知搜-全球专利检索

  1. Login
  2. Sign Up

Search Results

4 records (took 0.011 seconds)

    Fuel cell flooding detection
    1.
    发明授权
    Fuel cell flooding detection 有权
    燃料电池淹没检测

    公开(公告)号：US07781118B2

    公开(公告)日：2010-08-24

    申请号：US10774964

    申请日：2004-02-09

    Applicant: Thomas A Trabold ,  Steven R Falta

    Inventor： Thomas A Trabold ,  Steven R Falta

    IPC: H01M8/04

    CPC classification number: H01M8/04432 ,  H01M8/04104 ,  H01M8/04126 ,  H01M8/04291 ,  H01M8/04753 ,  H01M8/04835 ,  H01M8/04992 ,  H01M8/0612

    Abstract: A pressure fluctuation parameter (for example, a statistical indicator such as a root-mean-square value) from a set of differential pressure measurements between the inlet and the outlet of a fuel cell reactant flow channel carrying vaporized water is used to define flooding onset. Vaporized water in the flow of gas (air) through the flow channels is controlled in response to the parameter. Benefits include efficient operation (i.e., minimized stoichiometry) and effective management of rapid power transients in a fuel cell.

    Abstract translation: 来自承载蒸发水的燃料电池反应物流动通道的入口和出口之间的一组差压测量值的压力波动参数（例如统计指标，如均方根值）用于定义洪水开始 。 根据参数控制通过流动通道的气体（空气）流中的汽化水。 优点包括有效操作（即最小化学计量）和有效管理燃料电池中的快速功率瞬变。

    Flow field geometries for improved water management
    2.
    发明授权
    Flow field geometries for improved water management 有权
    流场几何改善水管理

    公开(公告)号：US07087337B2

    公开(公告)日：2006-08-08

    申请号：US10772850

    申请日：2004-02-05

    Applicant: Thomas A Trabold ,  Jon P Owejan

    Inventor： Thomas A Trabold ,  Jon P Owejan

    IPC: H01M2/00 ,  H01M2/14 ,  H01M8/02 ,  H01M8/10

    CPC classification number: H01M8/04156 ,  H01M8/0206 ,  H01M8/0228 ,  H01M8/026 ,  H01M2008/1095

    Abstract: An assembly for a fuel cell including an electrically conductive fluid distribution element including a flow field disposed on a surface of the element, wherein the flow field includes a plurality of channels for carrying the gaseous reactants of the fuel cell. The assembly also includes an electrically conductive member disposed at the surface of the element to serve as a gas diffusion media. The channels of the element include a plurality of sidewalls formed in various orientations, and the orientations of the side-walls form a cross-sectional geometry of the channel such that water collection regions are formed at an interface of the electrically conductive fluid distribution element and the electrically conductive member, and at a bottom portion of the channel.

    Abstract translation: 一种用于燃料电池的组件，包括导电流体分配元件，其包括设置在元件表面上的流场，其中所述流场包括用于承载燃料电池的气态反应物的多个通道。 组件还包括设置在元件的表面处以用作气体扩散介质的导电构件。 元件的通道包括以各种取向形成的多个侧壁，并且侧壁的取向形成通道的横截面几何形状，使得水收集区形成在导电流体分配元件和 导电构件，以及通道的底部。

Patent Agency Ranking