WO2003105262A1 - Dispositif d'alimentation en combustible d'un reformeur pour un systeme de cellule electrochimique monte dans un vehicule a moteur a combustion interne - Google Patents

Dispositif d'alimentation en combustible d'un reformeur pour un systeme de cellule electrochimique monte dans un vehicule a moteur a combustion interne Download PDF

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Publication number
WO2003105262A1
WO2003105262A1 PCT/DE2002/002045 DE0202045W WO03105262A1 WO 2003105262 A1 WO2003105262 A1 WO 2003105262A1 DE 0202045 W DE0202045 W DE 0202045W WO 03105262 A1 WO03105262 A1 WO 03105262A1
Authority
WO
WIPO (PCT)
Prior art keywords
fuel
vehicle
reformer
pump
fuel pump
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.)
Ceased
Application number
PCT/DE2002/002045
Other languages
German (de)
English (en)
Inventor
Hilmar Kandler
Hansjörg Kauschke
Jochen Schönsteiner
Claudia Solera
Josef Waronitza
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.)
Webasto Thermosysteme GmbH
Original Assignee
Webasto Thermosysteme 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 Webasto Thermosysteme GmbH filed Critical Webasto Thermosysteme GmbH
Priority to AU2002315697A priority Critical patent/AU2002315697A1/en
Priority to PCT/DE2002/002045 priority patent/WO2003105262A1/fr
Priority to DE10297793T priority patent/DE10297793D2/de
Publication of WO2003105262A1 publication Critical patent/WO2003105262A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
    • F02M25/10—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding acetylene, non-waterborne hydrogen, non-airborne oxygen, or ozone
    • F02M25/12—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding acetylene, non-waterborne hydrogen, non-airborne oxygen, or ozone the apparatus having means for generating such gases
    • 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
    • H01M8/06—Combination of fuel cells with means for production of reactants or for treatment of residues
    • 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
    • H01M8/06—Combination of fuel cells with means for production of reactants or for treatment of residues
    • H01M8/0606—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants
    • H01M8/0612—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants from carbon-containing material
    • H01M8/0625—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants from carbon-containing material in a modular combined reactor/fuel cell structure
    • H01M8/0631—Reactor construction specially adapted for combination reactor/fuel cell
    • 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
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies
    • 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

  • Device for supplying fuel to a reformer for a fuel cell system in a vehicle with an internal combustion engine.
  • the present invention relates to a device for supplying fuel to a reformer for a fuel cell system in a vehicle with an internal combustion engine according to the preamble of claim 1.
  • the reformer is to be operated with the same fuel as the engine of the vehicle.
  • the fuel supply is usually via a metering pump that is controlled by the additional device and is integrated in a separate fuel line between the additional device and the tank of the vehicle.
  • the fuel is withdrawn from the tank via a separate fuel extractor.
  • An alternative way of supplying fuel to conventional fuel-operated vehicle accessories is to take fuel from the return line of the fuel in the engine compartment of the motor vehicle in which the accessory is installed.
  • the withdrawal from the return line can take place directly or with the interposition of a buffer.
  • Such an arrangement results e.g. from document EP 0 718 487 A2.
  • the fuel In long fuel lines from the tank to the additional device, the fuel also fumes at ambient temperatures from approx. 25 ° C and leads to discontinuities in the fuel delivery and thus discontinuities in the mixture formation during combustion or reforming reaction. These lead to problems with the start and stationary operation of the additional device.
  • Fuel cell systems serve as an additional energy source in a vehicle for providing electrical energy.
  • the actual fuel cell is preceded by the reformer to get out of a easily manageable fuel such as gasoline or diesel to produce a hydrogen-containing gas with which the fuel cell can be fed.
  • Devices that comprise a complete fuel cell system and that can be used as an additional energy supply in a vehicle are also referred to as APU (Auxiliary Power Unit).
  • the reformer forms an assembly within the APU.
  • reaction equation for the partial oxidation of gasoline or diesel is:
  • This exothermic reaction can be activated, for example, by copper or noble metal catalysts.
  • the catalysts used can be used to achieve a hydrogen-containing reformate that meets the requirements for the operation of a fuel cell if the corresponding boundary conditions for the mixture formation process are observed.
  • the reforming reaction requires compliance with a certain fuel mass flow in order to achieve a fuel / air ratio which is required within narrow limits, since otherwise the reaction leads to an insufficient reformate and the operational safety of the reformer is not guaranteed due to soot formation.
  • the risk of outgassing of the fuel line drops drastically.
  • Outgassed fuel lines can be refilled immediately without the risk of a reaction interruption in the reformer.
  • the reformer's fuel supply is decoupled from the pressure of the vehicle's fuel line.
  • the internal metering pump of the device also serves to shut off the fuel line from the atmosphere.
  • the device can be designed such that the pressure control valve and the intermediate fuel storage device are designed as a separate component outside the reformer, whereas the metering pump is arranged in the reformer.
  • the reformer can be integrated in an APU system or form a separate device.
  • the pressure control valve, the intermediate fuel store and the fuel pump are arranged outside the reformer or the APU system.
  • the device can be designed such that the devices for controlling the fuel pump of the vehicle are provided with devices for integration into a bus system, such as a CAN bus, of the vehicle.
  • the device can alternatively also be designed such that the device for controlling the fuel pump of the vehicle is provided with devices for direct wiring to the fuel pump of the vehicle.
  • the device for controlling the fuel pump of the vehicle is preferably a control unit which is in communication with a control unit of the fuel pump of the vehicle.
  • the device for controlling the fuel pump of the vehicle can be designed for intermittent or continuous control of the fuel pump of the vehicle.
  • the device is also preferably designed such that the pressure control valve is designed according to the principle of a pressure compensator.
  • the pressure control valve can also be designed as a valve with a pressure sensor. In this way, the maximum fuel pressure in the intermediate store of the device can be set to a value with which the metering pump of the device can still dose precisely enough.
  • the delivery and metering of the fuel to the additional device is finally realized by the preferably built-in metering pump.
  • FIG. 1 shows the schematic representation of the training
  • FIG. 2 is a schematic representation of a variant of the embodiment of Figure 1 and FIG. 3 shows a schematic illustration of a fuel cell arrangement with a fuel cell and a reformer.
  • FIG. 1 shows the schematic representation of the design, arrangement and integration of an embodiment of the device for supplying fuel to a reformer for a fuel cell system in a vehicle.
  • a reformer 2 can be seen, which in the embodiment shown schematically has a reaction chamber 4 and which is preceded by a device for supplying fuel. This is connected to a fuel pressure line system 8 of the engine 9 supplied by a fuel pump 6 of the vehicle via a line 10 and has a device 12 for controlling the fuel pump 6 of the vehicle.
  • the device also has a pressure control valve 14, a subsequent fuel intermediate storage 16 and a metering pump 18 connected to the fuel intermediate storage 16 for supplying the reformer 2 with fuel.
  • the pressure control valve 14 which can be located directly behind the branch point from the main fuel line 8, regulates the high operating pressure of the fuel pump 6 to a value that is compatible with the reformer 2.
  • This reduced pressure acts on the intermediate store 16, which can therefore be correspondingly less solid and therefore lighter in construction than in the case of a direct connection to the fuel line 8.
  • the metering pump 18 downstream of the intermediate store need not be a high-pressure pump, since it only has to apply a certain atomizing pressure. otherwise injected essentially against atmospheric pressure. It can therefore be any suitable continuously operating pump, for example a centrifugal pump, which ensures a constant supply of fuel to the reaction chamber of the reformer, or else a quasi-continuously operating intermittent pump (reciprocating piston pump). In the embodiment shown in FIG.
  • the device 12 for controlling the fuel pump 6 of the vehicle is provided with a device (not shown) for integration into a bus system 20, such as a CAN bus of the vehicle.
  • the device 12 for controlling the fuel pump 6 of the vehicle can also be provided with a device for direct wiring to the fuel pump 6 of the vehicle.
  • the device 12 for controlling the fuel pump 6 of the vehicle is a control device which is in communication with a control device 22 of the fuel pump 6 of the vehicle via the bus system 20.
  • the control unit 12 of the reformer 2 is used to logically link the system components of the reformer 2 with one another and to integrate them into the vehicle system.
  • the control unit 22, which controls the fuel pump 6, among other things, is used for integration on the basis of the bus system 20. Depending on the design, this could be dispensed with if the fuel pump 6 in the vehicle tank 24 is controlled directly.
  • the control device 12 for controlling the fuel pump of the vehicle is designed for intermittent or continuous activation of the fuel pump 6 of the vehicle.
  • the pressure control valve 14 of the embodiment according to FIG. 1 is designed here in accordance with the principle of a pressure compensator.
  • the pressure control valve can also be designed as a valve with a pressure sensor (not shown).
  • the maximum fuel pressure in the intermediate storage 16 of the device can be set to a value with which the metering pump 18 of the device can still dose precisely enough for efficient operation of the reformer 2.
  • FIG. 2 shows the schematic representation of a variant of the embodiment according to FIG. The metering pump 18, however, is arranged in the reformer 2.
  • FIG. 3 shows an arrangement with a reformer 2, as has already been described with reference to FIGS. 1 and 2, and a fuel cell 20.
  • fuel is fed to the reformer 2 via a line 10 as well as oxidizing gas 26.
  • the reformate 30 obtained in the reformer 2 and containing hydrogen is either fed directly to the fuel cell 2 or processed in further steps and then fed to the fuel cell.
  • the fuel cell 28 is also shown schematically and has an anode 32, a cathode 34 and an electrolyte 36.
  • the reformate 30 is supplied on the anode side, while air 38 is supplied on the cathode side.
  • the generated current 40 can be tapped directly.
  • the anode exhaust gas 31 is afterburned together with the cathode exhaust air 39 emerging at the cathode 34 in an afterburner 42 before it escapes into the environment as exhaust gas 37. This is necessary because the reformate 30 is not fully implemented on the anode side.
  • the cathode exhaust air supplies the oxygen for combustion in the afterburner 42.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Fuel Cell (AREA)

Abstract

L'invention concerne un dispositif d'alimentation en combustible d'un reformeur (2) pour un système de cellule électrochimique, qui est peut être relié à une conduite principale d'amenée en combustible (8) alimentée par une pompe à combustible (6) du véhicule et qui présente un dispositif (12) pour commander la pompe à combustible (6) du véhicule. Le dispositif de l'invention est caractérisé en ce qu'il présente une soupape de régulation de pression (14) placée avant un réservoir intermédiaire de carburant (16) et une pompe doseuse (18) reliée à ce dernier.
PCT/DE2002/002045 2002-06-05 2002-06-05 Dispositif d'alimentation en combustible d'un reformeur pour un systeme de cellule electrochimique monte dans un vehicule a moteur a combustion interne Ceased WO2003105262A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU2002315697A AU2002315697A1 (en) 2002-06-05 2002-06-05 Device for supplying fuel to a reformer for a fuel cell system in a vehicle comprising an internal combustion engine
PCT/DE2002/002045 WO2003105262A1 (fr) 2002-06-05 2002-06-05 Dispositif d'alimentation en combustible d'un reformeur pour un systeme de cellule electrochimique monte dans un vehicule a moteur a combustion interne
DE10297793T DE10297793D2 (de) 2002-06-05 2002-06-05 Vorrichtung zur Brennstoffversorgung eines Reformers für ein Brennstoffzellensystem in einem Fahrzeug mit Verbrennungskraftmaschine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/DE2002/002045 WO2003105262A1 (fr) 2002-06-05 2002-06-05 Dispositif d'alimentation en combustible d'un reformeur pour un systeme de cellule electrochimique monte dans un vehicule a moteur a combustion interne

Publications (1)

Publication Number Publication Date
WO2003105262A1 true WO2003105262A1 (fr) 2003-12-18

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PCT/DE2002/002045 Ceased WO2003105262A1 (fr) 2002-06-05 2002-06-05 Dispositif d'alimentation en combustible d'un reformeur pour un systeme de cellule electrochimique monte dans un vehicule a moteur a combustion interne

Country Status (3)

Country Link
AU (1) AU2002315697A1 (fr)
DE (1) DE10297793D2 (fr)
WO (1) WO2003105262A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1847413A3 (fr) * 2006-04-10 2007-12-05 Bombardier Transportation GmbH Système d'alimentation en carburant pour véhicule
WO2008080375A1 (fr) * 2007-01-05 2008-07-10 Enerday Gmbh Alimentation en combustible sans bulle d'air, notamment pour un système de pile à combustible

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3643806A1 (de) * 1986-12-22 1988-07-07 Webasto Ag Fahrzeugtechnik Brennstoffversorgungseinrichtung fuer motorunabhaengiges fahrzeugheizgeraet
EP0718487A2 (fr) * 1994-12-24 1996-06-26 Firma J. Eberspächer Dispositif de distribution de combustible dans un véhicule automobile
US5732880A (en) * 1994-08-18 1998-03-31 J. Eberspacher Gmbh & Co. Heater for a vehicle powered by an internal-combustion engine
EP0988164A1 (fr) * 1997-06-11 2000-03-29 WEBASTO THERMOSYSTEME GmbH Appareil de chauffage
US6280867B1 (en) * 1997-12-05 2001-08-28 Griff Consulting, Inc. Apparatus for pumping a fluid in a fuel cell system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3643806A1 (de) * 1986-12-22 1988-07-07 Webasto Ag Fahrzeugtechnik Brennstoffversorgungseinrichtung fuer motorunabhaengiges fahrzeugheizgeraet
US5732880A (en) * 1994-08-18 1998-03-31 J. Eberspacher Gmbh & Co. Heater for a vehicle powered by an internal-combustion engine
EP0718487A2 (fr) * 1994-12-24 1996-06-26 Firma J. Eberspächer Dispositif de distribution de combustible dans un véhicule automobile
EP0988164A1 (fr) * 1997-06-11 2000-03-29 WEBASTO THERMOSYSTEME GmbH Appareil de chauffage
US6280867B1 (en) * 1997-12-05 2001-08-28 Griff Consulting, Inc. Apparatus for pumping a fluid in a fuel cell system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1847413A3 (fr) * 2006-04-10 2007-12-05 Bombardier Transportation GmbH Système d'alimentation en carburant pour véhicule
WO2008080375A1 (fr) * 2007-01-05 2008-07-10 Enerday Gmbh Alimentation en combustible sans bulle d'air, notamment pour un système de pile à combustible

Also Published As

Publication number Publication date
DE10297793D2 (de) 2005-05-25
AU2002315697A1 (en) 2003-12-22

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