WO2019052717A1 - Dispositif de dosage servant à réguler un fluide gazeux - Google Patents

Dispositif de dosage servant à réguler un fluide gazeux Download PDF

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Publication number
WO2019052717A1
WO2019052717A1 PCT/EP2018/069263 EP2018069263W WO2019052717A1 WO 2019052717 A1 WO2019052717 A1 WO 2019052717A1 EP 2018069263 W EP2018069263 W EP 2018069263W WO 2019052717 A1 WO2019052717 A1 WO 2019052717A1
Authority
WO
WIPO (PCT)
Prior art keywords
metering device
sealing element
elastic sealing
armature
thermal expansion
Prior art date
Application number
PCT/EP2018/069263
Other languages
German (de)
English (en)
Inventor
Jochen Wessner
Martin Katz
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
Priority to JP2020513913A priority Critical patent/JP6902674B2/ja
Priority to CN201880059499.XA priority patent/CN111094816B/zh
Publication of WO2019052717A1 publication Critical patent/WO2019052717A1/fr

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
    • 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
    • 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
    • F16K25/00—Details relating to contact between valve members and seats
    • F16K25/005—Particular materials for seats or closure elements
    • 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
    • H01M8/02—Details
    • 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

  • the invention relates to a metering device for controlling a gaseous medium, in particular hydrogen, for example for use in vehicles with fuel cell drive.
  • DE 10 2012 204 565 AI describes a metering device, designed here as a proportional valve, for controlling a gaseous medium, in particular hydrogen, wherein the proportional valve comprises a nozzle body, a closing element and an elastic sealing element.
  • the proportional valve comprises a nozzle body, a closing element and an elastic sealing element.
  • the nozzle body In the nozzle body, at least one passage opening is formed, which can be released or closed by the closing element on a valve seat.
  • the elastic sealing element seals on the valve seat.
  • the temperature changes occurring in the metering device have an influence on the deformation of the elastic sealing element.
  • the opening process of the metering device can be impaired, since the lifting movement of the closing element can no longer be set precisely.
  • the metering device according to the invention for controlling a gaseous medium, in particular hydrogen has the advantage in this respect that, despite the temperature dependence of the elastic sealing element, optimum functioning of the metering device is achieved.
  • the metering device for controlling a gaseous medium, in particular hydrogen a valve housing, in which an interior space is formed.
  • an elastic sealing element In the interior of a liftable armature is arranged with an elastic sealing element, which cooperates for opening or closing at least one passage opening with a valve seat.
  • a frame element is arranged and fixedly connected to the armature, wherein the elastic sealing element is received in a recess of the frame element so that the thermal expansion of the elastic sealing element and the thermal expansion of the frame element are equal at a contact surface Frame member in the radial direction with respect to a
  • Longitudinal axis of the metering device has a higher coefficient of thermal expansion than in the axial direction with respect to the longitudinal axis of the metering device.
  • a reduction of the axial extent of the elastic sealing element is achieved by superposition of the thermal axial and radial expansion, so that no change takes place in the stroke direction of the elastic sealing element.
  • a precise adjustment of the opening stroke of the metering device is possible, whereby an appropriate adjustment of gaseous medium is ensured in an anode region of a fuel cell.
  • the frame element is made of a carbon fiber reinforced plastic.
  • the elastic sealing element can be accommodated in the frame element in a simple manner and adapted to the thermal expansion of the frame element at the contact surface.
  • the armature can be moved by means of an electromagnet and is subjected to force by means of a closing spring in the direction of the valve seat.
  • the Closing spring disposed between the valve housing and the armature and received in a recess of the electromagnet.
  • the closing spring can be arranged in a simple constructive manner in the metering device.
  • valve seat is formed on a survey of the valve housing as a flat seat.
  • valve housing in the valve housing, a passage channel is formed, through which the interior is filled with gaseous medium.
  • the metering device described is preferably suitable in a fuel cell arrangement for controlling a hydrogen supply to an anode region of 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 device according to the invention with a frame member in longitudinal section
  • Fig. 2 shows the frame member of FIG. 1 in cross section, with only the
  • Fig.l shows an embodiment of the metering device 1 according to the invention in longitudinal section.
  • the metering device 2 has a valve housing 2, in which an interior space 18 is formed.
  • an electromagnet 50 is arranged, which comprises a magnetic coil 5 with a magnetic coil housing 6 and a magnetic core 7.
  • a hubbewegaji anchor 10 is disposed in the interior 18, on which a frame member 11 is arranged and fixedly connected thereto.
  • an elastic sealing element 12 is arranged in a recess 27.
  • the elastic sealing element 12 cooperates with a valve seat 14 for opening and closing a passage opening 3.
  • the sealing seat 14 is formed as a flat seat on a survey 16 of the valve housing 2.
  • a passage 4 is formed in the valve housing 2, whereby the interior 18 of the metering device 1 with gaseous medium, for example hydrogen, can be filled. Via the passage opening 3, the gaseous medium can emerge from the dosing device 1 in the direction of an anode region of a fuel cell arrangement.
  • gaseous medium for example hydrogen
  • a closing spring 8 is arranged, the force applied to the armature 10 in the direction of the valve seat 14, so that the elastic sealing element 12 is pressed in a closed position of the metering device 1 against the valve seat 14 ,
  • the armature 10 may be guided, for example, via the valve housing 2 in the metering device 1, so that tilting with respect to the sealing seat 14 are minimized.
  • the operation of the dosing device 1 is as follows:
  • the elastic sealing element 12 When the solenoid 5 is not energized, the elastic sealing element 12 is pressed against the valve seat 14 via the closing spring 8, so that no gaseous medium from the metering device 1 takes place in the direction of the passage opening 3. If the magnetic coil 5 is energized, then a magnetic force is generated on the armature 10, which is opposite to the closing force of the closing spring 8 and overcompensated. The elastic sealing element 12 lifts off from the valve seat 14. A gas flow through the metering device 1 is released.
  • the stroke of the armature 10 can be adjusted via the height of the current at the magnetic coil 5. The higher the current at the magnetic coil 5, the greater the stroke of the armature 10 and the higher the gas flow in the metering device 1, since the force of the closing spring 8 is stroke-dependent. Will the
  • Amperage reduced at the magnetic coil 5, and the stroke of the armature 10 is reduced and thus throttled the gas flow.
  • FIG. 2 shows the frame element 11 from the embodiment of the metering device 1 according to the invention Fig .l in cross section, wherein only the right half is shown.
  • the elastic sealing element 12 is arranged in the recess 27 of the frame element 11. In this case, the elastic sealing element 12 is connected to a contact surface 30 fixed to the frame member 11.
  • the frame member 11 further has in a radial direction 20 a higher coefficient of thermal expansion than in an axial direction 21 to the longitudinal axis 15 of the metering device 1.
  • elastic sealing element 12 has the same thermal expansion in a radial direction 24 as the frame element 11. If the elastic sealing element 12 nevertheless has a higher coefficient of thermal expansion in an axial direction 25 than in the radial direction 24 with respect to the longitudinal axis 15 of the dosing device 1, the contact surface 30 will and the resulting superposition of the thermal axial and radial expansion of the elastic sealing element 12 causes a reduction in the thermal expansion of the elastic sealing element 12 in the axial direction 25 with respect to the longitudinal axis 15.
  • the metering device 1 can be used, for example, in a fuel cell arrangement.
  • hydrogen can be supplied from a tank to an anode region of the fuel cell.
  • a flow cross-section of the passage opening 3 is changed such that a demand-oriented adjustment of the gas flow supplied to the fuel cell takes place continuously.
  • the metering device 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 opening 3 can be done much more precisely with simultaneous control of the anode pressure , As a result, the reliability and durability of the connected fuel cell are significantly improved, since hydrogen is always supplied in a superstoichiometric proportion. In addition, consequential damage, such as damage to a downstream catalyst can be prevented.

Landscapes

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

Abstract

L'invention concerne un dispositif de dosage (1) servant à réguler un fluide gazeux, en particulier de l'hydrogène, ce dispositif de dosage comprenant un corps de soupape (2) dans lequel est formé un espace intérieur (18). Un induit relevable (10) muni d'un élément d'étanchéité (12) élastique est disposé dans l'espace intérieur (18), lequel coopère avec un siège de soupape (14) pour ouvrir ou fermer au moins une ouverture de passage (3). Un élément formant cadre (11) est en outre disposé au niveau de l'induit (10) et relié à demeure à celui-ci. L'élément d'étanchéité (12) élastique est accueilli dans un évidement (27) de l'élément formant cadre (11) de telle sorte que la dilatation thermique de l'élément d'étanchéité (12) élastique et la dilatation thermique de l'élément formant cadre (11) au niveau d'une surface de contact (30) sont identiques. Dans une direction radiale (20) en référence à un axe longitudinal (15) du dispositif de dosage (1), l'élément formant cadre (11) présente un coefficient de dilatation thermique plus élevé que dans la direction axiale (21) en référence à l'axe longitudinal (15) du dispositif de dosage (1).
PCT/EP2018/069263 2017-09-13 2018-07-16 Dispositif de dosage servant à réguler un fluide gazeux WO2019052717A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2020513913A JP6902674B2 (ja) 2017-09-13 2018-07-16 ガス状媒体を制御するための調量装置
CN201880059499.XA CN111094816B (zh) 2017-09-13 2018-07-16 用于控制气态介质的配量装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017216132.9A DE102017216132A1 (de) 2017-09-13 2017-09-13 Dosiervorrichtung zum Steuern eines gasförmigen Mediums
DE102017216132.9 2017-09-13

Publications (1)

Publication Number Publication Date
WO2019052717A1 true WO2019052717A1 (fr) 2019-03-21

Family

ID=63036017

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2018/069263 WO2019052717A1 (fr) 2017-09-13 2018-07-16 Dispositif de dosage servant à réguler un fluide gazeux

Country Status (4)

Country Link
JP (1) JP6902674B2 (fr)
CN (1) CN111094816B (fr)
DE (1) DE102017216132A1 (fr)
WO (1) WO2019052717A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7440276B2 (ja) 2020-01-28 2024-02-28 アズビル株式会社 ダイアフラムバルブ

Citations (3)

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Publication number Priority date Publication date Assignee Title
DE102012204565A1 (de) 2012-03-22 2013-09-26 Robert Bosch Gmbh Proportionalventil mit verbessertem Dichtsitz
DE102012211575A1 (de) * 2012-07-04 2014-01-09 Robert Bosch Gmbh Ventil zum Steuern eines gasförmigen Mediums mit kostengünstigem Dichtelement
US20160223088A1 (en) * 2015-02-04 2016-08-04 Fisher Controls International Llc Thermally compensated valve trim component

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FR2845440B1 (fr) * 2002-10-03 2006-03-31 Sagem Dispositif de commande de valves
MX2010014052A (es) * 2008-06-30 2011-03-03 Fisher Controls Int Llc Valvula de control de compensacion universal y metodo de fabricacion de tal valvula de control.
US20100270487A1 (en) * 2009-04-22 2010-10-28 Eaton Corporation Electro-hydraulic poppet valve with supply pressure unloading function
JP5323659B2 (ja) * 2009-12-04 2013-10-23 愛三工業株式会社 圧力調整弁
JP5182326B2 (ja) * 2010-06-09 2013-04-17 トヨタ自動車株式会社 流量制御弁
CN102679001A (zh) * 2011-03-07 2012-09-19 全龙浩 温度可预设的多驱动自力式消防阀
US20130248751A1 (en) * 2012-03-26 2013-09-26 Fisher Controls International Llc Control valve seal assembly energized by shape memory alloys and fluid valves comprising same
DE102012019193A1 (de) * 2012-09-24 2014-03-27 Hydac Electronic Gmbh Ventil
US9395009B2 (en) * 2013-10-18 2016-07-19 Fisher Controls International Llc Fluid flow device that provides a seal by exploiting differential thermal expansion
DE102014210431A1 (de) * 2014-06-03 2015-12-17 LESER GmbH & Co. KG Sicherheitsventil
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Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012204565A1 (de) 2012-03-22 2013-09-26 Robert Bosch Gmbh Proportionalventil mit verbessertem Dichtsitz
DE102012211575A1 (de) * 2012-07-04 2014-01-09 Robert Bosch Gmbh Ventil zum Steuern eines gasförmigen Mediums mit kostengünstigem Dichtelement
US20160223088A1 (en) * 2015-02-04 2016-08-04 Fisher Controls International Llc Thermally compensated valve trim component

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7440276B2 (ja) 2020-01-28 2024-02-28 アズビル株式会社 ダイアフラムバルブ

Also Published As

Publication number Publication date
DE102017216132A1 (de) 2019-03-14
CN111094816B (zh) 2022-04-26
JP2020532695A (ja) 2020-11-12
JP6902674B2 (ja) 2021-07-14
CN111094816A (zh) 2020-05-01

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