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公开(公告)号：US20230130879A1
公开(公告)日：2023-04-27
申请号：US17915400
申请日：2021-02-18
发明人： Yasushi Iwai , Norihisa Matake , Hiroyuki Ozawa , Yoshiki Kato , Nagao Hisatome
IPC分类号： H01M8/04111 , H01M8/04858
摘要： A fuel cell power generation system includes: a fuel cell; at least one compressor disposed on an oxidant supply line for supplying an oxidizing gas to the fuel cell; a first motor configured to drive a first compressor among the at least one compressor; and at least one power converter disposed between the first motor and a power grid, and capable of adjusting a torque of the first motor.
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公开(公告)号：US20230128698A1
公开(公告)日：2023-04-27
申请号：US17911845
申请日：2021-02-25
IPC分类号： H01M8/0656 , H01M8/04119 , H01M8/04111 , C25B1/04 , H01M8/04082
摘要： An energy recovery assembly, fuel cell system and vehicle, with an electrolyzer configured to provide a fuel and an oxidant, a fuel cell configured to convert the fuel and an oxidant to electrical energy, a tank configured to store the fuel or the oxidant, and a conduction pathway connecting the tank to the electrolyzer and the fuel cell. The assembly also includes: an expansion machine disposed in the conduction pathway and configured to expand a fluid flowing through the expansion machine and to obtain mechanical energy; and a valve arrangement configured to put the pathway in a first mode in which the fuel or the oxidant is guided to the tank, or in a second mode in which the fuel cell or the oxidant is guided to the fuel cell, wherein the fuel or the oxidant in the first and second modes flows through the expansion machine.
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公开(公告)号：US11629734B2
公开(公告)日：2023-04-18
申请号：US16889967
申请日：2020-06-02
IPC分类号： F04D29/68 , F04D29/42 , H01M8/04111 , F01D9/04 , F01D11/08 , F04D25/04 , F04D29/056 , F04D29/28
摘要： A turbine section of a turbomachine includes a housing that houses and supports the rotating group for rotation about an axis. The housing defines a circumferential inlet passage that extends about the axis. The housing defines a turbine wheel upstream area that is disposed downstream of the circumferential inlet passage and upstream of the turbine wheel. The housing defines an outlet that is downstream of the turbine wheel. Furthermore, the turbine section includes a first flow path that extends from the circumferential inlet passage, through the turbine wheel upstream area, across the turbine wheel, to the outlet. Moreover, the turbine section includes a recirculation flow path that extends from the circumferential inlet passage, through the turbine wheel upstream area, and back to the circumferential inlet passage.
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公开(公告)号：US11619167B2
公开(公告)日：2023-04-04
申请号：US17582893
申请日：2022-01-24
发明人： Fred C. Jahnke
IPC分类号： H01M4/02 , F02C6/14 , C25B9/67 , C25B9/05 , C25B1/02 , C25B15/08 , F02C6/18 , H01M8/04111 , H01M8/0612 , H01M8/1004 , H01M8/1023 , H01M8/0656
摘要： An energy storage system includes: a reformer configured to receive natural gas and steam and to output reformed natural gas; a combustion turbine configured to output heated sweep gas; and a molten carbonate electrolyzer cell (“MCEC”) including: an MCEC anode, and an MCEC cathode configured to receive the heated sweep gas from the combustion turbine. The energy storage system is configured such that: when no excess power is available, the combustion turbine receives the reformed natural gas from the reformer, and when excess power is available, the MCEC operates in a hydrogen-generation mode in which the MCEC anode receives the reformed natural gas from the reformer, and outputs MCEC anode exhaust that contains hydrogen.
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公开(公告)号：US20230027942A1
公开(公告)日：2023-01-26
申请号：US17846681
申请日：2022-06-22
发明人： Myeong Nam WOO
IPC分类号： H01M8/04082 , H01M8/04111
摘要： The present disclosure relates to a fuel cell system including an air supply line configured to supply air to a fuel cell stack, a bypass line connected to the air supply line and configured to allow the air to flow to a target position, and a bypass valve configured to selectively open or close the bypass line, thereby obtaining an advantageous effect of effectively reducing a hydrogen concentration at the target position.
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公开(公告)号：US20220399557A1
公开(公告)日：2022-12-15
申请号：US17642833
申请日：2020-07-31
申请人： Robert Bosch GmbH
发明人： Mark Hellmann , Sergei Hahn
IPC分类号： H01M8/04746 , H01M8/04111 , H01M8/04082 , H01M8/04089 , H01M8/04119
摘要： The invention relates to a method for operating a fuel cell system (100), having a fuel cell stack (20) with a plurality of fuel cells (110) each having at least one cathode portion (K) and at least one anode portion (A), a compressor (10) for conveying air into the cathode portions (K), a pressure-sustaining valve (40), and a control device (50), the at least one cathode portion (K) being arranged downstream of and in fluid communication with the compressor (10) and upstream of and in fluid communication with the pressure-sustaining valve (40), the fuel cell system (100) having a high-pressure region (HDB) between the compressor (10) and the pressure-sustaining valve (40). The invention further relates to a control device (50) and to a fuel cell system (100).
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公开(公告)号：US20220336832A1
公开(公告)日：2022-10-20
申请号：US17657624
申请日：2022-03-31
申请人： ZeroAvia, Ltd.
发明人： Stephen Lawes , Ritish Tejpal
IPC分类号： H01M8/04302 , H01M8/04111 , H01M8/04082 , H01M8/2457 , B60L50/70
摘要： A method for jump-starting a hydrogen fuel cell-powered aircraft is disclosed. The method accesses a fuel cell stack containing latent oxygen therein. Accesses a hydrogen fuel source and provides hydrogen from the hydrogen fuel source into the fuel cell stack causing the hydrogen to mix with the latent oxygen in the fuel cell stack and generate a voltage. The voltage is then provided to a component of the hydrogen fuel cell-powered aircraft such that additional oxygen is introduced to the fuel stack.
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公开(公告)号：US11476482B2
公开(公告)日：2022-10-18
申请号：US17226417
申请日：2021-04-09
发明人： Shuya Kawahara , Hiroyuki Imanishi , Takeho Aisaka
IPC分类号： H01M8/04 , H01M8/04746 , H01M8/04111
摘要： Provided is a fuel cell system capable of suppressing the movement of an operating point of a compressor between a surge region and a non-surge region to reduce operation sounds and vibrations, the fuel cell system including at least: a fuel cell; a compressor; a dry state estimation part to estimate a dry state of the fuel cell; and a pressure target control part to control a pressure target, wherein the pressure target control part is capable of executing at least rise control and lower control, the rise control and the lower control being such that an operating point of the compressor is positioned outside a surge region, a current pressure target is corrected to the value same as a last pressure target if the current pressure target is lower (higher) than the last pressure target when the rise control (lower control) is being carried out.
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公开(公告)号：US20220246969A1
公开(公告)日：2022-08-04
申请号：US17722797
申请日：2022-04-18
IPC分类号： H01M8/1246 , H01M8/2428 , H01M4/88 , H01M4/90 , H01M8/0282 , H01M8/04111 , H01M8/1213
摘要： A single fuel cell according to the present disclosure includes a power generation section, a power non-generation section which does not include the power generation section, and an oxygen-ion-insulating gas seal film arranged so as to cover the surface of the power non-generation section, and the gas seal film is configured by a structure formed by firing a material containing MTiO3 (M: alkaline earth metal element) and metal oxide. The structure may include a first structure and a second structure which are different in composition, the first structure may include components derived from MTiO3 in larger amounts than the second structure, the second structure may include a metal element contained in the metal oxide in a larger amount than the first structure, and the area ratio of the second structure in the structure may be not less than 1% and not more than 50%.
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公开(公告)号：US20220223887A1
公开(公告)日：2022-07-14
申请号：US17612390
申请日：2019-10-25
发明人： Yasushi IWAI , Norihisa MATAKE , Yoshiki KATO , Hiroyuki OOZAWA
IPC分类号： H01M8/04302 , H01M8/04014 , H01M8/04111 , H01M8/04701 , H01M8/04746 , H01M8/12 , H01M8/04225 , F02C6/12 , F02C7/08
摘要： A pressurized air supply system includes a turbocharger including a turbine and a compressor, a recuperator for heat exchange between discharged air from the compressor and flue gas exhausted from the turbine, a start-up heater for heating the air, that includes at least either of start-up air or pressurized air from the compressor, which is supplied to discharged air line between the compressor outlet and the recuperator, and a catalytic combustor for supplying, to the turbine, combustion gas which is generated by combustion of fuel with the flowing air heated by the start-up heater.
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