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54 条记录 (耗时 0.03 秒)

    Argon condensation system and method
    11.
    发明授权
    Argon condensation system and method 有权

    公开(公告)号：US10190819B2

    公开(公告)日：2019-01-29

    申请号：US16032243

    申请日：2018-07-11

    申请人： Steven R. Falta ,  Brian S. Powell ,  Henry E. Howard ,  Vijayaraghavan S. Chakravarthy ,  Maulik R. Shelat

    发明人： Steven R. Falta ,  Brian S. Powell ,  Henry E. Howard ,  Vijayaraghavan S. Chakravarthy ,  Maulik R. Shelat

    IPC分类号： F25J3/04 ,  F25J3/02

    摘要： An argon reflux condensation system and method in which a plurality of once-through heat exchangers are connected to an argon column of an air separation plant to condense argon-rich vapor streams for production of reflux to the argon column. Condensation of the argon-rich vapor streams is brought about through indirect heat exchange with crude liquid oxygen streams that partially vaporize and are introduced into a lower pressure column of the plant for further refinement. The flow rate of the crude liquid oxygen streams are sensed and controlled at locations in the plant where the crude liquid oxygen is in a liquid state and in proportion to the size of the once-through heat exchangers. Feed stream flow rate to the argon column is controlled in response to air flow rate to the plant and product flow rate is controlled in response to the feed stream flow rate to the argon column.

    Diagnosing injector failure via stack voltage response analysis
    14.
    发明授权
    Diagnosing injector failure via stack voltage response analysis 有权
    通过堆叠电压响应分析诊断注射器故障

    公开(公告)号：US09018961B2

    公开(公告)日：2015-04-28

    申请号：US13564333

    申请日：2012-08-01

    申请人： Manish Sinha ,  Daniel C. Di Fiore ,  John C. Fagley ,  Steven R. Falta

    发明人： Manish Sinha ,  Daniel C. Di Fiore ,  John C. Fagley ,  Steven R. Falta

    IPC分类号： G01R31/08 ,  G01M3/04 ,  G01R31/36 ,  H01M8/04

    CPC分类号： H01M8/04686 ,  G01R31/362 ,  H01M8/04402 ,  H01M8/04559 ,  H01M8/04753 ,  Y02E60/50

    摘要： A system and method for determining whether an anode injector that injects hydrogen gas into an anode side of a fuel cell stack has failed. The method includes monitoring a voltage of the fuel cell stack and performing spectral analysis of the stack voltage to identify amplitude peaks in the stack voltage. The method further includes determining whether the spectral analysis of the stack voltage has identified an amplitude peak at a location where an amplitude peak should occur if the injector is operating properly. If no amplitude peak is identified at that location, then the method determines that the injector is not operating properly. If an amplitude peak is identified at that location, then the method compares the amplitude peak to the desired amplitude peak to identify if it is within a threshold to determine if the injector is operating properly.

    摘要翻译： 用于确定将氢气注入燃料电池堆的阳极侧的阳极喷射器是否失效的系统和方法。 该方法包括监测燃料电池堆的电压并执行堆叠电压的光谱分析以识别堆叠电压中的幅度峰值。 该方法还包括确定堆叠电压的光谱分析是否已经在如果喷射器正常工作的情况下在振幅峰值应该发生的位置处确定了振幅峰值。 如果在该位置没有识别到​​振幅峰值，则该方法确定喷射器不能正常工作。 如果在该位置识别振幅峰值，则该方法将振幅峰值与期望振幅峰值进行比较，以识别其是否在阈值内以确定喷射器是否正常工作。

    Anode water separator for a fuel cell system
    15.
    发明授权
    Anode water separator for a fuel cell system 有权
    用于燃料电池系统的阳极水分离器

    公开(公告)号：US08563182B2

    公开(公告)日：2013-10-22

    申请号：US13544589

    申请日：2012-07-09

    申请人： Steven G. Goebel ,  Steven R. Falta ,  Jon P. Owejan

    发明人： Steven G. Goebel ,  Steven R. Falta ,  Jon P. Owejan

    IPC分类号： H01M8/06

    CPC分类号： H01M8/04097 ,  H01M8/04119 ,  H01M8/04141 ,  H01M8/04164 ,  H01M8/2485 ,  H01M2008/1095

    摘要： An anode reactant recycling system for a fuel cell is disclosed, the system including a hollow main body, a bleed conduit, an injector, a water separator, and a hydrophilic porous media. The anode reactant recycling system for a fuel cell is configured to minimize a required number of components, eliminate the need for the anode heat exchanger, use a single valve for removal of condensate and reactant byproducts from the anode reactant recycling system, and provide an upstream volume for startup pressurization.

    摘要翻译： 公开了一种用于燃料电池的阳极反应物再循环系统，该系统包括中空主体，排​​放导管，注射器，水分离器和亲水性多孔介质。 用于燃料电池的阳极反应物再循环系统被配置为最小化所需数量的部件，消除对阳极热交换器的需要，使用单个阀来从阳极反应物再循环系统去除冷凝物和反应物副产物，并提供上游 启动加压量。

    MEMBRANE PERMEATION ADJUSTMENT IN PEM FUEL CELL
    17.
    发明申请
    MEMBRANE PERMEATION ADJUSTMENT IN PEM FUEL CELL 有权
    PEM燃料电池膜渗透调整

    公开(公告)号：US20120052408A1

    公开(公告)日：2012-03-01

    申请号：US12868487

    申请日：2010-08-25

    申请人： Matthew A. Lang ,  Daniel C. Di Fiore ,  William H. Pettit ,  Steven R. Falta ,  John C. Fagley

    发明人： Matthew A. Lang ,  Daniel C. Di Fiore ,  William H. Pettit ,  Steven R. Falta ,  John C. Fagley

    IPC分类号： H01M8/04 ,  G06G7/58

    CPC分类号： H01M8/04992 ,  H01M8/04097 ,  H01M8/04111 ,  H01M8/04231 ,  H01M8/04402 ,  H01M8/04462 ,  H01M8/04746 ,  H01M8/04791

    摘要： A system and method for correcting an estimation of nitrogen in an anode side of a fuel cell stack. The system includes a fuel cell stack and a pressure sensor for measuring pressure in an anode sub-system. The system also includes a controller configured to control the estimation of nitrogen permeation from the cathode side to the anode side of the stack, where the controller determines if the pressure in the anode sub-system equilibrates with atmospheric pressure in a shorter period of time after shutdown compared to the time necessary for the anode sub-system to reach approximately atmospheric pressure after a previous shutdown or calibrated time value, and corrects the estimation of nitrogen in the anode side of the stack if the pressure equilibrates in a shorter period of time.

    摘要翻译： 一种用于校正燃料电池堆的阳极侧的氮的估计的系统和方法。 该系统包括用于测量阳极子系统中的压力的​​燃料电池堆和压力传感器。 该系统还包括控制器，其被配置为控制从堆的阴极侧到阳极侧的氮气渗透的估计，其中控制器确定阳极子系统中的压力是否在大气压力之后在更短的时间段内平衡 与阳极子系统在先前停机或校准时间值之后达到大致压力所需的时间相比，如果压力在更短的时间内平衡，则校正堆叠阳极侧的氮气的估计。

    TWO STAGE, HFR-FREE FREEZE PREPARATION SHUTDOWN STRATEGY
    19.
    发明申请
    TWO STAGE, HFR-FREE FREEZE PREPARATION SHUTDOWN STRATEGY 审中-公开
    两阶段，HFR免费冻结准备关闭策略

    公开(公告)号：US20100190076A1

    公开(公告)日：2010-07-29

    申请号：US12358989

    申请日：2009-01-23

    申请人： JOHN C. FAGLEY ,  Steven R. Falta

    发明人： JOHN C. FAGLEY ,  Steven R. Falta

    IPC分类号： H01M8/04

    CPC分类号： H01M8/04507 ,  H01M8/04231 ,  H01M8/04828

    摘要： A system and method for providing a fuel cell stack purge at fuel cell system shut-down. The method provides a two-stage purge process where the first stage purge uses humidified cathode air to get the fuel cell stack to a known stack hydration level from an unknown stack hydration level at system shut-down. As the stack is purged with the humidified air, the hydration level of the stack decreases asymptotically to the known stack hydration level where the duration of the first stage is set based on the asymptote as a safety margin. Once the known hydration level is achieved, then the second stage purge is performed with dry air to further reduce the stack hydration to a final desired hydration level.

    摘要翻译： 一种用于在燃料电池系统关闭时提供燃料电池堆清洗的系统和方法。 该方法提供两级清洗过程，其中第一级清洗使用加湿的阴极空气将燃料电池堆从系统停机时的未知堆积水合水平获得到已知的堆积水合水平。 当堆叠被加湿的空气吹扫时，堆叠的水合水平渐近地减小到已知堆积水化水平，其中基于渐近线设置第一阶段的持续时间作为安全裕度。 一旦实现了已知的水合水平，则用干燥空气进行第二阶段吹扫，以进一步将堆积水化降低到最终期望的水化水平。

    Water Removal Features for PEMFC Stack Manifolds
    20.
    发明申请
    Water Removal Features for PEMFC Stack Manifolds 有权
    PEMFC堆叠歧管的除水特性

    公开(公告)号：US20090117432A1

    公开(公告)日：2009-05-07

    申请号：US11936633

    申请日：2007-11-07

    申请人： Lee C. Whitehead ,  Steven R. Falta ,  Thomas A. Trabold ,  Jon P. Owejan ,  Thomas W. Tighe

    发明人： Lee C. Whitehead ,  Steven R. Falta ,  Thomas A. Trabold ,  Jon P. Owejan ,  Thomas W. Tighe

    IPC分类号： H01M8/04 ,  H01M8/10

    CPC分类号： H01M8/04179 ,  H01M8/0254 ,  H01M8/0258 ,  H01M8/0263 ,  H01M8/241

    摘要： A bipolar plate includes angled facets oriented to form V-shaped projections on the plate edge. Liquid leaving the reactant channels is drawn back into the V-shaped grooves of the projections, leaving no liquid to obstruct the channel exit openings. The bipolar plate includes one portion of the bipolar plate offset from another portion of the bipolar plate so as to expose the reactant channels. The liquid is drawn toward the end portions of the reactant channels by capillary forces, while the gas flows can exit near the beginning of the offset portion. A fuel cell stack includes angled facets that are rotated to lie in the plane of the bipolar plate edges. The edges are chamfered so the channel exit openings of the reactant channels are at the tip portions thereof, thus allowing the liquid to flow away from the channel exit openings and the gas to exit freely.

    摘要翻译： 双极板包括定向成在板边缘上形成V形突起的倾斜小平面。 离开反应物通道的液体被拉回到突起的V形槽中，没有液体阻碍通道出口。 双极板包括从双极板的另一部分偏移的双极板的一部分，以暴露反应物通道。 液体通过毛细管力被吸引到反应物通道的端部，而气体流可以在偏移部分的开始附近离开。 燃料电池堆包括旋转以位于双极板边缘的平面中的倾斜小平面。 边缘被倒角，使得反应物通道的通道出口开口处于其顶端部分，从而允许液体从通道出口开口和气体离开自由地流出。