Fuel cell operation to minimize RH cycles to improve durability
    1.
    发明授权
    Fuel cell operation to minimize RH cycles to improve durability 有权
    燃料电池操作以最小化RH周期以提高耐久性

    公开(公告)号:US07597975B2

    公开(公告)日:2009-10-06

    申请号:US11434385

    申请日:2006-05-15

    IPC分类号: H01M8/00 H01M8/04 G05D22/00

    摘要: A fuel cell system that includes an over-arching algorithm for providing a strategy that reduces relative humidity cycling of the cathode outlet gas between wet and dry operation to extend the useful life of the membrane. The algorithm receives sensor signals indicative of operating parameters of the fuel cell system. The algorithm maintains a cathode exhaust gas relative humidity in a wet operating mode if the operating parameters of the fuel cell system are able to sustain the cathode gas relative humidity above a first predetermined value, and maintains the cathode exhaust gas relative humidity in a dry operating mode if the operating parameters of the fuel cell system are able to sustain the cathode gas relative humidity below a second predetermined value.

    摘要翻译: 一种燃料电池系统,其包括用于提供在湿和干运行之间减少阴极出口气体的相对湿度循环以延长膜的使用寿命的策略的叠加算法。 该算法接收指示燃料电池系统的操作参数的传感器信号。 如果燃料电池系统的操作参数能够将阴极气体的相对湿度维持在高于第一预定值的情况下,该算法在湿式操作模式中保持阴极排气相对湿度,并且将阴极废气相对湿度保持在干燥操作 如果燃料电池系统的操作参数能够将阴极气体相对湿度维持在低于第二预定值的情况下。

    Relative humidity control for a fuel cell
    2.
    发明授权
    Relative humidity control for a fuel cell 有权
    燃料电池的相对湿度控制

    公开(公告)号:US08158288B2

    公开(公告)日:2012-04-17

    申请号:US13092223

    申请日:2011-04-22

    IPC分类号: H01M8/06 H01M8/04

    摘要: A model uses various operating characteristics of a fuel cell to predict the relative humidity profile that is occurring within the fuel cell as a function of the reaction progress. The model is used to predict the relative humidity profile that will occur in response to changes to one or more of the operating characteristics of the fuel cell. A high frequency resistance of the fuel cell can also be used as a measure that is indicative of the humidity within the fuel cell. The model and/or the high frequency resistance can be used in a closed-loop feedback system to control the operation of the fuel cell to maintain the humidification of the MEA and fuel cells within a desired range to achieve a desired fuel cell performance.

    摘要翻译: 模型使用燃料电池的各种操作特性来预测在燃料电池内发生的相对湿度分布作为反应进程的函数。 该模型用于预测响应于燃料电池的一个或多个操作特性的变化而发生的相对湿度分布。 燃料电池的高频电阻也可以用作指示燃料电池内的湿度的措施。 该模型和/或高频阻抗可以用在闭环反馈系统中以控制燃料电池的操作,以将MEA和燃料电池的加湿保持在期望的范围内,以实现期望的燃料电池性能。

    Relative Humidity Control For A Fuel Cell
    3.
    发明申请
    Relative Humidity Control For A Fuel Cell 有权
    燃料电池相对湿度控制

    公开(公告)号:US20110207010A1

    公开(公告)日:2011-08-25

    申请号:US13092223

    申请日:2011-04-22

    IPC分类号: H01M8/04

    摘要: A model uses various operating characteristics of a fuel cell to predict the relative humidity profile that is occurring within the fuel cell as a function of the reaction progress. The model is used to predict the relative humidity profile that will occur in response to changes to one or more of the operating characteristics of the fuel cell. A high frequency resistance of the fuel cell can also be used as a measure that is indicative of the humidity within the fuel cell. The model and/or the high frequency resistance can be used in a closed-loop feedback system to control the operation of the fuel cell to maintain the humidification of the MEA and fuel cells within a desired range to achieve a desired fuel cell performance.

    摘要翻译: 模型使用燃料电池的各种操作特性来预测在燃料电池内发生的相对湿度分布作为反应进程的函数。 该模型用于预测响应于燃料电池的一个或多个操作特性的变化而发生的相对湿度分布。 燃料电池的高频电阻也可以用作指示燃料电池内的湿度的措施。 该模型和/或高频阻抗可以用在闭环反馈系统中以控制燃料电池的操作,以将MEA和燃料电池的加湿保持在期望的范围内,以实现期望的燃料电池性能。

    Relative humidity control for a fuel cell
    4.
    发明授权
    Relative humidity control for a fuel cell 有权
    燃料电池的相对湿度控制

    公开(公告)号:US07976991B2

    公开(公告)日:2011-07-12

    申请号:US11130825

    申请日:2005-05-17

    IPC分类号: H01M8/04 H01M8/00

    摘要: A model uses various operating characteristics of a fuel cell to predict the relative humidity profile that is occurring within the fuel cell as a function of the reaction progress. The model is used to predict the relative humidity profile that will occur in response to changes to one or more of the operating characteristics of the fuel cell. A high frequency resistance of the fuel cell can also be used as a measure that is indicative of the humidity within the fuel cell. The model and/or the high frequency resistance can be used in a closed-loop feedback system to control the operation of the fuel cell to maintain the humidification of the MEA and fuel cells within a desired range to achieve a desired fuel cell performance.

    摘要翻译: 模型使用燃料电池的各种操作特性来预测在燃料电池内发生的相对湿度分布作为反应进程的函数。 该模型用于预测响应于燃料电池的一个或多个操作特性的变化而发生的相对湿度分布。 燃料电池的高频电阻也可以用作指示燃料电池内的湿度的措施。 该模型和/或高频阻抗可以用在闭环反馈系统中以控制燃料电池的操作,以将MEA和燃料电池的加湿保持在期望的范围内,以实现期望的燃料电池性能。

    ANODE ACCUMULATION TANK WITH HIGH NITROGEN CONCENTRATION BLEED FOR A FUEL CELL STACK FUEL DELIVERY SYSTEM
    6.
    发明申请
    ANODE ACCUMULATION TANK WITH HIGH NITROGEN CONCENTRATION BLEED FOR A FUEL CELL STACK FUEL DELIVERY SYSTEM 有权
    用于燃料电池堆栈燃料输送系统的高氮浓度的阳极累积罐

    公开(公告)号:US20080187793A1

    公开(公告)日:2008-08-07

    申请号:US11671017

    申请日:2007-02-05

    IPC分类号: H01M8/04

    摘要: A fuel cell system is described having a fuel cell stack including a PEM fuel cell having an anode and a cathode, the fuel cell stack further including an anode outlet and an anode inlet, a hydrogen storage device in communication with the anode inlet and configured to supply a hydrogen gas to the fuel cell stack, and an accumulation reservoir in communication with the anode outlet of the fuel cell stack. The accumulation reservoir is configured to accumulate a quantity of water and an exhaust stream including the hydrogen gas during a purge event and resupply the exhaust stream to the fuel cell stack after the purge event is complete. The accumulation reservoir can be a second fuel cell stack. A method of operating the fuel cell system is also provided.

    摘要翻译: 燃料电池系统被描述为具有包括具有阳极和阴极的PEM燃料电池的燃料电池堆,燃料电池堆还包括阳极出口和阳极入口,与阳极入口连通的氢存储装置, 向燃料电池堆供应氢气,以及与燃料电池堆的阳极出口连通的蓄积池。 累积储存器被配置为在净化事件期间累积一定量的水和包括氢气的废气流,并且在清除事件完成之后将废气流重新供应到燃料电池堆。 蓄积容器可以是第二燃料电池堆。 还提供了操作燃料电池系统的方法。

    Anode accumulation tank with high nitrogen concentration bleed for a fuel cell stack fuel delivery system
    7.
    发明授权
    Anode accumulation tank with high nitrogen concentration bleed for a fuel cell stack fuel delivery system 有权
    用于燃料电池堆燃料输送系统的具有高氮浓度的阳极积聚罐

    公开(公告)号:US07960062B2

    公开(公告)日:2011-06-14

    申请号:US11671017

    申请日:2007-02-05

    IPC分类号: H01M8/04

    摘要: A fuel cell system is described having a fuel cell stack including a PEM fuel cell having an anode and a cathode, the fuel cell stack further including an anode outlet and an anode inlet, a hydrogen storage device in communication with the anode inlet and configured to supply a hydrogen gas to the fuel cell stack, and an accumulation reservoir in communication with the anode outlet of the fuel cell stack. The accumulation reservoir is configured to accumulate a quantity of water and an exhaust stream including the hydrogen gas during a purge event and resupply the exhaust stream to the fuel cell stack after the purge event is complete. The accumulation reservoir can be a second fuel cell stack. A method of operating the fuel cell system is also provided.

    摘要翻译: 燃料电池系统被描述为具有包括具有阳极和阴极的PEM燃料电池的燃料电池堆,燃料电池堆还包括阳极出口和阳极入口,与阳极入口连通的氢存储装置, 向燃料电池堆供应氢气,以及与燃料电池堆的阳极出口连通的蓄积池。 累积储存器被配置为在净化事件期间累积一定量的水和包括氢气的废气流,并且在清除事件完成之后将废气流重新供应到燃料电池堆。 蓄积容器可以是第二燃料电池堆。 还提供了操作燃料电池系统的方法。

    Passive water drain
    9.
    发明授权
    Passive water drain 有权
    被动排水

    公开(公告)号:US08431278B2

    公开(公告)日:2013-04-30

    申请号:US12701864

    申请日:2010-02-08

    IPC分类号: H01M8/04 F16T1/34

    摘要: A passive water drain for removal of water from a fuel cell system is disclosed, the drain including a main body having a cavity formed therein, an interior element, and a hydrophilic porous media. The passive water drain is adapted to simplify the anode reactant recycler, eliminate the need for bypass valve systems used to remove water from the cathode exhaust, and eliminate the need for condensate draining systems used for compressed air entering the cathode.

    摘要翻译: 公开了一种用于从燃料电池系统去除水的被动排水口,排水口包括其中形成有空腔的主体,内部元件和亲水性多孔介质。 被动排水装置适用于简化阳极反应物再循环器,不需要用于从阴极排气口移除水的旁路阀系统,并且不需要用于进入阴极的压缩空气的冷凝水排放系统。

    PASSIVE WATER DRAIN
    10.
    发明申请
    PASSIVE WATER DRAIN 有权
    被动排水

    公开(公告)号:US20110195344A1

    公开(公告)日:2011-08-11

    申请号:US12701864

    申请日:2010-02-08

    IPC分类号: H01M8/04 F16K99/00

    摘要: A passive water drain for removal of water from a fuel cell system is disclosed, the drain including a main body having a cavity formed therein, an interior element, and a hydrophilic porous media. The passive water drain is adapted to simplify the anode reactant recycler, eliminate the need for bypass valve systems used to remove water from the cathode exhaust, and eliminate the need for condensate draining systems used for compressed air entering the cathode.

    摘要翻译: 公开了一种用于从燃料电池系统去除水的被动排水口,排水口包括其中形成有空腔的主体,内部元件和亲水性多孔介质。 被动排水装置适用于简化阳极反应物再循环器,不需要用于从阴极排气口移除水的旁路阀系统,并且不需要用于进入阴极的压缩空气的冷凝水排放系统。