US20060216155A1 - Ejector - Google Patents

Ejector Download PDF

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Publication number
US20060216155A1
US20060216155A1 US11/391,169 US39116906A US2006216155A1 US 20060216155 A1 US20060216155 A1 US 20060216155A1 US 39116906 A US39116906 A US 39116906A US 2006216155 A1 US2006216155 A1 US 2006216155A1
Authority
US
United States
Prior art keywords
auxiliary
stream
gas
ejector
needle
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.)
Abandoned
Application number
US11/391,169
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English (en)
Inventor
Kazunori Fukuma
Mitsuru Kai
Satoshi Inoue
Kouji Miyano
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.)
Honda Motor Co Ltd
Original Assignee
Honda Motor Co Ltd
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 Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Assigned to HONDA MOTOR CO., LTD. reassignment HONDA MOTOR CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: FUKUMA, KAZUNORI, INOUE, SATOSHI, KAI, MITSURU, MIYANO, KOUJI
Publication of US20060216155A1 publication Critical patent/US20060216155A1/en
Priority to US13/692,505 priority Critical patent/US20130095397A1/en
Abandoned legal-status Critical Current

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Classifications

    • 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
    • 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
    • H01M8/04097—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with recycling of the reactants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
    • B01F25/3124—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof characterised by the place of introduction of the main flow
    • B01F25/31242—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof characterised by the place of introduction of the main flow the main flow being injected in the central area of the venturi, creating an aspiration in the circumferential part of the conduit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
    • B01F2101/59—Mixing reaction ingredients for fuel cells
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
    • B01F25/3125—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof characteristics of the Venturi parts
    • B01F25/31251—Throats
    • B01F25/312511—Adjustable Venturi throat
    • 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
    • H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
    • H01M8/249—Grouping of fuel cells, e.g. stacking of fuel cells comprising two or more groupings of fuel cells, e.g. modular assemblies
    • 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 present invention relates to an ejector which has a configuration in which an auxiliary-stream gas is made to join a drive-stream gas for discharge the drive-stream gas and the auxiliary-stream gas therefrom.
  • the ejector is such as to have a construction in which circulating hydrogen is drawn in for re-supply by making use of negative pressure produced by injecting a high-pressure fluid from a jet nozzle.
  • the circulating capability is limited by the diameter of the jet nozzle, and hence, there occurs a case where the ejector is not suitable for a fuel cell system having a large flow rate range such as one for a motor vehicle.
  • JP-A-8-338398 proposes a technique in which the opening area of an injection nozzle is adjusted by axially moving a cylindrical adjusting rod (a needle).
  • a needle set in a nozzle is caused to deviate minutely from an axial direction thereof.
  • a configuration such as seen in the aforementioned technique is adopted for the ejector like this in which an auxiliary-stream gas is caused to simply hit the needle, there is caused a problem in the drawing force and drawing amount of the auxiliary stream.
  • FIGS. 4 and 5 are drawings which illustrate a main part of a conventional ejector to describe the problem inherent therein.
  • a distal end portion of a needle 33 is displaced in a direction in which the distal end portion moves away from an auxiliary-stream gas (namely, in a direction which follows an arrow A in FIG. 4 )
  • an opening area of a location of a distal end portion of a nozzle 32 which lies near the auxiliary-stream gas namely, a lower region of the distal end portion of the nozzle 32
  • a drawing force exerted on the auxiliary-stream gas by a driven steam of gas is increased, whereby the flow rate of the auxiliary-stream gas is increased excessively (refer to FIG. 4 ).
  • an object of the invention is to provide an ejector which can control the flow rate and flow velocity of the auxiliary-stream gas with good accuracy.
  • an ejector comprising:
  • a nozzle portion (for example, a nozzle 32 in an embodiment which will be described later on) having openings provided at a distal end and a proximal end thereof, respectively, for injecting drive-stream gas;
  • a diffuser portion (for example, a diffuser 31 in the embodiment which will be described later on) provided on a distal end side of the nozzle portion for drawing in auxiliary gas by negative pressure which is generated in the drive-stream gas by injection from the nozzle portion so as to join the auxiliary-stream gas together with the drive-stream and discharge the drive-stream gas and the auxiliary gas;
  • a needle for example, a needle 33 in the embodiment which will be described later on
  • a needle 33 for example, a needle 33 in the embodiment which will be described later on
  • a drive unit for example, a solenoid 11 in the embodiment for moving the needle axially;
  • an auxiliary stream introducing portion (for example, an auxiliary-stream gas introducing portion 13 in the embodiment) comprising at least two openings for introducing the auxiliary-stream gas into the diffuser portion therefrom.
  • the auxiliary-stream gas is introduced from at least two openings in the auxiliary stream introducing portion, the auxiliary-stream gas is allowed to be introduced from a plurality of directions relative to the needle, and as a result, the pressure exerted on the needle from the auxiliary-stream gas can be dispersed relative to the axial direction of the needle. Consequently, deviations in drawing force and drawing amount triggered by the deviation of the needle from the axial direction thereof can be suppressed, whereby since the opening area and opening region of the nozzle portion can be maintained in originally designed states, the drawing force and drawing amount of the auxiliary-stream gas can be controlled with good accuracy without being affected by the deviation of the needle from the axial direction thereof.
  • the ejector further comprising a buffer chamber provided on an upstream side of the auxiliary stream introducing portion,
  • auxiliary-stream gas is adopted to be introduced into the plurality of openings from the buffer chamber.
  • auxiliary-stream gas can be distributed to each of the openings via the buffer chamber without having to have a configuration in which piping is individually connected to each auxiliary stream introducing portion, auxiliary-stream gas can easily be supplied to the diffuser portion from multiple directions.
  • the ejector is used on a fuel cell system.
  • the drawing force and drawing amount of auxiliary-stream gas can be controlled with good accuracy regardless of the shaft position of the needle, an easy and fine control of the flow of fuel cell system gas can be implemented, whereby the power generation stability of the fuel cell can be enhanced.
  • the openings of the auxiliary stream introducing portion are arranged along with a circumferential direction of the diffuser portion.
  • the openings of the auxiliary stream introducing portion are arranged in point symmetry manner relative to a central axis of the needle.
  • the drawing force and drawing amount of the auxiliary-stream gas can be controlled with good accuracy.
  • the auxiliary-stream gas can easily be supplied to the diffuser portion from multiple directions.
  • the power generation stability of the fuel cell can be enhanced.
  • FIG. 1 is a drawing which illustrates the configuration of a fuel cell system which includes a variable flow rate ejector according to an embodiment of the invention
  • FIG. 2 is a side sectional view of the variable flow rate ejector according to the embodiment of the invention.
  • FIG. 3 is an explanatory drawing which illustrates the flow of auxiliary-stream gas of the variable flow rate ejector according to the embodiment of the invention
  • FIG. 4 is a drawing depicting a main part of a conventional ejector which illustrates a problem inherent therein;
  • FIG. 5 is a drawing depicting the main part of the conventional ejector which illustrates a problem inherent therein.
  • FIG. 1 is a drawing which shows the configuration of a fuel cell system 20 including a variable flow rate ejector 10 according an embodiment of the invention
  • FIG. 2 is a side sectional view of the variable flow rate ejector 10 according to the embodiment of the invention.
  • the variable flow rate ejector 10 according to the embodiment of the invention is provided in the fuel cell system 20 which is installed on a vehicle such as an electric vehicle, and this fuel cell system 20 is made up of the variable flow rate ejector 10 , fuel cells 21 , an oxidant supply unit 24 , a heat exchanger 25 and a water separator 26 .
  • the fuel cell 21 is made up of a stack which includes a plurality of stacked cells, each formed by holding a solid polymer electrolyte membrane, which is, for example, a solid polymer ion exchange membrane by an anode and a cathode from both sides thereof and includes a fuel electrode to which, for example, hydrogen is supplied as a fuel; and an air electrode to which, for example, air containing oxygen is supplied as an oxidant.
  • a solid polymer electrolyte membrane which is, for example, a solid polymer ion exchange membrane by an anode and a cathode from both sides thereof and includes a fuel electrode to which, for example, hydrogen is supplied as a fuel; and an air electrode to which, for example, air containing oxygen is supplied as an oxidant.
  • An air supply port 21 a into which air is supplied from the oxidant supply unit 24 and an air discharge port 21 b having provided therein an air discharge valve 28 for discharging air or the like in the air electrode to the outside are provided on the air electrode.
  • a fuel supply port 21 c to which hydrogen is supplied and a fuel discharge port 21 d for discharging hydrogen or the like in the fuel electrode to the outside are provided on the fuel electrode.
  • the oxidant supply unit 24 is made up of, for example, a compressor and is controlled in response to a load applied to the fuel cell 21 , an input signal from an accelerator pedal (not shown) and the like, so as to supply air to the air electrode of the fuel cell 21 via the heat exchanger 25 .
  • the heat exchanger 25 cools air sent from the oxidant supply unit 24 down to a predetermined temperature for supply to the fuel cell 21 .
  • Hydrogen which functions as fuel, is supplied from the fuel supply port 21 c to the fuel electrode of the fuel cell 21 via the variable flow rate ejector 10 . Furthermore, a discharged fuel which is discharged from the fuel discharge portion 21 d of the fuel cell 21 is introduced into the variable flow rate ejector 10 through a check valve 29 after water is removed therefrom at the water separator 26 , and as will be described later on, fuel and the discharged fuel discharged from the fuel cell 21 are made to join or mix with each other for supply to the fuel cell 21 . Note that water separated from the discharged fuel at the water separator 26 is discharged to the outside by opening a drain valve 30 .
  • variable flow rate ejector 10 is such as to make a discharged fuel circulated from the fuel cell 21 join a stream of fuel gas supplied from the fuel supply unit 22 by making use of the stream of fuel gas so supplied and to control the flow rate of fuels supplied to the fuel cell 21 based on an air pressure Pair on the air electrode side of the fuel cell 21 which is detected by a pressure sensor 7 and a fuel pressure Pfuel on the fuel electrode side of the fuel cell 21 which is detected by a pressure sensor 6 when receiving a control instruction from an ECU 5 and is configured to include, as shown in FIG. 2 , a diffuser 31 , a nozzle 32 and a needle 33 .
  • a fluid passageway 43 is formed in the diffuser 31 in such a manner as to penetrate axially the diffuser 31 on a downstream side thereof.
  • the fluid passageway 43 has a throat portion 44 where an inside diameter thereof becomes minimum at a position along the length thereof, and a throttle portion 45 is provided upstream of the throat portion 44 which has an inner circumferential surface which diametrically contracts gradually and continuously as it proceeds downstream, and a diametrically expanding portion 46 is provided downstream of the throat portion 44 which has an inner circumferential surface which diametrically expands gradually and continuously as it proceeds downstream.
  • the nozzle 32 is provided in an interior of the diffuser 31 in such a manner as to protrude coaxially with the diffuser 31 towards an upstream side of the fluid passageway 43 .
  • a fluid passageway 51 is formed in an interior of the nozzle 32 in such a manner as to extend along an axial direction of the nozzle 32 .
  • An inner circumferential surface 32 A which constitutes a wall surface of the fluid passageway 51 , is formed at a distal end portion of the nozzle 32 in such a manner as to diametrically contract gradually and continuously towards a distal end side thereof (a downstream side of the fluid passageway 51 ).
  • a downstream end of the fluid passageway 51 continues to an opening 52 which opens at a distal end face 32 b of the nozzle 32 , and an upstream end of the fluid passageway 51 is blocked up by a diaphragm (not shown).
  • a fuel supply pipe (not shown) is connected to the fluid passageway 51 for introducing therein to fuel supplied from the fuel supply unit 22 .
  • the needle 33 is inserted into the interior of the nozzle 32 coaxially with the nozzle 32 , and the needle 33 is held by a needle holding guide (not shown) in such a manner as to slide in an axial direction which is coaxial with the nozzle 32 .
  • a needle holding guide (not shown)
  • an outer circumferential surface of the needle 33 is formed at a distal end portion of the needle 33 in such a manner as to diametrically contract gradually and continuously as it extends towards a distal end side thereof. Namely, when the needle 33 slides in the axial direction in the interior of the nozzle 32 , a protruding amount of the distal end portion of the needle 33 which protrudes from the opening 52 of the nozzle 32 is changed.
  • an opening area of a gap between the inner circumferential surface of the nozzle 32 and the outer circumferential surface of the needle 33 is changed, whereby the flow rate of fuel that is injected into an auxiliary stream chamber 48 from the opening 52 of the nozzle 32 can be adjusted.
  • the needle holding guide which holds the needle 33 in such a manner as to slide relative to the axial direction, is formed into, for example, an annular disc shape having an appropriate through hole through which fluid can pass, and the needle 33 is inserted through a needle insertion hole which penetrates the annular disc in the axial direction.
  • the needle 33 is connected electrically and mechanically to a solenoid 11 , so that the needle 33 is configured to be moved back and forth in the axial direction in response to ON/OFF operations of the solenoid 11 .
  • an auxiliary-stream gas introducing portion 13 having a plurality of auxiliary-stream gas introducing holes 12 is formed in the auxiliary stream chamber 48 at a location which faces the outer circumferential surface of the nozzle 32 .
  • This auxiliary-stream gas introducing portion 13 is connected to an auxiliary stream introducing pipe 49 , which communicates with a fuel off-gas discharge path, via a buffer chamber 14 which is formed on an outer circumferential side of the auxiliary-stream gas introducing portion 13 .
  • pluralities of the auxiliary stream gas introducing holes 12 are arranged along with a circumferential direction of the diffuser 31 .
  • FIG. 3 is an explanatory drawing which illustrates the flow of an auxiliary-stream gas in the variable flow rate ejector according the embodiment of the invention.
  • variable flow rate ejector 10 a discharged fuel gas from the fuel cell 21 is supplied therein to from the auxiliary stream introducing pipe 49 through the plurality of auxiliary-stream gas introducing holes 12 possessed by the auxiliary-stream gas introducing portion 13 via the buffer chamber 14 .
  • a fuel is supplied into the fluid passageway 51 in the interior of the nozzle 32 from the fuel supply pipe (not shown). Then, the fuel so supplied is injected from the opening 52 of the nozzle 32 , that is, the gap between the nozzle 32 and the needle 33 towards the fluid passageway 43 of the diffuser 31 .
  • the auxiliary-stream gas in this case, the discharged fuel gas
  • the auxiliary-stream gas is introduced individually from the plurality of auxiliary-stream gas introducing holes 12 .
  • the auxiliary-stream gas is introduced from a plurality of directions relative to the needle 33 .
  • a pressure that the needle 33 receives from the auxiliary-stream gas can be dispersed relative to the axial direction.
  • the auxiliary-stream gas can be distributed individually to the plurality of auxiliary-stream gas introducing holes 12 via the buffer chamber 14 , the auxiliary-stream gas can easily be supplied to the diffuser 31 from multiple directions.
  • the auxiliary-stream gas introducing holes 12 are disposed in point symmetry relative to a central axis of the needle 33 , whereby the auxiliary-stream gas is dispersed, so as to hit the needle 33 not only from the multiple direction but also in substantially the same amount, thereby making it possible to obtain an advantage where the deviation in position of the needle 33 can be suppressed.
  • the advantage can be achieved by arranging the auxiliary-stream gas introducing holes 12 along with the circumferential direction of the diffuser 31 , as described above.
  • the ejector 10 by applying the ejector 10 to the fuel cell system, an easy and fine control of the stream of fuel cell system gas can be implemented, whereby the power generation stability of the fuel cell can be enhanced. Note that a space for the water separator 26 or the like is secured upstream of the ejector 10 , even in the event that the buffer chamber 14 is configured to be provided in the ejector 10 , an effect resulting from a reduction in sucking amount can be suppressed.
  • the control of drawing force and drawing amount of auxiliary-stream gas can be implemented with good accuracy.
  • the contents of the invention are, of course, not limited to the embodiment.
  • the ejector is described as being applied to the fuel cell system, the ejector can be applied to other systems.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Sustainable Energy (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Fuel Cell (AREA)
  • Jet Pumps And Other Pumps (AREA)
US11/391,169 2005-03-28 2006-03-27 Ejector Abandoned US20060216155A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US13/692,505 US20130095397A1 (en) 2005-03-28 2012-12-03 Ejector

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JPP.2005-092325 2005-03-28
JP2005092325A JP4860165B2 (ja) 2005-03-28 2005-03-28 エゼクタ

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US13/692,505 Abandoned US20130095397A1 (en) 2005-03-28 2012-12-03 Ejector

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008077445A1 (en) * 2006-12-22 2008-07-03 Daimler Ag Device for reducing pressure variations in a system through which gas flows
US20090155092A1 (en) * 2007-12-12 2009-06-18 Honda Motor Co., Ltd. Fuel cell system
GB2488125A (en) * 2011-02-16 2012-08-22 Shane Richard Wootton Injection Apparatus
CN110132070A (zh) * 2019-04-24 2019-08-16 中国人民解放军陆军工程大学 一种火炮击针突出量检测装置与火炮击针突出量检测方法
WO2021238899A1 (zh) * 2020-05-29 2021-12-02 中国石油天然气集团有限公司 一种用于旋转导向井下解卡的射流调节方法
WO2022120401A1 (de) * 2020-12-11 2022-06-16 Avl List Gmbh Ejektor für ein brennstoffzellensystem

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5017925B2 (ja) * 2006-05-19 2012-09-05 株式会社デンソー エジェクタ、蒸発器ユニットおよびエジェクタ式冷凍サイクル
KR100773345B1 (ko) 2006-10-31 2007-11-05 주식회사 로템 가변형 수소 재순환 이젝터
JP5065866B2 (ja) * 2007-11-27 2012-11-07 本田技研工業株式会社 燃料電池システム
KR20150070882A (ko) * 2013-12-17 2015-06-25 현대자동차주식회사 이젝터를 구비한 연료전지 시스템

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1787632A (en) * 1928-10-20 1931-01-06 William A J Kreager Burner
US4434766A (en) * 1982-05-07 1984-03-06 Toyota Jidosha Kabushiki Kaisha Air assist device of fuel injection type internal combustion engine
US6858340B2 (en) * 2001-02-02 2005-02-22 Honda Giken Kogyo Kabushiki Kaisha Variable flow-rate ejector and fuel cell system having the same

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6706438B2 (en) * 2000-08-10 2004-03-16 Honda Giken Kogyo Kabushiki Kaisha Fluid supply device for fuel cell
JP2002153741A (ja) * 2000-11-21 2002-05-28 Masao Ukisho 流体混合具及びそれを用いた流体混合ポンプ
JP4148014B2 (ja) * 2002-07-10 2008-09-10 株式会社デンソー 燃料電池システム

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1787632A (en) * 1928-10-20 1931-01-06 William A J Kreager Burner
US4434766A (en) * 1982-05-07 1984-03-06 Toyota Jidosha Kabushiki Kaisha Air assist device of fuel injection type internal combustion engine
US6858340B2 (en) * 2001-02-02 2005-02-22 Honda Giken Kogyo Kabushiki Kaisha Variable flow-rate ejector and fuel cell system having the same

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008077445A1 (en) * 2006-12-22 2008-07-03 Daimler Ag Device for reducing pressure variations in a system through which gas flows
US20090155092A1 (en) * 2007-12-12 2009-06-18 Honda Motor Co., Ltd. Fuel cell system
US8017275B2 (en) * 2007-12-12 2011-09-13 Honda Motor Co., Ltd. Fuel cell system
GB2488125A (en) * 2011-02-16 2012-08-22 Shane Richard Wootton Injection Apparatus
CN110132070A (zh) * 2019-04-24 2019-08-16 中国人民解放军陆军工程大学 一种火炮击针突出量检测装置与火炮击针突出量检测方法
WO2021238899A1 (zh) * 2020-05-29 2021-12-02 中国石油天然气集团有限公司 一种用于旋转导向井下解卡的射流调节方法
WO2022120401A1 (de) * 2020-12-11 2022-06-16 Avl List Gmbh Ejektor für ein brennstoffzellensystem

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JP4860165B2 (ja) 2012-01-25
US20130095397A1 (en) 2013-04-18
JP2006274854A (ja) 2006-10-12

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