EP3918652A1 - Groupe de refoulement pour un circuit d'anodes d'un système de piles à combustible servant à refouler un milieu gazeux, et système de piles à combustible - Google Patents

Groupe de refoulement pour un circuit d'anodes d'un système de piles à combustible servant à refouler un milieu gazeux, et système de piles à combustible

Info

Publication number
EP3918652A1
EP3918652A1 EP20700436.7A EP20700436A EP3918652A1 EP 3918652 A1 EP3918652 A1 EP 3918652A1 EP 20700436 A EP20700436 A EP 20700436A EP 3918652 A1 EP3918652 A1 EP 3918652A1
Authority
EP
European Patent Office
Prior art keywords
fuel cell
cell system
separator
recirculation blower
delivery unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP20700436.7A
Other languages
German (de)
English (en)
Inventor
Armin Merz
Alexander Hero
Peter Altermann
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 EP3918652A1 publication Critical patent/EP3918652A1/fr
Pending 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
    • H01M8/04089—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
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/24—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by centrifugal force
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D23/00—Other rotary non-positive-displacement pumps
    • F04D23/008—Regenerative pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
    • F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
    • F04D29/706—Humidity separation
    • 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
    • F04F5/24—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 liquids, e.g. containing solids, or liquids and elastic fluids
    • 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
    • H01M8/04111—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants using a compressor turbine assembly
    • 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
    • H01M8/04119—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying
    • H01M8/04156—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying with product water removal
    • 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
    • H01M8/04119—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying
    • H01M8/04156—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying with product water removal
    • H01M8/04164—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying with product water removal by condensers, gas-liquid separators or filters
    • 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
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
    • H01M8/0438—Pressure; Ambient pressure; Flow
    • 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
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
    • H01M8/04746—Pressure; Flow
    • H01M8/04753—Pressure; Flow of fuel cell 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
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
    • H01M8/04746—Pressure; Flow
    • H01M8/04761—Pressure; Flow of fuel cell exhausts
    • 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
    • H01M8/0662—Treatment of gaseous reactants or gaseous residues, e.g. cleaning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2256/00—Main component in the product gas stream after treatment
    • B01D2256/16—Hydrogen
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/10—Single element gases other than halogens
    • B01D2257/102—Nitrogen
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/80—Water
    • 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
    • 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 a delivery unit for an anode circuit of a fuel cell system for delivering a gaseous medium, in particular special hydrogen, which is provided in particular for use in vehicles with a fuel cell drive.
  • the invention further relates to a fuel cell system with such a delivery unit.
  • gaseous fuels will also play an increasing role in the automotive sector in the future.
  • Hydrogen gas flows must be controlled, particularly in vehicles with a fuel cell drive.
  • the gas flows are no longer controlled discontinuously, as in the injection of liquid fuel, but rather the gas is removed from at least one high-pressure tank and directed to the delivery unit via an inflow line of a medium-pressure line system.
  • This delivery unit leads the gas to a fuel cell via a connecting line of a low-pressure line system.
  • a delivery unit for a fuel cell system for the delivery and / or recirculation of a gaseous medium is known, with a recirculation blower and a jet pump driven by a propellant jet of a pressurized gaseous medium, with an anode outlet of a fuel cell an input of the delivery unit is fluidly connected and an outlet of the delivery unit is fluidly connected to an anode input of the fuel cell.
  • DE 10 2014 105 995 A1 discloses a fuel cell system for conveying and / or recirculating a gaseous medium in which the pressurized gaseous medium is fed to the jet pump by means of a metering valve.
  • the delivery unit known from DE 10 2011 105 710 B4 and the fuel cell system known from DE 10 2014 105 995 Al can each have certain disadvantages.
  • the components of the delivery unit, in particular the recirculation blower and / or the jet pump and / or a metering valve, are at least partially connected to one another and / or to the fuel cell by means of fluidic connections in the form of pipelines and optionally an additional distributor plate with channels in the interior.
  • the components are at least partially available as separate assemblies that are connected to one another by means of pipelines.
  • a delivery unit for a fuel cell system for delivering and / or recirculating a gaseous medium, in particular hydrogen, the hydrogen being referred to below as H2.
  • the invention further relates to a fuel cell system with such a delivery unit.
  • the conveying unit comprises at least one recirculation blower, the conveying unit being at least indirectly fluidically connected to the outlet of an anode region by means of at least one connecting line, and the conveying unit being fluidly connected to the inlet of the anode region by means of a further connecting line.
  • the delivery unit is designed such that the delivery unit in addition to the component recirculation blower as a further construction parts has a jet pump and a metering valve, the flow contours of the components for the gaseous medium and / or the components recirculation fan, jet pump and metering valve at least almost are completely arranged in a common housing.
  • the advantage can be achieved that a direct and as short as possible flow line between the components of the delivery unit are established, in particular between the recirculation blower and / or the jet pump and / or the Doier valve.
  • the number of flow deflections and / or changes in a flow direction of the gaseous medium in the conveying unit can be reduced to the smallest possible number, since the components are positioned in the common housing and thus at a short distance from one another.
  • the inflow openings and the outflow openings of the components of the recirculation blower and / or jet pump and / or metering valve are arranged with respect to one another in the common housing in such a way that the flow connections are as short as possible and the flow deflections between the components are as small as possible.
  • the flow contours are at least almost completely in the common housing and there is at least almost no need for external piping and / or external distributor plates.
  • Leakages due to a leaky piping system can thus be reduced, which reduces the probability of failure of the delivery unit and / or fuel cell system decreased.
  • the friction losses and / or flow losses in the delivery unit and / or fuel cell system can thus be reduced, as a result of which the efficiency of the delivery unit and / or the fuel cell system can be improved.
  • the arrangement of the flow contours of the components and / or the components in the common housing ensures in an advantageous manner that a total surface of the delivery unit, which in particular comprises the components of the recirculation blower, jet pump and metering valve, in relation to the installation space and / or geometric volume can be reduced.
  • the advantage can thus be achieved that rapid cooling of the components of the recirculation blower and / or jet pump and / or metering valve, in particular when the entire vehicle is idle for a long time, is prevented, which leads to a reduction and / or avoidance of the formation of ice bridges.
  • the effect is advantageously used that the components recirculation blower and / or jet pump and / or metering valve generate heat during operation, for example by means of the electrical actuators and / or by magnetic actuators, this heat being used to prevent cooling of all components in the shared housing.
  • the components in the common housing with an overall reduced volume of the delivery unit, an improved cold start capability of the delivery unit and / or the fuel cell system can be achieved, in particular when the overall vehicle is standing for a long time, since less mass has to be heated and because the available heat individual components can be used to heat the common housing.
  • the probability of failure of the delivery unit and / or the fuel cell system can also be reduced, and the service life can be increased.
  • the recirculation blower has a compressor wheel with a circumferential outer limiting ring, which runs rotationally symmetrically to an axis of rotation of the compressor wheel and wherein on the side of the compressor wheel facing away from the axis of rotation in the housing of the Conveying unit is an at least partially encapsulated separation space and / or a discharge channel.
  • the constituent H 2 O and / or the constituent N 2 is separated from the gaseous medium in the recirculation blower, the separation being carried out in particular by means of the centrifugal principle in the recirculation blower.
  • the advantage can be achieved that an at least partial encapsulation of the at least one side channel and / or a conveying cell takes place to an outer region in the housing, in particular to the separating space.
  • the efficiency of the recirculation blower and thus of the delivery unit can thus be improved.
  • the advantage can be achieved that the heavy components that are removed from a compressor chamber of the recirculation blower into the separation chamber, which is in particular between the outer limiting ring of the compressor wheel and the housing, and / or further out of the housing the recirculation blower and the fuel cell system can be removed.
  • the advantage can be achieved the advantage that no additional energy and / or only a small amount of energy has to be made available for separating the components H 2 O and / or I h from the component H 2 , in particular from the fuel cell system and / or from the higher-level vehicle system.
  • a further introduction of energy, in particular of kinetic energy, into the medium is therefore no longer necessary in order to be able to bring about an optimal efficiency of the separation process through the recirculation blower by means of the centrifugal principle.
  • the efficiency of the fuel cell system can be increased and the operating costs can be reduced.
  • the recirculation blower and the jet pump are arranged with respect to one another in the common housing such that the axis of rotation of the compressor wheel of the recirculation blower is at least approximately perpendicular to a longitudinal axis of the jet pump.
  • a gas outlet opening of the recirculation blower merges directly into a first inlet and / or a suction area of the jet pump and forms an integrated flow channel.
  • the integrated flow channel can form a curvature within the common housing, with deflection and / or flow guidance of the gaseous medium between the recirculation blower and the jet pump taking place exclusively in the region of the curvature. This offers the advantage that the flow losses and / or pressure losses within the delivery unit can be reduced due to the length of the flow lines and / or the number of flow deflections.
  • the flow guidance in the recirculation blower and in the jet pump runs in parallel planes, whereby this advantageous effect can be improved in that the gaseous medium flows out of the recirculation blower, in which the gaseous medium, in particular in the recirculation blower with a Swirl energy is applied, is advantageously introduced into the suction area of the jet pump via the area of the curvature such that a pulse transmission and / or the jet pump effect can be improved in this area and / or in the area of a mixing tube of the jet pump.
  • a flow deflection of the gaseous medium is further reduced, as a result of which the flow losses within the delivery unit can be further reduced.
  • the geometric shape of the integrated flow channel in the area of the bend is designed to reduce friction. This can increase efficiency of the delivery unit, in particular at almost all operating points and / or pressure ratios of the fuel cell system, can be improved and the energy expenditure for operating the delivery unit can be reduced.
  • a compact design of the delivery unit can be achieved, so that the advantage can be achieved that the delivery unit requires less installation space, particularly in the overall vehicle.
  • the configuration of the conveyor unit according to the invention allows the number of components required for the assembly of the conveyor unit to be reduced, which in turn leads to cost savings for the conveyor unit. Furthermore, the probability of an assembly error due to incorrectly aligned components of the conveyor assembly is reduced, which in turn reduces the likelihood of failure of the conveyor assembly during operation.
  • the component H 2 O and / or the component N 2 is separated from the gaseous medium in an anode circuit by means of the recirculation blower and / or by means of a separator.
  • This ensures in an advantageous manner that early and rapid separation of the heavy constituents H 2 O and / or N 2 can be brought about, which increases the efficiency of the fuel cell system, since the heavy constituents only have to be conveyed through the anode circuit for as short a time as possible , which would bring about a reduction in the efficiency, since less H 2 can be conveyed for the proportion of heavy constituents in the gaseous medium and because the heavy constituents have a higher degree.
  • a cumulative effect can be generated, in particular if components are connected in series. In this way, the efficiency of the fuel cell system can be further increased.
  • the separator is upstream in a flow direction V to the delivery unit in the ano- arranged the circuit, the anode region is fluidly connected to the separator by means of a first connecting line and the separator is fluidly connected to the conveying unit by means of a second connecting line and the conveying unit is fluidly connected to the anode region by means of a third connecting line.
  • H 2 O and / or N 2 can be discharged from the recirculation blower into the separator in a flow direction VI via a return line.
  • the separating space and / or the discharge duct which are located on the side of the compressor wheel facing the axis of rotation in the housing of the delivery unit and are at least partially encapsulated, are at least partially fluidly connected via the return line to a collecting container of the separator. Furthermore, the separating space and / or the discharge channel form an increased pressure level to the collecting container of the separator, with H 2 O and / or N 2 being discharged from the recirculation blower into the separator in the flow direction VI.
  • the increased pressure level and / or the centrifugal force with which the gaseous medium from the Rotationsbewe movement is applied in the recirculation blower can be used to make a better removal of the heavy components H 2 O and / or N 2 from the separating space to effect via the discharge duct and / or the return line in the collector's collecting tank.
  • the pressure drop in which there is in particular a higher pressure in the separation chamber compared to the collecting container, is used to derive the heavy components from the delivery unit into the collecting container of the separator by means of the discharge duct and / or the return line.
  • the process can be improved by the return line and / or the pressure drop between the separating space and the collecting container described above, that the H 2 located in the collecting container is conveyed back into the anode circuit, in particular via the second connecting line.
  • the use and the respective arrangement of the water separator can thus achieve the advantage that the efficiency of the delivery unit and / or the fuel cell system can be increased.
  • the direct connection of the delivery unit to the separator by means of the return line can increase the degree of water separation from the delivery unit, so that the water in the delivery unit even when the entire vehicle is at a standstill and at low temperatures, especially below 0 ° C , cannot form ice bridges, which can damage the delivery unit and / or the fuel cell system, in particular a membrane.
  • the configuration of the fuel cell system according to the invention makes a purge valve, in particular located on the delivery unit, which serves to discharge H 2 O and / or N 2 , superfluous, so that less pressure losses and / or losses of H 2 from the anode circuit occur and also fewer components are required, so that the material costs and / or the manufacturing costs of the entire fuel cell system can be reduced.
  • the collection container has a discharge valve, the discharge valve being arranged in a low geodetic height in the intended use, in the collection container, the derivation of the entire H 2 O and / or N 2 from the region of the Anode circuit takes place via the discharge valve.
  • the second connecting line is arranged in a large geodetic height in the collecting container.
  • the heavy components can then be discharged from the separator and thus from the anode circuit via the discharge valve and then via an outlet, with at least almost no H 2 being derived and thus being lost for energy gain by means of the fuel cell system.
  • the light component of the gaseous medium, in particular H 2 which is separated from the rest of the gaseous medium, among other things, in the collecting container of the separator, is in the region of the large geodetic height, in particular close to the second connecting line collects.
  • the light components can then be led out of the collecting tank of the separator and introduced into the second connecting line of the anode circuit. The efficiency of the fuel cell system can thus be improved.
  • a separating edge is arranged in the collecting container in such a way that the gaseous medium flowing from the anode region deflects in such a way and / or is split up so that the light component h is directed towards the second connecting line and the heavy components H 2 O and / o of the IN are directed towards a reservoir.
  • the advantage can be achieved by means of the separating edge that the light component hh is conducted to a large geodetic height of the collecting container, while the heavy components H 2 O and / or N 2 are conducted to the region of a low geodetic height, wherein the separation process by means of the separating edge is reinforced by the pressure present in the first connecting line and a flow velocity of the gaseous medium flowing into the collecting container from the first connecting line and impinging on the separating edge.
  • the flow loss and / or the pressure loss in the separator remains low and the efficiency of the fuel cell system can be improved.
  • the return line has a shut-off valve, the shut-off valve being located between the recirculation fan and the separator, in particular the collecting tank.
  • a first sensor system and / or a second sensor system are connected to a control device, in particular the first sensor system continuously measuring parameters of the separator and the second sensor system continuously measuring parameters of the recirculation blower.
  • the control device controls the opening and closing of the discharge valve and / or the shut-off valve, in particular on the basis of the parameters detected by the respective sensor system.
  • the advantage can be achieved that by means of the control, in particular the opening and closing, the discharge valve and / or the shut-off valve on the basis of the data recorded by the sensors, the heavy components from the anode circuit of the fuel cell system and / or or can be led out of the separation chamber if a certain concentration of heavy constituents in the gaseous medium is determined by means of the sensors and / or if a certain pressure level and / or temperature level is determined in different areas of the fuel cell system and / or is exceeded.
  • a possibly existing pressure drop and / or a flow and / or a mass flow from the anode circuit, in particular the delivery unit and / or the recirculation blower and / or the first connecting line and / or the second connecting line can be used in order to lead the heavy components out of the anode circuit as efficiently as possible and at least almost without additional energy expenditure and or to effect a corresponding separation. In this way, the efficiency of the fuel cell system can be increased.
  • FIG. 1 shows a schematic illustration of a fuel cell system according to the invention with a delivery unit and a separator
  • Figure 2 shows a schematic sectional view of the separator according to the
  • FIG. 3 shows a perspective sectional view of the delivery unit with one of the recirculation blowers, a jet pump and a metering valve in a housing,
  • FIG. 4 shows a section of a compressor space of the recirculation blower, designated II in FIG. 3,
  • FIG. 5 shows a section of a separating chamber designated III in FIG. 4.
  • Fig. 1 shows a schematic representation of a fuel cell system according to the invention with a delivery unit 3 and a separator 10th
  • the fuel cell system 1 has a fuel cell 2, the fuel cell 2 having an anode region 38 and a cathode region 40.
  • the anode region 38 of the fuel cell 2 is connected to an anode circuit 9, the anode circuit 9 having the separator 10, the delivery unit 3 and a tank 42.
  • the separator 10 is arranged in a flow direction V upstream of the conveying unit 3 in the anode circuit 9, the anode region 38 being fluidly connected to the separator 10 by means of a first connecting line 23 and the separator 10 being fluidly connected to the conveying unit 3 by means of a second connecting line 25 is and the conveyor unit 3 by means of a third connec tion line 27 is fluidly connected to the anode region 38.
  • the conveying unit 3 also has a recirculation blower 8, a jet pump 4 and a metering valve 6, the metering valve 6 being located between the tank 42 and the jet pump 4.
  • the metering valve 6 is at least almost directly connected to the jet pump 4, with an external pipe between the two components either not being present because the metering valve 6 is integrated in the jet pump 4, or the external pipe is so as short as possible to avoid flow losses through the pipeline.
  • the recirculation blower 8 of the delivery unit 3 promotes an unused recirculate coming from the fuel cell 2 via a first inlet 28 into the jet pump 4. Furthermore, a pressurized F, which is, in particular, a propellant, flows in a flow direction VII supplied to the jet pump 4 by means of the metering valve 6 and flows into the jet pump 4 via a second inlet 36. Furthermore, the component H2O and / or the component N2 is separated from the gaseous medium in the anode circuit 9 by means of the recirculation blower 8 and / or by means of the separator 10. The recirculation blower 8 is connected to the separator 10 by means of a return line 21.
  • a pressurized F which is, in particular, a propellant
  • H2O and / or N2 can be discharged from the recirculation blower 8 into the separator 10 in a flow direction VI.
  • the return line 21 has a shut-off valve 26, the shut-off valve 26 being located between the recirculation blower 8 and the separator 10, in particular a collecting container 31 of the separator 10.
  • a discharge valve 44 is located on the collecting container 31 of the separator, by means of which the heavy components H2O and / or N2, which have been separated from the gaseous medium, can be derived from the anode circuit 9 and / or the fuel cell system 1.
  • a first sensor system 22 and / or a second sensor system 24 are connected to a control device 14, the first sensor system 22 in particular continuously recording parameters of the separator 10 and the second sensor system 24 continuously parameters of the recirculation blower 8 summarizes, wherein the control device 14, in particular on the basis of the parameters detected by the sensor 22, 24, controls the opening and closing of the discharge valve 44 and / or the shut-off valve 26.
  • the detected parameters can be, for example, pressure, temperature, volume flow, concentration of various constituents of the gaseous medium, such as h, H2O, N2 and / or dirt particles.
  • the sensors 22, 24 can also be installed directly on the conveyor unit 3, for example.
  • a corresponding logic or calculation method stored on the control device 14 for example in the form of a CPU with a memory unit, a corresponding activation and / or opening and / or closing of the valves 26, 44 in such a way that a optimal removal of the heavy constituents from the anode circuit 9 and / or fuel cell system 1 can take place, the light constituents Fh being able to be returned to the anode circuit 9 in as large an amount as possible.
  • Fig. 2 shows a schematic sectional view of the separator 10 according to the invention.
  • the separator 10 has the collecting container 31, the collecting container 31 being connected by means of the return line 21 and / or the first connecting line 23 and / or the second connecting line 25 to the anode circuit 9 of the fuel cell system 1 and / or various components of the fuel cell system 1 is, for example the recirculation blower 8.
  • the collecting container 31 has the discharge valve 44 and / or the one outlet 32 by means of which the heavy components, in particular H2O and / or N2, are discharged into the environment or into the cathode circuit of the Fuel cell system 1 are returned.
  • the discharge valve 44 and / or the outlet 32 is arranged, for example, at a low geodetic height in the collecting container 31, in particular in order to guide and / or collect the heavy components in this area of the collecting container 31 by means of gravity.
  • the entire H2O and / or N2 can be discharged from the area of the anode circuit 9 via the discharge valve 44.
  • the range of the low geodetic height in the collecting container 31 is referred to as the reservoir 18.
  • Above the reservoir 18 on the The discharge valve 44 facing away from the side of the reservoir 18 may have at least one wall that serves as a spill protection of the reservoir 18.
  • the second connecting line 25 can, however, be arranged on the opposite side of the collecting container 31, for example at a large geodetic height of the collecting container 31.
  • a separating edge 37 is arranged in the collecting container 31 such that the inflowing gaseous medium coming from the anode region 38 and flowing in via the first connecting line, which is in particular a recirculate, is deflected and / or is split up that the light component H is directed in the direction of the second connecting line 25, and the heavy components HO and / o the N are directed in the direction of a reservoir 18.
  • the effect of gravity on the gaseous medium is exploited, by means of which the light components are directed into an upper region of the separating edge 37, in particular on the side of the separating edge 37 facing the second connecting line 25, and the heavy components due to your higher dimensions are directed into a lower region of the separating edge 37, in particular on the side of the separating edge 37 facing the reservoir 18.
  • the separation edge 37 accelerates the separation of the light from the heavy components, since the respective components deflect each into an area of the large geodetic height or in a region of a low geodetic height in the collecting container 31.
  • the membrane space 33 in an exemplary embodiment, there is a membrane space 33, in particular in the region in which the collecting container 31 to the second connecting line 25 flui is connected.
  • the membrane space 33 in particular has a membrane insert 35.
  • the membrane insert 35 is designed as a semipermeable membrane, where the light component H of the medium can be through the membrane, while moving the components HO and / or N through the membrane is not possible, in particular due to the molecular size.
  • the gaseous medium that is to get from the collecting container 31 into the second connecting line 25 must pass through the membrane space 33 and / or the membrane insert 35 and / or the membrane.
  • the separator 10 has the first sensor system 22, the first sensor system 22 continuously recording parameters from the collection container 31, the first sensor system 22 and / or the control device 14 evaluating the recorded data and / or processed and / or evaluated computationally by means of a CPU and wherein the discharge valve 44 is actuated by means of the control device 14.
  • the sensor system 22 can also detect the fill level of the separator 10 in the region of the reservoir 18 and use this acquired data for evaluation, in particular by means of the CPU and / or control device 14, so that, for example, the discharge valve 44 is actuated, when a certain fill level is exceeded and thus the reservoir 18 is emptied.
  • the actuation of the Abfuelven valve 44 by means of the control device 14 can be done mechanically and / or electrically and / or electronically and / or in a further way, wherein a complete and / or partial opening or closing of the discharge valve 44 is possible.
  • This type of control also applies to the shut-off valve 26 shown in FIG. 2 and the second sensor system 24 by means of the control device 14 in a similar and / or congruent manner.
  • Fig. 3 shows a perspective sectional view of the delivery unit 3 with the recirculation blower 8, the jet pump 4 and the metering valve 6. It is shown that the delivery unit 3 in addition to the jet pump 4 component has the recirculation blower 8 and the metering valve 6 as further components, the Flow contours of the components 4, 6, 8 for the gaseous medium and / or the components 4, 6, 8 are at least almost completely arranged in a common housing 7.
  • the housing can be designed in two parts, three parts or in several parts. The individual parts are in particular made of the same material and / or they have an at least approximately the same coefficient of thermal expansion.
  • the recirculation blower 8 has a drive 47, in particular an electrical drive 47, which is connected at least cardanically by means of a drive shaft to a compressor wheel 12 rotatable about an axis of rotation 48.
  • a torque is transmitted from the drive 47 to the compressor wheel 12
  • the compressor wheel 12 is set in a rotational movement and the at least one delivery cell 20 moves in a rotational movement around the axis of rotation 48 through a compressor chamber 30 in the housing 7.
  • a delivery cell 20 is always arranged between two blades 5 of the compressor wheel 12.
  • a gaseous medium that is already in the compressor chamber 30 is also moved through the at least one delivery cell 20 and thereby conveyed and / or compressed.
  • a pressurized propellant is fed to the metering valve 6, which is fed to a suction area 11 by opening and closing the metering valve 6 via a nozzle and meets there with the recirculate coming from the recirculation blower 8.
  • the jet pump 4 has in a flow direction VIII, which runs in particular along its longitudinal axis 50, the suction area 11, a mixing tube 13 and a conical diffuser area 15 and an outlet manifold 17, which is connected to the third connecting line 27 is.
  • a so-called jet pump effect takes place within the jet pump 4.
  • the gaseous propellant, in particular F flows from the outside into the metering valve 6, in particular from the tank 42, through the second inlet 36.
  • the propellant is now introduced into the suction region 11 by opening the metering valve 6, in particular under high pressure.
  • the gaseous propellant flows in the direction of flow VIII.
  • the flowing H2 from the second inlet 36 into the suction area 11 and the nend H2 as the blowing medium has a pressure difference to the recirculation medium which flows from the first inlet 28 into the suction area 11, whereby the propellant is in particular under a higher pressure of at least 10 bar. So that the jet pump effect occurs, the recirculation medium is conveyed with a low pressure and a low mass flow into the suction area 11 of the jet pump 4.
  • the propellant flows through the metering valve 6 into the suction area 11 at the pressure difference described and at a high speed, which is in particular close to the speed of sound.
  • the drive medium meets the recirculation medium that is already in the suction area 11. Due to the high speed and / or pressure difference between the drive medium and the recirculation medium, an internal friction and turbulence between the media is generated. Here creates a shear stress in the boundary layer between the fast propellant medium and the much slower recirculation medium. This voltage causes a pulse transmission, whereby the recirculation medium is accelerated and entrained.
  • the mixing takes place according to the principle of conservation of momentum.
  • the recirculation medium is accelerated in the flow direction VI and there is also a pressure drop for the recirculation medium, as a result of which a suction effect occurs and thus further recirculation medium is replenished from the area of the first inlet 28 and / or the recirculation blower.
  • a delivery rate of the recirculation medium can be regulated and adapted to the respective requirements of the entire fuel cell system 11 depending on the operating state and operating requirements.
  • the components 4, 6, 8 of the conveying unit 3 in the housing 7 are each arranged compactly with respect to one another.
  • the recirculation blower 8 and the jet pump 4 are arranged with respect to one another in the common housing 7 such that the axis of rotation 48 of the compressor wheel 12 of the recirculation blower 8 runs at least approximately perpendicular to the longitudinal axis 50 of the jet pump 4. In this way, the surface of the conveyor unit 3 and / or the space required in the vehicle can be reduced.
  • the flow contours of the components 4, 6, 8 can be arranged in a space-saving manner so that, for example, a gas outlet opening 16 of the recirculation blower 8 can flow almost directly into the suction area 11 and / or the first inlet 28 of the jet pump 4, in particular via a flow-optimized integrated flow channel 41 which has a curvature 43, a deflection and / or flow guidance of the gaseous medium between the recirculation blower 8 and the jet pump 4 taking place exclusively in the region of the curvature 43.
  • a gas outlet opening 16 of the recirculation blower 8 can flow almost directly into the suction area 11 and / or the first inlet 28 of the jet pump 4, in particular via a flow-optimized integrated flow channel 41 which has a curvature 43, a deflection and / or flow guidance of the gaseous medium between the recirculation blower 8 and the jet pump 4 taking place exclusively in the region of the curvature 43.
  • the second sensor 24 and / or a low-pressure sensor 45 is arranged in a space-saving and / or integrated manner in the housing 7, as a result of which less installation space is required.
  • the drive 47 which consists in particular of a thermally conductive material, can advantageously be heated, which is particularly advantageous in the case of a cold start procedure for the delivery unit 3 and / or the vehicle.
  • the drive 47 heats up and transmits, for example due to its heat conductivity, the thermal energy to the compressor wheel 12 and other components of the delivery unit 3 and / or the housing 7.
  • the delivery unit 3 and / or the vehicle is switched off, in particular over a length If the temperature falls below the freezing point and / or at low ambient temperatures, the liquid freezes and ice bridges form. These ice bridges can lead to damage to the delivery unit 3 and / or the fuel cell system 1 when starting and / or starting and / or during operation.
  • the drive 47 By heating the drive 47, the ice bridges melt and the liquid changes from a solid to a liquid Physical state and can be dissipated.
  • the arrangement of the drive 47 is advantageous in that the introduction of heat into the housing 7 takes place as quickly and efficiently as possible.
  • a specific shape of the integrated housing and the use of composite material for the housing can also lead to better thermal conductivity.
  • the use of thermal effects from the fuel cell 2, in particular a stack can be used to warm up or cool down the integrated housing 7.
  • the actuator system of the metering valve 6 can be used as a heat source and has an advantageous effect similar to the drive 47.
  • FIG. 4 shows a section of the compressor chamber 30 of the recirculation blower 8 with the compressor wheel 12, designated II in FIG. 3. It is shown that the compressor wheel 12 has a circumferential outer limiting ring 39 which is rotationally symmetrical to the axis of rotation 48 of the compressor wheel 12.
  • the housing 7 of the recirculation blower and / or the delivery unit 3 there is an at least partially encapsulated separation space 34 and / or a discharge channel 46, in particular the at least one side channel 19 12 is also constructed symmetrically with respect to an axis of symmetry 49, the axis of symmetry 49 running orthogonally to the axis of rotation 48.
  • the outgoing contour of an airfoil 5 of the compressor wheel 12 is shown, this contour being brought together in another section along the axis of symmetry 49.
  • the compressor wheel 12 is shown, which in the area of the outer limitation ring 39 at least one outer circumferential ring collar 29a, b having.
  • This outer collar 29a, b extends axially to the axis of symmetry 49 and on the side of the outer loading limiting ring 39 facing away from the axis of rotation 48.
  • the at least one outer collar 29a, b stands axially and / or radially to the axis of symmetry 49 with the housing upper part 7 and / or the lower housing part 8 of the housing 3 at least almost in contact and / or forms a small gap with it, which at least almost cannot be overcome by the gaseous medium. Since a small gap dimension can be formed between the compressor wheel 12 with the at least one circumferential annular collar 29a, b and the housing 7, an at least partial encapsulation of the at least one side channel 19 from the separation space 34 can be achieved
  • the separating space 34 is at least partially circumferential around the axis of rotation 48 between the housing 7 and the outer limiting ring 39.
  • the heavy constituents are thus derived from the area of the at least one side channel 19 and the feed cell 20 and collected in the area of the separating space 34.
  • These heavy constituents of the gaseous medium can be, for example, undesired waste product and / or by-products from the operation of the fuel cell system 1.
  • the delivery and compression effect of the delivery unit 3 can be increased, since the proportion of the gaseous medium to be delivered, in particular F, which is required for power generation in the fuel cell 2, in the delivery cell 20 and at least a side channel 19 is increased.
  • the efficiency of the conveyor unit 3 can be increased, since no heavy components which are undesirable for the operation need to be conveyed.
  • FIG. 5 shows, in FIG. 4, a section of the separation space 34 designated III.
  • the constituent HO and / or the constituent N is separated from the gaseous medium in the recirculation blower 8, the separation taking place in particular by means of the centrifugal principle in the recirculation blower 8.
  • the separating space 34 is at least indirectly fluidically connected to the return line 21 via the discharge duct 46, the return line 21 conveying unit 3 and / or the recirculation blower 8 at least indirectly fluidly with the collecting container 31 of the separator 10 connects.
  • the separating space 34 and / or the Discharge channel 46 form an increased pressure level to the collecting tank 31 of the separator 10 and where a derivation of H2O and / or N2 from the recirculation blower 8 into the separator 10 in the flow direction VI follows.
  • this separating space 34 makes it possible for the heavy constituents to be removed from the gaseous medium, in particular N2 and / or H2O, and to be collected in this separating space 34.
  • a rotation of the compressor wheel 12 is advantageously used in operation to use a larger centrifugal force of the heavy components due to the higher dimensions compared to the rest of the gaseous medium, in particular H2, that the heavy components are so strong by means of the centrifugal force be moved away from the axis of rotation 48 so that they flow in a flow direction IX from the at least one side channel 19 between the sealing wheel 12 and the housing 7, in particular in the region of the small gap, move into the separation space 34, resulting in a centrifugal force separation comes.
  • the additional discharge channel 46 is located at the geodetically lowest point of the separating space 34. It is advantageous here that, due to the effect of gravity and / or centrifugal force, the heavy components of the gaseous medium collected in the separating space 34 are automatically drained off the discharge channel 46 takes place in the return line 21 without any further measure, such as mechanical pumping, having to be carried out. In addition, the effect of the automatic discharge of the heavy components through the discharge channel 46 to the outside is increased by the fact that heavy components continue to flow into the separation chamber 34 during operation of the recirculation blower 8 and thereby press out the heavy components already there through the discharge channel 46 .
  • the advantage is achieved that by guiding out the heavy components, it is prevented that so-called ice bridges form between the moving parts, in particular the compressor wheel 12 and the housing 7, when the fuel cell system 1 is switched off and at low ambient temperatures .
  • the invention is not restricted to the exemplary embodiments described here and the aspects emphasized therein. Rather, a large number of modifications are possible within the scope specified by the claims, which are within the scope of professional action.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Manufacturing & Machinery (AREA)
  • Sustainable Energy (AREA)
  • Electrochemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Analytical Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Fuel Cell (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

L'invention concerne un groupe de refoulement (3) pour un circuit d'anodes (9) d'un système de piles à combustible (1), servant à refouler un milieu gazeux, en particulier de l'hydrogène, hors d'une zone anodique (38) d'une pile à combustible (2). Le groupe de refoulement (3) comprend au moins une pompe à jet (4). Le groupe de refoulement (3) est relié au moins indirectement de manière fluidique à la sortie de la zone anodique (38) au moyen d'au moins un conduit de liaison (23, 25). Le groupe de refoulement (3) est relié de manière fluidique à l'entrée de la zone anodique (38) au moyen d'un autre conduit de liaison (27). Selon l'invention, le groupe de refoulement (3) comporte, en plus du composant, la pompe à jet (4), en tant qu'autres composants une soufflante de recirculation (8) et une soupape de dosage (6). Les contours d'écoulement des composants (4, 6, 8) pour le milieu gazeux et/ou les composants (4, 6, 8) sont disposés au moins approximativement totalement dans un boîtier (7) commun.
EP20700436.7A 2019-01-30 2020-01-08 Groupe de refoulement pour un circuit d'anodes d'un système de piles à combustible servant à refouler un milieu gazeux, et système de piles à combustible Pending EP3918652A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019201170.5A DE102019201170A1 (de) 2019-01-30 2019-01-30 Förderaggregat für einen Anodenkreislauf eines Brennstoffzellensystems zur Förderung eines gasförmigen Medium und Brennstoffzellensystem
PCT/EP2020/050243 WO2020156763A1 (fr) 2019-01-30 2020-01-08 Groupe de refoulement pour un circuit d'anodes d'un système de piles à combustible servant à refouler un milieu gazeux, et système de piles à combustible

Publications (1)

Publication Number Publication Date
EP3918652A1 true EP3918652A1 (fr) 2021-12-08

Family

ID=69157838

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20700436.7A Pending EP3918652A1 (fr) 2019-01-30 2020-01-08 Groupe de refoulement pour un circuit d'anodes d'un système de piles à combustible servant à refouler un milieu gazeux, et système de piles à combustible

Country Status (7)

Country Link
US (1) US11894585B2 (fr)
EP (1) EP3918652A1 (fr)
JP (1) JP7360468B2 (fr)
KR (1) KR20210120043A (fr)
CN (1) CN113366679B (fr)
DE (1) DE102019201170A1 (fr)
WO (1) WO2020156763A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019201183A1 (de) 2019-01-30 2020-07-30 Robert Bosch Gmbh Förderaggregat für einen Anodenkreislauf eines Brennstoffzellen-Systems zur Förderung eines gasförmigen Medium
DE102022202188A1 (de) 2022-03-03 2023-09-07 Robert Bosch Gesellschaft mit beschränkter Haftung Fördereinrichtung für ein Brennstoffzellen-System zur Förderung und/oder Rezirkulation eines gasförmigen Mediums, insbesondere Wasserstoff, Brennstoffzellensystem
CN114709446B (zh) * 2022-03-25 2023-12-19 东风汽车集团股份有限公司 一种氢燃料电池的冷却控制方法、装置及冷却系统
CN114962355B (zh) * 2022-06-07 2023-11-28 沈海防爆科技有限公司 控制包括真空发生器装置的真空系统
DE102022208417A1 (de) * 2022-08-12 2024-02-15 Robert Bosch Gesellschaft mit beschränkter Haftung Brennstoffzelleneinrichtung für ein Fahrzeug und Verfahren zum Betreiben einer Brennstoffzelleneinrichtung für ein Fahrzeug

Family Cites Families (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2203077A (en) * 1937-07-12 1940-06-04 Fred A Carpenter Pumping structure
WO2003019707A1 (fr) 2001-08-31 2003-03-06 Ceramic Fuel Cells Limited Dispositif de pile a combustible et procede de recirculation des gaz d'echappement
CN2667677Y (zh) * 2003-07-09 2004-12-29 上海神力科技有限公司 一种适合低压运行的燃料电池氢气循环利用装置
JP2005207395A (ja) 2004-01-26 2005-08-04 Toyota Industries Corp スクロール型圧縮機
JP4575701B2 (ja) 2004-04-20 2010-11-04 本田技研工業株式会社 燃料電池システム
JP2006294347A (ja) 2005-04-07 2006-10-26 Toyota Motor Corp 燃料電池システム
JP4670544B2 (ja) 2005-08-16 2011-04-13 トヨタ自動車株式会社 燃料電池システム
JP2007115485A (ja) 2005-10-19 2007-05-10 Nissan Motor Co Ltd 燃料電池システム
JP5002985B2 (ja) 2006-03-08 2012-08-15 トヨタ自動車株式会社 燃料電池システム
KR100962903B1 (ko) * 2007-12-12 2010-06-10 현대자동차주식회사 연료전지차량용 통합형 수소재순환블로워
DE102008013507A1 (de) * 2008-03-11 2009-09-17 Daimler Ag Verfahren und Vorrichtung zum Betreiben eines Brennstoffzellensystems mit einem in einem Brennstoffkreislauf des Brennstoffzellensystems angeordneten Rezirkulationsgebläse
JP2009252634A (ja) 2008-04-09 2009-10-29 Toyota Motor Corp 燃料電池システム
JP5332354B2 (ja) 2008-07-07 2013-11-06 トヨタ自動車株式会社 ポンプ装置および燃料電池システム
JP5277793B2 (ja) 2008-08-21 2013-08-28 トヨタ自動車株式会社 燃料電池の水素循環装置
DE102008058960A1 (de) * 2008-11-25 2010-05-27 Daimler Ag Vorrichtung zur Versorgung einer Brennstoffzelle in einem Brennstoffzellensystem mit Brenngas
WO2010022950A1 (fr) 2008-08-30 2010-03-04 Daimler Ag Appareil destiné à alimenter une pile à combustible en gaz combustible dans un système de pile à combustible
JP2010267553A (ja) 2009-05-18 2010-11-25 Aisan Ind Co Ltd 燃料電池システムの燃料ガス供給装置
DE102009053499A1 (de) * 2009-11-16 2011-05-19 Daimler Ag Brennstoffzellensystem mit einem Anodenkreislauf
KR101219346B1 (ko) 2011-06-09 2013-01-09 현대자동차주식회사 연료전지 시스템용 수소연료 공급 조절 장치 및 그 제어 방법
DE102011105710B4 (de) 2011-06-22 2013-10-17 Pierburg Gmbh Rezirkulationsanordnung zur Rezirkulation von Anodenabgasen einer Brennstoffzelle
DE102011114799A1 (de) * 2011-10-01 2013-04-04 Daimler Ag Gasstrahlpumpe zur Förderung eines Gasstroms
DE102012001602A1 (de) * 2012-01-26 2013-08-01 Daimler Ag Anodenkreislauf für ein Brennstoffzellensystem
KR101417269B1 (ko) 2012-05-07 2014-07-08 기아자동차주식회사 통합형 매니폴드 블록을 갖는 연료전지용 수소공급시스템
DE102012020294A1 (de) 2012-10-17 2014-04-17 Daimler Ag Brennstoffzellenstapel
DE102012023828A1 (de) * 2012-12-05 2014-06-05 Daimler Ag Brennstoffzellensystem für ein Brennstoffzellenfahrzeug
US9595725B2 (en) * 2013-05-03 2017-03-14 Ford Global Technologies, Llc Heated ejector assembly for a fuel cell
JP6025667B2 (ja) 2013-07-02 2016-11-16 本田技研工業株式会社 燃料電池車両
JP5965423B2 (ja) 2014-02-24 2016-08-03 本田技研工業株式会社 燃料電池車両
KR101724904B1 (ko) 2015-09-16 2017-04-07 현대자동차주식회사 연료전지 시스템용 수소 공급 조절 장치
JP6495799B2 (ja) 2015-10-22 2019-04-03 本田技研工業株式会社 燃料電池システム
KR101806690B1 (ko) 2016-04-26 2017-12-07 현대자동차주식회사 연료전지 시스템의 연료극 배출밸브
JP2018092795A (ja) 2016-12-02 2018-06-14 トヨタ自動車株式会社 燃料電池用エアコンプレッサ
JP2018097993A (ja) 2016-12-12 2018-06-21 トヨタ自動車株式会社 燃料電池システム
JP6822293B2 (ja) 2017-04-18 2021-01-27 トヨタ自動車株式会社 燃料電池システム
DE102017222390A1 (de) 2017-12-11 2019-06-13 Robert Bosch Gmbh Fördereinrichtung für eine Brennstoffzellenanordnung zum Fördern und/oder Rezirkulieren von einem gasförmigen Medium
DE102019201183A1 (de) 2019-01-30 2020-07-30 Robert Bosch Gmbh Förderaggregat für einen Anodenkreislauf eines Brennstoffzellen-Systems zur Förderung eines gasförmigen Medium

Also Published As

Publication number Publication date
CN113366679A (zh) 2021-09-07
KR20210120043A (ko) 2021-10-06
US20220093943A1 (en) 2022-03-24
DE102019201170A1 (de) 2020-07-30
US11894585B2 (en) 2024-02-06
JP7360468B2 (ja) 2023-10-12
WO2020156763A1 (fr) 2020-08-06
CN113366679B (zh) 2024-06-07
JP2022518278A (ja) 2022-03-14

Similar Documents

Publication Publication Date Title
EP3918652A1 (fr) Groupe de refoulement pour un circuit d'anodes d'un système de piles à combustible servant à refouler un milieu gazeux, et système de piles à combustible
EP3918653B1 (fr) Dispositif d'alimentation pour un conduit anodique d'un système de piles à combustible pour l'alimentation en fluide gaseux
EP3717822A1 (fr) Séparateur gaz-liquide servant à séparer au moins un constituant liquide d'un constituant gazeux
DE102018213313A1 (de) Förderaggregat für ein Brennstoffzellen-System zur Förderung und/oder Steuerung eines gasförmigen Mediums
WO2009083067A2 (fr) Système de pile(s) à combustible offrant une meilleure gestion de la chaleur
DE102017221302A1 (de) Gas-Flüssigkeitsabscheider zum Abscheiden von zumindest einem flüssigen Bestandteil von einem gasförmigen Bestandteil
DE102018216299B3 (de) Brennstoffzellen-System mit einem Förderaggregat und/oder ein Förderaggregat für ein Brennstoffzellen-System zur Förderung und/oder Steuerung eines gasför-migen Mediums
WO2017133873A1 (fr) Turbine à gaz équipée d'un piston à poussée axiale et d'un palier radial
WO2022012849A1 (fr) Système de pile à combustible
WO2021058372A1 (fr) Unité de transport pour un système de pile à combustible pour le transport et/ou la régulation d'un milieu gazeux
WO2022152494A1 (fr) Compresseur à canal latéral doté d'un entraînement hybride pour système de pile à combustible
WO2019166147A1 (fr) Compresseur à canal latéral pour un système de pile à combustible pour le transport et/ou la compression d'une substance gazeuse
DE102022210601A1 (de) Fördereinrichtung für ein Brennstoffzellen-System zur Förderung und/oder Rezirkulation eines gasförmigen Mediums, insbesondere Wasserstoff
DE102022210602A1 (de) Fördereinrichtung für ein Brennstoffzellen-System zur Förderung und/oder Rezirkulation eines gasförmigen Mediums, insbesondere Wasserstoff
DE102019204723A1 (de) Förderaggregat für ein Brennstoffzellen-System zur Förderung und/oder Steuerung eines gasförmigen Mediums
DE102016011135A1 (de) Flüssigkeitsabscheider für ein Brennstoffzellensystem
DE102023203935A1 (de) Fördereinrichtung für ein Brennstoffzellen-System zur Förderung und/oder Rezirkulation eines gasförmigen Mediums, insbesondere Wasserstoff
DE102022210600A1 (de) Fördereinrichtung für ein Brennstoffzellen-System zur Förderung und/oder Rezirkulation eines gasförmigen Mediums, insbesondere Wasserstoff
DE102022210605A1 (de) Fördereinrichtung für ein Brennstoffzellen-System zur Förderung und/oder Rezirkulation eines gasförmigen Mediums, insbesondere Wasserstoff
DE102008019241A1 (de) Kühler-Nachlaufvorrichtung
WO2022253496A1 (fr) Dispositif d'acheminement pour système de pile à combustible, servant à acheminer et/ou à recycler un milieu gazeux, en particulier de l'hydrogène
DE102022210604A1 (de) Fördereinrichtung für ein Brennstoffzellen-System zur Förderung und/oder Rezirkulation eines gasförmigen Mediums, insbesondere Wasserstoff
DE102011109424A1 (de) Vorrichtung zum Absperren eines Gasstroms
DE102013106329B4 (de) Verfahren und Anordnung zum Evakuieren eines Rohrleitungssystems
WO2023021096A2 (fr) Empilement de cellules élémentaires et système de cellules élémentaires comprenant un empilement de cellules élémentaires

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20210830

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)