WO2007144045A1 - Dispositif accumulateur de combustible pour un véhicule fonctionnant à l'hydrogène - Google Patents

Dispositif accumulateur de combustible pour un véhicule fonctionnant à l'hydrogène Download PDF

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Publication number
WO2007144045A1
WO2007144045A1 PCT/EP2007/003887 EP2007003887W WO2007144045A1 WO 2007144045 A1 WO2007144045 A1 WO 2007144045A1 EP 2007003887 W EP2007003887 W EP 2007003887W WO 2007144045 A1 WO2007144045 A1 WO 2007144045A1
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WIPO (PCT)
Prior art keywords
hydrogen
pressure
heat
storage device
resistant vessel
Prior art date
Application number
PCT/EP2007/003887
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German (de)
English (en)
Inventor
Thomas Friedrich
Original Assignee
Bayerische Motoren Werke Aktiengesellschaft
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Filing date
Publication date
Application filed by Bayerische Motoren Werke Aktiengesellschaft filed Critical Bayerische Motoren Werke Aktiengesellschaft
Publication of WO2007144045A1 publication Critical patent/WO2007144045A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C11/00—Use of gas-solvents or gas-sorbents in vessels
    • F17C11/005—Use of gas-solvents or gas-sorbents in vessels for hydrogen
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/001—Processes specially adapted for distillation or rectification of fermented solutions
    • B01D3/003—Rectification of spirit
    • B01D3/004—Rectification of spirit by continuous methods
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/012—Hydrogen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/03—Control means
    • F17C2250/032—Control means using computers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0165—Applications for fluid transport or storage on the road
    • F17C2270/0168—Applications for fluid transport or storage on the road by vehicles
    • 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
    • Y02E60/32—Hydrogen storage

Definitions

  • the invention relates to a fuel storage device for a hydrogen-operable motor vehicle according to the preamble of the first claim.
  • hydrogen can be stored in motor vehicles, for their operation, also in compressed gas storage or in Hydridspeichem.
  • hydride storage is a so-called sorption hydride, including all solid or liquid, flowable or pumpable, hydrides are to be understood that cyclically charged with hydrogen with heat removal (absorption) and discharged by hydrogen under heat (desorption).
  • metal hydrides for example MgH 2, TiFe
  • complex hydrides for example alanates
  • This applied to a so-called Sorptionshydrid Uber for example in a vehicle, means in the case of operation of this hydrogen storage that it is discharged during the ferry operation, for example, by supplying waste heat from the engine and so supplied with the desorbed hydrogen, for example, the internal combustion engine of a vehicle.
  • the desorbed hydrogen for example, the internal combustion engine of a vehicle.
  • the externally for example, as compressed gas, supplied hydrogen while cooling the Sorptionshydrid Itemss in this absorbed.
  • solid sorption hydride in finely pulverized form is used in a sorption hydride storage and placed in a pressure-resistant storage container equipped with connections for H2 supply and removal and with a heat exchanger.
  • a sorption-hydride storage design or activity serving to supply a hydrogen-powered internal combustion engine differs therefrom mainly in the different available vehicle-side waste heat temperature levels and the discharge pressure requirements, each of which has a significant influence on the selection of the appropriate sorption hydride materials.
  • a storage device for hydrogen which consists of a first pressure-resistant vessel containing a under heat supply or - removal hydrogen de or absorbent substance, in particular to form a hydride, wherein the substance for filling the storage device by heat dissipation and hydrogen supply, is in heat transfer contact with a first heat exchanger and over a first hydrogen tube leading out of the first pressure-resistant vessel is supplied with hydrogen and caused to release hydrogen via the same hydrogen conduit by heat supply by means of the first heat exchanger, the supply and discharge lead out of the first pressure-resistant vessel, characterized in that at least one second pressure-resistant Container, which is in heat-transferring contact with the first pressure-resistant vessel or with its contents, is provided, which contains a heat ent or removal of hydrogen de-absorbent or absorbent material, the second pressure-resistant vessel leading out of this second Has hydrogen line and a second heat exchanger, which is flowed through by the same heat transfer medium as the first heat exchanger and wherein the first and the second heat exchanger are connected together so that the heat
  • a heating or cooling heat transfer medium first heats or cools the sorption hydride disposed in the innermost pressure-resistant vessel, ie the substance de- or absorbing hydrogen under heat supply or removal, and that the heat transfer medium only subsequently - With a time delay - the arranged in the next outer pressure-resistant vessel sorption hydride heats or cools.
  • a time delay is achieved that the desorption or the absorption of hydrogen from or into the sorption of the individual pressure-resistant vessels also takes place with a time delay.
  • the second pressure-resistant vessel is within the first pressure-resistant vessel.
  • Such nested pressure-resistant vessels provide a simple and inexpensive to manufacture embodiment of the invention Sorptionshydrid Itemss.
  • the second pressure-resistant vessel with the first pressure-resistant vessel may also have a proportionately common vessel wall.
  • Such arrangements also allow the implementation of external sorbent hydride reservoir designs that are distinct from typical cylindrical shapes.
  • a quasi Freiformrich in the design of a sorption hydride storage can be achieved.
  • further pressure-resistant vessels may be provided which correspond in their function as a storage device for hydrogen to the second pressure-resistant vessel and with respect to the flow of the heat transfer medium through the heat exchangers, together and with the second pressure-resistant vessel, cascade-like or parallel connected.
  • the hydrogen lines of all pressure-resistant vessels must open into a manifold having at one end at least one refueling controlling device, in particular a shut-off valve for refueling, and the other end is guided to a consumer, being located between the points of confluence of the hydrogen lines in the Manifold each a shut-off device, in particular a check valve is located, which allows a flow of hydrogen exclusively in the consumer direction.
  • An advantageous embodiment of the storage device for hydrogen is characterized in that the hydrogen lines of all pressure-resistant vessels open one after the other in such a sequence in the manifold at which the Wassserstofftechnisch the pressure-resistant vessel whose heat exchanger is first flowed through by the heat transfer medium, closest to the consumer in the Manifold opens and the Wassserstofftechnisch the pressure-resistant vessel whose heat exchanger last is traversed by the heat transfer medium, remotely estest opens to the consumer in the manifold.
  • a further advantageous embodiment of the invention is characterized in that a further connection device for hydrogen refueling, in particular a quick coupling, is introduced into the collecting line.
  • a further preferred embodiment of the invention is characterized in that the inlet and outlet for the heat transfer medium of the heat exchanger, in particular outside the first pressure-resistant vessel, each at least with a switching device, in particular a switchable multiway valve, are provided, whereby supply or removal of heat transfer medium can be done from different sources or in different sinks.
  • each different media can be used for heat transfer.
  • a gaseous medium e.g. to operate the exhaust gas of an internal combustion engine or during the absorption phase with a liquid medium, e.g. a station provided and disposed of cooling water flow.
  • a storage device for hydrogen characterized in that the casing of the heat exchanger, in particular at the lowest point of its course in operating position, has a downwardly pointing siphon, the complete emptying of the heat exchanger by gravity or by printing with a gaseous medium, in particular with filling station available compressed air possible.
  • This is to ensure that at the end of a refueling phase carried out with water cooling (absorption phase), the water can be pushed out before switching the heat exchanger valves in the inlet or in the return largely and thus before starting the driving operation (desorption with exhaust gas flow in the heat exchanger) the heat exchanger largely has left.
  • a small residual amount of water may possibly be released as vapor during the ferry operation via the exhaust system.
  • a further preferred embodiment of the invention provides that on the heat exchangers heat transfer medium side and / or fabric side means for enlarging the heat exchange for exchange surface, in particular ribs are arranged.
  • the substance which absorbs or absorbs hydrogen under heat supply or removal is a substance which is solid, in particular pulverized, or a liquid hydride, under all or under at least one operating condition.
  • a liquid - meaning: free-flowing and / or pumpable - Hydrides as Sorptionshydrid can be compared to the use of powdered sorbent significantly increase the volumetric storage density of hydrogen in Sorptionshydrid Grande and significantly improve the heat transfer from WT in the sorption.
  • the desorption temperature is below heat supply or removal de- hydrogen or absorbent material at normal pressure at about 100 0 C of that enables Sorptionshydrid advantageously, the use of large amounts of waste heat streams contained in the exhaust gas or cooling water of an internal combustion engine.
  • the Sorptionshydrid Stllonne serve in individual Pressure-resistant vessels different operating requirements (eg run-up of Sorptionshydrid Itemss by means of start reactor, fast construction of high flow rates in the heat-favored hydride of the innermost pressure-resistant vessel, high storage capacity in the hydride of the outermost pressure-resistant vessel).
  • Sorptionshydrid serve in individual Pressure-resistant vessels different operating requirements (eg run-up of Sorptionshydrid Tipss by means of start reactor, fast construction of high flow rates in the heat-favored hydride of the innermost pressure-resistant vessel, high storage capacity in the hydride of the outermost pressure-resistant vessel).
  • the storage device for hydrogen is characterized in that at least the first pressure-resistant vessel is provided on its inside and / or its outside with a heat insulation. Due to the isolation of the outermost pressure-resistant vessel, a time extension of the operational readiness of the sorption hydride storage is achieved.
  • a sorption hydride reservoir is ready for use when its sorption hydride is heated to desorption temperature. The thermal insulation retards the cooling of the sorption hydride reservoir during a stoppage of operation, thus prolonging its ability to be put back into operation without time delay, which would be caused by reheating sorption hydride.
  • At least one pressure-resistant vessel may be provided on its inside with a heat insulation, which is elastically reversible deformable changing their physical component volume that their component volume is at least a part as at least proportional expansion volume for the substance during the absorption process.
  • a further preferred embodiment of the storage device for hydrogen is characterized in that at least one innermost pressure-resistant vessel contains another, hydrogen-absorbing or absorbing substance-containing, pressure-resistant vessel, the heat with the hydrogen or absorbent material of the innermost pressure-resistant vessel transmitting heat is in contact and which is connected via a pipe to the interior of a pressure-resistant vessel located further outside or with a pressure-resistant vessel containing at least a portion of hydrogen, in particular with an external buffer, wherein at least one shut-off device, in particular a shut-off valve and / or in the pipeline or a pressure relief valve is arranged.
  • the static pressure in the innermost pressure-resistant vessel can be identical to the static temperature of the hydrogen bond in the hydrides, both for the heating function of the start reactor and for the accelerated conveying function of the innermost one pressure-resistant vessel during a commissioning phase are at least partially realized.
  • the storage device for hydrogen is characterized in that at least one innermost pressure-resistant vessel contains a, in particular electrical or hydrogen-powered, heating device within the hydrogen de or absorbent material in the innermost pressure-resistant Vessel is arranged and is in thermal contact with the substance, wherein the heating device is controlled by a switching device, which releases the operation of the heater or interrupts.
  • At least one of the pressure-resistant vessels has at least one temperature sensor and / or pressure sensor and that at least one of the measured variables recorded with these sensors can be detected at least during portions of Absorptions sunnysphase on a data line gas station side and / or that at least a sensor is connected to a device which operates at least one sensor and / or processes at least the signals of a sensor, in particular to a control device.
  • the storage device for hydrogen has a data line which has a plug connection and / or a transmitting and / or receiving option at its one end and which has at least one connection to a control device at its other end
  • this data line can, during operation of the sorption hydride storage, For example, via wireless interface to the gas station information, for example, to the gas station side determined refueling amount, be transferred to a sorption hydride storage-side information system or can be carried out, for example, the electronic payment of the hydrogen fueled.
  • the Sorptionshydrid Uber has facilities that are required for its regulation and characterized in that the hydrogen line at least one of the pressure-resistant vessels or, from the junction in the manifold, this in the consumer direction, a static pressure of the flow rate at least temporarily reducing means, in particular a Has pressure regulator, and that at least the heat exchanger of this pressure-resistant vessel has a at least temporarily carrying heat-carrying medium inlet line, wherein in this feed line a mass flow of the medium at least temporarily limiting means, in particular a switchable and / or controllable valve is arranged, and wherein at least in a connected pressure-resistant vessel in all operating states of the storage device, a volume filled only with hydrogen gas is present.
  • a further advantageous embodiment of the storage device for hydrogen is characterized in that it has at least one pressure sensor and at least one electrical and / or optical signal processing device, in particular a control unit, said device processing means at least signals of the pressure sensor and / or signals of a consumer , in particular an internal combustion engine, receives.
  • the engine needs covering hydrogen delivery from the Sorptionshydrid Grande reachable.
  • it is possible to make a systematically or artificially present in the Sorptionshydrid Uber available gas volume as a buffer.
  • the single figure shows a schematic representation of a basic arrangement of a storage device for hydrogen, a so-called Sorptionshydrid Itemss.
  • a hydrogen storage device consists of a first pressure-resistant vessel 1, which contains a substance 2 which de-hydrates or absorbs hydrogen, the substance 2 for filling the storage device by heat removal and hydrogen supply, in heat-transferring contact is located with a first heat exchanger 3 and via a first pressure-resistant vessel 1 out leading first hydrogen line 5 is supplied with hydrogen.
  • the substance 2 is caused by heat supply by means of the first heat exchanger 3, lead out its supply and discharge 8 9 from the first pressure-resistant vessel 1.
  • a second pressure-resistant vessel 4 which is located within the first pressure-resistant vessel 1 and thus is in heat-transferring contact with the contents of the first pressure-resistant vessel 1, is provided, which also de- hydrates or absorbs hydrogen under heat supply or removal Substance 2 ' contains, wherein the second pressure-resistant vessel 4 a second this out leading hydrogen line 6 and a second heat exchanger 7 has. This is traversed by the same heat transfer medium as the first heat exchanger 3 and the first and second heat exchangers 3, 7 are interconnected so that the heat transfer medium flows through first the second and then the first heat exchanger.
  • each of the pressure-resistant vessels 1, 4 another under all or under at least one operating condition solid, especially pulverized, or a liquid hydride forming substance (2, 2 '), are located.
  • solid, especially pulverized, or a liquid hydride forming substance (2, 2 ') are located in each of the pressure-resistant vessels 1, 4 another under all or under at least one operating condition.
  • its desorption temperature at atmospheric pressure is above 100 ° C.
  • Each hydrogen-deorbing or absorbing substance (2, 2 ') may also differ in its other operating characteristics and / or in its material properties.
  • the storage device for hydrogen, or called due to their operation also Sorptionshydrid Items may also be at least temporarily firmly connected to at least one other, not shown, component, at least temporarily, via its outer pressure-resistant vessel 1, said component can at least temporarily carry a mechanical load within a structure.
  • the sorption hydride storage is thus mechanically integrated and the connection between pressure-resistant vessel 1 and component unites both at least temporarily to a mechanical load such as an undivided (structural) component together bearing element.
  • the sorption hydride reservoir can be integrated as a (co-) supporting structural element, for example in a motor vehicle. This can be used both for receiving normal operating loads, and in particular for absorbing crash loads or for absorbing deformation energy to be absorbed in the event of a crash.
  • the hydrogen lines 5, 6 of all pressure-resistant vessels 1, 4 open into a manifold 10 having at one end of a fueling device controlling ((CG) H2) and the other end to a not shown internal combustion engine as a consumer (H2 (ICE) ) is guided, wherein between the points of confluence of the hydrogen lines 5, 6 in the manifold 10, a check valve 11 is located, which allows a flow of hydrogen exclusively in the consumer direction.
  • the hydrogen lines 5, 6 open all pressure-resistant vessels 1, 4 successively in such a sequence in the manifold 10 that the Wassserstoff effet 6 of the flameproof vessel 4, the heat exchanger 7 is first flowed through by the heat transfer medium, closest to the consumer in the manifold 10th opens and the Wassserstoff effet 5 of the pressure-resistant vessel 1, the heat exchanger 3 is last flows through the heat transfer medium remotely opens to the consumer in the manifold 10 opens.
  • the cables and other installations e.g. Shut-off valves for the supply of hydrogen during refueling in the absorption mode are pressure-resistant, ie sufficiently thick-walled, sufficiently thermally insulated and designed for operation with cryogenic hydrogen. This ensures that the Sorptionshydrid Uber can be fueled both with printed hydrogen (CGH2) and / or with cryogenic, liquid hydrogen (LH2). This reduces the refueling time or the effort required for refueling for heat removal.
  • CGH2 printed hydrogen
  • LH2 cryogenic, liquid hydrogen
  • the inlet and outlet 9 for the heat transfer medium of the heat exchangers 3, 7 are provided outside the first pressure-resistant vessel 1 in each case at least with a switching device 20, 21, whereby supply or removal of heat transfer medium from different sources or in different Lowering can take place, for example, heating with exhaust gas of the consumer and cooling with gas station side coolant.
  • the use of water as a heat transfer medium considerable enthalpy of vaporization of the liquid heat transfer medium can be used to increase the cooling capacity of the heat exchanger 3, 7, if the effective tube geometry by large inside pipe cross-sections and the mechanical strength by large pipe wall thickness and shock-resistant brackets during operation with a liquid heat transfer medium, the complete or partial evaporation of this medium within the heat exchanger 3, 7 allows.
  • the heat exchangers 3, 7 are suitable for both gaseous media, e.g. Air or combustion gases, as well as for liquid media e.g. Oil, water, water / glycol mixture designed and thus integrated into different operating environments.
  • the first pressure-resistant vessel 1 is provided on its outside with a heat insulation 22.
  • the innermost pressure-resistant vessel 4 contains another, hydrogen de or absorbent substance (2 ") containing pressure-resistant vessel 23, the hydrogen de or absorbent material (2 ') of the innermost pressure-resistant vessel 4 heat transferring in contact and which is connected via a pipe 24 to the interior of a pressure-resistant vessel located further outside or with a pressure-resistant vessel containing at least temporarily further hydrogen, in particular with an external buffer 25, wherein in the pipeline 24 at least one shut-off device 26, in particular a shut-off valve and / or a pressure relief valve, is arranged.
  • the further pressure-resistant vessel 23 belonging filling hydrogen de or absorbent substance (2 ") with the innermost pressure-resistant vessel 4 belonging filling hydrogen de or absorbent material (2 ') material mixed and together in the innermost pressure-resistant vessel be arranged.
  • the first pressure-resistant vessel 1 has a temperature sensor 30 and / or pressure sensor 31 has and that at least one of the measured variables recorded with these sensors 30, 31 can be detected at the filling station at least during portions of Absorptions sunnysphase on a data line 32 and / or that at least one sensor 30th , 31 to a at least one sensor 30, 31 operating and / or at least the signals of a sensor 30, 31 processing device, in particular to a control unit 33, is connected.
  • the data line 32 has at its one end a plug connection COM and / or a transmission and / or reception possibility and at its other end at least one connection to the control device 33.
  • the hydrogen pipe 5, 6 has at least one of the pressure-resistant vessels 1, 4 or, from the confluence with the manifold 10, in the consumer direction, a static pressure of the flow rate at least temporarily reducing means, in particular a pressure regulator, and the heat exchanger 3, 7 one of these pressure-resistant vessels 1, 4 a at least temporarily carrying heat-carrying medium inlet line 8, wherein in this feed line 8 a mass flow of the heat transfer medium at least temporarily limiting means, in particular a switchable and / or controllable valve 40, is arranged and wherein at least in one connected pressure-resistant vessel in all operating states of the storage device is filled with only filled with hydrogen gas volume.
  • the storage device for hydrogen additionally has a pressure sensor and at least one electrical and / or optical signal processing device, in particular the control device 33, wherein these signals processing device receives at least signals of the pressure sensor and / or signals of the consumer, in particular an internal combustion engine.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

La présente invention concerne un dispositif accumulateur de combustible pour un véhicule fonctionnant à l'hydrogène. Un dispositif accumulateur d'hydrogène se compose d'un premier récipient résistant à la pression qui contient une matière libérant ou absorbant l'hydrogène par l'apport ou la dissipation de chaleur, notamment en formant un hybride. La matière de remplissage du dispositif accumulateur par dissipation de chaleur et apport d'hydrogène se trouve en contact thermoconducteur avec un premier échangeur thermique. Pour l'absorption d'hydrogène, la matière est chargée en hydrogène via une première conduite d'hydrogène sortant du premier récipient résistant à la pression, et pour la libération de l'hydrogène via la même conduite d'hydrogène, elle est soumise à un apport de chaleur à l'aide du premier échangeur thermique. La conduite d'amenée et la conduite d'évacuation du premier échangeur thermique sortent du premier récipient résistant à la pression. L'invention est caractérisée en ce que ledit dispositif comporte au moins un deuxième récipient résistant à la pression, en contact thermoconducteur avec le premier récipient résistant à la pression ou avec son contenu, qui contient une matière absorbant ou libérant l'hydrogène par apport ou dissipation de chaleur. Ledit deuxième récipient résistant à la pression possède une deuxième conduite d'hydrogène sortant de ce récipient et un deuxième échangeur thermique traversé par le même agent caloporteur que le premier échangeur thermique et lesdits premier et deuxième échangeurs thermiques sont raccordés l'un à l'autre de manière à ce que l'agent caloporteur traverse tout d'abord le deuxième échangeur thermique et ensuite seulement le premier.
PCT/EP2007/003887 2006-06-12 2007-05-03 Dispositif accumulateur de combustible pour un véhicule fonctionnant à l'hydrogène WO2007144045A1 (fr)

Applications Claiming Priority (2)

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DE102006027179A DE102006027179A1 (de) 2006-06-12 2006-06-12 Kraftstoffspeichereinrichtung für ein mit Wasserstoff betreibbares Kraftfahrzeug
DE102006027179.3 2006-06-12

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