EP3714347A1 - Soupape de dosage et unité de pompe à jet pour la commande d'un milieu gazeux - Google Patents

Soupape de dosage et unité de pompe à jet pour la commande d'un milieu gazeux

Info

Publication number
EP3714347A1
EP3714347A1 EP18779329.4A EP18779329A EP3714347A1 EP 3714347 A1 EP3714347 A1 EP 3714347A1 EP 18779329 A EP18779329 A EP 18779329A EP 3714347 A1 EP3714347 A1 EP 3714347A1
Authority
EP
European Patent Office
Prior art keywords
metering valve
valve
jet pump
housing
nozzle
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.)
Withdrawn
Application number
EP18779329.4A
Other languages
German (de)
English (en)
Inventor
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 EP3714347A1 publication Critical patent/EP3714347A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/20—Control of fluid pressure characterised by the use of electric means
    • G05D16/2006—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means
    • G05D16/2013—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means
    • G05D16/2022—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means actuated by a proportional solenoid
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/20—Control of fluid pressure characterised by the use of electric means
    • G05D16/2006—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means
    • G05D16/2013—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/005—Nozzles or other outlets specially adapted for discharging one or more gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/14—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/14—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid
    • F04F5/16—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing elastic fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
    • F04F5/46—Arrangements of nozzles
    • 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
    • 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
    • H01M8/04201—Reactant storage and supply, e.g. means for feeding, pipes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2250/00—Fuel cells for particular applications; Specific features of fuel cell system
    • H01M2250/20—Fuel cells in motive systems, e.g. vehicle, ship, plane
    • 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
    • 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
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/40—Application of hydrogen technology to transportation, e.g. using fuel cells

Definitions

  • the invention relates to a metering valve and a jet pump unit for controlling a gaseous medium, in particular hydrogen, for example for use in vehicles with fuel cell drive.
  • DE 10 2010 043 618 A1 describes a metering valve for controlling a gaseous medium, in particular hydrogen, wherein the metering valve comprises a valve housing, an ejector unit, an actuator and a closing element.
  • the valve housing a passage opening is formed, which can be released or closed by the closing element on a valve seat.
  • the ejector unit comprises an inflow region to which a first gasförmi saturated medium is supplied under pressure, a suction, where a second medium is present and a mixing tube region, from which emerges a mixture of the first and second gaseous medium.
  • the passage opening is arranged between the inflow area and the suction area of the ejector unit.
  • a wear and leakage reduction and thus optimal operation of the metering valve and the jet pump in the fuel cell assembly can be achieved by an improved design of the combination of metering valve and jet pump.
  • the metering valve according to the invention and the jet pump unit for controlling a gaseous medium, in particular hydrogen has the advantage that improved by an optimized integration of a metering valve in a jet pump unit, the tolerances on the valve seat and thereby the tightness inner half of the metering valve is increased.
  • the metering valve for controlling a gaseous medium, in particular hydrogen a valve housing, in which an interior space is formed.
  • a movable along a longitudinal axis of the metering valve closing element is arranged, which cooperates tilsitz for opening or closing an opening cross-section of an inflow region in a passageway with a Ven.
  • the metering valve has a nozzle, in which the passage channel is formed, wherein at least one sealing element is arranged on an outer side of the nozzle, which is adapted to seal a gap in a nozzle receiving the opening.
  • a jet pump unit comprises the metering valve according to the invention, a jet pump housing, a mixing tube area, an intake passage and a drainage area.
  • the jet pump housing comprises the valve housing of the metering valve and a pump housing.
  • the longitudinal axis of the metering valve is identical to a longitudinal axis of the jet pump unit.
  • the pump housing has an at least partially stepped through bore, wherein the nozzle of the metering valve is arranged coaxially in the pump housing in front of the mixing tube area and received in a Publ tion of the pump housing, wherein the at least one you telement the nozzle seals a gap between the nozzle and the pump housing from.
  • the through-bore is advantageously at least conically tapered at least from section, wherein a flow channel of the jet pump unit radially to the longitudinal axis of the jet pump unit in the Pumpenge- housing is formed in the conical region of the through hole.
  • the inlet channel of the metering valve is advantageously radially to the longitudinal axis of the jet pump unit at least partially formed in the pump housing, wherein the valve housing is arranged with a step on the pump housing and fixedly connected thereto, preferably by means of a screw member. Before geous enough, the inflow region of the metering valve is arranged in the fürgangsboh tion.
  • the nozzle in the metering valve By integrating the nozzle in the metering valve, it is possible to direct the flow of the gaseous medium to the valve seat directly into the jet pump unit. As a result, an optimized design of metering valve and Pum pengetude the jet pump unit can be achieved. Furthermore, the connec tion point between the metering valve and the nozzle in the pump housing of the jet pump unit is arranged, wherein the nozzle is integrated at the first stage of the pump housing in the pump housing and is sealed by the Dichtele element against the pump housing, so that at the connection point between the metering valve and the nozzle leakage is minimized in the direction of the suction area.
  • the nozzle comprises a cup-shaped region, wherein the at least one you telement in the cup-shaped region is arranged. Furthermore, the topfför shaped area on a bottom of the pot on which the valve seat is formed.
  • the valve housing has a pin-shaped end, with wel chem the valve housing is received in the pot-shaped region of the nozzle, wherein the pin-shaped end in the inflow region has a surface which rests against a formed on the nozzle mating surface.
  • valve seat is formed as a flat seat and disposed between the valve seat and the closing element is a elastic cal sealing element.
  • the metering valve comprises an electromagnet with an inner pole, wherein the In nenpol and the valve housing via a magnetic throttle point are operatively connected to each other. Due to the one-piece design of the inner pole and the Ven tilgephaseuses and in combination with the connection point between the Ventilge housing and the nozzle tolerances on the valve seat can be minimized and the totality of the tightness of the metering valve can be improved.
  • the closing element is operatively connected to a Magnetankervor direction, wherein the inner pole has a first guide portion and a second guide portion and wherein second bearing bushes are arranged on the second guide, at which second Lagerbüch sen, the magnet armature device is guided with a piston-shaped portion.
  • the piston-shaped portion is made of a material having high mechanical strength.
  • the jet pump unit described is preferably suitable in a fuel cell fuel assembly for controlling a hydrogen supply to a Anodenbe rich a fuel cell. Advantages are the low pressure fluctuations in the anode path and a quiet operation.
  • FIG. 1 shows an embodiment of a metering valve according to the invention with a nozzle in longitudinal section
  • Fig. 2 shows an embodiment of a Strahlpumpenein invention unit with the metering valve shown in Fig. 1 in longitudinal section.
  • Fig.l shows a first embodiment of a Dosierven tils 1 according to the invention in longitudinal section.
  • the metering valve 1 has a valve housing 2 with a nenraum 3 in.
  • an electromagnet 26 is arranged, wel cher a magnetic coil 12, an inner pole 14 and an outer pole 13 includes.
  • a lifting magnet armature device 25 is arranged in the interior 3.
  • the magnet armature device 25 comprises a magnet armature 8 and a connecting element 9, which is received in a recess 22 of the Magnetan kers 8 and thus firmly connected to the armature 8, for example, by a weld or by compression.
  • the magnet armature 8 is designed as a plunger armature and received in the inner pole 14.
  • the In nenpol 14 has a recess 21 with a recess edge 24 in which the armature 8 is immersed in its lifting movement.
  • first bearing bushes 60 are arranged in a recess, in which the connecting element 9 cut at a first Whysab 6 of the inner pole 14 is received and guided. Furthermore, at the Valve housing 2 second bearing bushes 70 are arranged, in which a kolbenför Miger section 23 of the connecting element 9 in a second Whysab section 7 is received and guided.
  • the piston-shaped portion 23 of the Ver connecting element 9 is made of a material with high mechanical Festig speed.
  • the metering valve 1 comprises a nozzle 15, which has a cup-shaped region 151 with a pot base 1510 and a pin 152.
  • the Ven tilgepuruse 2 is received with a the electromagnet 26 facing away from zapfenförmi gene 38 in the cup-shaped portion 151 of the nozzle 15, wherein the valve housing 2 rests with a surface 381 on a counter surface 153 of the nozzle 15.
  • an adjusting element 36 is arranged between the pin-shaped end 38 of the valve housing 2 and the nozzle 15.
  • sealing elements 54 and on the valve housing 2 Dichtele elements 53 are arranged on an outer side 90 of the nozzle.
  • the connecting element 9 is fixedly connected at one end to a closing element 10.
  • the closing element 10 has an elastic sealing element 11 at its end facing away from the connecting element 9.
  • the elastic Dichtele element 11 cooperates with a formed on the pot bottom 1510 of the nozzle 15 valve seat 19, so that when the elastic sealing element 11 resting on the valve seat 19 formed in the nozzle 15 passage channel 18 ge closed.
  • the valve seat 19 is formed here as a flat seat.
  • a spring chamber 30 is formed, which forms a part of the inner space 3 in nen.
  • a closing spring 4 is arranged, wel che between the inner pole 14 and a plate-shaped end 5 of the connec tion elements 9 is supported.
  • the closing spring 4 acts on the Magnetankervor device 25 with a force in the direction of the valve seat 19th
  • the interior space 3 comprises a magnet armature space 300, in which the magnet armature 8 is arranged.
  • the armature space 300 is connected via a connec tion channel 16 with the spring chamber 30.
  • the Sch concentrated region 10 facing the end of the armature 8 is adjacent to an inflow region 28, which is arranged via a ra dial with respect to a longitudinal axis 40 of the metering valve 1 and formed in the valve housing 2 inlet channel 17 with gaseous medium, for example hydrogen, can be filled.
  • gaseous medium for example hydrogen
  • the valve housing 2 and the inner pole 14 are connected via a magnetic throttle point 20 magnetically and mechanically interconnected.
  • a magnetic throttle point 20 magnetically and mechanically interconnected.
  • the magnetic throttle body 20 comprises a thin-walled cylindrical web 201 and a conical region 202, whereby an annular groove 301 is formed in the magnet armature space 300.
  • the stroke of the closing element 10 can be adjusted via the height of the current at the magnetic coil 12. The higher the current to the solenoid coil 12, the greater the stroke of the closing element 10 and the higher is the gas flow in the metering valve 1, since the force of the closing spring 4 is dependent on hubab. If the current intensity at the magnetic coil 12 is reduced, the stroke of the closing element 10 is also reduced and thus the gas flow rate is throttled.
  • the magnetic force is reduced to the armature 8, so that the force on the closing element 10th is reduced by means of the connecting element 9.
  • the closing element 10 be moves in the direction of the passage channel 18 and seals with the elastic sealing element 11 on the valve seat 19 from.
  • the gas flow in the metering valve 1 is interrupted.
  • the metering valve 1 according to the invention can be used lenanowski extract example in a Brennstoffzel.
  • an Ano den Kunststoff the fuel cell hydrogen can be supplied from a tank.
  • a flow cross-section at the passage channel 18 is changed in such a way that a demand-oriented adjustment of the gas flow supplied to the fuel cell takes place continuously.
  • the metering valve 1 for controlling a gaseous medium thus has the advantage that in this case the supply of the first gaseous medium and the metered addition of hydrogen into the anode region of the fuel cell by means of electronically controlled adjustment of the flow cross section of the passage channel 18 while controlling the anode pressure much more accurate can be done.
  • the reliability and durability of the connected fuel cell are significantly improved, since hydrogen is always supplied in a superstoichiometric proportion.
  • consequential damage such as damage to a downstream catalytic converter, can also be prevented.
  • the jet pump unit 46 has a Strahlpumpenge housing 41 which housing the valve housing 2 of the metering valve 1 and a Pumpenge 49 comprises.
  • the jet pump unit 46 has a longitudinal axis 40 ', which is identical to the longitudinal axis 40 of the metering valve 1.
  • the pump housing 49 In the pump housing 49 are axially to the longitudinal axis 40 'is a partially stu fenförmig and partially conical through hole 42 and radially to the longitudinal axis 40', an intake passage 43 and the inlet channel 17 of the metering valve 1 is formed.
  • the through-bore 42 In the through-bore 42 are a suction area 44, a mixing tube portion 52 and a drainage portion 45 are formed.
  • the metering valve 1 is accommodated coaxially in the pump housing 49 in sections.
  • the valve housing 2 with a step 37 on the pump housing 49 angeord net and is fixedly connected thereto via a screw member 35.
  • the nozzle 15 of the metering valve 1 rests against a step 39 formed on the pump housing 49 and is received in an opening 55 of the pump housing 49.
  • this is sealed against the first stage 39 of the pump housing 49, so that a gap 56 between the nozzle 15 and the pump housing 49 is sealed and no gaseous medium can pass through this gap 56 in the direction of the suction 44 , Gaseous medium from the inlet channel 17 thus only passes via the passage channel 18 in the direction of the suction region 44.
  • the pump housing 49 has a step 57 through which the nozzle 15 is radially centered in the pump housing 49 and thus coaxial in the Pum pengeophuse 49 is disposed in front of the mixing tube portion 52.
  • the La can tolerances of the metering valve 1, especially the nozzle 15, relative to the pump housing 49 in interaction with the stage 39 are minimized.
  • a drain channel 48 is formed radially to the longitudinal axis 40 'in the pump housing 49, wherein the through bore 42 is sealed to the end portion of the pump housing 49 with a lid 50 at the metering valve 1 till.
  • gaseous medium here hydrogen
  • gaseous medium here hydrogen
  • This hydrogen hits after exiting the nozzle 15 and entering the through-bore 42 in the intake 44 on gaseous medium, which has already been supplied to the fuel cell, but not consumed, and was guided back into the jet pump unit 46 via the intake passage 43.
  • the recycled gaseous medium mainly comprises hydrogen, but also water vapor and nitrogen.
  • a mass flow from the Ansaugbe rich 44 is sucked in by pulse exchange in the gaseous media and conveyed in the direction of the drain region 45 and thus in the direction of the anode region of the fuel cell.
  • a mass flow from the Ansaugbe rich 44 is sucked in by pulse exchange in the gaseous media and conveyed in the direction of the drain region 45 and thus in the direction of the anode region of the fuel cell.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Automation & Control Theory (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Fuel Cell (AREA)
  • Magnetically Actuated Valves (AREA)
  • Valve Housings (AREA)
  • Lift Valve (AREA)

Abstract

La présente invention concerne une soupape de dosage (1) pour la commande d'un milieu gazeux, en particulier de l'hydrogène, comprenant un carter de soupape (2), un espace intérieur (3) étant formé dans le carter de soupape (2). Dans l'espace intérieur (3), le long d'un axe longitudinal (40) de la soupape de dosage (1) est disposé un élément de fermeture mobile (10) qui interagit avec un siège de soupape (19) pour l'ouverture ou la fermeture d'une section d'ouverture (28) d'une zone d'admission vers un canal de passage (18). La soupape de dosage (1) comprend en outre une buse (15) dans laquelle le canal de passage (18) est formé et au niveau duquel est disposé un élément d'étanchéité (54), l'élément d'étanchéité (54) étant formé pour étanchéifier une fente (56) dans une ouverture logeant la buse (15).
EP18779329.4A 2017-11-21 2018-09-24 Soupape de dosage et unité de pompe à jet pour la commande d'un milieu gazeux Withdrawn EP3714347A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017220798.1A DE102017220798A1 (de) 2017-11-21 2017-11-21 Dosierventil und Strahlpumpeneinheit zum Steuern eines gasförmigen Mediums
PCT/EP2018/075790 WO2019101395A1 (fr) 2017-11-21 2018-09-24 Soupape de dosage et unité de pompe à jet pour la commande d'un milieu gazeux

Publications (1)

Publication Number Publication Date
EP3714347A1 true EP3714347A1 (fr) 2020-09-30

Family

ID=63708359

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18779329.4A Withdrawn EP3714347A1 (fr) 2017-11-21 2018-09-24 Soupape de dosage et unité de pompe à jet pour la commande d'un milieu gazeux

Country Status (7)

Country Link
US (1) US20200278706A1 (fr)
EP (1) EP3714347A1 (fr)
JP (1) JP2021502531A (fr)
KR (1) KR20200084351A (fr)
CN (1) CN111373341A (fr)
DE (1) DE102017220798A1 (fr)
WO (1) WO2019101395A1 (fr)

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DE102019214676A1 (de) * 2019-09-25 2021-03-25 Robert Bosch Gmbh Förderaggregat für ein Brennstoffzellen-System zur Förderung und/oder Steuerung eines gasförmigen Mediums
DE102019219992A1 (de) * 2019-12-18 2021-06-24 Robert Bosch Gmbh Fördereinrichtung für ein Brennstoffzellen-System zur Förderung und/oder Rezirkulation eines gasförmigen Mediums, insbesondere Wasserstoff
DE102021100754A1 (de) * 2021-01-15 2022-07-21 Marco Systemanalyse Und Entwicklung Gmbh Dosierventil

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CN103670807B (zh) * 2013-12-18 2015-12-02 哈尔滨工程大学 双燃料发动机吸动式天然气喷射电磁阀
JP6173959B2 (ja) * 2014-03-28 2017-08-02 日立オートモティブシステムズ株式会社 電磁弁、電磁弁を備えた高圧燃料供給ポンプ及び燃料噴射弁
DE102017212726B3 (de) * 2017-07-25 2018-09-13 Robert Bosch Gmbh Strahlpumpeneinheit zum Steuern eines gasförmigen Mediums

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DE102017220798A1 (de) 2019-05-23
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US20200278706A1 (en) 2020-09-03
JP2021502531A (ja) 2021-01-28

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