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公开(公告)号：US11302942B2
公开(公告)日：2022-04-12
申请号：US14763579
申请日：2013-12-10
IPC分类号： H01M8/04 , H01M8/24 , G01M3/00 , G01M3/20 , H01M8/04664 , H01M8/0438 , G01R31/385 , H01M8/0444 , H01M8/04089 , H01M8/04746 , H01M8/04858 , H01M8/249 , H01M8/10 , H01M8/04082
摘要： A method for detecting leakage of a reducing fluid throughout an electrolyte membrane of an electrochemical cell is provided. The method includes the following consecutive steps: supplying the cell with anode and cathode streams; brisk and controlled variation of at least one of the following parameters: the pressure of the anode stream in the anode channel, the pressure of the cathode stream in the cathode channel, the flow rate of the anode stream into the anode channel, the flow rate of the cathode stream into the cathode channel, and the strength of the current exchanged between the two sides of the membrane; measurement of a first reducing fluid concentration in a first stream, including the cathode stream leaving the cathode channel; and deducing the presence or absence of leakage on the basis of the variation in the first measured concentration of reducing fluid over time. A corresponding fuel cell system is also provided.
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2.发明申请公开(公告)号：US20200208784A1
公开(公告)日：2020-07-02
申请号：US16634871
申请日：2018-08-03
摘要： An system for emptying at least one reservoir containing a pressurized fluid, including, for each reservoir, a vent for discharging the fluid out of the reservoir and a discharge valve for connecting the reservoir to the vent, the emptying system additionally including, for each discharge valve, a return member for returning the discharge valve to its closed configuration, and a fluid control system for controlling the movement of each discharge valve to its open configuration by action of an operating fluid on the discharge valve, the control system including an operating station arranged outside a danger zone around each reservoir, and, for each discharge valve, a fluid pipe fluidically connecting the operating station to the discharge valve, the operating station including at least one reversible free connection for connecting to each fluid pipe of a device for supplying the control system with operating fluid.
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3.发明授权公开(公告)号：US10700370B2
公开(公告)日：2020-06-30
申请号：US15544279
申请日：2016-01-12
IPC分类号： H01M8/04 , H01M8/04858 , H01M8/04537 , H01M8/04828
摘要： An electrical system includes a stack (3) of electrochemical cells (5), a power converter (9) electrically connected to the stack (3), a voltage comparator (7) for comparing the voltage at the terminals of at least one group of at least one electrochemical cell (5) of the stack (3) to a threshold voltage, and a control module (11) for controlling the converter (9). The control module (11) includes a generator (74) for generating a control instruction for controlling the converter (9) and a transmission member (76) for transmitting the control instruction to the converter (9). The voltage comparator (7) is suitable for transmitting a signal to the transmission member (76). The signal consists of a first instruction from an instruction for transmitting and an instruction for blocking the control instruction when the compared voltage is higher than the threshold voltage, and a second instruction from the instructions for transmitting and blocking the control instruction when the compared voltage is lower than or equal to the threshold voltage.
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公开(公告)号：US11441739B2
公开(公告)日：2022-09-13
申请号：US16634871
申请日：2018-08-03
摘要： An system for emptying at least one reservoir containing a pressurized fluid, including, for each reservoir, a vent for discharging the fluid out of the reservoir and a discharge valve for connecting the reservoir to the vent, the emptying system additionally including, for each discharge valve, a return member for returning the discharge valve to its closed configuration, and a fluid control system for controlling the movement of each discharge valve to its open configuration by action of an operating fluid on the discharge valve, the control system including an operating station arranged outside a danger zone around each reservoir, and, for each discharge valve, a fluid pipe fluidically connecting the operating station to the discharge valve, the operating station including at least one reversible free connection for connecting to each fluid pipe of a device for supplying the control system with operating fluid.
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