JP7320605B2 - Throttle device - Google Patents

Description

The present disclosure relates to throttle devices.

Conventionally, there are cases where a throttle device including three or more slot bodies is employed to adjust the amount of intake air flowing into the engine.

For example, when a throttle device including three or more throttle bodies is installed in a motorcycle engine, the throttle bodies at both ends are easily cooled by the outside air, while the inner throttle body is less affected by the outside air. high temperature.

Also, when the pipes connected to three or more throttle bodies are assembled into one collecting pipe, the pipes between the throttle bodies at both ends and the one collecting pipe are combined with the inner throttle body into one. It tends to be longer than the piping between pipes. Therefore, the intake inertia effect may be different between the intake air passing through the throttle bodies at both ends and the intake air passing through the inner throttle bodies.

In this way, in a throttle device including three or more throttle bodies, the operating environment may differ between the throttle bodies at both ends and the inner throttle body. If the corresponding throttle valves are similarly controlled by a single motor, the air-fuel ratio of the engine may vary from cylinder to cylinder.

In order to solve this problem, Patent Document 1 discloses a motor that drives throttle valves corresponding to throttle bodies on both ends with one motor and throttle valves that correspond to the inner throttle bodies with another motor. A throttling device is disclosed which is constructed as follows.

JP-A-2012-7608

Generally, the throttle device is provided with a throttle opening sensor for detecting the opening of the throttle valve, and the opening of the throttle valve is adjusted by a motor based on the detection result of the throttle opening sensor.

In the throttle device described in Patent Document 1, a throttle opening sensor for detecting the opening of the throttle valves corresponding to the throttle bodies at both ends is arranged at one end of the row of throttle bodies, A corresponding throttle opening sensor is arranged between one of the throttle bodies at both ends and the inner throttle body.

Therefore, the provision of these two throttle opening sensors increases the size of the throttle device along the direction in which the throttle bodies are arranged.

In view of the above circumstances, at least one embodiment of the present invention aims to provide a throttle device capable of miniaturizing the dimension along the direction in which the throttle bodies are arranged while suppressing variations in the air-fuel ratio of the engine for each cylinder. aim.

(1) A throttle device according to at least one embodiment of the present invention,
A row of cylindrical throttle bodies arranged along a first direction, comprising a first throttle body arranged on one end side in the first direction and a second throttle body arranged on the other end side in the first direction. , at least one throttle body disposed between the first throttle body and the second throttle body;
a first throttle valve arranged inside the first throttle body, a second throttle valve arranged inside the second throttle body, and at least one throttle valve arranged inside each of the at least one throttle body a plurality of throttle valves including,
a first motor;
a second motor;
a first power transmission mechanism for transmitting the power of the first motor to the throttle shaft of the first throttle valve and the throttle shaft of the second throttle valve;
a second power transmission mechanism for transmitting power of the second motor to the throttle shaft of the at least one throttle valve;
a first throttle opening sensor for detecting the opening of the first throttle valve and the opening of the second throttle valve;
a second throttle opening sensor for detecting the opening of at least one throttle valve;
with
At least one of the first throttle opening sensor and the second throttle opening sensor is arranged at a position displaced from the row of throttle bodies in a direction intersecting the first direction.

(2) In some embodiments, in the throttle device described in (1) above,
Each of the first throttle opening sensor and the second throttle opening sensor may be arranged at a position displaced from the row of the throttle bodies in a direction intersecting the first direction.

(3) In some embodiments, in the throttle device described in (2) above,
When the plane including the first direction among the planes including the axis of the first throttle body is taken as the reference plane,
Each of the first throttle opening sensor, the second throttle opening sensor, the first motor, and the second motor may be arranged on the same side with respect to the reference plane.

(4) In some embodiments, in the throttle device described in (3) above,
Each of the first throttle opening sensor, the second throttle opening sensor, the first motor, and the second motor may be arranged on a first straight line along the first direction.

(5) In some embodiments, in the throttle device according to any one of (1) to (4) above,
The first power transmission mechanism includes a first power transmission unit for transmitting power of the first motor to the throttle shaft of the first throttle valve,
The first power transmission unit may be arranged between the first throttle body and the at least one throttle body.

(6) In some embodiments, in the throttle device described in (5) above,
The first power transmission mechanism is
a first shaft extending along a first direction;
a second power transmission unit disposed on the opposite side of the first power transmission unit across the first throttle valve and connecting the throttle shaft of the first throttle valve to one end side of the first shaft;
a third power transmission unit connecting the other end of the first shaft and the throttle shaft of the second throttle valve;
may include

(7) In some embodiments, in the throttle device described in (6) above,
The length of the first shaft may be longer than the distance between the axis of the first throttle body and the axis of the second throttle body.

(8) In some embodiments, in the throttle device according to (6) or (7) above,
The first throttle opening sensor may be configured to detect the opening of the first throttle valve and the opening of the second throttle valve via the third power transmission unit.

(9) In some embodiments, in the throttle device according to any one of (6) to (8) above,
the second power transmission mechanism includes a fourth power transmission unit for transmitting power of the second motor to the throttle shaft of the at least one throttle valve;
a fourth power transmission unit disposed between the second throttle body and the at least one throttle body;
The fourth power transmission unit may be arranged on the opposite side of the third power transmission unit across the second throttle body.

(10) In some embodiments, in the throttle device described in (9) above,
the at least one throttle body includes a third throttle body adjacent to the first throttle body and a fourth throttle body disposed between the third throttle body and the second throttle body;
The second power transmission mechanism may include, between the third throttle body and the fourth throttle body, a fifth power transmission unit connecting the third throttle body and the fourth throttle body.

(11) In some embodiments, in the throttle device described in (10) above,
The second throttle opening sensor detects the opening of the throttle valve provided inside the third throttle body and the opening of the throttle valve provided inside the fourth throttle body via the fifth power transmission unit. may be configured to

According to at least one embodiment of the present invention, there is provided a throttle device capable of miniaturizing the dimension along the direction in which the throttle bodies are arranged while suppressing variations in the air-fuel ratio of the engine for each cylinder.

1 is a front view of a throttle device 2 according to one embodiment; FIG. FIG. 2 is a diagram for explaining the detailed configuration of a throttle device 2 shown in FIG. 1; FIG. FIG. 2 is a right side view of the throttle device 2 shown in FIG. 1; Fig. 2 is a left side view of the throttle device 2 shown in Fig. 1; FIG. 2 is a partially enlarged view of the throttle device 2 shown in FIG. 1;

Several embodiments of the present invention will now be described with reference to the accompanying drawings. However, the dimensions, materials, shapes, relative arrangements, etc. of the components described as embodiments or shown in the drawings are not intended to limit the scope of the present invention, and are merely illustrative examples. do not have.
For example, expressions denoting relative or absolute arrangements such as "in a direction", "along a direction", "parallel", "perpendicular", "center", "concentric" or "coaxial" are strictly not only represents such an arrangement, but also represents a state of relative displacement with a tolerance or an angle or distance to the extent that the same function can be obtained.
For example, expressions such as "identical", "equal", and "homogeneous", which express that things are in the same state, not only express the state of being strictly equal, but also have tolerances or differences to the extent that the same function can be obtained. It shall also represent the existing state.
For example, expressions that express shapes such as squares and cylinders do not only represent shapes such as squares and cylinders in a geometrically strict sense, but also include irregularities and chamfers to the extent that the same effect can be obtained. The shape including the part etc. shall also be represented.
On the other hand, the expressions "comprising", "comprising", "having", "including", or "having" one component are not exclusive expressions excluding the presence of other components.

FIG. 1 is a front view of a throttle device 2 according to one embodiment. The throttle device 2 is connected to the intake side of a multi-cylinder engine, for example, to adjust the amount of intake air flowing into a multi-cylinder engine (not shown) mounted on a motorcycle. 1 indicates the position of the vehicle frame 3 of the two-wheeled vehicle when the throttle device 2 is mounted on the two-wheeled vehicle.

For example, as shown in FIG. 1, the throttle device 2 includes a row 4R of throttle bodies, a plurality of throttle valves 6, a first motor 8, a second motor 10, a first power transmission mechanism 12, a second power transmission mechanism 14, a second A first throttle opening sensor 16 and a second throttle opening sensor 18 are provided.

The row 4R of throttle bodies includes a plurality of throttle bodies 4a to 4d arranged along a direction W as a first direction (the width direction of the vehicle, that is, the width direction of the throttle device 2 in the illustrated exemplary embodiment). Each of the throttle bodies 4a-4d is configured in a cylindrical shape. The row 4R of throttle bodies includes a first throttle body 4a arranged on one end side in the direction W, a second throttle body 4b arranged on the other end side in the direction W, the first throttle body 4a and the second throttle body. at least one throttle body located between 4b. In the illustrated form, the throttle body row 4R includes at least one throttle body, a third throttle body 4c adjacent to the first throttle body 4a and a fourth throttle body 4d adjacent to the second throttle body 4b. . Also, the second throttle body 4b and the third throttle body 4c are adjacent to each other.

The plurality of throttle valves 6 includes a first throttle valve 6a arranged inside the first throttle body 4a, a second throttle valve 6b arranged inside the second throttle body 4b, at least one throttle body 4c, and at least one throttle valve 6c, 6d respectively arranged inside 4d. In the illustrated form, the plurality of throttle valves 6 are arranged as at least one throttle valve 6c, 6d, a third throttle valve 6c arranged inside the third throttle body 4c, and a third throttle valve 6c arranged inside the fourth throttle body 4d. and a fourth throttle valve 6d.

The first motor 8 is arranged below the first throttle body 4a. The second motor 10 is arranged below the fourth throttle body 4d. In this specification, the first motor 8, the second motor 10, the first throttle opening sensor 16, and the second throttle opening sensor 18 extend from the reference plane P in the direction perpendicular to the reference plane P, which will be described later. The direction toward the side on which it is placed is "downward" and the opposite direction is "upward."

The first power transmission mechanism 12 is configured to transmit power of the first motor 8 to a throttle shaft 20a to which the first throttle valve 6a is fixed and a throttle shaft 20b to which the second throttle valve 6b is fixed. . Each of throttle shaft 20a and throttle shaft 20b extends along direction W. As shown in FIG.

The second power transmission mechanism 14 is configured to transmit power of the second motor 10 to a throttle shaft 20c to which the third throttle valve 6c is fixed and a throttle shaft 20d to which the fourth throttle valve 6d is fixed. . Each of throttle shaft 20c and throttle shaft 20d extends along direction W. As shown in FIG.

The first throttle opening sensor 16 is arranged below the second throttle body 4b. The first throttle opening sensor 16 detects the opening of the first throttle valve 6a, and detects the opening of the second throttle valve 6b based on the rotation angle of the throttle shaft 20b of the second throttle valve 6b. It is

The second throttle opening sensor 18 is arranged below the third throttle body 4c. The second throttle opening sensor 18 detects the opening of the third throttle valve 6c, and detects the opening of the fourth throttle valve 6d based on the rotation angle of the throttle shaft 20d of the fourth throttle valve 6d. It is

In this way, each of the first throttle opening sensor 16 and the second throttle opening sensor 18 is arranged at a position displaced from the throttle body row 4R in the direction crossing the direction W (downward in the illustrated embodiment). ing.

Further, when the plane including the direction W among the planes including the axis C1 of the first throttle body 4a (the center axis of the inner peripheral surface of the cylindrical first throttle body 4a) is set as the reference plane P, the first throttle opening The throttle sensor 16, the second throttle opening sensor 18, the first motor 8, and the second motor 10 are arranged on the same side (lower side in the illustrated embodiment) with respect to the reference plane P. As shown in FIG. Each of the first throttle opening sensor 16, the second throttle opening sensor 18, the first motor 8 and the second motor 10 is arranged on the first straight line Q along the direction W. As shown in FIG. That is, each of the first throttle opening sensor 16, the second throttle opening sensor 18, the first motor 8, and the second motor 10 is arranged such that at least a portion thereof overlaps each other at the same position in the direction W view. placed in

Next, a configuration example of the first power transmission mechanism 12 will be described.
For example, as shown in FIG. 1, the first power transmission mechanism 12 includes a drive gear 22 as a first power transmission unit, a first shaft 24, a link mechanism 26 as a second power transmission unit, and a third power transmission unit. A linkage 28 is included.

The driving gear 22 is arranged between the first throttle body 4a and the third throttle body 4c, and is fixed to the end of the throttle shaft 20a of the first throttle valve 6a so as to rotate integrally with the throttle shaft 20a. It is configured. The drive gear 22 is connected to the first motor 8 via a gear (not shown), and transmits the power of the first motor 8 to the throttle shaft 20a of the first throttle valve 6a.

The first shaft 24 extends along the direction W from below the first throttle body 4a to below the second throttle body 4b.

The link mechanism 26 is arranged on the side opposite to the drive gear 22 with the first throttle valve 6a interposed therebetween. The link mechanism 26 is configured to connect the throttle shaft 20a of the first throttle valve 6a and one end side 24a (one end) of the first shaft 24 to transmit power from the throttle shaft 20a to the first shaft 24. ing.

The link mechanism 28 is arranged on the opposite side of the link mechanism 26 across the throttle row 4R. The link mechanism 28 connects the other end 24b (other end) of the first shaft 24 and the throttle shaft 20b of the second throttle valve 6b so as to transmit power from the first shaft 24 to the throttle shaft 20b. It is configured.

FIG. 2 is a diagram for explaining the detailed configuration of the throttle device 2 shown in FIG.
As shown in FIG. 2, the length L1 of the first shaft 24 is longer than the distance L2 between the axis C1 of the first throttle body 4a and the axis C2 of the second throttle body 4b. longer than L3.

3 is a right side view of the throttle device 2 shown in FIG. 1. FIG.
As shown in FIG. 3 , linkage 26 includes links 32 , 34 and 36 .

One end portion 32a of the link 32 is fixed to the end portion of the throttle shaft 20a so that the link 32 rotates integrally with the throttle shaft 20a around the rotation axis O1 of the throttle shaft 20a of the first throttle valve 6a. there is

One end 34a of the link 34 is rotatably connected to the other end 32b of the link 32 via a pin 33, and the other end 34b of the link 34 is connected to one end 36a of the link 36 via a pin 35. are rotatably connected to each other.

The other end 36b of the link 36 is fixed to one end 24a of the first shaft 24 so that the link 36 rotates together with the first shaft 24 around the rotation axis O2 of the first shaft 24. .

According to this configuration, the rotation of the throttle shaft 20a of the first throttle valve 6a is transmitted to the link 32, the link 34, the link 36, and the first shaft 24 in order, whereby power is transferred from the throttle shaft 20a to the first shaft 24. transmitted.

4 is a left side view of the throttle device 2 shown in FIG. 1. FIG.
As shown in FIG. 4 , linkage 28 includes link 38 , link 40 , link 42 , link 44 , link 46 and sensor shaft 48 .
One end 38a of the link 38 is fixed to the other end 24b of the first shaft 24 so that the link 38 rotates together with the first shaft 24 around the rotation axis O2 of the first shaft 24. .

One end 40a of the link 40 is rotatably connected to the other end 38b of the link 38 via a pin 41, and the other end 40b of the link 40 is connected to one end 42a of the link 42 via a pin 43. are rotatably connected to each other.

The intermediate portion 42b of the link 42 is fixed to the end portion of the throttle shaft 20b so that the link 42 rotates around the rotation axis O3 of the throttle shaft 20b of the second throttle valve 6b.

One end 44 a of the link 44 is rotatably supported by the other end 42 c of the link 42 via a pin 45 . The other end 44b of the link 44 is rotatably supported by one end 46a of the link 46 via a pin 47. As shown in FIG.

One end portion 48a of the sensor shaft 48 is fixed to the other end portion 46b of the link 46 so that the link 46 rotates together with the sensor shaft 48 around the rotation axis O4 of the sensor shaft 48 .

According to this configuration, the rotation of the first shaft 24 is transmitted to the link 38, the link 40, the link 42 and the throttle shaft 20b in order, thereby transmitting power from the first shaft 24 to the throttle shaft 20b.

In the throttle device 2, the link mechanism 26, the first shaft 24, and the link mechanism 28 rotate the sensor shaft 48, the throttle valves 6a, and the throttle valves 6b at the same rotation angle (phase).

The first throttle opening sensor 16 detects the rotation angle of the sensor shaft 48 of the link mechanism 28 using, for example, a magnetic sensor, a potentiometer, or an optical rotary encoder, thereby detecting the opening of the first throttle valve 6a and the second opening. It is configured to detect the opening of the throttle valve 6b. That is, the opening degree of the first throttle valve 6 a and the opening degree of the second throttle valve 6 b are detected by the first throttle opening sensor 16 via the link mechanism 28 .

Next, a configuration example of the second power transmission mechanism 14 will be described.
For example, as shown in FIG. 1, the second power transmission mechanism 14 includes a drive gear 50 as a fourth power transmission unit and a link mechanism 52 as a fifth power transmission unit.

The driving gear 50 is arranged between the second throttle body 4b and the fourth throttle body 4d, and is fixed to the end of the throttle shaft 20d of the fourth throttle valve 6d so as to rotate integrally with the throttle shaft 20d. It is configured. The drive gear 50 is connected to the second motor 10 via a gear (not shown), and transmits the power of the second motor 10 to the throttle shaft 20d of the fourth throttle valve 6d. The drive gear 50 is arranged on the opposite side of the link mechanism 28 with the second throttle body 4b interposed therebetween.

The link mechanism 52 is arranged between the third throttle body 4c and the fourth throttle body 4d. The link mechanism 52 connects the throttle shaft 20c of the third throttle body 4c and the throttle shaft 20d of the fourth throttle body 4d to transmit power from the throttle shaft 20d to the throttle shaft 20c.

FIG. 5 is a partially enlarged view of the throttle device 2 shown in FIG.
As shown in FIG. 5, linkage 52 includes link 54 , pin 56 , link 58 , link 60 , link 62 and sensor shaft 64 .
One end of the link 54 is fixed to the end of the throttle shaft 20d so that the link 54 rotates together with the throttle shaft 20d around the rotational axis of the fourth throttle valve 6d.

The pin 56 connects the other end of the link 54 and one end of the link 58 so that the links 54 and 58 rotate integrally.

The central portion of the link 58 is fixed to the end of the throttle shaft 20c so that the link 58 rotates around the rotation axis of the third throttle valve 6c.

One end of the link 60 is rotatably supported by the other end of the link 58 via a pin (not shown). The other end of the link 60 is rotatably supported by one end of the link 62 via a pin (not shown).

The other end of the link 62 is fixed to one end of the sensor shaft 64 so that the link 62 rotates together with the sensor shaft 64 around the rotation axis of the sensor shaft 64 .

According to this configuration, the rotation of the throttle shaft 20d of the fourth throttle valve 6d is transmitted to the link 54, the pin 56, the link 58 and the throttle shaft 20c in order, thereby transmitting power from the throttle shaft 20d to the throttle shaft 20c. be done.

In the throttle device 2, the link mechanism 52 causes the sensor shaft 64, the throttle valve 6c, and the throttle valve 6d to rotate at the same rotation angle (phase).

The second throttle opening sensor 18 detects the rotational angle of a sensor shaft 64 fixed to the other end of the link 62 using, for example, a magnetic sensor, potentiometer, or optical rotary encoder, thereby detecting the third throttle valve 6c. and the opening of the fourth throttle valve 6d. That is, the opening degree of the third throttle valve 6c and the opening degree of the fourth throttle valve 6d are detected by the second throttle opening sensor 18 via the link mechanism 52. FIG.

Next, effects obtained by the throttle device 2 described above will be described.
As described above, in a throttle device including three or more throttle bodies, the operating environment may differ between the throttle bodies at both ends and the inner throttle body. If a single motor is used to control the throttle valves corresponding to .

On the other hand, in the throttle device 2, as shown in FIG. The throttle valves 6c and 6d corresponding to the inner throttle bodies 4c and 4d are synchronized through the second power transmission mechanism 14 and driven by the second motor 10. As shown in FIG. As a result, even when operating environments differ between the throttle bodies 4a, 4b on both ends and the throttle bodies 4c, 4d on the inner side, variations in the air-fuel ratio of the engine for each cylinder can be suppressed.

Further, the overall width w0 of the throttle device 2 in the direction W is likely to be affected by the length L1 of the row 4R of throttle bodies arranged along the direction W. As shown in FIG. Therefore, by providing the first throttle opening sensor 16 and the second throttle opening sensor 18 at positions displaced from the throttle body row 4R in the direction crossing the direction W as described above, The throttle bodies 4a to 4d are arranged so that the width of the first throttle opening sensor 16 and the width of the second throttle opening sensor 18 in the direction W do not affect the overall width w0 of the throttle device 2 in the direction W. The size of the throttle device 2 along the direction W can be reduced. As a result, it is possible to prevent the throttle device 2 from interfering with the frame and peripheral components of the two-wheeled vehicle. In addition, it becomes easy to set the pitches (bore pitches) of the throttle bodies 4a to 4d uniformly, and it becomes easy to set the pitches of the throttle bodies 4a to 4d in accordance with the pitch of the cylinders of the engine (not shown). In addition, it is possible to improve the degree of freedom in layout of peripheral parts on the vehicle side.

Further, as shown in FIG. 1, each of the first throttle opening sensor 16, the second throttle opening sensor 18, the first motor 8, and the second motor 10 is located in the same direction with respect to the reference plane P ( It is placed on the bottom side). As a result, compared to the case where the first throttle opening sensor 16, the second throttle opening sensor 18, the first motor 8 and the second motor 10 are dispersed on both sides of the reference plane P, The size of the throttle device 2 in the direction perpendicular to the reference plane P can be reduced.

Further, as shown in FIG. 1, each of the first throttle opening sensor 16, the second throttle opening sensor 18, the first motor 8 and the second motor 10 is arranged on the first straight line Q along the first direction. are placed in As a result, compared with the case where the first throttle opening sensor 16, the second throttle opening sensor 18, the first motor 8 and the second motor 10 are not arranged on the first straight line Q along the first direction. As a result, the size of the throttle device 2 in the direction orthogonal to the reference plane P and the size of the throttle device 2 in the axial direction of the first throttle body 4a (the axial direction of the throttle bodies 4a to 4d) can be reduced.

Further, as shown in FIG. 1, a driving gear 22 for transmitting the power of the first motor 8 to the throttle shaft 20a of the first throttle valve 6a is arranged between the first throttle body 4a and the third throttle body 4c. are placed. As a result, the drive gear 22 replaces the space provided between the first throttle body 4a and the third throttle body 4c in order to match the pitch (bore pitch) of each of the throttle bodies 4a to 4d with the pitch of the cylinders of the engine. It can be used as a space. As a result, the throttle device 2 can be made smaller.

Further, as shown in FIG. 1, the first power transmission mechanism 12 is disposed on the side opposite to the drive gear 22 across the first shaft 24 extending along the direction W and the first throttle valve 6a. A link mechanism 26 connecting the throttle shaft 20a of the first throttle valve 6a and one end 24a of the first shaft 24, and connecting the other end 24b of the first shaft 24 and the throttle shaft 20b of the second throttle valve 6b. and a link mechanism 28 . As a result, the power of the first motor 8 can be transmitted from the first throttle valve 6a to the second throttle valve 6b with a simple configuration. Therefore, it is possible to realize the throttle device 2 that achieves both the above effects and the simplification of the configuration.

Also, as shown in FIG. 2, the length L1 of the first shaft 24 is longer than the distance L2 between the axis C1 of the first throttle body 4a and the axis C2 of the second throttle body 4b. , the distance between the one end side 24a of the first shaft and the link mechanism 26 side of the throttle shaft 20a is shortened, and the distance between the other end side 24b of the first shaft and the link mechanism 28 side of the throttle shaft 20b is shortened. distance can be shortened. This simplifies the configuration of the link mechanism 26 that connects the throttle shaft 20a and the one end side 24a of the first shaft 24, and also allows the other end side 24b of the first shaft 24 and the throttle shaft 20b of the second throttle valve 6b to be connected. can be simplified.

Further, as shown in FIG. 1, the first throttle opening sensor 16 detects the opening of the first throttle valve 6a and the opening of the second throttle valve 6b, and detects the power from the throttle shaft 20a to the throttle shaft 20b. It is configured to detect via the link mechanism 28 used for transmission. As a result, the configuration of the throttle device 2 can be reduced compared to the case where the opening degrees of the first throttle valve 6a and the opening degrees of the second throttle valve 6b are detected via a link mechanism or the like provided separately from the link mechanism 28. can be simplified.

Further, as shown in FIG. 1, a drive gear 50 for transmitting the power of the second motor 10 to the throttle shaft 20d of the fourth throttle valve 6d is provided between the second throttle body 4b and the fourth throttle body 4d. are placed. As a result, the drive gear 50 replaces the space provided between the second throttle body 4b and the fourth throttle body 4d in order to match the pitch (bore pitch) of each of the throttle bodies 4a to 4d with the pitch of the cylinders of the engine. It can be used as a space. As a result, the throttle device 2 can be made smaller.

Further, as shown in FIG. 1, a link mechanism 52 connecting the third throttle valve 6c and the fourth throttle valve 6d is provided between the third throttle body 4c and the fourth throttle body 4d adjacent to each other. Therefore, the power transmitted from the second motor 10 to the fourth throttle valve 6d via the drive gear 50 can be transmitted to the third throttle valve 6c with a simple configuration. Thereby, the configuration of the throttle device 2 can be simplified.

Further, as shown in FIG. 1, the second throttle opening sensor 18 detects the opening of the third throttle valve 6c and the opening of the fourth throttle valve 6d through power transmission from the throttle shaft 20d to the throttle shaft 20c. is configured to be detected via a link mechanism 52 used for Therefore, compared to the case where the opening degrees of the third throttle valve 6c and the opening degrees of the fourth throttle valve 6d are detected via a link mechanism or the like provided separately from the link mechanism 52, the configuration of the throttle device 2 is reduced. can be simplified.

The present invention is not limited to the above-described embodiments, and includes modifications of the above-described embodiments and modes in which these modes are combined as appropriate.

For example, in the above-described embodiment, each of the first throttle opening sensor 16 and the second throttle opening sensor 18 is provided at a position displaced in the direction crossing the direction W from the throttle body row 4R. Only the throttle opening sensor 16 may be provided at a position displaced from the throttle body row 4R in a direction intersecting the direction W, or only the second throttle opening sensor 18 may be provided at a position intersecting the direction W from the throttle body row 4R. You may provide in the position shifted in the direction. That is, by providing at least one of the first throttle opening sensor 16 and the second throttle opening sensor 18 at a position displaced from the throttle body row 4R in the direction crossing the direction W, the first throttle opening sensor 16 and the width of the second throttle opening sensor 18 so that at least one of the width w0 of the throttle device 2 does not affect the overall width w0 of the throttle device 2, and the size of the throttle device 2 along the direction W in which the throttle bodies 4 are arranged is reduced. can do.

Further, in the above-described embodiment, the throttle device 2 including the throttle body row 4R composed of the four throttle bodies 4a to 4d was illustrated, but the number of throttle bodies provided in the throttle device 2 is not limited to four, but three. or five or more.

Further, in the above-described embodiment, the throttle device 2 mounted on a two-wheeled vehicle was exemplified, but the throttle device 2 is not limited to two-wheeled vehicles and may be mounted on, for example, a four-wheeled vehicle.

Further, in the above-described embodiment, the driving gear 22 was illustrated as the first power transmission unit for transmitting the power of the first motor 8 to the throttle shaft 20a of the first throttle valve 6a. A mechanism or the like may be used as the first power transmission unit.

Further, in the above-described embodiment, the link mechanism 26 is illustrated as the second power transmission unit that connects the throttle shaft 20a of the first throttle valve 6a and the one end side 24a of the first shaft 24. A gear train or the like may be used as the second power transmission unit.

Further, in the above-described embodiment, the link mechanism 28 is illustrated as the third power transmission unit that connects the other end side 24b of the first shaft 24 and the throttle shaft 20b of the second throttle valve 6b. A gear train or the like may be used as the third power transmission unit.

Further, in the above-described embodiment, the drive gear 50 is used as the fourth power transmission unit for transmitting the power of the second motor 10 to the throttle shaft 20d of the fourth throttle valve 6d. A mechanism or the like may be used as the fourth power transmission unit.

In the above-described embodiment, the link mechanism 52 is used as the fifth power transmission unit that connects the throttle shaft 20c of the third throttle valve 6c and the throttle shaft 20d of the fourth throttle valve 6d. A gear train or the like may be used as the fifth power transmission unit.

Further, in the above-described embodiment, the first throttle opening sensor 16 detects the rotation angle of the sensor shaft 48 of the link mechanism 28 to detect the opening of the first throttle valve 6a and the opening of the second throttle valve 6b. was configured to detect In another embodiment, the first throttle opening sensor 16 detects the rotation angle of any part of the first power transmission mechanism 12 to determine the opening of the first throttle valve 6a and the opening of the second throttle valve 6b. may be detected.

In the above-described embodiment, the second throttle opening sensor 18 detects the rotation angle of the sensor shaft 64 of the link mechanism 52 to detect the opening of the third throttle valve 6c and the opening of the fourth throttle valve 6d. was configured to detect In another embodiment, the second throttle opening sensor 18 detects the rotation angle of any part of the second power transmission mechanism 14 to detect the opening of the third throttle valve 6c and the opening of the fourth throttle valve 6d. may be detected.

2 Throttle device 4a First throttle body 4b Second throttle body 4c Third throttle body 4d Fourth throttle body 4R Throttle body row 6a First throttle valve 6b Second throttle valve 6c Third throttle valve 6d Fourth throttle valve 8 1 motor 10 2nd motor 12 1st power transmission mechanism 14 2nd power transmission mechanism 16 1st throttle opening sensor 18 2nd throttle opening sensors 20a, 20b, 20c, 20d throttle shaft 22 drive gear (first power transmission unit )
24 shaft (first shaft)
24a One end side 24b Other end side 26 Link mechanism (second power transmission unit)
28 link mechanism (third power transmission unit)
50 drive gear (fourth power transmission unit)
52 link mechanism (fifth power transmission unit)

Claims (9)

A row of cylindrical throttle bodies arranged along a first direction, the first throttle body arranged on one end side in the first direction and the second throttle body arranged on the other end side in the first direction. a row of throttle bodies including a body and at least one throttle body disposed between said first throttle body and said second throttle body;
A first throttle valve arranged inside the first throttle body, a second throttle valve arranged inside the second throttle body, and at least one throttle valve arranged inside the at least one throttle body a plurality of throttle valves including a throttle valve;
a first motor;
a second motor;
a first power transmission mechanism for transmitting power of the first motor to a throttle shaft of the first throttle valve and a throttle shaft of the second throttle valve;
a second power transmission mechanism for transmitting power of the second motor to a throttle shaft of the at least one throttle valve;
a first throttle opening sensor for detecting the opening of the first throttle valve and the opening of the second throttle valve;
a second throttle opening sensor for detecting the opening of the at least one throttle valve;
with
At least one of the first throttle opening sensor and the second throttle opening sensor is arranged at a position displaced from the row of the throttle bodies in a direction intersecting the first direction ,
The first power transmission mechanism includes a first power transmission unit for transmitting power of the first motor to a throttle shaft of the first throttle valve,
The first power transmission unit is arranged between the first throttle body and the at least one throttle body,
The first power transmission mechanism is
a first shaft extending along the first direction;
a second power transmission unit disposed on the opposite side of the first power transmission unit across the first throttle valve and connecting a throttle shaft of the first throttle valve and one end side of the first shaft;
a third power transmission unit connecting the other end of the first shaft and the throttle shaft of the second throttle valve;
including,
The length of the first shaft is longer than the distance between the axis of the first throttle body and the axis of the second throttle body.
throttle device. 2. The throttle device according to claim 1, wherein each of said first throttle opening sensor and said second throttle opening sensor is arranged at a position displaced from said row of throttle bodies in a direction intersecting said first direction. . When a plane including the first direction among planes including the axis of the first throttle body is taken as a reference plane,
3. The throttle according to claim 2, wherein each of said first throttle opening sensor, said second throttle opening sensor, said first motor and said second motor are arranged on the same side with respect to said reference plane. Device. 4. The apparatus according to claim 3, wherein each of said first throttle opening sensor, said second throttle opening sensor, said first motor and said second motor are arranged on a first straight line along said first direction. throttle device. 5. The first throttle opening sensor is configured to detect the opening of the first throttle valve and the opening of the second throttle valve via the third power transmission unit. The throttle device according to any one of . A row of cylindrical throttle bodies arranged along a first direction, the first throttle body arranged on one end side in the first direction and the second throttle body arranged on the other end side in the first direction. a row of throttle bodies including a body and at least one throttle body disposed between said first throttle body and said second throttle body;
A first throttle valve arranged inside the first throttle body, a second throttle valve arranged inside the second throttle body, and at least one throttle valve arranged inside the at least one throttle body a plurality of throttle valves including a throttle valve;
a first motor;
a second motor;
a first power transmission mechanism for transmitting power of the first motor to a throttle shaft of the first throttle valve and a throttle shaft of the second throttle valve;
a second power transmission mechanism for transmitting power of the second motor to a throttle shaft of the at least one throttle valve;
a first throttle opening sensor for detecting the opening of the first throttle valve and the opening of the second throttle valve;
a second throttle opening sensor for detecting the opening of the at least one throttle valve;
with
At least one of the first throttle opening sensor and the second throttle opening sensor is arranged at a position displaced from the row of the throttle bodies in a direction intersecting the first direction,
The first power transmission mechanism includes a first power transmission unit for transmitting power of the first motor to a throttle shaft of the first throttle valve,
The first power transmission unit is arranged between the first throttle body and the at least one throttle body,
The first power transmission mechanism is
a first shaft extending along the first direction;
a second power transmission unit arranged opposite to the first power transmission unit across the first throttle valve and connecting a throttle shaft of the first throttle valve and one end side of the first shaft;
a third power transmission unit connecting the other end of the first shaft and the throttle shaft of the second throttle valve;
including
The second power transmission mechanism includes a fourth power transmission unit for transmitting power of the second motor to a throttle shaft of the at least one throttle valve,
the fourth power transmission unit is disposed between the second throttle body and the at least one throttle body;
The fourth power transmission unit is arranged on the opposite side of the third power transmission unit across the second throttle body.
throttle device. 7. The throttle device according to claim 6, wherein the length of said first shaft is longer than the distance between the axis of said first throttle body and the axis of said second throttle body. said at least one throttle body includes a third throttle body adjacent to said first throttle body and a fourth throttle body disposed between said third throttle body and said second throttle body;
The second power transmission mechanism includes a fifth power transmission unit that connects a throttle valve provided inside the third throttle body and a throttle valve provided inside the fourth throttle body, the third throttle body 7. A throttle device according to claim 6 , including between a body and said fourth throttle body. The second throttle opening sensor detects the opening of a throttle valve provided inside the third throttle body and the opening of a throttle valve provided inside the fourth throttle body in the fifth power transmission unit. 9. A throttling device as claimed in claim 8 , configured to detect via

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