WO2024179958A1 - Vanne motorisée de distribution de fluide - Google Patents
Vanne motorisée de distribution de fluide Download PDFInfo
- Publication number
- WO2024179958A1 WO2024179958A1 PCT/EP2024/054752 EP2024054752W WO2024179958A1 WO 2024179958 A1 WO2024179958 A1 WO 2024179958A1 EP 2024054752 W EP2024054752 W EP 2024054752W WO 2024179958 A1 WO2024179958 A1 WO 2024179958A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- shutter
- housing
- end piece
- volume
- axis
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/10—Welded housings
- F16K27/107—Welded housings for taps or cocks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P7/00—Controlling of coolant flow
- F01P7/14—Controlling of coolant flow the coolant being liquid
- F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
- F01P7/165—Controlling of coolant flow the coolant being liquid by thermostatic control characterised by systems with two or more loops
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0005—Control, e.g. regulation, of pumps, pumping installations or systems by using valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/08—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks
- F16K11/087—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with spherical plug
- F16K11/0873—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with spherical plug the plug being only rotatable around one spindle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
- F16K27/067—Construction of housing; Use of materials therefor of taps or cocks with spherical plugs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
- F16K31/041—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/53—Mechanical actuating means with toothed gearing
- F16K31/535—Mechanical actuating means with toothed gearing for rotating valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0663—Packings
- F16K5/0689—Packings between housing and plug
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
- F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
- F16K5/20—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
- F16K5/201—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces with the housing or parts of the housing mechanically pressing the seal against the plug
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P7/00—Controlling of coolant flow
- F01P7/14—Controlling of coolant flow the coolant being liquid
- F01P2007/146—Controlling of coolant flow the coolant being liquid using valves
Definitions
- the present invention relates to a motorized fluid distribution valve.
- the invention is particularly concerned with valves for fluid circulation circuits, in particular cooling fluid, on board vehicles with thermal, electric, hydrogen or hybrid engines.
- the fluid flows through the valve by means of its drive in the circulation circuit under the effect of a pump, typically electric.
- the valves concerned here comprise a shutter which is mounted movably, for example in rotation about an axis, in a housing of the valve, to regulate a flow of fluid through the housing between an inlet and outlets of the housing, this shutter being driven in movement by an electromechanical actuation device, integrated into the valve.
- a seat device is maintained in sliding sealing contact against the obturator during movement of the obturator and allows, depending on the position of the obturator, to selectively allow the fluid to flow through the seat device, in order to open the outlet, and prevent the fluid from flowing through the seat device, in order to close the outlet.
- each of these seat devices must be assembled to the housing under constraint, using dedicated fixing and sealing parts, which complicates the assembly of the valve.
- the aim of the present invention is to provide a motorized valve whose assembly is more practical and more economical.
- the invention relates to a motorized fluid distribution valve, as defined in claim 1.
- One of the ideas underlying the invention is, on the one hand, to produce in plastic both a body of the valve housing, inside which the fluid passes through the housing and the shutter is mounted movably, and one or more end pieces of the housing, which respectively equip outlets of the housing and, on the other hand, to take advantage of the presence of these plastic parts to assemble them by plastic welding.
- each end piece is assembled to the body of the housing by welding between the body and a plastic part of the end piece, forming a plastic weld which ensures both the mechanical fixing between the body and the end piece and the sealing of this fixing.
- this plastic weld is designed, typically by its dimensioning, to withstand without damage the mechanical stresses that are applied to the tip by a seat device interposed between the tip and the shutter, more precisely by an elastic member of this seat device, which keeps applied against the tip a support member cooperating by sliding contact with the shutter during the movement of the latter.
- the invention thus makes it possible not to use fixing and sealing parts dedicated to the assembly between the body and the end pieces of the housing, such as added screws and seals, which therefore reduces the component cost and simplifies the assembly process of the valve according to the invention. Certain aspects of the seat devices and the end pieces can advantageously be provided to further gain in practicality and/or performance, as detailed below.
- the use of plastic welding is advantageously extended to other parts of the housing to further simplify the assembly process of the valve according to the invention.
- the invention is advantageously applicable to the case where the valve according to the invention integrates a fluid drive pump and thus forms a module whose pump and shutter are received in the same housing; that being said, the invention is also applicable to the case where such a pump is dissociated from the valve, the discharge of the pump then being connected by a hose or similar to the inlet of the valve housing, the internal volume of which mainly receives only the shutter.
- FIG. 1 is a perspective view of a valve according to the invention.
- FIG. 2 is a perspective view along arrow II of Figure 1;
- Figure 3 is a section along plane III of Figure 1;
- FIG. 4 is a section along line IV-IV of Figure 3, after removal of a valve cover;
- FIG. 5 is an elevation view along arrow V of Figure 4.
- FIG. 6 is an enlarged view of the detail circled VI in Figure 3;
- FIG. 7 is an enlarged view of the detail circled VII in Figure 3.
- FIG. 8 is an enlarged view of the detail circled VIII in Figure 3.
- FIGS 1 to 8 show a motorized fluid distribution valve, referenced 1.
- This valve 1 is suitable for being integrated into a fluid circulation circuit, in particular a cooling fluid.
- the valve 1 is for example used in a cooling circuit of a vehicle engine, this engine being thermal, electric, hydrogen or hybrid.
- the valve 1 comprises a housing 10 through which the fluid to be distributed, in other words to be regulated, by the valve 1 is intended to flow.
- the housing 10 comprises a body 11, which delimits an internal volume V1 1 through which the fluid passes through the housing 10, as well as an inlet 10.1 and outlets, here four in number and respectively referenced 10.2, 10.3, 10.4 and 10.5.
- the inlet 10.1 can communicate with the outlets 10.2 to 10.5 through the body 1 1 via the internal volume V11 of the latter, the effective communication between the inlet 10.1 and one or more of the outlets 10.2 to 10.5 being operated by components of the valve, as detailed below.
- the fluid enters the internal volume V11 through the inlet 10.1 , as schematically indicated by the arrow F10.1 in the figures, and the fluid leaves the internal volume V1 1 through the outlets 10.2 to 10.5 as schematically indicated in the figures by the respective arrows F10.2, F10.3, F10.4 and F10.5.
- the body 11 is made of a single piece of plastic material, preferably molded.
- the nature of the plastic material constituting the body 11 is not limiting as long as this plastic material, preferably moldable, gives the body 11 sufficient rigidity to fixedly delimit the internal volume V11.
- this plastic material are polyphenylene sulfide, polyphthalamide and polyamide 6-6. In practice, this plastic material is filled if necessary.
- passage V11.3 which directly connects the sub-volumes V1 1.1 and V1 1 .2 to each other and which opens into the sub-volume V1 1 .2 along a passage axis X11, or which extends along this passage axis X11 over its entire extent between its ends opening respectively into the sub-volume V1 1 .1 and into the sub-volume V1 1 .2.
- the body 11 delimits an opening 01 1 by which the sub-volume V11.2 is directly connected to the outside of the body 11.
- the opening 011 is formed by molding-demolding the body 1 1 , in the sense that the opening 011 results from the use, during the molding of the body 11 , of a molding pin, which extends along the passage axis X11 and around which is molded a part of the plastic material constituting the body 1 1 , to form the passage V1 1.3.
- this molding pin is advantageously used in conjunction with a mold to manufacture the body 1 1 by molding.
- the body 11 in order to manufacture the body 11 as shown in the figures, it is in particular possible to provide that plastic material is introduced, typically injected, into the aforementioned mold to form the body 11 by molding, while the aforementioned molding pin is arranged in this mold by extending along the passage axis X11, so that this plastic material introduced into the mold spreads therein until it surrounds the molding pin and thus forms both the peripheral wall of the passage V11.3 and the peripheral wall of the opening 011.
- the aforementioned mold and molding pin are respectively released: to do this, the molding pin is for example extracted from the mold before opening the latter, by pulling this molding pin along the passage axis X11 to gradually remove it from the internal volume V11 via the opening 011.
- the latter delimits, in a single piece, the passage V11.3 and the opening 011, which are aligned with each other along the passage axis X11, while being separated from each other by the sub-volume V11.2, as clearly visible in FIG. 3.
- each of the openings 012, 013, 014 and 015 is typically formed by molding-demolding the body 1 1 .
- the inlet 10.1 of the housing 10 is, in the embodiment considered in the figures, molded with the body 11. That said, in a variant not shown, it may be otherwise.
- each of the outlets 10.2 to 10.5 of the housing 10 is respectively parts which are distinct from the body 11 and fixedly attached in a sealed manner to the latter. More precisely, each of the outlets 10.2 to 10.5 comprises an end piece, respectively referenced 12 to 15, which is assembled to the body 11 in a fixed and sealed manner.
- each of the end pieces 12 to 15 comprises a tubular skirt 12.1, 13.1, 14.1, 15.1 which is centered on an axis X12, X13, X14, X15 along which this tubular skirt extends in length.
- the respective tubular skirts 12.1 to 15.1 of the end pieces 12 to 15 are axially received in a complementary manner in, respectively, the openings 012 to 015 of the body 11.
- the end pieces 12 to 15 are mounted on the body 11 by means of the coaxial and complementary engagement of their tubular skirt 12.1 to 15.1 in the respective openings 012 to 015 of the body 11, as clearly visible in FIGS.
- each of the tubular skirts 12.1 to 15.1 is internally shouldered, forming an internal shoulder 12.2, 13.2, 14.2, 15.2, i.e. projecting from the internal face of the tubular skirt, this internal shoulder being located at a distance, along the corresponding axis X12, X13, X14, X15 from the axial end of the tubular skirt, facing the sub-volume V11.2.
- each of the end pieces 12 to 15 has a peripheral rim 12.3, 13.3, 14.3, 15.3, which externally surrounds the corresponding tubular skirt 12.1 to 15.1.
- peripheral rims 12.3 to 15.3 extends in projection from the external face of the corresponding tubular skirt 12.1 to 15.1, running all around the corresponding axis X12 to X15.
- These peripheral rims 12.3 to 15.3 are made of plastic, in particular the same plastic as that constituting the body 11.
- the tubular skirts 12.1 to 15.1 are also made of plastic and are integrally formed, in particular by molding, with the corresponding peripheral rims 12.3 to 15.3, as in the example illustrated in the figures.
- each of the peripheral edges 12.3 to 15.3 is welded to the body 11, more precisely to the external face of the wall of the latter, surrounding the corresponding opening 011 to 015, and this so as to assemble the corresponding end piece 12 to 15 to the body 11 in a fixed and sealed manner.
- the welding between the body 11 and the peripheral edges 12.3 to 15.3 forms respective plastic welds W2, W3, W4 and W5, as shown schematically in FIGS. 3, 4 and 6: the specificities of these plastic welds W2 to W5 are not limiting since these plastic welds W2 to W5 ensure the fixed and sealed connection between the body 11 and the respective end pieces 12 to 15.
- each of the plastic welds W2 to W5 advantageously runs continuously all around the corresponding axis X12 to X15.
- multiple plastic welding techniques are conceivable, for example by applying vibrations and/or ultrasound, and this advantageously without worrying about the relative orientation around the corresponding axis X12 to X15 between the body 11 and the peripheral edges.
- each of the plastic welds W2 to W5 is advantageously produced by welding together plastic reliefs, which belong respectively to the body 11 and to the corresponding peripheral edge 12.3 to 15.3 and which are associated with hollows in which the plastic material in the heated state during the welding itself spreads in a contained manner.
- each of the end pieces 12 to 15 advantageously comprises a connection part 12.4 to 15.4 around which a pipe, not shown, such as a hose, which is attached externally to the valve 1 is easily connected.
- connection parts 12.4 to 15.4 are not limiting, multiple embodiments being possible. In the example illustrated in the figures, each of the connection parts
- 12.4 to 15.4 forms a tube, which is centered on the corresponding axis X12 to X15, being here rectilinear but which in a variant not shown can be bent, and which advantageously comes in one piece with the rest of the end piece 12 to 15.
- end pieces 12 to 15 provided that a plastic part of each end piece, such as the respective peripheral edges 12.3 to 15.3 of the end pieces 12 to 15, is welded to the body 11 by forming a corresponding plastic weld, such as the plastic welds V2 to V5, so as to assemble each end piece 12 to 15 to the body 11 in a fixed and sealed manner.
- a plastic part of each end piece such as the respective peripheral edges 12.3 to 15.3 of the end pieces 12 to 15
- a plastic weld such as the plastic welds V2 to V5
- the housing 10 includes a plug 16 which, in the assembled state of the valve 1, seals the opening 011 in a sealed manner with respect to the fluid regulated by the valve 1. In other words, the plug 16 completely closes the opening 011, normally preventing any flow of fluid through this opening.
- the plug 16 includes a solid wall 16.1, which, in the assembled state of the valve 1, completely covers the opening 011, being arranged transversely, or even perpendicularly to the passage axis X11, and which, on the outer periphery, is extended by a rim 16.2.
- This rim 16.2 is made of plastic, in particular the same plastic as that constituting the body 11 of the housing 10: for the purposes of the sealed assembly of the plug 16 to the body 11, the rim 16.2 is welded to the body 11, more precisely to the external face of the wall of the latter, surrounding the opening 011.
- the technical considerations, detailed above concerning the plastic welding of the end pieces 12 to 15 to the body 11 apply correspondingly to the welding of the plug 16 to the body 11.
- the plug 16 here advantageously includes a skirt 16.3, which projects from the solid wall 16.1 and which, in the assembled state of the valve 1, is received coaxially and complementary in the opening 011, as clearly visible in FIG. 7.
- the cap 16 is advantageously made from a single piece, made of plastic material.
- the solid wall 16.1 and the skirt 16.3 are advantageously molded with the rim 16.2 of the cap 16.
- the housing 10 further comprises a cover 17 which, in the assembled state of the valve 1 , is fixedly attached to the body 1 1 , as clearly visible in FIGS. 1 to 3. In FIGS. 4 and 5, the cover 17 does not appear since the valve 1 is shown there without this cover.
- This cover 17 and the body 11 delimit between them a compartment V17 which, in the assembled state of the valve 1 , is sealed off from the internal volume V1 1 , thus forming an internal region of the housing 10, which is sealed with respect to the fluid circulating through the valve. 1 via the internal volume V11.
- the cover 17 is secured in a sealed manner to the body 11, and this by any appropriate means, in particular by removable securing means to facilitate the assembly and maintenance of components of the valve 1 placed inside the compartment V17, such components being detailed later.
- the valve 1 comprises, inside the housing 10, a pump 30 making it possible to drive the aforementioned fluid through the housing 10 via the internal volume V11.
- This pump 30 comprises a hydraulic part 31 whose embodiment is not limiting since this hydraulic part 31 acts on the fluid to drive it through the housing 10 via the internal volume V11.
- This hydraulic part 31 of the pump 30 is provided with a suction 32, that is to say an orifice through which the fluid to be pumped by the pump 30 flows towards the inside of this hydraulic part 31 and thus enters the hydraulic part 31, and a discharge 33, that is to say an orifice through which the fluid pumped by the pump 30 flows towards the outside of the hydraulic part 31 and thus leaves this hydraulic part 31.
- the hydraulic part 31 of the pump 30 is carried by the body 11 of the housing 10, being arranged in the sub-volume V11.1 so that, on the one hand, the suction 32 opens into the inlet 10.1 of the housing 10 so that all the fluid entering the internal volume V11, via the inlet 10.1, is directly admitted at the inlet of the hydraulic part 31, as indicated schematically by the arrow F32 in FIG. 4, and, on the other hand, the discharge 33 opens into the passage V1 1 .3 so that all the fluid discharged by the hydraulic part 31 is directly sent to the inlet of this passage V1 1.3, as indicated schematically by the arrow F33 in FIG. 3.
- the hydraulic part 31 is assembled to the housing 10 with the interposition of sealing gaskets, which respectively form ad hoc sealing lines at the level of the suction 32 and the discharge 33.
- the pump in the embodiment considered in the figures, the pump
- a flange 34 or similar by means of which a casing of the hydraulic part 31 is secured to the body 11 and on which the cover 17 is mounted in a sealed manner.
- pump 30 is electric, in the sense that its hydraulic part
- the pump 30 comprises an electronic part 35 which controls the hydraulic part 31 by controlling the electric motor of the pump 30.
- the electronic part 35 includes a printed circuit 36, which is here fixedly supported by the casing of the hydraulic part 31, and various electronic components 37, which are mounted on the printed circuit 36 and which are designed to control the electric motor of the pump 30, by sending the latter electrical power and control signals.
- the functional and structural specificities of the electronic part 35 are not limiting, they will not be detailed further here.
- the electronic part 35 is housed inside the compartment V17, as clearly visible in FIGS. 3 and 5.
- the valve 1 also comprises a shutter 40 which is carried by the housing 10, being arranged in the internal volume V1 1 , more precisely, here, in the sub-volume V1 1 .2, and being movable therein relative to the housing 10, here in rotation around a shutter axis X40 relative to which the axes X12 to X15 of the end pieces 12 to 15 each extend transversely, or even perpendicularly.
- the shutter 40 allows, by its mobility, here in rotation around the shutter axis X40, to regulate the flow of the fluid through the housing 10 by controlling the opening-closing of the outlets 10.2 to 10.5 of the housing 10.
- the shutter 40 In the assembled state of the valve 1, the shutter 40 cooperates by sliding sealed contact with seat devices 22, 23, 24 and 25, which are respectively associated with the outlets 10.2 to 10.5 and which are carried by the housing 10, so that, for each of the seat devices 22 to 25, the shutter 40 is designed, depending on the position of the latter relative to the housing 10, here around the shutter axis X40, to:
- the shutter 40 allows the fluid to enter the sub-volume V11.2 from the passage V11.3, as indicated schematically by the arrow F40' in FIG. 3.
- the shutter 40 makes it possible to distribute the fluid entering the internal volume V1 1 of the body 1 1 of the housing 10 selectively into one or more of the outlets 10.2 to 10.5 of the housing.
- the shutter 40 advantageously comprises a generally tubular body 41, which is centered on the shutter axis X40.
- the tubular body 41 fixedly carries, on its external lateral face, spherical reliefs 42, which are centered on the shutter axis X40 and which are distributed in such a way that, when the shutter moves around the shutter axis X40, each of the spherical reliefs 42 cooperates, by complementarity of shapes, with one or more of the seat devices 22 to 25 to control the opening-closing of the outlets 10.2 to 10.5.
- the shutter 40 such as a vane shutter.
- each of the seat devices 22 to 25 is interposed between the shutter 40 and the end piece 12 to 15 of the outlet 10.2 to 10.5 associated with the seat device, and this along a seat axis which here coincides with the axis X12 to X15 of the corresponding end piece.
- each of the seat devices is received inside the tubular skirt 12.1 to 15.1 of the corresponding end piece 12 to 15, as clearly visible in FIGS. 3, 4 and 6.
- Each of the seat devices 22 to 25 comprises, along the corresponding axis X12 to X15 and moving away from the shutter 40, a support member 22.1, 23.1, 24.1, 25.1 and an elastic member 22.2, 23.2, 24.2, 25.2.
- each of the seat devices 22 to 25 here also comprises a sealing member 22.3, 23.3, 24.3, 25.3 which is interposed along the corresponding axis X12 to X15 between the support member 22.1 to 25.1 and the elastic member 22.2 to 25.2.
- the support member 22.1 to 25.1 of each of the seat devices 22 to 25 is mounted to move along the corresponding axis X12 to X15 relative to the corresponding end piece 12 to 15.
- the support member 22.1 to 25.1 cooperates by sealed sliding contact with the shutter 40 during the movement of the shutter 40 relative to the body 10, here in rotation about the shutter axis X40.
- the support member 22.1 to 25.1 is provided with a sliding contact surface, which is complementary to the shutter 40, here complementary to one of the spherical reliefs 42.
- This sliding contact surface is typically made of a non-stick material, such as a plastic material based on polytetrafluoroethylene.
- the support member 22.1 to 25.1 advantageously has a generally annular shape, which is centered on the corresponding axis X12 to X15 and of which an axial end edge carries the aforementioned sliding contact surface.
- the elastic member 22.2 to 25.2 of each of the seat devices 22 to 25 is mounted by bearing against the corresponding end piece 12 to 15 so as to keep the bearing member 22.1 to 25.1 applied against the shutter 40 along the corresponding axis X12 to X15 during the movement of the shutter 40 relative to the body 10, here in rotation about the shutter axis X40.
- the elastic member 22.2 to 25.2 bears, on one axial side, against the internal shoulder 12.2 to 15.2 of the tubular skirt 12.1 to
- the elastic member 22.2 to 25.2 is a wave spring, otherwise called a zigzag spring, centered on the corresponding axis X12 to X15; in a variant not shown, other embodiments are conceivable for the elastic member
- the elastic member 22.2 to 25.2 applies mechanical stresses to the corresponding end piece 12 to 15, here to the internal shoulder 12.2 to 15.2 of the corresponding tubular skirt 12.1 to 15.1, which tend to separate the corresponding end piece 12 to 15 from the body 11, in particular parallel to the axis X12 to X15: in order to guarantee the integrity of the housing 10 in the assembled state of the valve 1, the plastic weld W2 to W5 associated with the corresponding end piece 12 to 15 is designed, in particular by its dimensioning, to withstand these stresses applied by the elastic member 22.2 to 25.2 to the corresponding end piece 12 to 15.
- the sealing member 22.3 to 25.3 of each of the seat devices 22 to 25 is mounted to be applied in a sealed manner all around the corresponding axis X12 to X15 against an inner periphery of the tubular skirt 12.1 to 15.1 of the corresponding end piece 12 to 15.
- the elastic member 22.2 to 25.2 deforms the sealing member 22.3 to 25.3 to force the latter to be applied in a sealed manner against the inner periphery of the corresponding tubular skirt 12.1 to 15.1.
- the corresponding positioning ring 22.4 to 25.4 makes it possible to control the deformation stress applied to the sealing member 22.3 to 25.3 by the elastic member 22.2 to 25.2, this positioning ring 22.4 to 25.4 being mounted in abutment, along the corresponding axis X12 to X15, against the corresponding support member 22.1 to 25.1, as more particularly visible in FIG. 6 for the seat device 22.
- the sealing member 22.3 to 25.3 advantageously has a generally annular shape which is centered on the corresponding axis X12 to X15.
- the shutter 40 is guided in movement relative to the housing 10, here in rotation about the shutter axis X40, by a cover 18 of the housing 10.
- This cover 18 closes the internal volume V1 1 , here the sub-volume V11 .2, by sealingly closing an opening 018 of the body 11 of the housing 10.
- the opening 018 directly connects the sub-volume V11.2 to the outside of the body 11 and is typically formed by molding-demolding the body 11.
- the opening 018 has the specific feature of being provided for the purposes of mounting the shutter 40 inside the volume V1 1 , more precisely the sub-volume V1 1 .2. As more particularly visible in FIG.
- the cover 18 includes a solid wall 18.1, which, in the assembled state of the valve 1, completely covers the opening 018, being arranged here perpendicular to the shutter axis X40, and which, on the outer periphery, is extended by a rim 18.2.
- This rim 18.2 is made of plastic, in particular the same plastic as that constituting the body 11.
- the rim 18.2 is welded to the body 11, more precisely to the external face of the wall of the latter, surrounding the opening 018.
- the considerations developed above concerning the plastic welding between the end pieces 12 to 15 and the body 11 apply advantageously to the welding between the rim 18.2 of the cover 18 and the body 11, to ensure a fixed and sealed assembly of the cover 18 to the body 11.
- the valve 1 comprises an actuating device 50.
- This actuating device 50 is electromechanical in the sense that this actuating device is designed to transform the electrical energy supplying it into a mechanical driving force, applied to the shutter 40 to drive the latter relative to the housing 10, here in rotation around the shutter axis X40.
- the actuating device 50 is carried by the housing 10, being at least partially housed in the compartment V17.
- the actuating device 50 comprises an electric motor 51 and a mechanical transmission 52 which connects a drive output 53 of the electric motor 51 to the shutter 40.
- the electric motor 51 typically comprises a casing 54 inside which are arranged electromechanical components of the electric motor 51, which transform the electrical energy into motive force, the motive output 53 extending through the casing 54.
- the casing 54 is fixedly secured to the housing 10, in particular its body 11, by any suitable means, in particular in a dedicated housing of the latter, advantageously belonging to the compartment V17, as schematically indicated in FIG. 1.
- the drive output 53 is rotatable about a motor axis X51 relative to the housing 10, the mechanical transmission 52 being designed so that rotation of the drive output 53 about the motor axis 51 drives the shutter 40, here in rotation about the shutter axis X40.
- the mechanical transmission 52 comprises a gear 55 here consisting of several toothed wheels meshing successively with each other, a first of these wheels is engaged with the drive output 53 while the last of these toothed wheels is engaged with the shutter 40, here with an axial end of its tubular body 41.
- This gear 55 makes it possible to multiply the movement transmitted from the drive output 53 to the shutter 40.
- the mechanical transmission 52 in particular depending on the kinematics of the drive output 53 and the kinematics of the shutter 40.
- the drive output 53 and the mechanical transmission 52 are advantageously arranged in the compartment V17.
- the actuating device 50 in particular its electric motor 51, and the pump 30, in particular its electronic part 35, are electrically connected, inside the compartment V17, to respective connectors or, as here, to a single connector 19, this or these connectors being carried by the housing 10.
- the single connector 19 is fixedly and tightly secured to the cover 17, and this by any appropriate means.
- the connector(s) are designed to, outside the valve 1, each be connected to an attached harness, not shown, to electrically connect the valve 1 to one or more external units, which are not shown and which include an electrical power source.
- This electrical power source comprises for example a battery which is embedded in the vehicle to the cooling circuit of which the valve 1 belongs.
- the aforementioned external units include one or more control and/or supervision units, such as an on-board computer of the vehicle to the cooling circuit of which the valve 1 belongs: the or one of these control and/or supervision units is advantageously designed to control the electric motor 51, by sending the latter ad hoc electrical control signals, via the attached harness.
- control and/or supervision units such as an on-board computer of the vehicle to the cooling circuit of which the valve 1 belongs: the or one of these control and/or supervision units is advantageously designed to control the electric motor 51, by sending the latter ad hoc electrical control signals, via the attached harness.
- the control of the electric motor 51 is operated by an electronic device, which belongs to the valve 1 and which is housed in the compartment V17, in particular by being integrated into the electrical connection between the connector 19 and the electric motor 51: this electronic device, which is not shown in the figures, can also be coupled partially to the electronic part 35 of the pump 30 than to be totally separated from the latter, being in all cases adapted to send to the electric motor 51 electrical control signals and, where appropriate, power supply signals.
- valve 1 various arrangements and variations to valve 1 described so far are also possible:
- this pump can be dissociated from it; this means that the valve then does not include the pump 30 and that the internal volume V1 1 can be limited to the sub-volume V1 1.2, by means of a corresponding adaptation of the body 11 of the housing 10 and a connection by hose of the discharge of the remote pump with the inlet of the valve housing;
- the number of outputs of the box 10 is not necessarily equal to four, as envisaged in the figures, but may, for example, be limited to two or three or be equal to a number greater than four; and/or
- the relative arrangement between the shutter axis X40 and the motor axis X51 is not limited to what is envisaged in the figures in which these two axes are parallel, the motor axis X51 thus being able to extend transversely to the shutter axis X40, in particular perpendicularly or orthogonally to this shutter axis X40.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Lift Valve (AREA)
- Details Of Reciprocating Pumps (AREA)
- Valve Housings (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202480014864.0A CN120752466A (zh) | 2023-02-27 | 2024-02-26 | 流体分配电动阀 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2301790A FR3146181B1 (fr) | 2023-02-27 | 2023-02-27 | Vanne motorisée de distribution de fluide |
| FRFR2301790 | 2023-02-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2024179958A1 true WO2024179958A1 (fr) | 2024-09-06 |
Family
ID=86331991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2024/054752 Ceased WO2024179958A1 (fr) | 2023-02-27 | 2024-02-26 | Vanne motorisée de distribution de fluide |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN120752466A (fr) |
| FR (1) | FR3146181B1 (fr) |
| WO (1) | WO2024179958A1 (fr) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180066758A1 (en) * | 2015-03-30 | 2018-03-08 | Aisin Seiki Kabushiki Kaisha | Refrigerant control valve apparatus |
| US20180347448A1 (en) * | 2016-01-29 | 2018-12-06 | Nippon Thermostat Co., Ltd. | Valve device with fail-safe mechanism |
| US20230050115A1 (en) * | 2020-04-28 | 2023-02-16 | Denso Corporation | Valve device |
-
2023
- 2023-02-27 FR FR2301790A patent/FR3146181B1/fr active Active
-
2024
- 2024-02-26 CN CN202480014864.0A patent/CN120752466A/zh active Pending
- 2024-02-26 WO PCT/EP2024/054752 patent/WO2024179958A1/fr not_active Ceased
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180066758A1 (en) * | 2015-03-30 | 2018-03-08 | Aisin Seiki Kabushiki Kaisha | Refrigerant control valve apparatus |
| US20180347448A1 (en) * | 2016-01-29 | 2018-12-06 | Nippon Thermostat Co., Ltd. | Valve device with fail-safe mechanism |
| US20230050115A1 (en) * | 2020-04-28 | 2023-02-16 | Denso Corporation | Valve device |
Also Published As
| Publication number | Publication date |
|---|---|
| FR3146181B1 (fr) | 2025-05-16 |
| FR3146181A1 (fr) | 2024-08-30 |
| CN120752466A (zh) | 2025-10-03 |
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