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    FUEL LEAK DETECTION IN FUEL CELL STACK
    3.
    发明公开
    FUEL LEAK DETECTION IN FUEL CELL STACK 审中-公开

    公开(公告)号：US20230275244A1

    公开(公告)日：2023-08-31

    申请号：US18168323

    申请日：2023-02-13

    申请人： HYDROGENICS CORPORATION

    发明人： Sonia SORBERA ,  Robert BENCAK ,  Prabhsimran MALHI ,  Luke FREGONESE

    IPC分类号： H01M8/04664 ,  H01M8/04228 ,  H01M8/04746 ,  H01M8/04537

    CPC分类号： H01M8/04679 ,  H01M8/04228 ,  H01M8/04753 ,  H01M8/04559

    摘要： The present disclosure generally relates to systems and methods for detecting a hydrogen leak in a fuel cell system including initiating a shutdown process of a fuel cell stack in the fuel cell system by a controller, measuring a volume of hydrogen in a reservoir, pulsing a volume of hydrogen into the reservoir or pulsing hydrogen directly into the fuel cell stack if the volume of hydrogen is insufficient to sustain a voltage discharge process during the shutdown process, making the fuel cell system enter a discharge state by the controller, wherein hydrogen and oxygen in the fuel cell stack are consumed in an electrochemical reaction to discharge voltage in the fuel cell stack, measuring a rate of the voltage discharge by the controller, and detecting the hydrogen leak based on the rate of the voltage discharge or via negative pressure measurements made at the anode inlet.

    FUEL LEAK DETECTION IN FUEL CELL STACK
    5.
    发明公开
    FUEL LEAK DETECTION IN FUEL CELL STACK 审中-公开

    公开(公告)号：US20240120514A1

    公开(公告)日：2024-04-11

    申请号：US18544030

    申请日：2023-12-18

    申请人： HYDROGENICS CORPORATION

    发明人： Sonia SORBERA ,  Robert BENCAK ,  Prabhsimran MALHI ,  Luke FREGONESE

    IPC分类号： H01M8/04664 ,  H01M8/04228 ,  H01M8/04537 ,  H01M8/04746

    CPC分类号： H01M8/04679 ,  H01M8/04228 ,  H01M8/04559 ,  H01M8/04753

    摘要： The present disclosure generally relates to systems and methods for detecting a hydrogen leak in a fuel cell system including initiating a shutdown process of a fuel cell stack in the fuel cell system by a controller, measuring a volume of hydrogen in a reservoir, pulsing a volume of hydrogen into the reservoir or pulsing hydrogen directly into the fuel cell stack if the volume of hydrogen is insufficient to sustain a voltage discharge process during the shutdown process, making the fuel cell system enter a discharge state by the controller, wherein hydrogen and oxygen in the fuel cell stack are consumed in an electrochemical reaction to discharge voltage in the fuel cell stack, measuring a rate of the voltage discharge by the controller, and detecting the hydrogen leak based on the rate of the voltage discharge or via negative pressure measurements made at the anode inlet.

    FUEL CELL PURGE SYSTEM BASED ON TILT LOCATION
    6.
    发明公开
    FUEL CELL PURGE SYSTEM BASED ON TILT LOCATION 审中-公开

    公开(公告)号：US20230411654A1

    公开(公告)日：2023-12-21

    申请号：US18330023

    申请日：2023-06-06

    申请人： HYDROGENICS CORPORATION

    发明人： Prabhsimran MALHI ,  Sonia SORBERA

    IPC分类号： H01M8/04313 ,  H01M8/04119 ,  H01M8/04992

    CPC分类号： H01M8/04313 ,  H01M8/04179 ,  H01M8/04992 ,  H01M2008/1095

    摘要： The present disclosure generally relates to systems and methods for purging water from a fuel cell stack system depending on its tilt angle and tilt location. The fuel cell stack system includes a fuel cell stack with a first corner, a second corner, a third corner and a fourth corner, a tilt sensor located on the fuel cell stack, wherein the tilt sensor is operable to detect tilt location of the fuel cell stack, and wherein the tilt location is the first, second, third or fourth corner of the fuel cell stack, a first purge valve system and a second purge valve system for removing water from an anode exhaust, and a controller.