EP3642517A1 - Soupape proportionnelle pour la commande d'un milieu gazeux et agencement de piles à combustible - Google Patents

Soupape proportionnelle pour la commande d'un milieu gazeux et agencement de piles à combustible

Info

Publication number
EP3642517A1
EP3642517A1 EP18722427.4A EP18722427A EP3642517A1 EP 3642517 A1 EP3642517 A1 EP 3642517A1 EP 18722427 A EP18722427 A EP 18722427A EP 3642517 A1 EP3642517 A1 EP 3642517A1
Authority
EP
European Patent Office
Prior art keywords
spring
proportional valve
spring force
closure element
closing element
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
EP18722427.4A
Other languages
German (de)
English (en)
Inventor
Andreas Gruenberger
Hans-Christoph Magel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP3642517A1 publication Critical patent/EP3642517A1/fr
Pending legal-status Critical Current

Links

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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/36—Valve members
    • 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/42—Valve seats
    • 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
    • F16K31/0644—One-way valve
    • F16K31/0655—Lift valves
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04201—Reactant storage and supply, e.g. means for feeding, pipes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells

Definitions

  • Proportional valve for controlling a gaseous medium
  • the invention relates to a proportional valve for controlling a gaseous medium and a fuel cell assembly.
  • a proportional valve for controlling a gaseous medium, such as hydrogen is described.
  • the closing element which is designed as a needle, is connected to a closing spring.
  • an actuator which comprises a magnetic coil and an armature, the needle is designed to be movable for opening and closing a passage opening.
  • the invention is based on a proportional valve for controlling a gaseous medium and a fuel cell arrangement.
  • An advantage of a proportional valve according to claim 1 is that a
  • a proportional valve according to claim 1 for controlling a gaseous medium, in particular hydrogen which comprises a moving closing element and a first spring arranged on the closing element.
  • the first spring is adapted to exert a first spring force in a closing direction on the closing element.
  • the proportional valve further comprises an actuator, wherein the actuator is adapted to provide an adjustable force, which is directed against the first spring force.
  • the closing element is configured to close and open a passage opening by the movement.
  • the proportional valve according to claim 1 is characterized in that it comprises a closure element, which is arranged at one end of the closing element. Furthermore, the proportional valve is characterized in that it comprises a second spring, wherein the second spring is arranged on the closure element and wherein the second spring is adapted to exert a second spring force on the closure element, wherein the second spring force counteracts the first spring force ,
  • An advantage is that a secure closing of the passage opening depends on the design of the first spring force and the second spring force, wherein the manufacture of the springs and thus the interpretation of the spring forces with a high
  • Closure element are not firmly connected to each other but are executed separately.
  • Closing element and the closure element is that the
  • Closure element can align parallel to the valve seat, since a movement between the closure element and the closing element is possible. Thus, the closure element can align parallel even with existing tolerances between the closing element and the valve seat and one achieves a good tightness.
  • Another advantage that results from the arrangement of the second spring is that wear of the proportional valve is reduced and thus the life of the proportional valve can be increased.
  • the closing element may be designed to close or release a valve seat formed in the region of the passage opening. An advantage is that thus with increasing
  • Closing element and the closure element is simplified because the
  • Closing element and the closure element can be designed as separate components and are not firmly connected to each other, but are fixed by the first spring force and the second spring force to each other. Furthermore, by the tolerance requirements on the structure of the proportional valve can be reduced without the accuracy decreases to achieve sufficient tightness. Another advantage is that thus a better adjustability of the resulting spring force is made possible.
  • the magnitude of the first spring force is greater than the second spring force.
  • the second spring force may be greater than the maximum closing force on the valve seat, which is due to the
  • the closure element may have a
  • the second spring is operatively connected via the support structure with the closure element.
  • the closure element may be cup-shaped.
  • the second spring advantageously a second spring force, which counteracts the first spring force, on the
  • Proportional valve can be increased.
  • an elastic element can be arranged on a surface of the closure element facing the passage opening.
  • Closing element may be arranged on a first side of the passage opening and an outflow space may be formed on a second side of the passage opening facing away from the first side, wherein the inflow space and the
  • a contact point of the closing element with the closure element can be made spherical.
  • One advantage is that it can be used to improve the compensation of angular tolerances. Thus, the tightness and the reliability of the proportional valve can be increased.
  • the actuator may comprise a magnetic coil and a magnet armature, wherein the magnet armature is fixedly connected to the closing element and wherein the magnet armature is liftbewegbar by the magnetic coil.
  • FIG. 1 shows a cross section of a proportional valve according to a first
  • FIG. 2 shows a cross-section of a proportional valve according to a second exemplary embodiment with a crowned contact point between the closing element and the closure element
  • Fig. 3 shows a simplified structure of a fuel cell assembly
  • Fig. 4 shows a detail of a cross section of a proportional valve according to a third embodiment
  • Fig. 5 shows a detail of a cross section of a proportional valve according to a fourth embodiment.
  • Fig. 1 is a cross section of a proportional valve 100 for controlling a gaseous medium, in particular hydrogen, according to a first Embodiment shown.
  • the proportional valve 100 comprises a movable closing element 301 and a first spring 302 arranged on the closing element 301, wherein the first spring 302 exerts a first spring force in a closing direction 409 on the closing element 301.
  • the first spring 302 is formed here as a helical compression spring.
  • the first spring 302 is arranged at a first end of the closing element 301, wherein the first spring 302 is supported at the other end to a valve housing 104.
  • the valve housing 104 surrounds the entire proportional valve 100.
  • a closure element 305 is arranged at an end of the closing element 301 facing away from the first end.
  • the proportional valve includes
  • the actuator 200 and the closing element 301 are arranged in the valve housing 104.
  • the actuator 200 is configured to provide an adjustable force opposing the first spring force to the closure member 301.
  • the closing element 301 is to
  • the actuator 200 comprises a magnet armature 202, which is fixedly connected to the closing element 301, and a magnet coil 201.
  • the magnet armature 202 can be moved by the magnet coil 201.
  • the magnet armature 202 is at least partially disposed inside the magnet coil 201.
  • the armature 202 is cylindrical here.
  • the closing element 301 is rod-shaped here, wherein the rod-shaped closing element 301 extends through the magnet armature 202 along an axis of symmetry 411 of the armature 202 and parallel to
  • Symmetry axis 411 is Hubbewegbar.
  • an inner pole 204 is partially accommodated inside the magnet coil 201, and an outer pole 205 is disposed between the valve housing 104 and the magnet coil 201, thereby forming a plunger armature.
  • Valve housing portion 104 ' is formed in Fig. 1 hollow cylindrical.
  • the inner pole 204 and the inside of the magnetic coil 201 extending Valve housing portion 104 ' serve as a guide for the armature 202.
  • the distance sleeve members 203 are preferably made of a non-magnetic material, such as a non-magnetic metal, be formed. The valve housing 104 and the inner pole 204 limit together with the
  • Magnetic armature 202 is arranged.
  • the inner pole 204 includes on a side remote from the armature space 405 side together with the valve housing 104 a spring chamber 401, in which the first spring 302 is arranged.
  • the spring chamber 400 is connected to the armature space 405 via a first channel 406, and the armature space 405 is connected via a second channel 407 to an inflow space 401.
  • the first channel 406 and the second channel 407 allow a pressure equalization between the spring chamber 400, the armature space 405 and the inflow space 401st
  • Proportional valve 100 in FIG. 1 includes a second spring 304 disposed on closure element 305.
  • the closure element 305 comprises a support structure 303, wherein the second spring 304 via the support structure 303 with the
  • Closure element 305 is operatively connected.
  • the closure element 305 is cup-shaped in FIG. 1, wherein the support structure 303 forms an annular projection of the closure element 305, on which the second spring 304 is supported.
  • Closure element 305 are identical.
  • the closure element 305 and the second spring 304 are arranged in the inflow space 401 of the proportional valve 100 in FIG. 1, wherein the inflow space 401 in the one shown in FIG.
  • Embodiment of the valve housing 104 and a nozzle body 101 is limited.
  • the inflow space 401 can be connected via the passage opening 102 to an outflow space 402. Via an inflow channel 408, which serves as an opening between an environment of the proportional valve 100 and the
  • a gas for example hydrogen
  • a gas for example hydrogen
  • the gas can flow in the outflow direction 404 from the inflow space 401 into the outflow space 402.
  • Nozzle body 101 limited, which partially from the valve housing 104th is included.
  • the outflow space 402 may be at least partially bounded by the valve housing 104.
  • a valve seat 103 is formed on a side of the passage opening 102 facing the inflow space 401.
  • the valve seat 103 is provided as a flat seat on the nozzle body 101, wherein between the closure member 305 and the
  • Nozzle body 101 in Fig. 1 an elastic member 306 is arranged.
  • an increased sealing edge is provided on the elastic element 306 in order to increase the tightness.
  • the first spring 302 is configured to exert a first spring force in the closing direction 409 on the closing element 301.
  • the first spring 302 is supported on the one hand with a first end on the valve housing 104 and transmits the first spring force on the closing element 301.
  • the first spring 302 is supported with its second end on the closing element 301.
  • a spring plate 300 is additionally arranged between the closing element 301 and the first spring 302. The spring plate 300 may transmit the first spring force from the first spring 302 to the closure member 301.
  • the first spring 302 urges the closure element 301 and thus the closure element 305 with the first spring force, which in the closing direction 409, i. towards the
  • Valve seat 103 acts.
  • the closure element 305 is also acted upon in the closing direction 409 by the gas flowing in through the inflow channel 408 with a further force.
  • the second spring 304 exerts a second
  • the closing element 301 acts a force which depends on the difference of the first spring force and the second spring force, wherein this differential force is linear to the deflection of the springs.
  • the second spring 304 acts in Fig. 1, the closure member 305 with a force in
  • the first spring 302 and the second spring 304 provide a connection between the closure member 301 and the closure member 305 by pressing the closure member 301 and the closure member 305 against each other.
  • valve dynamics a separation of the components in the operation of the proportional valve 100 can be avoided, which prevents wear problems.
  • the first spring force may be greater in magnitude than the second spring force, so that in a basic state of the proportional valve 100, the passage opening 102 is closed and opens only when the magnet coil 201 is energized.
  • the second spring force can be greater than the maximum closing forces on the valve seat 103, which is due to the
  • Supply pressure and the flow result be selected.
  • the supply pressure corresponds to the pressure in the inflow space 401. This can ensure that the valve seat 103 opens safely under any operating condition.
  • the metering of a gas by means of the proportional valve 100 is effected by energizing the solenoid 201.
  • the valve seat 103 In the ground state, i. a non-energized state of the solenoid 201, the valve seat 103 is acted upon by the second spring 304 with the second spring force in the opening direction 410 and via the closing element 301 with the first spring force in the closing direction 409th
  • the valve seat 103 remains closed.
  • the magnet coil 201 is energized, the magnet armature 202 is moved in the opening direction 410 by the magnetic field of the magnet coil 201. The force on the armature 202 and thus on the closing element 301 counteracts the first spring force in the opening direction 410, so that on
  • Closure element 305 outweighs the force in the opening direction 410 and thus the passage opening 102 and the valve seat 103 are released.
  • the lifting movement of the armature 202 can be controlled by adjusting the electric current of the solenoid 201.
  • Amperage is thereby achieved an increasing opening stroke and more gas from the inflow chamber 401 passed through the passage opening 102 in the outflow space 402. Reducing the electric current also reduces the opening stroke. If the energization ends, the valve seat 103 closes due to the first spring 302 and the supply pressure in the inflow space 401.
  • FIG. 2 shows a cross section of a proportional valve 100 according to a further exemplary embodiment.
  • the difference to the proportional valve 100 in FIG. 1 is that the contact point 307 between the closing element 301 and the closure element 305 is crowned.
  • FIG. 3 shows a simplified structure of a possible fuel cell arrangement 500 with the proportional valve 100 for controlling a hydrogen supply to a fuel cell 501.
  • the fuel cell assembly 500 includes an anode region 504 and a cathode region 506. The
  • Fuel cell assembly 500 further comprises a tank 502 in which a gaseous medium, here hydrogen, is stored. Over a gaseous medium, here hydrogen, is stored. Over a gaseous medium, here hydrogen, is stored.
  • Inlet line 502 is the gaseous medium from the tank 502 through the
  • Inflow channel 408, which is realized as an opening in the valve housing 104, in the inflow space 401 of the proportional valve 100, as shown for example in Figures 1 and 2, passed.
  • the gaseous medium can be conducted into the nozzle body 101 of a single-jet pump 503 via the passage opening 102 and can be supplied from there to an anode region 504 of the fuel cell 501.
  • a flow rate of the gaseous medium through the proportional valve 100 can be controlled.
  • the setting of the opening stroke can by a
  • Control unit 505 by adjusting the electrical current at the
  • Solenoid 201 of the proportional valve 100 done.
  • Opening stroke depends on the electrical current. As a result, a demand-based adjustment of the gas supply to the fuel cell 501 can take place.
  • FIG. 5 shows a detail of a cross section of a proportional valve 100 according to a further exemplary embodiment. This embodiment differs from the embodiment shown in FIG. 1 in the arrangement of the second spring 304. In the embodiment shown in FIG Embodiment, the second spring 304 downstream, that is in the
  • the support structure 303 here comprises a disk-shaped element 303 "and a connecting pin 303 '
  • Connecting pin 303 ' is applied at a first end to the closing element 305 and connected at a second end to the disk-shaped element 303 ".”
  • the connecting pin 303' centrally abuts the closing element 405.
  • the second spring force acts in the opening direction 410.
  • the second spring 304 supports on a spring washer 308 which is arranged on a side facing away from the support structure 303 side of the second spring 304, and presses on the disc-shaped element 303 "and thus on the connecting pin 303 ', which transmits the force in the opening direction 410 on the closure member 405 , As a result, the spring force is introduced centrally into the closure element 305, so that displacement or tilting of the closure element 305 during opening can be avoided.
  • the spring washer 308 is on one of
  • the spring washer 308 allows adjustment of the second spring force.
  • the spring washer 308 may be provided with a thread 308 ', as shown in Fig. 5.
  • the spring washer 308 can be pressed to size.
  • the spring washer 308 to a central bore is arranged to reach with a probe to the support structure 303. Due to the good accessibility of the second spring 304 can be realized for this in a simple manner, an adjustment of the second spring 304, for example via the thread 308 'or a pressing operation to measure. As a result, component tolerances can be reduced.
  • constructions can thus be realized in which the first spring 302, that is, the closing spring is not adjustable. Since at least one of the springs should be adjustable to compensate for tolerances, this can be done via the setting of the second spring 304.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetically Actuated Valves (AREA)
  • Fuel Cell (AREA)
  • Lift Valve (AREA)

Abstract

L'invention concerne une soupape proportionnelle (100), destinée à commander un milieu gazeux, en particulier de l'hydrogène, qui comprend • un élément de fermeture mobile (301) et un premier ressort (302) disposé au niveau de l'élément de fermeture (301), le premier ressort (302) étant adapté pour exercer une première force de ressort dans un sens de fermeture sur l'élément de fermeture (301), et • un actionneur (200), l'actionneur (200) étant adapté pour produire une force réglable s'opposant à la première force de ressort, l'élément de fermeture (301) étant adapté pour fermer et ouvrir par mouvement une ouverture de passage (102), la soupape proportionnelle (100) comprenant • un élément de fermeture (305), qui est disposé à une extrémité de l'élément de fermeture (301) qui est opposée au premier ressort (302), et • un deuxième ressort (304), le deuxième ressort (304) étant disposé au niveau de l'élément de fermeture (305) et le deuxième ressort (304) étant adapté pour exercer une deuxième force de ressort sur l'élément de fermeture (305), la deuxième force de ressort s'opposant à la première force de ressort.
EP18722427.4A 2017-06-21 2018-04-25 Soupape proportionnelle pour la commande d'un milieu gazeux et agencement de piles à combustible Pending EP3642517A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017210351.5A DE102017210351A1 (de) 2017-06-21 2017-06-21 Proportionalventil zum Steuern eines gasförmigen Mediums und Brennstoffzellenanordnung
PCT/EP2018/060581 WO2018233912A1 (fr) 2017-06-21 2018-04-25 Soupape proportionnelle pour la commande d'un milieu gazeux et agencement de piles à combustible

Publications (1)

Publication Number Publication Date
EP3642517A1 true EP3642517A1 (fr) 2020-04-29

Family

ID=62116394

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18722427.4A Pending EP3642517A1 (fr) 2017-06-21 2018-04-25 Soupape proportionnelle pour la commande d'un milieu gazeux et agencement de piles à combustible

Country Status (6)

Country Link
US (1) US11268626B2 (fr)
EP (1) EP3642517A1 (fr)
JP (1) JP7149966B2 (fr)
CN (1) CN110770485B (fr)
DE (1) DE102017210351A1 (fr)
WO (1) WO2018233912A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021132079A (ja) * 2020-02-18 2021-09-09 イーグル工業株式会社 ソレノイド
KR20220017239A (ko) * 2020-08-04 2022-02-11 현대자동차주식회사 자동차용 연료탱크 밀폐밸브

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CH551585A (de) 1972-11-06 1974-07-15 Landis & Gyr Ag Magnetventil.
JPS529122A (en) * 1975-07-12 1977-01-24 Tokico Ltd Pressure regulator having electromagnetic valve
JP2605927B2 (ja) 1990-06-04 1997-04-30 三菱電機株式会社 比例流量制御バルブ
JPH064479U (ja) * 1992-06-23 1994-01-21 株式会社ユニシアジェックス ソレノイドバルブ
DE19700979A1 (de) * 1997-01-14 1998-07-16 Teves Gmbh Alfred Magnetventil
DE19905722A1 (de) * 1998-02-24 1999-08-26 Hoerbiger Ventilwerke Gmbh Gasventil
DE10010734A1 (de) * 2000-03-04 2001-09-06 Continental Teves Ag & Co Ohg Elektromagnetventil, insbesondere für schlupfgeregelte Kraftfahrzeugbremsanlagen
US7040596B2 (en) * 2002-11-29 2006-05-09 Keihin Corporation Solenoid valve for fuel cell
JP2007524050A (ja) 2004-02-27 2007-08-23 デーナ、カナダ、コーパレイシャン 漏れ抵抗性電磁弁
CA2459088C (fr) 2004-02-27 2012-08-21 Dana Canada Corporation Electrovanne etanche
JP2005282837A (ja) 2004-03-31 2005-10-13 Nissan Tanaka Corp 電磁弁
JP2005282838A (ja) * 2004-03-31 2005-10-13 Nissan Tanaka Corp 電磁弁
DE102005006355A1 (de) 2005-02-11 2006-08-24 Robert Bosch Gmbh Brennstoffzellenanlage mit einer Dosiereinheit
JP5144124B2 (ja) * 2007-05-17 2013-02-13 本田技研工業株式会社 燃料電池システム
DE102009027727A1 (de) 2009-07-15 2011-01-20 Robert Bosch Gmbh Ventilanordnung
DE102010043618A1 (de) 2010-11-09 2012-05-10 Robert Bosch Gmbh Proportionalventil zum Steuern und Ansaugen von gasförmigem Medium
DE102012204565A1 (de) * 2012-03-22 2013-09-26 Robert Bosch Gmbh Proportionalventil mit verbessertem Dichtsitz
DE102014210066A1 (de) 2014-05-27 2015-12-03 Continental Teves Ag & Co. Ohg Elektromagnetventil
DE102014213235A1 (de) 2014-07-08 2016-01-14 Continental Teves Ag & Co. Ohg Elektromagnetventil

Also Published As

Publication number Publication date
WO2018233912A1 (fr) 2018-12-27
CN110770485B (zh) 2023-01-10
DE102017210351A1 (de) 2018-12-27
JP7149966B2 (ja) 2022-10-07
US11268626B2 (en) 2022-03-08
CN110770485A (zh) 2020-02-07
JP2020522657A (ja) 2020-07-30
US20210148484A1 (en) 2021-05-20

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