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1. 发明授权

US4824738A Controlling oxygen concentrations in fuel cell cooling water loops 失效
标题翻译：控制燃料电池冷却水循环中的氧浓度
公开(公告)号：US4824738A
公开(公告)日：1989-04-25
申请号：US157541
申请日：1988-02-12
申请人： Robert J. Misage , Daniel L. D'Aquila , Albert P. Grasso
发明人： Robert J. Misage , Daniel L. D'Aquila , Albert P. Grasso
IPC分类号： H01M8/04 , H01M2/32
CPC分类号： H01M8/04029
摘要： In order to achieve good stack water chemistry and minimize corrosion in a fuel cell stack water cooling loop, the oxygen concentration in the water must remain within a relatively narrow range. Stacks using steam separators produce water in the separators which is relatively devoid of oxygen. Makeup water is used to replace the steam lost from the separator, which makeup water is relatively rich in oxygen. The flow rates of the makeup water and steam separator water are controlled to produce a proper oxygen concentration in the recirculated coolant water. Some of the makeup water will be added directly into the steam separator so that it will be stripped of oxygen and the rest will be added subsequent to the steam separator.

2. 发明授权

US4824740A Fuel cell stack cooling system 失效
标题翻译：燃料电池堆冷却系统
公开(公告)号：US4824740A
公开(公告)日：1989-04-25
申请号：US198604
申请日：1988-05-09
申请人： Martin L. Abrams , Daniel L. D'Aquila , Glenn W. Scheffler
发明人： Martin L. Abrams , Daniel L. D'Aquila , Glenn W. Scheffler
IPC分类号： H01M8/04 , H01M2/00
CPC分类号： H01M8/04029 , H01M8/04119
摘要： Fuel Cell stack coolant water is processed by moving the two-phase water/steam coolant exhaust through a steam separator wherein the water phase is separated from the steam phase. The water phase is then moved through a heat exchanger where its temperature is lowered to a subcooled level which is below the coolant operating temperature in the stack. A flow control valve is associated with the coolant heat exchanger to regulate water flow through and/or around the heat exchanger depending on the temperature of the water which leaves the steam separator. By subcooling the coolant before it reenters the stack, a lessening of electrolyte loss through evaporation is achieved. By eliminating steam condensation as a form of system heat rejection, system engineering is simplified and construction costs are lowered.
摘要翻译：燃料电池堆冷却水通过将两相水/蒸汽冷却剂排气通过蒸汽分离器移动来处理，其中水相与蒸汽相分离。然后将水相移动通过热交换器，其中其温度降低到低于堆中的冷却剂操作温度的过冷水平。流量控制阀与冷却剂热交换器相关联，以根据离开蒸汽分离器的水的温度调节通过热交换器和/或周围的水流。通过在冷却剂重新进入堆叠之前过冷却，实现通过蒸发减少电解质损失。通过消除蒸汽冷凝作为系统排热的一种形式，简化了系统工程，降低了施工成本。

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