SHUTDOWN STRATEGY FOR ENHANCED WATER MANAGEMENT
    1.
    发明申请
    SHUTDOWN STRATEGY FOR ENHANCED WATER MANAGEMENT 有权
    关于加强水管理的关键战略

    公开(公告)号:US20100190078A1

    公开(公告)日:2010-07-29

    申请号:US12359736

    申请日:2009-01-26

    IPC分类号: H01M8/04

    摘要: A system and method for providing a fuel cell stack purge to remove excess water during system shut-down. A compressor is operated at a shut-down speed to force water out of the cathode flow channels and draw water through the membrane from the anode flow channels so that a desired amount of water is removed from the fuel cell stack without over drying the membrane. The cathode shut-down purge flow can be introduced in the forward or reverse direction. Further, the flow of hydrogen fuel can be directed so that it flows through the anode flow channels in an opposite direction to push water out of an anode outlet manifold into the anode flow channels so that it will also be drawn through the membrane by the cathode airflow. Finally, a brief rehydration step is added after the shut-down purge to achieve the desired water content in the cells.

    摘要翻译: 一种用于在系统关闭期间提供燃料电池堆吹扫以去除多余水的系统和方法。 压缩机以关闭速度运行以迫使水从阴极流动通道中流出并从阳极流动通道吸入水通过膜,使得从燃料电池堆中除去所需量的水而不过度干燥膜。 阴极关闭清洗流可以沿正向或反向引入。 此外,可以引导氢燃料的流动,使得其沿相反方向流过阳极流动通道,以将水从阳极出口歧管推出到阳极流动通道中,使得其也将被阴极拉伸通过膜 气流。 最后,在关闭吹扫之后添加简单的补液步骤,以达到细胞中所需的水含量。

    Shutdown strategy for enhanced water management
    2.
    发明授权
    Shutdown strategy for enhanced water management 有权
    加强水管理的停机策略

    公开(公告)号:US08192885B2

    公开(公告)日:2012-06-05

    申请号:US12359736

    申请日:2009-01-26

    IPC分类号: H01M8/04

    摘要: A system and method for providing a fuel cell stack purge to remove excess water during system shut-down. A compressor is operated at a shut-down speed to force water out of the cathode flow channels and draw water through the membrane from the anode flow channels so that a desired amount of water is removed from the fuel cell stack without over drying the membrane. The cathode shut-down purge flow can be introduced in the forward or reverse direction. Further, the flow of hydrogen fuel can be directed so that it flows through the anode flow channels in an opposite direction to push water out of an anode outlet manifold into the anode flow channels so that it will also be drawn through the membrane by the cathode airflow. Finally, a brief rehydration step is added after the shut-down purge to achieve the desired water content in the cells.

    摘要翻译: 一种用于在系统关闭期间提供燃料电池堆吹扫以去除多余水的系统和方法。 压缩机以关闭速度运行以迫使水从阴极流动通道中流出并从阳极流动通道吸入水通过膜,使得从燃料电池堆中除去所需量的水而不过度干燥膜。 阴极关闭清洗流可以沿正向或反向引入。 此外,可以引导氢燃料的流动,使得其沿相反方向流过阳极流动通道,以将水从阳极出口歧管推出到阳极流动通道中,使得其也将被阴极拉伸通过膜 气流。 最后,在关闭吹扫之后添加简单的补液步骤,以达到细胞中所需的水含量。

    Anode purge and drain valve strategy for fuel cell system
    8.
    发明授权
    Anode purge and drain valve strategy for fuel cell system 有权
    燃料电池系统的阳极吹扫和排水阀策略

    公开(公告)号:US09105888B2

    公开(公告)日:2015-08-11

    申请号:US13268043

    申请日:2011-10-07

    IPC分类号: H01M8/06 H01M8/04 H01M8/10

    摘要: A combined water drain and diluent gas purge valve routes fluid from the anode side of a fuel cell to the cathode inlet. When a purge of diluent gas is requested, the valve opens, draining any liquid present in the sump of a water separation device, for example. After the liquid has drained, the diluent gas is purged. An anode bleed model using fuel injector feedback can determine the amount of gas exiting the valve, and can request the valve to close once the required amount of diluent is purged. During operation, an amount of hydrogen may exit the valve. Hydrogen passing through the valve can be catalytically consumed once it reaches the cathode electrode, causing the cathode exhaust, and the fuel cell exhaust to have a reduced hydrogen content.

    摘要翻译: 组合的排水和稀释气体吹扫阀将流体从燃料电池的阳极侧引导到阴极入口。 当要求吹扫稀释气体时,例如,阀打开,排出存在于水分离装置的贮槽中的任何液体。 液体排出后,稀释气体被清除。 使用燃料喷射器反馈的阳极排放模型可以确定离开阀的气体的量,并且一旦清除了所需量的稀释剂就可以要求阀关闭。 在运行期间,一定量的氢气可能会离开阀门。 一旦达到阴极电极,通过阀门的氢气就可以被催化消耗,导致阴极排气,并且燃料电池排气管的氢含量降低。

    ANODE PURGE AND DRAIN VALVE STRATEGY FOR FUEL CELL SYSTEM
    9.
    发明申请
    ANODE PURGE AND DRAIN VALVE STRATEGY FOR FUEL CELL SYSTEM 有权
    燃料电池系统的阳极泵和排水阀策略

    公开(公告)号:US20130089797A1

    公开(公告)日:2013-04-11

    申请号:US13268043

    申请日:2011-10-07

    IPC分类号: H01M8/06

    摘要: A combined water drain and diluent gas purge valve routes fluid from the anode side of a fuel cell to the cathode inlet. When a purge of diluent gas is requested, the valve opens, draining any liquid present in the sump of a water separation device, for example. After the liquid has drained, the diluent gas is purged. An anode bleed model using fuel injector feedback can determine the amount of gas exiting the valve, and can request the valve to close once the required amount of diluent is purged. During operation, an amount of hydrogen may exit the valve. Hydrogen passing through the valve can be catalytically consumed once it reaches the cathode electrode, causing the cathode exhaust, and the fuel cell exhaust to have a reduced hydrogen content.

    摘要翻译: 组合的排水和稀释气体吹扫阀将流体从燃料电池的阳极侧引导到阴极入口。 当要求吹扫稀释气体时,例如,阀打开,排出存在于水分离装置的贮槽中的任何液体。 液体排出后,稀释气体被清除。 使用燃料喷射器反馈的阳极排放模型可以确定离开阀的气体的量,并且一旦清除了所需量的稀释剂就可以要求阀关闭。 在运行期间,一定量的氢气可能会离开阀门。 一旦达到阴极电极,通过阀门的氢气就可以被催化消耗,导致阴极排气,并且燃料电池排气管的氢含量降低。

    Anode water separator for a fuel cell system
    10.
    发明授权
    Anode water separator for a fuel cell system 有权
    用于燃料电池系统的阳极水分离器

    公开(公告)号:US08277988B2

    公开(公告)日:2012-10-02

    申请号:US12397851

    申请日:2009-03-04

    IPC分类号: H01M8/06

    摘要: An anode reactant recycling system for a fuel cell is disclosed, the system including a hollow main body, a bleed conduit, an injector, a water separator, and a hydrophilic porous media. The anode reactant recycling system for a fuel cell is adapted to minimize a required number of components, eliminate the need for the anode heat exchanger, use a single valve for removal of condensate and reactant byproducts from the anode reactant recycling system, and provide an upstream volume for startup pressurization.

    摘要翻译: 公开了一种用于燃料电池的阳极反应物再循环系统,该系统包括中空主体,排​​放导管,注射器,水分离器和亲水性多孔介质。 用于燃料电池的阳极反应物再循环系统适于使所需数量的组件最小化,消除对阳极热交换器的需要,使用单个阀来从阳极反应物再循环系统中除去冷凝物和反应物副产物,并提供上游 启动加压量。