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1. 发明授权

US07803497B2 Fuel cell stack that utilizes an actuator to switch between interdigitated and straight flow for optimizing performance 有权
标题翻译：燃料电池堆，利用执行器在叉指和直流之间切换，以优化性能
公开(公告)号：US07803497B2
公开(公告)日：2010-09-28
申请号：US11341285
申请日：2006-01-27
申请人： Thomas W Tighe , Mark Mathias
发明人： Thomas W Tighe , Mark Mathias
IPC分类号： H01M8/02 , H01M8/00
CPC分类号： H01M8/0258 , H01M8/241 , H01M8/242 , H01M8/2457 , H01M8/2483 , H01M2008/1095 , H01M2250/20 , Y02T90/32
摘要： A fuel cell stack that includes an actuating device or devices for selectively providing interdigitated reactant gas flow and straight reactant gas flow through reactant gas flow channels to reduce water accumulation in the diffusing media layers of the stack. In one embodiment, the fuel cell stack employs internal actuators that selectively close the inlet end of every other flow channel and the outlet end of every other opposite flow channel to provide the interdigitated flow. In another embodiment, the interdigitated flow is provided by external actuation where two inlet manifolds and two outlet manifolds are provided. One input manifold is closed to close the input ends of every other flow channel and one outlet manifold is closed to close the output ends of every other opposite flow channel.
摘要翻译：一种燃料电池堆，其包括致动装置或用于选择性地提供交错的反应气体流和通过反应气体流动通道的直反应气体流的装置，以减少堆叠的扩散介质层中的积水。在一个实施例中，燃料电池堆采用内部致动器，其选择性地关闭每隔一个流动通道的入口端和每隔一个相对的流动通道的出口端，以提供叉指流。在另一个实施例中，通过外部致动提供交错流，其中提供两个入口歧管和两个出口歧管。一个输入歧管关闭以关闭每个其他流动通道的输入端，一个出口歧管关闭以关闭每隔一个相对流动通道的输出端。

2. 发明授权

US07682720B2 Diagnostic method for detecting a coolant pump failure in a fuel cell system by temperature measurement 有权
标题翻译：用于通过温度测量来检测燃料电池系统中的冷却剂泵故障的诊断方法
公开(公告)号：US07682720B2
公开(公告)日：2010-03-23
申请号：US11266606
申请日：2005-11-03
申请人： Thomas W Tighe , Glenn W. Skala
发明人： Thomas W Tighe , Glenn W. Skala
IPC分类号： H01M8/04
CPC分类号： H01M8/04029
摘要： A technique for determining whether a cooling fluid pump used for pumping a cooling fluid through a fuel cell stack has failed. The technique includes measuring the temperature of the cooling fluid at the output from the stack and/or measuring the cathode exhaust gas temperature as close as possible to the cathode outlet of the stack. The measured temperature is compared to a temperature that would be expected under the current operating conditions of the fuel cell system in a controller. If the difference between the measuring temperature and the expected temperature is large enough, then the controller provides a warning signal of pump failure, and also possibly reduces the stack outlet power.
摘要翻译：用于确定用于泵送通过燃料电池堆的冷却流体的冷却流体泵是否失败的技术。该技术包括测量来自堆叠的输出处的冷却流体的温度和/或测量阴极排气温度尽可能接近堆叠的阴极出口。将测量的温度与在控制器中的燃料电池系统的当前操作条件下预期的温度进行比较。如果测量温度和预期温度之间的差异足够大，则控制器提供泵故障的警告信号，也可能降低堆叠出口功率。

3. 发明授权

US07601451B2 Variable active area for fuel cell 有权
标题翻译：燃料电池可变有效面积
公开(公告)号：US07601451B2
公开(公告)日：2009-10-13
申请号：US10842789
申请日：2004-05-11
申请人： Thomas W Tighe
发明人： Thomas W Tighe
IPC分类号： H01M2/14
CPC分类号： H01M8/04156 , H01M8/0258 , H01M8/0263 , H01M8/241 , H01M8/2483 , H01M8/2484
摘要： An electrochemical fuel cell stack assembly having a variable active area. The fuel cell stack uses a blocking member to selectively block the flow of reactants through channels of the flow fields of the anode and/or cathode flow paths. Blocking portions of the flow paths allows the fuel cell stack to maintain reactant flow velocities in a desired predetermined range. This enables the control and variation of the active area of the fuel cell, enhancing water management of the fuel cell stack.
摘要翻译：一种具有可变有效面积的电化学燃料电池堆组件。燃料电池堆使用阻挡构件来选择性地通过阳极和/或阴极流动路径的流场的通道阻挡反应物的流动。流动路径的阻塞部分允许燃料电池堆将反应物流速保持在期望的预定范围内。这样可以控制和改变燃料电池的有效面积，从而增强燃料电池堆的水管理。

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