WO2023223522A1 - Dispositif de soupape et procédé de production de dispositif de soupape - Google Patents

Dispositif de soupape et procédé de production de dispositif de soupape Download PDF

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Publication number
WO2023223522A1
WO2023223522A1 PCT/JP2022/020902 JP2022020902W WO2023223522A1 WO 2023223522 A1 WO2023223522 A1 WO 2023223522A1 JP 2022020902 W JP2022020902 W JP 2022020902W WO 2023223522 A1 WO2023223522 A1 WO 2023223522A1
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WO
WIPO (PCT)
Prior art keywords
shaft
rotor
valve
stator
valve device
Prior art date
Application number
PCT/JP2022/020902
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English (en)
Japanese (ja)
Inventor
孝治 弓達
拓朗 頭井
暁 長谷川
Original Assignee
三菱電機株式会社
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 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to JP2024521502A priority Critical patent/JPWO2023223522A1/ja
Priority to PCT/JP2022/020902 priority patent/WO2023223522A1/fr
Publication of WO2023223522A1 publication Critical patent/WO2023223522A1/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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor

Definitions

  • the present disclosure relates to a valve device and a method for manufacturing the valve device.
  • Patent Document 1 discloses a valve device.
  • the valve device disclosed in Patent Document 1 includes a spiral spring as one urging means for urging the valve in the valve-closing direction.
  • the valve device disclosed in Patent Document 1 employs a screw structure as a structure for converting rotation of a rotor into axial movement of a motor shaft.
  • a female thread is formed on the rotor
  • a male thread is formed on the motor shaft, and these threads are connected to each other.
  • the present disclosure has been made to solve the above-mentioned problems, and an object of the present disclosure is to provide a valve device that can adjust the torque of a spiral spring while the axial position of the shaft is fixed. .
  • a valve device includes a rotor that is rotatably supported inside a stator, a shaft that is supported in a center hole of the rotor so as to be able to reciprocate in the axial direction, and that moves in the axial direction as the rotor rotates.
  • a valve is installed at the tip of the shaft and opens and closes a flow path formed in the valve housing. The inner peripheral end is assembled to the rotor, while the outer peripheral end is assembled to the stator, and the rotor is connected to the rotor in a direction corresponding to the opening direction of the valve.
  • a spiral spring that biases in the opposite direction to the rotation direction, a plate that is provided between the stator and the valve housing and has a rotation restriction hole that restricts the rotation of the shaft that passes through it, and when the shaft is pulled into the rotor side.
  • the stopper portion is provided with a stopper portion that restricts movement of the shaft toward the rotor by coming into contact with the shaft.
  • the torque of the spiral spring can be adjusted while the axial position of the shaft is fixed.
  • the present disclosure can suppress variations in the torque of the spiral spring and stabilize the performance of the valve device.
  • FIG. 1 is a longitudinal cross-sectional view of a valve device according to a first embodiment.
  • FIG. 2 is a sectional view taken along the line II-II in FIG. 1;
  • FIG. 2 is a sectional view taken along the line III-III in FIG. 1;
  • 1 is a longitudinal cross-sectional view showing a method for manufacturing a valve device according to a first embodiment;
  • FIG. 5 is a sectional view taken along the line VV in FIG. 4.
  • FIG. FIG. 5 is a longitudinal cross-sectional view following FIG. 4 and showing the method for manufacturing the valve device.
  • FIG. 7 is a sectional view taken along the line VII-VII in FIG. 6;
  • 3 is a flowchart showing a method for manufacturing a valve device according to Embodiment 1.
  • FIG. 1 is a longitudinal cross-sectional view of a valve device according to a first embodiment.
  • FIG. 2 is a sectional view taken along the line II-II in FIG. 1;
  • Embodiment 1 A valve device according to Embodiment 1 will be described using FIGS. 1 to 8.
  • FIG. 1 is a longitudinal sectional view of a valve device according to a first embodiment.
  • FIG. 2 is a sectional view taken along the line II-II in FIG. 1.
  • FIG. 3 is a sectional view taken along the line III--III in FIG. 1.
  • FIG. 1 shows an example in which the valve device according to the first embodiment is applied to an EGR valve device of an exhaust gas recirculation (hereinafter referred to as EGR) system mounted on a vehicle. . Further, FIG. 1 shows the valve device in a fully closed state.
  • EGR exhaust gas recirculation
  • the EGR system aims to reduce the harmful substances contained in the exhaust gas emitted from the combustion chamber of a vehicle engine.
  • An exhaust gas recirculation passage (hereinafter referred to as an EGR passage) is provided for recirculating (refluxing) exhaust gas from the engine to the intake passage.
  • the EGR system includes an EGR valve device in the middle of the EGR passage in order to control the flow rate of EGR gas.
  • the valve device includes a motor 10, a valve housing 20, a plate 30, and a spiral spring 40.
  • the motor 10 includes a stator 11, a rotor 12, a shaft 13, a valve 14, and a bearing 15.
  • This motor 10 allows a shaft 13 to reciprocate in its axial direction by rotating a rotor 12 with respect to a stator 11.
  • the motor 10 employs a screw structure as a structure for converting the rotation of the rotor 12 into axial movement of the shaft 13. Details of the screw structure will be described later.
  • the stator 11 is provided inside a motor housing (not shown) that forms the outer shell of the motor 10. This stator 11 rotatably supports a rotor 12 via a bearing 15. Further, as shown in FIGS. 2 and 3, the stator 11 has a screw hole 11a, a screw hole 11b, a housing portion 11c, and an outer hook portion 11d. The screw holes 11a, the screw holes 11b, and the storage portion 11c open on the lower surface of the stator 11.
  • the screw holes 11a are holes used when attaching the lower surface of the stator 11 to the upper surface of the valve housing 20.
  • the stator 11 is attached to the valve housing 20 by fastening screws (not shown) passing through the screw holes 11a into screw holes (not shown) opening in the upper surface of the valve housing 20.
  • the screw hole 11b is a hole used when attaching a plate 30, which will be described later, to the lower surface of the stator 11. The details of this screw hole 11b will be described later together with the plate 30.
  • the storage portion 11c is capable of storing a spiral spring 40, which will be described later.
  • the storage portion 11c is a substantially circular recess that opens on the lower surface of the stator 11.
  • the outer hook portion 11d is formed on the outer periphery of the storage portion 11c. Details of the storage portion 11c and the outer hook portion 11d will be described later together with the spiral spring 40.
  • the rotor 12 is arranged inside the stator 11. As shown in FIGS. 1 and 3, the rotor 12 has a stepped center hole 12A, a fitting portion 12d, and an inner hook portion 12e.
  • the stepped central hole 12A is a hole that is thinner on the upper end side than on the lower end side.
  • the stepped center hole 12A is formed in the center of the rotor 12, and opens to the lower end surface of the rotor 12 via a fitting portion 12d.
  • 12 A of such stepped center holes have the small diameter hole part 12a, the large diameter hole part 12b, and the stopper part 12c.
  • the small diameter hole portion 12a constitutes the upper part of the stepped center hole 12A.
  • the large-diameter hole portion 12b constitutes the lower part of the stepped center hole 12A, and is open to the lower end surface of the rotor 12.
  • the diameter of the large diameter hole 12b is larger than the diameter of the small diameter hole 12a.
  • a female thread is formed on the inner peripheral surface of the small diameter hole 12a.
  • a step surface connecting the small diameter hole portion 12a and the large diameter hole portion 12b constitutes a stopper portion 12c.
  • the fitting portion 12d is formed in a cylindrical shape and opens at the lower end surface of the rotor 12.
  • the stepped center hole 12A and the fitting portion 12d are arranged coaxially.
  • the diameter of the fitting portion 12d is larger than the diameter of the small diameter hole 12a and the diameter of the large diameter hole 12b. Further, the fitting portion 12d is arranged inside the storage portion 11c of the stator 11.
  • the inner hook portion 12e is formed on the fitting portion 12d.
  • the inner hook portion 12e is, for example, a cutout portion formed by cutting out a portion of the vertical wall of the fitting portion 12d.
  • the upper end side of the shaft 13 is supported in the stepped center hole 12A of the rotor 12 and the plate 30 so as to be able to reciprocate in the axial direction thereof.
  • the lower end side of the shaft 13 is supported in a valve housing 20, which will be described later, so as to be able to reciprocate in the axial direction thereof.
  • the shaft 13 has a threaded shaft portion 13a, a D-shaped shaft portion 13b, and a circular shaft portion 13c.
  • the screw shaft portion 13a, the D-shaped shaft portion 13b, and the circular shaft portion 13c are formed in this order from the upper end (base end) to the lower end (tip) of the shaft 13.
  • the screw shaft portion 13a can be inserted into the small diameter hole portion 12a.
  • a male thread is formed on the outer peripheral surface of this screw shaft portion 13a. That is, the female thread of the small diameter hole portion 12a and the male thread of the screw shaft portion 13a have the above-mentioned thread structure and can be coupled to each other.
  • the D-shaped shaft portion 13b has a D-shaped cross section (axial cross section). This D-shaped shaft portion 13b can be inserted into the circular large diameter hole 12b.
  • a certain amount of gap S is formed between the upper end surface of the D-shaped shaft portion 13b and the stopper portion 12c.
  • the D-shaped shaft portion 13b does not close to the stopper portion 12c. It never comes into contact with. Further, when assembling the valve device, the upper end surface of the D-shaped shaft portion 13b can come into contact with the stopper portion 12c. When the upper end surface of the D-shaped shaft portion 13b comes into contact with the stopper portion 12c, further upward movement (pulling toward the rotor side) is restricted.
  • the circular shaft portion 13c has a circular cross section (axial cross section). This circular shaft portion 13c is arranged inside the valve housing 20.
  • a valve 14 is provided at the lower end of the circular shaft portion 13c, in other words, at the tip of the shaft 13. This valve 14 is a poppet type valve and has a circular shape.
  • the valve housing 20 is connected to the lower part of the motor 10 via a plate 30.
  • This valve housing 20 has a flow path 20a and a through hole 20b formed therein.
  • the flow path 20a forms a part of the EGR path.
  • EGR gas which is a fluid, flows through the flow path 20a.
  • Arrow G in FIG. 1 indicates the flow of EGR gas.
  • the through hole 20b is formed to vertically penetrate the valve housing 20.
  • a circular shaft portion 13c of the shaft 13 is supported through the through hole 20b.
  • valve housing 20 includes a valve seat 21, a filter member 22, a bearing 23, and a seal member 24.
  • An annular valve seat 21 is provided in the flow path 20a.
  • the valve 14 is removably attached to the opening edge of the valve seat 21.
  • the valve 14 is seated on the valve seat 21 as the shaft 13 moves upward. Further, the valve 14 is removed from the valve seat 21 by the shaft 13 moving downward.
  • the valve 14 controls the flow rate of the EGR gas flowing through the flow path 20a by adjusting its opening relative to the valve seat 21.
  • the filter member 22, the bearing 23, and the seal member 24 are provided in the through hole 20b.
  • the filter member 22 and the seal member 24 are formed into a cylindrical shape.
  • the circular shaft portion 13c of the shaft 13 is supported by the through hole 20b of the valve housing 20 via the filter member 22, the bearing 23, and the seal member 24.
  • the bearing 23 supports the circular shaft portion 13c so that it can reciprocate in its axial direction.
  • the filter member 22 scrapes off deposits from the outer peripheral surface of the circular shaft portion 13c by reciprocating the circular shaft portion 13c in the axial direction.
  • the seal member 24 seals between the outer peripheral surface of the circular shaft portion 13c and the inner peripheral surface of the through hole 20b.
  • the plate 30 is provided between the lower surface of the motor 10 and the upper surface of the valve housing 20.
  • This plate 30 is formed into a substantially circular flat plate shape. Further, the plate 30 has a rotation regulating hole 31 and a long hole 32.
  • the rotation restriction hole 31 is arranged at the center of the plate 30.
  • the rotation regulating hole 31 is formed to protrude upward from the upper surface of the plate 30. Therefore, the rotation regulating hole 31 can be fitted into the fitting portion 12d of the rotor 12. Further, the rotation regulating hole 31 has a D-shape. A D-shaped shaft portion 13b of the shaft 13 is supported through the rotation regulating hole 31. The rotation of the shaft 13 is restricted by the D-shaped shaft portion 13b passing through the rotation restriction hole 31.
  • the cross section of the D-shaped shaft portion 13b and the rotation regulating hole 31 are in the shape of the letter D, they are not limited to this shape, and may be in the shape of a cross or width across flats. good.
  • the elongated hole 32 is arranged at the outer circumference of the plate 30 so as to face the screw hole 11b of the stator 11. Further, the elongated hole 32 is formed in an arc shape with the rotation regulating hole 31 as the center. This elongated hole 32 is a screw hole used when attaching the plate 30 to the lower surface of the stator 11. By forming the elongated hole 32 in an arc shape, the plate 30 can be attached to the stator 11 at an arbitrary rotation angle. At this time, when one screw 51 is passed through one elongated hole 32, any one of the plurality of screw holes 11b is used for this elongated hole 32.
  • the plate 30 is attached to the lower surface of the stator 11 so as to close the storage portion 11c by fastening the screws 51 passing through the long holes 32 into the screw holes 11b of the stator 11. Note that, as shown in FIG. 2, three elongated holes 32 are formed in the plate 30, but it is sufficient that at least one elongated hole 32 is formed. Further, the length of the elongated hole 32 can be adjusted as appropriate.
  • the spiral spring 40 is stored in the storage portion 11c of the stator 11. At this time, the spiral spring 40 is arranged around the fitting part 12d arranged inside the storage part 11c. An inner peripheral end 41 of the spiral spring 40 is assembled to the inner hook portion 12e of the rotor 12. On the other hand, the outer peripheral end 42 of the spiral spring 40 is assembled to the outer hook portion 11d of the stator 11. Therefore, the spiral spring 40 always urges the rotor 12 with respect to the stator 11 in the rotational direction corresponding to the closing direction of the valve 14. For example, as shown in FIG. 3, the rotation direction F of the rotor 12 corresponding to the valve opening direction is clockwise when viewed from the valve housing side.
  • the valve device In the valve device, it is necessary to prevent the valve 14 from separating from the valve seat 21 and becoming open when, for example, the motor 10 is powered off or malfunctions. Therefore, the valve device includes the spiral spring 40 and uses the rotor 12 and the plate 30 to constantly bias the valve 14 in the closing direction.
  • the shaft 13 is moved by the biasing force of the spiral spring 40 as the rotor 12 rotates in one direction (for example, clockwise when viewed from the valve housing side). resist and move downward.
  • the valve 14 separates from the valve seat 21 and opens the flow path 20a. Therefore, the exhaust passage and the intake passage communicate with each other via the EGR passage including the flow path 20a. As a result, EGR gas flows back from the exhaust passage to the intake passage. At this time, the flow rate of the EGR gas is controlled according to the opening degree of the valve 14 with respect to the valve seat 21.
  • the shaft 13 is rotated by the biasing force of the spiral spring 40 as the rotor 12 rotates in the other direction (for example, counterclockwise when viewed from the valve housing side). Move upward while receiving the pressure.
  • the valve 14 seats on the valve seat 21 and closes the flow path 20a. Therefore, the valve 14 blocks the exhaust passage and the intake passage. As a result, EGR gas no longer flows back from the exhaust passage to the intake passage. At this time, even when the valve 14 is fully closed, the gap S is maintained. That is, the D-shaped shaft portion 13b of the shaft 13 does not come into contact with the stopper portion 12c.
  • FIG. 1 shows the fully closed state of the valve 14 in the valve device
  • the valve 14 shown by the two-dot chain line in FIG. 1 shows the fully open state.
  • FIG. 4 is a longitudinal cross-sectional view showing the method for manufacturing the valve device according to the first embodiment.
  • FIG. 5 is a sectional view taken along the line VV in FIG. 4.
  • FIG. 6 is a longitudinal sectional view following FIG. 4 and showing the method for manufacturing the valve device.
  • FIG. 7 is a sectional view taken along the line VII-VII in FIG. 6.
  • FIG. 8 is a flowchart showing a method for manufacturing a valve device according to the first embodiment.
  • step ST11 the method for manufacturing a valve device includes inserting the shaft 13 into the stepped center hole 12A of the rotor 12 and abutting the stopper portion 12c, and then inserting the inner peripheral end 41 of the spiral spring 40 into the rotor. 12 to the inner hook portion 12e.
  • step ST12 the method for manufacturing a valve device inserts the shaft 13 into the rotation restriction hole 31 of the plate 30.
  • step ST13 the method for manufacturing a valve device rotates the rotor 12 in a rotation direction F corresponding to the opening direction of the valve 14, and assembles the outer peripheral end 42 of the spiral spring 40 to the outer hook portion 11d of the stator 11. .
  • step ST14 the method for manufacturing a valve device rotates the rotor 12, shaft 13, and plate 30 together in the rotation direction F corresponding to the opening direction of the valve 14 until the spiral spring 40 has a predetermined torque.
  • step ST15 the method for manufacturing a valve device fixes the valve housing 20, the plate 30, and the stator 11. Then, the method for manufacturing the valve device ends.
  • the shaft 13 is inserted into the stepped center hole 12A of the rotor 12.
  • the D-shaped shaft portion 13b of the shaft 13 comes into contact with the stopper portion 12c of the stepped center hole 12A. Therefore, the axial position of the shaft 13 when the valve 14 is in the fully closed state is set. Further, the rotor 12 and shaft 13 can rotate together. Furthermore, the rotation angle relationship between the rotation angle of the inner hook portion 12e and the rotation angle of the D-shaped shaft portion 13b is maintained.
  • the spiral spring 40 is stored in the storage portion 11c of the stator 11. At this time, the inner peripheral end 41 of the spiral spring 40 is assembled to the inner hook portion 12e of the rotor 12.
  • the plate 30 is fitted onto the rotor 12 and shaft 13. Specifically, the D-shaped shaft portion 13b of the shaft 13 is inserted into the rotation restriction hole 31 of the plate 30. Further, the D-shaped shaft portion 13b of the shaft 13 is inserted into the fitting portion 12d of the rotor 12.
  • the rotor 12 is rotated via the shaft 13 and the plate 30 in a rotation direction F corresponding to the opening direction of the valve 14.
  • the spiral spring 40 typically expands radially outward. Therefore, the outer circumferential end 42 of the spiral spring 40 slides on the inner circumferential wall surface of the storage portion 11c as the rotor 12 rotates, and eventually is naturally caught on the outer hook portion 11d (see FIG. 3).
  • the rotor 12, shaft 13, and plate 30 are opened from the state in which the inner peripheral end 41 is assembled to the inner hook part 12e and the outer peripheral end 42 is assembled to the outer hook part 11d. They are rotated together in a rotation direction F corresponding to the valve direction.
  • the rotor 12, shaft 13, and plate 30 are rotated together until the spiral spring 40 has a predetermined torque.
  • the plate 30 is attached to the lower surface of the stator 11 using the screws 51. That is, the plate 30 is attached to the lower surface of the stator 11 so as to close the storage portion 11c by fastening the screws 51 passing through the long holes 32 into the screw holes 11b of the stator 11.
  • the elongated hole 32 is formed in an arc shape, so that the plate 30 can be attached to the stator 11 at an arbitrary rotation angle.
  • the predetermined torque that the spiral spring 40 has is a torque design value of the spiral spring 40 that corresponds to the axial position of the shaft 13 when the valve 14 is in a fully closed state.
  • This torque design value is determined based on the EGR gas pressure, the valve seat diameter, the output for opening and closing the valve 14 in the motor 10 (output for reciprocating the shaft 13), etc. This is set taking into consideration the responsiveness of the operation. That is, the torque design value becomes a different value depending on the vehicle in which the valve device is mounted.
  • valve seat 21 is attached to the flow path 20a of the valve housing 20. Further, the filter member 22, the bearing 23, and the seal member 24 are attached to the through hole 20b of the valve housing 20.
  • the circular shaft portion 13c of the shaft 13 is inserted into the through hole 20b and supported by the through hole 20b via the filter member 22, bearing 23, and seal member 24. Then, the valve 14 is attached to the tip of the circular shaft portion 13c.
  • the valve device includes a rotor 12 that is rotatably supported inside the stator 11 and a stepped center hole 12A of the rotor 12 that is supported so as to be able to reciprocate in the axial direction.
  • a shaft 13 that moves in the axial direction in accordance with A spiral spring 40 whose end 42 is assembled to the stator 11 and urges the rotor 12 in a direction opposite to the rotational direction F corresponding to the opening direction of the valve 14 is provided between the stator 11 and the valve housing 20.
  • the plate 30 has a rotation regulating hole 31 that regulates the rotation of the shaft 13 that passes through the plate 30, and when the shaft 13 is pulled toward the rotor, the plate 30 comes into contact with the shaft 13 and prevents the shaft 13 from moving toward the rotor. It is provided with a stopper part 12c for regulating. Therefore, the valve device can adjust the torque of the spiral spring 40 while the axial position of the shaft 13 is fixed. As a result, the valve device can suppress variations in the torque of the spiral spring 40, and stabilize performance.
  • the stopper portion 12c is provided in the stepped center hole 12A of the rotor 12. Therefore, the valve device can easily restrict movement of the shaft 13 toward the rotor.
  • the valve device includes a long hole 32 formed in an arc shape in the plate 30, through which a screw 51 fastened to a screw hole 11b formed in the stator 11 can pass. Therefore, in the valve device, the plate 30 can be attached to the stator 11 at any rotation angle.
  • valve device when the shaft 13 moves to open and close the valve 14, a gap S is formed between the shaft 13 and the stopper portion 12c. Therefore, the valve device can prohibit the shaft 13 from coming into contact with the stopper portion 12c before the valve 14 is seated on the valve seat 21 when the valve 14 moves toward the fully closed state. As a result, the valve device can prevent damage to the shaft 13 and the stopper portion 12c due to their contact.
  • the shaft 13 is inserted into the stepped center hole 12A of the rotor 12, and with the shaft 13 in contact with the stopper portion 12c, the inner peripheral end 41 of the spiral spring 40 is Assemble the rotor 12, insert the shaft 13 into the rotation restriction hole 31 of the plate 30, rotate the rotor 12, and assemble the outer peripheral end 42 of the spiral spring 40 to the stator 11.
  • the valve housing 20, the plate 30, and the stator 11 are fixed by rotating together in the rotation direction F corresponding to the opening direction of the valve 14 until the spiral spring 40 has a predetermined torque. Therefore, in the method for manufacturing the valve device, the torque of the spiral spring 40 can be adjusted while the axial position of the shaft 13 is fixed, so that the workability of assembling the valve device can be improved.
  • any component of the embodiments can be modified or any component of the embodiments can be omitted.
  • the valve device By including the stopper portion, the valve device according to the present disclosure can adjust the torque of the spiral spring while the axial position of the shaft is fixed, and is suitable for use in valve devices and the like.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electrically Driven Valve-Operating Means (AREA)

Abstract

Un dispositif de soupape comprend : un rotor (12) qui est supporté de manière rotative par un stator (11) ; un arbre (13) qui est supporté de façon à pouvoir effectuer un mouvement de va-et-vient dans la direction axiale dans un trou central étagé (12A) du rotor (12), et qui se déplace dans la direction axiale conjointement avec la rotation du rotor (12) ; une soupape (14) qui est disposée sur une extrémité de pointe de l'arbre (13) et qui ouvre et ferme un trajet d'écoulement (20a) ; un ressort en spirale (40), dont l'extrémité périphérique interne (41) est assemblée au rotor (12), dont l'extrémité périphérique externe (42) est assemblée au stator (11), et qui sollicite le rotor (12) dans une direction opposée à une direction de rotation (F) correspondant à la direction d'ouverture de soupape de la soupape (14) ; une plaque (30) qui est disposée entre le stator (11) et un boîtier de soupape (20), et qui a un trou de limitation de rotation (31) qui limite la rotation de l'arbre (13) le traversant ; et une partie d'arrêt (12c) qui limite le mouvement de l'arbre (13) vers le côté rotor en entrant en contact avec l'arbre (13), lorsque l'arbre (13) est tiré vers le côté rotor.
PCT/JP2022/020902 2022-05-20 2022-05-20 Dispositif de soupape et procédé de production de dispositif de soupape WO2023223522A1 (fr)

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JP2024521502A JPWO2023223522A1 (fr) 2022-05-20 2022-05-20
PCT/JP2022/020902 WO2023223522A1 (fr) 2022-05-20 2022-05-20 Dispositif de soupape et procédé de production de dispositif de soupape

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2022/020902 WO2023223522A1 (fr) 2022-05-20 2022-05-20 Dispositif de soupape et procédé de production de dispositif de soupape

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WO2023223522A1 true WO2023223522A1 (fr) 2023-11-23

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PCT/JP2022/020902 WO2023223522A1 (fr) 2022-05-20 2022-05-20 Dispositif de soupape et procédé de production de dispositif de soupape

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS624976A (ja) * 1985-06-28 1987-01-10 エレクトリツク　パワ−　リサ−チ　インスチテユ−ト　インコ−ポレ−テツド マイクロプロセサに基づくモータ動作弁用の制御及び診断装置
JP2000234564A (ja) * 1999-02-10 2000-08-29 Unisia Jecs Corp Ｅｇｒバルブの制御装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS624976A (ja) * 1985-06-28 1987-01-10 エレクトリツク　パワ−　リサ−チ　インスチテユ−ト　インコ−ポレ−テツド マイクロプロセサに基づくモータ動作弁用の制御及び診断装置
JP2000234564A (ja) * 1999-02-10 2000-08-29 Unisia Jecs Corp Ｅｇｒバルブの制御装置

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