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    SHUTDOWN METHOD OF FUEL CELL STACK AND FUEL CELL SYSTEM THEREFOR
    2.
    发明申请
    SHUTDOWN METHOD OF FUEL CELL STACK AND FUEL CELL SYSTEM THEREFOR 审中-公开
    燃料电池堆和燃料电池系统的关闭方法

    公开(公告)号：US20160372767A1

    公开(公告)日：2016-12-22

    申请号：US14742785

    申请日：2015-06-18

    Applicant: GM Global Technology Operations LLC ,  Honda Motor Co., Ltd.

    Inventor： Manish Sinha ,  Michael Cartwright ,  Pinkhas A. Rapaport ,  Asao Uenodai

    IPC: H01M8/04

    Abstract: A fuel cell stack, a method of operating a fuel cell stack and a fuel cell system. In one particular form, shutting down the stack upon detection of a leakage of fuel either within the stack or from the stack involves depressurizing and uniform consumption of hydrogen by catalytic consumption in the cathode of all cells. Upon consumption of oxygen in the cathode portion of the stack by chemical reaction, the remaining unreacted nitrogen from the air acts as an inerting fluid. After an indication of reaction cessation is established, at least some of the inerting fluid is conveyed from the cathode portion to the anode portion. One or more of a bleed valve, backpressure valve and bypass valve are manipulated to promote the anode portion depressurization, cathode portion inerting and subsequent conveyance of the inerting fluid to the stack anode portion.

    Abstract translation: 燃料电池堆，操作燃料电池堆的方法和燃料电池系统。 在一种特定形式中，在检测到堆叠或堆叠内的燃料泄漏的情况下关闭堆叠包括通过所有电池的阴极中的催化消耗来降低氢气并使其均匀消耗。 当通过化学反应在堆叠的阴极部分中消耗氧时，来自空气的剩余的未反应的氮作为惰性流体。 在建立反应停止的指示之后，至少一些惰性流体从阴极部分输送到阳极部分。 操纵排气阀，背压阀和旁通阀中的一个或多个以促进阳极部分减压，阴极部分惰化和随后将惰性流体输送到堆叠阳极部分。

    FUEL CELL CATHODE BALANCE OF PLANT FREEZE STRATEGY
    5.
    发明申请
    FUEL CELL CATHODE BALANCE OF PLANT FREEZE STRATEGY 审中-公开
    燃料电池阴极平衡工厂冷冻策略

    公开(公告)号：US20150311547A1

    公开(公告)日：2015-10-29

    申请号：US14260199

    申请日：2014-04-23

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Bruce J. Clingerman ,  Aaron Rogahn ,  Steven D. Burch ,  Michael Cartwright

    IPC: H01M8/04

    CPC classification number: H01M8/04179 ,  H01M8/04029 ,  H01M8/04156 ,  H01M8/04201 ,  H01M8/04228 ,  H01M8/04253 ,  H01M8/0432 ,  H01M8/04395 ,  H01M8/04492 ,  H01M8/04753 ,  H01M8/04776 ,  H01M2008/1095

    Abstract: A system and method for a cathode subsystem in a fuel cell system. The system includes a fuel cell stack, a cathode inlet line that provides cathode air to a fuel cell stack and a cathode exhaust line that exhausts a cathode exhaust gas out of the fuel cell stack. Also included is a backpressure valve in the cathode exhaust line that is located downstream of a drip rail of the cathode exhaust line, where the drip rail includes a protrusion that prevents condensed water from building up near the backpressure valve. The drip rail further includes a sump that collects drips of condensed water from the protrusion of the drip rail. The system also includes a drain below a water vapor transfer unit that includes an orifice that is in a portion of the drain that is within the cathode exhaust line.

    Abstract translation: 一种用于燃料电池系统中阴极子系统的系统和方法。 该系统包括燃料电池堆，向燃料电池堆提供阴极空气的阴极入口管线和将阴极废气排出燃料电池堆的阴极排气管线。 还包括位于阴极排气管的滴水管下游的阴极排气管中的背压阀，其中滴水轨道包括防止冷凝水在背压阀附近积聚的突起。 滴水轨道还包括从滴水轨道的突起收集冷凝水滴的集水槽。 该系统还包括在水蒸汽转移单元下方的排水口，其包括位于排气管内部的排气管内的孔口。

    Automated cold storage protection for a fuel cell system
    6.
    发明授权
    Automated cold storage protection for a fuel cell system 有权
    燃料电池系统的自动冷库保护

    公开(公告)号：US08900766B2

    公开(公告)日：2014-12-02

    申请号：US13631515

    申请日：2012-09-28

    Applicant: GM Global Technology Operations LLC

    Inventor： Aaron Rogahn ,  Bruce J. Clingerman ,  Michael Cartwright

    IPC: H01M8/02 ,  H01M8/04 ,  B60K1/00

    CPC classification number: H01M8/04365 ,  B60L1/003 ,  B60L11/1885 ,  B60L11/1892 ,  B60L2240/662 ,  H01M8/04223 ,  H01M8/04225 ,  H01M8/04231 ,  H01M8/04253 ,  H01M8/04302 ,  H01M8/0432 ,  H01M8/04529 ,  H01M8/04604 ,  H01M8/04955 ,  H01M2008/1095 ,  H01M2250/20 ,  Y02T10/7291 ,  Y02T90/16 ,  Y02T90/32 ,  Y02T90/34

    Abstract: A system and method for selectively determining whether a freeze purge should be performed at shut-down of a fuel cell stack. The method includes identifying that the vehicle has been keyed off and then determining whether a stack membrane humidification value is less than a predetermined humidification value that identifies the humidification of membranes in fuel cells in the fuel cell stack. If the stack membrane humidification value is not less than the predetermined humidification value, then the method determines if the ambient temperature is below a predetermined ambient temperature, and if so, performs the freeze purge. If the ambient temperature is not below the predetermined ambient temperature, then the method performs a short non-freeze purge of the flow channels in the fuel cell stack. The method determines a wake-up time for a controller for a next time to determine whether a freeze purge should be performed.

    Abstract translation: 一种用于选择性地确定在关闭燃料电池堆时是否应执行冷冻清洗的系统和方法。 该方法包括识别车辆已经被锁定，然后确定叠层膜加湿值是否小于识别燃料电池堆中的燃料电池中的膜的加湿的预定加湿值。 如果叠层膜加湿值不小于预定的加湿值，则该方法确定环境温度是否低于预定的环境温度，如果是，则执行冷冻清洗。 如果环境温度不低于预定的环境温度，则该方法对燃料电池堆中的流动通道进行短暂的非冷冻吹扫。 该方法确定下一次控制器的唤醒时间，以确定是否应执行冻结清除。

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