Method and system for controlling fluid delivery in a fuel cell
    4.
    发明授权
    Method and system for controlling fluid delivery in a fuel cell 失效
    用于控制燃料电池中的流体输送的方法和系统

    公开(公告)号:US07205060B2

    公开(公告)日:2007-04-17

    申请号:US11193303

    申请日:2005-07-29

    IPC分类号: H01M8/04

    摘要: The invention relates to micro fuel cell systems whose performance is enhanced by an accurate fluid delivery system. The fluid delivery system improves reactant fluid provision to meet electrical output, while maintaining correct stoichiometries for chemical processing in a downstream reactor. The fluid delivery system includes a pressure source and a differential flow meter. The differential flow meter uses a flow restrictor and a sensor. The pressure source moves a fluid through the flow restrictor; the sensor detects differential pressure in the flow restrictor and outputs a signal that permits dynamic control of fluid flow, e.g., by controlling a pump.

    摘要翻译: 本发明涉及通过精确的流体输送系统提高其性能的微型燃料电池系统。 流体输送系统改善反应物流体供应以满足电力输出,同时保持下游反应器中化学处理的正确化学计量。 流体输送系统包括压力源和差动流量计。 差分流量计使用流量限制器和传感器。 压力源使流体移动通过限流器; 传感器检测限流器中的差压,并输出允许动态控制流体流动的信号,例如通过控制泵。

    Micro fuel cell architecture
    9.
    发明授权
    Micro fuel cell architecture 有权
    微型燃料电池架构

    公开(公告)号:US07935452B2

    公开(公告)日:2011-05-03

    申请号:US12347621

    申请日:2008-12-31

    申请人: Ian W. Kaye

    发明人: Ian W. Kaye

    摘要: The present invention relates to fuel cells and components used within a fuel cell. Heat transfer appendages are described that improve fuel cell thermal management. Each heat transfer appendage is arranged on an external portion of a bi-polar plate and permits conductive heat transfer between inner portions of the bi-polar plate and outer portions of the bi-polar plate proximate to the appendage. The heat transfer appendage may be used for heating or cooling inner portions of a fuel cell stack. Improved thermal management provided by cooling the heat transfer appendages also permits new channel field designs that distribute the reactant gases to a membrane electrode assembly. Flow buffers are described that improve delivery of reactant gases and removal of reaction products. Single plate bi-polar plates may also include staggered channel designs that reduce the thickness of the single plate.

    摘要翻译: 本发明涉及燃料电池和燃料电池内使用的部件。 描述了改进燃料电池热管理的传热附件。 每个热传递附件布置在双极板的外部部分上,并且允许双极板的内部部分和靠近附件的双极板的外部部分之间的导电热传递。 传热附件可用于加热或冷却燃料电池堆的内部部分。 通过冷却传热附件提供的改进的热管理还允许将反应气体分配到膜电极组件的新的通道场设计。 描述了流动缓冲液,其改善反应物气体的输送和除去反应产物。 单板双极板还可以包括减少单板厚度的交错通道设计。