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1.发明授权公开(公告)号：US08945785B2
公开(公告)日：2015-02-03
申请号：US13345288
申请日：2012-01-06
申请人： Daniel I. Harris , Derek R. Lebzelter , John P. Salvador , William H. Pettit , Akbar Chowdhury , Edward G. Himes
发明人： Daniel I. Harris , Derek R. Lebzelter , John P. Salvador , William H. Pettit , Akbar Chowdhury , Edward G. Himes
IPC分类号： H01M8/04
CPC分类号： H01M8/04955 , H01M8/04559
摘要： A system and method for reducing the frequency of stack stand-by mode events, if necessary, as a fuel cell stack ages and experiences lower performance. The method determines an irreversible voltage loss of the fuel cell stack at predetermined time intervals and determines a stack voltage degradation variable based on the irreversible voltage loss. The method also determines if the stack voltage degradation variable indicates that the fuel cell stack will not meet predetermined stack end-of-life voltage requirements and calculates a maximum allowed voltage degradation rate of the fuel cell stack. The method calculates a maximum number of stand-by mode events per unit time that can be allowed to prevent the stack from exceeding the maximum allowed degradation rate and controls the number of stand-by mode events based on the calculated maximum number of stand-by mode events.
摘要翻译： 如果需要，当燃料电池堆老化并且经历较低的性能时，用于降低堆叠待机模式事件的频率的系统和方法。 该方法以预定的时间间隔确定燃料电池堆的不可逆电压损失，并且基于不可逆的电压损耗确定堆电压劣化变量。 该方法还确定堆叠电压劣化变量是否表明燃料电池堆不能满足预定的堆积寿命电压要求并且计算燃料电池堆的最大允许电压降低率。 该方法计算出每单位时间的待机模式事件的最大次数，可以被允许以防止堆栈超过允许的最大降级率，并根据计算的最大待机数量控制待机模式事件的数量 模式事件。
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公开(公告)号：US07597975B2
公开(公告)日：2009-10-06
申请号：US11434385
申请日：2006-05-15
CPC分类号： H01M8/04522 , H01M8/04126 , H01M8/0432 , H01M8/04843 , H01M2008/1095
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。
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公开(公告)号：US08158288B2
公开(公告)日：2012-04-17
申请号：US13092223
申请日：2011-04-22
CPC分类号： H01M8/04119 , H01M8/04253 , H01M2008/1095
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。
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4.发明申请COMPLIANT FEED REGION IN STAMPED METAL FLOWFIELD OF A FUEL CELL PLATE TO ELIMINATE BIAS 有权燃料电池板冲压金属流动中的合格进料区域以消除偏差公开(公告)号：US20100015505A1
公开(公告)日：2010-01-21
申请号：US12175511
申请日：2008-07-18
IPC分类号： H01M2/14
CPC分类号： H01M8/026 , H01M8/0258 , H01M8/0267 , H01M8/241 , H01M8/248 , H01M2008/1095
摘要： A fuel cell plate assembly is disclosed that comprises a first plate having a plurality of protuberances formed in a bottom of flow channels formed thereon, wherein the protuberances abut a bottom of flow channels formed on a second plate when the first plate and the second plate are disposed adjacent one another.
摘要翻译： 公开了一种燃料电池板组件，其包括具有形成在其上形成的流动通道的底部中的多个突起的第一板，其中当第一板和第二板是第二板时，突起邻接形成在第二板上的流动通道的底部 彼此相邻放置。
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公开(公告)号：US07638213B2
公开(公告)日：2009-12-29
申请号：US11117791
申请日：2005-04-29
申请人： Kevin Stukey , William H. Pettit
发明人： Kevin Stukey , William H. Pettit
IPC分类号： H01M8/04
CPC分类号： H01M8/04074 , H01M8/04029 , H01M8/04119
摘要： A vaporizer is provided for vaporizing liquid in a fluid stream. The vaporizer includes at least two heat exchangers serially arranged in a direction of flow of the fluid stream through the vaporizer for vaporizing liquid in the fluid stream in stages. The heat exchangers each comprise a first plurality of thermally conductive flow channels through which the fluid stream flows and a second plurality of thermally conductive flow channels through which a heating stream flows and which are in heat exchange relationship with the first plurality of thermally conductive flow channels. A liquid supply means is provided for adding liquid to a downstream heat exchanger. The added liquid mixes with the vaporized stream exiting an upstream heat exchanger for vaporization in the downstream heat exchanger.
摘要翻译： 提供蒸发器用于使流体流中的液体蒸发。 蒸发器包括至少两个热交换器，其沿流动流的流动方向串联地布置，通过蒸发器，用于分级地使流体流中的液体蒸发。 热交换器各自包括流体流通过的第一多个导热流动通道和第二多个热传导流动通道，加热流通过该第二多个热传导流动通道并与第一多个导热流动通道热交换 。 提供液体供应装置用于将液体添加到下游热交换器。 所添加的液体与离开上游热交换器的汽化物流混合，以在下游热交换器中蒸发。
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公开(公告)号：US07524344B2
公开(公告)日：2009-04-28
申请号：US11243084
申请日：2005-10-04
IPC分类号： C10J3/46
CPC分类号： B01D53/06 , B01D53/047 , B01D53/261 , B01D2253/102 , B01D2253/104 , B01D2253/106 , B01D2253/108 , B01D2253/1124 , B01D2253/25 , B01D2256/16 , B01D2257/502 , B01D2257/80 , B01D2258/0208 , B01D2259/40001 , B01D2259/40052 , B01D2259/40056 , B01D2259/40081 , B01D2259/4145 , C01B3/48 , C01B3/56 , C01B2203/0283 , C01B2203/043 , C01B2203/0465 , C01B2203/047 , C01B2203/0475 , C01B2203/0495 , C01B2203/066 , C01B2203/146 , H01M8/0662
摘要： An apparatus removes carbon monoxide (CO) from a hydrogen-rich gas stream in a hydrogen fuel cell system. CO fouls costly catalytic particles in the membrane electrode assemblies of proton exchange membrane (PEM) fuel cells. A vessel houses a carbon monoxide adsorbent. The vessel may be a rotating pressure swing adsorber. A water gas shift reactor is upstream of the rotating pressure swing adsorber. The water gas shift reactor may include a second adsorbent adapted to adsorb carbon monoxide at low temperatures and to desorb carbon monoxide at high temperatures. The apparatus advantageously eliminates the use of a preferential oxidation (PROX) reactor, by providing an apparatus which incorporates CO adsorption in the place of the PROX reactor. This cleans up carbon monoxide without hydrogen consumption and the concomitant, undesirable excess low grade heat generation. The present invention reduces start-up duration, and improves overall fuel processor efficiency during normal operation.
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公开(公告)号：US20070298289A1
公开(公告)日：2007-12-27
申请号：US11475695
申请日：2006-06-27
申请人： Bruce J. Clingerman , Jason R. Kolodziej , Derek S. Kilmer , Pinkhas A. Rapaport , David S. Mathews , Shyam Kocha , Abdullah B. Alp , Matthew K. Hortop , William H. Pettit
发明人： Bruce J. Clingerman , Jason R. Kolodziej , Derek S. Kilmer , Pinkhas A. Rapaport , David S. Mathews , Shyam Kocha , Abdullah B. Alp , Matthew K. Hortop , William H. Pettit
IPC分类号： H01M8/04
CPC分类号： H01M8/04955 , B60L11/1894 , B60L2240/622 , B60L2240/662 , B60L2240/80 , H01M8/0258 , H01M8/04223 , H01M8/04228 , H01M8/04231 , H01M8/04253 , H01M8/0432 , H01M8/04358 , H01M8/04365 , H01M8/04731 , H01M8/241 , Y02T10/7291 , Y02T90/16 , Y02T90/162 , Y02T90/34
摘要： A fuel cell system that employs a method for determining the potential that a freeze condition will exist after the system is shut-down based on predetermined input, such as ambient temperature, geographical location, user usage profile, date, weather reports, etc. If the system determines that a freeze condition is probable, then the system initiates a purge shut-down of the fuel cell system where water is purged out of the reactant gas flow channels. If the system determines that a freeze condition is unlikely, then it will initiate a normal shut-down procedure without purging the flow channels. The system will then periodically determine if the conditions have changed, and will initiate the purge if a freeze condition subsequently becomes probable.
摘要翻译： 一种燃料电池系统，其采用基于诸如环境温度，地理位置，用户使用情况，日期，天气报告等预定输入关闭系统之后将存在冻结状态的潜力的方法。如果 系统确定冷冻条件是可能的，则系统启动燃料电池系统的清除关闭，其中将水从反应物气体流动通道中排出。 如果系统确定冻结条件不太可能，那么它将启动一个正常的停机程序，而不需要清除流量通道。 然后，系统将定期确定条件是否已更改，并且如果冻结条件随后变为可能，将启动清除。
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公开(公告)号：US06669463B2
公开(公告)日：2003-12-30
申请号：US10044338
申请日：2002-01-11
IPC分类号： F23D340
CPC分类号： F23C13/00 , C01B3/323 , C01B2203/0233 , C01B2203/0283 , C01B2203/044 , C01B2203/066 , C01B2203/0811 , C01B2203/0822 , C01B2203/0827 , C01B2203/1223 , C01B2203/1288 , F23L15/00 , H01M8/04223 , H01M8/04302 , H01M8/0612 , H01M8/0662 , Y02E20/348 , Y02P20/128
摘要： The present invention provides a combustor for a fuel processor which integrates a burner and a catalyst. The burner is utilized to quickly heat the catalyst to a light-off temperature to prepare it for normal operation. The heated catalyst is then used to react anode exhaust with air or cathode exhaust under normal operation.
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公开(公告)号：US08574776B2
公开(公告)日：2013-11-05
申请号：US11475695
申请日：2006-06-27
申请人： Bruce J. Clingerman , Jason R. Kolodziej , Derek S. Kilmer , Pinkhas A. Rapaport , David S. Mathews , Shyam Kocha , Abdullah B. Alp , Matthew K. Hortop , William H. Pettit
发明人： Bruce J. Clingerman , Jason R. Kolodziej , Derek S. Kilmer , Pinkhas A. Rapaport , David S. Mathews , Shyam Kocha , Abdullah B. Alp , Matthew K. Hortop , William H. Pettit
IPC分类号： H01M8/10
CPC分类号： H01M8/04955 , B60L11/1894 , B60L2240/622 , B60L2240/662 , B60L2240/80 , H01M8/0258 , H01M8/04223 , H01M8/04228 , H01M8/04231 , H01M8/04253 , H01M8/0432 , H01M8/04358 , H01M8/04365 , H01M8/04731 , H01M8/241 , Y02T10/7291 , Y02T90/16 , Y02T90/162 , Y02T90/34
摘要： A fuel cell system that employs a method for determining the potential that a freeze condition will exist after the system is shut-down based on predetermined input, such as ambient temperature, geographical location, user usage profile, date, weather reports, etc. If the system determines that a freeze condition is probable, then the system initiates a purge shut-down of the fuel cell system where water is purged out of the reactant gas flow channels. If the system determines that a freeze condition is unlikely, then it will initiate a normal shut-down procedure without purging the flow channels. The system will then periodically determine if the conditions have changed, and will initiate the purge if a freeze condition subsequently becomes probable.
摘要翻译： 一种燃料电池系统，其采用基于诸如环境温度，地理位置，用户使用情况，日期，天气报告等预定输入关闭系统之后将存在冻结状态的潜力的方法。如果 系统确定冷冻条件是可能的，则系统启动燃料电池系统的清除关闭，其中将水从反应物气体流动通道中排出。 如果系统确定冻结条件不太可能，那么它将启动一个正常的停机程序，而不需要清除流量通道。 然后，系统将定期确定条件是否已更改，并且如果冻结条件随后变为可能，将启动清除。
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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
CPC分类号： H01M8/04119 , H01M8/04253 , H01M2008/1095
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。
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