WO2003006859A1 - Improved sealed control valve and production method thereof - Google Patents

Improved sealed control valve and production method thereof Download PDF

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Publication number
WO2003006859A1
WO2003006859A1 PCT/FR2002/002434 FR0202434W WO03006859A1 WO 2003006859 A1 WO2003006859 A1 WO 2003006859A1 FR 0202434 W FR0202434 W FR 0202434W WO 03006859 A1 WO03006859 A1 WO 03006859A1
Authority
WO
WIPO (PCT)
Prior art keywords
seal
control valve
branches
circular
valve according
Prior art date
Application number
PCT/FR2002/002434
Other languages
French (fr)
Inventor
Gérard Gille
Michel Potier
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 WO2003006859A1 publication Critical patent/WO2003006859A1/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

Definitions

  • the invention relates to a control valve intended for a fluid circulation circuit, in particular for a cooling circuit of a heat engine of a motor vehicle.
  • a control valve of the type comprising a body of generally cylindrical shape, provided with a fluid inlet opening axially and at least two fluid outlets opening in a cylindrical side wall, the body defining a cylindrical housing for an adjustment member produced in the form of a cylinder suitable for rotating about an axis of rotation and for taking different angular positions to control the distribution of the fluid.
  • the fluid penetrates axially into the body of the valve through the fluid inlet and is then distributed through the outlets, according to the angular position given to the adjusting member.
  • a control valve of this type most often comprises two or three fluid outlets which are angularly offset and / or in the axial direction and which are each controlled by a cylindrical portion of the adjusting member, in which is formed one or several passage openings.
  • Valves of this type generally include several seals which are mounted on the valve body. For this, it is necessary to be able, by means of a molding device, to carry out the housing of the seal at each outlet, which is generally impossible in the case of three or four-way valves. It is then necessary to provide for the mounting of the seal from the outside of the valve body, which implies bringing the fluid outlets or even making the adjustment member in two parts.
  • the object of the invention is in particular to overcome the aforementioned drawbacks.
  • control valve of the type defined above which includes an improved seal making it possible to ensure the seal between the different paths of the valve, and this regardless of the number of paths.
  • control valve of the type defined above, which comprises a seal made in one piece and having spaced circular branches and transverse branches connecting together the circular branches, said circular branches and / or said branches transverse being suitable for forming a seal between the side wall of the body and the rotating member.
  • This provides a one-piece structure seal formed by a set of circular branches spaced apart. of the others and held together by transverse branches.
  • the seal is kept fixed inside the side wall of the body.
  • the transverse branches of the seal are produced in the form of profiled ribs extending parallel to each other and formed projecting outwards from the circular branches and suitable for engaging respectively in longitudinal grooves formed in the side wall of the body.
  • each profiled rib comprises a tail capable of engaging in a longitudinal groove of the side wall of the body and two lips capable of coming into leaktight contact with the adjustment member.
  • the circular branches of the seal are located on either side of cylindrical regions of the adjusting member in which the passage openings are formed.
  • each profiled rib comprises a tail capable of engaging without friction in a circular groove of the adjusting member and two curved lips capable of coming into tight contact with the adjusting member, on either side of the circular groove.
  • the seal is preferably formed by winding a generally planar molded part. It is advantageously formed from an elastomeric or thermoplastic material.
  • the body is made in the form of an open housing intended to be closed by a cover which includes the fluid inlet.
  • the invention relates to a method of manufacturing a control valve of the type defined above, which comprises the following operations:
  • the joint is advantageously produced by molding an elastomeric or thermoplastic material, while, in operation c), the two ends are advantageously joined together by welding, gluing, stapling, or mechanical maintenance during the 'operation d).
  • These two ends preferably constitute, respectively, the two halves of a transverse branch which are joined together during operation c).
  • the body is produced in the form of an open box intended to be closed by a cover
  • the method comprises an additional operation e) consisting in assembling the cover on the body to enclose the adjustment and seal.
  • FIG. 3 is a perspective view of the valve body, partially broken away, housing the adjusting member and the seal;
  • FIG. 4 is a perspective view of the flat molded seal
  • FIG. 6 is a perspective view of the adjustment member equipped with the seal
  • FIG. 7 is a longitudinal sectional view of the adjustment member equipped with the seal
  • FIG. 8 is a cross-sectional view of the adjustment member equipped with the seal
  • FIG. 9 is a detail on an enlarged scale showing a transverse branch of the seal formed by the union of the two ends of the seal;
  • Figure 10 is a sectional view on an enlarged scale showing another transverse branch of the seal
  • Figure 11 is a sectional view on an enlarged scale showing a circular branch cooperating with a circular groove of the adjusting member
  • Figure 12 is a perspective view illustrating an alternative embodiment of the seal.
  • the control valve 10 shown in Figure 1 comprises a body 12 of generally cylindrical shape, limited by a bottom wall 14 and a cylindrical side wall 16 of axis XX.
  • a body 12 of generally cylindrical shape limited by a bottom wall 14 and a cylindrical side wall 16 of axis XX.
  • three fluid outlet pipes 18, 20 and 22 open. These three outlet pipes lead to axial heights and to angular positions chosen with respect to the axis XX.
  • the pipes 18, 20 and 22 open radially into the wall 16 and they have different diameters.
  • the valve body 12 has a circular open face 24 intended to be closed by a cover 26 which is provided with a fluid inlet pipe 28, directed in the direction of the axis XX.
  • the side wall 16 of the valve body has an internal cylindrical surface 30 delimiting a housing 32 for an adjustment member 34.
  • This adjustment member 34 may define an interior cavity 36 suitable for being supplied with fluid by the inlet pipe 28 of valve.
  • the adjusting member 34 is then produced in the form of a hollow cylinder capable of rotating around the axis of rotation XX. It has an intermediate cylindrical surface 38 provided with two passage openings 40 and framed by two other cylindrical surfaces 42 and 44 situated at the end.
  • the cylindrical surface 42 is provided with three passage openings 46, while the cylindrical surface 44 is provided with a passage opening 48.
  • the adjusting member 34 is able to assume different angular positions chosen, under the action of a control member (not shown), for controlling the distribution of the fluid through the outlets 18, 20 and 22.
  • it may also be a truncated cylinder, as described in the French patent application FR 01 / 09.218.
  • the cover 26 is provided with three tabs 52 intended to be crossed by screws (not shown) cooperating with corresponding bosses 54 presented by the valve body.
  • a seal 56 of annular shape is disposed between the open face 24 of the body 12 and the cover 26. Furthermore, the adjustment member 34 ends in a nozzle 58 surrounded by a seal 60 and suitable for pass through an opening (not visible in Figure 1) that includes the bottom 14 of the body 12. In this way, the adjusting member 34 can be rotated by a suitable control member located outside.
  • the seal 50 which can also be seen in FIGS. 2 and 3, is a compartmentalized one-piece seal making it possible to seal between the different paths (the fluid inlet 28 and the three fluid outlets 18 , 20 and 22) of the valve 10.
  • This seal comprises, in the example, four circular branches spaced apart 62 ⁇ to 62 4 capable of forming a seal between the side wall 16 of the body and the adjusting member 34.
  • These circular branches are joined together, in the example, by seven transverse branches 64 ⁇ to 64 7 which extend parallel to each other and parallel to the axis XX. In addition to their spacing function, the transverse branches 64 ⁇ to 64 7 are used to maintain the seal, in a fixed position, inside the side wall 16.
  • the circular branches 62 ⁇ to 62 4 are spaced such that 'they come to be on either side of the cylindrical regions 38, 42 and 44 of the adjusting member 34.
  • the branches 62 ⁇ and 62 2 frame the cylindrical end surface 44
  • the branches 62 2 and 62 3 frame the intermediate cylindrical surface 38
  • the branches 62 3 and 62 4 frame the cylindrical end surface 42.
  • the seal 50 is advantageously formed from a flat molded part, as shown in Figure 4.
  • This molded part advantageously made of a material of the elastomer type, comprises longitudinal branches 62 ⁇ to 62 4 intended to subsequently form, after winding, the corresponding circular branches. These longitudinal branches are joined together by transverse branches 64 ⁇ to 64 7, which extend parallel to one another.
  • the adjusting member 34 comprises at its periphery circular grooves 66 ⁇ to 66 ( Figure 5) intended to receive respectively, the branches 62 ⁇ to 62.
  • the end of the transverse branch 64 7 is applied against one of the generatrices of the adjusting member, then the entire seal is wound around it, so that the branches 62 x to 62 4 come to engage respectively in the grooves 66 ⁇ to 66 4 , which makes it possible to obtain a wound seal as shown in Figure 6.
  • the ends of the seal, formed by the transverse branches 64 ⁇ and 64 7 are joined together by an appropriate process, such as welding, gluing, stapling or mechanical maintenance.
  • the circular branches 62 and the transverse branches 64 are made in the form of profiled ribs of suitable shape.
  • the transverse branches 64 2 to 64c have the structure shown in Figures 8 and 10. They extend parallel to each other and are formed projecting outwards from the circular branches.
  • Each profiled rib comprises a tail 68 adapted to engage in a longitudinal groove 70 of the side wall of the valve body ( Figure 1) and two lips 72 ( Figure 10) capable of coming into tight contact with the adjusting member.
  • the end limbs 64 64 ⁇ and 7 are two halves of a rib of the aforementioned type ( Figure 9). After assembly between them, they form a complete profile similar to that of a rib 64 as shown in FIG. 10.
  • the circular branches 62 ⁇ to 62 4 of the joint are produced in the form of profiled ribs suitable for engaging without friction, respectively in the grooves 66 x to 66 4 mentioned above.
  • Each of the ribs comprises a tail 74 suitable for engaging without friction in a corresponding groove 66 ( Figure 1).
  • the tail 74 has a width less than that of the corresponding groove 66.
  • This tail 74 is connected to two lips 76 which are curved so as to come into sealed contact with the adjustment member 34, on either side of the circular groove 66 ( Figure 11).
  • the seal may also have one or more annular branches 100, in the form of sealing rings, located at at least one of the orifices through which the fluid outlet conduits 18,20 , 22 open into the body 12 of the valve.
  • the one or more branches surround the one or more orifices, for example by matching the inside of the side wall 16 of the body 12 in the vicinity thereof.
  • This or these annular branches 100 are connected to the circular branches 62 and / or to the transverse branches 64 and are produced in a single piece with the said branches. They make it possible to reinforce the seal without harming or little the level of friction between the body 12 and the adjusting member 34.
  • the control valve is formed first the seal flat molding, so as to have two opposite ends (64 ⁇ branches 7 and 64) as shown in Figure 4.
  • winding the seal in a selected position around the adjusting member 34, so that the branches 62 ⁇ to 62 4 engage, respectively, in the grooves 66 ⁇ to 66 4 Figure 5
  • the two end branches 64 ⁇ and 6 j r are combined, which makes it possible to obtain an adjustment member pre-equipped with the seal ( Figure 6).
  • the assembly is introduced axially inside the housing 32 of the body 12, so that the branches 64 ⁇ to 6 ⁇ come to engage in the grooves 70 of the valve body.
  • the inventive control valve can be used in different fluid circulation circuits.
  • the fluid inlet 28 of the valve is then advantageously connected to an inlet for coolant coming from the engine.
  • the three fluid outlets 18, 20 and 22 are then respectively connected to a first branch of the circuit which contains a cooling radiator, to a second branch of the circuit which constitutes a bypass of the cooling radiator and to a third branch of the circuit which contains an air heater for heating the passenger compartment.
  • valve with three fluid outlets and can be used for valves with two or even four fluid outlets.
  • the invention has been described with particular reference to a seal produced by winding, it is conceivable to produce a one-piece shaped seal which is then forcibly threaded around the adjusting member, before putting on in place of the assembly inside the valve body.

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

Abstract

The invention relates to a control valve comprising a generally cylindrical body (12) which is equipped with a fluid inlet (28) which runs axially and at least two fluid outlets (18, 20, 22) which are disposed in a cylindrical lateral wall (16). Said body defines a cylindrical housing (32) for a hollow cylindrical control element (34) that rotates around an axis of rotation (XX) and occupies different angular positions in order to control the distribution of the fluid through the outlets by means of passage openings (40, 46, 48) which are disposed in the cylinder. The inventive valve comprises a one-piece sealing joint (50) which is provided with spaced out circular arms (62), which form a seal between the side wall (16) of the body and the control element (34), and transverse arms (64) which connect the circular arms (62). The invention is particularly suitable for motor vehicle engine cooling circuits.

Description

Vanne de commande à étanchéité améliorée et son procédé de fabricationImproved sealing control valve and method of manufacturing the same
L' invention se rapporte à une vanne de commande destinée à un circuit de circulation de fluide, en particulier à un circuit de refroidissement d'un moteur thermique de véhicule automobile.The invention relates to a control valve intended for a fluid circulation circuit, in particular for a cooling circuit of a heat engine of a motor vehicle.
Elle concerne plus particulièrement une vanne de commande du type comprenant un corps de forme générale cylindrique, muni d'une entrée de fluide débouchant axialement et d'au moins deux sorties de fluide débouchant dans une paroi latérale cylindrique, le corps délimitant un logement cylindrique pour un organe de réglage réalisé sous la forme d'un cylindre propre à tourner autour d'un axe de rotation et à prendre différentes positions angulaires pour contrôler la distribution du fluide.It relates more particularly to a control valve of the type comprising a body of generally cylindrical shape, provided with a fluid inlet opening axially and at least two fluid outlets opening in a cylindrical side wall, the body defining a cylindrical housing for an adjustment member produced in the form of a cylinder suitable for rotating about an axis of rotation and for taking different angular positions to control the distribution of the fluid.
Dans une vanne de commande de ce type, le fluide pénètre axialement dans le corps de la vanne par l'entrée de fluide et est ensuite distribué au travers des sorties, en fonction de la position angulaire donnée à l'organe de réglage.In a control valve of this type, the fluid penetrates axially into the body of the valve through the fluid inlet and is then distributed through the outlets, according to the angular position given to the adjusting member.
Une vanne de commande de ce type comprend le plus souvent deux ou trois sorties de fluide qui sont décalées angulairement et/ou dans la direction axiale et qui sont contrôlées chacune par une portion cylindrique de l'organe de réglage, dans laquelle est formée une ou plusieurs ouvertures de passage.A control valve of this type most often comprises two or three fluid outlets which are angularly offset and / or in the axial direction and which are each controlled by a cylindrical portion of the adjusting member, in which is formed one or several passage openings.
La réalisation de telles vannes pose des problèmes particuliers pour assurer l' étanchéité entre l'organe de réglage et la paroi latérale du corps de vanne. Cette étanchéité doit pouvoir absorber les différences de dilatation entre le corps de la vanne et l'organe de réglage, et tenir compte aussi des tolérances de fabrication et d'éventuels défauts de surface présentés par la paroi latérale et/ou l'organe de réglage. Il faut en outre veiller à limiter les frictions entre le corps et l'organe de réglage de la vanne,The production of such valves poses particular problems in ensuring the seal between the adjusting member and the side wall of the valve body. This seal must be able to absorb the differences in expansion between the valve body and the adjusting member, and also take into account manufacturing tolerances and any surface defects presented by the side wall and / or the adjusting member. . Care should also be taken to limit friction between the body and the valve adjusting member,
Les vannes de ce type comprennent généralement plusieurs joints qui sont montés sur le corps de vanne. Pour cela, il faut pouvoir, au moyen d'un artifice de moulage, réaliser le logement du joint à chaque sortie, ce qui s'avère généralement impossible dans le cas de vannes à trois ou quatre voies. Il faut alors prévoir le montage du joint par l'extérieur du corps de la vanne, ce qui implique de rapporter les sorties de fluide ou encore de réaliser l'organe de réglage en deux parties.Valves of this type generally include several seals which are mounted on the valve body. For this, it is necessary to be able, by means of a molding device, to carry out the housing of the seal at each outlet, which is generally impossible in the case of three or four-way valves. It is then necessary to provide for the mounting of the seal from the outside of the valve body, which implies bringing the fluid outlets or even making the adjustment member in two parts.
L'invention a notamment pour but de surmonter les inconvénients précités.The object of the invention is in particular to overcome the aforementioned drawbacks.
Elle vise en particulier à procurer une vanne de commande du type défini précédemment, qui comporte un joint d' étanchéité perfectionné permettant d'assurer l' étanchéité entre les différentes voies de la vanne, et cela quel que soit le nombre de voies.It aims in particular to provide a control valve of the type defined above, which includes an improved seal making it possible to ensure the seal between the different paths of the valve, and this regardless of the number of paths.
Elle vise encore à procurer une vanne de commande du type précité, dont la fabrication et le montage du joint d' étanchéité sont grandement simplifiés par rapport aux vannes de la technique antérieure.It also aims to provide a control valve of the aforementioned type, the manufacture and mounting of the gasket are greatly simplified compared to the valves of the prior art.
L'invention propose à cet effet une vanne de commande du type défini précédemment, laquelle comprend un joint d' étanchéité réalisé monobloc et ayant des branches circulaires espacées et des branches transversales reliant entre elles les branches circulaires, lesdites branches circulaires et/ou lesdites branches transversales étant propres à former étanchéité entre la paroi latérale du corps et l'organe tournant.The invention provides for this purpose a control valve of the type defined above, which comprises a seal made in one piece and having spaced circular branches and transverse branches connecting together the circular branches, said circular branches and / or said branches transverse being suitable for forming a seal between the side wall of the body and the rotating member.
On procure ainsi un joint d' étanchéité de structure monobloc formé par un ensemble de branches circulaires espacées les unes des autres et maintenues entre elles par des branches transversales .This provides a one-piece structure seal formed by a set of circular branches spaced apart. of the others and held together by transverse branches.
Dans une forme de réalisation préférée de l'invention, le joint d' étanchéité est maintenu fixe à l'intérieur de la paroi latérale du corps. Dans cette forme de réalisation préférée de l'invention, les branches transversales du joint d' étanchéité sont réalisées sous la forme de nervures profilées s' étendant parallèlement entre elles et formées en saillie vers l'extérieur des branches circulaires et propres à s'engager respectivement dans des rainures longitudinales formées dans la paroi latérale du corps.In a preferred embodiment of the invention, the seal is kept fixed inside the side wall of the body. In this preferred embodiment of the invention, the transverse branches of the seal are produced in the form of profiled ribs extending parallel to each other and formed projecting outwards from the circular branches and suitable for engaging respectively in longitudinal grooves formed in the side wall of the body.
Avantageusement, chaque nervure profilée comprend une queue propre à s'engager dans une rainure longitudinale de la paroi latérale du corps et deux lèvres propres à venir en contact étanche avec l'organe de réglage.Advantageously, each profiled rib comprises a tail capable of engaging in a longitudinal groove of the side wall of the body and two lips capable of coming into leaktight contact with the adjustment member.
Les branches circulaires du joint d' étanchéité sont situées de part et d'autre de régions cylindriques de l'organe de réglage dans lesquelles sont formées les ouvertures de passage.The circular branches of the seal are located on either side of cylindrical regions of the adjusting member in which the passage openings are formed.
Elles sont avantageusement réalisées sous la forme de nervures profilées propres à s'engager sans frottement, respectivement dans des gorges circulaires formées à la périphérie de l'organe de réglage.They are advantageously produced in the form of profiled ribs suitable for engaging without friction, respectively in circular grooves formed at the periphery of the adjustment member.
Avantageusement, chaque nervure profilée comprend une queue propre à s'engager sans frottement dans une gorge circulaire de l'organe de réglage et deux lèvres recourbées propres à venir en contact étanche avec l'organe de réglage, de part et d'autre de la gorge circulaire.Advantageously, each profiled rib comprises a tail capable of engaging without friction in a circular groove of the adjusting member and two curved lips capable of coming into tight contact with the adjusting member, on either side of the circular groove.
Le joint d' étanchéité est, de préférence, formé par enroulement d'une pièce moulée généralement plane. Il est avantageusement formé en une matière élastomère ou thermoplastique. Dans une forme de réalisation préférée de l'invention, le corps est réalisé sous la forme d'un boîtier ouvert destiné à être fermé par un couvercle qui comporte l'entrée de fluide.The seal is preferably formed by winding a generally planar molded part. It is advantageously formed from an elastomeric or thermoplastic material. In a preferred embodiment of the invention, the body is made in the form of an open housing intended to be closed by a cover which includes the fluid inlet.
Sous un autre aspect, l'invention concerne un procédé de fabrication d'une vanne de commande du type défini précédemment, lequel comprend les opérations suivantes :In another aspect, the invention relates to a method of manufacturing a control valve of the type defined above, which comprises the following operations:
1) former le joint d' étanchéité à plat par moulage, de manière à offrir deux extrémités opposées ;1) form the gasket flat by molding, so as to provide two opposite ends;
2) enrouler le joint d' étanchéité en une position choisie autour de l'organe de réglage ;2) wind the seal in a selected position around the adjusting member;
3) réunir les deux extrémités du joint ; et3) join the two ends of the joint; and
4) introduire l'organe de réglage ainsi équipé du joint d' étanchéité dans le corps.4) introduce the adjusting member thus equipped with the seal into the body.
Dans l'opération a), le joint est avantageusement réalisé par moulage d'une matière élastomère ou thermoplastique, tandis que, dans l'opération c) , les deux extrémités sont avantageusement réunies par soudage, collage, agrafage, ou maintien mécanique pendant l'opération d) .In operation a), the joint is advantageously produced by molding an elastomeric or thermoplastic material, while, in operation c), the two ends are advantageously joined together by welding, gluing, stapling, or mechanical maintenance during the 'operation d).
Ces deux extrémités constituent, de préférence, respectivement les deux moitiés d'une branche transversale qui sont réunies lors de l'opération c) .These two ends preferably constitute, respectively, the two halves of a transverse branch which are joined together during operation c).
Selon une autre caractéristique avantageuse, le corps est réalisé sous la forme d'un boîtier ouvert destiné à être fermé par un couvercle, et 'le procédé comprend une opération supplémentaire e) consistant à assembler le couvercle sur le corps pour enfermer l'organe de réglage et le joint d' étanchéité .According to another advantageous characteristic, the body is produced in the form of an open box intended to be closed by a cover, and the method comprises an additional operation e) consisting in assembling the cover on the body to enclose the adjustment and seal.
Dans la description qui suit, faite seulement à titre d'exemple, on se réfère aux dessins annexés, sur lesquels : - la Figure 1 est une vue en perspective éclatée d' une vanne de commande équipée d'un joint d' étanchéité selon l'invention ; la Figure 2 est une vue en perspective du joint d' étanchéité ;In the description which follows, given solely by way of example, reference is made to the appended drawings, in which: - Figure 1 is an exploded perspective view of a control valve equipped with a seal according to the invention; Figure 2 is a perspective view of the seal;
- la Figure 3 est une vue en perspective du corps de vanne, avec arrachement partiel, logeant l'organe de réglage et le joint d' étanchéité ;- Figure 3 is a perspective view of the valve body, partially broken away, housing the adjusting member and the seal;
- la Figure 4 est une vue en perspective du joint d' étanchéité moulé à plat ;- Figure 4 is a perspective view of the flat molded seal;
- la Figure 5 montre la mise en place du joint d' étanchéité autour de l'organe de réglage ;- Figure 5 shows the establishment of the seal around the adjustment member;
- la Figure 6 est une vue en perspective de l'organe de réglage équipé du joint d' étanchéité ;- Figure 6 is a perspective view of the adjustment member equipped with the seal;
- la Figure 7 est une vue en coupe longitudinale de l'organe de réglage équipé du joint d' étanchéité ;- Figure 7 is a longitudinal sectional view of the adjustment member equipped with the seal;
- la Figure 8 est une vue en coupe transversale de l'organe de réglage équipé du joint d' étanchéité ;- Figure 8 is a cross-sectional view of the adjustment member equipped with the seal;
- la Figure 9 est un détail à échelle agrandie montrant une branche transversale du joint formée par la réunion des deux extrémités du joint d' étanchéité ;- Figure 9 is a detail on an enlarged scale showing a transverse branch of the seal formed by the union of the two ends of the seal;
- la -Figure 10 est une vue en coupe à échelle agrandie montrant une autre branche transversale du joint d' étanchéité ; la Figure 11 est une vue en coupe à échelle agrandie montrant une branche circulaire coopérant avec une gorge circulaire de l'organe de réglage et la Figure 12 est une vue en perspective illustrant une variante de réalisation du joint.- The -Figure 10 is a sectional view on an enlarged scale showing another transverse branch of the seal; Figure 11 is a sectional view on an enlarged scale showing a circular branch cooperating with a circular groove of the adjusting member and Figure 12 is a perspective view illustrating an alternative embodiment of the seal.
La vanne de commande 10 représentée à la Figure 1 comprend un corps 12 de forme générale cylindrique, limité par une paroi de fond 14 et une paroi latérale cylindrique 16 d'axe XX. Dans la paroi latérale cylindrique 16, débouchent trois tubulures de sortie de fluide 18, 20 et 22. Ces trois tubulures de sortie débouchent à des hauteurs axiales et en des positions angulaires choisies par rapport à l'axe XX. Dans l'exemple, les tubulures 18, 20 et 22 débouchent radialement dans la paroi 16 et elles ont des diamètres différents.The control valve 10 shown in Figure 1 comprises a body 12 of generally cylindrical shape, limited by a bottom wall 14 and a cylindrical side wall 16 of axis XX. In the cylindrical side wall 16, three fluid outlet pipes 18, 20 and 22 open. These three outlet pipes lead to axial heights and to angular positions chosen with respect to the axis XX. In the example, the pipes 18, 20 and 22 open radially into the wall 16 and they have different diameters.
Le corps de vanne 12 comporte une face ouverte circulaire 24 destinée à être fermée par un couvercle 26 qui est muni d'une tubulure 28 d'entrée de fluide, dirigée dans la direction de l'axe XX. La paroi latérale 16 du corps de vanne présente une surface cylindrique interne 30 délimitant un logement 32 pour un organe de réglage 34. Cet organe de réglage 34 pourra définir une cavité intérieure 36 propre à être alimentée en fluide par la tubulure d'entrée 28 de la vanne.The valve body 12 has a circular open face 24 intended to be closed by a cover 26 which is provided with a fluid inlet pipe 28, directed in the direction of the axis XX. The side wall 16 of the valve body has an internal cylindrical surface 30 delimiting a housing 32 for an adjustment member 34. This adjustment member 34 may define an interior cavity 36 suitable for being supplied with fluid by the inlet pipe 28 of valve.
L'organe de réglage 34 est alors réalisé sous la forme d'un cylindre creux propre à tourner autour de l'axe de rotation XX. Il présente une surface cylindrique intermédiaire 38 munie de deux ouvertures de passage 40 et encadrée par deux autres surfaces cylindriques 42 et 44 situées en extrémité. La surface cylindrique 42 est munie de trois ouvertures de passage 46, tandis que la surface cylindrique 44 est munie d'une ouverture de passage 48. L'organe de réglage 34 est propre à prendre différentes positions angulaires choisies, sous l'action d'un organe de commande (non représenté) , pour contrôler la distribution du fluide au travers des sorties 18, 20 et 22.The adjusting member 34 is then produced in the form of a hollow cylinder capable of rotating around the axis of rotation XX. It has an intermediate cylindrical surface 38 provided with two passage openings 40 and framed by two other cylindrical surfaces 42 and 44 situated at the end. The cylindrical surface 42 is provided with three passage openings 46, while the cylindrical surface 44 is provided with a passage opening 48. The adjusting member 34 is able to assume different angular positions chosen, under the action of a control member (not shown), for controlling the distribution of the fluid through the outlets 18, 20 and 22.
Selon un autre mode de réalisation, non représenté, il pourra également s'agir d'un cylindre tronqué, tel que décrit dans la demande de brevet français FR 01/09.218.According to another embodiment, not shown, it may also be a truncated cylinder, as described in the French patent application FR 01 / 09.218.
L' étanchéité entre l'organe de réglage 34 et la surface intérieure 30 de la paroi latérale 16 est assurée par un joint d' étanchéité 50 qui sera décrit en détail plus loin.The seal between the adjusting member 34 and the inner surface 30 of the side wall 16 is ensured by a seal 50 which will be described in detail below.
Le couvercle 26 est muni de trois pattes 52 destinées à être traversées par des vis (non représentées) coopérant avec des bossages correspondants 54 que présente le corps de vanne.The cover 26 is provided with three tabs 52 intended to be crossed by screws (not shown) cooperating with corresponding bosses 54 presented by the valve body.
Un joint d' étanchéité 56 de forme annulaire est disposé entre la face ouverte 24 du corps 12 et le couvercle 26. Par ailleurs, l'organe de réglage 34 se termine par un embout 58 entouré par un joint d' étanchéité 60 et propre à traverser une ouverture (non visible sur la Figure 1) que comporte le fond 14 du corps 12. De la sorte, l'organe de réglage 34 peut être entraîné en rotation par un organe de commande approprié situé à l'extérieur.A seal 56 of annular shape is disposed between the open face 24 of the body 12 and the cover 26. Furthermore, the adjustment member 34 ends in a nozzle 58 surrounded by a seal 60 and suitable for pass through an opening (not visible in Figure 1) that includes the bottom 14 of the body 12. In this way, the adjusting member 34 can be rotated by a suitable control member located outside.
Le joint d' étanchéité 50, que l'on voit aussi sur les Figures 2 et 3, est un joint monobloc compartimenté permettant d'assurer l' étanchéité entre les différentes voies (l'entrée de fluide 28 et les trois sorties de fluide 18, 20 et 22) de la vanne 10. Ce joint comporte, dans l'exemple, quatre branches circulaires espacées 62ι à 624 propres à former étanchéité entre la paroi latérale 16 du corps et l'organe de réglage 34. Ces branches circulaires sont réunies entre elles, dans l'exemple, par sept branches transversales 64ι à 647 qui s'étendent parallèlement entre elles et parallèlement à l'axe XX. Outre leur fonction d'espacement, les branches transversales 64ι à 647 servent au maintien du joint d' étanchéité, en position fixe, à l'intérieur de la paroi latérale 16. Les branches circulaires 62ι à 624 sont espacées de telle manière qu'elles viennent se situer de part et d'autre des régions cylindriques 38, 42 et 44 de l'organe de réglage 34. Ainsi, les branches 62χ et 622 encadrent la surface cylindrique d'extrémité 44, les branches 622 et 623 encadrent la surface cylindrique intermédiaire 38 et les branches 623 et 624 encadrent la surface cylindrique d'extrémité 42.The seal 50, which can also be seen in FIGS. 2 and 3, is a compartmentalized one-piece seal making it possible to seal between the different paths (the fluid inlet 28 and the three fluid outlets 18 , 20 and 22) of the valve 10. This seal comprises, in the example, four circular branches spaced apart 62ι to 62 4 capable of forming a seal between the side wall 16 of the body and the adjusting member 34. These circular branches are joined together, in the example, by seven transverse branches 64ι to 64 7 which extend parallel to each other and parallel to the axis XX. In addition to their spacing function, the transverse branches 64ι to 64 7 are used to maintain the seal, in a fixed position, inside the side wall 16. The circular branches 62ι to 62 4 are spaced such that 'they come to be on either side of the cylindrical regions 38, 42 and 44 of the adjusting member 34. Thus, the branches 62χ and 62 2 frame the cylindrical end surface 44, the branches 62 2 and 62 3 frame the intermediate cylindrical surface 38 and the branches 62 3 and 62 4 frame the cylindrical end surface 42.
Le joint d' étanchéité 50 est avantageusement formé à partir d'une pièce moulée à plat, comme montré à la Figure 4. Cette pièce moulée, avantageusement en une matière du type élastomère, comprend des branches longitudinales 62ι à 624 destinées à former ultérieurement, après enroulement, les branches circulaires correspondantes. Ces branches longitudinales sont réunies entre elles par les branches transversales 64χ à 647, qui s'étendent parallèlement entre elles.The seal 50 is advantageously formed from a flat molded part, as shown in Figure 4. This molded part, advantageously made of a material of the elastomer type, comprises longitudinal branches 62ι to 62 4 intended to subsequently form, after winding, the corresponding circular branches. These longitudinal branches are joined together by transverse branches 64χ to 64 7, which extend parallel to one another.
L'organe de réglage 34 comporte à sa périphérie des gorges circulaires 66ι à 66 (Figure 5) destinées à recevoir respectivement, les branches 62ι à 62 . L'extrémité de la branche transversale 647 est appliquée contre une des génératrices de l'organe de réglage, puis l'ensemble du joint est enroulé autour de celui-ci, en sorte que les branches 62x à 624 viennent s'engager respectivement dans les gorges 66ι à 664, ce qui permet d'obtenir un joint enroulé comme montré à la Figure 6. Les extrémités du joint, constituées par les branches transversales 64ι et 647, sont réunies entre elles par un procédé approprié, tel que soudage, collage, agrafage ou maintien mécanique.The adjusting member 34 comprises at its periphery circular grooves 66ι to 66 (Figure 5) intended to receive respectively, the branches 62ι to 62. The end of the transverse branch 64 7 is applied against one of the generatrices of the adjusting member, then the entire seal is wound around it, so that the branches 62 x to 62 4 come to engage respectively in the grooves 66ι to 66 4 , which makes it possible to obtain a wound seal as shown in Figure 6. The ends of the seal, formed by the transverse branches 64ι and 64 7 , are joined together by an appropriate process, such as welding, gluing, stapling or mechanical maintenance.
Comme on le voit sur les Figures 7 à 11, les branches circulaires 62 et les branches transversales 64 sont réalisées sous la forme de nervures profilées de forme appropriée.As seen in Figures 7 to 11, the circular branches 62 and the transverse branches 64 are made in the form of profiled ribs of suitable shape.
Les branches transversales 642 à 64ç ont la structure représentée aux Figures 8 et 10. Elles s'étendent parallèlement entre elles et sont formées en saillie vers l'extérieur des branches circulaires. Chaque nervure profilée comprend une queue 68 propre à s'engager dans une rainure longitudinale 70 de la paroi latérale du corps de vanne (Figure 1) et deux lèvres 72 (Figure 10) propres à venir en contact étanche avec l'organe de réglage. Les branches d'extrémité 64χ et 647 constituent les deux moitiés d'une nervure du type précité (Figure 9) . Après assemblage entre elles, elles forment un profil complet analogue à celui d'une nervure 64 telle que représentée à la Figure 10. Les branches circulaires 62ι à 624 du joint sont réalisées sous la forme de nervures profilées propres à s'engager sans frottement, respectivement dans les gorges 66x à 664 précitées. Chacune des nervures comprend une queue 74 propre à s'engager sans frottement dans une gorge 66 correspondante (Figure 1) . Pour cela, la queue 74 possède une largeur inférieure à celle de la gorge 66 correspondante. Cette queue 74 se raccorde à deux lèvres 76 qui sont recourbées de manière à venir en contact étanche avec l'organe de réglage 34, de part et d'autre de la gorge circulaire 66 (Figure 11) .The transverse branches 64 2 to 64c have the structure shown in Figures 8 and 10. They extend parallel to each other and are formed projecting outwards from the circular branches. Each profiled rib comprises a tail 68 adapted to engage in a longitudinal groove 70 of the side wall of the valve body (Figure 1) and two lips 72 (Figure 10) capable of coming into tight contact with the adjusting member. The end limbs 64 64χ and 7 are two halves of a rib of the aforementioned type (Figure 9). After assembly between them, they form a complete profile similar to that of a rib 64 as shown in FIG. 10. The circular branches 62ι to 62 4 of the joint are produced in the form of profiled ribs suitable for engaging without friction, respectively in the grooves 66 x to 66 4 mentioned above. Each of the ribs comprises a tail 74 suitable for engaging without friction in a corresponding groove 66 (Figure 1). For this, the tail 74 has a width less than that of the corresponding groove 66. This tail 74 is connected to two lips 76 which are curved so as to come into sealed contact with the adjustment member 34, on either side of the circular groove 66 (Figure 11).
Comme illustré à la figure 12, le joint pourra également présenté une ou des branches annulaires 100, en forme de bagues d' étanchéité, situées au niveau d'au moins l'un des orifices par lesquels les conduits de sortie du fluide 18,20,22 débouchent dans le corps 12 de la vanne. La ou lesdites branches entourent le ou lesdits orifices, par exemple en épousant l'intérieur de la paroi latérale 16 du corps 12 au voisinage de ceux-ci. Cette ou ces branche annulaires 100 sont reliées aux branches circulaires 62 et/ou aux branches transversales 64 et sont réalisées de façon monobloc avec lesdites branches. Elles permettent de renforcer l' étanchéité sans nuire ou peu au niveau de friction entre le coprs 12 et l'organe de réglage 34.As illustrated in Figure 12, the seal may also have one or more annular branches 100, in the form of sealing rings, located at at least one of the orifices through which the fluid outlet conduits 18,20 , 22 open into the body 12 of the valve. The one or more branches surround the one or more orifices, for example by matching the inside of the side wall 16 of the body 12 in the vicinity thereof. This or these annular branches 100 are connected to the circular branches 62 and / or to the transverse branches 64 and are produced in a single piece with the said branches. They make it possible to reinforce the seal without harming or little the level of friction between the body 12 and the adjusting member 34.
Ainsi, pour fabriquer la vanne de commande, on forme d'abord le joint d' étanchéité à plat par moulage, de manière à présenter deux extrémités opposées (branches 64χ et 647) comme montré à la Figure 4. Ensuite, on enroule le joint d' étanchéité en une position choisie autour de l'organe de réglage 34, en sorte que les branches 62ι à 624 viennent s'engager, respectivement, dans les gorges 66ι à 664 (Figure 5) . Après enroulement complet, on réunit les deux branches d'extrémité 64χ et 6 jr ce qui permet d'obtenir un organe de réglage pré-équipé du joint (Figure 6). Ensuite, on introduit axialement l'ensemble à l'intérieur du logement 32 du corps 12, de sorte que les branches 64χ à 6 η viennent s'engager dans les rainures 70 du corps de vanne. Il suffit ensuite de fermer le corps de vanne par mise en place du couvercle 26. On obtient ainsi une vanne qui permet de contrôler de façon précise la distribution du fluide entre les sorties 18, 20 et 22, tout en assurant une parfaite étanchéité entre le corps de vanne et l'organe de réglage.Thus, to manufacture the control valve, is formed first the seal flat molding, so as to have two opposite ends (64χ branches 7 and 64) as shown in Figure 4. Next, winding the seal in a selected position around the adjusting member 34, so that the branches 62ι to 62 4 engage, respectively, in the grooves 66ι to 66 4 (Figure 5). After complete winding, the two end branches 64χ and 6 j r are combined, which makes it possible to obtain an adjustment member pre-equipped with the seal (Figure 6). Then, the assembly is introduced axially inside the housing 32 of the body 12, so that the branches 64χ to 6 η come to engage in the grooves 70 of the valve body. Then simply close the valve body by fitting the cover 26. This gives a valve which allows precise control of the distribution of the fluid between the outlets 18, 20 and 22, while ensuring a perfect seal between the valve body and adjuster.
Compte tenu de la structure particulière de ce joint, il est possible de compenser les variations dimensionnelles dues à des différences de dilatation et à des tolérances de fabrication.Given the particular structure of this joint, it is possible to compensate for dimensional variations due to differences in expansion and to manufacturing tolerances.
La vanne de commande de l'invention peut être utilisée dans différents circuits de circulation de fluide.The inventive control valve can be used in different fluid circulation circuits.
Elle trouve une utilisation particulière dans 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.It finds particular use in a cooling circuit of a thermal engine of a motor vehicle, which is traversed by a cooling fluid under the action of a circulation pump.
L'entrée de fluide 28 de la vanne est alors avantageusement reliée à une arrivée de fluide de refroidissement en provenance du moteur. Les trois sorties de fluide 18, 20 et 22 sont, alors reliées respectivement à une première branche du circuit qui contient un radiateur de refroidissement, à une deuxième branche du circuit qui constitue une dérivation du radiateur de refroidissement et à une troisième branche du circuit qui contient un aérotherme pour le chauffage de l'habitacle.The fluid inlet 28 of the valve is then advantageously connected to an inlet for coolant coming from the engine. The three fluid outlets 18, 20 and 22 are then respectively connected to a first branch of the circuit which contains a cooling radiator, to a second branch of the circuit which constitutes a bypass of the cooling radiator and to a third branch of the circuit which contains an air heater for heating the passenger compartment.
Bien entendu, l'invention n'est pas limitée à la forme de réalisation décrite précédemment à titre d'exemple et s'étend à d'autres variantes.Of course, the invention is not limited to the embodiment described above by way of example and extends to other variants.
En particulier, elle n'est pas limitée à une vanne à trois sorties de fluide et peut être utilisée pour des vannes à deux, voire quatre sorties de fluide. De même, bien que l'invention ait été décrite en référence particulière à un joint d' étanchéité réalisé par enroulement, il est envisageable de réaliser un joint monobloc en forme qui est ensuite enfilé en force autour de l'organe de réglage, avant mise en place de l'ensemble à l'intérieur du corps de vanne. In particular, it is not limited to a valve with three fluid outlets and can be used for valves with two or even four fluid outlets. Likewise, although the invention has been described with particular reference to a seal produced by winding, it is conceivable to produce a one-piece shaped seal which is then forcibly threaded around the adjusting member, before putting on in place of the assembly inside the valve body.

Claims

Revendications claims
1. Vanne de commande pour un circuit de circulation de fluide, comprenant un corps (12) de forme générale cylindrique, muni d'une entrée de fluide (28) débouchant axialement et d'au moins deux sorties de fluide (18, 20, 22) débouchant dans une paroi latérale cylindrique (16) , le corps délimitant un logement cylindrique (32) pour un organe de réglage (34) réalisé sous la forme d'un cylindre propre à tourner autour d'un axe de rotation (XX) et à prendre- différentes positions angulaires pour contrôler la distribution du fluide,1. Control valve for a fluid circulation circuit, comprising a body (12) of generally cylindrical shape, provided with a fluid inlet (28) opening axially and with at least two fluid outlets (18, 20, 22) opening into a cylindrical side wall (16), the body delimiting a cylindrical housing (32) for an adjustment member (34) produced in the form of a cylinder capable of turning around an axis of rotation (XX) and to take different angular positions to control the distribution of the fluid,
caractérisé en ce qu'il comprend un joint d' étanchéité (50) réalisé monobloc et ayant des branches circulaires (62) espacées et des branches transversales (64) reliant entre elles les branches circulaires (62) , lesdites branches circulaires et/ou transversales étant propres à former étanchéité entre la paroi latérale (16) du corps (12) et l'organe de réglage (34).characterized in that it comprises a seal (50) made in one piece and having spaced circular branches (62) and transverse branches (64) connecting the circular branches (62) to each other, said circular and / or transverse branches being suitable for forming a seal between the side wall (16) of the body (12) and the adjustment member (34).
2. Vanne de commande selon la revendication 1, caractérisée en ce que le joint d' étanchéité (50) est maintenu fixe à l'intérieur de la paroi latérale (16) du corps (12).2. Control valve according to claim 1, characterized in that the seal (50) is held fixed inside the side wall (16) of the body (12).
3. Vanne de commande selon l'une des revendications 1 et 2, caractérisée en ce que les branches transversales ( 64 ) du joint d' étanchéité (50) sont réalisées sous la forme de nervures profilées s' étendant parallèlement entre elles et formées en saillie vers l'extérieur des branches circulaires et propres à s'engager respectivement dans des rainures longitudinales (70) formées dans la paroi latérale (16) du corps (12) .3. Control valve according to one of claims 1 and 2, characterized in that the transverse branches (64) of the seal (50) are made in the form of profiled ribs extending parallel to each other and formed in projecting outwards from the circular branches and suitable for engaging respectively in longitudinal grooves (70) formed in the side wall (16) of the body (12).
4. Vanne de commande selon la revendication 3, caractérisée en ce que chaque nervure profilée (64) comprend une queue (68) propre à s'engager dans une rainure longitudinale (70) de la paroi latérale du corps et deux lèvres (72) propres à venir en contact étanche avec l'organe de réglage (34). 4. Control valve according to claim 3, characterized in that each profiled rib (64) comprises a tail (68) adapted to engage in a longitudinal groove (70) of the side wall of the body and two lips (72) suitable for coming into tight contact with the adjusting member (34).
5. Vanne de commande selon l'une des revendications 1 à 4, caractérisée en ce que les branches circulaires (62) du joint d' étanchéité (50) sont situées de part et d'autre de régions cylindriques (38, 42, 44) de l'organe de réglage, dans lesquelles sont formées les ouvertures de passage (40, 46, 48) .5. Control valve according to one of claims 1 to 4, characterized in that the circular branches (62) of the seal (50) are located on either side of cylindrical regions (38, 42, 44 ) of the adjusting member, in which the passage openings (40, 46, 48) are formed.
6. Vanne de commande selon l'une des revendications 1 à 5, caractérisée en ce que les branches circulaires (62) du joint d' étanchéité (50) sont réalisées sous la forme de nervures profilées propres à s'engager sans frottement respectivement dans des gorges circulaires (66) formées à la périphérie de l'organe de réglage (34).6. Control valve according to one of claims 1 to 5, characterized in that the circular branches (62) of the seal (50) are made in the form of profiled ribs suitable for engaging without friction respectively in circular grooves (66) formed at the periphery of the adjustment member (34).
7. Vanne de commande selon la revendication 6, caractérisée en ce que chaque nervure profilée (62) comprend une queue (74) propre à s'engager sans frottement dans une gorge circulaire (66) de l'organe de réglage et deux lèvres recourbées (76) propres à venir en contact étanche avec l'organe de réglage7. Control valve according to claim 6, characterized in that each profiled rib (62) comprises a tail (74) suitable for engaging without friction in a circular groove (66) of the adjustment member and two curved lips (76) suitable for coming into tight contact with the adjusting member
(34) de part et d'autre de la gorge circulaire (66).(34) on either side of the circular groove (66).
8. Vanne de commande selon l'une des revendications 1 à 7, caractérisée en ce que le joint d' étanchéité (50) est formé par enroulement d'une pièce moulée généralement plane.8. Control valve according to one of claims 1 to 7, characterized in that the seal (50) is formed by winding a generally planar molded part.
9. Vanne de commande selon l'une des revendications 1 à 8, caractérisée en ce que le joint d' étanchéité (50) est formé en une matière élastomère ou thermoplastique.9. Control valve according to one of claims 1 to 8, characterized in that the seal (50) is formed of an elastomeric or thermoplastic material.
10. Vanne de commande selon l'une des revendications 1 à 9, caractérisée en ce que le corps (12) est réalisé sous la forme d'un boîtier ouvert destiné à être fermé par un couvercle (26) qui comporte l'entrée de fluide (28).10. Control valve according to one of claims 1 to 9, characterized in that the body (12) is made in the form of an open housing intended to be closed by a cover (26) which comprises the inlet of fluid (28).
11. Procédé de fabrication d'une vanne de commande selon l'une des revendications 1 à 10, caractérisé en ce qu'il comprend les opérations suivantes :11. Method of manufacturing a control valve according to one of claims 1 to 10, characterized in that it comprises the following operations:
5) former le joint d' étanchéité (50) à plat par moulage, de manière à offrir deux extrémités opposées (641, 647) ;5) forming the seal (50) flat by molding, so as to provide two opposite ends (641, 647);
6) enrouler le joint d' étanchéité (50) en une position choisie autour de l'organe de réglage (34) ;6) wind the seal (50) in a selected position around the adjusting member (34);
7) réunir les deux extrémités du joint ; et7) join the two ends of the joint; and
8) introduire l'organe de réglage (34) ainsi équipé du joint d' étanchéité (50) dans le corps (12) .8) introduce the adjusting member (34) thus equipped with the seal (50) into the body (12).
12. Procédé selon la revendication 11, caractérisé en ce que, dans l'opération a), le joint est réalisé par moulage d'une matière élastomère ou thermoplastique et que, dans l'opération c) , les deux extrémités du joint sont réunies par soudage, collage, agrafage ou maintien mécanique pendant l'opération d) .12. Method according to claim 11, characterized in that, in operation a), the seal is produced by molding an elastomeric or thermoplastic material and that, in operation c), the two ends of the seal are joined by welding, gluing, stapling or mechanical support during the operation d).
13. Procédé selon l'une des revendications 11 et 12, caractérisé en ce que les deux extrémités du joint constituent respectivement les deux moitiés (64χ, 647) d'une branche transversale qui sont réunies lors de l'opération c) .13. Method according to one of claims 11 and 12, characterized in that the two ends of the joint respectively constitute the two halves (64χ, 64 7 ) of a transverse branch which are joined during operation c).
14. Procédé selon l'une des revendications 11 à 13, caractérisé en ce que le corps (12) est réalisé sous la forme d'un boîtier ouvert destiné à être fermé par un couvercle (26) , et en ce qu'il est prévu une opération supplémentaire e) consistant à assembler le couvercle sur le corps pour enfermer l'organe de réglage (34) et le joint d'étanchéité (50). 14. Method according to one of claims 11 to 13, characterized in that the body (12) is produced in the form of an open box intended to be closed by a cover (26), and in that it is provided for an additional operation e) consisting of assembling the cover on the body to enclose the adjusting member (34) and the seal (50).
PCT/FR2002/002434 2001-07-11 2002-07-10 Improved sealed control valve and production method thereof WO2003006859A1 (en)

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US9500883B2 (en) 1999-07-02 2016-11-22 E-Vision Smart Optics, Inc. Electro-active opthalmic lens having an optical power blending region
EP1663610A4 (en) * 2003-09-16 2008-09-17 Formax Inc Tube valve arrangement for a patty-forming machine
EP1663610A2 (en) * 2003-09-16 2006-06-07 Formax, Inc. Tube valve arrangement for a patty-forming machine
FR2979406A1 (en) * 2011-08-31 2013-03-01 Peugeot Citroen Automobiles Sa Sealing device for use in clutch drive of gear box in car for sealing hydraulic channels crossing between hydraulic piston body and support plate, during passage of hydraulic fluid, has connecting element connecting joints with each other
CN104471296A (en) * 2012-05-31 2015-03-25 株式会社三国 Rotary valve
CN104471296B (en) * 2012-05-31 2016-10-26 株式会社三国 Rotary valve
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FR3033783A1 (en) * 2015-03-18 2016-09-23 Cryl DRAIN CAP WITH ROTATING VALVE
CN108779865A (en) * 2016-03-16 2018-11-09 日立汽车***株式会社 Flow control valve and cooling system
WO2017199654A1 (en) * 2016-05-19 2017-11-23 株式会社デンソー Flow passage switching valve
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CN108119672A (en) * 2016-11-29 2018-06-05 杭州三花研究院有限公司 Volume control device
CN108119672B (en) * 2016-11-29 2020-05-19 杭州三花研究院有限公司 Flow rate control device
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