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公开(公告)号：US20240347748A1
公开(公告)日：2024-10-17
申请号：US18756673
申请日：2024-06-27
发明人： Jong Gyun Kim , Seong Cheol Jeong
IPC分类号： H01M8/04664 , G05B19/05 , H01M8/04089 , H01M8/04223 , H01M8/0438 , H01M8/0444 , H01M8/04537 , H01M8/04992
CPC分类号： H01M8/04679 , G05B19/05 , H01M8/04089 , H01M8/04231 , H01M8/04388 , H01M8/04447 , H01M8/04589 , H01M8/04992
摘要： A device for diagnosing a valve failure of a fuel cell system is capable of accurately and quickly determining whether an integrated valve in a fuel cell system is operated abnormally. and preventing problems caused by the operation abnormality of the integrated valve.
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公开(公告)号：US20240347746A1
公开(公告)日：2024-10-17
申请号：US18573315
申请日：2022-07-20
发明人： Nader ZAAG , Sonia SORBERA
IPC分类号： H01M8/04223 , H01M8/0438 , H01M8/0444 , H01M8/04537 , H01M8/04791
CPC分类号： H01M8/04231 , H01M8/0438 , H01M8/0444 , H01M8/04589 , H01M8/04619 , H01M8/04805 , H01M2250/20
摘要： A method and system includes operating an air blower at an inlet of the fuel cell stack such that a portion of hydrogen in a combined exhaust of a fuel cell system, in all operating conditions of the fuel cell stack, is less than a predefined threshold.
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公开(公告)号：US20240322205A1
公开(公告)日：2024-09-26
申请号：US18577994
申请日：2022-06-30
申请人： Robert Bosch GmbH
发明人： Helerson Kemmer , Matthias Rink
IPC分类号： H01M8/0438 , H01M8/04223 , H01M8/04303 , H01M8/0432 , H01M8/04746
CPC分类号： H01M8/04417 , H01M8/04253 , H01M8/04303 , H01M8/04358 , H01M8/04768
摘要： The invention relates to a method for operating a fuel cell system (1), comprising a fuel cell stack (2), which has a plurality of fuel cells and through which cooling channels extend, which are fed a coolant via a cooling circuit (3) by means of a coolant pump (4). According to the invention, in the event of a start under cold or freezing conditions the temperature of the fuel cells in the fuel cell stack (2) is measured indirectly by means of the pressure difference (Δp) of the coolant across the fuel cell stack (2) and the rotational speed (n) of the coolant pump (4) is controlled in accordance with the indirectly measured temperature.
The invention also relates to a control device for a fuel cell system (1).-
公开(公告)号：US20240291005A1
公开(公告)日：2024-08-29
申请号：US18567626
申请日：2022-06-02
申请人： Robert Bosch GmbH
发明人： Georg Mallebrein , Matthias Rink
IPC分类号： H01M8/0438 , H01M8/04089 , H01M8/04111 , H01M8/04119 , H01M8/04223 , H01M8/0444 , H01M8/04746 , H01M8/0662
CPC分类号： H01M8/04425 , H01M8/04097 , H01M8/04111 , H01M8/04179 , H01M8/04231 , H01M8/04447 , H01M8/04462 , H01M8/04753 , H01M8/0662
摘要： The present invention relates to a fuel cell system (100) for providing electrical energy. The fuel cell system (100) comprises a blower (101) for conveying anode gas, a movement sensor (103) for detecting measurements of a movement of a paddle wheel of the blower (101), and a controller (105). The controller (105) is configured to assign a state of a composition of matter in an anode circuit of the fuel cell system (100) to measured values of the blower (101) detected by the motion sensor (103) in a speed range between a start speed and a predetermined target speed using a predetermined assignment scheme, and to adjust the fuel cell system (100) depending on the assigned state.
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公开(公告)号：US12051834B2
公开(公告)日：2024-07-30
申请号：US17412707
申请日：2021-08-26
发明人： Jong Gyun Kim , Seong Cheol Jeong
IPC分类号： H01M8/04 , G05B19/05 , H01M8/04089 , H01M8/04223 , H01M8/0438 , H01M8/0444 , H01M8/04537 , H01M8/04664 , H01M8/04992
CPC分类号： H01M8/04679 , G05B19/05 , H01M8/04089 , H01M8/04231 , H01M8/04388 , H01M8/04447 , H01M8/04589 , H01M8/04992
摘要： A device for diagnosing a valve failure of a fuel cell system is capable of accurately and quickly determining whether an integrated valve in a fuel cell system is operated abnormally, and preventing problems caused by the operation abnormality of the integrated valve.
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公开(公告)号：US20240222668A1
公开(公告)日：2024-07-04
申请号：US18398824
申请日：2023-12-28
申请人： Joby Aero, Inc.
IPC分类号： H01M8/04701 , H01M8/04007 , H01M8/04029 , H01M8/04111 , H01M8/04223
CPC分类号： H01M8/04738 , H01M8/04029 , H01M8/04037 , H01M8/04074 , H01M8/04111 , H01M8/04253 , H01M2250/20 , H01M2250/405
摘要： A fuel cell system includes a fuel cell for receiving hydrogen from a supply of hydrogen. The system comprises a heat exchanger for transferring heat to the hydrogen from a coolant fluid located in a cooling loop. The cooling loop comprises a number of cooling cores located in a conduit that supplies air to the fuel cell. A compressor compresses air cooled by the cooling cores to provide compressed air to the fuel call. The cooling cores may be de-iced by a coolant fluid that has been warmed by operation of the fuel cell. Fuel cell system efficiency can be increased by cooling the air to be supplied to the fuel cell before or after compressing it.
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公开(公告)号：US20240204225A1
公开(公告)日：2024-06-20
申请号：US18288823
申请日：2021-05-11
发明人： Toshio SHINOKI
IPC分类号： H01M8/04858 , H01M8/04007 , H01M8/04014 , H01M8/04089 , H01M8/04119 , H01M8/04223 , H01M8/04225 , H01M8/04228 , H01M8/0432 , H01M8/04701 , H01M8/04746 , H01M8/0612
CPC分类号： H01M8/04925 , H01M8/04022 , H01M8/04037 , H01M8/04097 , H01M8/04156 , H01M8/04225 , H01M8/04228 , H01M8/04268 , H01M8/04343 , H01M8/04365 , H01M8/04373 , H01M8/04738 , H01M8/04761 , H01M8/0618
摘要： A fuel cell system includes: a steam generator configured to heat water to generate steam; a reforming part configured to cause a reaction between the steam and hydrocarbon to generate a reformed gas containing hydrogen; a fuel cell stack, which has an anode and a cathode, and is configured to generate electric energy through an electrochemical reaction caused between the reformed gas supplied to the anode and an oxidant supplied to the cathode; and an ejector configured to supply at least one of a raw material containing the hydrocarbon or an anode circulating gas obtained by recovering a part of an anode exhaust gas discharged from the anode to the reforming part by using the steam as a driving fluid. The steam generator includes: an evaporation flow passage through which the water flows; an anode exhaust gas flow passage that is thermally connected to the evaporation flow passage and through which the anode exhaust gas flows; and an auxiliary heating device configured to heat the water. The anode exhaust gas flow passage and the auxiliary heating device are opposed to each other across the evaporation flow passage.
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公开(公告)号：US20240178421A1
公开(公告)日：2024-05-30
申请号：US18548271
申请日：2022-03-01
发明人： Alexander MCNICOL , Oliver POSTLETHWAITE , Jonathan David HARMAN , Stefano MICUCCI , Farzad BARARI , Anupama PILLAI , Michael James MCLORN
IPC分类号： H01M8/04746 , C01B3/38 , H01M4/90 , H01M8/04089 , H01M8/04223 , H01M8/04225 , H01M8/04228 , H01M8/04302 , H01M8/04303 , H01M8/0432 , H01M8/04701 , H01M8/04858 , H01M8/04955 , H01M8/0612 , H01M8/0637 , H01M8/12 , H01M8/126 , H01M8/2425
CPC分类号： H01M8/04753 , C01B3/38 , H01M4/9033 , H01M8/04097 , H01M8/04225 , H01M8/04228 , H01M8/04268 , H01M8/04302 , H01M8/04303 , H01M8/0432 , H01M8/04701 , H01M8/0488 , H01M8/0491 , H01M8/04955 , H01M8/0618 , H01M8/0637 , H01M8/126 , H01M8/2425 , C01B2203/0233 , C01B2203/067 , C01B2203/0894 , H01M2008/1293
摘要： A fuel cell system (200, 300) and a method for operating the fuel cell system (200, 300). The fuel cell system (200, (1300) comprising an anode inlet (226) and an anode outlet (227); means for heating the stack (205); an anode off gas recirculation loop (240) configured to provide a gas flow path to recirculate anode off gas from the anode outlet (227) to the anode inlet (226); and a controller (290). The method comprising, at start-up of the fuel cell system (200, 300); heating the stack (205) to a first threshold temperature; providing an unreformed hydrocarbon fuel to the anode inlet (226) at a first fuel flow rate from a fuel supply (225) when but not before the stack (205) is above the first threshold temperature; recirculating anode off gas from the anode outlet (227) to the anode inlet (226) while providing unreformed fuel to the anode inlet (226); and drawing a current from the fuel cell system (200, 300) while recirculating the anode off gas.
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公开(公告)号：US20240170694A1
公开(公告)日：2024-05-23
申请号：US18284316
申请日：2022-01-12
发明人： Jan Pfannenmueller , Matthias Reum , Markus Popp
IPC分类号： H01M8/04089 , H01M8/04223 , H01M8/04746
CPC分类号： H01M8/04097 , H01M8/04231 , H01M8/04753
摘要： A blocking device for a recirculation loop in a fuel cell stack comprises a hydrogen inlet and a recirculation gas inlet. In order to obtain an inexpensive blocking device for the recirculation loop, a recirculation loop blocking valve is provided, which is switched by an upstream hydrogen switching valve.
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10.发明公开公开(公告)号：US20240120513A1
公开(公告)日：2024-04-11
申请号：US18368943
申请日：2023-09-15
发明人： Markus Auer , Richard Bruemmer , Thomas Strauss
IPC分类号： H01M8/04223 , H01M8/04029 , H01M8/04746
CPC分类号： H01M8/04253 , H01M8/04029 , H01M8/04746 , H01M2250/20
摘要： A freeze protection method for a fuel cell system is disclosed. The fuel cell system includes an evaporative cooler device equipped for cooling a heat exchanger of a fuel cell device of the fuel cell system having a feed line, through which during the operation of the fuel cell system, water is pumped to a sprinkling device of the evaporative cooler device and by way of the sprinkling device, the water is applied onto the heat exchanger equipped for temperature-controlling a fuel cell stack of the fuel cell device. The method includes blowing out the evaporative cooler device as part of a deactivation method of the fuel cell system.
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