WO2022009283A1 - Électrovanne de purge - Google Patents

Électrovanne de purge Download PDF

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Publication number
WO2022009283A1
WO2022009283A1 PCT/JP2020/026462 JP2020026462W WO2022009283A1 WO 2022009283 A1 WO2022009283 A1 WO 2022009283A1 JP 2020026462 W JP2020026462 W JP 2020026462W WO 2022009283 A1 WO2022009283 A1 WO 2022009283A1
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WO
WIPO (PCT)
Prior art keywords
chamber
solenoid valve
purge solenoid
damper
housing
Prior art date
Application number
PCT/JP2020/026462
Other languages
English (en)
Japanese (ja)
Inventor
雅俊 上田
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 PCT/JP2020/026462 priority Critical patent/WO2022009283A1/fr
Publication of WO2022009283A1 publication Critical patent/WO2022009283A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
    • F02M25/08—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding fuel vapours drawn from engine fuel reservoir
    • 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
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • 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
    • F16K47/00—Means in valves for absorbing fluid energy
    • F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise

Definitions

  • This disclosure relates to a purge solenoid valve.
  • a duty-driven purge solenoid valve provided with a chamber chamber in the flow path on the canister side.
  • the purge solenoid valve can reduce the pulsation generated when the flow path is opened and closed. Further, it is known that it is possible to improve the reduction rate of the pulsation by increasing the capacity of the chamber chamber.
  • an inflow housing having an inflow tubular portion in which an inflow passage through which evaporative fuel flowing in from the canister side flows is formed, and a main body having a built-in solenoid coil portion and connected to the inflow housing.
  • the inflow housing has a larger passage crossing area than the inflow passage, and has a first chamber chamber provided inside the main body housing closer to the main body housing than the inflow passage, and the main body housing flows in more than the valve body.
  • a purge solenoid valve having a second chamber chamber provided inside near the housing is disclosed.
  • the purge solenoid valve disclosed in Patent Document 1 (hereinafter referred to as "conventional purge solenoid valve") increases the total capacity of the chamber chambers by providing a plurality of chamber chambers in the flow path on the canister side. ..
  • the purge solenoid valve is provided in the engine room because it is located near the engine. In recent years, as the volume of the engine room has become smaller, it has been desired to reduce the size of the purge solenoid valve.
  • the conventional purge solenoid valve has a problem that it becomes large while it is possible to improve the reduction rate of the pulsation generated when opening and closing the flow path by providing a plurality of chamber chambers.
  • This disclosure is intended to solve the above-mentioned problems and improve the reduction rate of pulsation generated when opening and closing the flow path as compared with the conventional purge solenoid valve having a chamber chamber having the same capacity. It is intended to provide a purge solenoid valve that enables it.
  • the purge solenoid valve according to this disclosure is a duty-driven purge solenoid valve, which includes a valve body that opens and closes a flow path from the canister to the engine, and a chamber chamber provided in the flow path on the canister side with respect to the valve body. , A damper that divides the chamber chamber into a flow path and an air damper chamber, and includes a damper formed of an elastic body.
  • FIG. 1 is a configuration diagram showing an example of the configuration of a main part of a purge system to which the purge solenoid valve according to the first embodiment is applied.
  • FIG. 2 is a configuration diagram showing an example of the configuration of the main part of the purge solenoid valve according to the first embodiment.
  • FIG. 3 is an explanatory diagram showing an example of the pressure pulsation in the chamber chamber of the purge solenoid valve according to the first embodiment and the pressure pulsation in the chamber chamber of the conventional purge solenoid valve.
  • 4A, 4B, and 4C are explanatory views showing another example of the shape of the damper and the air damper chamber included in the purge solenoid valve according to the first embodiment.
  • FIG. 1 is a configuration diagram showing an example of the configuration of a main part of a purge system to which the purge solenoid valve according to the first embodiment is applied.
  • FIG. 2 is a configuration diagram showing an example of the configuration of the main part of the purge solenoid valve
  • FIG. 5 is an explanatory diagram showing another example of the shape of the damper and the air damper chamber included in the purge solenoid valve according to the first embodiment.
  • 6A and 6D are explanatory views showing an example of the shapes of the damper, the column, and the air damper chamber included in the purge solenoid valve according to the first embodiment.
  • FIG. 6B is a cross-sectional view showing an example of a cross section in the XX'plane shown in FIG. 6A.
  • FIG. 6C is a cross-sectional view showing another example of the cross section in the XX'plane shown in FIG. 6A.
  • FIG. 6E is a cross-sectional view showing an example of a cross section in the XX'plane shown in FIG. 6D.
  • FIG. 6F is a cross-sectional view showing another example of the cross section in the XX'plane shown in FIG. 6D.
  • FIG. 7 is a configuration diagram showing an example of the configuration of the main part of the purge solenoid valve according to the second embodiment.
  • FIG. 8 is an exploded view showing an example of a state in which the purge solenoid valve shown in FIG. 7 is disassembled.
  • FIG. 9 is a configuration diagram showing an example of the configuration of a conventional purge solenoid valve.
  • Embodiment 1 The purge solenoid valve 100 according to the first embodiment will be described with reference to FIGS. 1 to 6.
  • FIG. 1 is a configuration diagram showing an example of the configuration of a main part of the purge system 1 to which the purge solenoid valve 100 according to the first embodiment is applied.
  • the purge system 1 includes a fuel tank 10, a canister 20, a purge solenoid valve 100, an intake manifold 30, and an engine 40.
  • the purge system 1 is for suppressing the fuel vapor evaporated in the fuel tank 10 from flowing out to the outside air through a fuel filler port (not shown) when the fuel tank 10 is refueled.
  • the canister 20 contains activated carbon that adsorbs fuel vapor.
  • the canister 20 is connected to the upper part of the fuel tank 10 via a pipe, and adsorbs the vaporized fuel vapor in the fuel tank 10.
  • the purge solenoid valve 100 is a valve included in the purge solenoid valve 100 by operating the solenoid actuator 110 included in the purge solenoid valve 100 based on a duty drive signal output by a duty drive control ECU (Electronic Control Unit) (not shown).
  • the body 140 is opened and closed.
  • the purge solenoid valve 100 is arranged between the engine 40 and the canister 20. More specifically, the purge solenoid valve 100 is arranged between the intake manifold 30 that supplies the mixed gas of fuel and air to the engine 40 and the canister 20.
  • the fuel vapor adsorbed on the canister 20 by the negative pressure of the engine 40 enters the intake manifold 30 via the flow path in the purge solenoid valve 100. Will be supplied.
  • the fuel steam supplied to the intake manifold 30 via the flow path in the purge solenoid valve 100 is supplied to the engine 40 via the intake manifold 30, and the fuel steam is fueled and consumed in the engine 40.
  • FIG. 2 is a configuration diagram showing an example of the configuration of the main part of the purge solenoid valve 100 according to the first embodiment.
  • the purge solenoid valve 100 includes a solenoid actuator 110, a housing 120, a lid 130, a valve body 140, a canister pipe 150, an intake manifold pipe 160, a chamber chamber 170, a damper 180, and an air damper chamber 171.
  • the solenoid actuator 110 opens and closes the valve body 140 in response to the duty drive signal output by the duty drive control ECU.
  • the valve body 140 opens and closes a flow path from the canister 20 to the engine 40 in the housing 120.
  • the canister pipe 150 is a pipe having one end connected to the housing 120 and the other end connected to the canister 20, and is a pipe that guides the fuel vapor adsorbed by the canister 20 into the housing 120.
  • the intake manifold pipe 160 is a pipe having one end connected to the housing 120 and the other end connected to the intake manifold 30, and is a pipe that guides the fuel vapor in the housing 120 to the intake manifold 30.
  • FIG. 2 is a cross-sectional view of the purge solenoid valve 100 when the purge solenoid valve 100 is cut on a plane including the valve shaft of the valve body 140, the pipe shaft of the canister pipe 150, and the pipe shaft of the intake manifold pipe 160. Is.
  • the housing 120 is the housing of the purge solenoid valve 100. With the valve body 140 opened, a flow path is formed to guide the fuel vapor flowing from the canister pipe 150 to the intake manifold pipe 160.
  • the lid 130 is a member that closes the opening of the housing 120. For example, by removing the lid 130 from the housing 120, work such as inspection inside the housing 120 can be easily performed.
  • the chamber chamber 170 is a space provided in the flow path on the canister 20 side with respect to the valve body 140.
  • the chamber chamber 170 is formed by a housing 120, a lid 130, and a valve body 140.
  • the purge solenoid valve 100 can suppress the generation of pulsation by providing the chamber chamber 170 in the flow path on the canister 20 side with respect to the valve body 140.
  • the purge solenoid valve 100 includes an air damper chamber 171 in the chamber chamber 170.
  • the damper 180 is a member that partitions the chamber chamber 170 into a flow path and an air damper chamber 171. That is, the purge solenoid valve 100 includes an air damper chamber 171 partitioned by a damper 180 in the chamber chamber 170.
  • the damper 180 is formed of an elastic elastic body.
  • the purge solenoid valve 100 includes a chamber chamber 170 having the same capacity because the air damper chamber 171 absorbs the pressure change of the gas in the chamber chamber 170, which is a factor of pulsation. Compared with the conventional purge solenoid valve, the reduction rate of pulsation generated when opening and closing the flow path can be improved.
  • the damper 180 is made of a rubber material.
  • FIG. 3 is an explanatory diagram showing an example of a pressure change in the chamber chamber 170 of the purge solenoid valve 100 according to the first embodiment and a pressure change in the chamber chamber of the conventional purge solenoid valve.
  • the purge solenoid valve 100 can suppress a pressure change in the chamber chamber 170 as compared with a conventional purge solenoid valve having the same capacity in the chamber chamber. As a result, the purge solenoid valve 100 can reduce pulsation as compared with the conventional purge solenoid valve.
  • the air damper chamber 171 is a space in the chamber chamber 170 surrounded by a part of the portion forming the chamber chamber 170 and the damper 180. More specifically, for example, as shown in FIG. 2, the air damper chamber 171 is a space in the chamber chamber 170 surrounded by the lid 130 forming the chamber chamber 170 and the damper 180.
  • the damper 180 is fixed to the lid 130.
  • the purge solenoid valve 100 shown in FIG. 2 has a structure in which the inside of the chamber chamber 170 is partitioned into a flow path and an air damper chamber 171 by attaching a lid 130 to which a damper 180 is fixed to a housing 120.
  • the shapes of the damper 180 and the air damper chamber 171 shown in FIG. 2 are examples, and the shapes of the damper 180 and the air damper chamber 171 are not limited to the shapes shown in FIG. 4A, 4B, and 4C are explanatory views showing another example of the shape of the damper 180 and the air damper chamber 171 included in the purge solenoid valve 100 according to the first embodiment. 4A, 4B, and 4C are cross-sectional views cut along the same plane as in FIG. 2. The damper 180 shown in FIGS. 4A, 4B, and 4C is fixed to the lid 130.
  • the purge solenoid valve 100 has a structure in which the inside of the chamber chamber 170 is partitioned into a flow path and an air damper chamber 171 by attaching a lid 130 to which the damper 180 shown in FIG. 4A, FIG. 4B, or FIG. 4C is fixed to the housing 120. Will be.
  • FIG. 5 is an explanatory diagram showing another example of the shape of the damper 180 and the air damper chamber 171 included in the purge solenoid valve 100 according to the first embodiment.
  • FIG. 5 is a cross-sectional view cut along the same plane as in FIG.
  • the damper 180 shown in FIG. 5 is fixed by being sandwiched between the lid 130 and the housing 120.
  • the purge solenoid valve 100 shown in FIG. 5 has a structure in which the inside of the chamber chamber 170 is partitioned into a flow path and an air damper chamber 171 by attaching the lid 130 with the lid 130 and the housing 120 sandwiching the damper 180. Become.
  • the purge solenoid valve 100 may include a plurality of columns 181.
  • the damper 180 is arranged so as to surround the plurality of columns 181.
  • 6A and 6D are explanatory views showing an example of the shapes of the damper 180, the support column 181 and the air damper chamber 171 included in the purge solenoid valve 100 according to the first embodiment.
  • 6A and 6D are cross-sectional views cut along a plane similar to that of FIG. 2.
  • FIG. 6B is a cross-sectional view showing an example of a cross section in the XX'plane shown in FIG. 6A.
  • FIG. 6C is a cross-sectional view showing another example of the cross section in the XX'plane shown in FIG. 6A.
  • FIG. 6E is a cross-sectional view showing an example of a cross section in the XX'plane shown in FIG. 6D.
  • FIG. 6F is a cross-sectional view showing another example of the cross section in the XX'plane shown in FIG. 6D.
  • each of the plurality of columns 181 shown in FIGS. 6A and 6B or 6C, or 6D and 6E or 6F is fixed to the lid 130.
  • the support column 181 is integrally formed with the lid 130.
  • the support column 181 is formed of a metal such as iron, aluminum, or stainless steel, or a material such as a thermoplastic resin.
  • the plurality of columns 181 shown in FIGS. 6A and 6B or 6C, or FIGS. 6D and 6E or 6F are examples, and each of the plurality of columns 181 is fixed to the housing 120. You may. Further, the shape of the support column 181 is arbitrary as long as it is formed so as to maintain the shape of the air damper chamber 171.
  • the purge solenoid valve 100 opens and closes the flow path as compared with the conventional purge solenoid valve provided with the chamber chamber 170 having the same capacity while maintaining the shape of the air damper chamber 171. It is possible to improve the reduction rate of the pulsation that occurs at the time.
  • the purge solenoid valve 100 is a duty-driven purge solenoid valve 100, which is a valve body 140 that opens and closes a flow path from the canister 20 to the engine 40, and a flow on the canister 20 side with respect to the valve body 140.
  • a chamber chamber 170 provided in the road and a damper 180 which is a damper 180 for partitioning the chamber chamber 170 into a flow path and an air damper chamber 171 and which is formed of an elastic elastic body are provided.
  • the purge solenoid valve 100 improves the reduction rate of pulsation generated when opening and closing the flow path as compared with the conventional purge solenoid valve provided with the chamber chamber 170 having the same capacity. be able to.
  • the elastic body forming the damper 180 is made of a rubber material in the above configuration.
  • the purge solenoid valve 100 improves the reduction rate of pulsation generated when opening and closing the flow path as compared with the conventional purge solenoid valve provided with the chamber chamber 170 having the same capacity. be able to.
  • the purge solenoid valve 100 configures the air damper chamber 171 as a space in the chamber chamber 170 surrounded by a part of the portion forming the chamber chamber 170 and the damper 180. did. With this configuration, the purge solenoid valve 100 improves the reduction rate of pulsation generated when opening and closing the flow path as compared with the conventional purge solenoid valve provided with the chamber chamber 170 having the same capacity. be able to.
  • the chamber chamber 170 is formed by the housing 120 forming the flow path and the lid 130 closing the opening of the housing 120, and the air damper chamber 171 is formed.
  • the purge solenoid valve 100 facilitates work such as inspection inside the housing 120, and has a flow path as compared with a conventional purge solenoid valve provided with a chamber chamber 170 having the same capacity. It is possible to improve the reduction rate of the pulsation generated when the valve is opened and closed.
  • the purge solenoid valve 100 is configured such that the damper 180 is fixed to the lid 130 in the above configuration. With such a configuration, the purge solenoid valve 100 facilitates work such as inspection inside the housing 120, and has a flow path as compared with a conventional purge solenoid valve provided with a chamber chamber 170 having the same capacity. It is possible to improve the reduction rate of the pulsation generated when the valve is opened and closed.
  • the purge solenoid valve 100 is configured such that the damper 180 is fixed by being sandwiched between the lid 130 and the housing 120 in the above configuration.
  • the purge solenoid valve 100 facilitates work such as inspection inside the housing 120, and has a flow path as compared with a conventional purge solenoid valve provided with a chamber chamber 170 having the same capacity. It is possible to improve the reduction rate of the pulsation generated when the valve is opened and closed. Further, with this configuration, the purge solenoid valve 100 can replace only the damper 180 when the damper 180 deteriorates.
  • Embodiment 2 The purge solenoid valve 100a according to the second embodiment will be described with reference to FIGS. 7 and 8.
  • FIG. 7 is a configuration diagram showing an example of the configuration of the main part of the purge solenoid valve 100a according to the second embodiment.
  • FIG. 8 is an exploded view showing an example of a state in which the purge solenoid valve 100a shown in FIG. 7 is disassembled. 7 and 8 are cross-sectional views cut along a plane similar to that of FIG. 2.
  • the purge solenoid valve 100a includes a solenoid actuator 110, a housing 120, a lid 130, a valve body 140, a canister pipe 150, an intake manifold pipe 160, a chamber chamber 170, a damper 180, an air filter 190, and an air damper chamber 171.
  • the solenoid actuator 110, the housing 120, the lid 130, the valve body 140, the canister pipe 150, the intake manifold pipe 160, the chamber chamber 170, and the air damper chamber 171 included in the purge solenoid valve 100a have the purge solenoid valve 100 shown in the first embodiment. Since it is the same as the solenoid actuator 110, the housing 120, the lid 130, the valve body 140, the canister pipe 150, the intake manifold pipe 160, the chamber chamber 170, and the air damper chamber 171, the description thereof will be omitted.
  • the air filter 190 is a filter that removes dust mixed in the fuel vapor flowing from the canister pipe 150. As shown in FIG. 7, the air filter 190 is arranged, for example, in the chamber chamber 170.
  • FIG. 9 is a configuration diagram showing an example of the configuration of a conventional purge solenoid valve. Note that FIG. 9 is a cross-sectional view cut along a plane similar to that of FIG. Since the air filter 190 may be clogged with dust, the air filter 190 is interchangeably arranged in a conventional purge solenoid valve.
  • a conventional purge solenoid valve is provided with a spring whose one end is fixed to a lid that closes an opening of the housing, and the air filter 190 is fixed in a state of being pressed against the housing by the repulsive force of the spring. Will be done.
  • the damper 180 abuts on the air filter 190 when the lid 130 is attached to the housing 120. In this state, the air filter 190 is fixed by being sandwiched between the damper 180 and the housing 120. Further, the purge solenoid valve 100a shown in FIGS. 7 and 8 is capable of inspecting or replacing the air filter 190 in the chamber chamber 170 with the lid 130 removed from the housing 120. be.
  • the purge solenoid valve 100a has the same capacity while eliminating the need for a spring for fixing the air filter 190 arranged in the chamber chamber 170 of the conventional purge solenoid valve. Compared with the conventional purge solenoid valve provided with the chamber 170, the reduction rate of the pulsation generated when opening and closing the flow path can be improved.
  • the shapes of the damper 180 and the air damper chamber 171 included in the purge solenoid valve 100a shown in FIGS. 7 and 8 are examples, and the shapes of the damper 180 and the air damper chamber 171 are limited to the shapes shown in FIGS. 7 and 8. It's not something.
  • the shapes of the damper 180 and the air damper chamber 171 included in the purge solenoid valve 100a are the shape shown in FIG. 4C, the shape shown in FIG. 5, and the shape shown in FIG. 5 if the air filter 190 is sandwiched between the damper 180 and the housing 120. It may have the shape shown in 6A and FIG. 6B or FIG. 6C, or FIG. 6D and FIG. 6E or FIG. 6F. In particular, as shown in FIGS.
  • the air filter 190 is sandwiched by the damper 180 and the housing 120. Not only that, but also because it is further sandwiched between the support column 181 and the housing 120, it is possible to prevent the air filter 190 from being displaced when the valve body 140 is opened and closed.
  • the purge solenoid valve according to this disclosure can be applied to the purge system.
  • Purge system 10 fuel tank, 20 canister, 30 intake manifold, 40 engine, 100 purge solenoid valve, 100a purge solenoid valve, 110 solenoid actuator, 120 housing, 130 lid, 140 valve body, 150 canister piping, 160 intake manifold piping , 170 chamber room, 171 air damper room, 180 damper, 181 columns, 190 air filter.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

Électrovanne de purge (100) s'impliquant dans un entraînement actif, l'électrovanne de purge (100) comprenant : un corps (140) de vanne destiné à ouvrir/fermer un circuit d'écoulement d'un absorbeur (20) vers un moteur (40) ; une chambre (170) disposée sur le circuit d'écoulement du côté absorbeur (20) par rapport au corps (140) de vanne ; et un registre (180) destiné à délimiter la chambre (170) en le circuit d'écoulement et une chambre (171) de clapet à air, le registre (180) étant formé à partir d'un corps élastique présentant une certaine élasticité.
PCT/JP2020/026462 2020-07-06 2020-07-06 Électrovanne de purge WO2022009283A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2020/026462 WO2022009283A1 (fr) 2020-07-06 2020-07-06 Électrovanne de purge

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Application Number Priority Date Filing Date Title
PCT/JP2020/026462 WO2022009283A1 (fr) 2020-07-06 2020-07-06 Électrovanne de purge

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WO2022009283A1 true WO2022009283A1 (fr) 2022-01-13

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PCT/JP2020/026462 WO2022009283A1 (fr) 2020-07-06 2020-07-06 Électrovanne de purge

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59101078U (ja) * 1982-12-27 1984-07-07 日立金属株式会社 バルブ
JPS63118484U (fr) * 1987-01-26 1988-07-30
JPH0458679U (fr) * 1990-09-27 1992-05-20
JP2001511548A (ja) * 1997-07-25 2001-08-14 ジーメンス カナダ リミテッド 調整された線形パージソレノイドバルブ
JP2001295960A (ja) * 2000-04-17 2001-10-26 Toyota Motor Corp 電磁弁
WO2012176238A1 (fr) * 2011-06-23 2012-12-27 三菱電機株式会社 Électrovanne
JP2017180363A (ja) * 2016-03-31 2017-10-05 三菱電機株式会社 パージソレノイドバルブ

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59101078U (ja) * 1982-12-27 1984-07-07 日立金属株式会社 バルブ
JPS63118484U (fr) * 1987-01-26 1988-07-30
JPH0458679U (fr) * 1990-09-27 1992-05-20
JP2001511548A (ja) * 1997-07-25 2001-08-14 ジーメンス カナダ リミテッド 調整された線形パージソレノイドバルブ
JP2001295960A (ja) * 2000-04-17 2001-10-26 Toyota Motor Corp 電磁弁
WO2012176238A1 (fr) * 2011-06-23 2012-12-27 三菱電機株式会社 Électrovanne
JP2017180363A (ja) * 2016-03-31 2017-10-05 三菱電機株式会社 パージソレノイドバルブ

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