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1. 发明申请

US20120052408A1 MEMBRANE PERMEATION ADJUSTMENT IN PEM FUEL CELL 有权
标题翻译： 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。

2. 发明授权

US08507141B2 Membrane permeation adjustment in PEM fuel cell 有权
标题翻译： PEM燃料电池膜渗透调节
公开(公告)号：US08507141B2
公开(公告)日：2013-08-13
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
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。

3. 发明授权

US08158288B2 Relative humidity control for a fuel cell 有权
标题翻译：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
申请人： Steven G. Goebel , William H. Pettit , John C. Fagley , Lee C. Whitehead
发明人： Steven G. Goebel , William H. Pettit , John C. Fagley , Lee C. Whitehead
IPC分类号： H01M8/06 , 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。

4. 发明申请

US20110207010A1 Relative Humidity Control For A Fuel Cell 有权
标题翻译：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
申请人： Steven G. Goebel , William H. Pettit , John C. Fagley , Lee C. Whitehead
发明人： Steven G. Goebel , William H. Pettit , John C. Fagley , Lee C. Whitehead
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。

5. 发明授权

US07597975B2 Fuel cell operation to minimize RH cycles to improve durability 有权
标题翻译：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
申请人： William H. Pettit , John C. Fagley , John P. Salvador , Steven G. Goebel
发明人： William H. Pettit , John C. Fagley , John P. Salvador , Steven G. Goebel
IPC分类号： H01M8/00 , H01M8/04 , G05D22/00
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。

6. 发明授权

US07976991B2 Relative humidity control for a fuel cell 有权
标题翻译：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
申请人： Steven G. Goebel , William H. Pettit , John C. Fagley , Lee C. Whitehead
发明人： Steven G. Goebel , William H. Pettit , John C. Fagley , Lee C. Whitehead
IPC分类号： H01M8/04 , H01M8/00
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。

7. 发明授权

US08945785B2 Adaptive limitation of standby mode to enhance fuel cell system life 有权
标题翻译：备用模式的自适应限制，以提高燃料电池系统的使用寿命
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。

8. 发明申请

US20100015505A1 COMPLIANT FEED REGION IN STAMPED METAL FLOWFIELD OF A FUEL CELL PLATE TO ELIMINATE BIAS 有权
标题翻译：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
申请人： Daniel P. Miller , Jeffrey A. Rock , William H. Pettit
发明人： Daniel P. Miller , Jeffrey A. Rock , William H. Pettit
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。

9. 发明授权

US07638213B2 Multi-stage rapid vaporization apparatus and method 有权
标题翻译：多级快速蒸发装置及方法
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。

10. 发明授权

US07524344B2 Carbon monoxide adsorption for carbon monoxide clean-up in a fuel cell system 有权
公开(公告)号：US07524344B2
公开(公告)日：2009-04-28
申请号：US11243084
申请日：2005-10-04
申请人： Craig S. Gittleman , William H. Pettit , Gerald E. Voecks
发明人： Craig S. Gittleman , William H. Pettit , Gerald E. Voecks
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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