WO2003006856A1 - Control valve - Google Patents

Control valve Download PDF

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Publication number
WO2003006856A1
WO2003006856A1 PCT/FR2002/002432 FR0202432W WO03006856A1 WO 2003006856 A1 WO2003006856 A1 WO 2003006856A1 FR 0202432 W FR0202432 W FR 0202432W WO 03006856 A1 WO03006856 A1 WO 03006856A1
Authority
WO
WIPO (PCT)
Prior art keywords
fluid
disc
movable
fixed
valve according
Prior art date
Application number
PCT/FR2002/002432
Other languages
French (fr)
Inventor
Carlos Martins
Michel Potier
Matthieu Chanfreau
Original Assignee
Valeo Thermique Moteur
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Valeo Thermique Moteur filed Critical Valeo Thermique Moteur
Publication of WO2003006856A1 publication Critical patent/WO2003006856A1/en

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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
    • 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
    • F16K11/085—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 cylindrical plug
    • F16K11/0856—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 cylindrical plug having all the connecting conduits situated in more than one plane perpendicular to the axis of the 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
    • 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
    • F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
    • F16K11/072—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with pivoted closure members
    • F16K11/074—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with pivoted closure members with flat sealing faces
    • 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
    • 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
    • F01P2060/00—Cooling circuits using auxiliaries
    • F01P2060/08—Cabin heater
    • 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

Definitions

  • the invention relates to a control valve for a fluid circulation circuit, as well as to circuits equipped with such a valve.
  • Such a cooling circuit is traversed by a cooling fluid, usually water with an antifreeze added, which circulates in a closed circuit under the action of a circulation pump.
  • a cooling fluid usually water with an antifreeze added
  • such a cooling circuit comprises several branches, including a branch which contains a cooling radiator, a branch which constitutes a bypass of the cooling radiator and a branch which contains a radiator, called "air heater", used for heating. of the passenger compartment.
  • thermostatic valve which comprises a fluid inlet connected to the engine outlet and two fluid outlets which correspond respectively to the branch containing the cooling radiator and to the branch forming a branch.
  • the valve circulates the coolant in a branch branch by shorting the cooler. As soon as the temperature of the coolant reaches and exceeds the above-mentioned threshold, the coolant passes through the cooling radiator and bypasses the branch branch.
  • the cooling fluid circulates permanently in the branch which contains the heating radiator, the heating of the passenger compartment being then obtained by mixing a flow of cold air and a flow of hot air which has swept the heating radiator. It is also known to provide a separate valve on the heating radiator to regulate the flow of cooling fluid passing through it.
  • valves generally used for this application are of the plug type. But, in addition to the fact that their bulk is important, they do not guarantee acceptable reliability throughout the life of the vehicle.
  • the invention aims to provide a control valve of reduced size and excellent robustness, intended for a fluid circulation circuit which, in a preferred embodiment of the invention, constitutes a cooling circuit of an engine motor vehicle thermal.
  • the subject of the invention is a control valve for a fluid circulation circuit, comprising a housing comprising a bottom wall provided with at least one fluid inlet, the housing being closed by a cover provided with fluid outlet pipes.
  • this control valve comprises inside the housing:
  • a fixed distributor disk comprising fluid passage openings in sealed connection, on a first face of the fixed disk, with fluid outlet pipes from the cover, and - a movable obturating disc, suitable for closing the openings of the fixed disc and disposed between the fixed dispensing disc and the bottom wall of the housing, to allow control of the outlets of fluid in the pipes of the cover as a function of the angular position of the disc mobile shutter.
  • the movable disc comprises in its center, on the opposite face of the bottom wall of the housing, a blind hole in the shape of a butterfly allowing for determined angular positions of the movable disc the flow of the inlet fluid into an outlet opening in the bottom wall of the housing, which makes it possible to significantly reduce the size of the valve by integrating a bypass circuit in the central part of the valve body.
  • the distribution of the fluid can be controlled according to a predefined law.
  • the movable disc is driven by a motor external to the housing.
  • the movable disc is coupled to one end of the motor drive shaft by means of a drive disc placed inside a hole located in the center of the fixed disc. It is advantageous for the drive disc to have lugs engaged in housings of the movable shutter disc.
  • the bottom wall has separate fluid inlets, located directly above the end openings of the pipes in sealed connection with the fixed distributor disc.
  • the butterfly-shaped blind hole is preferably surrounded by a compressed gasket between the movable obturating disc and the bottom wall in order to separate the fluid inlets from the bottom wall situated directly above the end openings of the tubing in contact with the fixed distributor disk of those allowing the introduction of an inlet fluid into the blind hole in the shape of a butterfly.
  • the seal between the movable disc and the fixed disc is obtained by the contact of their surfaces with one another.
  • These contact surfaces are advantageously made of a material known to be non-deformable, with a low coefficient of friction, such as ceramic.
  • the contact pressure of the surfaces of the movable and fixed discs is preferably ensured by a seal housed in a groove in the cover also serving for partitioning the openings of the fixed disc.
  • the valve of the invention can thus equip a fluid circulation circuit, and in particular a cooling circuit of a motor vehicle engine, to independently manage the coolant flow rates in the various pipes of the circuit.
  • the circuit is produced in the form of a cooling circuit of a heat engine of a motor vehicle which is traversed by a cooling fluid under the action of a circulation pump.
  • the control valve is a three-way valve, the fluid inlet of which is connected to an inlet for coolant coming from the engine, and the three outlets of which are connected respectively to the fluid inlets of an engine cooling radiator and an air heater for heating the passenger compartment as well as a bypass line for the cooling radiator facilitating the cold start of the engine.
  • FIG. 1 is a perspective view of a control valve according to the invention.
  • FIGS. 2a to 2e are front and side views, from above and from below of the control valve of Figure 1
  • FIGS. 3 and 4 are exploded perspective views respectively from above and from below of the control valve of Figure 1;
  • FIGS. 5 to 8 are sectional views taken respectively along lines AA, BB, CC, DD of Figures 2a to 2b;
  • FIG. 10 shows a cooling circuit of a thermal engine of a motor vehicle equipped with a control or regulation valve according to the invention.
  • the control valve shown comprises a cylindrical housing 1 of axis of revolution XX ', limited by a bottom wall 2 and a lateral cylindrical wall 3.
  • the cylindrical housing 1 is closed by a cover 4 supporting the fluid outlet pipes 5 and 6 oriented in parallel directions and in opposite directions and opening into the bottom of the cover by orifices 5a and 6a placed at its periphery.
  • the orifice 5a has the shape of a sector of an arc of a circle of radius RI whose center is located in the middle of the cover 4 and which is truncated at its top by a circular sector of radius R2 smaller than the radius RI of the same angle at the top.
  • the orifice 6a is located near the orifice 5a and has the shape of a circle whose diameter is substantially equal to the difference of the radii RI and R2 of the two aforementioned circular sectors and whose center is located at the distance R2 + (RI - R2) / 2 from the center of the cover. Ears 7a and 7b make it possible to fix the housing 1 and the cover 4 on a fluid supply device, not shown.
  • the bottom wall 2 has openings 8, 9 for fluid inlet having shapes and dimensions respectively identical to those of the orifices 5a and 6a.
  • the openings 8 and 9 are on the other hand arranged around two fluid inlet / outlet openings 10 and 11 arranged near the center of the bottom wall 2 and respectively perpendicular to the openings 5a and 6a.
  • a movable disc 12 substantially of the same diameter, crossed by a light 13 for passage of fluid, of similar shape but of longer dimension and oriented so as to be able to come by rotation about the axis XX ' above the openings 8 and 9 and embrace in this configuration all the fluid leaving the openings 8 and 9 and obscure it partially or completely for positioning angles around the axis XX 'which are different.
  • the face in contact with the bottom wall 2 has at its center a blind hole 14, for example in the shape of a butterfly, which allows, depending on the angular position of the movable disc 12, when it completely or partially covers the openings 10 and 11, a circulation of fluid through them.
  • the movable disc 12 is rotated about the axis XX 'by a drive disc 15 comprising lugs 16 engaged in blind housings 17 formed in the movable disc 12 on the face opposite to that which rests on the wall of bottom 2.
  • the drive disc 15 has at its center a square hole 18 for engaging the end of a shaft of a drive motor, not shown.
  • Above the movable disc 12 rests a fixed disc 19 held in rotation on the wall of the housing by lugs (not shown) and crossed in its center by a circular hole 20 in which the drive disc 15 freely rotates.
  • Lights 21 and 22 of fluid passage having respectively shapes and dimensions substantially identical to those of the fluid inlet openings 8 and 9 of the bottom wall 2, are formed around the circular hole 20 through the thickness of the fixed disc 19.
  • the lights 21 and 22 are situated respectively at the base of the openings 8 and 9 as well as the orifices 5a and 6a with which they can communicate via the light 13 of the movable disc 12.
  • the liquid enters the housing 1 through the opening 8 opposite the lumen 21 of the fixed disc 19 and the orifice 5a of the tube 5. It also enters the housing 1 on the one hand, through the circular opening 9 opposite the opening 22 of the fixed disc 19 and the orifice 6a of the tube 6 and on the other hand, through the opening 10 of the bypass circuit formed by the blind hole 14.
  • the liquid which enters the valve body cannot escape into the pipes 5 and 6 and / or flow simultaneously into the openings 10 and 11 only when the moving disc 3 occupies a position around the axis XX ′, such that the light 13 and / or the blind hole 14 put the inlet orifices 5a and 6a and / or the openings 10 and 11 into communication.
  • FIGS. 9a to 9v which represent from 15 ° to 15 ° different positions taken by the movable disc 12 rotating clockwise, only the configurations in FIGS. 9a, 9b, 9c, 9d and 9v allow the inlet liquid to escape both into the outlet pipes 5 and 6 and through the openings 10 and 11.
  • FIGS. 9e and 9f the inlet liquid can escape only through the tube 6 and through the openings 10 and 11.
  • the movable disc 12 makes it possible, by masking all or part of the openings 5a, 6a, 10 and 11, to effectively and progressively control the flow of the fluid leaving the pipes 5 and 6 as well as that circulating through the openings 10 and 11.
  • the different positions occupied by the disc 12 are obtained by an appropriate control circuit for the drive motor of the movable disc 12 which may possibly be a stepping motor.
  • the seal between the valve and the fluid supply device is achieved by seals (not shown) positioned on the bottom wall 2 outside the housing, one 23 at its periphery, the other 24 around openings 10 and 11.
  • the presence or absence of the seal 25 depends the permissible leakage level between the movable disc 12 and the bottom wall 2.
  • the seal between the movable disc 12 and the fixed disc 19 is obtained by contact with the surfaces, these being preferably made of ceramic.
  • the contact pressure is provided by a seal 28 housed in a groove 26 formed in the cover 4, this support seal also serving to partition the passages 21 and 22 of the fixed disc 19, as well as the drive shaft of the disc. 15 (not shown).
  • the seal of the cover 4 with the housing 1 is obtained by a seal 27.
  • the seals 28 and 27 can optionally be combined in a single seal (not shown).
  • a control valve 29 according to the invention distributes the cooling fluid which circulates under the action of a pump 30.
  • the fluid which is typically water with antifreeze added, is heated by the engine 40 and leaves the latter via an outlet 31 which is connected to the fluid inlets 8, 9 and 10 of the valve 29.
  • the outlet pipes 5 and 6 supply, respectively through conduits 32 and 33, a cooling radiator 34 and an air heater 35 for heating the passenger compartment of the vehicle . After passing through the cooling radiator 34 and the air heater 35, the fluid returns to the pump 30 by return pipes 36 and 37.
  • a pipe 38 directly connects the outlet 11 of the valve to the pump 30.
  • the valve makes it possible to independently manage the flow rates of fluid in the aforementioned conduits and thus makes it possible to optimize the temperature of the heat engine 40 and the heating of the passenger compartment.
  • connection with the bypass duct 38 is interrupted and the fluid is circulated in the radiator 34, a part of the fluid also being able to circulate through the air heater 35.
  • valve of the invention is susceptible of numerous variant embodiments. It is of course not limited to a three-way valve as in the embodiment described above. It is also not limited to an application for the cooling circuit of a thermal engine of a motor vehicle and can be used for other uses in different fields.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Multiple-Way Valves (AREA)

Abstract

The invention relates to a control valve consisting of a casing (1) comprising a base (2) which is equipped with at least one fluid inlet. Said casing (1) is closed by means of a cover (4) which is fitted with fluid outlet tubes (5, 6). A fixed distributor disk (19), which is disposed inside the casing, is used to distribute the fluid in the tubes (5, 6) by means of openings (21, 22). A movable sealing disk (12) is used to seal the openings (21, 22) in the fixed disk (19) and is disposed between the fixed distributor disk (19) and the base (2) of the casing. Said sealing disk is used to control the fluid flowing out into the tubes (5, 6) in the cover (4) according to the angular position of the movable sealing disk (12). The inventive valve is particularly suitable for cooling circuits for motor vehicle heat engines.

Description

VANNE DE COMMANDE CONTROL VALVE
L'invention se rapporte à une vanne de commande pour un circuit de circulation de fluide, ainsi qu'aux circuits équipés d'une telle vanne.The invention relates to a control valve for a fluid circulation circuit, as well as to circuits equipped with such a valve.
Elle s'applique notamment à la réalisation d'un circuit de refroidissement pour moteur thermique de véhicule automobile.It applies in particular to the production of a cooling circuit for a thermal engine of a motor vehicle.
Un tel circuit de refroidissement est parcouru par un fluide de refroidissement, habituellement de l'eau additionnée d'un antigel, qui circule en circuit fermé sous l'action d'une pompe de circulation.Such a cooling circuit is traversed by a cooling fluid, usually water with an antifreeze added, which circulates in a closed circuit under the action of a circulation pump.
Généralement, un tel circuit de refroidissement comprend plusieurs branches, dont une branche qui contient un radia- teur de refroidissement, une branche qui constitue une dérivation du radiateur de refroidissement et une branche qui contient un radiateur, appelé "aérother e" , servant au chauffage de l'habitacle.Generally, such a cooling circuit comprises several branches, including a branch which contains a cooling radiator, a branch which constitutes a bypass of the cooling radiator and a branch which contains a radiator, called "air heater", used for heating. of the passenger compartment.
II est connu d'utiliser une vanne thermostatique qui comprend une entrée de fluide reliée à la sortie du moteur et deux sorties de fluide qui correspondent respectivement à la branche contenant le radiateur de refroidissement et à la branche formant dérivation.It is known to use a thermostatic valve which comprises a fluid inlet connected to the engine outlet and two fluid outlets which correspond respectively to the branch containing the cooling radiator and to the branch forming a branch.
Lors du démarrage à froid du moteur, et tant que la température du fluide de refroidissement n'atteint pas un certain seuil, la vanne fait circuler le fluide de refroidissement dans une branche de dérivation en court-circuitant le radiateur de refroidissement. Dès que la température du fluide de refroidissement atteint et dépasse le seuil précité, le fluide de refroidissement traverse le radiateur de refroidissement et contourne la branche de dérivation. Généralement, le fluide de refroidissement circule en permanence dans la branche qui contient le radiateur de chauffage, le chauffage de l'habitacle étant alors obtenu par mixage d'un flux d'air froid et d'un flux d'air chaud qui a balayé le radiateur de chauffage. Il est connu aussi de prévoir une vanne séparée sur le radiateur de chauffage pour régler le débit de fluide de refroidissement qui le traverse.During the cold start of the engine, and as long as the temperature of the coolant does not reach a certain threshold, the valve circulates the coolant in a branch branch by shorting the cooler. As soon as the temperature of the coolant reaches and exceeds the above-mentioned threshold, the coolant passes through the cooling radiator and bypasses the branch branch. Generally, the cooling fluid circulates permanently in the branch which contains the heating radiator, the heating of the passenger compartment being then obtained by mixing a flow of cold air and a flow of hot air which has swept the heating radiator. It is also known to provide a separate valve on the heating radiator to regulate the flow of cooling fluid passing through it.
Les vannes généralement utilisées pour cette application sont du type à boisseau. Mais, outre le fait que leur encombrement est important, elles ne permettent pas de garantir une fiabilité acceptable durant toute la vie du véhicule.The valves generally used for this application are of the plug type. But, in addition to the fact that their bulk is important, they do not guarantee acceptable reliability throughout the life of the vehicle.
L'invention vise à procurer une vanne de commande d'encombrement réduit et d'excellente robustesse, destinée à un circuit de circulation de fluide qui, dans une forme de réalisation préférée de l'invention, constitue un circuit de refroidissement d'un moteur thermique de véhicule automobile.The invention aims to provide a control valve of reduced size and excellent robustness, intended for a fluid circulation circuit which, in a preferred embodiment of the invention, constitutes a cooling circuit of an engine motor vehicle thermal.
Dans cette application particulière, elle vise à procurer une vanne qui permet de gérer indépendamment le débit de fluide de refroidissement dans les différentes branches du circuit de refroidissement du moteur, afin d'optimiser la température du moteur thermique et le chauffage de l'habitacle.In this particular application, it aims to provide a valve which makes it possible to independently manage the flow of cooling fluid in the different branches of the engine cooling circuit, in order to optimize the temperature of the heat engine and the heating of the passenger compartment.
A cet effet, l'invention a pour objet, une vanne de commande pour un circuit de circulation de fluide, comprenant un boîtier comportant une paroi de fond munie d'au moins une entrée de fluide, le boîtier étant fermé par un couvercle muni de tubulures de sortie de fluide.To this end, the subject of the invention is a control valve for a fluid circulation circuit, comprising a housing comprising a bottom wall provided with at least one fluid inlet, the housing being closed by a cover provided with fluid outlet pipes.
Selon une définition générale de l'invention, cette vanne de commande comprend à l'intérieur du boîtier :According to a general definition of the invention, this control valve comprises inside the housing:
- un disque fixe distributeur comportant des lumières de passage de fluide en liaison étanche, sur une première face du disque fixe, avec des tubulures de sortie de fluide du couvercle, et - un disque mobile obturateur, propre à obturer les lumières du disque fixe et disposé entre le disque fixe distributeur et la paroi de fond du boîtier, pour permettre un contrôle des sorties de fluide dans les tubulures du couvercle en fonction de la position angulaire du disque mobile obturateur.a fixed distributor disk comprising fluid passage openings in sealed connection, on a first face of the fixed disk, with fluid outlet pipes from the cover, and - a movable obturating disc, suitable for closing the openings of the fixed disc and disposed between the fixed dispensing disc and the bottom wall of the housing, to allow control of the outlets of fluid in the pipes of the cover as a function of the angular position of the disc mobile shutter.
Selon une autre caractéristique de l'invention, le disque mobile comporte en son centre, sur la face en regard de la paroi de fond du boîtier, un trou borgne en forme de papillon permettant pour des positions angulaires déterminées du disque mobile l'écoulement du fluide d'entrée dans une ouverture de sortie pratiquée dans la paroi de fond du boîtier, ce qui permet de réduire notablement l'encombrement de la vanne par l'intégration d'un circuit de dérivation dans la partie centrale du corps de la vanne.According to another characteristic of the invention, the movable disc comprises in its center, on the opposite face of the bottom wall of the housing, a blind hole in the shape of a butterfly allowing for determined angular positions of the movable disc the flow of the inlet fluid into an outlet opening in the bottom wall of the housing, which makes it possible to significantly reduce the size of the valve by integrating a bypass circuit in the central part of the valve body.
Il est ainsi possible de gérer le débit de fluide au travers des différentes sorties de la vanne, et cela en fonction de la position angulaire donnée au disque mobile de la vanne.It is thus possible to manage the flow of fluid through the various outputs of the valve, and this as a function of the angular position given to the movable disc of the valve.
De cette manière, la distribution du fluide peut être commandée selon une loi prédéfinie.In this way, the distribution of the fluid can be controlled according to a predefined law.
Selon une autre caractéristique de l'invention, le disque mobile est entraîné par un moteur extérieur au boîtier. Avantageusement, le disque mobile est couplé à une extrémité de l'arbre de transmission du moteur par l'intermédiaire d'un disque d'entraînement placé a l'intérieur d'un trou situé au centre du disque fixe. Il est avantageux que le disque d'entraînement comporte des ergots engagés dans des logements du disque mobile obturateur .According to another characteristic of the invention, the movable disc is driven by a motor external to the housing. Advantageously, the movable disc is coupled to one end of the motor drive shaft by means of a drive disc placed inside a hole located in the center of the fixed disc. It is advantageous for the drive disc to have lugs engaged in housings of the movable shutter disc.
Selon encore une autre caractéristique de l'invention, la paroi de fond comporte des entrées de fluide séparées, situées à l'aplomb des ouvertures d'extrémité des tubulures en liaison étanche avec le disque fixe distributeur. Le trou borgne en forme de papillon est de préférence entouré par un joint comprimé entre le disque mobile obturateur et la paroi de fond afin de séparer les entrées de fluide de la paroi de fond situées à l'aplomb des ouvertures d'extrémité des tubulures en contact avec le disque fixe distributeur de celles permettant l'introduction d'un fluide d'entrée dans le trou borgne en forme de papillon.According to yet another characteristic of the invention, the bottom wall has separate fluid inlets, located directly above the end openings of the pipes in sealed connection with the fixed distributor disc. The butterfly-shaped blind hole is preferably surrounded by a compressed gasket between the movable obturating disc and the bottom wall in order to separate the fluid inlets from the bottom wall situated directly above the end openings of the tubing in contact with the fixed distributor disk of those allowing the introduction of an inlet fluid into the blind hole in the shape of a butterfly.
De préférence encore, l'étanchéité entre le disque mobile et le disque fixe est obtenue par le contact de leurs surfaces entre elles. Ces surfaces de contact sont avantageusement réalisées dans un matériau réputé indéformable, à faible coefficient de frottement, comme la céramique.More preferably, the seal between the movable disc and the fixed disc is obtained by the contact of their surfaces with one another. These contact surfaces are advantageously made of a material known to be non-deformable, with a low coefficient of friction, such as ceramic.
La pression de contact des surfaces des disques mobile et fixe est assurée de préférence par un joint logé dans une rainure du couvercle servant également au cloisonnement des ouvertures du disque fixe.The contact pressure of the surfaces of the movable and fixed discs is preferably ensured by a seal housed in a groove in the cover also serving for partitioning the openings of the fixed disc.
La vanne de l'invention peut ainsi équiper un circuit de circulation de fluide, et en particulier un circuit de refroidissement d'un moteur de véhicule automobile, pour gérer indépendamment les débits de fluide de refroidissement dans les différentes conduites du circuit.The valve of the invention can thus equip a fluid circulation circuit, and in particular a cooling circuit of a motor vehicle engine, to independently manage the coolant flow rates in the various pipes of the circuit.
Suivant une application préférentielle de l'invention, le circuit est réalisé sous la forme d'un circuit de refroidissement d'un moteur thermique de véhicule automobile qui est parcouru par un fluide de refroidissement sous l'action d'une pompe de circulation. Dans cette application, la vanne de commande est une vanne à trois voies, dont l'entrée de fluide est reliée a une arrivée de fluide de refroidissement en provenance du moteur, et dont les trois sorties sont reliées respectivement à des entrées de fluide d'un radiateur de refroidissement du moteur et d'un aérotherme pour le chauffage de l'habitacle ainsi qu'à une conduite de dérivation du radiateur de refroidissement facilitant le démarrage à froid du moteur. Dans la description détaillée qui suit, faite à titre d'exemple, on se réfère aux dessins annexés, sur lesquels :According to a preferred application of the invention, the circuit is produced in the form of a cooling circuit of a heat engine of a motor vehicle which is traversed by a cooling fluid under the action of a circulation pump. In this application, the control valve is a three-way valve, the fluid inlet of which is connected to an inlet for coolant coming from the engine, and the three outlets of which are connected respectively to the fluid inlets of an engine cooling radiator and an air heater for heating the passenger compartment as well as a bypass line for the cooling radiator facilitating the cold start of the engine. In the detailed description which follows, given by way of example, reference is made to the appended drawings, in which:
- la figure 1 est une vue en perspective d'une vanne de commande selon l'invention ;- Figure 1 is a perspective view of a control valve according to the invention;
- les figures 2a à 2e sont des vues de face et de profil, de dessus et de dessous de la vanne de commande de la figure 1- Figures 2a to 2e are front and side views, from above and from below of the control valve of Figure 1
- les figures 3 et 4 sont des vues éclatées en perspective respectivement par le de dessus et par le dessous de la vanne de commande de la figure 1 ;- Figures 3 and 4 are exploded perspective views respectively from above and from below of the control valve of Figure 1;
- les figures 5 à 8 sont des vues en coupe prises respectivement suivant les lignes AA, BB, CC, DD des figures 2a à 2b ;- Figures 5 to 8 are sectional views taken respectively along lines AA, BB, CC, DD of Figures 2a to 2b;
- les figures 9a à 9v montrent différentes positions occupées par le disque rotatif des figures 3 et 4 ; et- Figures 9a to 9v show different positions occupied by the rotary disc of Figures 3 and 4; and
- la figure 10 montre un circuit de refroidissement d'un moteur thermique de véhicule automobile équipé d'une vanne de commande ou régulation selon l'invention.- Figure 10 shows a cooling circuit of a thermal engine of a motor vehicle equipped with a control or regulation valve according to the invention.
Selon les figures 1 à 8 où les éléments homologues portent les mêmes références, la vanne de commande représentée comprend un boîtier cylindrique 1 d'axe de révolution XX', limité par une paroi de fond 2 et une paroi cylindrique latérale 3. Le boîtier cylindrique 1 est fermé par un couvercle 4 supportant des tubulures 5 et 6 de sortie de fluide orientées suivant des directions parallèles et de sens opposés et débouchant dans le fond du couvercle par des orifices 5a et 6a placés à sa périphérie. Comme représenté sur la vue en coupe de la figure 5, l'orifice 5a a la forme d'un secteur d'arc de cercle de rayon RI dont le centre est situé au milieu du couvercle 4 et qui est tronqué à son sommet par un secteur circulaire de rayon R2 plus petit que le rayon RI de même angle au sommet. L'orifice 6a est situé à proximité de l'orifice 5a et a la forme d'un cercle dont le diamètre est sensiblement égal à la différence des rayons RI et R2 des deux secteurs circulaires précités et dont le centre est situé à la distance R2 + (RI - R2)/2 du centre du couvercle. Des oreilles 7a et 7b permettent de fixer le boîtier 1 et le couvercle 4 sur un dispositif d'amenée de fluide, non représenté.According to Figures 1 to 8 where the homologous elements have the same references, the control valve shown comprises a cylindrical housing 1 of axis of revolution XX ', limited by a bottom wall 2 and a lateral cylindrical wall 3. The cylindrical housing 1 is closed by a cover 4 supporting the fluid outlet pipes 5 and 6 oriented in parallel directions and in opposite directions and opening into the bottom of the cover by orifices 5a and 6a placed at its periphery. As shown in the sectional view of FIG. 5, the orifice 5a has the shape of a sector of an arc of a circle of radius RI whose center is located in the middle of the cover 4 and which is truncated at its top by a circular sector of radius R2 smaller than the radius RI of the same angle at the top. The orifice 6a is located near the orifice 5a and has the shape of a circle whose diameter is substantially equal to the difference of the radii RI and R2 of the two aforementioned circular sectors and whose center is located at the distance R2 + (RI - R2) / 2 from the center of the cover. Ears 7a and 7b make it possible to fix the housing 1 and the cover 4 on a fluid supply device, not shown.
La paroi de fond 2 comporte des ouvertures 8, 9 d'entrée de fluide ayant des formes et dimensions respectivement identi- ques à celles des orifices 5a et 6a. Les ouvertures 8 et 9 sont d'autre part disposées autour de deux ouvertures 10 et 11 d'entrée / sortie de fluide disposées près du centre de la paroi de fond 2 et respectivement à l'aplomb des ouvertures 5a et 6a.The bottom wall 2 has openings 8, 9 for fluid inlet having shapes and dimensions respectively identical to those of the orifices 5a and 6a. The openings 8 and 9 are on the other hand arranged around two fluid inlet / outlet openings 10 and 11 arranged near the center of the bottom wall 2 and respectively perpendicular to the openings 5a and 6a.
Sur la paroi de fond 2 repose un disque mobile 12 sensiblement de même diamètre, traversé par une lumière 13 de passage de fluide, de forme similaire mais de dimension plus longue et orientée de façon à pouvoir venir par rotation autour de l'axe XX' au dessus des ouvertures 8 et 9 et embrasser dans cette configuration tout le fluide sortant des ouvertures 8 et 9 et l'occulter partiellement ou totalement pour des angles de positionnement autour de l'axe XX' qui sont différents. La face en contact avec la paroi de fond 2 comporte en son centre un trou borgne 14, par exemple en forme de papillon, qui permet en fonction de la position angulaire du disque mobile 12, lorsqu'il recouvre totalement ou partiellement les ouvertures 10 et 11, une circulation de fluide au travers de celles-ci.On the bottom wall 2 rests a movable disc 12 substantially of the same diameter, crossed by a light 13 for passage of fluid, of similar shape but of longer dimension and oriented so as to be able to come by rotation about the axis XX ' above the openings 8 and 9 and embrace in this configuration all the fluid leaving the openings 8 and 9 and obscure it partially or completely for positioning angles around the axis XX 'which are different. The face in contact with the bottom wall 2 has at its center a blind hole 14, for example in the shape of a butterfly, which allows, depending on the angular position of the movable disc 12, when it completely or partially covers the openings 10 and 11, a circulation of fluid through them.
Le disque mobile 12 est entraîné en rotation autour de l'axe XX' par un disque d'entraînement 15 comportant des ergots 16 engagés dans des logements borgnes 17 pratiqués dans le disque mobile 12 sur la face opposée à celle qui repose sur la paroi de fond 2. Le disque d'entraînement 15 comporte en son centre un trou carré 18 permettant d'engager l'extrémité d'un arbre d'un moteur d'entraînement, non représenté. Au dessus du disque mobile 12 repose un disque fixe 19 retenu en rotation sur la paroi du boîtier par des ergots (non représentés) et traversé en son centre par un trou circulaire 20 dans lequel tourne librement le disque d'entraînement 15. Des lumières 21 et 22 de passage de fluide ayant respectivement des formes et des dimensions sensiblement identiques à celles des ouvertures 8 et 9 d'entrée de fluide de la paroi de fond 2, sont pratiquées autour du trou circulaire 20 au travers de l'épaisseur du disque fixe 19. Les lumières 21 et 22 sont situées respectivement à l'aplomb des ouvertures 8 et 9 ainsi que des orifices 5a et 6a avec lesquels elles peuvent communiquer par l'intermédiaire de la lumière 13 du disque mobile 12.The movable disc 12 is rotated about the axis XX 'by a drive disc 15 comprising lugs 16 engaged in blind housings 17 formed in the movable disc 12 on the face opposite to that which rests on the wall of bottom 2. The drive disc 15 has at its center a square hole 18 for engaging the end of a shaft of a drive motor, not shown. Above the movable disc 12 rests a fixed disc 19 held in rotation on the wall of the housing by lugs (not shown) and crossed in its center by a circular hole 20 in which the drive disc 15 freely rotates. Lights 21 and 22 of fluid passage having respectively shapes and dimensions substantially identical to those of the fluid inlet openings 8 and 9 of the bottom wall 2, are formed around the circular hole 20 through the thickness of the fixed disc 19. The lights 21 and 22 are situated respectively at the base of the openings 8 and 9 as well as the orifices 5a and 6a with which they can communicate via the light 13 of the movable disc 12.
Le liquide entre dans le boîtier 1 par l'ouverture 8 en regard de la lumière 21 du disque fixe 19 et de l'orifice 5a de la tubulure 5. Il entre également dans le boîtier 1 d'une part, par l'ouverture circulaire 9 en regard de l'ouverture 22 du disque fixe 19 et de l'orifice 6a de la tubulure 6 et d'autre part, par l'ouverture 10 du circuit de dérivation formé par le trou borgne 14.The liquid enters the housing 1 through the opening 8 opposite the lumen 21 of the fixed disc 19 and the orifice 5a of the tube 5. It also enters the housing 1 on the one hand, through the circular opening 9 opposite the opening 22 of the fixed disc 19 and the orifice 6a of the tube 6 and on the other hand, through the opening 10 of the bypass circuit formed by the blind hole 14.
Le liquide qui entre dans le corps de vanne ne peut s'échapper dans les tubulures 5 et 6 et/ou s'écouler simultanément dans les ouvertures 10 et 11 que lorsque le disque mobile 3 occupe une position autour de l'axe XX', telle que la lumière 13 et/ou le trou borgne 14 mettent en communication les orifices d'entrée 5a et 6a et/ou les ouvertures 10 et 11.The liquid which enters the valve body cannot escape into the pipes 5 and 6 and / or flow simultaneously into the openings 10 and 11 only when the moving disc 3 occupies a position around the axis XX ′, such that the light 13 and / or the blind hole 14 put the inlet orifices 5a and 6a and / or the openings 10 and 11 into communication.
Sur les figures 9a à 9v, qui représentent de 15° en 15° différentes positions prises par le disque mobile 12 en rotation dans le sens horaire, seules les configurations des figures 9a, 9b, 9c, 9d et 9v permettent au liquide d'entrée de s'échapper à la fois dans les tubulures de sortie 5 et 6 et au travers des ouvertures 10 et 11. Sur les figures 9e et 9f, le liquide d'entrée ne peut s'échapper que par la tubulure 6 et au travers des ouvertures 10 et 11.In FIGS. 9a to 9v, which represent from 15 ° to 15 ° different positions taken by the movable disc 12 rotating clockwise, only the configurations in FIGS. 9a, 9b, 9c, 9d and 9v allow the inlet liquid to escape both into the outlet pipes 5 and 6 and through the openings 10 and 11. In FIGS. 9e and 9f, the inlet liquid can escape only through the tube 6 and through the openings 10 and 11.
Sur les figures 9g et 9h, seule la tubulure 6 est alimentée par le fluide d'entrée.In Figures 9g and 9h, only the tubing 6 is supplied by the inlet fluid.
Sur les figures 9i à 9m, seules les ouvertures 10 et 11 sont alimentées par le fluide d'entrée.In FIGS. 9i to 9m, only the openings 10 and 11 are supplied by the inlet fluid.
Sur les figures 9n à 9p, seules les ouvertures 10 et 11 ainsi que la tubulure 5 sont alimentées par le fluide d'entrée.In FIGS. 9n to 9p, only the openings 10 and 11 as well as the tubing 5 are supplied by the inlet fluid.
Sur les figures 9q à 9s, seule la tubulure 5 est alimentée par le fluide d'entrée.In FIGS. 9q to 9s, only the tubing 5 is supplied by the inlet fluid.
Sur les figures 9t et 9u, seules les tubulures 5 et 6 sont alimentées par le fluide d'entrée.In FIGS. 9t and 9u, only the pipes 5 and 6 are supplied by the inlet fluid.
Ainsi, dans sa progression autour de l'axe XX', le disque mobile 12 permet en masquant tout ou partie des ouvertures 5a, 6a, 10 et 11, de contrôler efficacement et de façon progressive, le débit du fluide sortant des tubulures 5 et 6 ainsi que de celui circulant au travers des ouvertures 10 et 11. Les différentes positions occupées par le disque 12 sont obtenues par un circuit de commande approprié du moteur d'entraînement du disque mobile 12 qui éventuellement peut être un moteur pas a pas.Thus, in its progression around the axis XX ′, the movable disc 12 makes it possible, by masking all or part of the openings 5a, 6a, 10 and 11, to effectively and progressively control the flow of the fluid leaving the pipes 5 and 6 as well as that circulating through the openings 10 and 11. The different positions occupied by the disc 12 are obtained by an appropriate control circuit for the drive motor of the movable disc 12 which may possibly be a stepping motor.
L'étanchéité entre la vanne et le dispositif d'amenée du fluide est réalisée par des joints (non représentés) positionnés sur la paroi de fond 2 à l'extérieur du boîtier, l'un 23 à sa périphérie, l'autre 24 autour des ouvertures 10 et 11.The seal between the valve and the fluid supply device is achieved by seals (not shown) positioned on the bottom wall 2 outside the housing, one 23 at its periphery, the other 24 around openings 10 and 11.
A l'intérieur du boîtier 1, un joint 25 entourant le trou borgne 14, assure l'étanchéité entre les ouvertures 10, 11 et les ouvertures 8 et 9. La présence ou non du joint 25 dépend du niveau de fuite admissible entre le disque mobile 12 et la paroi de fond 2.Inside the housing 1, a seal 25 surrounding the blind hole 14, seals between the openings 10, 11 and the openings 8 and 9. The presence or absence of the seal 25 depends the permissible leakage level between the movable disc 12 and the bottom wall 2.
L'étanchéité entre le disque mobile 12 et le disque fixe 19 est obtenue par contact des surfaces, celles ci étant réalisées de préférence en céramique. La pression de contact est assurée par un joint 28 logé dans une rainure 26 ménagée dans le couvercle 4, ce joint d'appui servant également à cloisonner les passages 21 et 22 du disque fixe 19, ainsi que l'arbre d'entraînement du disque 15 (non représenté).The seal between the movable disc 12 and the fixed disc 19 is obtained by contact with the surfaces, these being preferably made of ceramic. The contact pressure is provided by a seal 28 housed in a groove 26 formed in the cover 4, this support seal also serving to partition the passages 21 and 22 of the fixed disc 19, as well as the drive shaft of the disc. 15 (not shown).
L'étanchéité du couvercle 4 avec le boîtier 1 est obtenue par un joint 27. Les joints 28 et 27 peuvent éventuellement être réunis en un seul joint (non représenté).The seal of the cover 4 with the housing 1 is obtained by a seal 27. The seals 28 and 27 can optionally be combined in a single seal (not shown).
Dans l'exemple de la figure 10, qui représente schématique- ment le montage d'une vanne de commande selon l'invention dans le circuit de refroidissement d'un moteur thermique 40 de véhicule automobile, une vanne de commande 29 selon l'invention assure la distribution du fluide de refroidissement qui circule sous l'action d'une pompe 30. Le fluide, qui est typiquement de l'eau additionnée d'antigel, est échauffé par le moteur 40 et quitte ce dernier par une sortie 31 qui est reliée aux entrées de fluide 8, 9 et 10 de la vanne 29. Les tubulures de sortie 5 et 6 alimentent, respectivement par des conduits 32 et 33, un radiateur de refroidissement 34 et un aérotherme 35 servant au chauffage de l'habitacle du véhicule. Après avoir traversé le radiateur de refroidissement 34 et l' aérotherme 35 le fluide retourne à la pompe 30 par des conduits de retour 36 et 37. Un conduit 38 relie directement la sortie 11 de la vanne à la pompe 30.In the example of FIG. 10, which schematically represents the mounting of a control valve according to the invention in the cooling circuit of a heat engine 40 of a motor vehicle, a control valve 29 according to the invention distributes the cooling fluid which circulates under the action of a pump 30. The fluid, which is typically water with antifreeze added, is heated by the engine 40 and leaves the latter via an outlet 31 which is connected to the fluid inlets 8, 9 and 10 of the valve 29. The outlet pipes 5 and 6 supply, respectively through conduits 32 and 33, a cooling radiator 34 and an air heater 35 for heating the passenger compartment of the vehicle . After passing through the cooling radiator 34 and the air heater 35, the fluid returns to the pump 30 by return pipes 36 and 37. A pipe 38 directly connects the outlet 11 of the valve to the pump 30.
La vanne permet de gérer indépendamment les débits de fluide dans les conduits précités et permet ainsi d'optimiser la température du moteur thermique 40 et le chauffage de l'habitacle.The valve makes it possible to independently manage the flow rates of fluid in the aforementioned conduits and thus makes it possible to optimize the temperature of the heat engine 40 and the heating of the passenger compartment.
En particulier lors du démarrage à froid du moteur, elle permet de faire circuler le fluide dans le conduit de dérivation 38 sans passer par le radiateur 34. Pendant cette phase de démarrage il est aussi possible de faire passer une partie de fluide dans l' aérotherme 35, si un chauffage est désiré.In particular during the cold start of the engine, it makes it possible to circulate the fluid in the duct of bypass 38 without passing through the radiator 34. During this start-up phase it is also possible to pass part of the fluid through the air heater 35, if heating is desired.
Lorsque la température du fluide a atteint ou dépassé un seuil prédéterminé, la liaison avec le conduit de dérivation 38 est interrompue et le fluide est mis en circulation dans le radiateur 34, une partie du fluide pouvant également circuler au travers de l' aérotherme 35.When the temperature of the fluid has reached or exceeded a predetermined threshold, the connection with the bypass duct 38 is interrupted and the fluid is circulated in the radiator 34, a part of the fluid also being able to circulate through the air heater 35.
Bien entendu, la vanne de l'invention est susceptible de nombreuses variantes de réalisation. Elle n'est bien sûr pas limitée a une vanne à trois voies comme dans la forme de réalisation décrite précédemment. Elle n'est pas non plus limitée à une application pour circuit de refroidissement de moteur thermique de véhicule automobile et peut servir à d'autres usages dans des domaines différents. Of course, the valve of the invention is susceptible of numerous variant embodiments. It is of course not limited to a three-way valve as in the embodiment described above. It is also not limited to an application for the cooling circuit of a thermal engine of a motor vehicle and can be used for other uses in different fields.

Claims

Revendicationsclaims
1- Vanne de commande pour un circuit de circulation de fluide, comprenant un boîtier (1) comportant une paroi de fond (2) munie d'au moins une entrée de fluide, le boîtier (1) étant fermé par un couvercle (4) muni de tubulures (5,6) de sortie de fluide,1- Control valve for a fluid circulation circuit, comprising a housing (1) comprising a bottom wall (2) provided with at least one fluid inlet, the housing (1) being closed by a cover (4) fitted with fluid outlet pipes (5,6),
caractérisée en ce qu'elle comprend, à l'intérieur du boîtier (1)characterized in that it comprises, inside the housing (1)
- un disque fixe distributeur (19) comportant des lumières de passage de fluide (21,22) en liaison étanche sur une première face du disque fixe (19) avec des tubulures (5,6) de sortie de fluide du couvercle (4), et- a fixed distributor disc (19) comprising fluid passage openings (21,22) in sealed connection on a first face of the fixed disc (19) with pipes (5,6) for fluid outlet from the cover (4) , and
- un disque mobile obturateur (12) propre à obturer les lumières (21,22) du disque fixe (19), disposé entre le disque fixe distributeur (19) et la paroi de fond (2) du boîtier (1), pour permettre un contrôle des sorties de fluide dans les tubulures (5,6) du couvercle (4) en fonction de la position angulaire du disque mobile obturateur (12).- a movable shutter disc (12) suitable for closing the openings (21, 22) of the fixed disc (19), disposed between the fixed distributor disc (19) and the bottom wall (2) of the housing (1), to allow a control of the fluid outlets in the pipes (5,6) of the cover (4) as a function of the angular position of the movable obturator disc (12).
2- Vanne selon la revendication 1, caractérisée en ce que le disque mobile (12) comporte en son centre sur la face en regard de la paroi de fond (2) du boîtier (1), un trou borgne (14) en forme de papillon permettant, pour des positions angulaires déterminées du disque mobile (12), l'écoulement du fluide d'entrée dans une ouverture de sortie (11) pratiquée dans la paroi de fond (2) du boîtier (1).2- Valve according to claim 1, characterized in that the movable disc (12) has in its center on the opposite face of the bottom wall (2) of the housing (1), a blind hole (14) in the form of butterfly allowing, for determined angular positions of the movable disc (12), the flow of the inlet fluid into an outlet opening (11) formed in the bottom wall (2) of the housing (1).
3- Vanne selon l'une des revendications 1 et 2, caractérisée en ce que le disque mobile (12) est entraîné par un moteur extérieur au boîtier (1).3- Valve according to one of claims 1 and 2, characterized in that the movable disc (12) is driven by a motor external to the housing (1).
4- Vanne selon la revendication 3, caractérisée en ce que le disque mobile (12) est couplé à une extrémité de l'arbre de transmission du moteur par l'intermédiaire d'un disque d' entraînement( 15) placé à l'intérieur d'un trou (20) situé au centre du disque fixe (19).4- Valve according to claim 3, characterized in that the movable disc (12) is coupled to one end of the motor transmission shaft by means of a disc drive (15) placed inside a hole (20) located in the center of the fixed disc (19).
5- Vanne selon la revendication 4, caractérisée en ce que le disque d'entraînement (15) comporte des ergots (16) engagés dans des logements du disque mobile obturateur (12).5- Valve according to claim 4, characterized in that the drive disc (15) comprises lugs (16) engaged in housings of the movable shutter disc (12).
6- Vanne selon l'une des revendications 1 à 5, caractérisée en ce que la paroi de fond (2) comporte des entrées de fluide (8,9) séparées, situées à l'aplomb des ouvertures (5a, 6a) d'extrémité des tubulures en liaison étanche avec le disque fixe (19) distributeur.6- Valve according to one of claims 1 to 5, characterized in that the bottom wall (2) has separate fluid inlets (8,9), located directly above the openings (5a, 6a) of end of the tubes in leaktight connection with the fixed distributor disc (19).
7- Vanne selon les revendications 2 et 6, caractérisée en ce que le trou borgne (14) en forme de papillon est entouré par un joint (25) comprimé entre le disque mobile obturateur (12) et la paroi de fond (2) afin de séparer les entrées de fluide (8,9) de la paroi de fond (2) situées à l'aplomb des ouvertures (5a, 6a) d'extrémité des tubulures (5,6) en contact avec le disque fixe distributeur (19) de celles (10,11) permettant l'introduction d'un fluide d'entrée dans le trou borgne (14) en forme de papillon.7- Valve according to claims 2 and 6, characterized in that the blind hole (14) in the shape of a butterfly is surrounded by a seal (25) compressed between the movable shutter disc (12) and the bottom wall (2) so to separate the fluid inlets (8, 9) from the bottom wall (2) situated directly above the openings (5a, 6a) at the end of the pipes (5, 6) in contact with the fixed distributor disc (19 ) of those (10,11) allowing the introduction of an inlet fluid into the blind hole (14) in the form of a butterfly.
8- Vanne selon l'une des revendications 1 à 7, caractérisée en ce que l'étanchéité entre le disque mobile (12) et le disque fixe (19) est obtenue par le contact de leurs surfaces entre elles.8- Valve according to one of claims 1 to 7, characterized in that the seal between the movable disc (12) and the fixed disc (19) is obtained by the contact of their surfaces with each other.
9- Vanne selon la revendication 8, caractérisée en ce que les surfaces de contact des disques mobile et fixe (12, 19) sont réalisées dans un matériau réputé indéformable, à faible coefficient de frottement, comme la céramique.9- Valve according to claim 8, characterized in that the contact surfaces of the movable and fixed discs (12, 19) are made of a material said to be non-deformable, with a low coefficient of friction, such as ceramic.
10- Vanne selon l'une des revendications 8 et 9, caractérisée en ce que la pression de contact des surfaces des disques mobile et fixe (12, 19) est assurée par un joint (28) logé dans une rainure (26) du couvercle (4) servant également au cloisonnement des ouvertures du disque fixe (19). 11- Circuit de circulation de fluide, caractérisé en ce qu'il comprend une vanne de commande selon l'une des revendications 1 à 10, dont l'entrée de fluide (8, 9, 10) est reliée à une source de fluide et dont les sorties de fluide sont reliées respectivement à des conduits (32, 33, 38) du circuit.10- Valve according to one of claims 8 and 9, characterized in that the contact pressure of the surfaces of the movable and fixed discs (12, 19) is provided by a seal (28) housed in a groove (26) of the cover (4) also serving to partition the openings of the fixed disc (19). 11- Fluid circulation circuit, characterized in that it comprises a control valve according to one of claims 1 to 10, whose fluid inlet (8, 9, 10) is connected to a source of fluid and whose fluid outlets are respectively connected to conduits (32, 33, 38) of the circuit.
12- Circuit selon la revendication 11, caractérisé en ce qu'il est réalisé sous la forme d'un circuit de refroidissement d'un moteur thermique (40) de véhicule automobile, qui est parcouru par un fluide de refroidissement sous l'action d'une pompe de circulation ( 30), et en ce que la vanne de commande (29) est une vanne à trois voies, dont l'entrée de fluide (8, 9,10) est reliée à une arrivée (31) de fluide de refroidissement en provenance du moteur (40), et dont les deux tubulures de sorties de fluide (5, 6) sont reliées respectivement à une entrée de fluide d'un radiateur de refroidissement (34) et à une entrée de fluide d'un aérotherme (35) de chauffage de l'habitacle du véhicule et dont la sortie de fluide (11) du circuit de dérivation formé par le trou borgne (14) est reliée à une conduite de dérivation du radiateur de refroidissement (38). 12- A circuit according to claim 11, characterized in that it is produced in the form of a cooling circuit of a heat engine (40) of a motor vehicle, which is traversed by a cooling fluid under the action of '' a circulation pump (30), and in that the control valve (29) is a three-way valve, the fluid inlet (8, 9,10) of which is connected to a fluid inlet (31) cooling from the engine (40), the two fluid outlet pipes (5, 6) of which are connected respectively to a fluid inlet of a cooling radiator (34) and to a fluid inlet of a air heater (35) for heating the passenger compartment of the vehicle and the fluid outlet (11) of the bypass circuit formed by the blind hole (14) is connected to a bypass line of the cooling radiator (38).
PCT/FR2002/002432 2001-07-11 2002-07-10 Control valve WO2003006856A1 (en)

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FR0109222A FR2827356B1 (en) 2001-07-11 2001-07-11 DISC CONTROL VALVE FOR FLUID CIRCUIT

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US5950576A (en) * 1998-06-30 1999-09-14 Siemens Canada Limited Proportional coolant valve
DE10000772A1 (en) * 1999-01-11 2000-07-13 Elbi Int Spa Hydraulic distributor for electric domestic appliances has valve devices with specific component parts

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017012722A1 (en) * 2015-07-22 2017-01-26 Volkswagen Aktiengesellschaft Coolant distribution module for a coolant circuit
WO2019077064A1 (en) * 2017-10-19 2019-04-25 Renault S.A.S Valve for a fluid circuit, notably for an engine exhaust gas recirculation circuit
WO2019077075A1 (en) * 2017-10-19 2019-04-25 Renault S.A.S Valve for a fluid circuit, notably for an engine exhaust gas recirculation circuit
FR3072753A1 (en) * 2017-10-19 2019-04-26 Renault S.A.S. VALVE FOR A FLUID CIRCUIT, IN PARTICULAR AN EXHAUST GAS RECIRCULATION CIRCUIT FOR AN ENGINE
WO2019183725A1 (en) * 2018-03-26 2019-10-03 Litens Automotive Partnership Vehicular thermal management module
KR20200141433A (en) * 2018-03-26 2020-12-18 리텐스 오토모티브 파트너쉽 Automotive Thermal Management Module
KR102560923B1 (en) 2018-03-26 2023-07-31 리텐스 오토모티브 파트너쉽 Automotive thermal management module
DE102021112436A1 (en) 2021-05-12 2022-11-17 Schaeffler Technologies AG & Co. KG Coolant controller of a cooling system of a vehicle drive
DE102021112436B4 (en) 2021-05-12 2023-03-09 Schaeffler Technologies AG & Co. KG Coolant controller of a cooling system of a vehicle drive

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FR2827356B1 (en) 2004-11-05
FR2827356A1 (en) 2003-01-17

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