis Axr1 on the mounting surface 201 side with respect to the virtual plane Vp5. That is, the housing-side fixing portions 251 to 253 and the housing-side fixing portions 254 to 256 are formed so as to sandwich a virtual plane Vp5 between them.

The distance between the housing-side fixing portion 251 and the housing-side fixing portion 252 is larger than the distance between the housing-side fixing portion 252 and the housing-side fixing portion 253. The distance between the housing-side fixing portion 254 and the housing-side fixing portion 255 is the same as the distance between the housing-side fixing portion 255 and the housing-side fixing portion 256. Further, the distance between the housing-side fixing portion 252 and the housing-side fixing portion 253 is smaller than the distance between the housing-side fixing portion 255 and the housing-side fixing portion 256.

Further, the housing-side fixing portion 251 is formed on the drive portion 70 side with respect to the housing-side fixing portion 254 in the rotation shaft Axr1 direction. The housing-side fixing portion 252 is formed on the housing-side fixing portion 256 side with respect to the housing-side fixing portion 255 in the rotation axis Axr1 direction. The housing-side fixing portion 253 is formed on the side slightly opposite to the driving portion 70 with respect to the housing-side fixing portion 256 in the rotation shaft Axr1 direction.

Housing-side fastening holes 261 to 266 are formed in each of the housing-side fixing portions 251 to 256. The fastening holes 261 to 266 on the housing side are formed in a substantially cylindrical shape, and the shaft is formed so as to be parallel to the mounting surface 201, the virtual plane Vp5, and the vertical direction. Further, no thread groove is formed in advance on the inner peripheral wall of the fastening holes 261 to 266 on the housing side.

As shown in FIG. 47, the pipe member 50 has a pipe portion 511 to 514, a pipe connecting portion 52, a pipe side fixing portion 531 to 536, and the like. The pipe portions 511 to 513 are provided so that the inner space communicates with the outlet ports 221 to 223, respectively. The pipe portion 514 is provided so that the inner space communicates with the relief port 224. The pipe portion 511 and the pipe portion 514 are integrally formed, and the inner spaces communicate with each other. Although the pipe portion 512 and the pipe portion 514 are integrally formed so as to connect the outer walls, the inner spaces do not communicate with each other. The pipe connecting portion 52 is integrally formed with the pipe portions 511 to 514 so as to connect the ends of the pipe portions 511 to 514 on the housing body 21 side to each other.

The pipe-side fixing portions 531 to 536 are formed at positions corresponding to the housing-side fixing portions 251 to 256 on the outer edge portion of the pipe connecting portion 52, respectively. Pipe-side fastening holes 541 to 546 are formed in each of the pipe-side fixing portions 531 to 536. The pipe-side fastening holes 541 to 546 are formed in a substantially cylindrical shape, and their respective shafts are formed so as to substantially coincide with the shafts of the housing-side fastening holes 261 to 266.

The valve device 10 includes a pipe fastening member 540. The pipe fastening member 540 passes through the pipe-side fastening holes 541 to 546 and is screwed into the housing-side fastening holes 261 to 266 to fix the pipe-side fixing portions 531 to 536 and the housing-side fixing portions 251 to 256.

As shown in FIGS. 48 and 49, the housing-side fixing portions 251 to 256 are formed in a substantially columnar shape. The housing-side fixing portions 251 to 256 are provided so that one end surface in the axial direction is located on the same plane as the pipe mounting surface 202. The housing 20 has a housing connecting portion 259 that connects the outer peripheral wall on the other end side in the axial direction of the housing side fixing portions 251 to 256 and the outer wall of the housing main body 21. As a result, the housing-side fixing portions 251 to 256 form an inter-housing gap Sh1 as a gap between the housing-side fixing portions 251 and 256 with the outer wall of the housing main body 21. The gap between housings Sh1 is formed between the housing connecting portion 259 and the pipe-side fixing portions 531 to 536.

More specifically, the housing-to-housing gap Sh1 is formed between the housing-side fixing portions 251 to 256, the outer wall of the housing main body 21, the housing connecting portion 259, and the pipe-side fixing portions 531 to 536.

The housing-side fastening holes 261 to 266 are formed so as to be coaxial with the housing-side fixing portions 251 to 256, respectively. Further, the end portion of the housing side fastening holes 261 to 266 opposite to the pipe member 50 is located on the pipe member 50 side with respect to the housing connection portion 259.

<5-1>
As described above, the present embodiment is a valve device 10 capable of controlling the cooling water of the engine 2 of the vehicle 1, and includes a housing 20, a valve 30, a pipe member 50, and a pipe fastening member 540.

The housing 20 has a housing body 21 that forms an internal space 200 inside, a housing-side fixing portion (251 to 256) that is integrally formed with the housing body 21, and a housing-side fastening hole (261 to 261) that is formed in the housing-side fixing portion. 266) and ports (220, 221, 222, 223, 224) connecting the internal space 200 to the outside of the housing body 21.

The valve 30 includes a valve body 31 that can rotate around the axis of rotation Axr1 in the internal space 200, a valve body flow path 300 formed inside the valve body 31, and a valve body flow path 300 and the outside of the valve body 31. The valve body opening (410, 420, 430) is provided, and the communication state between the valve body flow path 300 and the port via the valve body opening can be changed by the rotation position of the valve body 31.

The pipe member 50 is formed integrally with the tubular pipe portion (511, 512, 513, 514) and the pipe portion whose inner space communicates with the port (221, 222, 223, 224) and is fixed to the housing side fixing portion. It has a pipe-side fixing portion (531 to 536) to be formed, and a pipe-side fastening hole (541 to 546) formed in the pipe-side fixing portion.

The pipe fastening member 540 passes through the pipe-side fastening holes (541 to 546) and is screwed into the housing-side fastening holes (261 to 266) to form a pipe-side fixing portion (531 to 536) and a housing-side fixing portion (251 to 256). ) And is fixed.

The housing-side fixing portions (251 to 256) form a gap (Sh1) with the outer wall of the housing main body 21.

Therefore, when the pipe member 50 is fastened to the housing 20 by the pipe fastening member 540, even if the housing side fixing portions (251 to 256) are cracked, it is possible to prevent the cracks from extending to the housing main body 21. This makes it possible to suppress leakage of cooling water that may occur due to the fastening of the pipe member 50 to the housing 20.

In the present embodiment, since the outlet port 221 is connected to the radiator 5 and the flow rate is large, the housing main body 21 is cracked from the housing side fixing portions 251 and 254 in the vicinity of the outlet port 221 among the housing side fixing portions (251 to 256). It is possible to effectively suppress the leakage of the cooling water by suppressing the leakage of the cooling water.

As shown in FIG. 47, the housing-side fixing portion 251 and the housing-side fixing portion 254 are formed so as to sandwich the outlet port 221 between them. Here, the housing-side fixing portions 251 and 254 are formed at a position closer to the outlet port 221 than the housing-side fixing portions 252, 255, 255, 256, that is, in the vicinity of the outlet port 221. The center of the outlet port 221 is located between two parallel tangents tangent to the outer edge of the housing side fastening holes 261 and 264.

<5-2>
As shown in FIG. 42, the housing 20 has outlet ports 221-223. As shown in FIGS. 42, 50, and 51, the pipe member 50 has pipe portions 511 to 513 connected to each other. The valve device 10 is provided in each of the pipe portions 511 to 513, and includes a plurality of seal units 35 capable of liquidally holding between the valve body 31 and the outer peripheral wall of the valve body 31.

Therefore, the number of parts can be reduced for tapping and the like. Further, the man-hours for assembling the pipe member 50 can be reduced.

The ends of the pipe portions 511 to 513 provided with the seal unit 35 are connected to each other by the pipe connecting portion 52. The ends of the pipe portions 511 to 513 provided with the seal unit 35 are formed so that their axes are parallel to each other.

<5-2-1>
As shown in FIG. 42, of the inlet ports 220 and the outlet ports 221 to 223, the outlet ports 221 to 223 provided with the seal unit 35 are formed so that their axes are parallel to each other and open to the pipe mounting surface 202. There is. The outlet ports 221 to 223 are formed so as to be coaxial with the end portion of the pipe portion 511 to 513 where the seal unit 35 is provided.

Therefore, the pipe member 50 to which the plurality of seal units 35 are assembled can be assembled to the housing main body 21 from one direction.

<5-3>
As shown in FIGS. 42, 50 and 51, the valve device 10 includes a gasket 509. The gasket 509 is formed of an elastic member such as rubber, and is provided between the pipe member 50 and the pipe mounting surface 202 of the housing body 21 on the radial outer side of each of the pipe portions 511 to 513, and is provided between the pipe member 50 and the housing. It can be held liquidtightly between the main body 21 and the main body 21.

As shown in FIG. 51, the pipe member 50 can be assembled to the housing main body 21 in a state where the three seal units 35 are held by the pipe portions 511 to 513. Here, the gasket 509 is assembled to the housing main body 21 together with the pipe member 50 in a state of being fitted in the gasket groove 521 formed in the pipe connecting portion 52. That is, the pipe member 50 to which the plurality of seal units 35 and the gasket 509 are assembled can be assembled to the housing main body 21 from one direction at a time.

Further, by reducing the assembling man-hours by assembling a plurality of members at once, it is possible to unify a plurality of defects that may occur when assembling the plurality of members and improve the quality of the valve device 10. This is important because the device mounted on the vehicle 1 is required to have high quality.

As shown in FIG. 50, the outer diameters of the three seal units 35 provided in each of the pipe portions 511 to 513 are set according to the size of the inner diameter of the pipe portions 511 to 513. The outer diameter of the seal unit 35 provided in the pipe portion 511 is larger than the outer diameter of the seal unit 35 provided in the pipe portions 512 and 513. The outer diameter of the seal unit 35 provided in the pipe portion 512 is substantially the same as the outer diameter of the seal unit 35 provided in the pipe portion 513.

<5-4>
As shown in FIG. 47, the outlet ports 221 to 223 and the relief port 224 are on a straight line connecting two housing side fastening holes among a plurality of housing side fastening holes (261 to 266), or three housing side fastening holes. It is formed so that the center is located inside the triangle formed by.

Specifically, the outlet port 221 is centered inside the triangle To1 formed by connecting the center of the housing side fastening hole 261, the center of the housing side fastening hole 262, and the center of the housing side fastening hole 264. It is formed. The outlet port 222 is formed so that the center is located on a straight line Lo1 connecting the center of the housing side fastening hole 262 and the center of the housing side fastening hole 265. The outlet port 223 is formed so that the center is located inside the triangle To2 formed by connecting the center of the housing side fastening hole 262, the center of the housing side fastening hole 263, and the center of the housing side fastening hole 266. The relief port 224 is formed so that the center is located inside the triangle To1.

Therefore, the sealing load of the gasket 509 on the radial outer side of the outlet ports 221 to 223 and the relief port 224 can be dispersed and stabilized.

<5-5>
As shown in FIG. 42, the housing 20 has a pipe mounting surface 202 formed on the outer wall of the housing body 21 so as to face the pipe member 50 in a state where the pipe member 50 is mounted on the housing body 21. The port formed on the housing body 21 includes three outlet ports (221-223) that open into the pipe mounting surface 202 and one relief port 224.

As shown in FIG. 47, the valve device 10 includes a relief valve 39. The relief valve 39 is provided in the relief port 224, and allows or blocks communication between the internal space 200 via the relief port 224 and the outside of the housing body 21 depending on the conditions. Specifically, the relief valve 39 opens when a predetermined condition, for example, the temperature of the cooling water becomes a predetermined temperature or higher, and the internal space 200 via the relief port 224 and the outside of the housing body 21, that is, the pipe. Communication with the space inside the unit 511 is allowed, and when the temperature of the cooling water becomes lower than a predetermined temperature, the communication is cut off.

As shown in FIG. 47, at least two (221 to 223) of the three outlet ports (221 to 223) have a port arrangement straight line Lp1 in which the center of each opening is one straight line on the pipe mounting surface 202. It is formed to be located on top. Here, the port arrangement straight line Lp1 is parallel to the mounting surface 201 and is located on the virtual plane Vp5.

That is, at least two (221 to 223) of the three outlet ports (221 to 223) are formed so that the centers of their respective openings are aligned linearly in the rotation axis Axr1 direction on the pipe mounting surface 202. There is.

The relief port 224 is formed so that the center of the opening is located at a position opposite to the mounting surface 201 from the port arrangement straight line Lp1.

As shown in FIG. 42, the inlet port 220, the relief port 224, and the space between valves 400 overlap in the direction of the rotation axis Axr1. Therefore, it is possible to prevent the ball valves 41 and 42 from becoming obstacles when guiding the cooling water flowing in from the inlet port 220 to the relief port 224, and the temperature of the cooling water from the inlet port 220 is smoothly transmitted to the relief valve 39. , The reactivity of the relief valve 39 can be improved.

Therefore, by arranging the three outlet ports (221 to 223) side by side in a straight line, the relief port 224 can be formed on the housing body 21 while reducing the physique of the housing body 21.

The relief port 224 is formed on the housing body 21 so that a part of the relief port 224 is located between the outlet port 221 and the outlet port 222.

As shown in FIG. 47, a part of the relief port 224 is formed in a region formed by two tangents connecting the outer edge of the exit port 221 and the outer edge of the exit port 222.

<5-6>
As shown in FIG. 47, when viewed from the direction of the port arrangement straight line Lp1, at least two (221 to 223) of the three exit ports (221 to 223) and the relief port 224 partially overlap each other. It is formed.

Therefore, the physique of the housing body 21 forming the relief port 224 can be made smaller.

<5-7>
As shown in FIG. 47, the relief port 224 is formed so that the center of the opening is located on the relief arrangement straight line Lr1 which is a straight line on the pipe mounting surface 202 parallel to the port arrangement straight line Lp1. Here, the relief arrangement straight line Lr1 is located on the side opposite to the mounting surface 201 with respect to the port arrangement straight line Lp1.

That is, the distance from the mounting surface 201 to the center of the relief port 224 is larger than the distance from the mounting surface 201 to the center of each of the exit ports 221, 222, 223.

When viewed from the direction of the port arrangement straight line Lp1, the portion on the relief arrangement straight line Lr1 side with respect to at least two (221 to 223) of the three exit ports (221 to 223) and the relief port 224. The portion on the port arrangement straight line Lp1 side with respect to the relief arrangement straight line Lr1 is formed so as to partially overlap.

That is, when viewed from the rotation axis Axr1 direction, the portion opposite to the mounting surface 201 with respect to the center of at least two (221 to 223) of the three outlet ports (221 to 223) is the center of the relief port 224. It overlaps with the portion on the mounting surface 201 side.

When the centers of the three outlet ports form a triangle on the pipe mounting surface 202, the center of the two outlet ports far from the mounting surface 201 when viewed from the rotation axis Axr1 direction is on the opposite side of the mounting surface 201. The portion overlaps the portion on the mounting surface 201 side with respect to the center of the relief port 224.

Therefore, the physique of the housing body 21 forming the relief port 224 can be made smaller.

<5-8>
As shown in FIG. 47, at least two (261 to 263) of the plurality of housing side fastening holes (261 to 266) are fastening hole arrangement straight lines located on the relief port 224 side with respect to the port arrangement straight line Lp1. It is formed on Lh1. Here, the fastening hole arrangement straight line Lh1 is parallel to the port arrangement straight line Lp1 and the relief arrangement straight line Lr1, and is located on the opposite side of the relief arrangement straight line Lr1 from the port arrangement straight line Lp1.

As shown in FIG. 47, the relief port 224 is formed so as to overlap a part of the fastening hole arrangement straight line Lh1.

Therefore, the physique of the housing body 21 forming the relief port 224 can be made smaller.

<5-9>
As shown in FIG. 50, the pipe portions 511 to 513 are formed on the opposite sides of the pipe portion main body 501 and the outlet ports 221 to 223 (pipe connecting portion 52) of the pipe portion main body 501, and the inner diameter is the pipe portion main body 501. It has a pipe portion end portion 502 having an outer diameter larger than the inner diameter of the pipe portion main body 501 and larger than the outer diameter of the pipe portion main body 501.

Therefore, when the pipe end portion 502 is formed, for example, by forcibly punching, the pipe portion end portion 502 can be easily deformed inward and the mold can be removed, and cracking of the pipe portion end portion 502 can be suppressed. As a result, leakage of cooling water from the end portion 502 of the pipe portion can be suppressed.

Since the outer diameter of the pipe portion end portion 502 is larger than the outer diameter of the pipe portion main body 501, it is possible to prevent the hose or the like connected to the pipe portion end portion 502 from coming off.

As shown in FIG. 42, the pipe portion 511 is formed so as to extend from the pipe mounting surface 202 to the side opposite to the outlet port 221. The pipe portion 512 is formed so as to extend from the pipe mounting surface 202 to the side opposite to the outlet port 222. The pipe portion 513 is formed so as to extend from the pipe mounting surface 202 to the side opposite to the outlet port 223, then bend, and extend to the side opposite to the pipe portion 512 in the direction parallel to the rotation axis Axr1.

The pipe portion 513 is formed so as to bend at a position corresponding to the axial center of the pipe portion 512. Therefore, a gap Sp1 is formed between the portion of the pipe portion 512 on the pipe mounting surface 202 side and the pipe portion 513.

<5-10>
As shown in FIG. 50, the pipe portions 511 to 513 have a pipe portion protrusion 503 that protrudes outward from the outer wall of the pipe portion main body 501.

The pipe portion protrusion 503 can easily determine the fixing position of the hose with respect to the pipe portions 511 to 513, and can prevent the hose from being stuck too deeply into the pipe portions 511 to 513.

<5-11>
As shown in FIG. 47, the pipe portion protrusion 503 is formed on a virtual plane Vp5 parallel to the mounting surface 201.

That is, as shown in FIG. 47, the pipe portion protrusions 503 are formed so as to be linearly arranged in the rotation axis Axr1 direction when viewed from the axial direction of the outlet ports 221 to 223.

Therefore, the size in the direction perpendicular to the mounting surface 201 of the pipe member 50 can be reduced, and the physique of the valve device 10 can be reduced.

In addition, one pipe portion protrusion 503 is formed with respect to the pipe portion 511. Two pipe portion protrusions 503 are formed with respect to the pipe portion 512 so as to sandwich the pipe portion 512 in between. Two pipe portion protrusions 503 are formed with respect to the pipe portion 513 so as to sandwich the pipe portion 513 between them (see FIG. 50).

Since it is only necessary to limit the position of the end portion of the hose in the pipe portion 511, only one pipe portion protrusion 503 is formed in the pipe portion 511. By forming only one pipe portion protrusion 503 on the pipe portion 511, the material cost can be reduced. In another embodiment, two pipe portion protrusions 503 may be formed on the pipe portion 511.

<5-12>
As shown in FIG. 50, the pipe member 50 has a plurality of pipe portions (511 to 514) and a pipe connecting portion 52 for connecting the portions of the plurality of pipe portions (511 to 514) on the housing body 21 side. ing.

Therefore, the number of member points can be reduced, and by arranging the gasket 509 between the pipe connecting portion 52 and the housing main body 21, the sealing property between the pipe member 50 and the housing main body 21 can be ensured.

As shown in FIG. 50, the pipe connecting portion 52 is formed on the seal unit 35 side with respect to the pipe portion protrusions 503 formed on the pipe portions 511 to 513. Further, the outer edge portion of the pipe connecting portion 52 is formed so as to extend radially outward of the end portion of the pipe portions 511 to 514 on the pipe mounting surface 202 side (see FIGS. 47 and 50).

<5-13>
As shown in FIG. 42, the housing 20 has a housing opening 210 that connects the internal space 200 and the outside of the housing body 21, and a cylindrical housing that is connected to the housing opening 210 at one end to form the internal space 200. It has an inner wall 211. The valve 30 has a shaft 32 provided on the rotating shaft Axr1.

The valve device 10 is formed in the partition wall body 61 provided in the housing opening 210 so as to separate the internal space 200 from the outside of the housing body 21, and in the partition wall body 61 so that one end of the shaft 32 can be inserted. A partition wall portion 60 having a shaft insertion hole 62 is provided.

The inner diameter of the housing opening 210 is larger than the inner diameter of the end of the housing inner wall 211 opposite to the housing opening 210.

Therefore, the flow path area on the housing opening 210 side of the internal space 200 can be increased. This makes it possible to increase the flow rate of the cooling water flowing to the outlet port 221 (radiator 5) side formed on the housing opening 210 side in particular.

<5-13-1>
As shown in FIG. 42, an annular seal member 600 provided between the housing opening 210 and the partition main body 61 of the partition 60 and capable of liquidally holding between the housing opening 210 and the partition 60 is provided. I have.

Therefore, if the inner diameter of the housing opening 210 is formed to be constant, an annular seal member 600 having a standard shape having a constant inner diameter and outer diameter can be adopted, and the cost can be reduced.

<5-14>
As shown in FIG. 42, the housing inner wall 211 is formed in a tapered shape so that the inner diameter becomes smaller from the housing opening 210 side toward the side opposite to the housing opening 210.

Therefore, the flow path area of the internal space 200 can be gradually increased toward the housing opening 210 side. Further, since the step is not formed on the inner wall 211 of the housing, the water flow resistance in the internal space 200 can be reduced.

<5-15>
As shown in FIG. 47, at least two of the plurality of ports formed on the housing main body 21 (exit ports 221 to 223) are formed so as to be arranged in a direction parallel to the mounting surface 201.

Therefore, the size in the direction perpendicular to the mounting surface 201 of the housing body 21 can be reduced, and the physique of the valve device 10 can be reduced.

<5-16>
As shown in FIG. 49, the pipe fastening member 540 is a tapping screw that can be screwed into the fastening holes 261 to 266 on the housing side while being screwed.

Therefore, it is not necessary to insert-mold a metal member or the like having a screw groove into the housing-side fixing portions 251 to 256. Further, since the gap between housings Sh1 is formed between the housing-side fixing portions 251 to 256 and the outer wall of the housing main body 21, the housing side when the pipe fastening member 540 is screwed into the housing-side fastening holes 261 to 266. Even if the fixing portions 251 to 256 are cracked, it is possible to prevent the cracking from reaching the housing body 21.

<6-1> Bulkhead through hole As shown in FIG. 52, the bulkhead portion 60 has a bulkhead through hole 65 extending outward from the shaft insertion hole 62 and opening to the outer wall of the bulkhead portion main body 61.

<6-1>
As described above, the present embodiment is a valve device 10 capable of controlling the cooling water of the engine 2 of the vehicle 1, and includes a housing 20, a valve 30, a partition wall portion 60, and a drive portion 70.

The housing 20 includes a housing body 21 that forms an internal space 200 inside, a port (220, 221, 222, 223) that connects the internal space 200 and the outside of the housing body 21, and an internal space 200 and the housing body 21. It has a housing opening 210 that connects to the outside.

The valve 30 connects a valve body 31 that can rotate around the rotation axis Axr1 in the internal space 200, a valve body flow path 300 formed inside the valve body 31, a valve body flow path 300, and the outside of the valve body 31. It has a valve body opening (410, 420, 430) and a shaft 32 provided on the rotation shaft Axr1, and the valve body 31 is in a state of communication between the valve body flow path 300 and the port via the valve body opening. It can be changed by the rotation position of.

The partition wall 60 is formed in the partition wall body 61 provided in the housing opening 210 so as to separate the internal space 200 from the outside of the housing body 21, and in the partition wall body 61 so that one end of the shaft 32 can be inserted. It has a shaft insertion hole 62.

The drive portion 70 is provided on the side opposite to the internal space 200 with respect to the partition wall portion 60, and can rotationally drive the valve body 31 via one end of the shaft 32.

The partition wall portion 60 has a partition wall through hole 65 extending outward from the shaft insertion hole 62 and opening to the outer wall of the partition wall portion main body 61.

Therefore, the cooling water flowing from the internal space 200 through the shaft insertion hole 62 toward the drive unit 70 side can flow to the partition wall through hole 65. Thereby, it is possible to suppress the cooling water of the internal space 200 from flowing to the drive unit 70 side.

<6-1-1>
The partition wall through hole 65 is formed so that the cross-sectional shape perpendicular to the axis is oval or rectangular.

Therefore, while reducing the physique of the partition wall main body 61, the influence of the surface tension in the partition wall through hole 65 can be suppressed, and the cooling water can easily flow in the partition wall through hole 65.

The partition wall through hole 65 is formed so that the lateral direction of the cross section is parallel to the axis Axh1 of the shaft insertion hole 62. Therefore, the physique of the partition wall main body 61 in the axis Axh1 direction can be reduced.

<6-2>
As shown in FIG. 52, the housing 20 extends outward from the inner wall of the housing opening 210 and opens into the outer wall of the housing body 21 and has a housing through hole 270 formed so as to communicate with the partition through hole 65. There is. The housing through hole 270 is opened at the end surface of the housing body 21 opposite to the pipe mounting surface 202.

Therefore, the cooling water that has flowed to the partition wall through hole 65 can be discharged to the outside from the housing through hole 270. Further, the double structure of the partition wall through hole 65 and the housing through hole 270 can suppress the intrusion of water from the outside.

Here, when the amount of cooling water flowing from the internal space 200 to the drive unit 70 side is large, the cooling water can be discharged to the outside via the partition wall through hole 65 and the housing through hole 270, and the cooling water in the shaft insertion hole 62 can be discharged to the outside. The leak can be noticed by the user. This makes it possible for the user to deal with any leaks that need to be dealt with.

On the other hand, when the amount of cooling water flowing from the internal space 200 to the drive unit 70 side is small, the cooling water can be retained in the partition wall through hole 65 and the housing through hole 270, and the cooling water leaks in the shaft insertion hole 62. It can be hidden from the user. As a result, it is possible to suppress the user from dealing with leaks that do not need to be dealt with.

<6-2-1>
The housing through hole 270 is formed so that the cross-sectional shape perpendicular to the axis is oval or rectangular.

Therefore, it is possible to suppress the influence of surface tension in the housing through hole 270 and facilitate the flow of cooling water in the housing through hole 270 while reducing the physique of the housing main body 21.

The housing through hole 270 is formed so that the lateral direction of the cross section is parallel to the axis Axh1 of the shaft insertion hole 62. Therefore, the physique of the housing body 21 in the axis Axh1 direction can be reduced.

<6-2-2>
As shown in FIG. 52, the partition wall through hole 65 and the housing through hole 270 are formed coaxially.

Therefore, the cooling water that has flowed into the partition wall through hole 65 can be easily discharged to the outside from the housing through hole 270.

<6-3>
As shown in FIG. 52, the valve device 10 includes a shaft seal member 603 and an annular seal member 600. The shaft seal member 603 is formed in an annular shape mainly from an elastic member such as rubber, and is provided between the shaft 32 and the shaft insertion hole 62 on the internal space 200 side with respect to the partition wall through hole 65, and is provided between the shaft 32 and the shaft insertion hole 62. It can be held liquidtightly between the hole 62 and the hole 62.

The annular seal member 600 is formed in an annular shape by, for example, an elastic member such as rubber, and is provided between the partition wall main body 61 and the inner wall of the housing opening 210 on the internal space 200 side with respect to the housing through hole 270. The space between the 61 and the inner wall of the housing opening 210 can be held liquidtightly. Here, the shaft seal member 603 and the annular seal member 600 correspond to the "first seal member" and the "second seal member", respectively.

Therefore, the shaft seal member 603 can suppress leakage of cooling water from the internal space 200 to the drive unit 70 side via the shaft insertion hole 62. Further, the annular seal member 600 can suppress leakage of cooling water from the internal space 200 to the outside via between the partition wall main body 61 and the housing opening 210.

Further, since the shaft seal member 603 is provided at a position separated from the partition wall through hole 65 on the internal space 200 side by a predetermined distance, a space can be formed between the partition wall through hole 65 and the shaft seal member 603. Therefore, when the leakage of the cooling water is small, the cooling water can be kept in the space so as not to be noticed by the user.

Further, since the annular seal member 600 is provided at a position separated from the housing through hole 270 toward the internal space 200 by a predetermined distance, a space can be formed between the housing through hole 270 and the annular seal member 600. Therefore, when the leakage of the cooling water is small, the cooling water can be kept in the space so as not to be noticed by the user.

<6-4>
As shown in FIG. 52, the distance Ds1 between the shaft seal member 603 and the partition wall through hole 65 is shorter than the distance Ds2 between the annular seal member 600 and the housing through hole 270.

Therefore, the space formed between the housing through hole 270 and the annular seal member 600 can be made larger than the space formed between the partition wall through hole 65 and the shaft seal member 603. As a result, more cooling water can be retained on the space side formed between the housing through hole 270 and the annular seal member 600.

<6-5>
As shown in FIG. 52, the partition wall portion 60 has a partition wall inner step surface 661 that forms a step between the partition wall through hole 65 of the shaft insertion hole 62 and the shaft seal member 603. Here, the partition wall inner step surface 661 is formed in an annular planar shape so as to face the internal space 200 side. The shaft seal member 603 is provided so as to be able to come into contact with the stepped surface 661 inside the partition wall.

The housing 20 has a housing step surface 281 that forms a step between the housing through hole 270 on the inner wall of the housing opening 210 and the annular seal member 600. Here, the housing step surface 281 is formed in an annular shape so as to face the drive unit 70 side.

Therefore, when the leakage of the cooling water is small, the cooling water can be kept on the stepped surface 661 inside the partition wall and the stepped surface 281 of the housing so that the user does not notice a small amount of leakage.

Further, even if water or the like invades from the outside through the housing through hole 270, by retaining the water or the like on the partition wall inner step surface 661 and the housing step surface 281, the water or the like can be applied to the shaft seal member 603 and the annular seal. It is possible to suppress the flow to the member 600.

<6-6>
As shown in FIG. 52, the housing stepped surface 281 is formed in a tapered shape so that the inner diameter increases from the internal space 200 side toward the drive unit 70 side.

Therefore, the space formed between the housing through hole 270 and the annular seal member 600 can be increased, and a large amount of cooling water can be retained in the space.

The housing 20 has a housing step surface 282 that forms a step on the drive portion 70 side of the housing through hole 270 in the inner wall of the housing opening 210. The housing step surface 282 is formed in an annular shape so as to face the drive unit 70 side.

Further, the partition wall portion 60 has a partition wall outer step surface 671 that forms a step on the drive portion 70 side of the partition wall through hole 65 on the outer wall of the partition wall portion main body 61. The partition wall outer step surface 671 is formed in an annular shape so as to face the internal space 200 and the housing step surfaces 281 and 282.

As shown in FIG. 52, a substantially cylindrical tubular space St1 is formed between the housing stepped surface 281 and the partition wall outer stepped surface 671 between the outer wall of the partition wall main body 61 and the inner wall of the housing opening 210. Has been done. The partition wall through hole 65 and the housing through hole 270 communicate with each other via the cylindrical space St1.

When the leakage of the cooling water is small, the cooling water can be retained in the tubular space St1.

As shown in FIG. 52, the housing step surface 281, the housing through hole 270, and the housing step surface 282 are formed in the housing opening 210 in this order from the internal space 200 side toward the drive portion 70 side. .. The annular seal member 600 is directed toward the internal space 200 with respect to the step surface 281 of the housing.

As shown in FIG. 52, the inner edge of the partition wall through hole 65 opposite to the shaft 32 is chamfered in a tapered shape. As a result, the cooling water inside the partition wall through hole 65 can be easily discharged.

<6-8>
As shown in FIG. 52, in a state where the housing 20 is attached to the engine 2, the partition wall through hole 65 is located on the lower side in the vertical direction with respect to the shaft 32.

Therefore, when there are many leaks of the cooling water, the cooling water can be quickly flowed to the partition wall through hole 65.

<6-9>
As shown in FIG. 52, when the housing 20 is attached to the engine 2, the housing through hole 270 is located on the lower side in the vertical direction with respect to the shaft 32.

Therefore, when there are many leaks of the cooling water, the cooling water can be quickly discharged to the outside from the housing through hole 270.

<6-10>
As shown in FIG. 52, the partition wall through hole 65 and the housing through hole 270 have different cross-sectional areas in the cross section perpendicular to the axis. Here, the cross-sectional area of the housing through hole 270 is larger than the cross-sectional area of the partition wall through hole 65.

Therefore, even if the housing body 21 and the partition wall portion 60 are displaced from each other, communication between the partition wall through hole 65 and the housing through hole 270 can be ensured. Further, since the cross-sectional area of the housing through hole 270 is larger than the cross-sectional area of the partition wall through hole 65, the cooling water can be quickly discharged from the housing through hole 270 to the outside. Further, it is possible to prevent water or the like from entering the shaft insertion hole 62 side from the outside via the housing through hole 270 and the partition wall through hole 65.

<6-18>
As shown in FIG. 52, the partition wall through hole 65 is located below the shaft 32 when the housing 20 is attached to the engine 2.

Therefore, when there are many leaks of the cooling water, the cooling water can be quickly flowed to the partition wall through hole 65.

<6-19>
As shown in FIG. 52, the housing through hole 270 is located below the shaft 32 when the housing 20 is attached to the engine 2.

Therefore, when there are many leaks of the cooling water, the cooling water can be quickly discharged to the outside from the housing through hole 270.

Here, the lower side of the shaft 32 is, for example, below the horizontal plane including the axis Axs1 of the shaft 32, and includes not only directly below the shaft 32 in the vertical direction but also a predetermined range below the shaft 32. Means.

<6-20>
Assuming that the direction directly below the axis Axs1 of the shaft 32 is 0 degrees, the partition wall through hole 65 is formed in the range of 0 to 80 degrees in the circumferential direction of the shaft 32. In the present embodiment, the partition wall through hole 65 is formed so as to extend in the direction of 0 degrees from the shaft 32 side. Therefore, when there are many leaks of the cooling water, the cooling water can be discharged quickly.

The partition wall through hole 65 may be formed in a range of 30 to 80 degrees in the circumferential direction of the shaft 32. In this case, the angle of the partition wall through hole 65 becomes gentle to some extent, and the cooling water can be discharged so as to bleed. Therefore, even if the cooling water leaks carelessly and a problem occurs, it is possible to avoid a situation in which the user reacts more sensitively to the abnormality than necessary.

<6-21>
Assuming that the direction directly below the axis Axs1 of the shaft 32 is 0 degrees, the housing through hole 270 is formed in the range of 0 to 80 degrees in the circumferential direction of the shaft 32. In the present embodiment, the housing through hole 270 is formed so as to extend in the direction of 0 degrees from the shaft 32 side. Therefore, when there are many leaks of the cooling water, the cooling water can be discharged quickly.

The housing through hole 270 may be formed in the range of 30 to 80 degrees in the circumferential direction of the shaft 32, similarly to the partition wall through hole 65. In this case, the angle of the housing through hole 270 becomes gentle to some extent, and the cooling water can be discharged so as to bleed. Therefore, even if the cooling water leaks carelessly and a problem occurs, it is possible to avoid a situation in which the user reacts more sensitively to the abnormality than necessary.

(7th Embodiment)
FIG. 53 shows a part of the valve device according to the seventh embodiment.

<6-5>
As shown in FIG. 53, the partition wall portion 60 has a partition wall inner step surface 662 that forms a step between the partition wall through hole 65 of the shaft insertion hole 62 and the shaft seal member 603. Here, the partition wall inner step surface 662 is formed in an annular planar shape so as to face the internal space 200 side. The partition wall inner step surface 662 is formed on the partition wall through hole 65 side with respect to the partition wall inner step surface 661.

Therefore, a space can be formed between the partition wall inner step surface 662 and the shaft seal member 603. As a result, when there is little leakage of cooling water, it is possible to keep the cooling water in the space so that the user does not notice a small amount of leakage.

Further, even if water or the like invades from the outside through the housing through hole 270, by retaining the water or the like in the space, it is possible to suppress the water or the like from flowing to the shaft seal member 603.

The housing step surface 281 is formed in an annular shape so as to face the internal space 200 side. The partition wall outer step surface 671 is formed in an annular shape between the housing step surface 281 and the annular seal member 600 so as to face the drive portion 70 and the housing step surface 281 side. Here, the partition wall outer step surface 671 and the housing step surface 281 are separated from each other by a predetermined distance while facing each other. Therefore, a labyrinth-shaped passage P1 is formed between the annular seal member 600 and the housing through hole 270 between the outer wall of the partition wall main body 61 and the inner wall of the housing opening 210.

Therefore, even if water or the like invades from the outside through the housing through hole 270, by retaining the water or the like in the passage P1, it is possible to suppress the water or the like from flowing to the annular seal member 600.

As shown in FIG. 53, in the radial direction of the housing opening 210, the height Hp1 of the portion of the labyrinth-shaped passage P1 on the drive portion 70 side is smaller than the height Hp2 of the portion of the passage P1 on the internal space 200 side. Therefore, when viewed from the housing through hole 270 side, the passage P1 changes from a narrow portion to a wide portion. Therefore, the narrow portion of the passage P1 makes it difficult for water to flow from the housing through hole 270 side to the annular seal member 600 side. Further, the narrow portion of the passage P1 makes it difficult for water to flow from the internal space 200 side to the housing through hole 270 side.

(8th Embodiment)
FIG. 54 shows a part of the valve device according to the eighth embodiment. The eighth embodiment is different from the sixth embodiment in the position of the housing through hole 270 and the like.

<6-11>
As shown in FIG. 54, the partition wall through hole 65 and the housing through hole 270 have different axial positions from each other in the axial (Axh1) direction of the shaft insertion hole 62. Here, the housing through hole 270 is formed on the drive portion 70 side with respect to the partition wall through hole 65.

Therefore, even if water or the like enters from the outside through the housing through hole 270, it is possible to suppress the water or the like from flowing to the shaft insertion hole 62 side via the partition wall through hole 65.

<6-11-1>
As shown in FIG. 54, where L is the distance between the axis of the partition wall through hole 65 and the axis of the housing through hole 270, and D is the size of the housing through hole 270 in the axis (Axh1) direction of the shaft insertion hole 62, the partition wall is used. The through hole 65 and the housing through hole 270 are formed so as to satisfy the relationship of D ≦ L ≦ 10D.

Therefore, even if water or the like enters from the outside through the housing through hole 270, it is possible to more effectively suppress the water or the like from flowing to the shaft insertion hole 62 side via the partition wall through hole 65.

<6-12>
As shown in FIG. 54, the partition wall portion 60 has a partition wall outer step surface 671 that forms a step between the partition wall through hole 65 on the outer wall of the partition wall portion main body 61 and the housing through hole 270.

Therefore, even if water or the like enters from the outside via the housing through hole 270, by retaining the water or the like on the partition wall outer step surface 671, the water or the like enters the shaft insertion hole 62 side via the partition wall through hole 65. Etc. can be suppressed from flowing.

As shown in FIG. 54, the housing through hole 270 is formed on the drive portion 70 side with respect to the housing step surface 282 and the partition wall outer step surface 671. Here, the partition wall outer step surface 671 and the housing step surface 282 are separated from each other by a predetermined distance while facing each other. Therefore, a labyrinth-shaped passage P2 is formed between the housing through hole 270 and the partition wall through hole 65 between the outer wall of the partition wall main body 61 and the inner wall of the housing opening 210.

Therefore, even if water or the like invades from the outside through the housing through hole 270, by retaining the water or the like in the passage P2, the water or the like flows to the shaft insertion hole 62 side via the partition wall through hole 65. Can be suppressed.

As shown in FIG. 54, in the radial direction of the housing opening 210, the height Hp1 of the portion of the labyrinth-shaped passage P2 on the drive portion 70 side is smaller than the height Hp2 of the portion of the passage P2 on the internal space 200 side. Therefore, when viewed from the housing through hole 270 side, the passage P2 changes from a narrow portion to a wide portion. Therefore, due to the narrow portion of the passage P2, it becomes difficult for water to flow from the housing through hole 270 side to the partition wall through hole 65 side. Further, the narrow portion of the passage P2 makes it difficult for water to flow from the partition wall through hole 65 side to the housing through hole 270 side.

In another embodiment, in the radial direction of the housing opening 210, the height Hp1 of the portion of the labyrinth-shaped passage P2 on the drive portion 70 side may be larger than the height Hp2 of the portion of the passage P2 on the internal space 200 side. good. In this case, when viewed from the housing through hole 270 side, the passage P2 changes from a wide portion to a narrow portion. Therefore, the external water that has entered from the housing through hole 270 is trapped in the narrow portion of the passage P2, and it becomes difficult for the water to flow to the partition wall through hole 65 side. On the other hand, the water on the partition wall through hole 65 side easily flows to the housing through hole 270 side via the passage P2.

(9th Embodiment)
FIG. 55 shows a part of the valve device according to the ninth embodiment.

<6-13>
As shown in FIG. 55, the valve device 10 includes a bearing portion 602. The bearing portion 602 is provided on the drive portion 70 side with respect to the partition wall through hole 65 of the shaft insertion hole 62, and bearings one end of the shaft 32.

Therefore, by flowing the cooling water flowing from the internal space 200 to the drive portion 70 side to the partition wall through hole 65, it is possible to suppress the cooling water from flowing to the bearing portion 602.

<6-14>
As shown in FIG. 55, the shaft insertion hole 62 includes a small diameter portion 621 provided with a bearing portion 602 inside, a large diameter portion 622 having a larger inner diameter than the small diameter portion 621 and the partition wall through hole 65 opening, and a small diameter portion 621. It has a stepped surface 623 in the insertion hole formed between the large diameter portion 622 and the large diameter portion 622.

The stepped surface 623 in the insertion hole is formed in an annular shape so as to face the internal space 200 side. As shown in FIG. 55, a substantially cylindrical tubular space St2 is formed between the shaft seal member 603 and the bearing portion 602 on the radial outer side of the shaft 32. The partition wall through hole 65 is connected to the cylindrical space St2.

Therefore, by keeping the cooling water flowing from the internal space 200 to the drive unit 70 side in the tubular space St2, it is possible to suppress the cooling water from flowing to the bearing unit 602. Further, even if water or the like invades from the outside through the housing through hole 270, by keeping the water or the like in the cylindrical space St2, it is possible to suppress the water or the like from flowing to the bearing portion 602.

(10th Embodiment)
A part of the valve device according to the tenth embodiment is shown in FIGS. 56 and 57.

<6-15>
As shown in FIGS. 56 and 57, the partition wall through hole 65 is formed with a step surface 651 in the partition wall through hole that forms a step between one end and the other end of the partition wall through hole 65.

The stepped surface 651 in the partition wall through hole is formed so as to face downward in the vertical direction when the valve device 10 is attached to the engine 2. Therefore, the cross-sectional area of the partition wall through hole 65 on the lower side in the vertical direction is larger than the cross-sectional area on the upper side in the vertical direction.

Therefore, even if water or the like invades from the outside through the housing through hole 270, by keeping the water or the like on the stepped surface 651 in the partition wall through hole, it is possible to suppress the water or the like from flowing to the shaft insertion hole 62. ..

(11th Embodiment)
FIG. 58 shows a part of the valve device according to the eleventh embodiment.

<6-15>
As shown in FIG. 58, the stepped surface 651 in the partition wall through hole is formed so as to face upward in the vertical direction when the valve device 10 is attached to the engine 2. Therefore, the cross-sectional area of the partition wall through hole 65 on the upper side in the vertical direction is larger than the cross-sectional area on the lower side in the vertical direction.

Therefore, when the leakage of the cooling water is small, the cooling water can be kept on the stepped surface 651 in the partition wall through hole so that the user does not notice a small amount of leakage.

(12th Embodiment)
FIG. 59 shows a part of the valve device according to the twelfth embodiment.

<6-16>
As shown in FIG. 59, the partition wall through hole 65 and the housing through hole 270 are formed so that their respective axes are not orthogonal to the axis Axh1 of the shaft insertion hole 62.

Therefore, even if water or the like enters from the outside via the housing through hole 270, it is possible to suppress the water or the like from flowing to the shaft insertion hole 62 via the partition wall through hole 65.

The partition wall through hole 65 and the housing through hole 270 are formed so that their axes intersect with each other.

(13th Embodiment)
FIG. 60 shows a part of the valve device according to the thirteenth embodiment.

<6-17>
As shown in FIG. 60, the partition wall through hole 65 is formed so that its cross-sectional area gradually increases from the radial inside to the radial outside of the shaft insertion hole 62.

Therefore, when there is a large amount of leakage of the cooling water, the cooling water can be quickly discharged from the housing through hole 270 to the outside via the partition wall through hole 65.

(14th Embodiment)
The valve device according to the 14th embodiment is shown in FIGS. 61 to 77.

In this embodiment, the shapes of the housing 20, the valve 30, the pipe member 50, the drive unit cover 80, and the like are different from those in the first embodiment.

As shown in FIG. 61, in the valve device 10 of the present embodiment, the drive unit cover 80 is provided on the lower side in the vertical direction with respect to the housing main body 21 and the mounting surface 201 is provided in the narrow space A1 so as to face the engine 2.

As shown in FIG. 65, the base of one side h11 of the two sides (h11, h12) of the substantially triangular shape of the fastening portion 231 when viewed from the direction perpendicular to the mounting surface 201 is in the longitudinal direction of the housing body 21. As you can see, it is formed at a position overlapping the inlet port 220. Further, the base of one side h21 of the two sides (h21, h22) of the fastening portion 232 is formed at a position overlapping with the inlet port 220 when viewed in the longitudinal direction of the housing main body 21.

That is, one of the start positions of the fastening portions (231, 232) of the two fastening holes (241 and 242) closest to the inlet port 220 is formed at a position overlapping the inlet port 220 when viewed in the longitudinal direction of the housing body 21. Has been done.

Therefore, the housing body 21 can be stably fixed to the engine 2.

The base of one side h32 of the two sides (h31, h32) of the fastening portion 233 is formed at a position not overlapping with the inlet port 220 when viewed in the longitudinal direction of the housing main body 21.

That is, one of the starting positions of the fastening portion (233) of the fastening hole (243) farthest from the inlet port 220 is formed at a position that does not overlap with the inlet port 220 when viewed in the longitudinal direction of the housing body 21.

As shown in FIG. 65, the other two fastening portions (232, 233) are contained in the region R1 surrounded by the side straight lines Lth11 and Lth12, which are straight lines along the two sides (h11, h12) of the fastening portion 231. Fastening holes (242, 243) are present.

As shown in FIG. 65, the side straight line Lth11 which is a straight line along the side h11 of the fastening portion 231, the side straight line Lth21 which is a straight line along the side h21 of the fastening portion 232, and the side straight line which is a straight line along the side h32 of the fastening portion 233. Lth 32 intersects the inlet port 220.

That is, when the sides h11, side h21, and side h32 of the fastening portions 231 to 233 are extended in each of the fastening holes 241 to 243, they intersect with the inlet port 220.

As shown in FIG. 65, the side h32 on the inlet port 220 side of the fastening portion 233 of the fastening hole (243) farthest from the inlet port 220 is compared with the other sides (h11, h12, h21, h22, h31). The inclination angle of the housing body 21 with respect to the longitudinal direction is the smallest.

As shown in FIG. 65, the positioning portion 205 is formed on an extension line of the side h12 of the fastening portion 231. Further, the positioning portion 206 is formed on an extension line of the side h22 of the fastening portion 232.

That is, the positioning portion (205, 206) capable of positioning the housing body 21 by engaging with another member is formed on an extension of the side (h12, h22) of the fastening portion (231, 232).

<2-12>
As shown in FIGS. 79 to 82, the holding member 73 has one snap-fit portion 731. As shown in FIGS. 79 and 80, the holding member 73 is formed so that the snap-fit portion 731 is located radially outside the worm gear 712.

Therefore, as compared with the holding member 73 (see FIGS. 87 to 89) of the first embodiment in which two snap-fit portions 731 are formed on both sides of the motor main body 710, the direction perpendicular to the axis Axm1 of the motor 71, that is, mounting. The physique of the holding member 73 in the direction Dv1 perpendicular to the surface 201 can be reduced. Therefore, the physique of the drive unit cover 80 and the valve device 10 in the direction Dv1 perpendicular to the mounting surface 201 can be reduced.

Further, as compared with the first embodiment (see FIG. 87) in which two snap-fit portions 731 are formed on both sides of the motor main body 710, the motor 71 can be brought closer to the mounting surface 201, that is, the engine 2, so that the motor can be brought closer to the motor. The vibration applied to the 71 is reduced, and the robustness against disconnection can be improved.

As shown in FIGS. 61 to 65, the pipe portion 512 of the pipe member 50 is formed so as to extend while being inclined toward the drive portion cover 80.

<2-13>
As shown in FIG. 67, the holding member 73 is formed so that the snap-fit portion 731 is located on the pipe member 50 side with respect to the rotation axis Axr1.

Therefore, the physique of the drive unit cover 80 in the direction Dv1 perpendicular to the mounting surface 201 can be reduced, and the drive unit cover 80 can be prevented from interfering with the pipe member 50, particularly the pipe unit 512.

In another embodiment, the snap-fit portion 731 may be formed so as to be located between the third gear 723 and the motor-side terminal 713 (see FIGS. 80 and 83).

Even in this case, as compared with the holding member 73 (see FIGS. 87 to 89) of the first embodiment in which two snap-fit portions 731 are formed on both sides of the motor main body 710, the direction perpendicular to the axis Axm1 of the motor 71, that is, The physique of the holding member 73 in the direction Dv1 perpendicular to the mounting surface 201 can be reduced.

90 to 102 show the valve 30 of this embodiment and a part thereof.

The valve 30 of the present embodiment has a valve body 31 having a shape and the like similar to those of the first and third embodiments. The valve 30 of the present embodiment is the same as the first embodiment, except that the arrangement direction of the ball valve 41, the tubular connection portion 44, the ball valve 42, the tubular valve connection portion 45, and the ball valve 43 is different from that of the third embodiment. be. That is, the valve 30 of the present embodiment has a ball valve 41, a tubular connection portion 44, a ball valve 42, and a tubular valve connection portion from the side opposite to the drive portion 70 in the rotation shaft Axr1 direction toward the drive portion 70 side. It is formed so that 45 and the ball valve 43 are arranged in this order. The ball valves 41, 42, and 43 are provided so that the outlet ports 221, 222, and 223 can be opened and closed, respectively (see FIG. 67).

As shown in FIGS. 93, 94 and the like, the valve body opening 410 of the ball valve 41 has a large opening 412 and an extension opening 413. The large opening 412 is formed so as to extend from one end of the first division 33 in the circumferential direction toward the other end. The stretched opening 413 is formed so as to extend from the other end of the large opening 412 to the vicinity of the other end in the circumferential direction of the first divided body 33. The size of the stretched opening 413 in the rotation axis Axr1 direction is smaller than the size of the large opening 412 in the rotation axis Axr1 direction. The opening area of the valve body opening 410 is the total area of the opening area of the large opening 412 and the opening area of the extended opening 413.

Since the valve body opening 410 has the extension opening 413, the flow rate of the cooling water to the radiator 5 can be gradually increased at the initial stage of opening the valve of the outlet port 221. As a result, it is possible to suppress a sudden temperature change of the cooling water due to heat exchange of the radiator 5.

In this embodiment, only the valve body opening 410 has an extension opening 413. On the other hand, in another embodiment, the valve body openings 420 and 430 may be provided with the same openings as the stretched openings 413. In this case, it is possible to suppress a sudden temperature change of the cooling water due to heat exchange between the heater 6 and the device 7.

<3-29>
The size of the valve body opening 410 of the ball valve 41 as the first ball valve is the size of the valve body opening 420 of the ball valve 42 as the second ball valve, and the size of the ball valve 43 as the third ball valve. It is larger than the size of the valve body opening 430.

That is, the valve body openings 420 and 430 of the ball valves 42 and 43 formed so that the two ball valves are continuous are small, and the valve body opening 410 of the ball valve 41 formed as one ball valve is the largest.

Cooling water from the inlet port 220 flows into the valve-to-valve space 400 between the ball valves 42 and 43 and the ball valve 41. After that, the cooling water is distributed to the ball valve 42, 43 side and the ball valve 41 side. Here, if the amount of cooling water required on the ball valve 42, 43 side and the ball valve 41 side is uneven, the cooling water cannot be distributed properly, so that the valve body opening 410 having the largest opening is formed. Since the ball valve 41 requires a large amount of cooling water, it is not continuous with the ball valves 42 and 43 in which the valve body openings 420 and 430 having other small openings are formed. That is, if the number of ball valves is two, cooling water for the openings of the two ball valves is required. Therefore, the ball valves (42, 43) having small openings are connected to each other as much as possible.

<4-4>
As shown in FIG. 62, the housing 20 has a housing side cover fixing portion (291 to 296) formed as a portion different from the housing main body 21 so as to project from the outer wall of the housing main body 21.

The drive unit cover 80 is formed as a portion different from the cover body 81 forming the drive unit space 800 and the cover body 81 so as to project from the outer wall of the cover body 81, and is fixed to the housing side cover fixing portions (291 to 296). It has a cover fixing portion (821 to 826) to be formed.

The cover fixing portions (821 to 826) are formed so as not to protrude outward from at least one of both end portions (215, 216) of the direction Dp1 parallel to the mounting surface 201 of the housing main body 21. In the present embodiment, the cover fixing portions (821 to 826) are formed so as not to protrude outward from both end portions (215, 216) of the direction Dp1 parallel to the mounting surface 201 of the housing main body 21. Here, the housing end portions 215 and 216, which are both ends of the direction Dp1 parallel to the mounting surface 201 of the housing main body 21, are formed on the housing main body 21 as portions different from the housing side cover fixing portions 291 to 296.

Therefore, the physique of the direction Dp1 parallel to the mounting surface 201 of the drive unit cover 80 can be reduced, and the physique of the direction Dp1 parallel to the mounting surface 201 of the valve device 10 can be reduced. As a result, the valve device 10 can be mounted in the narrow space A1 of the vehicle 1.

In the present embodiment, the direction Dp1 parallel to the mounting surface 201 is a direction perpendicular to the vertical direction, that is, a direction parallel to the horizontal direction. Further, the direction Dp1 parallel to the mounting surface 201 is perpendicular to the direction Dv1 perpendicular to the mounting surface 201.

<4-5>
As shown in FIG. 62, in a state where the housing main body 21 is attached to the engine 2, the cover fixing portions 821 to 826 have both ends (215, 216) in the direction Dp1 parallel to the mounting surface 201 of the housing main body 21 and in the horizontal direction. ), It is formed so as not to protrude outward from at least one of them. In the present embodiment, the cover fixing portions 821 to 826 are formed so as not to protrude outward from both ends (215, 216) in the horizontal direction and in the direction Dp1 parallel to the mounting surface 201 of the housing main body 21. That is, the cover fixing portions 821 to 826 are formed so as not to protrude from the housing end portions 215 and 216 with respect to the direction Dp1 parallel to the mounting surface 201 which is the thinnest direction of the housing main body 21.

Therefore, the physique in the direction Dp1 parallel to the mounting surface 201 of the drive unit cover 80 and the horizontal direction can be reduced, and the physique in the direction Dp1 parallel to the mounting surface 201 of the valve device 10 and the physique in the horizontal direction can be reduced. As a result, the valve device 10 can be mounted in a narrow space A1 having a direction Dp1 parallel to the mounting surface 201 and a narrow space A1 in the horizontal direction.

In the present embodiment, since the valve device 10 is provided in the narrow space A1 (see FIGS. 2 and 62) between the alternator 12 and the intake manifold 11, the physique of the direction Dp1 parallel to the mounting surface 201 of the valve device 10 is reduced. By doing so, the valve device 10 can be provided in the narrow space A1 without interfering with the alternator 12 and the intake manifold 11.

<7-1> Housing side cover fixing portion This embodiment is a valve device 10 capable of controlling cooling water of the engine 2 of the vehicle 1, and is a housing 20, a valve 30, a pipe member 50, a partition wall portion 60, and a drive portion. It includes a cover 80, a drive unit 70, and a fixing member 830.

As shown in FIGS. 61, 62, 64 to 68, and 73 to 78, the housing 20 has a housing body 21 that forms an internal space 200 inside, and a port (220,) that connects the internal space 200 and the outside of the housing body 21. 221 and 222, 223, 224), formed on the housing side cover fixing portions 291 to 296 and the housing side cover fixing portions 291 to 296 formed as different parts from the housing main body 21 so as to protrude from the outer wall of the housing main body 21. It has a housing-side cover fastening hole 290.

The valve 30 has a valve body 31 that can rotate around the rotation axis Axr1 in the internal space 200, and a shaft 32 provided on the rotation axis Axr1, and ports (221, 222, 223) depending on the rotation position of the valve body 31. ) Can be opened and closed.

The pipe member 50 has a tubular pipe portion (511, 512, 513, 514) whose inner space communicates with the port (221, 222, 223, 224), and is attached to the housing main body 21.

The partition wall portion 60 is provided so as to separate the internal space 200 from the outside of the housing main body 21, and has a shaft insertion hole 62 formed so that one end of the shaft 32 can be inserted.

The drive unit cover 80 is provided on the side opposite to the internal space 200 with respect to the partition wall 60, and covers the cover body 81 forming the drive unit space 800 with the partition wall 60 so as to project from the outer wall of the cover body 81. It has cover fixing portions 821 to 826 formed as portions different from the main body 81, and cover fastening holes 831 to 836 formed in cover fixing portions 821 to 826.

The drive unit 70 is provided in the drive unit space 800, and can rotationally drive the valve body 31 via one end of the shaft 32.

The fixing member 830 passes through the cover fastening holes 831 to 836 and is screwed into the housing side cover fastening holes 290 to fix the cover fixing portions 821 to 826 and the housing side cover fixing portions 291 to 296.

The cover fixing portions 291 to 296 on the housing side are covers that project from the outer wall of the housing body 21 to the cover fixing base portion 298 and project from the cover fixing base portion 298 to the cover fixing portions 821 to 826 and are fixed to the cover fixing portions 821 to 826. It has a fixed protrusion 299.

As shown in FIG. 64 and the like, at least a part of the pipe member 50 is located on the side opposite to the cover fixing protrusion 299 with respect to the cover fixing base 298.

In this way, since the cover fixing protrusion 299 is formed so as to protrude from the cover fixing base 298 to the side opposite to the pipe member 50, interference between the housing side cover fixing portions 291 to 296 and the pipe member 50 can be suppressed. , The degree of freedom in mounting the pipe member 50 can be improved. Further, the body shape of the valve device 10 in the direction of the rotation axis Axr1 can be reduced. Therefore, the valve device 10 can be easily mounted in the narrow space A1 of the vehicle 1.

In this embodiment, at least a part of the pipe member 50 is located on the side opposite to the cover fixing protrusion 299 with respect to the cover fixing base 298 of the housing side cover fixing portions 291 to 293 (see FIG. 64 and the like). ).

<7-2>
As shown in FIG. 73 and the like, the cover fixing protrusion 299 forms a cover-to-cover gap Sc1 as a gap between the cover fixing protrusion 299 and the outer wall of the cover main body 81.

Therefore, when the drive unit cover 80 is fastened to the housing 20 by the fixing member 830, even if the cover fixing protrusions 299 of the housing side cover fixing portions 291 to 296 are cracked, the cracks extend to the housing body 21. Can be suppressed. As a result, leakage of cooling water that may occur due to the fastening of the drive unit cover 80 to the housing 20 can be effectively suppressed.

<7-3>
As shown in FIG. 73, the axial length L4 of the housing side cover fastening hole 290 is the axial length L1 of the cover fixing base 298 and the length L2 of the cover fixing protrusion 299 of the housing side cover fastening hole 290. It is shorter than the combined length L3. That is, L4 <L3 = L1 + L2.

Therefore, the strength of the housing side cover fixing portions 291 to 296 can be secured.

<7-4>
As shown in FIG. 73, the axial length L5 of the fixing member 830 inside the housing side cover fastening hole 290 is shorter than the axial length L4 of the housing side cover fastening hole 290. That is, L5 <L4.

Therefore, it is possible to prevent the housing side cover fixing portions 291 to 296 from cracking when the fixing member 830 is screwed into the housing side cover fastening hole 290. Further, since the tip of the fixing member 830 does not protrude to the side opposite to the cover fixing protrusion 299 with respect to the cover fixing base 298, it is possible to suppress the tip of the fixing member 830 from interfering with the pipe member 50.

<7-5>
As shown in FIG. 73, the fixing member 830 is a tapping screw that can be screwed into the housing side cover fastening hole 290 while being screwed.

Therefore, it is not necessary to insert-mold a metal member or the like having a screw groove into the housing side cover fixing portions 291 to 296. Further, since the cover gap Sc1 is formed between the cover fixing protrusions 299 of the housing side cover fixing portions 291 to 296 and the outer wall of the cover main body 81, the fixing member 830 to the housing side cover fastening hole 290 is formed. Even if the housing side cover fixing portions 291 to 296 are cracked during screwing, it is possible to prevent the cracking from reaching the housing body 21.

The axial length L5 of the fixing member 830 inside the housing side cover fastening hole 290 corresponds to the tapping required hanging length of the fixing member 830.

As shown in FIG. 64, the pipe portion 512 is formed so as to extend toward the drive portion cover 80 side. The pipe portion 512 is formed so as to extend to the side where one fastening portion (231) is provided on both sides of the housing main body 21 in the lateral direction. The pipe portion 512 forms an end portion (215, 216) of both ends (215, 216) of the direction Dp1 parallel to the mounting surface 201 of the housing body 21 which is far from the rotation axis Axr1, that is, an internal space 200 of the housing body 21. It is formed so as to extend toward the housing end portion 215, which is an end portion protruding in the direction Dp1 from the outer wall of the portion to be used.

The pipe portion 512 is formed so as to extend from the outlet port 222, which is the middle port of the outlet ports 221, 222, and 223 arranged in a straight line in the housing main body 21. The pipe portion 512 is formed so as to extend from the outlet port 222, which is a port closer to the drive portion cover 80 with respect to the center in the longitudinal direction of the housing main body 21.

The tip of the pipe portion 512 is located on the opposite side of the housing main body 21 from the housing protrusion 219. The tip end side of the pipe portion 512 is located on the side opposite to the cover fixing protrusion 299 with respect to the cover fixing base portion 298 of the housing side cover fixing portion 293.

As shown in FIG. 62, the housing side cover fixing portions 291 to 293 are formed on the pipe member 50 side with respect to the virtual plane Vp6 including the rotation axis Axr1 and parallel to the mounting surface 201. The housing-side cover fixing portions 294 to 296 are formed on the mounting surface 201 side with respect to the virtual plane Vp6.

The housing side cover fixing portions 291 and 296 are formed on the side where the tip portion of the pipe portion 516 is located with respect to the virtual plane Vp7 including the rotation axis Axr1 and perpendicular to the mounting surface 201. The housing side cover fixing portions 292 to 295 are formed on the side where the tip end portion of the pipe portion 512 is located with respect to the virtual plane Vp7.

The cover-to-cover gap Sc1 is formed between the cover fixing protrusions 299 of the housing-side cover fixing portions 291 to 296 formed as described above and the outer wall of the cover main body 81.

<8-1> Foreign matter accumulation portion The present embodiment is a valve device 10 capable of controlling the cooling water of the engine 2 of the vehicle 1, and includes a housing 20, a valve 30, a partition wall portion 60, and a drive portion 70.

The housing 20 includes a housing body 21 that forms an internal space 200 inside, a port (220, 221, 222, 223) that connects the internal space 200 and the outside of the housing body 21, and an internal space 200 and the housing body 21. It has a housing opening 210 that connects to the outside.

The valve 30 has a valve body 31 that can rotate around the rotation axis Axr1 in the internal space 200, and a shaft 32 provided on the rotation axis Axr1, and ports (221, 222, 223) depending on the rotation position of the valve body 31. ) Can be opened and closed.

The partition wall 60 is formed in the partition wall body 61 provided in the housing opening 210 so as to separate the internal space 200 from the outside of the housing body 21, and in the partition wall body 61 so that one end of the shaft 32 can be inserted. It has a shaft insertion hole 62.

The drive portion 70 is provided on the side opposite to the internal space 200 with respect to the partition wall portion 60, and can rotationally drive the valve body 31 via one end of the shaft 32.

As shown in FIG. 69, the valve 30 has a first regulated convex portion 332 and a second regulated convex portion 342 as regulated portions formed on the valve body 31.

As shown in FIGS. 69, 103, 104, the partition wall portion 60 is an annular regulation recess 63 recessed from the surface of the partition wall portion main body 61 on the internal space 200 side to the drive portion 70 side on the radial outer side of the shaft insertion hole 62. The regulation portion 631 which is formed in a part of the circumferential direction of the recess 63 and can regulate the rotation of the valve body 31 by abutting on the first regulation convex portion 332 and the second regulation convex portion 342, and the bottom surface 630 of the regulation recess 63. It has a foreign matter depositing portion 68 that is recessed from the drive portion 70 side.

Therefore, foreign matter existing in the regulation recess 63 and foreign matter accumulated in the bottom surface 630 of the regulation recess 63 can be deposited in the foreign matter accumulation portion 68. As a result, the foreign matter is kept away from the first regulated convex portion 332, the second regulated convex portion 342, and the regulated portion 631 as the regulated portion, and the first regulated convex portion 332, the second regulated convex portion 342 and the regulated portion 631 are formed. It is possible to prevent foreign matter from being caught between the two. Therefore, it is possible to suppress deterioration of the driving accuracy of the valve body 31 due to the accumulation of foreign matter on the regulating portion 631. Further, it is possible to suppress deterioration of the sensor accuracy of the rotation angle sensor 86 due to the accumulation of foreign matter on the regulation unit 631.

<8-2>
As shown in FIGS. 103 and 104, the regulation recess 63 is an inner cylinder wall surface 632 formed on the inner side in the radial direction and an outer cylinder wall surface which is a tubular wall surface formed on the outer side in the radial direction. It has 633.

Therefore, it is possible to prevent foreign matter in the regulation recess 63 from entering the shaft insertion hole 62. Thereby, the sealing property by the shaft sealing member 603 can be ensured.

<8-3>
As shown in FIGS. 103 and 104, the foreign matter depositing portion 68 is formed on the outer cylinder wall surface 633 side with respect to at least a part of the bottom surface 630 of the regulation recess 63.

Therefore, the foreign matter on the bottom surface 630 of the regulation recess 63 can be guided to the foreign matter accumulation portion 68 on the radial outer side of the regulation recess 63, and the foreign matter can be kept away from the shaft insertion hole 62. Thereby, the sealing property by the shaft sealing member 603 can be ensured.

<8-5>
As shown in FIG. 69, the inner cylinder wall surface 632 can guide the rotation of the valve body 31 by sliding with the first regulated convex portion 332 and the second regulated convex portion 342 as regulated portions.

Therefore, the rotation of the valve body 31 can be stabilized. Further, by depositing the foreign matter on the foreign matter depositing portion 68, it is possible to prevent the foreign matter from being caught between the inner cylinder wall surface 632 and the first regulated convex portion 332 and the second regulated convex portion 342, and the inner cylinder wall surface 632 and the second. It is possible to suppress deterioration of the slidability with the 1-regulated convex portion 332 and the 2nd regulated convex portion 342.

<8-6>
As shown in FIGS. 103 and 104, the regulating portion 631 is formed so as to extend from the inner cylinder wall surface 632 to the outer cylinder wall surface 633.

Therefore, the strength of the regulation unit 631 can be ensured.

<8-7>
As shown in FIGS. 103 and 104, the length L11 of the regulating portion 631 in the radial direction of the regulating recess 63 is larger than the length L12 of the foreign matter depositing portion 68 in the radial direction of the regulating recess 63.

Therefore, the strength of the regulation unit 631 can be ensured.

<8-12>
As shown in FIG. 104, the foreign matter depositing portion 68 is formed in a C shape in a cross section perpendicular to the axis of the shaft insertion hole 62.

Therefore, the partition wall through hole 65 can be formed between the peripheral ends of the foreign matter depositing portion 68.

<8-13>
As shown in FIGS. 103 and 104, the partition wall portion 60 has a partition wall through hole 65 extending outward from the shaft insertion hole 62 and opening to the outer wall of the partition wall portion main body 61. The partition wall through hole 65 is formed between the peripheral ends of the foreign matter depositing portion 68.

Therefore, the space can be effectively used and the partition wall main body 61 can be miniaturized.

<8-14>
As shown in FIG. 104, the bottom surface 630 of the regulation recess 63 is formed so that the length L21 in the circumferential direction increases toward the outside in the radial direction between the peripheral ends of the foreign matter depositing portion 68.

Therefore, it is possible to secure the strength of the portion of the partition wall portion main body 61 on the outer cylinder wall surface 633 side between the peripheral ends of the foreign matter depositing portion 68.

<8-15>
As shown in FIGS. 103 and 104, the regulation portion 631 is formed so as to extend radially outward on the bottom surface 630 of the regulation recess 63.

<8-16>
As shown in FIG. 104, the regulating portion 631 is formed so that the length L22 in the circumferential direction increases toward the radial outer side of the regulating recess 63.

Therefore, it is possible to secure the strength of the portion of the regulation portion 631 on the outer cylinder wall surface 633 side.

<8-17>
As shown in FIGS. 67 and 103, the foreign matter depositing portion 68 is located below the valve body 31 in a state where the housing 20 is attached to the engine 2.

More specifically, the foreign matter depositing portion 68 is located on the lower side in the vertical direction with respect to the valve body 31.

Therefore, the foreign matter depositing portion 68 is located below the bottom surface 630 of the regulation recess 63. As a result, the foreign matter in the regulation recess 63 can be effectively guided to the foreign matter depositing portion 68.

The partition wall main body 61 is formed of, for example, "PPS-GF50" like the housing main body 21.

Therefore, the heat resistance, water absorption resistance, strength, and dimensional accuracy of the partition wall main body 61 can be improved.

<9-1> Shaft bearing portion flow path The present embodiment is a valve device 10 capable of controlling cooling water of the engine 2 of the vehicle 1, and includes a housing 20, a valve 30, and a shaft bearing portion 90.

The housing 20 has a housing body 21 that forms an internal space 200 inside, and ports (220, 221, 222, 223) that connect the internal space 200 and the outside of the housing body 21.

The valve 30 has a valve body 31 that can rotate around the rotation axis Axr1 in the internal space 200, and a shaft 32 provided on the rotation axis Axr1, and ports (221, 222, 223) depending on the rotation position of the valve body 31. ) Can be opened and closed.

As shown in FIGS. 105 to 107, the shaft bearing portion 90 extends in a tubular shape from the facing inner wall 213 which is the inner wall facing the end of the shaft 32 among the inner walls of the housing body 21 forming the internal space 200, and the shaft inside. It has a bearing portion main body 91 capable of bearing the end portion of the 32, and a bearing portion flow path 92 formed so as to connect the inner peripheral wall and the outer peripheral wall of the bearing portion main body 91.

Therefore, even if air collects inside the bearing portion main body 91, the air can be discharged to the outside of the bearing portion main body 91 via the bearing portion flow path 92. As a result, it is possible to prevent the end portion of the shaft 32 and the shaft bearing portion 90 from sliding in a dry state. Therefore, it is possible to prevent the end portion of the shaft 32 or the shaft bearing portion 90 from being worn.

<9-2>
As shown in FIG. 107, the bearing portion flow path 92 is formed so as to extend from a portion of the bearing portion main body 91 on the facing inner wall 213 side to an end portion on the opposite side of the facing inner wall 213.

Therefore, even if air collects inside the bearing portion main body 91, the air can be quickly discharged to the outside of the bearing portion main body 91 via the bearing portion flow path 92.

<9-3>
As shown in FIGS. 105 and 106, the valve body 31 has a valve body end hole portion 314 formed inside so that the end portion of the shaft 32 and the bearing portion main body 91 are located.

Therefore, by arranging the bearing portion main body 91 inside the valve body end portion hole portion 314, the physique of the housing main body 21 in the rotation axis Axr1 direction can be reduced. As a result, the valve device 10 can be miniaturized.

<9-4>
As shown in FIGS. 105 and 106, the shaft bearing portion 90 has a cylindrical inner bearing portion 93 provided inside the bearing portion main body 91 and capable of bearing the end portion of the shaft 32 inside.

Therefore, wear of the bearing portion main body 91 can be suppressed.

<9-5>
As shown in FIGS. 105 and 106, the valve body 31 has a valve body end hole portion 314 formed inside so that the end portion of the shaft 32 and the bearing portion main body 91 are located. The shaft bearing portion 90 has a cylindrical inner bearing portion 93 provided inside the bearing portion main body 91 and capable of bearing the end portion of the shaft 32 inside. The difference between the inner diameter of the valve body end hole portion 314 and the outer diameter of the bearing portion main body 91 is smaller than the difference between the inner diameter of the bearing portion main body 91 and the outer diameter of the end portion of the shaft 32.

That is, the tubular gap S1 between the valve body end hole portion 314 and the bearing portion main body 91 is relatively small, and is not formed to a size sufficient to actively circulate the cooling water.

<9-6>
As shown in FIGS. 105 and 106, the shaft bearing portion 90 is located below the facing inner wall 213 when the housing 20 is attached to the engine 2.

More specifically, the shaft bearing portion 90 is located on the lower side in the vertical direction with respect to the facing inner wall 213.

Therefore, the shaft bearing portion 90 is located on the upper side in the vertical direction of the internal space 200, and the air in the cooling water in the internal space 200 tends to collect inside the bearing portion main body 91. However, even if air collects inside the bearing portion main body 91, the air can be discharged to the outside of the bearing portion main body 91 via the bearing portion flow path 92.

In the present embodiment, the bearing portion main body 91 is formed in a substantially cylindrical shape. The bearing portion flow path 92 is formed so as to extend from the end portion of the bearing portion main body 91 on the facing inner wall 213 side to the end portion on the opposite side of the facing inner wall 213. Two bearing portion flow paths 92 are formed at equal intervals in the circumferential direction of the bearing portion main body 91 so as to sandwich the shaft of the bearing portion main body 91 (see FIG. 107).

As shown in FIG. 107, the inner bearing portion 93 is formed with a bearing notch portion 931. The inner bearing portion 93 is formed in a substantially cylindrical shape with, for example, a resin such as PPS. The bearing notch portion 931 is formed so as to extend from one end to the other end of the inner bearing portion 93 while connecting the inner peripheral wall and the outer peripheral wall of the inner bearing portion 93.

Therefore, even if air collects inside the inner bearing portion 93, the air can be discharged to the outside of the inner bearing portion 93 via the bearing notch portion 931. Further, since the bearing notch portion 931 is formed in the inner bearing portion 93, the inner bearing portion 93 can be easily arranged between the end portion of the shaft 32 and the bearing portion main body 91.

The bearing notch 931 is formed so as to extend from one end of the inner bearing portion 93 to the other end while tilting with respect to the axis of the inner bearing portion 93.

Therefore, the inner peripheral wall of the inner bearing portion 93 can be brought into contact with the outer peripheral wall of the end portion of the shaft 32 at any portion in the circumferential direction of the inner bearing portion 93 regardless of the position in the axial direction. As a result, the shaft 32 can be stably bearing in the configuration in which the bearing notch portion 931 is formed in the inner bearing portion 93.

As shown in FIGS. 105 and 106, the bearing portion main body 91 is formed so as to extend to the lower side of the upper end portion in the vertical direction of the outlet port 221. That is, the tip portion of the bearing portion main body 91 is located below the upper end portion in the vertical direction of the outlet port 221.

Therefore, the air inside the bearing portion main body 91 can be easily discharged to the outside of the housing main body 21 via the outlet port 221.

<10-1> Inner wall of non-round housing This embodiment is a valve device 10 capable of controlling cooling water of an engine 2 of a vehicle 1, and includes a housing 20 and a valve 30.

The housing 20 has a housing body 21 in which a cylindrical housing inner wall 211 forming an internal space 200 is formed inside, and a port (220, 221) that opens into the housing inner wall 211 and connects the internal space 200 and the outside of the housing body 21. 222, 223).

As shown in FIGS. 67 and 108, the valve 30 includes a valve body 31 that can rotate around the rotation axis Axr1 along the axis Axn1 of the housing inner wall 211 in the internal space 200, and the outer peripheral wall and the inner peripheral wall of the valve body 31. It has valve body openings (410, 420, 430) formed to connect the valves, and the port can be opened and closed depending on the rotation position of the valve body 31. In this embodiment, the axis Axn1 and the rotation axis Axr1 coincide with each other.

As shown in FIGS. 108 and 109, the housing inner wall 211 is formed so that the distance Dna1 from the axis Axn1 differs in the circumferential direction.

Therefore, when the shape of the outer peripheral wall of the valve body 31 in the cross section perpendicular to the rotation axis Axr1 of the valve body 31 is circular, the distance Dgn1 between the outer peripheral wall of the valve body 31 and the inner wall 211 of the housing is different in the circumferential direction. That is, the distance Dgn1 between the outer peripheral wall of the valve body 31 and the housing inner wall 211 is not constant in the circumferential direction, and the gap Sb10 between the outer peripheral wall of the valve body 31 and the housing inner wall 211 is a large portion (gap Sb01) in the circumferential direction. ) And a small portion (gap Sb02) are formed (see FIG. 109). As a result, even if foreign matter in the cooling water of the internal space 200 enters the gap Sb10 between the outer peripheral wall of the valve body 31 and the inner wall 211 of the housing, the foreign matter moves to the large gap Sb01 due to the rotation of the valve body 31. , Foreign matter can be easily discharged from the gap Sb01. Therefore, it is possible to suppress the malfunction of the valve body 31 due to the foreign matter continuing to stay in the gap Sb10 between the outer peripheral wall of the valve body 31 and the inner wall 211 of the housing. Further, it is possible to suppress an increase in load torque and an increase in pressure drop resistance related to driving the valve body 31.

<10-2>
As shown in FIGS. 108 and 109, the valve body 31 is formed so that the distance Dga1 from the rotation axis Axr1 to the outer peripheral wall is the same in the circumferential direction. That is, the outer peripheral wall of the valve body 31 is formed so as to be circular in the cross section perpendicular to the rotation axis Axr1.

Therefore, as described above, the distance Dgn1 between the outer peripheral wall of the valve body 31 and the inner wall 211 of the housing is different in the circumferential direction. The gap Sb10 between the outer peripheral wall of the valve body 31 and the inner wall 211 of the housing is formed with a large portion (gap Sb01) and a small portion (gap Sb02) in the circumferential direction. Therefore, it is possible to suppress the malfunction of the valve body 31 due to the foreign matter continuing to stay in the gap Sb10 between the outer peripheral wall of the valve body 31 and the inner wall 211 of the housing.

<10-3>
As shown in FIG. 108, the housing inner wall 211 is formed so as to be non-circular in a cross section perpendicular to the axis Axn1.

Therefore, the gap Sb10 between the outer peripheral wall of the valve body 31 and the inner wall 211 of the housing is formed with a large portion (gap Sb01) and a small portion (gap Sb02) in the circumferential direction.

<10-4>
As shown in FIG. 108, the housing inner wall 211 is formed to be polygonal in a cross section perpendicular to the axis Axn1.

Therefore, the cross section of the housing inner wall 211 is brought closer to a circle to reduce the radial physique of the housing body 21, and a large portion (gap Sb01) in the circumferential direction is provided in the gap Sb10 between the outer peripheral wall of the valve body 31 and the housing inner wall 211. And a small portion (gap Sb02) can be formed.

In this embodiment, the housing inner wall 211 is formed to have an octagonal shape in a cross section perpendicular to the axis Axn1. Further, the corner portion 214, which is a connecting portion of each side of the housing inner wall 211 having an octagonal cross section, has a smooth curved shape (see FIGS. 108 and 109).

Therefore, the radial physique of the housing body 21 can be made smaller. Further, it is possible to prevent foreign matter from staying at the corner portion 214 of the housing inner wall 211.

<10-5>
As shown in FIG. 67, in the "cross section including the portion having the largest outer diameter of the valve body 31 and perpendicular to the axis Axn1 of the inner wall 211 of the housing (for example, the cross section by the plane shown by Pd1 in FIG. 67)", the valve body. The distance Dgn1 between the outer peripheral wall of 31 and the inner wall 211 of the housing differs in the circumferential direction.

Therefore, the foreign matter can be discharged from the gap Sb10 between the outer peripheral wall of the valve body 31 and the inner wall 211 of the housing in the "part where the outer diameter of the valve body 31 is the largest" where the influence of the foreign matter is large.

<10-6>
As shown in FIG. 67, "a portion of the inner wall 211 of the housing other than the portion where the port (220, 221, 222, 223) is open, and the valve body opening of the valve body 31 (410, 420, 430). ) Is included, and in a cross section perpendicular to the axis Axn1 of the housing inner wall 211 (for example, a cross section by the surface shown by Pd2 in FIG. 67), the outer peripheral wall of the valve body 31 and the housing inner wall 211. The distance Dgn1 to and from is different in the circumferential direction.

Therefore, the foreign matter can be discharged from the gap Sb10 in the "part of the gap Sb10 closed over the entire circumferential direction of the valve body 31" where the influence of the foreign matter is large.

<10-7>
As shown in FIG. 68, the housing 20 has a relief port 224 that opens into the inner wall 211 of the housing and connects the internal space 200 to the outside of the housing body 21.

The present embodiment further includes a relief valve 39. The relief valve 39 is provided in the relief port 224 and opens and closes the relief port 224 according to the conditions.

In a situation where foreign matter cannot be removed along the flow of cooling water, foreign matter may accumulate in the internal space 200, and when the relief valve 39 opens, the foreign matter may be caught and the relief valve 39 may remain open. ..

Therefore, in the present embodiment, the distance Dgn1 between the outer peripheral wall of the valve body 31 and the housing inner wall 211 is different in the circumferential direction by forming the housing inner wall 211 so that the distance Dna1 from the axis Axn1 is different in the circumferential direction. The foreign matter can be easily discharged from the gap Sb10 between the outer peripheral wall of the valve body 31 and the inner wall 211 of the housing. As a result, it is possible to prevent foreign matter from being caught in the relief valve 39 and leaving the relief valve 39 in an open state.

<10-8>
As shown in FIG. 67, the present embodiment further includes a valve seal 36. The valve seal 36 is formed in an annular shape, is provided at a position corresponding to the port (221, 222, 223) so as to be slidable with the outer peripheral wall of the valve body 31, and is liquid-tight with the outer peripheral wall of the valve body 31. Can be held in.

In the "cross section including the valve seal 36 and perpendicular to the axis Axn1 of the housing inner wall 211 (for example, the cross section by the plane shown by Pd1 in FIG. 67)", the distance Dgn1 between the outer peripheral wall of the valve body 31 and the housing inner wall 211 is determined. It differs in the circumferential direction.

Therefore, foreign matter can be removed from the periphery of the valve seal 36 in the gap Sb10 between the outer peripheral wall of the valve body 31 and the inner wall 211 of the housing. As a result, damage to the outer peripheral wall of the valve body 31 due to foreign matter being caught between the outer peripheral wall of the valve body 31 and the valve seal 36 can be suppressed.

<10-9>
As shown in FIG. 67, the housing 20 has a housing opening 210 whose inner peripheral surface is connected to the end of the housing inner wall 211 in the axis Axn1 direction and which connects the internal space 200 and the outside of the housing body 21. ..

The valve 30 has a shaft 32 provided on the rotating shaft Axr1.

The partition wall 60 is formed in the partition wall body 61 provided in the housing opening 210 so as to separate the internal space 200 from the outside of the housing body 21, and in the partition wall body 61 so that one end of the shaft 32 can be inserted. It has a shaft insertion hole 62.

The drive portion 70 is provided on the side opposite to the internal space 200 with respect to the partition wall portion main body 61, and can rotationally drive the valve body 31 via one end of the shaft 32.

The annular seal member 600 is provided between the housing opening 210 and the partition wall main body 61, and can hold the space between the housing opening 210 and the partition wall main body 61 in a liquid-tight manner.

The inner peripheral surface of the housing opening 210 is formed in a cylindrical shape.

In this way, by forming the inner peripheral surface of the housing opening 210 in a cylindrical shape while forming the inner wall 211 of the housing so that the cross section is non-circular, the space between the outer peripheral wall of the valve body 31 and the inner wall 211 of the housing is formed. It is possible to secure the sealing property between the housing opening 210 and the partition wall main body 61 while facilitating the removal of foreign matter from the gap Sb10.

In the present embodiment, the valve body 31 includes ball valves 41, 42, 43 having spherical inner peripheral walls and outer peripheral walls. On the other hand, in another embodiment, the valve body 31 may be formed in a cylindrical shape, for example. Even in this case, by forming the housing inner wall 211 or the like as described above, foreign matter can be easily removed from the gap Sb10 between the outer peripheral wall of the valve body 31 and the housing inner wall 211.

<11-1> Relief valve shielding unit The present embodiment is a valve device 10 capable of controlling the cooling water of the engine 2 of the vehicle 1, and includes a housing 20, a valve 30, a relief valve 39, and a shielding unit 95.

The housing 20 includes a housing body 21 that forms an internal space 200 inside, an inlet port 220 that connects the internal space 200 and the outside of the housing body 21 and allows cooling water to flow in, and an internal space 200 and the outside of the housing body 21. Has a relief port 224 to connect to.

The valve 30 has a valve body 31 that can rotate around the rotation axis Axr1 in the internal space 200, and a shaft 32 provided on the rotation axis Axr1.

The relief valve 39 is provided in the relief port 224 and opens or closes depending on the conditions to allow or cut off the communication between the internal space 200 and the outside of the housing body 21 via the relief port 224.

Here, the valve opening condition of the relief valve 39 is, for example, "when the ambient temperature becomes equal to or higher than a predetermined temperature". The relief valve 39 opens, for example, when the temperature of the cooling water exceeds a predetermined temperature, and communicates between the internal space 200 via the relief port 224 and the space outside the housing body 21, that is, inside the pipe portion 515. When the temperature of the cooling water becomes lower than the predetermined temperature, the above communication is cut off. As a result, when the temperature of the cooling water rises excessively, such as when the vehicle 1 is overheated, the cooling water can be flowed from the internal space 200 to the external radiator 5 to cool the cooling water.

As shown in FIG. 112, the shielding portion 95 can shield the relief valve 39 so that the relief valve 39 cannot be visually recognized from the inlet port 220. More specifically, the relief valve 39 is shielded by the shielding portion 95 when viewed from the axial direction of the inlet port 220, and the entire relief valve 39 is invisible.

Therefore, it is possible to prevent the cooling water flowing into the internal space 200 from the inlet port 220 from directly hitting the relief valve 39. As a result, even when the cooling water having a high temperature flows in momentarily or when the cooling water having a high temperature locally flows in, the relief valve 39 is prevented from being misidentified as overheated and opened due to a malfunction. be able to. Therefore, the relief valve 39 can appropriately suppress the overheating of the vehicle 1.

<11-2>
As shown in FIG. 112, the shielding portion 95 is provided on the housing main body 21 so as to be located on the relief port 224 side with respect to the shaft 32.

Therefore, the shielding portion 95 can be arranged close to the relief valve 39, and the direct impact of the cooling water on the relief valve 39 can be suppressed more effectively.

<11-4>
As shown in FIGS. 110 and 112, when the inlet port 220, the relief valve 39 and the shield 95 are projected in the axial direction of the inlet port 220 or the axial direction of the relief port 224, the shield 95 is projected with the inlet port 220. It is formed so that the projection has an area equal to or larger than the area of the portion B1 (the portion shown by the grid in FIG. 110) that overlaps with the projection of the relief valve 39.

Therefore, it is possible to secure water permeability by surely preventing the direct hit of the cooling water to the relief valve 39 and not narrowing the flow path area more than necessary.

<11-5>
As shown in FIG. 112, the surface 951 on the valve 30 side of the shielding portion 95 is formed so as to follow the shape of the housing inner wall 211 which is the inner wall of the housing main body 21 forming the internal space 200.

Therefore, it is possible to suppress the occurrence of turbulence in the fluid flow in the internal space 200 due to the shielding portion 95. Further, it is possible to prevent stress concentration on the shielding portion 95 and improve the durability of the housing body 21.

<11-6>
As shown in FIG. 112, the shielding portion 95 is formed in a plate shape and has a uniform plate thickness.

Therefore, it is possible to prevent stress concentration on the shielding portion 95 and improve the durability of the housing body 21.

In the present embodiment, the relief valve 39 opens "when the ambient temperature exceeds a predetermined temperature". On the other hand, in another embodiment, the relief valve 39 may be opened "when the pressure becomes equal to or higher than a predetermined pressure". Alternatively, the relief valve 39 may be opened "when the ambient temperature becomes a predetermined temperature or higher" and "when the pressure becomes a predetermined pressure or higher". Even in this case, the malfunction of the relief valve 39 can be suppressed by suppressing the direct impact of the cooling water on the relief valve 39 by the shielding portion 95.

(15th Embodiment)
The valve device according to the fifteenth embodiment will be described with reference to FIGS. 113 and 114. In the fifteenth embodiment, the configuration of the valve body 31 and the like are different from those in the fourteenth embodiment.

In the present embodiment, the formation positions and sizes of the valve body openings 410, 420, and 430 in the circumferential direction of the valve body 31 are different from those of the 14th embodiment.

In the present embodiment, the arrangement direction and shape of the ball valve 41, the tubular connection portion 44, the ball valve 42, the tubular valve connection portion 45, the ball valve 43, and the like are the same as those in the 14th embodiment (FIGS. 90 to 102). Etc.). Further, in the present embodiment, the valve body opening 410 has a large opening 412 and an extended opening 413 as in the 14th embodiment (see FIGS. 93, 94, etc.).

<12-1> Flow Diagram This embodiment is a valve device 10 capable of controlling the cooling water of the engine 2 of the vehicle 1, and includes a housing 20, a valve 30, a drive unit 70, and an ECU 8 as a control unit.

The housing 20 is an outlet port 221 as a radiator port connected to the internal space 200 and the internal space 200 and connected to the radiator 5 of the vehicle 1, and a heater port connected to the internal space 200 and connected to the heater 6 of the vehicle 1. It has an exit port 222 and an exit port 223 as a device port connected to the internal space 200 and connected to the device 7 of the vehicle 1. Hereinafter, for the sake of simplicity, the outlet ports 221, 222, and 223 are appropriately read as radiator ports 221 and heater ports 222, and device ports 223, respectively.

The valve 30 has a valve body 31 that can rotate around the rotation axis Axr1 in the internal space 200, and can open and close the radiator port 221 and the heater port 222 or the device port 223 depending on the rotation position of the valve body 31.

The drive unit 70 can rotationally drive the valve body 31.

The ECU 8 controls the operation of the drive unit 70 and controls the rotational drive of the valve body 31, so that the ECU 8 can be used between the radiator port 221 and the radiator 5, between the heater port 222 and the heater 6, and between the device port 223 and the device. The flow of cooling water to and from No. 7 can be controlled.

As shown in FIGS. 113 and 114, the ECU 8 has a predetermined opening degree in which all the openings of the radiator port 221, the heater port 222 and the device port 223 are larger than 0 as the valve body 31 is rotationally driven to one side in the rotation direction. After that, the heater port 222 and the device port 223 are closed, and the drive unit 70 and the valve body 31 can be controlled so that the opening degree of only the radiator port 221 becomes the predetermined opening degree.

Therefore, the predetermined opening is set to an opening that can increase the cooling efficiency of the engine 2, and the drive unit 70 and the valve body 31 are controlled so that the opening of only the radiator port 221 becomes the predetermined opening. This makes it possible to maximize the cooling efficiency of the engine 2 when the load is high.

<12-2>
As shown in FIGS. 113 and 114, in the ECU 8, as the valve body 31 is rotationally driven to one side in the rotation direction, all the openings of the radiator port 221 and the heater port 222 and the device port 223 become the predetermined openings. After that, the drive unit 70 and the valve body 31 can be controlled so that the heater port 222 and the device port 223 are closed in the order of the heater port 222 and the device port 223.

Therefore, the heat exchange from the heater 6 can be immediately cut off, and the cooling efficiency of the engine 2 can be improved.

<12-9>
The predetermined opening degree is set to 60% or more.

Therefore, by controlling the drive unit 70 and the valve body 31 so that the opening degree of only the radiator port 221 becomes the predetermined opening degree, it is possible to appropriately maximize the cooling efficiency of the engine 2 when the load is high.

In this embodiment, the predetermined opening degree is set to 100% in order to maximize the cooling efficiency of the engine 2.

Therefore, by controlling the drive unit 70 and the valve body 31 so that the opening degree of only the radiator port 221 becomes the predetermined opening degree, the cooling efficiency of the engine 2 under a high load can be maximized.

<12-10>
The valve body 31 has an outer peripheral wall and an inner peripheral wall formed in a spherical shape (see FIG. 67 and the like).

The valve 30 is formed so as to connect the valve body flow path 300 formed inside the inner peripheral wall of the valve body 31 and the outer peripheral wall and the inner peripheral wall of the valve body 31, and is connected to the radiator port 221 depending on the rotation position of the valve body 31. Radiator which is the polymerization ratio The valve body opening 410 as a radiator opening where the polymerization ratio changes, and the heater port 222 are formed so as to connect the outer peripheral wall and the inner peripheral wall of the valve body 31 and depending on the rotation position of the valve body 31. The valve body opening 420 as a heater opening in which the heater polymerization ratio, which is the polymerization ratio, is changed, and the device port 223 is formed so as to connect the outer peripheral wall and the inner peripheral wall of the valve body 31 and depends on the rotation position of the valve body 31. It has a valve body opening 430 as an opening for a device in which the device polymerization ratio, which is the polymerization ratio of the device, changes. Hereinafter, for the sake of simplicity, the valve body openings 410, 420, and 430 are appropriately read as radiator openings 410, heater openings 420, and device openings 430, respectively.

As described above, this embodiment can be realized by a rotary valve in which the outer peripheral wall and the inner peripheral wall are spherical valves 31.

Here, the radiator polymerization ratio is, more specifically, the seal opening 360 with respect to the maximum value of the overlapping area between the seal opening 360 of the valve seal 36 of the seal unit 35 provided in the radiator port 221 and the radiator opening 410. It is the ratio of the overlapping area between the radiator port and the radiator opening 410, and corresponds to the opening degree of the radiator port 221.

More specifically, the heater polymerization ratio is for the seal opening 360 and the heater with respect to the maximum value of the overlapping area between the seal opening 360 of the valve seal 36 of the valve seal 36 of the seal unit 35 provided in the heater port 222 and the heater opening 420. It is the ratio of the overlapping area with the opening 420, and corresponds to the opening degree of the heater port 222.

More specifically, the device polymerization ratio is determined by the seal opening 360 and the device for the maximum value of the overlapping area between the seal opening 360 of the valve seal 36 of the valve seal 36 provided in the device port 223 and the device opening 430. It is the ratio of the overlapping area with the opening 430, and corresponds to the opening of the device port 223.

<12-11>
When the radiator polymerization ratio is larger than 0, the radiator port 221 opens, and the valve body flow path 300 and the radiator 5 communicate with each other via the radiator opening 410 and the radiator port 221. As a result, at this time, the cooling water flows from the flow path 300 in the valve body to the radiator 5 side.

When the heater polymerization ratio is larger than 0, the heater port 222 opens, and the valve body flow path 300 and the heater 6 communicate with each other via the heater opening 420 and the heater port 222. As a result, at this time, the cooling water flows from the valve body flow path 300 to the heater 6 side.

When the device polymerization ratio is larger than 0, the device port 223 opens, and the valve body flow path 300 and the device 7 communicate with each other via the device opening 430 and the device port 223. As a result, at this time, the cooling water flows from the valve body flow path 300 to the device 7 side.

Next, the flow diagram of the cooling water in the valve device 10 of the present embodiment will be described in detail with reference to FIGS. 113 and 114.

As shown in FIGS. 113 and 114, when the rotation position of the valve body 31 is 0 (degrees) which is the reference position (when the rotation position Pr0 in FIG. 114), that is, the first regulation convex portion 332 or the second regulation convex. When one of the portions 342 abuts on the regulating portion 631 and the rotation of the valve body 31 is restricted, the opening degrees of the radiator port 221, the heater port 222, and the device port 223 are all 0% (fully closed). .. Hereinafter, when described as Pr0 to 13, it means the rotation position Pr0 to 13 in FIG. 114.

When the valve body 31 is rotationally driven to one side in the rotation direction by the control of the drive unit 70 by the ECU 8 and the rotation position of the valve body 31 increases from 0, the opening degree of the heater port 222 between Pr2 and Pr3 increases. It increases from 0 (%) at a predetermined rate. As a result, an amount of cooling water corresponding to the opening degree of the heater port 222 flows to the heater 6 side. The opening degree of the heater port 222 reaches 100% (fully open: the predetermined opening degree) at Pr3.

When the valve body 31 is further rotationally driven to one side in the rotation direction, the opening degree of the device port 223 between Pr4 and Pr5 increases from 0 (%) at a predetermined rate. As a result, an amount of cooling water corresponding to the opening degree of the device port 223 flows to the device 7 side. The opening degree of the device port 223 reaches 100% (fully open: the predetermined opening degree) at Pr5.

Here, the rate of increase in the opening degree of the heater port 222 between Pr2 and Pr3 per unit rotation angle of the valve body 31 is the same as the rate of increase in the opening degree of the device port 223 between Pr4 and Pr5. (See FIGS. 113 and 114).

When the valve body 31 is further rotationally driven to one side in the rotation direction, the opening degree of the radiator port 221 between Pr6 and Pr7 increases from 0 (%) at a predetermined rate. As a result, an amount of cooling water corresponding to the opening degree of the radiator port 221 flows to the radiator 5 side.

When the valve body 31 is further rotationally driven to one side in the rotation direction, the opening degree of the radiator port 221 is further increased by a predetermined ratio between Pr7 and Pr8. The opening degree of the radiator port 221 reaches 100% (fully open: the predetermined opening degree) at Pr8. Therefore, in Pr8, all the openings of the radiator port 221 and the heater port 222 and the device port 223 become the predetermined opening, that is, 100%.

Here, the rate of increase in the opening degree of the radiator port 221 between Pr6 and Pr7 per unit rotation angle of the valve body 31 is smaller than the rate of increase in the opening degree of the radiator port 221 between Pr7 and Pr8 (FIG. 113, 114). This is because the radiator opening 410 is formed from the stretched opening 413 and the large opening 412 (see FIGS. 93, 94, etc.). That is, the rate of increase in the opening degree of the radiator port 221 is small when the stretched opening 413 and the seal opening 360 overlap, and increases when the large opening 412 and the seal opening 360 overlap.

Therefore, the flow rate of the cooling water to the radiator 5 can be gradually increased at the initial stage of opening the radiator port 221. As a result, it is possible to suppress a sudden temperature change of the cooling water due to heat exchange of the radiator 5.

Further, the rate of increase in the opening degree of the radiator port 221 between Pr6 and Pr7 per unit rotation angle of the valve body 31 and the rate of increase in the opening degree of the radiator port 221 between Pr7 and Pr8 are as shown in Pr2. It is smaller than the rate of increase in the opening degree of the heater port 222 between Pr3 and the rate of increase in the opening degree of the device port 223 between Pr4 and Pr5 (see FIGS. 113 and 114).

Therefore, the change in the flow rate of the cooling water to the radiator 5 at the initial stage of valve opening can be made gentler than the change in the flow rate of the cooling water to the heater 6 and the device 7. As a result, it is possible to suppress a sudden temperature change of the cooling water due to heat exchange of the radiator 5.

When the valve body 31 is further rotationally driven to one side in the rotation direction, the opening degree of the heater port 222 between Pr9 and Pr10 decreases from 100% at a predetermined rate. As a result, the amount of cooling water flowing to the heater 6 side decreases according to the opening degree of the heater port 222. The opening degree of the heater port 222 becomes 0% (fully closed) at Pr10. As a result, the heater port 222 is closed and the flow of cooling water to the heater 6 side is cut off.

When the valve body 31 is further rotationally driven to one side in the rotation direction, the opening degree of the device port 223 between Pr11 and Pr12 decreases from 100% at a predetermined rate. As a result, the amount of cooling water flowing to the device 7 side decreases according to the opening degree of the device port 223. The opening degree of the device port 223 is 0% (fully closed) at Pr12. As a result, the device port 223 is closed and the flow of cooling water to the device 7 side is cut off.

Here, the rate of decrease in the opening degree of the heater port 222 between Pr9 and Pr10 per unit rotation angle of the valve body 31 is the same as the rate of decrease in the opening degree of the device port 223 between Pr11 and Pr12. (See FIGS. 113 and 114).

When the valve body 31 is further rotationally driven to one side in the rotational direction, the other of the first regulated convex portion 332 or the second regulated convex portion 342 abuts on the restricting portion 631 at Pr13, and the rotational drive of the valve body 31 is stopped. .. At this time, the opening degree of the radiator port 221 remains 100%. That is, at this time, the opening degree of only the radiator port 221 is 100% (fully open: the predetermined opening degree).

In the present embodiment, as described above, in the ECU 8, as the valve body 31 is rotationally driven to one side in the rotation direction, all the openings of the radiator port 221 and the heater port 222 and the device port 223 are opened at Pr8. After reaching the degree (100%), the heater port 222 and the device port 223 are closed at Pr10 and Pr12, and the drive unit 70 and the valve body are opened so that only the radiator port 221 at Pr13 has the predetermined opening (100%). 31 can be controlled.

Further, in the present embodiment, as described above, in the ECU 8, as the valve body 31 is rotationally driven to one side in the rotation direction, all the openings of the radiator port 221 and the heater port 222 and the device port 223 are set to Pr8. After the predetermined opening degree (100%) is reached, the drive unit 70 and the valve body 31 can be controlled so that the heater port 222 and the device port 223 are closed in the order of the heater port 222 and the device port 223 (Pr10, Pr12).

(16th Embodiment)
The valve device according to the 16th embodiment is shown in FIG. 115. In the 16th embodiment, the shapes and the like of the fastening portions 231 to 233 are different from those in the 14th embodiment.

<1-11>
The fastening portion 231 has two outer walls (234, 235) having a linear shape in a cross section formed by a plane perpendicular to the fastening hole 241, and the angle θ1 formed by the two outer walls (234, 235) is an obtuse angle. Is formed like this.

The fastening portion 232 has two outer walls (236, 237) having a linear shape in a cross section formed by a plane perpendicular to the fastening hole 242, and the angle θ2 formed by the two outer walls (236, 237) is an obtuse angle. Is formed like this.

The fastening portion 233 has two outer walls (238, 239) having a linear shape in a cross section formed by a plane perpendicular to the fastening hole 243, and the angle θ3 formed by the two outer walls (238, 239) is an obtuse angle. Is formed like this.

Therefore, the strength of the fastening portions 231 to 233 can be improved, and the seismic resistance of the valve device 10 can be improved. When the valve device 10 is used, the cooling water flows into the internal space 200, so that the weight of the device including the cooling water becomes relatively large. Therefore, by improving the strength of the fastening portions 231 to 233, the valve device 10 can be reliably fixed in the limited mounting space (narrow space A1).

As shown in FIG. 115, the range in which the fastening portion 231 is formed overlaps with the range in which the fastening portion 232 and the fastening portion 233 are formed in the rotation axis Axr1 direction of the valve body 31.

Therefore, the housing body 21 can be stably fixed to the engine 2.

The length of the fastening portions 231, 232, and 233 in the rotation axis Axr1 direction of the valve body 31 is larger than the diameter of the inlet port 220.

Therefore, the housing body 21 can be stably fixed to the engine 2.

The length of the fastening portion 231 in the rotation axis Axr1 direction of the valve body 31 is larger than the length of the fastening portion 232 or the fastening portion 233 in the rotation axis Axr1 direction of the valve body 31.

Therefore, on the side of only one of the three fastening portions, the balance in both the left and right directions (width direction) of the housing main body 21 when the housing main body 21 is fixed to the engine 2 can be ensured.

The center of the fastening portion 231 in the rotation axis Axr1 direction of the valve body 31 and the center of the fastening portion 233 in the rotation axis Axr1 direction of the valve body 31 are on the drive portion 70 side from the center of the inlet port 220.

Therefore, the vibration caused by the drive unit 70 can be effectively suppressed.

The end portion of the outer wall 238 of the fastening portion 233 on the drive portion 70 side is located on the opposite side of the rotation shaft Axr1 with respect to the end portion of the outer wall 239 on the inlet port 220 side.

Therefore, the vibration caused by the drive unit 70 can be effectively suppressed.

The fastening portions 232 and 233 are formed from one end to the other end of the valve body 31 in the range where the mounting surface recess 207 is formed in the mounting surface 201 in the rotation axis Axr1 direction.

Therefore, the housing body 21 can be stably fixed to the engine 2.

(17th Embodiment)
FIG. 116 shows a part of the valve device according to the 17th embodiment. The 17th embodiment is different from the 3rd embodiment in the configuration of the valve 30 and the like.

<3-30>
The partition wall 60 includes a partition wall body 61 that separates the internal space 200 from the outside of the housing 20, a shaft insertion hole 62 formed in the partition wall body 61 so that one end of the shaft 32 can be inserted, and the partition wall body 61. It has a regulating recess 63 that is recessed from the surface on the internal space 200 side to the side opposite to the internal space 200.

The valve body 31 has a regulation convex portion 344 extending from the first outermost end surface 301, which is a surface of the second division 34 on the partition wall portion 60 side, toward the regulation recess 63 side and having a tip portion located in the regulation recess 63. There is.

In the third embodiment, an example is shown in which the regulation convex portion 332 and the second regulation convex portion 342 are in contact with each other to form the regulation convex portion (see FIG. 23). On the other hand, in the present embodiment, as described above, one regulation convex portion 344 is formed so as to extend from the second divided body 34.

Also in this embodiment, when the rotation of the valve body 31 is restricted by the regulating portion 631, the force in the direction in which the first divided body 33 and the second divided body 34 are separated (peeled) at the joint surfaces 331 and 341 is the valve body. It can suppress the action on 31. Therefore, when the regulation convex portion 344 comes into contact with the regulation portion 631 of the regulation recess 63, it is possible to prevent the first division body 33 and the second division body 34 from separating from each other at the joint surfaces 331 and 341.

In the present embodiment, the regulation convex portion 344 is formed on "a virtual plane Vp8 including the rotation axis Axr1 and perpendicular to the joint surfaces 331 and 341" (see FIG. 116).

Therefore, when the rotation of the valve body 31 is restricted by the regulating portion 631, a force in a direction in which the first divided body 33 and the second divided body 34 are separated (peeled) at the joint surfaces 331 and 341 acts on the valve body 31. Can be reliably suppressed.

(18th Embodiment)
FIG. 117 shows a part of the valve device according to the eighteenth embodiment. In the eighteenth embodiment, the configuration of the valve 30 and the like are different from those in the third embodiment.

<3-31>
The first regulation convex portion 332 extends toward the regulation recess 63 side along the surface direction of the joint surface 331. The second regulation convex portion 342 extends toward the regulation recess 63 side along the surface direction of the joint surface 341 without abutting on the first regulation convex portion 332.

Also in the present embodiment, as in the third embodiment, when the rotation of the valve body 31 is restricted by the regulating unit 631, the first divided body 33 and the second divided body 34 are separated (peeled) at the joint surfaces 331 and 341. ) Directional force does not work. Therefore, when the first regulation convex portion 332 or the second regulation convex portion 342 comes into contact with the regulation portion 631 of the regulation recess 63, the first division body 33 and the second division body 34 are separated from each other at the joint surfaces 331 and 341. Can be suppressed.

In the present embodiment, when the valve body 31 is divided into two regions by the "virtual plane Vp8 including the rotation axis Axr1 and perpendicular to the joint surfaces 331 and 341", the first regulation convex portion 332 and the second regulation convex portion 342 It is formed on one side of the two regions (see FIG. 117).

Therefore, when the rotation of the valve body 31 is restricted by the regulating portion 631, a force in a direction in which the first divided body 33 and the second divided body 34 are separated (peeled) at the joint surfaces 331 and 341 acts on the valve body 31. Can be reliably suppressed.

Further, the distance between the rotating shaft Axr1 and the first regulated convex portion 332 is smaller than the distance between the rotating shaft Axr1 and the second regulated convex portion 342 (see FIG. 117).

(19th Embodiment)
FIG. 118 shows a part of the valve device according to the 19th embodiment. In the 19th embodiment, the shape of the regulation recess 63 is different from that of the 14th embodiment.

<8-4>
As shown in FIG. 118, the bottom surface 630 of the regulation recess 63 is formed in a tapered shape so as to approach the drive unit 70 from the inner cylinder wall surface 632 side toward the outer cylinder wall surface 633 side.

Therefore, the foreign matter on the bottom surface 630 of the regulation recess 63 can be positively guided to the foreign matter accumulation portion 68 on the radial outer side of the regulation recess 63, and the foreign matter can be kept away from the shaft insertion hole 62. As a result, the sealing property of the shaft sealing member 603 can be effectively ensured.

(20th Embodiment)
FIG. 119 shows a part of the valve device according to the twentieth embodiment. The 20th embodiment is different from the 14th embodiment in the configuration of the valve 30 and the regulation unit 631.

<8-8>
As shown in FIG. 119, the valve 30 has a valve body cylinder portion 315 that extends cylindrically from the valve body 31 toward the drive portion 70 side. The tip of the valve body cylinder portion 315 is located radially outside the inner cylinder wall surface 632.

Therefore, it is possible to prevent foreign matter in the regulation recess 63 from entering the shaft insertion hole 62. Thereby, the sealing property by the shaft sealing member 603 can be ensured.

<8-9>
The valve 30 has a labyrinth forming portion 316 formed in the valve body cylinder portion 315 and capable of forming a labyrinth-shaped space Sr1 with the inner cylinder wall surface 632.

Therefore, it is possible to effectively prevent foreign matter in the regulation recess 63 from entering the shaft insertion hole 62. As a result, the sealing property of the shaft sealing member 603 can be effectively ensured.

<8-10>
The labyrinth forming portion 316 is formed in an annular shape so as to project radially inward from the tip end portion of the valve body cylinder portion 315.

Therefore, with a simple configuration, it is possible to effectively prevent foreign matter in the regulation recess 63 from entering the shaft insertion hole 62.

<8-11>
The valve body cylinder portion 315 is formed so as to be located on the inner cylinder wall surface 632 side with respect to the regulation portion 631 in the radial direction of the regulation recess 63.

Therefore, it is possible to prevent the valve body cylinder portion 315 and the regulating portion 631 from interfering with each other when the valve body 31 rotates.

(21st Embodiment)
A part of the valve device according to the 21st embodiment is shown in FIGS. 120 and 121. The 21st embodiment is different from the 14th embodiment in the arrangement of the shielding portion 95 and the like.

<11-3>
The shielding portion 95 is provided on the housing main body 21 so as to be located on the inlet port 220 side with respect to the shaft 32.

Therefore, the shielding portion 95 can be arranged at an appropriate distance from the relief valve 39, and the reactivity of the relief valve 39 can be ensured while suppressing the direct impact of the cooling water on the relief valve 39.

<11-4>
In the present embodiment, when the shielding portion 95 projects the inlet port 220, the relief valve 39 and the shielding portion 95 in the axial direction of the inlet port 220 or the axial direction of the relief port 224, the projection of the inlet port 220 and the relief valve 39 It is formed so that the projection has an area equal to or larger than the area of the portion B2 where the projection overlaps.

Therefore, it is possible to secure water permeability by surely preventing the direct hit of the cooling water to the relief valve 39 and not narrowing the flow path area more than necessary.

<11-6>
As shown in FIGS. 120 and 121, the shielding portion 95 is formed in a plate shape and has a uniform plate thickness.

Therefore, it is possible to prevent stress concentration on the shielding portion 95 and improve the durability of the housing body 21.

(22nd Embodiment)
The valve device according to the 22nd embodiment will be described with reference to FIG. 122. The 22nd embodiment is different from the 15th embodiment in the configuration of the valve body 31, the method of controlling the drive unit 70 and the valve body 31 and the like.

In the present embodiment, the formation positions and sizes of the valve body openings 410, 420, and 430 in the circumferential direction of the valve body 31 are different from those in the fifteenth embodiment.

<12-3>
As shown in FIG. 122, in the ECU 8, as the valve body 31 is rotationally driven to one side in the rotation direction, after all the openings of the radiator port 221 and the heater port 222 and the device port 223 reach the predetermined openings. The drive unit 70 and the valve body 31 can be controlled so that the heater port 222 and the device port 223 are closed in the order of the device port 223 and the heater port 222.

Therefore, for example, the cooling efficiency of the engine 2 can be improved while maintaining the heating performance in winter.

Next, the flow diagram of the cooling water in the valve device 10 of the present embodiment will be described in detail with reference to FIG. 122.

As shown in FIG. 122, when the rotation position of the valve body 31 is 0 which is the reference position (when the rotation position Pr0 in FIG. 122), that is, one of the first regulation convex portion 332 or the second regulation convex portion 342 When the rotation of the valve body 31 is restricted by abutting on the regulating portion 631, the opening degrees of the radiator port 221, the heater port 222, and the device port 223 are all 0% (fully closed). Hereinafter, when described as Pr0 to 13, it means the rotation position Pr0 to 13 in FIG. 122.

The method of changing the opening degree of the radiator port 221 and the heater port 222 and the device port 223 with the rotation of the valve body 31 is described because the rotation position of the valve body 31 is the same as that of the fifteenth embodiment from Pr0 to 8. Is omitted.

When the valve body 31 is further rotationally driven from Pr8 to one side in the rotation direction, the opening degree of the device port 223 between Pr9 and Pr10 decreases from 100% at a predetermined rate. As a result, the amount of cooling water flowing to the device 7 side decreases according to the opening degree of the device port 223. The opening degree of the device port 223 becomes 0% (fully closed) at Pr10. As a result, the device port 223 is closed and the flow of cooling water to the device 7 side is cut off.

When the valve body 31 is further rotationally driven to one side in the rotation direction, the opening degree of the heater port 222 between Pr11 and Pr12 decreases from 100% at a predetermined rate. As a result, the amount of cooling water flowing to the heater 6 side decreases according to the opening degree of the heater port 222. The opening degree of the heater port 222 becomes 0% (fully closed) at Pr12. As a result, the heater port 222 is closed and the flow of cooling water to the heater 6 side is cut off.

Here, the rate of decrease in the opening degree of the device port 223 between Pr9 and Pr10 per unit rotation angle of the valve body 31 is the same as the rate of decrease in the opening degree of the heater port 222 between Pr11 and Pr12. ..

When the valve body 31 is further rotationally driven to one side in the rotational direction, the other of the first regulated convex portion 332 or the second regulated convex portion 342 abuts on the restricting portion 631 at Pr13, and the rotational drive of the valve body 31 is stopped. .. At this time, the opening degree of the radiator port 221 remains 100%. That is, at this time, the opening degree of only the radiator port 221 is 100% (fully open: the predetermined opening degree).

In the present embodiment, as described above, in the ECU 8, as the valve body 31 is rotationally driven to one side in the rotation direction, all the openings of the radiator port 221 and the heater port 222 and the device port 223 are opened at Pr8. After reaching the degree (100%), the device port 223 and the heater port 222 are closed at Pr10 and Pr12, and the drive unit 70 and the valve body are opened so that only the radiator port 221 at Pr13 has the predetermined opening (100%). 31 can be controlled.

Further, in the present embodiment, as described above, in the ECU 8, as the valve body 31 is rotationally driven to one side in the rotation direction, all the openings of the radiator port 221 and the heater port 222 and the device port 223 are set to Pr8. After the predetermined opening degree (100%) is reached, the drive unit 70 and the valve body 31 can be controlled so that the heater port 222 and the device port 223 are closed in the order of the device port 223 and the heater port 222 (Pr10, Pr12).

(23rd Embodiment)
The valve device according to the 23rd embodiment will be described with reference to FIG. 123. The 23rd embodiment is different from the 15th embodiment in the configuration of the valve body 31, the method of controlling the drive unit 70 and the valve body 31 and the like.

In the present embodiment, the formation positions and sizes of the valve body openings 410, 420, and 430 in the circumferential direction of the valve body 31 are different from those in the fifteenth embodiment.

<12-4>
As shown in FIG. 123, in the ECU 8, as the valve body 31 is rotationally driven to one side in the rotation direction, after all the openings of the radiator port 221 and the heater port 222 and the device port 223 reach the predetermined opening. , The drive unit 70 and the valve body 31 can be controlled so that the heater port 222 and the device port 223 are closed at the same time.

Therefore, when the load of the engine 2 is high, the heat exchange from the heater 6 and the device 7 can be immediately cut off, and the cooling speed and the cooling efficiency of the engine 2 can be increased.

Next, the flow diagram of the cooling water in the valve device 10 of the present embodiment will be described in detail with reference to FIG. 123.

As shown in FIG. 123, when the rotation position of the valve body 31 is 0 which is the reference position (when the rotation position Pr0 in FIG. 123), that is, one of the first regulation convex portion 332 or the second regulation convex portion 342 When the rotation of the valve body 31 is restricted by abutting on the regulating portion 631, the opening degrees of the radiator port 221, the heater port 222, and the device port 223 are all 0% (fully closed). Hereinafter, when described as Pr0 to 11, it means the rotation position Pr0 to 11 in FIG. 123.

The method of changing the opening degree of the radiator port 221 and the heater port 222 and the device port 223 with the rotation of the valve body 31 is described because the rotation position of the valve body 31 is the same as that of the fifteenth embodiment from Pr0 to 8. Is omitted.

When the valve body 31 is further rotationally driven from Pr8 to one side in the rotation direction, the opening degree of the heater port 222 and the opening degree of the device port 223 decrease from 100% to a predetermined ratio between Pr9 and Pr10. As a result, the amount of cooling water flowing to the heater 6 side and the device 7 side decreases according to the opening degree of the heater port 222 and the opening degree of the device port 223. The opening degree of the heater port 222 and the opening degree of the device port 223 are 0% (fully closed) at Pr10. As a result, the heater port 222 and the device port 223 are closed, and the flow of cooling water to the heater 6 side and the device 7 side is cut off.

Here, the rate of decrease in the opening degree of the heater port 222 between Pr9 and Pr10 per unit rotation angle of the valve body 31 is the same as the rate of decrease in the opening degree of the device port 223 between Pr9 and Pr10. ..

When the valve body 31 is further rotationally driven to one side in the rotational direction, the other of the first regulated convex portion 332 or the second regulated convex portion 342 abuts on the restricting portion 631 at Pr11, and the rotational drive of the valve body 31 is stopped. .. At this time, the opening degree of the radiator port 221 remains 100%. That is, at this time, the opening degree of only the radiator port 221 is 100% (fully open: the predetermined opening degree).

In the present embodiment, as described above, in the ECU 8, as the valve body 31 is rotationally driven to one side in the rotation direction, all the openings of the radiator port 221 and the heater port 222 and the device port 223 are opened at Pr8. After reaching the degree (100%), the heater port 222 and the device port 223 are closed at Pr10, and the drive unit 70 and the valve body 31 are set so that the opening of only the radiator port 221 at Pr11 becomes the predetermined opening (100%). It is controllable.

Further, in the present embodiment, as described above, in the ECU 8, as the valve body 31 is rotationally driven to one side in the rotation direction, all the openings of the radiator port 221 and the heater port 222 and the device port 223 are set to Pr8. The drive unit 70 and the valve body 31 can be controlled so that the heater port 222 and the device port 223 are closed at the same time (Pr10) after the predetermined opening degree (100%) is reached.

(24th Embodiment)
The valve device according to the 24th embodiment will be described with reference to FIGS. 124 and 125. The 24th embodiment is different from the 15th embodiment in the configuration of the valve body 31, the method of controlling the drive unit 70 and the valve body 31 and the like.

In the present embodiment, the formation positions and sizes of the valve body openings 410, 420, and 430 in the circumferential direction of the valve body 31 are different from those in the fifteenth embodiment.

<12-5> Flow Diagram The present embodiment is a valve device 10 capable of controlling the cooling water of the engine 2 of the vehicle 1, and includes a housing 20, a valve 30, a drive unit 70, and an ECU 8 as a control unit.

As shown in FIGS. 124 and 125, the ECU 8 has a normal mode in which the valve body 31 is rotated on one side with respect to 0 (degrees), which is a reference position in the rotation direction, in winter, for example, when the environmental temperature is equal to or lower than a predetermined temperature. The valve body 31 is rotationally driven by, for example, in the summer when the environmental temperature is higher than a predetermined temperature, the valve body 31 is rotationally driven in a cooling priority mode in which the valve body 31 is rotated on the other side with respect to the reference position in the rotation direction. .. In another embodiment, the ECU 8 rotates and drives the valve body 31 in the normal mode when the air conditioner is off and in the cooling priority mode when the air conditioner is on, depending on the operating state of the air conditioner as the vehicle state. You may switch between the normal mode and the cooling priority mode. Further, the ECU 8 may switch between the normal mode and the cooling priority mode according to both the vehicle environment and the vehicle state. Further, the ECU 8 uses the "vehicle environment such as the outside air temperature, the temperature inside the vehicle, or the temperature difference between the outside air temperature and the temperature inside the vehicle" and / or "the load state of the engine 2, the vehicle speed, or the acceleration of the vehicle 1." The normal mode and the cooling priority mode may be switched according to the vehicle state other than the operating state of the air conditioner such as the state.

The ECU 8 can control the drive unit 70 and the valve body 31 so that the opening degree of only the radiator port 221 becomes a predetermined opening degree larger than 0 at a specific rotation position of the valve body 31 in the normal mode.

Therefore, even in the normal mode, the predetermined opening is set to a degree that can increase the cooling efficiency of the engine 2, and the drive unit 70 and the valve are set so that the opening of only the radiator port 221 becomes the predetermined opening. By controlling the body 31, it is possible to maximize the cooling efficiency of the engine 2 when the load is high.

<12-6>
As shown in FIGS. 124 and 125, the ECU 8 can control the drive unit 70 and the valve body 31 so that the radiator port 221 has the predetermined opening degree on both sides of the normal mode and the cooling priority mode.

Therefore, it is possible to increase the cooling efficiency of the engine 2 when the load is high in either the normal mode or the cooling priority mode.

<12-7>
As shown in FIGS. 124 and 125, the ECU 8 can control the drive unit 70 and the valve body 31 so that the opening degrees of the radiator port 221 and the heater port 222 or the device port 223 are independently set to the predetermined opening degrees.

Therefore, it is possible to concentrate the area around the cooling water on the required portion and improve the efficiency of heat exchange.

<12-8>
As shown in FIGS. 124 and 125, the ECU 8 can control the drive unit 70 and the valve body 31 so that all the openings of the radiator port 221 and the heater port 222 and the device port 223 become the predetermined openings in the normal mode. Is.

Therefore, in the normal mode, heat can be exchanged in all of the radiator 5, the heater 6, and the device 7, and the engine 2 can be cooled while ensuring the heating performance.

<12-9>
The predetermined opening degree is set to 60% or more.

Therefore, by controlling the drive unit 70 and the valve body 31 so that the opening degree of only the radiator port 221 becomes the predetermined opening position at a specific rotation position of the valve body 31 in the normal mode, the engine 2 can be operated even in the normal mode. It is possible to appropriately maximize the cooling efficiency under high load.

Further, by controlling the drive unit 70 and the valve body 31 so that the radiator port 221 has the predetermined opening degree on both sides of the normal mode and the cooling priority mode, the engine 2 can be used in either the normal mode or the cooling priority mode. The cooling efficiency under high load can be appropriately increased.

Further, by controlling the drive unit 70 and the valve body 31 so that the opening degrees of the radiator port 221 and the heater port 222 or the device port 223 are independently set to the predetermined opening positions, the cooling water is concentrated around the required parts. It is possible to appropriately increase the efficiency of heat exchange.

Further, by controlling the drive unit 70 and the valve body 31 so that all the openings of the radiator port 221 and the heater port 222 and the device port 223 become the predetermined openings in the normal mode, the radiator 5 may be operated in the normal mode. Heat can be exchanged in all of the heater 6 and the device 7, and the engine 2 can be appropriately cooled while ensuring the heating performance.

In this embodiment, the predetermined opening degree is set to 100% in order to maximize the cooling efficiency of the engine 2.

Therefore, the cooling efficiency of the engine 2 when the load is high can be maximized.

Next, the flow diagram of the cooling water in the valve device 10 of the present embodiment will be described in detail with reference to FIGS. 124 and 125.

As shown in FIGS. 124 and 125, when the rotation position of the valve body 31 is 0 (degrees) which is the reference position (when the rotation position Pr0 in FIG. 125), the radiator port 221 and the heater port 222 and the device port 223 are opened. The degree is 0% (fully closed) in each case. Hereinafter, when described as Pr-5 to 10, it means the rotation position Pr-5 to 10 in FIG. 125.

As described above, the ECU 8 has a normal mode in which the valve body 31 is rotated on one side (Pr0 to 10) with respect to 0 (degrees), which is a reference position in the rotation direction, depending on the vehicle environment and / or the vehicle state, or The valve body 31 is rotationally driven in a cooling priority mode in which the valve body 31 is rotated on the other side (Pr0 to −5) with respect to the reference position in the rotation direction.

By controlling the valve body 31 in the normal mode of the ECU 8, the valve body 31 is rotationally driven to one side in the rotation direction, and when the rotation position of the valve body 31 increases from 0, the heater port 222 is located between Pr1 and Pr2. The opening degree increases from 0 (%) at a predetermined rate. As a result, an amount of cooling water corresponding to the opening degree of the heater port 222 flows to the heater 6 side. The opening degree of the heater port 222 reaches 100% (fully open: the predetermined opening degree) at Pr2.

When the valve body 31 is further rotationally driven to one side in the rotation direction, the opening degree of the device port 223 between Pr3 and Pr4 increases from 0 (%) at a predetermined rate. As a result, an amount of cooling water corresponding to the opening degree of the device port 223 flows to the device 7 side. The opening degree of the device port 223 reaches 100% (fully open: the predetermined opening degree) at Pr4.

Here, the rate of increase in the opening degree of the heater port 222 between Pr1 and Pr2 per unit rotation angle of the valve body 31 is the same as the rate of increase in the opening degree of the device port 223 between Pr3 and Pr4. (See FIGS. 124 and 125).

When the valve body 31 is further rotationally driven to one side in the rotation direction, the opening degree of the radiator port 221 between Pr5 and Pr6 increases from 0 (%) at a predetermined rate. As a result, an amount of cooling water corresponding to the opening degree of the radiator port 221 flows to the radiator 5 side.

When the valve body 31 is further rotationally driven to one side in the rotation direction, the opening degree of the radiator port 221 is further increased by a predetermined ratio between Pr6 and Pr7. The opening degree of the radiator port 221 reaches 100% (fully open: the predetermined opening degree) at Pr7. Therefore, in Pr7, all the openings of the radiator port 221 and the heater port 222 and the device port 223 become the predetermined opening, that is, 100%.

Here, the rate of increase in the opening degree of the radiator port 221 between Pr5 and Pr6 per unit rotation angle of the valve body 31 is smaller than the rate of increase in the opening degree of the radiator port 221 between Pr6 and Pr7 (FIG. See 124 and 125). This is because the radiator opening 410 is formed from the stretched opening 413 and the large opening 412 (see FIGS. 93, 94, etc.).

Therefore, the flow rate of the cooling water to the radiator 5 can be gradually increased at the initial stage of opening the radiator port 221. This makes it possible to suppress a sudden temperature change of the cooling water due to heat exchange of the radiator 5 in the normal mode.

Further, the rate of increase in the opening degree of the radiator port 221 between Pr5 and Pr6 and the rate of increase in the opening degree of the radiator port 221 between Pr6 and Pr7 per unit rotation angle of the valve body 31 are as high as Pr1. It is smaller than the rate of increase in the opening degree of the heater port 222 between Pr2 and the rate of increase in the opening degree of the device port 223 between Pr3 and Pr4 (see FIGS. 124 and 125).

Therefore, the change in the flow rate of the cooling water to the radiator 5 at the initial stage of valve opening can be made gentler than the change in the flow rate of the cooling water to the heater 6 and the device 7. This makes it possible to suppress a sudden temperature change of the cooling water due to heat exchange of the radiator 5 in the normal mode.

When the valve body 31 is further rotationally driven to one side in the rotation direction, the opening degree of the heater port 222 and the opening degree of the device port 223 decrease from 100% to a predetermined ratio between Pr8 and Pr9. As a result, the amount of cooling water flowing to the heater 6 side and the device 7 side decreases according to the opening degree of the heater port 222 and the opening degree of the device port 223. The opening degree of the heater port 222 and the opening degree of the device port 223 are 0% (fully closed) at Pr9. As a result, the heater port 222 and the device port 223 are closed, and the flow of cooling water to the heater 6 side and the device 7 side is cut off.

Here, the rate of decrease in the opening degree of the heater port 222 between Pr8 and Pr9 per unit rotation angle of the valve body 31 is the same as the rate of decrease in the opening degree of the device port 223 between Pr8 and Pr9. (See FIGS. 124 and 125).

When the valve body 31 is further rotationally driven to one side in the rotational direction, one of the first regulated convex portion 332 or the second regulated convex portion 342 abuts on the regulated portion 631 at Pr10, and the rotational drive of the valve body 31 is stopped. .. At this time, the opening degree of the radiator port 221 remains 100%. That is, at this time, the opening degree of only the radiator port 221 is 100% (fully open: the predetermined opening degree).

By controlling the valve body 31 by the cooling priority mode of the ECU 8, the valve body 31 is rotationally driven to the other side in the rotation direction, and when the rotation position of the valve body 31 becomes smaller than 0, between Pr-1 and Pr-2. , The opening degree of the device port 223 increases from 0 (%) at a predetermined rate. As a result, an amount of cooling water corresponding to the opening degree of the device port 223 flows to the device 7 side. The opening degree of the device port 223 reaches 100% (fully open: the predetermined opening degree) at Pr-2.

Here, the rate of increase in the opening degree of the device port 223 between Pr-1 and Pr-2 per unit rotation angle of the valve body 31 is the rate of increase in the opening degree of the device port 223 between Pr3 and Pr4. Is the same as (see FIGS. 124 and 125).

When the valve body 31 is further rotationally driven to the other side in the rotation direction, the opening degree of the radiator port 221 between Pr-3 and Pr-4 increases from 0 (%) at a predetermined rate. As a result, an amount of cooling water corresponding to the opening degree of the radiator port 221 flows to the radiator 5 side. The opening degree of the radiator port 221 reaches 100% (fully open: the predetermined opening degree) at Pr-4. Therefore, in Pr-4, the opening degree of the radiator port 221 and the device port 223 becomes the predetermined opening degree, that is, 100%.

Here, the rate of increase in the opening degree of the radiator port 221 between Pr-3 and Pr-4 per unit rotation angle of the valve body 31 is the rate of increase in the opening degree of the radiator port 221 between Pr6 and Pr7. Is the same as (see FIGS. 124 and 125).

When the valve body 31 is further rotationally driven to the other side in the rotational direction, the other of the first regulated convex portion 332 or the second regulated convex portion 342 abuts on the restricting portion 631 at Pr-5, and the rotational drive of the valve body 31 is performed. Stop. At this time, the opening degree of the radiator port 221 and the opening degree of the device port 223 remain at 100%. That is, at this time, the opening degree of the radiator port 221 and the opening degree of the device port 223 are 100% (fully open: the predetermined opening degree).

In the present embodiment, as described above, the ECU 8 drives the drive unit 70 so that the opening degree of only the radiator port 221 becomes a predetermined opening degree larger than 0 in Pr9 to 10 which is a specific rotation position of the valve body 31 in the normal mode. And the valve body 31 can be controlled.

Further, the ECU 8 can control the drive unit 70 and the valve body 31 so that the radiator port 221 has the predetermined opening degree in Pr7 to 10 in the normal mode and Pr-4 to -5 in the cooling priority mode.

Further, the ECU 8 has a drive unit 70 such that the opening degrees of the radiator port 221 and the heater port 222 or the device port 223 are independently set to the predetermined opening degrees in Pr9 to 10, Pr2 to 3, and Pr-2 to -3, respectively. And the valve body 31 can be controlled.

Further, the ECU 8 can control the drive unit 70 and the valve body 31 so that all the openings of the radiator port 221 and the heater port 222 and the device port 223 become the predetermined openings in Pr7 to 8 in the normal mode.

(25th Embodiment)
FIG. 126 shows a part of the valve device according to the 25th embodiment. The 25th embodiment is different from the 1st embodiment in the configuration in the vicinity of the bearing portion 602.

<6-23>
As shown in FIG. 126, the present embodiment includes a shaft seal portion 96 instead of the shaft seal member 603.

The shaft seal portion 96 is provided in the shaft insertion hole 62, and the annular seal portion annular member 97 whose inner edge portion can abut on the outer peripheral wall of the shaft 32 and the annular seal portion annular member 97 which is softer than the seal portion annular member 97 and whose inner edge portion is the shaft 32. It has an annular shaft seal member 98 that is in contact with the outer peripheral wall and can be held liquidtightly between the shaft 32 and the shaft 32.

In this embodiment, the inlet port 220 is formed on the radial outer side of the shaft 32. Therefore, the cooling water that has flowed into the internal space 200 from the inlet port 220 collides with the outer peripheral wall of the shaft 32, and the shaft 32 is likely to be shaken. If shaft shake occurs in the shaft 32, the load on the shaft seal member 98 may increase.

Therefore, in the present embodiment, the shaft seal portion 96 having the above configuration is provided, and the shaft shake of the shaft 32 is suppressed by the seal portion annular member 97 to reduce the load on the shaft seal member 98 due to the shaft shake. As a result, deterioration of the sealing property due to deterioration, wear, deformation, etc. of the shaft seal member 98 can be suppressed.

<6-24>
The shaft seal portion 96 further has a seal portion holding member 99 that is harder than the seal portion annular member 97 and can hold the seal portion annular member 97 and the shaft seal member 98 in the shaft insertion hole 62.

Therefore, the positions of the seal portion annular member 97 and the shaft seal member 98 in the shaft insertion hole 62 can be stabilized. Therefore, the annular member 97 of the seal portion can effectively suppress the shaft shake of the shaft 32, and can effectively reduce the load on the shaft seal member 98 due to the shaft shake.

<6-25>
The seal portion annular member 97 is made of resin. The shaft seal member 98 is made of rubber. The seal portion holding member 99 is made of metal.

Therefore, the seal portion annular member 97 effectively suppresses the shaft shake of the shaft 32, the sealing property of the shaft seal member 98 is ensured, and the seal portion holding member 99 stabilizes the seal portion annular member 97 and the shaft seal member 98. Can be held.

<6-26>
The shaft seal member 98 includes a first shaft seal member 981 that abuts on the outer peripheral wall of the shaft 32 on the valve body 31 side with respect to a contact portion between the seal portion annular member 97 and the outer peripheral wall of the shaft 32, and a seal portion annular member. It has a second shaft seal member 982 that abuts on the outer peripheral wall of the shaft 32 on the drive unit 70 side with respect to the contact portion between the 97 and the outer peripheral wall of the shaft 32.

Therefore, the one seal portion annular member 97 can suppress the shaft shake of the shaft 32 and reduce the load on the first shaft seal member 981 and the second shaft seal member 982 due to the shaft shake. Further, the first shaft seal member 981 and the second shaft seal member 982 that abut on the outer peripheral wall of the shaft 32 on the valve body 31 side and the drive portion 70 side of the seal portion annular member 97 further improve the sealing property of the outer periphery of the shaft 32. Can be enhanced.

Hereinafter, the configuration of the shaft seal portion 96 will be described in more detail.

The seal portion annular member 97 is formed in an annular shape by, for example, a resin such as PTFE (polytetrafluoroethylene). The sealing portion annular member 97 is provided with an inner edge portion slidably abutting against the outer peripheral wall of the shaft 32. By forming the seal portion annular member 97 with PTFE having a small friction coefficient, the shaft 32 can smoothly rotate inside the seal portion annular member 97. The seal portion annular member 97 is provided on the valve body 31 side with respect to the partition wall through hole 65 (see FIG. 126).

The first shaft seal member 981 is formed in an annular shape so as to be elastically deformable by, for example, rubber such as EPDM (ethylene propylene rubber). The first shaft seal member 981 abuts on the valve body 31 side with respect to the contact portion between the seal portion annular member 97 and the outer peripheral wall of the shaft 32 so that the inner edge portion is in close contact with the outer peripheral wall of the shaft 32. Here, the inner edge portion of the first shaft seal member 981 is slidable with the outer peripheral wall of the shaft 32. The seal portion annular member 97 is located inside the first shaft seal member 981 (see FIG. 126).

The second shaft seal member 982 is formed in an annular shape so as to be elastically deformable by rubber such as NBR (nitrile rubber). The second shaft seal member 982 abuts on the drive portion 70 side with respect to the contact portion between the seal portion annular member 97 and the outer peripheral wall of the shaft 32 so that the inner edge portion is in close contact with the outer peripheral wall of the shaft 32. Here, the inner edge portion of the second shaft seal member 982 is slidable with the outer peripheral wall of the shaft 32. The second shaft seal member 982 is provided between the partition wall through hole 65 and the bearing portion 602 in the axial direction of the shaft 32 (see FIG. 126).

The seal portion holding member 99 has an outer seal portion holding member 990 and an inner seal portion holding member 991, 992, 993. The outer seal portion holding member 990 and the inner seal portion holding members 991, 992, 993 are formed of, for example, metal.

The outer seal portion holding member 990 is formed in a cylindrical shape, and the outer peripheral wall is provided so as to fit into the shaft insertion hole 62. The outer seal portion holding member 990 holds the first shaft seal member 981 so that the inner peripheral wall abuts on the outer peripheral wall of the first shaft seal member 981.

The inner seal portion holding member 991 is formed in an annular shape, and the end portion of the first shaft seal member 981 on the valve body 31 side and the outer seal portion holding member so that the outer edge portion fits into the inner peripheral wall of the outer seal portion holding member 990. It is provided between the 990 and the 990. The inner seal portion holding member 991 holds the end portion of the first shaft seal member 981 on the valve body 31 side.

The inner seal portion holding member 992 is formed in a cylindrical shape, and the outer seal portion holding member 990 and the first shaft seal are formed so that the outer peripheral wall abuts on the inner peripheral wall of the end portion of the first shaft seal member 981 on the drive portion 70 side. It is provided inside the end portion of the member 981 on the drive portion 70 side. The inner seal portion holding member 992 holds the seal portion annular member 97 so that the inner peripheral wall abuts on the outer edge portion of the seal portion annular member 97.

The inner seal portion holding member 993 is formed in an annular shape, and is provided inside the end portion of the inner seal portion holding member 992 on the drive portion 70 side so that the outer edge portion fits into the inner peripheral wall of the inner seal portion holding member 992. ing. The inner seal portion holding member 993 holds the seal portion annular member 97 so that the end portion on the valve body 31 side abuts on the surface of the seal portion annular member 97 on the drive portion 70 side.

Here, the seal portion annular member 97 and the inner seal portion holding members 992 and 993 are provided inside the elastically deformable first shaft seal member 981 so that they are radially inside the shaft insertion hole 62. It can be moved integrally. Therefore, the annular member 97 of the seal portion can more effectively suppress the shaft shake of the shaft 32.

As described above, in the present embodiment, an example is shown in which the first shaft seal member 981 is formed of EPDM and the second shaft seal member 982 is formed of NBR. On the other hand, in another embodiment, the first shaft seal member 981 may be formed of NBR and the second shaft seal member 982 may be formed of EPDM. Further, in another embodiment, both the first shaft seal member 981 and the second shaft seal member 982 may be formed by NBR. In still another embodiment, both the first shaft seal member 981 and the second shaft seal member 982 may be formed by EPDM.

Further, in the present embodiment, an example in which the valve device 10 is attached to the engine 2 so that the shaft 32 is along the vertical direction is shown. On the other hand, in another embodiment, the valve device 10 may be attached to the engine 2 so that the shaft 32 is perpendicular to the vertical direction or is inclined. In this case, although there is a possibility that the shaft 32 may be biased due to gravity, the seal portion annular member 97 can suppress the shaft deviation of the shaft 32 due to gravity.

(26th Embodiment)
The valve device and cooling system according to the 26th embodiment are shown in FIG. 127. The 26th embodiment is different from the 1st embodiment in the arrangement of the water pump 4, the direction in which the cooling water flows, and the like.

In the present embodiment, the suction port and the discharge port of the water pump 4 are provided so as to be opposite to those of the first embodiment. The water pump 4 is provided on the outlet side of the water jacket 3, sucks the cooling water flowing through the water jacket 3, and pumps the sucked cooling water toward the radiator 5, the heater 6, and the device 7.

The outlet of the radiator 5 is connected to the outlet port 221 of the valve device 10. The outlet of the heater 6 is connected to the outlet port 222 of the valve device 10. The outlet of the device 7 is connected to the outlet port 223 of the valve device 10. The valve device 10 is attached to the engine 2 so that the inlet port 220 connects to the inlet of the water jacket 3.

The cooling water that has flowed through the radiator 5, the heater 6, and the device 7 flows into the valve device 10 from the outlet ports 221, 222, 223, and flows into the water jacket 3 from the inlet port 220. The valve device 10 adjusts the flow rate of the cooling water flowing from the radiator 5, the heater 6, and the device 7 to the water jacket 3.

In this way, the valve device 10 can also be used such that the cooling water flows in from the three outlet ports (221 to 223) and the cooling water flows out from one inlet port (220).

In the above embodiment, an example is shown in which the valve device 10 is attached to the engine 2 so that the inlet port 220 is connected to the inlet of the water jacket 3. On the other hand, in another embodiment, the inlet port 220 and the water jacket 3 may be connected via a member such as a pipe, and the housing 20 of the valve device 10 may be provided away from the engine 2.

(Other embodiments)
<3-7-1>
With respect to the third embodiment, the first regulation convex portion 332 may be formed at a position away from the second regulation convex portion 342.

<3-7-2>
Further, the distance between the first regulated convex portion 332 and the rotating shaft Axr1 may be the same as or different from the distance between the second regulated convex portion 342 and the rotating shaft Axr1.

When the distance between the first regulated convex portion 332 and the rotating shaft Axr1 and the distance between the second regulated convex portion 342 and the rotating shaft Axr1 are the same, the first regulated convex portion 332 and the second regulated convex portion 342 are regulated. The contact load when the valve body 31 abuts on the portion 631 and the rotation of the valve body 31 is restricted can be made the same.

<6-1-16-1>
With respect to the thirteenth embodiment, the partition wall through hole 65 may be formed so that its cross-sectional area gradually increases from the radial outer side to the radial inner side of the shaft insertion hole 62.

In this case, even if water or the like enters from the outside via the housing through hole 270, it is possible to suppress the water or the like from flowing to the shaft insertion hole 62 via the partition wall through hole 65.

In the above-described embodiment, an example in which the housing main body 21 and the partition wall portion 60 are formed separately is shown. On the other hand, in another embodiment, the housing main body 21 and the partition wall portion 60 may be integrally formed.

Further, in the above-described embodiment, an example is shown in which the inlet port 220, the exit ports 221-223, and the relief port 224 are formed in the directions orthogonal to the axis of the shaft 32. On the other hand, in another embodiment, the inlet port 220, the outlet ports 221-223, and the relief port 224 may be formed in the axial direction of the shaft 32. Further, the valve device 10 may be used so that the cooling water flows in from the outlet ports 221 to 223 and the cooling water flows out from the inlet port 220. Further, any number of inlet ports, outlet ports, and relief ports may be formed on the housing main body 21.

In the above embodiment, an example of applying the valve device 10 to the engine 2 as a heating element is shown. On the other hand, in another embodiment, it may be adopted as a valve device for controlling cooling water of a battery as a heating element mounted on a hybrid vehicle, an electric vehicle, or the like.

Further, the valve device 10 may be attached to the heating element in any posture.

In the above embodiment, an example is shown in which the drive unit cover 80 has six cover fixing portions. On the other hand, in another embodiment, the cover fixing portion is not limited to six but may be formed in any number such as five with respect to the cover main body 81.

<12-10>
In the above-mentioned fifteenth embodiment, an example in which the outer peripheral wall and the inner peripheral wall of the valve body 31 are formed in a spherical shape is shown. On the other hand, in another embodiment, the valve body 31 may have an outer peripheral wall and an inner peripheral wall formed in a cylindrical shape. Further, the valve body 31 may have at least a part of the outer peripheral wall formed in a spherical shape or a cylindrical shape. Even with a rotary valve having such a shape, the same effect as that of the fifteenth embodiment can be obtained.

The controls and methods thereof described in the present disclosure are realized by a dedicated computer provided by configuring a processor and memory programmed to perform one or more functions embodied by a computer program. May be done. Alternatively, the controls and methods thereof described in the present disclosure may be implemented by a dedicated computer provided by configuring the processor with one or more dedicated hardware logic circuits. Alternatively, the control unit and method thereof described in the present disclosure may be a combination of a processor and memory programmed to perform one or more functions and a processor composed of one or more hardware logic circuits. It may be realized by one or more dedicated computers configured. Further, the computer program may be stored in a computer-readable non-transitional tangible recording medium as an instruction executed by the computer.

As described above, the present disclosure is not limited to the above embodiment, and can be implemented in various forms without departing from the gist thereof.

<1><Problems>
For example, in the valve device described in Patent Document 1, the inlet port or the outlet port is connected to the internal combustion engine of the vehicle via a hose or the like. Here, when the inlet port or the outlet port is directly connected to the internal combustion engine without using a hose or the like, the seal between the inlet port or the outlet port and the internal combustion engine depends on the arrangement of the fastening points between the valve device and the internal combustion engine. There is a risk that the property will deteriorate and the cooling water will leak to the outside.

An object of the present disclosure is to provide a valve device capable of suppressing leakage of cooling water from a heating element of a vehicle.

<1><Means>
<1-1>
The first aspect of the present disclosure is a valve device capable of controlling cooling water of a heating element of a vehicle, including a housing and a valve. The housing body is fixed to the heating element by a fastening member that passes through the fastening hole and is screwed onto the heating element. At least three fastening holes are formed. The opening of the port is formed inside a triangle formed by connecting three fastening holes.

Therefore, when a sealing member made of an annular elastic member is provided around the port, the sealing member can be compressed in a well-balanced manner when the housing body is fixed to the heating element by the fastening member passing through the three fastening holes. As a result, the sealing property around the port can be effectively secured.

<1-2>
The second aspect of the present disclosure is a valve device capable of controlling cooling water of a heating element of a vehicle, which includes a housing, a valve, a partition wall portion, and a drive portion. The housing body is fixed to the heating element by a fastening member that passes through the fastening hole and is screwed onto the heating element. The fastening holes are a first fastening hole formed radially outside the opening of the port, a second fastening hole formed so as to sandwich the opening of the port between the first fastening hole, and a first fastening hole and a first fastening hole. 2 Includes a third fastening hole formed on the drive unit side with respect to the fastening hole.

Therefore, when a sealing member made of an annular elastic member is provided around the port, the sealing member can be compressed in a well-balanced manner when the housing body is fixed to the heating element by the fastening member passing through the first fastening hole and the second fastening hole. .. As a result, the sealing property around the port can be effectively secured.

Further, by fixing the fastening portion to the heating element by the fastening member passing through the third fastening hole, it is possible to suppress the influence of the vibration of the heating element on the driving portion.

Hereinafter, technical ideas other than those described in the claims grasped from each embodiment will be described.

<1-2-1>
The center of the opening of the port is a valve device located on a straight line connecting the first fastening hole and the second fastening hole.

<1-2-2>
A valve device in which the distance between the center of the opening of the port and the first fastening hole is the same as the distance between the center of the opening of the port and the second fastening hole.

<1-2-3>
A valve device in which the distance between the third fastening hole and the driving unit is shorter than the distance between the third fastening hole and the center of the opening of the port.

<1-2-4>
The third fastening hole is a valve device whose center is formed so as to be located on the drive unit 70 side with respect to a virtual plane that passes through the center of the outlet port 223 and is orthogonal to the rotation axis Axr1.

<1-3-1>
The first fastening hole and the second fastening hole, which are point-symmetrical with respect to the center of the opening of the port, are perpendicular to the opening surface of the port, and a straight line passing through the center of the opening of the port serves as the axis of rotation. A valve device that is formed to pass through.

<1-4-1>
The first positioning portion and the second positioning portion are a second straight line connecting the first positioning portion and the second positioning portion with respect to a first straight line connecting the first fastening hole and the second fastening hole. A valve device that is formed so that they are orthogonal to each other.

<1-4-2>
A valve device in which the center of the first straight line and the center of the second straight line coincide with each other.

<1-5-1>
A valve device in which a plurality of mounting surface recesses are formed, and ribs between the recesses are formed between the plurality of mounting surface recesses.

<1-1-5-1>
The housing body is a valve device made of polyphenylene sulfide resin containing a filler.

<2-1-1>
An annular seal member provided between the housing opening and the partition wall and capable of liquid-tightly holding between the housing opening and the partition wall is further provided.
The inner wall of the housing opening is formed in a cylindrical shape.
The partition wall has a partition wall body located inside the housing opening and having a cylindrical outer wall.
The annular seal member is provided between the housing opening and the partition wall main body, and is provided.
A valve device in which the difference between the inner diameter of the housing opening and the outer diameter of the partition wall body is smaller than the difference between the inner diameter and the outer diameter of the annular seal member in a free state.

<2-2-1>
A valve device in which an axial gap is formed in at least one of the housing body and the partition wall portion in the axial direction of the annular seal member.

<3-4-1>
The valve body has an inner peripheral wall in the rotation axis direction and the circumferential direction at least in a range corresponding to the seal opening when all of the seal openings are closed by the outer peripheral wall of the valve body. A valve device with the same distance from the outer wall.

<3-7-1>
The first regulation convex portion is a valve device formed at a position away from the second regulation convex portion.

<3-7-2>
A valve device in which the distance between the first regulated convex portion and the rotating shaft is the same as the distance between the second regulated convex portion and the rotating shaft.

<3-9-1>
The valve body opening rib is a valve device formed in an arc shape at a predetermined distance from the virtual spherical surface.

<3-12-1>
The specific shape portion is a valve device in which an outer wall is formed so as to project outward from the outer peripheral wall of the tubular portion.

<3-12-2>
The specific shape portion is a valve device in which an outer wall is formed so as to be recessed inward from the outer peripheral wall of the tubular portion.

<3-12-3>
The specific shape portion is a valve device having a flat outer wall.

<3-17-1>
A drive unit capable of rotationally driving the valve body via one end of the shaft is further provided.
The valve is provided so that the second outermost end surface faces the drive unit side.
A valve device in which the area of the second outermost end surface is larger than the area of the first outermost end surface.

<3-19-1>
The valve device in which the first end face opening rib, the second end face opening rib, the second valve body opening rib, and the third valve body opening rib are formed at the same position in the circumferential direction of the valve body.

<3-22-23-1>
The first type includes a first outer mold in which a first concave surface corresponding to the shape of the outer peripheral wall of the first divided body is formed, and a first convex surface corresponding to the shape of the inner peripheral wall of the first divided body. Has a formed first internal mold,
The second type has a second outer mold in which a second concave surface corresponding to the shape of the outer peripheral wall of the second divided body is formed, and a second convex surface corresponding to the shape of the inner peripheral wall of the second divided body. It has a second inner mold formed and
When the first divided body and the second divided body are resin-molded in the primary molding step, the first concave surface and the first convex surface are formed in at least a part of the rotation axis direction and the circumferential direction. A method for manufacturing a valve in which the distance and the distance between the second concave surface and the second convex surface are the same.

<3-25-1>
The outer mold has a concave surface corresponding to the shape of the outer peripheral wall of the valve body.
The inner mold has a convex surface corresponding to the shape of the inner peripheral wall of the valve body.
A method for manufacturing a valve in which the distance between the concave surface and the convex surface is the same in at least a part of the rotation axis direction and the circumferential direction when the valve body is resin molded in the resin molding step.

<4-1-1>
A plurality of the cover fixing portions are formed, and the cover fixing portion is formed.
The plurality of cover fixing portions are valve devices located on a virtual plane perpendicular to the mounting surface.

<4-2-1>
The partition wall portion is formed separately from the housing body, and is formed separately from the housing body.
The housing body is a valve device having a notch at an end opposite to the mounting surface so that the partition wall is exposed.

<4-3-1>
The connector portion is a valve device formed so as to project from the outer edge portion of the cover body in a direction other than the direction perpendicular to the mounting surface.

<4-3-2>
The connector portion is a valve device formed so as to project from the outer edge portion of the cover body in a direction parallel to the mounting surface.

<5-2-1>
A valve device in which at least the seal unit is provided among the plurality of the ports so that their axes are parallel to each other.

<5-13-1>
A valve device provided between the housing opening and the partition wall and provided with an annular sealing member capable of liquid-tightly holding between the housing opening and the partition wall.

<6-1-1>
The partition wall through hole is a valve device formed so that the cross-sectional shape is oval or rectangular.

<6-2-1>
The housing through hole is a valve device having an oval or rectangular cross-sectional shape.

<6-2-2>
A valve device in which the partition wall through hole and the housing through hole are coaxially formed.

<6-11-1>
Let L be the distance between the axis of the partition wall through hole and the axis of the housing through hole, and D be the size of the housing through hole in the axial direction of the shaft insertion hole.
A valve device in which the partition wall through hole and the housing through hole are formed so as to satisfy the relationship of D ≦ L ≦ 10D.

<6-1-16-1>
The partition wall through hole is a valve device formed so that its cross-sectional area gradually increases from the radially outer side to the radial inner side of the shaft insertion hole.

The minimum basic configuration of each embodiment is shown below.

A valve device (10) capable of controlling the cooling water of the heating element (2) of the vehicle (1).
An internal space (200) formed inside, a housing (20) having a port (220, 221, 222, 223) connecting the internal space and the outside, and a housing (20).
A valve (30) having a valve body (31) provided in the internal space so as to be rotatable around a rotation axis (Axr1) and being able to open and close the port depending on the rotation position of the valve body.
A valve device equipped with.

That is, the components other than the components shown in the minimum basic configuration are not essential elements of each embodiment.

In order to solve the problems described in each embodiment, the technical ideas described in the embodiments can be appropriately combined with the above-mentioned minimum basic configuration.

Hereinafter, typical technical ideas grasped from each embodiment will be described.

<1>
[A01]
A valve device (10) capable of controlling the cooling water of the heating element (2) of the vehicle (1).
A housing body (21) that forms an internal space (200) inside, a mounting surface (201) formed on the outer wall of the housing body so as to face the heating element when attached to the heating element, and the mounting surface. A port (220) that opens to connect the internal space and the outside of the housing body, a plurality of fastening portions (231, 232, 233) integrally formed with the housing body, and a plurality of fastening portions. A housing (20) having a plurality of fastening holes (241, 242, 243) formed corresponding to each, and a housing (20).
A valve (30) having a valve body (31) that can rotate around a rotation axis (Axr1) in the internal space, and a valve body flow path (300) that is formed inside the valve body and can communicate with the port. And, with
The housing body is fixed to the heating element by a fastening member (240) that passes through the fastening hole and is screwed into the heating element.
At least three fastening holes are formed.
The opening of the port is a valve device formed inside a triangle (Ti1) formed by connecting the three fastening holes.

[A02]
A valve device (10) capable of controlling the cooling water of the heating element (2) of the vehicle (1).
A housing body (21) forming an internal space (200) inside, a mounting surface (201) facing the heating element in a state of being formed on the outer wall of the housing body and mounted on the heating element, and an opening in the mounting surface. Each of the port (220) connecting the internal space and the outside of the housing body, the plurality of fastening portions (231, 232, 233) integrally formed with the housing body, and the plurality of fastening portions. A housing (20) having a plurality of correspondingly formed fastening holes (241, 242, 243) and a housing (20).
A valve body (31) that can rotate around a rotation axis (Axr1) in the internal space, a valve body flow path (300) that is formed inside the valve body and can communicate with the port, and a rotation shaft. A valve (30) having a shaft (32)
A partition wall portion (60) that separates the internal space from the outside of the housing body,
A drive unit (70) provided on the side opposite to the internal space with respect to the partition wall portion and capable of rotationally driving the valve body via the shaft is provided.
The housing body is fixed to the heating element by a fastening member (240) that passes through the fastening hole and is screwed into the heating element.
The fastening hole is a first fastening hole (241) formed on the radial outer side of the opening of the port, and a second fastening hole (242) formed so as to sandwich the opening of the port between the first fastening hole and the first fastening hole. ), And a valve device including a third fastening hole (243) formed on the drive unit side with respect to the first fastening hole and the second fastening hole.

[A03]
The valve device according to [A02], wherein the first fastening hole and the second fastening hole are formed so as to be point-symmetrical with respect to the center (Cp1) of the opening of the port.

[A04]
The housing has positioning portions (205, 206) formed on the mounting surface and capable of positioning the housing body by engaging with other members.
The positioning portion is a first positioning portion (205) formed on the radial outer side of the opening of the port, and a second positioning portion formed so as to sandwich the opening of the port between the first positioning portion and the first positioning portion. The valve device according to [A02] or [A03], which comprises (206).

[A05]
The valve device according to any one of [A01] to [A04], wherein the housing has a mounting surface recess (207) recessed from the mounting surface to the side opposite to the heating element.

[A06]
The valve device according to any one of [A02] to [A04], wherein the fastening portion (233) in which the third fastening hole is formed is formed at a position adjacent to the partition wall portion.

[A07]
The valve device according to [A05], wherein the fastening portion has the mounting surface on the heating element side and has the mounting surface recess recessed from the mounting surface to the side opposite to the heating element.

[A08]
The housing is formed between a positioning portion (205, 206) formed on the mounting surface and capable of positioning the housing body by engaging with another member, and a recess formed between a plurality of the mounting surface recesses. Has ribs (208) and
The valve device according to [A07], wherein the positioning portion is formed at a grid point (204) of the rib between the recesses.

[A09]
The housing has positioning portions (205, 206) formed on the mounting surface and capable of positioning the housing body by engaging with other members.
The fastening portion is formed on one side in the width direction of the housing body and two on the other side in the width direction of the housing body.
The valve device according to any one of [A01] to [A08], wherein the positioning portion is formed on one side in the width direction of the housing body in which one fastening portion is formed.

[A10]
The valve device according to [A09], wherein the port is formed between the fastening portion farthest from the port and the positioning portion among the plurality of fastening portions.

[A11]
The fastening portion has two outer walls having a linear shape in a cross section formed by a plane perpendicular to the fastening hole, and is formed so that the angle formed by the two outer walls is an obtuse angle [A01] to [A10]. ] The valve device according to any one of the items.

<2>
[B01]
A valve device (10) capable of controlling the cooling water of the heating element (2) of the vehicle (1).
A housing body (21) that forms an internal space (200) inside, a port (220, 221, 222, 223) that connects the internal space to the outside of the housing body, and the internal space and the housing body. A housing (20) having a housing opening (210) for connecting to the outside,
A valve body (31) that can rotate around a rotation axis (Axr1) in the internal space, a valve body flow path (300) formed inside the valve body, the valve body flow path and the outside of the valve body. It has a valve body opening (410, 420, 430) and a shaft (32) provided on the rotating shaft, and the valve body flow path and the port via the valve body opening. A valve (30) whose communication state can be changed by the rotation position of the valve body, and
A partition wall portion (60) provided in the housing opening so as to separate the internal space from the outside of the housing body and capable of bearing the shaft.
A drive unit cover (80) provided on the side opposite to the internal space with respect to the partition wall portion and forming a drive unit space (800) between the partition wall portion and the partition wall portion.
A drive unit (70) provided in the drive unit space and capable of rotationally driving the valve body via the shaft,
A valve device equipped with.

[B02]
An annular seal member (600) provided between the housing opening and the partition wall and capable of liquid-tightly holding between the housing opening and the partition wall is further provided.
The valve device according to [B01], wherein the annular seal member is compressed in the radial direction between the housing opening and the partition wall.

[B03]
[B01] or [B02] further includes a fixing member (830) capable of fixing the housing body and the drive unit cover in a state where the partition wall portion is sandwiched between the housing body and the drive unit cover. The valve device described.

[B04]
The partition wall portion has a shaft insertion hole (62) through which one end of the shaft can be inserted.
A metal ring (601) insert-molded into the partition wall in the shaft insertion hole, and
A bearing portion (602) provided inside the metal ring and bearing one end of the shaft, and a bearing portion (602).
The valve device according to any one of [B01] to [B03].

[B05]
The partition wall portion has a partition wall recess (64) recessed from the surface (609) on the drive unit cover side to the side opposite to the drive unit cover on the radial outer side of the metal ring [B04]. Valve device.

[B06]
The valve device according to any one of [B01] to [B05], wherein the drive unit has a motor (71) capable of rotationally driving the shaft.

[B07]
The valve device according to [B06], further comprising an elastic member (74) provided in a compressed state between the motor and the partition wall portion.

[B08]
The valve device according to [B06] or [B07], wherein the motor is provided so that the shaft (Axm1) is orthogonal to the shaft (Axs1) of the shaft.

[B09]
The drive unit cover is provided with an opening-side end so as to face the partition wall side, and is further provided with a U-shaped power supply terminal (85) through which a current supplied to the motor flows.
The motor has a motor-side terminal (713) connected to the opening of the power feeding terminal at an axial end, with respect to a surface (808) of the drive unit cover with the shaft (Axm1) facing the partition wall side. The valve device according to any one of [B06] to [B08] provided so as to be parallel.

[B10]
The drive unit has a gear unit (72) capable of transmitting the driving force of the motor to the shaft.
[B06], which has a snap-fit portion (731) capable of snap-fit coupling to the drive portion cover, and further includes a holding member (73) for holding the motor and the gear portion between the drive portion cover and the motor. The valve device according to any one of [B09].

[B11]
The housing has a mounting surface (201) formed on the outer wall of the housing body so as to face the heating element in a state of being mounted on the heating element.
The motor has a motor shaft (711) that outputs a driving force and a worm gear (712) provided at the tip of the motor shaft so that the motor shaft is perpendicular to the mounting surface and is perpendicular to the mounting surface. The valve device according to any one of [B06] to [B10], wherein the worm gear is provided so as to face the side opposite to the mounting surface.

[B12]
The motor has a motor shaft (711) that outputs a driving force and a worm gear (712) provided at the tip of the motor shaft.
The valve device according to [B10], wherein the holding member is formed so that the snap-fit portion is located radially outside the worm gear.

[B13]
The inner space has a tubular pipe portion (511, 512, 513) communicating with the port, and includes a pipe member (50) attached to the housing body.
The valve device according to [B12], wherein the holding member is formed so that the snap-fit portion is located on the pipe member side with respect to the rotation axis.

<3>
[C01]
A valve device (10) capable of controlling the cooling water of the heating element (2) of the vehicle (1).
A housing (20) having a port (220, 221, 222, 223) connecting the internal space (200) and the outside,
A valve body (31) that can rotate around a rotation axis (Axr1) in the internal space, a valve body flow path (300) formed inside the valve body, the valve body flow path and the outside of the valve body. It has a valve body opening (410, 420, 430) and a shaft (32) provided on the rotating shaft, and the valve body flow path and the port via the valve body opening. A valve (30) whose communication state can be changed by the rotation position of the valve body, and
A seal opening (360) provided at a position corresponding to the port so as to be in contact with the outer peripheral wall of the valve body and can communicate with the valve body opening by the rotation position of the valve body is formed inside. An annular valve seal (36) capable of liquid-tightly holding between the valve body and the outer peripheral wall thereof is provided.
The valve body is a valve device in which at least a part of an outer peripheral wall is formed in a spherical shape and at least a part of an inner peripheral wall is formed so as to be recessed outward.

[C02]
The valve device according to [C01], wherein the valve body has at least a part of an inner peripheral wall formed in a spherical shape.

[C03]
The valve device according to [C02], wherein the valve body has the same distance between the inner peripheral wall and the outer peripheral wall in at least a part of the rotation axis direction and the circumferential direction.

[C04]
The valve device according to [C03], wherein the valve body has the same distance between the inner peripheral wall and the outer peripheral wall in a range corresponding to at least the seal opening in the rotation axis direction and the circumferential direction.

[C05]
The valve body is made of resin and is made of resin.
The valve device according to any one of [C01] to [C04], wherein the shaft is integrally formed with the valve body by insert molding.

[C06]
The valve body has a first divided body (33) and a second divided body (34) divided into two by a virtual plane (Vp1) including the rotation axis, and the first divided body and the first divided body. The valve device according to any one of [C01] to [C05], wherein the two divided bodies are joined at the respective joining surfaces (331, 341).

[C07]
A partition wall body (61) that separates the internal space from the outside of the housing, a shaft insertion hole (62) formed in the partition wall body so that one end of the shaft can be inserted, and the partition wall body. Further, a partition wall portion (60) having a regulation recess (63) recessed from the surface on the internal space side to the side opposite to the internal space is further provided.
The first divided body has a first regulated convex portion (332) extending from a surface on the partition wall side toward the regulated concave portion and having a tip portion located in the regulated concave portion.
The valve according to [C06], wherein the second divided body has a second regulated convex portion (342) extending from a surface on the partition wall side toward the regulated concave portion and having a tip portion located in the regulated concave portion. Device.

[C08]
The first regulation convex portion extends toward the regulation concave portion along the surface direction of the joint surface.
The valve device according to [C07], wherein the second regulated convex portion extends toward the regulated concave portion side along the surface direction of the joint surface while abutting on the first regulated convex portion.

[C09]
The valve body has valve body opening ribs (411, 421, 422, 431, 432) connecting the inner edge ends of the valve body opening.
The valve device according to any one of [C06] to [C08], wherein the valve body opening rib is formed at a position radially inward from a virtual spherical surface (Vs1) along the outer peripheral wall of the valve body. ..

[C10]
The valve device according to [C09], wherein the valve body opening rib is formed in a straight line.

[C11]
The joint surface is any one of [C06] to [C10] located at a position away from the valve seal when the entire seal opening is completely closed by the outer peripheral wall of the valve body. The valve device described in.

[C12]
The valve body includes a ball valve (41, 42, 43) having a spherical outer peripheral wall, and a tubular portion (44) having a cylindrical outer peripheral wall located in the direction of the axis of rotation with respect to the ball valve. , 45), and has a specific shape portion (441, 451) formed on the joint surface in the cylindrical portion and having an outer wall having a different curvature and curvature of the outer peripheral wall of the tubular portion [C06]. The valve device according to any one of [C11].

[C13]
The valve body is a first ball valve (41) having an outer peripheral wall formed in a spherical shape, and a tubular connection portion (44) connected to the first ball valve in the direction of the rotation axis and having an outer peripheral wall formed in a tubular shape. ), The second ball valve (42), which is connected to the tubular connection portion on the side opposite to the first ball valve with respect to the tubular connection portion and whose outer peripheral wall is formed in a spherical shape, the tubular connection portion. The first ball valve so as to connect the inter-valve space (400) formed between the first ball valve and the second ball valve on the outside in the radial direction and the flow path inside the valve of the first ball valve. The first end face opening (415) formed on the end face in the direction of the rotation axis, and the second ball valve so as to connect the space between the valves with the in-valve flow path of the second ball valve. It has a second end face opening (425) formed on the end face in the direction of rotation axis.
The valve device according to any one of [C06] to [C12], wherein the port (220) communicates with the space between valves.

[C14]
The valve body is made of resin and is made of resin.
The valve device according to [C13], wherein the shaft is integrally formed with the valve body by insert molding at the cylindrical connection portion.

[C15]
The shaft has a detent portion (321) capable of regulating relative rotation with the tubular connection portion.
The valve device according to [C14], wherein the detent portion is formed so that the cross-sectional shape is polygonal or non-circular.

[C16]
The valve body is connected to the second ball valve on the side opposite to the tubular connection portion with respect to the second ball valve, and the outer peripheral wall and the inner peripheral wall are formed in a cylindrical shape to form the inner flow path inside the valve. A third tubular valve connection portion (45) and a third tubular valve connection portion connected to the tubular valve connection portion on the opposite side of the second ball valve to the tubular valve connection portion, and the outer peripheral wall is formed in a spherical shape. The valve device according to any one of [C13] to [C15], which has a ball valve (43).

[C17]
The outer diameter of the outer peripheral wall of the first ball valve is the same as the outer diameter of the outer peripheral wall of the third ball valve.
The area of the first outermost end surface (301), which is the end surface of the first ball valve opposite to the third ball valve in the rotation axis direction, is the first of the third ball valves in the rotation axis direction. The valve device according to [C16], which is different from the area of the second outermost end surface (302), which is the end surface on the opposite side to the ball valve.

[C18]
The valve body connects the second valve body opening rib (422) connecting the inner edge end of the valve body opening of the second ball valve and the inner edge end of the valve body opening of the third ball valve. Has a third valve body opening rib (432)
The valve device according to [C16] or [C17], wherein the second valve body opening rib and the third valve body opening rib are formed at the same position in the circumferential direction of the valve body.

[C19]
The valve body has a first end face opening rib (416, 417) that connects the cylindrical connection portion and the first ball valve so as to straddle the first end face opening, and the second end face opening. The item according to any one of [C13] to [C18], which has a second end face opening rib (426, 427) for connecting the tubular connection portion and the second ball valve so as to straddle the above. Valve device.

[C20]
The first end face opening rib forms a first rib end face gap (418) with the end face of the first ball valve in the direction of the rotation axis.
The valve device according to [C19], wherein the second end face opening rib forms a second rib end face gap (428) with the end face of the second ball valve in the direction of the rotation axis.

[C21]
The first end face opening rib is formed so that the surface on the second ball valve side is inclined with respect to the rotation axis.
The valve device according to [C19] or [C20], wherein the second end face opening rib is formed so that the surface on the first ball valve side is inclined with respect to the rotation axis.

[C22]
A method for manufacturing a valve (30) having a valve body (31) rotatable around a rotation axis (Axr1) and a valve body flow path (300) formed inside the valve body.
In the valve body, at least a part of the outer peripheral wall is formed in a spherical shape, and at least a part of the inner peripheral wall is formed so as to be recessed outward, and the valve body is divided into two by a virtual plane (Vp1) including the axis of rotation. It has one divided body (33) and a second divided body (34), and the first divided body and the second divided body are joined at their respective joining surfaces (331, 341).
A primary molding step of resin-molding the first-divided body and the second-divided body by the first mold (110) and the second mold (120), respectively.
A resin is injected between a welded portion on the joint surface of the first divided body and a welded portion on the joint surface of the second divided body to weld the first divided body and the second divided body. 2 molding process and
How to make a valve, including.

[C23]
The first divided body or the second divided body so that the joint surfaces of the first divided body and the second divided body face each other between the primary molding step and the second forming step. The method for manufacturing a valve according to [C22], further comprising a sliding step of sliding the first mold or the second mold together.

[C24]
The valve has a shaft (32) provided on the rotating shaft.
The valve manufacturing method according to [C22] or [C23], further comprising a shaft arranging step of arranging the shaft on the rotating shaft between the primary forming step and the second forming step.

[C25]
A method for manufacturing a valve (30) having a valve body (31) rotatable around a rotation axis (Axr1) and a valve body flow path (300) formed inside the valve body.
In the valve body, at least a part of the outer peripheral wall is formed in a spherical shape, and at least a part of the inner peripheral wall is formed so as to be recessed outward.
A resin molding step of resin molding the valve body between the outer mold (180) and the inner mold (160, 170) arranged inside the outer mold,
After the resin molding step, a mold moving step of moving the inner mold to the inside of the valve body, and a mold moving step.
How to make a valve, including.

[C26]
The inner mold has a convex surface (161, 171) corresponding to the shape of the inner peripheral wall of the valve body.
The valve manufacturing method according to [C25], wherein the protrusion height (H1) of the convex surface is set to be smaller than the movable distance (Dm1) of the inner mold in the mold moving step.

[C27]
The item according to any one of [C01] to [C21], wherein the valve body is formed so that at least the facing portion of the inner peripheral wall facing the port into which the cooling water flows is recessed outward. Valve device.

[C28]
The valve device according to [C27], wherein the valve seal abuts on at least a portion of the outer peripheral wall of the valve body corresponding to the facing portion.

[C29]
The size of the valve body opening of the first ball valve is larger than the size of the valve body opening of the second ball valve and the size of the valve body opening of the third ball valve [C16]. ] To [C18]. The valve device according to any one of the following items.

[C30]
A partition wall body (61) that separates the internal space from the outside of the housing, a shaft insertion hole (62) formed in the partition wall body so that one end of the shaft can be inserted, and the partition wall body. Further, a partition wall portion (60) having a regulation recess (63) recessed from the surface on the internal space side to the side opposite to the internal space is further provided.
The valve body has a regulated convex portion (343) extending from a surface of the first divided body or the second divided body on the partition wall side toward the regulated concave portion and having a tip portion located in the regulated concave portion. The valve device according to [C06].

[C31]
The first regulation convex portion extends toward the regulation concave portion along the surface direction of the joint surface.
The valve device according to [C07], wherein the second regulated convex portion extends toward the regulated concave portion side along the surface direction of the joint surface without contacting the first regulated convex portion.

<4>
[D01]
A valve device (10) capable of controlling the cooling water of the heating element (2) of the vehicle (1).
A housing body (21) forming an internal space (200) inside, a mounting surface (201) formed on the outer wall of the housing body so as to face the heating element when attached to the heating element, and the above. A housing (20) having a port (220, 221, 222, 223) connecting the internal space and the outside of the housing body,
A valve body (31) that can rotate around a rotation axis (Axr1) in the internal space, a valve body flow path (300) formed inside the valve body, the valve body flow path and the outside of the valve body. It has a valve body opening (410, 420, 430) and a shaft (32) provided on the rotating shaft, and the valve body flow path and the port via the valve body opening. A valve (30) whose communication state can be changed by the rotation position of the valve body, and
A partition wall portion (60) having a shaft insertion hole (62) provided so as to separate the internal space from the outside of the housing body and formed so that one end of the shaft can be inserted.
A drive unit cover (80) provided on the side opposite to the internal space with respect to the partition wall portion and forming a drive unit space (800) between the partition wall portion and the partition wall portion.
A drive unit (70) provided in the drive unit space and capable of rotationally driving the valve body via one end of the shaft is provided.
The drive unit cover has a cover body (81) forming the drive unit space, and cover fixing portions (821 to 826) formed on the outer edge portion of the cover body and fixed to the housing body.
The cover fixing portion is a valve device formed so as not to protrude outward from at least one of both end portions (215, 216) in a direction (Dv1) perpendicular to the mounting surface of the housing body.

[D02]
The end portion (215) of the housing body opposite to the mounting surface is formed so as not to protrude outward from the end portion (815) of the cover body opposite to the mounting surface. The valve device described.

[D03]
The drive unit cover has a connector unit (84) formed on the outer edge portion of the cover body and having a terminal (841) that is electrically connected to the outside.
The valve device according to [D01] or [D02], wherein the connector portion is formed so as not to protrude outward from at least one of both ends (815, 816) in a direction perpendicular to the mounting surface of the cover body. ..

[D04]
A valve device (10) capable of controlling the cooling water of the heating element (2) of the vehicle (1).
A housing body (21) forming an internal space (200) inside, a housing side cover fixing portion (291 to 296) formed as a portion different from the housing body so as to protrude from the outer wall of the housing body, and the heating element. A mounting surface (201) formed on the outer wall of the housing body so as to face the heating element in a state of being mounted on the heating element, and a port (220, 221, 222) connecting the internal space and the outside of the housing body. , 223) and the housing (20)
A valve body (31) that can rotate around a rotation axis (Axr1) in the internal space, a valve body flow path (300) formed inside the valve body, the valve body flow path and the outside of the valve body. It has a valve body opening (410, 420, 430) and a shaft (32) provided on the rotating shaft, and the valve body flow path and the port via the valve body opening. A valve (30) whose communication state can be changed by the rotation position of the valve body, and
A partition wall portion (60) having a shaft insertion hole (62) provided so as to separate the internal space from the outside of the housing body and formed so that one end of the shaft can be inserted.
A drive unit cover (80) provided on the side opposite to the internal space with respect to the partition wall portion and forming a drive unit space (800) between the partition wall portion and the partition wall portion.
A drive unit (70) provided in the drive unit space and capable of rotationally driving the valve body via one end of the shaft is provided.
The drive unit cover is formed as a portion different from the cover body so as to project from the cover body (81) forming the drive unit space and the outer wall of the cover body, and is fixed to the housing side cover fixing portion. It has a cover fixing part (821 to 826) and has a cover fixing part (821 to 826).
The cover fixing portion does not protrude outward from at least one of both ends (215, 216) in the direction perpendicular to the mounting surface of the housing body (Dv1), or is parallel to the mounting surface of the housing body. A valve device formed so as not to protrude outward from at least one of both ends (215, 216) in a direction (Dp1).

[D05]
In a state where the housing body is attached to the heating element, the cover fixing portion is attached to at least one of both ends (215, 216) in the direction perpendicular to the mounting surface of the housing body (Dv1) and in the horizontal direction. It is formed so as not to protrude outward, or to prevent outward protrusion from at least one of both ends (215, 216) in the direction parallel to the mounting surface of the housing body (Dp1) and in the horizontal direction [D04]. The valve device described in.

[D06]
The housing has a plurality of said ports.
When the housing body is attached to the heating element, the port connected to the heater (6) of the vehicle is formed so as not to be located at the uppermost position in the vertical direction among the plurality of ports []. D04] or [D05].

<5>
[E01]
A valve device (10) capable of controlling the cooling water of the heating element (2) of the vehicle (1).
A housing body (21) forming an internal space (200) inside, a housing-side fixing portion (251 to 256) integrally formed with the housing body, and a housing-side fastening hole (261) formed in the housing-side fixing portion. 266), and the housing (20) having a port (220, 221, 222, 223, 224) connecting the internal space and the outside of the housing body.
A valve body (31) that can rotate around a rotation axis (Axr1) in the internal space, a valve body flow path (300) formed inside the valve body, and a valve body flow path and the valve body. It has valve body openings (410, 420, 430) that connect to the outside, and the communication state between the valve body flow path and the port via the valve body opening can be changed by the rotation position of the valve body. Valve (30) and
The inner space is formed integrally with the tubular pipe portion (511, 512, 513, 514) communicating with the port (221, 222, 223, 224) and the pipe portion, and is fixed to the housing side fixing portion. A pipe member (50) having a pipe-side fixing portion (531 to 536) and a pipe-side fastening hole (541 to 546) formed in the pipe-side fixing portion.
A pipe fastening member (540) for fixing the pipe-side fixing portion and the housing-side fixing portion by screwing into the housing-side fastening hole through the pipe-side fastening hole is provided.
The housing-side fixing portion is a valve device that forms a gap (Sh1) with the outer wall of the housing body.

[E02]
The housing has a plurality of said ports.
The pipe member has a plurality of the pipe portions connected to each other.
The valve device according to [E01], which is provided in each of the plurality of pipe portions (511 to 513) and includes a plurality of seal units (35) capable of liquidally holding between the valve body and the outer peripheral wall thereof.

[E03]
A gasket (509) provided between the pipe member and the housing body on the radial outer side of each of the plurality of pipe portions and capable of liquidally holding between the pipe member and the housing body is provided []. E02].

[E04]
The housing has a plurality of housing-side fastening holes.
The port is a straight line (Lo1) connecting two of the housing-side fastening holes among the plurality of housing-side fastening holes, or a triangle (To1, To2) formed by connecting three housing-side fastening holes. The valve device according to any one of [E01] to [E03], which is formed inside so that the center of the port is located.

[E05]
The housing has a pipe mounting surface (202) formed on the outer wall of the housing body so as to face the pipe member in a state where the pipe member is mounted on the housing body.
The port includes three outlet ports (221-223) that open into the pipe mounting surface and one relief port (224).
A relief valve (39) provided in the relief port is provided to allow or block communication between the internal space via the relief port and the outside of the housing body depending on conditions.
At least two of the three outlet ports are formed such that the center of each opening is located on a straight line of port arrangement (Lp1), which is one straight line on the pipe mounting surface.
The valve device according to any one of [E01] to [E04], wherein the relief port is formed so that the center of the opening is located at a position away from the port arrangement straight line.

[E06]
The valve device according to [E05], wherein at least two of the three outlet ports and the relief port are formed so as to partially overlap when viewed from the direction of the port arrangement straight line.

[E07]
The relief port is formed so that the center of the opening is located on the relief arrangement straight line (Lr1) which is a straight line on the pipe mounting surface parallel to the port arrangement straight line.
When viewed from the direction of the port arrangement straight line, the portion on the relief arrangement straight line side with respect to at least two of the three exit ports and the port arrangement straight line with respect to the relief arrangement straight line of the relief port. The valve device according to [E05] or [E06], wherein the side portion is formed so as to partially overlap.

[E08]
The housing has a plurality of housing-side fastening holes.
At least two of the plurality of housing-side fastening holes are formed on the fastening hole arrangement straight line (Lh1) which is a straight line located on the relief port side with respect to the port arrangement straight line.
The valve device according to any one of [E05] to [E07], wherein the relief port is formed so as to overlap a part of the fastening hole arrangement straight line.

[E09]
The pipe portion is formed on the side opposite to the port of the pipe portion main body (501) and the pipe portion main body, and the inner diameter is larger than the inner diameter of the pipe portion main body and the outer diameter is larger than the outer diameter of the pipe portion main body. The valve device according to any one of [E01] to [E08] having a pipe end portion (502).

[E10]
The item according to any one of [E01] to [E09], wherein the pipe portion has a pipe portion main body (501) and a pipe portion protrusion (503) protruding outward from the outer wall of the pipe portion main body. Valve device.

[E11]
The housing has a mounting surface (201) formed on the outer wall of the housing body so as to face the heating element in a state of being mounted on the heating element.
The valve device according to [E10], wherein the pipe portion protrusion is formed on a virtual plane (Vp5) parallel to the mounting surface.

[E12]
One of [E01] to [E11], wherein the pipe member has a plurality of the pipe portions and a pipe connecting portion (52) for connecting the plurality of portions of the pipe portions on the housing body side. The valve device described in.

[E13]
The housing has a housing opening (210) that connects the internal space to the outside of the housing body, and a tubular housing inner wall (211) that has one end connected to the housing opening to form the internal space. Have and
The valve has a shaft (32) provided on the rotating shaft.
A partition wall body (61) provided in the housing opening so as to separate the internal space from the outside of the housing body, and a shaft insertion hole formed in the partition wall body so that one end of the shaft can be inserted. The partition wall portion (60) having (62) is provided, and the partition wall portion (60) is provided.
The valve device according to any one of [E01] to [E12], wherein the inner diameter of the housing opening is larger than the inner diameter of the end portion of the inner wall of the housing opposite to the housing opening.

[E14]
The valve device according to [E13], wherein the inner wall of the housing is formed in a tapered shape so that the inner diameter becomes smaller from the housing opening side toward the side opposite to the housing opening.

[E15]
The housing has a plurality of the ports and a mounting surface (201) formed on the outer wall of the housing body so as to face the heating element when attached to the heating element.
The valve device according to any one of [E01] to [E14], wherein at least two of the plurality of the ports are formed so as to be arranged in a direction parallel to the mounting surface.

[E16]
The valve device according to any one of [E01] to [E15], wherein the pipe fastening member is a tapping screw that can be screwed into the fastening hole on the housing side while being screwed.

<6>
[F01]
A valve device (10) capable of controlling the cooling water of the heating element (2) of the vehicle (1).
A housing body (21) that forms an internal space (200) inside, a port (220, 221, 222, 223) that connects the internal space to the outside of the housing body, and the internal space and the housing body. A housing (20) having a housing opening (210) for connecting to the outside,
A valve body (31) that can rotate around a rotation axis (Axr1) in the internal space, a valve body flow path (300) formed inside the valve body, the valve body flow path and the outside of the valve body. It has a valve body opening (410, 420, 430) and a shaft (32) provided on the rotating shaft, and the valve body flow path and the port via the valve body opening. A valve (30) whose communication state can be changed by the rotation position of the valve body, and
A partition wall body (61) provided in the housing opening so as to separate the internal space from the outside of the housing body, and a shaft insertion hole formed in the partition wall body so that one end of the shaft can be inserted. The partition wall portion (60) having (62) and
A drive unit (70) provided on the side opposite to the internal space with respect to the partition wall portion and capable of rotationally driving the valve body via one end of the shaft is provided.
The partition wall portion is a valve device having a partition wall through hole (65) extending outward from the shaft insertion hole and opening to the outer wall of the partition wall portion main body.

[F02]
The housing extends outward from the inner wall of the housing opening and opens into the outer wall of the housing body, and has a housing through hole (270) formed so as to communicate with the partition through hole in [F01]. The valve device described.

[F03]
A first seal member (603) provided on the internal space side with respect to the partition wall through hole and capable of liquid-tightly holding between the shaft and the shaft insertion hole.
A second seal member (600) provided on the internal space side with respect to the housing through hole and capable of liquid-tightly holding between the partition wall main body and the inner wall of the housing opening.
The valve device according to [F02].

[F04]
The valve device according to [F03], wherein the distance (Ds1) between the first seal member and the partition wall through hole is shorter than the distance (Ds2) between the second seal member and the housing through hole.

[F05]
The partition wall portion has a partition wall inner step surface (661) that forms a step between the partition wall through hole of the shaft insertion hole and the first seal member.
[F03] or [F04], wherein the housing has a housing step surface (281) that forms a step between the housing through hole in the inner wall of the housing opening and the second seal member. Valve device.

[F06]
The valve device according to [F05], wherein the stepped surface of the housing is formed in a tapered shape so that the inner diameter increases from the internal space side toward the drive unit side.

[F07]
The housing has a mounting surface (201) formed on the outer wall of the housing body so as to face the heating element in a state of being mounted on the heating element.
The valve device according to any one of [F02] to [F06], wherein the housing through hole is open to the mounting surface.

[F08]
The valve device according to any one of [F02] to [F07], wherein the partition wall through hole is located on the lower side in the vertical direction with respect to the shaft in a state where the housing is attached to the heating element.

[F09]
The valve device according to any one of [F02] to [F08], wherein the housing through hole is located on the lower side in the vertical direction with respect to the shaft in a state where the housing is attached to the heating element.

[F10]
The valve device according to any one of [F02] to [F09], wherein the partition wall through hole and the housing through hole have different cross-sectional areas from each other.

[F11]
The valve device according to any one of [F02] to [F10], wherein the partition wall through hole and the housing through hole have different shaft positions in the axis (Axh1) direction of the shaft insertion hole.

[F12]
The valve device according to [F11], wherein the partition wall has a partition wall outer step surface (671) forming a step between the partition wall through hole and the housing through hole on the outer wall of the partition wall main body.

[F13]
The valve according to any one of [F02] to [F12], further comprising a bearing portion (602) provided on the drive portion side with respect to the partition wall through hole of the shaft insertion hole and bearing one end of the shaft. Device.

[F14]
The shaft insertion hole has a small diameter portion (621) in which the bearing portion is provided inside, a large diameter portion (622) having an inner diameter larger than the small diameter portion and opening the partition wall through hole, and the small diameter portion and the large diameter portion. The valve device according to [F13], which has a stepped surface (623) in an insertion hole formed between the portions.

[F15]
The item according to any one of [F02] to [F14], wherein the partition wall portion has a step surface (651) in the partition wall through hole that forms a step between one end and the other end of the partition wall through hole. Valve device.

[F16]
The valve device according to any one of [F02] to [F15], wherein the partition wall through hole and the housing through hole are formed so that their respective axes are not orthogonal to the axis of the shaft insertion hole.

[F17]
The item according to any one of [F01] to [F16], wherein the partition wall through hole is formed so that its cross-sectional area gradually increases from the radial inside to the radial outside of the shaft insertion hole. Valve device.

[F18]
The valve device according to any one of [F02] to [F07], wherein the partition wall through hole is located on the lower side of the shaft when the housing is attached to the heating element.

[F19]
The valve device according to any one of [F02] to [F07] and [F18], wherein the housing through hole is located on the lower side of the shaft when the housing is attached to the heating element.

[F20]
The valve device according to [F18], wherein the partition wall through hole is formed in a range of 0 to 80 degrees in the circumferential direction of the shaft, assuming that the direction directly below the shaft of the shaft is 0 degrees.

[F21]
The valve device according to [F19], wherein the housing through hole is formed in a range of 0 to 80 degrees in the circumferential direction of the shaft, assuming that the direction directly below the shaft of the shaft is 0 degrees.

[F22]
The housing has a mounting surface (201) formed on the outer wall of the housing body so as to face the heating element when attached to the heating element.
The valve device according to any one of [F02] to [F06], wherein the housing through hole is open on the mounting surface side.

[F23]
An annular seal portion annular member (97) provided in the shaft insertion hole and capable of contacting the outer peripheral wall of the shaft with an inner edge portion, and an inner edge portion softer than the seal portion annular member and hitting the outer peripheral wall of the shaft. The valve device according to any one of [F01] to [F22], further comprising a shaft seal portion (96) having an annular shaft seal member (98) that is in contact with the shaft and can be held in a liquid-tight manner.

[F24]
The valve device according to [F23], wherein the shaft seal portion is harder than the seal portion annular member and further has a seal portion holding member (99) capable of holding the seal portion annular member and the shaft seal member in the shaft insertion hole. ..

[F25]
The ring-shaped member of the seal portion is made of resin and is formed of resin.
The shaft seal member is made of rubber and is made of rubber.
The valve device according to [F24], wherein the seal portion holding member is made of metal.

[F26]
The shaft seal member includes a first shaft seal member (981) that abuts on the outer peripheral wall of the shaft on the valve body side with respect to a contact portion between the annular member of the seal portion and the outer peripheral wall of the shaft, and the seal portion. Any one of [F23] to [F25] having a second shaft seal member (982) that abuts on the outer peripheral wall of the shaft on the drive unit side with respect to the contact portion between the annular member and the outer peripheral wall of the shaft. The valve device described in.

<7>
[G01]
A valve device (10) capable of controlling the cooling water of the heating element (2) of the vehicle (1).
A housing body (21) that forms an internal space (200) inside, a port (220, 221, 222, 223, 224) that connects the internal space to the outside of the housing body, and projects from the outer wall of the housing body. A housing side cover fixing portion (291 to 296) formed as a portion different from the housing body, and a housing (20) having a housing side cover fastening hole (290) formed in the housing side cover fixing portion. ,
It has a valve body (31) that can rotate around the rotation axis (Axr1) in the internal space, and a shaft (32) provided on the rotation axis, and the port can be opened and closed depending on the rotation position of the valve body. Valve (30) and
A pipe member (50) having a tubular pipe portion (511, 512, 513, 514) whose inner space communicates with the port (221, 222, 223, 224) and attached to the housing body.
A partition wall portion (60) having a shaft insertion hole (62) provided so as to separate the internal space from the outside of the housing body and formed so that one end of the shaft can be inserted.
A cover body (81) provided on the opposite side of the partition wall from the internal space and forming a drive space (800) between the partition wall and the cover body, and the cover body so as to project from the outer wall of the cover body. A cover fixing portion (821 to 826) formed as a portion different from the above, and a drive portion cover (80) having a cover fastening hole (831 to 836) formed in the cover fixing portion.
A drive unit (70) provided in the drive unit space and capable of rotationally driving the valve body via one end of the shaft,
A fixing member (830) for fixing the cover fixing portion and the housing side cover fixing portion by screwing into the housing side cover fastening hole through the cover fastening hole is provided.
The cover fixing portion on the housing side is a cover fixing base (298) protruding from the outer wall of the housing body, and a cover fixing protruding portion protruding from the cover fixing base toward the cover fixing portion and fixed to the cover fixing portion. 299) and
A valve device in which at least a part of the pipe member is located on the side opposite to the cover fixing protrusion with respect to the cover fixing base.

[G02]
The valve device according to [G01], wherein the cover fixing protrusion forms a gap (Sc1) with the outer wall of the cover body.

[G03]
The axial length of the housing-side cover fastening hole is shorter than the combined length of the cover fixing base portion and the cover fixing protrusion in the axial direction of the housing-side cover fastening hole [G01] or [ G02].

[G04]
The valve device according to [G03], wherein the axial length of the fixing member inside the housing side cover fastening hole is shorter than the axial length of the housing side cover fastening hole.

[G05]
The valve device according to any one of [G01] to [G04], wherein the fixing member is a tapping screw that can be screwed into the housing side cover fastening hole while being screwed.

<8>
[H01]
A valve device (10) capable of controlling the cooling water of the heating element (2) of the vehicle (1).
A housing body (21) that forms an internal space (200) inside, a port (220, 221, 222, 223) that connects the internal space to the outside of the housing body, and the internal space and the housing body. A housing (20) having a housing opening (210) for connecting to the outside,
It has a valve body (31) that can rotate around the rotation axis (Axr1) in the internal space, and a shaft (32) provided on the rotation axis, and the port can be opened and closed depending on the rotation position of the valve body. Valve (30) and
A partition wall body (61) provided in the housing opening so as to separate the internal space from the outside of the housing body, and a shaft insertion hole formed in the partition wall body so that one end of the shaft can be inserted. The partition wall portion (60) having (62) and
A drive unit (70) provided on the side opposite to the internal space with respect to the partition wall portion and capable of rotationally driving the valve body via one end of the shaft is provided.
The valve has a regulated portion (332, 342) formed on the valve body.
The partition wall portion is formed on an annular regulation recess (63) recessed from the surface of the partition wall portion main body on the internal space side toward the drive portion side on the radial outer side of the shaft insertion hole, and a part in the circumferential direction of the regulation recess. The regulated portion (631) which is formed and can regulate the rotation of the valve body by abutting on the regulated portion, and the foreign matter depositing portion (68) which is recessed from the bottom surface (630) of the regulated recess toward the drive portion. Have a valve device.

[H02]
The regulation recess has an inner cylinder wall surface (632) which is a tubular wall surface formed on the inner side in the radial direction and an outer cylinder wall surface (633) which is a tubular wall surface formed on the outer side in the radial direction. The valve device according to [H01].

[H03]
The valve device according to [H02], wherein the foreign matter depositing portion is formed on the outer cylinder wall surface side with respect to at least a part of the bottom surface (630) of the regulation recess.

[H04]
The valve device according to [H02] or [H03], wherein the bottom surface (630) of the regulation recess is tapered so as to approach the drive portion from the inner cylinder wall surface side toward the outer cylinder wall surface side.

[H05]
The valve device according to any one of [H02] to [H04], wherein the inner cylinder wall surface can guide the rotation of the valve body by sliding with the regulated portion.

[H06]
The valve device according to any one of [H02] to [H05], wherein the regulating portion is formed so as to extend from the inner cylinder wall surface to the outer cylinder wall surface.

[H07]
The valve device according to [H06], wherein the length of the regulation portion in the radial direction of the regulation recess is larger than the length of the foreign matter depositing portion in the radial direction of the regulation recess.

[H08]
The valve has a valve body cylinder portion (315) that extends cylindrically from the valve body to the drive portion side.
The valve device according to any one of [H02] to [H07], wherein the tip end portion of the valve body cylinder portion is located on the radial outer side of the inner cylinder wall surface.

[H09]
The valve device according to [H08], wherein the valve has a labyrinth forming portion (316) formed in the valve body cylinder portion and capable of forming a labyrinth-like space (Sr1) with the inner cylinder wall surface. ..

[H10]
The valve device according to [H09], wherein the labyrinth forming portion is formed so as to project radially inward from the tip end portion of the valve body cylinder portion.

[H11]
According to any one of claims 8 to 10, the valve body cylinder portion is formed so as to be located on the inner cylinder wall surface side with respect to the regulation portion in the radial direction of the regulation recess. The valve device described.

[H12]
The valve device according to any one of [H01] to [H11], wherein the foreign matter depositing portion is formed in a C shape in a cross section perpendicular to the axis of the shaft insertion hole.

[H13]
The partition wall portion has a partition wall through hole (65) extending outward from the shaft insertion hole and opening to the outer wall of the partition wall portion main body.
The valve device according to [H12], wherein the partition wall through hole is formed between the peripheral ends of the foreign matter depositing portion.

[H14]
The valve according to [H12] or [H13], wherein the bottom surface of the regulation recess is formed so that the length in the circumferential direction increases toward the outside in the radial direction between the peripheral ends of the foreign matter depositing portion. Device.

[H15]
The valve device according to any one of [H01] to [H14], wherein the regulating portion is formed so as to extend radially outward on the bottom surface of the regulating recess.

[H16]
The valve device according to [H15], wherein the restricting portion is formed so that the length in the circumferential direction increases toward the outer side in the radial direction of the restricting recess.

[H17]
The valve device according to any one of [H01] to [H16], wherein the foreign matter depositing portion is located on the lower side of the valve body in a state where the housing is attached to the heating element.

<9>
[I01]
A valve device (10) capable of controlling the cooling water of the heating element (2) of the vehicle (1).
A housing body (21) forming an internal space (200) inside, and a housing (20) having a port (220, 221, 222, 223) connecting the internal space to the outside of the housing body.
It has a valve body (31) that can rotate around the rotation axis (Axr1) in the internal space, and a shaft (32) provided on the rotation axis, and the port can be opened and closed depending on the rotation position of the valve body. Valve (30) and
Of the inner wall of the housing body that forms the internal space, the bearing portion body (91) that extends in a tubular shape from the facing inner wall (213), which is the inner wall facing the end of the shaft, and is capable of bearing the end of the shaft inside. ), And a shaft bearing portion (90) having a bearing portion flow path (92) formed so as to connect the inner peripheral wall and the outer peripheral wall of the bearing portion main body.
A valve device equipped with.

[I02]
The valve device according to [I01], wherein the bearing portion flow path extends from a portion of the bearing portion main body on the facing inner wall side to an end portion on the opposite side of the facing inner wall.

[I03]
The valve device according to [I01] or [I02], wherein the valve body has a valve body end hole portion (314) formed inside so that an end portion of the shaft portion and the bearing portion main body are located. ..

[I04]
The shaft bearing portion is any one of [I01] to [I03] having a cylindrical inner bearing portion (93) provided inside the bearing portion main body and capable of bearing the end portion of the shaft inside. The valve device according to paragraph 1.

[I05]
The valve body has a valve body end hole portion (314) formed inside so that the end portion of the shaft portion and the bearing portion main body are located.
The shaft bearing portion has a cylindrical inner bearing portion (93) provided inside the bearing portion main body and capable of bearing the end portion of the shaft inside.
The difference between the inner diameter of the valve body end hole and the outer diameter of the bearing body is smaller than the difference between the inner diameter of the bearing body and the outer diameter of the shaft end [I01] or [I02]. The valve device described.

[I06]
The valve device according to any one of [I01] to [I05], wherein the shaft bearing portion is located below the facing inner wall in a state where the housing is attached to the heating element.

<10>
[J01]
A valve device (10) capable of controlling the cooling water of the heating element (2) of the vehicle (1).
A housing body (21) having a cylindrical housing inner wall (211) forming an internal space (200) inside, and a port (220) that opens into the housing inner wall and connects the internal space and the outside of the housing body. , 211, 222, 223) and the housing (20),
A valve body (31) rotatable around a rotation axis (Axr1) along the axis (Axn1) of the inner wall of the housing in the internal space, and formed so as to connect the outer peripheral wall and the inner peripheral wall of the valve body. A valve (30) having a valve body opening (410, 420, 430) and capable of opening and closing the port depending on the rotation position of the valve body is provided.
The inner wall of the housing is a valve device formed so that the distance from the shaft differs in the circumferential direction.

[J02]
The valve device according to [J01], wherein the valve body is formed so that the distance from the rotation axis to the outer peripheral wall is the same in the circumferential direction.

[J03]
The valve device according to [J01] or [J02], wherein the inner wall of the housing is formed so as to be non-circular in a cross section perpendicular to the axis.

[J04]
The valve device according to [J03], wherein the inner wall of the housing is formed so as to have a polygonal shape in a cross section perpendicular to the axis.

[J05]
In the "cross section including the portion having the largest outer diameter of the valve body and perpendicular to the axis of the inner wall of the housing", the distance between the outer peripheral wall of the valve body and the inner wall of the housing differs in the circumferential direction [J01]. The valve device according to any one of [J04].

[J06]
"A portion of the inner wall of the housing other than the portion where the port is open, and a portion of the valve body other than the portion where the opening of the valve body is formed, and on the axis of the inner wall of the housing. The valve device according to any one of [J01] to [J05], wherein the distance between the outer peripheral wall of the valve body and the inner wall of the housing differs in the circumferential direction in the "vertical cross section".

[J07]
The housing has a relief port (224) that opens into the inner wall of the housing and connects the internal space to the outside of the housing body.
The valve device according to any one of [J01] to [J06], further comprising a relief valve (39) provided in the relief port and opening and closing the relief port according to conditions.

[J08]
An annular valve seal (36) provided at a position corresponding to the port so as to be slidable with the outer peripheral wall of the valve body and capable of liquid-tightly holding between the outer peripheral wall of the valve body and the valve body is further provided.
In "a cross section including the valve seal and perpendicular to the axis of the inner wall of the housing", the distance between the outer peripheral wall of the valve body and the inner wall of the housing is any one of [J01] to [J07] different in the circumferential direction. The valve device according to paragraph 1.

[J09]
The housing has a housing opening (210) whose inner peripheral surface connects to an axial end of the inner wall of the housing and connects the interior space to the outside of the housing body.
The valve has a shaft (32) provided on the rotating shaft.
A partition wall body (61) provided in the housing opening so as to separate the internal space from the outside of the housing body, and a shaft insertion hole formed in the partition wall body so that one end of the shaft can be inserted. The partition wall portion (60) having (62) and
A drive unit (70) provided on the side opposite to the internal space with respect to the partition wall main body and capable of rotationally driving the valve body via one end of the shaft.
An annular seal member (600) provided between the housing opening and the partition wall body and capable of liquid-tightly holding between the housing opening and the partition wall body is further provided.
The valve device according to any one of [J01] to [J08], wherein the inner peripheral surface of the housing opening is formed in a cylindrical shape.

<11>
[K01]
A valve device (10) capable of controlling the cooling water of the heating element (2) of the vehicle (1).
A housing body (21) that forms an internal space (200) inside, an inlet port (220) that connects the internal space to the outside of the housing body and allows cooling water to flow in, and the internal space and the housing body. A housing (20) having a relief port (224) for connecting to the outside,
A valve body (31) rotatable around a rotation axis (Axr1) in the internal space, and a valve (30) having a shaft (32) provided on the rotation axis.
A relief valve (39) provided in the relief port, which opens or closes according to conditions and allows or blocks communication between the internal space and the outside of the housing body via the relief port.
A shielding portion (95) capable of shielding the relief valve so that the relief valve cannot be visually recognized from the inlet port, and a shielding portion (95).
A valve device equipped with.

[K02]
The valve device according to [K01], wherein the shielding portion is provided on the housing body so as to be located on the relief port side with respect to the shaft.

[K03]
The valve device according to [K01], wherein the shielding portion is provided on the housing body so as to be located on the inlet port side with respect to the shaft.

[K04]
The shielding portion is a portion where the projection of the inlet port and the projection of the relief valve overlap when the inlet port, the relief valve and the shielding portion are projected in the axial direction of the inlet port or the axial direction of the relief port. The valve device according to any one of [K01] to [K03], which is formed so as to project an area equal to or larger than the area of.

[K05]
Any of [K01] to [K04], the surface (951) of the shielding portion on the valve side is formed to follow the shape of the inner wall (211) of the housing body forming the internal space. The valve device according to item 1.

[K06]
The valve device according to any one of [K01] to [K05], wherein the shielding portion is formed in a plate shape and has a uniform plate thickness.

<12>
[L01]
A valve device (10) capable of controlling the cooling water of the heating element (2) of the vehicle (1).
The internal space (200), the radiator port (221) connected to the internal space and connected to the radiator (5) of the vehicle, and the heater port (222) connected to the internal space and connected to the heater (6) of the vehicle. ), And a housing (20) having a device port (223) connected to the interior space and connected to the vehicle device (7).
A valve (30) having a valve body (31) rotatable around a rotation axis (Axr1) in the internal space and capable of opening and closing the radiator port, the heater port or the device port depending on the rotation position of the valve body. When,
A drive unit (70) capable of rotationally driving the valve body,
By controlling the operation of the drive unit and controlling the rotational drive of the valve body, between the radiator port and the radiator, between the heater port and the heater, and between the device port and the device. It is equipped with a control unit (8) that can control the flow of cooling water between them.
The control unit rotates and drives the valve body to one side in the rotation direction, and after all the openings of the radiator port, the heater port, and the device port reach a predetermined opening, the heater port and the heater port are described. A valve device capable of controlling the drive unit and the valve body so that the device port is closed and the opening degree of only the radiator port becomes the predetermined opening degree.

[L02]
The control unit rotates the valve body to one side in the rotation direction, and after all the openings of the radiator port, the heater port, and the device port reach the predetermined opening, the heater port and the heater port and the control unit have a predetermined opening. The valve device according to [L01], wherein the drive unit and the valve body can be controlled so that the device port closes in the order of the heater port and the device port.

[L03]
The control unit rotates the valve body to one side in the rotation direction, and after all the openings of the radiator port, the heater port, and the device port reach the predetermined opening, the heater port and the heater port and the control unit have a predetermined opening. The valve device according to [L01], wherein the drive unit and the valve body can be controlled so that the device port closes in the order of the device port and the heater port.

[L04]
The control unit rotates the valve body to one side in the rotation direction, and after all the openings of the radiator port, the heater port, and the device port reach the predetermined opening, the heater port and the heater port and the control unit have a predetermined opening. The valve device according to [L01], wherein the drive unit and the valve body can be controlled so that the device port closes at the same time.

[L05]
A valve device (10) capable of controlling the cooling water of the heating element (2) of the vehicle (1).
The internal space (200), the radiator port (221) connected to the internal space and connected to the radiator (5) of the vehicle, and the heater port (222) connected to the internal space and connected to the heater (6) of the vehicle. ), And a housing (20) having a device port (223) connected to the interior space and connected to the vehicle device (7).
A valve (30) having a valve body (31) rotatable around a rotation axis (Axr1) in the internal space and capable of opening and closing the radiator port, the heater port or the device port depending on the rotation position of the valve body. When,
A drive unit (70) capable of rotationally driving the valve body,
By controlling the operation of the drive unit and controlling the rotational drive of the valve body, between the radiator port and the radiator, between the heater port and the heater, and between the device port and the device. It is equipped with a control unit (8) that can control the flow of cooling water between them.
The control unit
Depending on the vehicle environment and / or the vehicle condition, the valve body is rotationally driven in a normal mode in which the valve body is rotated on one side with respect to a reference position in the rotation direction or in a cooling priority mode in which the valve body is rotated on the other side.
A valve device capable of controlling the drive unit and the valve body so that the opening degree of only the radiator port becomes a predetermined opening position at a specific rotation position of the valve body in the normal mode.

[L06]
The valve device according to [L05], wherein the control unit can control the drive unit and the valve body so that the radiator port has the predetermined opening degree on both sides of the normal mode and the cooling priority mode.

[L07]
The valve device according to [L06], wherein the control unit can control the drive unit and the valve body so that the opening degrees of the radiator port, the heater port, or the device port can be set to the predetermined opening independently. ..

[L08]
In the normal mode, the control unit can control the drive unit and the valve body so that the opening degrees of the radiator port, the heater port, and the device port all reach the predetermined opening degree [L05]. The valve device according to any one of [L07].

[L09]
The valve device according to any one of [L01] to [L08], wherein the predetermined opening degree is set to 60% or more.

[L10]
The valve body has an outer peripheral wall or an inner peripheral wall formed in a spherical or cylindrical shape.
The valve is formed so as to connect the valve body flow path (300) formed inside the inner peripheral wall of the valve body, and the outer peripheral wall and the inner peripheral wall of the valve body, and the radiator port is formed depending on the rotation position of the valve body. The radiator opening (410) in which the radiator polymerization ratio changes, and the valve body is formed so as to connect the outer peripheral wall and the inner peripheral wall of the valve body, and the polymerization ratio with the heater port depends on the rotation position of the valve body. It is the polymerization ratio with the device port depending on the rotation position of the valve body, which is formed so as to connect the outer peripheral wall and the inner peripheral wall of the valve body and the heater opening (420) where the heater polymerization ratio changes. The valve device according to any one of [L01] to [L09], which has an opening (430) for a device in which the device polymerization ratio changes.

[L11]
When the radiator polymerization ratio is larger than 0, the radiator port opens, and the valve body flow path and the radiator communicate with each other via the radiator opening and the radiator port.
When the heater polymerization ratio is larger than 0, the heater port opens, and the valve body flow path and the heater communicate with each other via the heater opening and the heater port.
The valve device according to [L10], wherein when the device polymerization ratio is greater than 0, the device port opens and the valve body flow path and the device communicate with each other via the device opening and the device port.

<1>
1 vehicle, 2 engine (heating element), 10 valve device, 20 housing, 21 housing body, 220 inlet port (port), 30 valve, 240 fastening member, 241 fastening hole (first fastening hole), 242 fastening hole (first) 2 fastening holes), 243 fastening holes (3rd fastening hole), Ti1 triangle

<2>
1 vehicle, 2 engine (heat generator), 10 valve device, 20 housing, 21 housing body, 200 interior space, 210 housing opening, 30 valve, 32 shaft, 60 partition, 70 drive, 80 drive cover, 800 Drive space

<3>
1 vehicle, 2 engine (heat generator), 10 valve device, 20 housing, 30 valve, 31 valve body, 36 valve seal, Axr1 rotation shaft, 300 valve internal flow path, Vp1 virtual plane, 33 1st division, 34th 2 splits, 331, 341 joint surface, 110 1st type, 120 2nd type, 180 outer type, 160 1st inner type (inner type), 170 2nd inner type (inner type)

<4>
1 vehicle, 2 engine (heating element), 10 valve device, 20 housing, 30 valve, 60 partition, 80 drive cover, 70 drive, 81 cover body, 21 housing body, 821-826 cover fixing part

<5>
1 vehicle, 2 engine (heat generator), 10 valve device, 20 housing, 30 valve, 50 pipe member, 540 pipe fastening member, 541 to 546 pipe side fastening hole, 261 to 266 housing side fastening hole, 513 to 536 pipe side Fixed part, 513 to 536 Housing side fixed part, 21 Housing body, Sh1 Gap between housings (gap)

<6>
1 vehicle, 2 engine (heating element), 10 valve device, 20 housing, 30 valves, 60 bulkhead, 70 drive, 62 shaft insertion hole, 61 bulkhead body, 65 bulkhead through hole, 200 interior space

<7>
1 vehicle, 2 engine (heat generator), 10 valve device, 20 housing, 30 valve, 50 pipe member, 60 partition, 80 drive cover, 70 drive, 830 fixing member, 21 housing body, 291-296 housing side Cover fixing part, 290 Housing side cover fastening hole, 81 cover body, 821-826 cover fixing part, 831-836 cover fastening hole, 298 cover fixing base, 299 cover fixing protrusion

<8>
1 vehicle, 2 engine (heating element), 10 valve device, 20 housing, 30 valves, 60 partition, 70 drive unit, 332 first regulated convex part (regulated part), 342 second regulated convex part (regulated part) ), 63 regulation recess, 631 regulation part, 630 bottom surface, 68 foreign matter deposit part

<9>
1 vehicle, 2 engine (heating element), 10 valve device, 20 housing, 30 valves, 90 shaft bearing, 213 facing inner wall, 91 bearing body, 92 bearing flow path

<10>
1 vehicle, 2 engine (heating element), 10 valve device, 20 housing, 30 valve, 21 housing body, 211 housing inner wall, 31 valve body

<11>
1 vehicle, 2 engine (heating element), 10 valve device, 20 housing, 30 valve, 39 relief valve, 95 shield, 21 housing body, 220 inlet port, 224 relief port

<12>
1 vehicle, 2 engine (heating element), 10 valve device, 20 housing, 30 valves, 70 drive unit, 8 ECU (control unit)

Claims (6)

A valve device (10) capable of controlling the cooling water of the heating element (2) of the vehicle (1).
A housing body (21) forming an internal space (200) inside, and a housing (20) having a port (220, 221, 222, 223) connecting the internal space to the outside of the housing body.
It has a valve body (31) that can rotate around the rotation axis (Axr1) in the internal space, and a shaft (32) provided on the rotation axis, and the port can be opened and closed depending on the rotation position of the valve body. Valve (30) and
Of the inner wall of the housing body that forms the internal space, the bearing portion body (91) that extends in a tubular shape from the facing inner wall (213), which is the inner wall facing the end of the shaft, and is capable of bearing the end of the shaft inside. ), And a shaft bearing portion (90) having a bearing portion flow path (92) formed so as to connect the inner peripheral wall and the outer peripheral wall of the bearing portion main body.
A valve device equipped with. The valve device according to claim 1, wherein the bearing portion flow path extends from a portion of the bearing portion main body on the opposite inner wall side to an end portion on the opposite side of the facing inner wall. The valve device according to claim 1 or 2, wherein the valve body has a valve body end hole portion (314) formed inside so that an end portion of the shaft portion and the bearing portion main body are located. One of claims 1 to 3, wherein the shaft bearing portion has a cylindrical inner bearing portion (93) provided inside the bearing portion main body and capable of bearing the end portion of the shaft inside. The valve device described in. The valve body has a valve body end hole portion (314) formed inside so that the end portion of the shaft portion and the bearing portion main body are located.
The shaft bearing portion has a cylindrical inner bearing portion (93) provided inside the bearing portion main body and capable of bearing the end portion of the shaft inside.
The first or second claim, wherein the difference between the inner diameter of the valve body end hole and the outer diameter of the bearing body is smaller than the difference between the inner diameter of the bearing body and the outer diameter of the shaft end. Valve device. The valve device according to any one of claims 1 to 5, wherein the shaft bearing portion is located below the facing inner wall in a state where the housing is attached to the heating element.

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