WO2023139882A1 - Soupape de commutation de passage d'écoulement et procédé d'assemblage de soupape de commutation de passage d'écoulement - Google Patents

Soupape de commutation de passage d'écoulement et procédé d'assemblage de soupape de commutation de passage d'écoulement Download PDF

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Publication number
WO2023139882A1
WO2023139882A1 PCT/JP2022/040541 JP2022040541W WO2023139882A1 WO 2023139882 A1 WO2023139882 A1 WO 2023139882A1 JP 2022040541 W JP2022040541 W JP 2022040541W WO 2023139882 A1 WO2023139882 A1 WO 2023139882A1
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WO
WIPO (PCT)
Prior art keywords
valve body
valve
side plates
pair
spherical surface
Prior art date
Application number
PCT/JP2022/040541
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English (en)
Japanese (ja)
Inventor
大介 近藤
Original Assignee
株式会社不二工機
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Filing date
Publication date
Application filed by 株式会社不二工機 filed Critical 株式会社不二工機
Publication of WO2023139882A1 publication Critical patent/WO2023139882A1/fr

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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
    • F16K11/087—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with spherical plug
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/06—Construction of housing; Use of materials therefor of taps or cocks

Definitions

  • the present disclosure relates to a channel switching valve and a method for assembling the channel switching valve.
  • the switching valve described in Japanese Patent Application Laid-Open No. 2016-138626 includes a valve case in which a plurality of opening holes leading from the valve chamber to the outside are formed, a ball-shaped valve body having a flow path selectively connecting to the opening holes and accommodated in the valve chamber, a plurality of valve covers having an outflow inlet communicating with the opening holes and attached to the valve case, a drive source for rotating the valve body, a valve shaft, and a valve body disposed between the valve body and the valve cover when the valve body rotates. and a sliding member that makes the plurality of open holes non-communicating with each other, and an elastic member that presses the sliding member against the valve body.
  • a flow path switching valve includes a valve body in which a valve chamber is formed, a spherical valve body arranged in the valve chamber, and an annular sealing portion arranged in the valve chamber.
  • the valve body is provided with a plurality of flow passage ports through which fluid passes
  • the annular sealing portion is provided with an O-ring as an elastic seal, and is arranged so as to surround the flow passage ports.
  • the annular sealing portion is in contact with the outer surface of the valve body and seals between the outer surface of the valve body and the flow channel port.
  • valve body is divided into a valve case and a plurality of valve covers.
  • the valve body is arranged in the valve case, and the sealing part is brought into contact with the valve body by inserting the sealing part through the channel port of the valve case and then attaching the valve cover to the valve case.
  • the performance of the valve depends on the compression rate of the O-ring in the sealing part, and with such a configuration, it was difficult to manage the compression rate of the O-ring due to relative positional variations between the valve case and the valve cover in the valve body.
  • valve body valve and the sealing portion in the valve chamber while adopting a structure in which the valve body and the valve case are not separated.
  • a unit in which the sealing portion and the valve are combined in advance must be arranged in the valve chamber. This made the work difficult.
  • An object of the present disclosure is to make it possible to easily arrange a valve body and a sealing portion while ensuring valve performance in a flow path switching valve having a valve body in which four flow path ports are formed in the same plane.
  • a flow path switching valve includes a valve body in which a valve chamber is formed, four side plates forming the valve chamber are respectively formed with flow passage openings through which a fluid passes, two sets of the two side plates facing each other are provided, and a portion facing the bottom plate forming the valve chamber is an open port; a valve body rotatably arranged in the valve chamber and a cavity formed inside; and a sealing portion formed in an annular shape and disposed so as to surround the flow path port and sealing between the spherical surface and the side plate by coming into contact with the spherical surface and sealing between the spherical surface and the side plate.
  • the outer dimension of the valve body in a direction different from the direction of the width across flats, which is the shortest distance between the flat portions, is greater than the width across flats and equal to or less than the diameter of the spherical surface, and the width across flats is smaller than the distance between the opposing sealing portions and equal to the outer size of the valve body in the direction of the width across flats.
  • the width across flats of the pair of flat portions of the valve body is smaller than the distance between the opposing sealing portions and is equal to the outer dimension of the valve body in the direction of the width across flats. Therefore, when the valve body is inserted into the valve chamber and the flat portions face the side plates, a gap larger than the thickness of the sealing portion is formed between the pair of flat portions and the side plates. Therefore, the sealing portion can be easily inserted and arranged in this gap.
  • the sealing portion comes into contact with the spherical surface of the valve body in use, and the valve performance is exhibited.
  • valve body and the sealing portion can be arranged from the open port of the valve body to the valve chamber, relative positional variation between the side plate of the valve body and the sealing portion is suppressed compared to the structure in which the valve body is divided into the valve case and the valve cover. Therefore, valve performance is ensured.
  • a tool for rotating the valve body can be engaged with at least one of the flow holes that faces the side plates that do not face the pair of flat portions when the pair of flat portions are opposed to the side plates of the valve body that face each other.
  • a tool for rotating the valve body can be engaged with the communication hole. Therefore, when assembling the flow path switching valve, after the valve body and the sealing portion are arranged in the valve chamber, a tool is inserted from the flow path port of the valve body to engage with the flow hole of the valve body to rotate the valve body.
  • a method for assembling a flow path switching valve includes: a valve body in which a valve chamber is formed; four side plates forming the valve chamber are formed with flow passage openings through which a fluid passes; two sets of two side plates facing each other are provided; and a portion facing a bottom plate forming the valve chamber is an open port; and a sealing portion formed in an annular shape and disposed so as to surround the flow path port and sealing between the spherical surface and the side plate by coming into contact with the spherical surface and sealing between the spherical surface and the side plate.
  • a method for assembling a flow path switching valve wherein a pair of flat portions are formed, the outer dimension of the valve body in a direction different from the direction of the width across flats, which is the shortest distance between the flat portions, is larger than the width across flats and equal to or less than the diameter of the spherical surface, and the width across flats is smaller than the separation distance between the opposing sealing portions and equal to the outer size of the valve body in the direction of the width across flats, wherein the valve body is disposed in the valve chamber through the opening, and the pair of flat portions are connected to the valve body.
  • the width across flats of the pair of flat portions of the valve body is smaller than the distance between the opposing sealing portions and is equal to the outer dimension of the valve body in the direction of the width across flats. Therefore, when the valve body is inserted into the valve chamber in the valve body placement step and arranged so that the flat portions face the side plates, a gap larger than the thickness of the sealing portion is formed between the pair of flat portions and the first pair of side plates. In the step of arranging the first set of sealing portions, the sealing portions can be easily inserted and placed in this gap. When the valve body is rotated in the first rotation step, a gap larger than the thickness of the sealing portion is formed between the pair of flat portions and the second set of side plates. In the step of arranging the second set of sealing portions, the sealing portions can be easily inserted and placed in this gap.
  • valve performance is exhibited by rotating the valve body so that all the sealing portions are in contact with the valve body and the flat portion and the bottom plate face each other.
  • a fourth aspect is the method for assembling a flow path switching valve according to the third aspect, wherein when the pair of flat portions are opposed to the mutually opposing side plates of the valve body, at least one communication hole facing the side plate that does not face the pair of flat portions is configured to be able to engage a tool for rotating the valve body, and in the second rotation step, the tool is engaged with the communication hole of the valve body through the flow channel port to rotate the valve body.
  • a tool can be engaged with at least some of the flow holes, so that in the second rotation step, the tool can be inserted from the flow path port of the valve body and engaged with the flow hole of the valve body to rotate the valve body.
  • all the sealing portions are brought into contact with the valve body, and the flat portion and the bottom plate can be brought into a state of facing each other, so that the flow path switching valve can be put into a usable state.
  • a flow path switching valve having a valve body in which four flow path ports are formed in the same plane, it is possible to easily arrange the valve body and the sealing portion while ensuring valve performance.
  • FIG. 2 is a partially broken perspective view showing a state in which a valve body and one seat member are arranged in a valve chamber in the flow path switching valve according to the present embodiment
  • FIG. 4 is a plan view showing a state in which the valve body and two seat members are arranged in the valve chamber
  • FIG. 4 is a perspective view showing a state immediately before two seat members are further arranged in the valve chamber in which the valve body and the two seat members are arranged
  • FIG. 4 is a plan view showing the state of the valve chamber in FIG. 3
  • FIG. 4 is a partially broken perspective view showing a state in which a valve body and four seat members are arranged in a valve chamber
  • FIG. 6 is a plan view showing the state of the valve chamber in FIG. 5;
  • FIG. 5 is a plan view showing the state of the valve chamber in FIG. 5;
  • FIG. 6 is a partially broken perspective view showing a state in which the flat portion having the insertion hole faces the opening by rotating the valve body from the state of FIG. 5 ;
  • FIG. 8 is a plan view showing the state of the valve chamber in FIG. 7; 8 is a cross-sectional view taken along line 9-9 in FIG. 7; FIG. 8 is a cross-sectional view taken along line 10-10 in FIG. 7;
  • FIG. 8 is a partially broken perspective view showing a state in which the valve body is rotated from the state in FIG. 7; It is an expansion perspective view which shows a valve body. It is an expansion perspective view which shows a valve body. It is a six-sided view showing a valve body. It is a perspective view showing the whole flow-path switching valve concerning this embodiment.
  • the arrow H shown in each figure indicates the up-down direction
  • the arrow W indicates the left-right direction
  • the arrow D indicates the front-back direction.
  • the vertical direction, the width direction, and the front-rear direction are orthogonal to each other.
  • the vertical direction, the width direction, and the front-rear direction in the present disclosure may differ from the direction in which the flow path switching valve is used.
  • the channel switching valve 10 is a rotary four-way valve that switches the channel of liquid, which is an example of fluid flowing in the engine room of an automobile, in multiple directions.
  • This channel switching valve 10 includes a valve body 14 , a valve body 16 and a sealing portion 18 . 15, the flow path switching valve 10 has a driving portion 86. As shown in FIG.
  • valve body The valve main body 14 is integrally formed using, for example, a resin material.
  • a valve chamber 12 is formed inside a base member 20 of the valve main body 14 .
  • the four side plates 12A, 12B, 12C, and 12D forming the valve chamber 12 are formed with channel ports 31, 32, 33, and 34, respectively, through which the fluid passes, and two sets of two side plates facing each other are provided.
  • the left and right side plates 12A and 12C are set as a first set
  • the front and rear side plates 12B and 12D are set as a second set.
  • the portion of the base member 20 facing the bottom plate 12E forming the valve chamber 12 is an open port 12U.
  • the bottom plate 12E is partially spherical in order to avoid interference with a valve body 16 having a spherical surface 16S, which will be described later. Part of the bottom plate 12E does not have to be spherical as long as there is no interference.
  • ports 31A, 32A, 33A and 34A as pipe joints communicating with the flow passage ports 31, 32, 33 and 34 are integrally provided on the outer surface of the base member 20 of the valve body 14.
  • the side plates 12A, 12B, 12C, and 12D on the side of the valve chamber 12 are each provided with a gap 24 for inserting the sealing portion 18 from the opening 12U.
  • the length of the gap 24 in plan view is set slightly larger than the outer diameter of the sealing portion 18 .
  • the base member 20 is provided with a regulating portion 26 that defines the length of the gap 24 .
  • the restricting portion 26 allows the sealing portion 38 inserted into the gap 24 to be stably positioned.
  • the valve body 16 is a ball-shaped member made of, for example, synthetic resin, has a spherical surface 16S with a constant center and diameter on its outer surface, and is rotatably arranged in the valve chamber 12.
  • a cavity 36 is formed inside the valve body 16, and communication holes 16A, 16B, and 16C are formed on the outer surface of the valve body 16, through which the fluid flowing into or out of the cavity 36 passes.
  • the sealing portion 18 is formed in an annular shape, is disposed so as to surround the flow path ports 31, 32, 33, and 34, and is a member that contacts the spherical surface 16S to seal between the spherical surface 16S and the side plate.
  • the sheet member 40 is made of synthetic resin, for example, and is formed in an annular shape with openings corresponding to the flow passage ports 31, 32, 33, and 34, respectively.
  • the seat member 40 is formed with an inclined seal surface 40A.
  • the inclined seal surface 40A is, for example, a conical inner surface, and is a portion that contacts the spherical surface 16S of the valve body 16 .
  • the valve body 16 is sandwiched between four seat members 40, and is arranged so as to be rotatably slidable while being in contact with each inclined seal surface 40A.
  • the O-ring 42 is partially inserted into the recess 40B of the seat member 40. As shown in FIG. The O-ring 42 contacts the side plates 12A, 12B, 12C and 12D of the valve main body 14 and is elastically deformed while the seat member 40 is arranged in the valve chamber 12 .
  • the O-ring 42 seals the space between the seat member 40 and the valve body 14, for example, airtightly and watertightly.
  • the inclined seal surface 40A of the seat member 40 contacts the spherical surface 16S of the valve body 16
  • the seat member 40 is pushed toward the side plates 12A, 12B, 12C, and 12D, and the O-ring 42 is compressed.
  • the contact pressure between the spherical surface 16S of the valve body 16 and the inclined seal surface 40A of the seat member 40 increases.
  • PPS polyphenylene sulfide
  • PTFE fluororesin
  • EPDM ethylene propylene diene rubber
  • valve body 16 and the sealing portion 18 can be arranged in the valve chamber 12 from the opening 12U of the valve main body 14. As shown in FIG.
  • a pair of flat portions 16U and 16L parallel to each other are formed on a portion of the outer surface of the valve body 16 that faces the bottom plate 12E and a portion of the spherical surface 16S that is located on the opposite side of the portion in the diametrical direction (see also FIG. 14).
  • the flat portion 16L is a portion that becomes the lower surface when the flow path switching valve 10 is used.
  • the flat portion 16U is a portion that becomes the upper surface when the flow path switching valve 10 is used.
  • the outer dimension of the valve body 16 in a direction different from the direction of the width across flats T is greater than the width across flats T and equal to or less than the diameter of the spherical surface 16S.
  • the width across flats T is smaller than the separation distance K between the opposing sealing portions 18 and is equal to the outer dimension of the valve body 16 in the direction of the width across flats.
  • the maximum outer dimension of the valve body 16 is equal to the diameter of the spherical surface 16S, and the outer dimension of the non-spherical surface 16S is smaller than the diameter of the spherical surface 16S.
  • the outer dimension of the valve body 16 is the smallest when measured in the direction of the width across flats T.
  • Planar portions 16P are formed in portions of flow holes 16A and 16C, which will be described later.
  • the two plane portions 16P are parallel to each other, but the width across flats L, which is the shortest distance between them, is larger than the width across flats T of the plane portions 16U and 16L and smaller than the diameter of the spherical surface 16S.
  • three communication holes 16A, 16B, 16C are formed in a direction orthogonal to the direction of the width across flats T of the plane portions 16U, 16L.
  • the circulation holes 16A and 16B are arranged in directions orthogonal to each other when viewed from the direction of the width across flats T.
  • the communication holes 16A and 16C are located on opposite sides of the valve body 16 in the diametrical direction.
  • a tool 50 for rotating the valve body 16 can be engaged with at least one flow hole, two flow holes 16A and 16C in the present embodiment, which are opposed to the side plates 12B and 12D that do not face the pair of flat portions 16U and 16L when the pair of flat portions 16U and 16L are opposed to the side plates 12A and 12C of the valve body 14, for example, the side plates 12A and 12C (FIGS. 12 and 13).
  • the flow holes 16A and 16C are configured with polygons such as hexagons.
  • the shape of the communication holes 16A and 16C is not limited to polygonal, and any shape that can transmit the rotational torque of the tool 50 may be used.
  • the circulation holes 16A and 16C may be circular, and a portion for engaging the tool 50 with the hollow portion 36 of the valve body 16 may be provided.
  • a rectangular insertion hole 16H is formed in a portion of the valve body 16 that faces upward during use.
  • This insertion hole 16H is a portion into which the fitting portion at the lower end of the valve shaft is inserted, and has a role of transmitting the rotational force from the valve shaft to the valve body 16 (not shown). Note that the insertion hole 16H does not have to penetrate from the outer surface to the hollow portion 36 . That is, the insertion hole 16H may be a recess.
  • a hexagonal concave portion 16D for engaging the tool 30 (Fig. 3) is provided on the inner wall of the hollow portion 36 located at the back of the communication hole 16B.
  • the tool 30 is used when rotating the valve body 16 in the first rotating step S3, which will be described later (Fig. 3).
  • the portion where the recess 16D is located does not have a through portion that communicates with the cavity 36 and the outer surface, and the outer surface is a spherical surface 16S that is wider than the other portions (FIG. 13).
  • a cover 80 is attached to the opening 12U of the valve chamber 12.
  • a valve shaft (not shown) passes through the cover 80 and is rotatably supported.
  • a driving portion 86 for rotating the valve shaft is arranged on the cover 80 .
  • the cover 80 is integrally formed using a resin material.
  • the cover 80 is formed using polyphenylene sulfide (PPS) as an example.
  • PPS polyphenylene sulfide
  • the cover 80 has a plate-like shape whose plate thickness direction is the vertical direction of the component, and closes the opening 12U (FIG. 7) of the valve chamber 12 in the valve main body 14 from above.
  • cover 80 is formed with a cylindrical portion 82 for attaching the drive portion 86 . Furthermore, the threaded portion of the screw 90 used to attach the driving portion 86 to the cover 80 is meshed with the inner peripheral surface of the cylindrical portion 82 . In this configuration, cover 80 closes opening 12U of valve chamber 12 in valve body 14 and is fused to valve body 14 . As a result, the opening 12U of the valve chamber 12 is closed.
  • the method for assembling the flow path switching valve is the method for assembling the flow path switching valve 10 described above, and includes a valve body arranging step S1, a sealing portion first set arranging step S2, a first rotation step S3, a sealing portion second set arranging step S4, and a second rotating step S5.
  • valve body placement step S1 in the valve body placement step S1, the valve body 16 is placed in the valve chamber 12 through the opening 12U, and the pair of flat portions 16U and 16L are made to face the first pair of side plates 12A and 12C of the valve body 14, respectively. Then, a gap 24 larger than the thickness of the sealing portion 18 is formed between the pair of flat portions 16U, 16L and the first pair of side plates 12A, 12C.
  • the first set of sealing portions 18 is inserted and disposed through the opening 12U into the gap 24 between the pair of flat portions 16U, 16L and the first set of side plates 12A, 12C. Since the width across flats T of the pair of flat portions 16U and 16L of the valve body 16 is smaller than the separation distance K between the opposing sealing portions 18 and is equal to the outer dimension of the valve body 16 in the direction of the width across flats T, the gap 24 is larger than the thickness of the sealing portion 18. Therefore, the sealing portion 18 can be easily inserted and arranged in the gap 24 . Even after the insertion, the sealing portion 18 and the pair of flat portions 16U and 16L are slightly separated. Furthermore, since the base member 20 is provided with the restricting portion 26 that determines the length of the gap 24 , the sealing portion 18 is stably positioned by the restricting portion 26 .
  • valve body 16 in the first rotation step S3, the valve body 16 is rotated 90°, for example, in the direction of arrow A from the state shown in FIG.
  • the valve body 16 can be rotated by inserting the tool 30 into the communication hole 16B of the valve body 16 through the opening 12U and engaging the recess 16D.
  • a portion of the valve body 16 comes into contact with the sealing portion 18 arranged in the first set of sealing portion arranging step S2.
  • a gap 24 larger than the thickness of the sealing portion 18 is formed between the pair of flat portions 16U and 16L and the second set of side plates 12B and 12D due to the size relationship between the width across flats T of the valve body 16 and the separation distance K between the sealing portions 18.
  • the sealing portions 18 are inserted and placed in the gaps 24 between the pair of flat portions 16U and 16L and the second set of side plates 12B and 12D through the opening 12U. Since the gap 24 is larger than the thickness of the sealing portion 18 , the second set of sealing portions 18 can be easily inserted and arranged in the gap 24 . Furthermore, since the base member 20 is provided with the restricting portion 26 that determines the length of the gap 24 , the sealing portion 18 is stably positioned by the restricting portion 26 . Thus, the arrangement of the four sealing portions 18 is completed. In this state, the sealing portion 18 and the pair of flat portions 16U and 16L are slightly separated.
  • the tool 50 can be engaged with at least some of the flow holes, for example, the flow holes 16A and 16C. Therefore, in FIG. The tool 50 may be inserted into the circulation hole 16A on the opposite side of the circulation hole 16C.
  • the cover 80 is attached to the opening 12U of the valve chamber 12 .
  • a valve shaft passes through the cover 80 and is rotatably supported.
  • a driving portion 86 for rotating the valve shaft is arranged on the cover 80 .
  • valve body 16 and the sealing portion 18 can be arranged from the opening 12U of the valve body 14 into the valve chamber 12. Therefore, relative positional variations between the side plates 12A, 12B, 12C, and 12D of the valve body 14 and the sealing portion 18 are suppressed compared to a configuration in which the valve body 14 is divided into a valve case and a valve cover. Therefore, valve performance is ensured.
  • valve body 16 When the valve body 16 has three flow holes 16A, 16B, and 16C, three of the four flow passage ports 31, 32, 33, and 34 can be communicated, and one flow passage port can be closed.
  • the flow path By rotating the valve body 16 in the direction of arrow C from the state shown in FIG. 7 to the state shown in FIG. 11, for example, the flow path can be switched.
  • the tool 50 for rotating the valve body 16 can be engaged with at least one circulation hole, for example, the circulation holes 16A and 16C. However, if the valve body 16 can be rotated by other means, the tool 50 may not be engaged with the circulation holes 16A and 16C.

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

Abstract

La présente invention aborde le problème consistant à garantir une performance de soupape et de permettre un agencement facile d'un corps de soupape et d'une partie d'étanchéité dans une soupape de commutation de passage d'écoulement ayant un corps de soupape dans lequel quatre ouvertures de passage d'écoulement sont formées dans le même plan.　Dans une soupape de commutation de passage d'écoulement (10), un corps de soupape (16) et des parties d'étanchéité (18) peuvent être agencés dans une chambre de soupape (12) à partir d'une ouverture (12U). Sur la surface externe du corps de soupape (16), une paire de sections planes (16U, 16L) sont formées de telle sorte qu'une partie (16L) qui est opposée à une plaque inférieure (12E) constituant la chambre de soupape (12) et une partie (16U) positionnée sur le côté opposé à la partie susmentionnée dans la direction de diamètre d'une surface sphérique soient parallèles l'une à l'autre. La dimension externe du corps de soupape dans une direction différente d'une direction d'une largeur à deux surfaces (T), qui est la distance minimale entre les sections planes (16U, 16L), est supérieure à la largeur à deux surfaces (T) et est inférieure ou égale au diamètre de la surface sphérique. La largeur à deux surfaces (T) est inférieure à une distance de séparation (K) entre les parties d'étanchéité opposées et égale à la dimension externe du corps de soupape dans la direction de la largeur à deux surfaces (T).
PCT/JP2022/040541 2022-01-20 2022-10-28 Soupape de commutation de passage d'écoulement et procédé d'assemblage de soupape de commutation de passage d'écoulement WO2023139882A1 (fr)

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JP2022-007452 2022-01-20
JP2022007452A JP2023106239A (ja) 2022-01-20 2022-01-20 流路切換弁、及び流路切換弁の組立方法

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WO2023139882A1 true WO2023139882A1 (fr) 2023-07-27

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PCT/JP2022/040541 WO2023139882A1 (fr) 2022-01-20 2022-10-28 Soupape de commutation de passage d'écoulement et procédé d'assemblage de soupape de commutation de passage d'écoulement

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110966434A (zh) * 2018-09-29 2020-04-07 浙江三花汽车零部件有限公司 球阀
US20200393053A1 (en) * 2019-06-12 2020-12-17 Vitesco Technologies USA, LLC Coolant flow control module

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110966434A (zh) * 2018-09-29 2020-04-07 浙江三花汽车零部件有限公司 球阀
US20200393053A1 (en) * 2019-06-12 2020-12-17 Vitesco Technologies USA, LLC Coolant flow control module

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