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    Cooling subsystem for an electrochemical fuel cell system
    11.
    发明申请
    Cooling subsystem for an electrochemical fuel cell system 审中-公开
    电化学燃料电池系统的冷却子系统

    公开(公告)号：US20050271908A1

    公开(公告)日：2005-12-08

    申请号：US10860554

    申请日：2004-06-02

    申请人： Bruce Lin ,  Amy Nelson ,  Alvin Lee ,  Jean St-Pierre

    发明人： Bruce Lin ,  Amy Nelson ,  Alvin Lee ,  Jean St-Pierre

    IPC分类号： H01M8/00 ,  H01M8/04

    CPC分类号： H01M8/04302 ,  H01M8/04029 ,  H01M8/04223 ,  H01M8/04225 ,  H01M2300/0082

    摘要： A method for operating a cooling subsystem of an electrochemical fuel cell system during startup is disclosed. The method comprises directing a startup coolant through an electrochemical fuel cell stack of the fuel cell system, and directing a standard coolant through the fuel cell stack when the temperature of either the fuel cell stack or the startup coolant reaches a first predetermined temperature, wherein the heat capacity of the startup coolant is different from than the heat capacity of the standard coolant. Cooling subsystems are also disclosed.

    摘要翻译： 公开了一种在启动期间操作电化学燃料电池系统的冷却子系统的方法。 该方法包括：当燃料电池堆或启动冷却剂的温度达到第一预定温度时，引导启动冷却剂通过燃料电池系统的电化学燃料电池堆，以及引导标准冷却剂通过燃料电池堆，其中 起动冷却液的热容量与标准冷却液的热容量不同。 还公开了冷却子系统。

    METHODS AND APPARATUS FOR IMPROVING THE COLD STARTING CAPABILITY OF A FUEL CELL
    13.
    发明申请
    METHODS AND APPARATUS FOR IMPROVING THE COLD STARTING CAPABILITY OF A FUEL CELL 审中-公开
    改进燃料电池冷启动能力的方法和装置

    公开(公告)号：US20070072016A1

    公开(公告)日：2007-03-29

    申请号：US11533702

    申请日：2006-09-20

    申请人： Jean St-Pierre ,  NengYou Jia ,  Marian Geest ,  Abderrahmane Atbi ,  Herwig Haas

    发明人： Jean St-Pierre ,  NengYou Jia ,  Marian Geest ,  Abderrahmane Atbi ,  Herwig Haas

    IPC分类号： H01M8/00 ,  H01M8/04

    CPC分类号： H01M8/04156 ,  H01M8/0258 ,  H01M8/0267 ,  H01M8/0271 ,  H01M8/04007 ,  H01M8/04089 ,  H01M8/04223 ,  H01M8/04303 ,  H01M8/04328 ,  H01M8/04335 ,  H01M8/04343 ,  H01M8/0435 ,  H01M8/04358 ,  H01M8/04388 ,  H01M8/04395 ,  H01M8/04507 ,  H01M8/04514 ,  H01M8/04559 ,  H01M8/04649 ,  H01M8/04828 ,  H01M8/04955 ,  H01M8/04992 ,  H01M8/1007 ,  H01M8/241 ,  H01M8/2465

    摘要： Apparatus and methods of ceasing operation of an electric power generating system improve the cold starting capability of the system. The system comprises a fuel cell stack connectable to an external circuit for supplying power to the external circuit. The stack comprises at least one solid polymer fuel cell, and the system further comprises a fuel passage for directing a fuel stream through the stack and an oxidant passage for directing an oxidant stream through the stack, a sensor assembly connected to the stack for monitoring a parameter indicative of stack performance, a controller for controlling at least one stack operating parameter, and a control system communicative with the sensor assembly and stack operating parameter controller. The method comprises adjusting at least one stack operating parameter to cause the stack to operate under a drying condition that causes a net outflux of water from the stack, operating the stack under the drying condition until the water content in the stack has been reduced, and interrupting supply of power from the stack to the external circuit.

    摘要翻译： 发电系统停止运转的装置和方法提高了系统的冷启动能力。 该系统包括可连接到用于向外部电路供电的外部电路的燃料电池堆。 所述堆叠包括至少一个固体聚合物燃料电池，并且所述系统还包括用于引导燃料流通过所述堆叠的燃料通道和用于引导氧化剂流通过所述堆的氧化剂通道，连接到所述堆的传感器组件，用于监测 指示堆叠性能的参数，用于控制至少一个堆叠操作参数的控制器以及与传感器组件和堆叠操作参数控制器通信的控制系统。 所述方法包括调整至少一个堆叠操作参数，以使得堆叠在干燥条件下操作，该干燥条件导致来自堆叠的水的净溢出，在干燥条件下操作堆叠，直到堆叠中的水含量已经减少，以及 中断从堆栈向外部电路供电。

    ANTIFREEZE COOLING SUBSYSTEM
    14.
    发明申请
    ANTIFREEZE COOLING SUBSYSTEM 审中-公开
    防冻冷却子系统

    公开(公告)号：US20080003474A1

    公开(公告)日：2008-01-03

    申请号：US11770009

    申请日：2007-06-28

    申请人： Jean St-Pierre ,  Stephen Campbell ,  Mark Watson ,  Michael Sexsmith

    发明人： Jean St-Pierre ,  Stephen Campbell ,  Mark Watson ,  Michael Sexsmith

    IPC分类号： H01M8/04 ,  H01M8/10

    CPC分类号： H01M8/04044 ,  B60L58/30 ,  B60L58/33 ,  B60L58/34 ,  F01P11/06 ,  F01P2011/066 ,  F01P2025/80 ,  H01M8/04029 ,  H01M2008/1095 ,  H01M2300/0082 ,  Y02T90/34

    摘要： Liquid cooled systems having coolant circulation loops must often operate in below freezing conditions. For instance, in various applications certain fuel cell systems must be able to tolerate repeated shutdown and storage in below freezing conditions. Conventional glycol-based coolants typically used for internal combustion engines are generally unsuitable for use in the associated fuel cell cooling subsystems due to the presence of additives and/or inhibitors which are normally included to deal with problems relating to decomposition of the glycol. With additives or inhibitors present, the coolant conductivity can be sufficiently high as to result in electrical shorting or corrosion problems. However, provided the purity of the coolant is maintained, a pure glycol and water coolant mixture may be used as a fuel cell system coolant to obtain suitable antifreeze protection. Adequate purity can be maintained by including an ion exchange resin unit in the cooling subsystem.

    摘要翻译： 具有冷却剂循环回路的液体冷却系统必须经常在低于冰点条件下运行。 例如，在各种应用中，某些燃料电池系统必须能够在低于冰点条件下耐受重复停机和储存。 通常用于内燃机的常规的基于二醇的冷却剂通常不适合用于相关联的燃料电池冷却子系统中，这是由于通常包括用于处理与二醇分解有关的问题的添加剂和/或抑制剂的存在。 存在的添加剂或抑制剂时，冷却剂导电性可以足够高以致导致电短路或腐蚀问题。 然而，只要保持冷却剂的纯度，可以使用纯二醇和水冷却剂混合物作为燃料电池系统冷却剂以获得合适的防冻保护。 通过在冷却子系统中包括离子交换树脂单元可以保持足够的纯度。

    Antifreeze cooling subsystem
    15.
    发明授权
    Antifreeze cooling subsystem 有权
    防冻冷却子系统

    公开(公告)号：US07303831B2

    公开(公告)日：2007-12-04

    申请号：US10865630

    申请日：2004-06-10

    申请人： Jean St-Pierre ,  Stephen A Campbell ,  Mark K Watson ,  Michael P Sexsmith

    发明人： Jean St-Pierre ,  Stephen A Campbell ,  Mark K Watson ,  Michael P Sexsmith

    IPC分类号： H01M8/04

    CPC分类号： B60L11/1892 ,  B60L11/1881 ,  B60L11/1894 ,  F01P11/06 ,  F01P2011/066 ,  F01P2025/80 ,  H01M8/04029 ,  H01M8/04044 ,  H01M2008/1095 ,  H01M2300/0082 ,  Y02T90/34

    摘要： Liquid cooled systems having coolant circulation loops must often operate in below freezing conditions. For instance, in various applications certain fuel cell systems must be able to tolerate repeated shutdown and storage in below freezing conditions. Conventional glycol-based coolants typically used for internal combustion engines are generally unsuitable for use in the associated fuel cell cooling subsystems due to the presence of additives and/or inhibitors which are normally included to deal with problems relating to decomposition of the glycol. With additives or inhibitors present, the coolant conductivity can be sufficiently high as to result in electrical shorting or corrosion problems. However, provided the purity of the coolant is maintained, a pure glycol and water coolant mixture may be used as a fuel cell system coolant to obtain suitable antifreeze protection. Adequate purity can be maintained by including an ion exchange resin unit in the cooling subsystem.

    摘要翻译： 具有冷却剂循环回路的液体冷却系统必须经常在低于冰点条件下运行。 例如，在各种应用中，某些燃料电池系统必须能够在低于冰点条件下耐受重复停机和储存。 通常用于内燃机的常规的基于二醇的冷却剂通常不适合用于相关联的燃料电池冷却子系统中，这是由于通常包括用于处理与二醇分解有关的问题的添加剂和/或抑制剂的存在。 存在的添加剂或抑制剂时，冷却剂导电性可以足够高以致导致电短路或腐蚀问题。 然而，只要保持冷却剂的纯度，可以使用纯二醇和水冷却剂混合物作为燃料电池系统冷却剂以获得合适的防冻保护。 通过在冷却子系统中包括离子交换树脂单元可以保持足够的纯度。

    Apparatus for improving the cold starting capability of an electrochemical fuel cell
    16.
    发明授权
    Apparatus for improving the cold starting capability of an electrochemical fuel cell 有权
    用于提高电化学燃料电池的冷启动能力的装置

    公开(公告)号：US07482085B2

    公开(公告)日：2009-01-27

    申请号：US10833228

    申请日：2004-04-26

    申请人： Joy A Roberts ,  Jean St-Pierre ,  Marian E van der Geest ,  Abderrahmane Atbi ,  Nicholas J Fletcher

    发明人： Joy A Roberts ,  Jean St-Pierre ,  Marian E van der Geest ,  Abderrahmane Atbi ,  Nicholas J Fletcher

    IPC分类号： H01M8/04

    CPC分类号： H01M8/04225 ,  H01M8/04007 ,  H01M8/04029 ,  H01M8/04119 ,  H01M8/04156 ,  H01M8/04223 ,  H01M8/241 ,  H01M8/2457 ,  H01M2300/0082

    摘要： An electric power generation system has elements that improve the cold start capability and freeze tolerance of a constituent fuel cell stack cooperate to reduce the amount of water remaining within the passages of the stack. The system includes a purge system that is connectable to the oxidant supply, fuel supply and/or coolant passages upstream of the stack. When the stack is shut down, the stack is disconnected from an external circuit, and purge fluid is transmitted by the purge system through the stack before the stack falls below the freezing point of water. In systems where fuel and/or oxidant streams are humidified prior to entry into the stack, a humidifier bypass system may be provided in place of the purge system. The humidifier bypass system transmits reactant fluid to the stack in fluid isolation from the humidifier, so that the inlet reactant streams are unhumidified.

    摘要翻译： 发电系统具有提高组分燃料电池堆的冷启动能力和冷冻公差的元件，其协作以减少堆叠通道内剩余的水量。 该系统包括可连接到堆叠上游的氧化剂供应源，燃料供应源和/或冷却剂通道的净化系统。 当堆叠关闭时，堆叠与外部电路断开连接，并且在堆叠降低到水的冰点之前，净化系统通过堆叠传输净化流体。 在燃料和/或氧化剂流在进入堆叠之前被加湿的系统中，可以提供加湿器旁路系统来代替净化系统。 加湿器旁路系统将反应物流体与加湿器以流体隔离的方式将反应物流体传送到堆叠中，使得入口反应物流不加湿。