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    • 4. 发明授权
    • Fuel cell system with improved humidification performance
    • 具有改善加湿性能的燃料电池系统
    • US08920987B2
    • 2014-12-30
    • US12617194
    • 2009-11-12
    • Dong Hun LeeSeo Ho ChoiWoo Suk Sung
    • Dong Hun LeeSeo Ho ChoiWoo Suk Sung
    • H01M8/06H01M8/04H01M8/10
    • H01M8/0435H01M8/04007H01M8/04097H01M8/04141H01M8/04358H01M8/04768H01M2008/1095Y02E60/50
    • The present invention provides a fuel cell system, which reduces the temperature of exhaust gas discharged from a fuel cell stack to a humidifier to increase the humidity thereof when the fuel cell stack operates at high temperature and high power, and thus improves the humidification performance for air as an oxidant in the humidifier and improves the performance of the fuel cell stack.For this purpose, the present invention provides a fuel cell system in which an intercooler is installed in an exhaust gas pipe, which connects a cathode outlet of the fuel cell stack and the humidifier, to cool the exhaust gas as a water supply source of the humidifier such that the intercooler reduces the temperature of the exhaust gas and, at the same time, increase the humidity thereof, thus improving humidification performance for air as an oxidant in the humidifier.
    • 本发明提供了一种燃料电池系统,其在燃料电池堆在高温高功率下运行时,将从燃料电池堆排出的废气的温度降低到加湿器以增加其湿度,从而提高了对于 空气作为加湿器中的氧化剂并改善燃料电池堆的性能。 为此,本发明提供一种燃料电池系统,其中,中间冷却器安装在将燃料电池堆的阴极出口与加湿器连接的排气管中,将排气作为供水源 加湿器,使得中间冷却器降低废气的温度,同时增加其湿度,从而提高加湿器中作为氧化剂的空气的加湿性能。
    • 7. 发明申请
    • METHOD FOR SHUTTING DOWN FUEL CELL SYSTEM
    • 用于切断燃料电池系统的方法
    • US20110065012A1
    • 2011-03-17
    • US12625669
    • 2009-11-25
    • Sang Uk KwonNam Woo LeeJae Jun KoWoo Suk Sung
    • Sang Uk KwonNam Woo LeeJae Jun KoWoo Suk Sung
    • H01M8/04
    • H01M16/006H01M8/04253Y02E60/50
    • A method for shutting down a fuel cell system includes: determining whether an outside air temperature is below a first predetermined reference temperature when a shutdown of a fuel cell system is detected; warming up the fuel cell stack by operating balance of plant components of the fuel cell system and a stack load using the power of the fuel cell stack, while the supply of hydrogen to the fuel cell stack is normally maintained, when the outside air temperature is below the first reference temperature; removing water in the fuel cell stack by passing air supplied by an air supply system through the stack load to supply heated air to a cathode of the fuel cell stack; and shutting down the fuel cell system by cutting off the supply of air after the removal of water. The method can eliminate or reduce cold start failure.
    • 一种用于关闭燃料电池系统的方法包括:当检测到燃料电池系统的关闭时,确定外部空气温度是否低于第一预定参考温度; 通过使用燃料电池堆的功率来操作燃料电池系统的设备部件的平衡和使用燃料电池堆的功率的堆叠负载来加热燃料电池堆,同时当外部空气温度为 低于第一参考温度; 通过使通过空气供应系统供应的空气通过堆叠负载来将燃料电池堆中的水排出,以将加热的空气供给到燃料电池堆的阴极; 并且在去除水后切断空气供应来关闭燃料电池系统。 该方法可以消除或减少冷启动故障。
    • 8. 发明授权
    • Purge system for fuel cell with improved cold start performance
    • 具有改善冷启动性能的燃料电池吹扫系统
    • US08497045B2
    • 2013-07-30
    • US12872313
    • 2010-08-31
    • Jae Jun KoNam Woo LeeYoung Min KimSang Uk KwonIk Jae SonWoo Suk SungJong Hyun Lee
    • Jae Jun KoNam Woo LeeYoung Min KimSang Uk KwonIk Jae SonWoo Suk SungJong Hyun Lee
    • H01M8/04
    • H01M8/04231H01M8/04776
    • The present invention provides a purge system for a fuel cell, which can reduce the time required to thaw a frozen valve during cold start-up and reduce the whole start-up time, thus improving the cold start performance. In preferred embodiments, the present invention provides a purge system for a fuel cell with improved cold start performance, the system preferably including a main pipe connected to a purge gas outlet of a fuel cell stack to discharge a purge gas purging the fuel cell stack and impurities; an auxiliary pipe branched from the main pipe; a purge valve installed in each of the main pipe and the auxiliary pipe to perform an purge operation; a cut-off valve installed at an upstream side of the purge valve in the auxiliary pipe; and a controller for controlling the operation of the purge valves and the cut-off valve.
    • 本发明提供一种用于燃料电池的清洗系统,其可以减少在冷启动期间解冻冷冻阀所需的时间并减少整个启动时间,从而提高冷启动性能。 在优选实施例中,本发明提供了一种具有改进的冷启动性能的燃料电池的净化系统,该系统优选地包括连接到燃料电池堆的吹扫气体出口的主管,以排出吹扫燃料电池堆的吹扫气体, 杂质; 从主管分支的辅管; 安装在每个主管和辅助管中的净化阀,以执行清洗操作; 一个安装在辅助管道上的净化阀的上游侧的截止阀; 以及用于控制清洗阀和截止阀的操作的控制器。
    • 10. 发明申请
    • FUEL CELL SYSTEM WITH IMPROVED HUMIDIFICATION PERFORMANCE
    • 具有改善湿度性能的燃料电池系统
    • US20110053012A1
    • 2011-03-03
    • US12617194
    • 2009-11-12
    • Dong Hun LeeSeo Ho ChoiWoo Suk Sung
    • Dong Hun LeeSeo Ho ChoiWoo Suk Sung
    • H01M8/04
    • H01M8/0435H01M8/04007H01M8/04097H01M8/04141H01M8/04358H01M8/04768H01M2008/1095Y02E60/50
    • The present invention provides a fuel cell system, which reduces the temperature of exhaust gas discharged from a fuel cell stack to a humidifier to increase the humidity thereof when the fuel cell stack operates at high temperature and high power, and thus improves the humidification performance for air as an oxidant in the humidifier and improves the performance of the fuel cell stack.For this purpose, the present invention provides a fuel cell system in which an intercooler is installed in an exhaust gas pipe, which connects a cathode outlet of the fuel cell stack and the humidifier, to cool the exhaust gas as a water supply source of the humidifier such that the intercooler reduces the temperature of the exhaust gas and, at the same time, increase the humidity thereof, thus improving humidification performance for air as an oxidant in the humidifier.
    • 本发明提供了一种燃料电池系统,其在燃料电池堆在高温高功率下运行时,将从燃料电池堆排出的废气的温度降低到加湿器以增加其湿度,从而提高了对于 空气作为加湿器中的氧化剂并改善燃料电池堆的性能。 为此,本发明提供一种燃料电池系统,其中,中间冷却器安装在将燃料电池堆的阴极出口与加湿器连接的排气管中,将排气作为供水源 加湿器,使得中间冷却器降低废气的温度,同时增加其湿度,从而提高加湿器中作为氧化剂的空气的加湿性能。