Fuel cell system having inlet fuel to more than one and/or recycle to less than all of the fuel fields
    1.
    发明授权
    Fuel cell system having inlet fuel to more than one and/or recycle to less than all of the fuel fields 有权
    燃料电池系统具有多于一个的入口燃料和/或循环到少于所有的燃料场

    公开(公告)号:US07291416B2

    公开(公告)日:2007-11-06

    申请号:US10765735

    申请日:2004-01-27

    IPC分类号: H01M8/24

    摘要: Fuel cell power plants (19, 47, 60, 86, 102, 112, 121) include recycle fuel from a fuel exit (29) of the last fuel flow field (23, 52, 64, 89) of a series of flow fields (20-23; 49-52; 61-64; 87-89) labeled M−N through M, applied either to the Mth flow fields or both the Mth and the (M−1)th flow fields. The fuel recycle impeller is a blower (30), an ejector (30b) or an electrochemical hydrogen pump (30c). Fuel from a source (77) may be applied both to the first fuel flow field (87) and an additional fuel flow field (88, 74, 75, 89) of a series of flow fields to reduce pressure drop and flow rate requirements in the first of the series of flow fields and assure more fuel in the additional fuel flow field. Flow to the additional fuel flow field may be controlled by voltage (126) in such field or fuel content (128) of its exhaust. Transient fuel volume is provided by a tank (125).

    摘要翻译: 燃料电池发电厂(19,47,60,68,102,112,121)包括来自一系列流场的最后燃料流场(23,52,64,89)的燃料出口(29)的再循环燃料 (20-23; 49-52; 61-64; 87-89)标记为MN至M,应用于第M个流场或第M和第(M-1)个流场。 燃料循环叶轮是鼓风机(30),喷射器(30b)或电化学氢泵(30c)。 来自源(77)的燃料可以同时施加到一系列流场的第一燃料流场(87)和附加燃料流场(88,74,75,98),以减少压降和流速要求 第一个流场系列,并确保更多的燃料在额外的燃油流场。 流到附加燃料流场可以通过其排气的这种场或燃料含量(128)中的电压(126)来控制。 瞬时燃料量由罐(125)提供。