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1. 发明申请

US20050064255A1 Fuel cell system with fluid stream recirculation 有权
标题翻译：燃料电池系统与流体流再循环
公开(公告)号：US20050064255A1
公开(公告)日：2005-03-24
申请号：US10666919
申请日：2003-09-18
申请人： Janusz Blaszczyk , Rainer Schmidt , Wolfram Fleck , Paul Paterson
发明人： Janusz Blaszczyk , Rainer Schmidt , Wolfram Fleck , Paul Paterson
IPC分类号： F04F5/46 , H01M8/04 , H01M8/18 , H01M2/00 , H01M2/02 , H01M2/14 , H01M8/00 , H01M8/10 , H01M8/12
CPC分类号： F04F5/466 , H01M8/04097 , H01M8/04104 , H01M2250/20 , Y02T90/32
摘要： An electric power generation system has a multiple jet ejector assembly for recirculating an exhaust stream. The system includes a fuel cell stack having a reactant stream inlet, a reactant stream outlet and at least one fuel cell. A pressurized reactant supply provides a reactant to the multiple jet ejector assembly. The multiple jet ejector assembly includes two motive flow inlets, one suction inlet, fluidly connected to the reactant stream outlet to receive a recirculated flow from the fuel cell stack, and one discharge outlet, fluidly connected to the reactant stream inlet to provide an inlet stream to the fuel cell stack. A pressure regulator is interposed between the pressurized reactant supply and the two motive flow inlets of the multiple jet ejector assembly. A first solenoid valve is interposed between the first motive flow inlet and the regulator. A second solenoid valve is interposed between the second motive flow inlet and the regulator. A by-pass line connects the pressurized reactant supply to the second motive flow inlet. A by-pass solenoid valve is interposed in the bypass line between the pressurized reactant supply and the second motive flow inlet. During low-load operating conditions, the second solenoid valve is open and the first and by-pass solenoid valves are closed, so that pressurized reactant, controlled by the regulator, is directed to the second motive flow inlet. During high-load operating conditions, the second solenoid valve is closed and the first and by-pass solenoid valves are open, so that pressurized reactant, controlled by the regulator, is directed to the first motive flow inlet and pressurized reactant, not controlled by the regulator, is directed to the second motive flow inlet.
摘要翻译：发电系统具有用于再循环排气流的多喷射喷射器组件。该系统包括具有反应物流入口，反应物流出口和至少一个燃料电池的燃料电池堆。加压的反应物供应源为多喷射喷射器组件提供反应物。多个喷射器组件包括两个动力流入口，一个吸入口，流体连接到反应物流出口以接收来自燃料电池堆的再循环流，以及一个排放出口，流体连接到反应物流入口以提供入口流到燃料电池堆。压力调节器介于加压反应物料和多喷射器组件的两个动力流入口之间。第一电磁阀介于第一动力流入口和调节器之间。第二电磁阀介于第二动力流入口和调节器之间。旁路管线将加压的反应物源连接到第二动力流入口。旁通电磁阀插入在加压反应物供应与第二动力流入口之间的旁路管路中。在低负载运行条件下，第二电磁阀打开，第一和旁路电磁阀关闭，由调节器控制的加压反应物被引导到第二动力流入口。在高负载运行条件下，第二电磁阀关闭，第一和旁通电磁阀打开，由调节器控制的加压反应物被引导到第一动力流入口和加压反应物，不受调节器被引导到第二动力流入口。

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