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公开(公告)号：US09509002B2
公开(公告)日：2016-11-29
申请号：US13261523
申请日：2010-05-20
CPC分类号： H01M8/04298 , B60L11/1885 , H01M8/04201 , H01M8/04223 , H01M8/04225 , H01M8/04228 , H01M2250/20 , Y02E60/50 , Y02T90/32 , Y02T90/34
摘要： A fuel cell power plant keeps track, such as with a fuel-off timer (41), of the extent to which shutdown of the fuel cell power plant has occurred, in case the fuel cell power plant is quickly commanded to resume full operation. In one embodiment, if the fuel-off timer has not timed out at the time that the fuel cell power plant is ordered to resume full operation, a fuel-on timer is set (51) equal to the value of the fuel-off timer when the fuel cell power plant is ordered to resume full operation. Then, the fuel cell power plant is refueled (22), in a duration of time related to the setting of the fuel-off timer, rather than doing a full fuel purge.
摘要翻译： 在燃料电池发电厂被快速命令恢复完全运行的情况下，燃料电池发电厂跟踪燃料电池发电厂关闭的程度，例如燃料灭火定时器（41）。 在一个实施例中，如果在燃料电池发电厂被命令恢复全部运行时燃料关闭定时器没有超时，则将燃料启动定时器设置为等于燃料消耗定时器的值 当燃料电池发电厂被命令恢复全面运行时。 然后，燃料电池发电厂在与燃油定时器的设定有关的时间内加油（22），而不是进行全燃料净化。
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公开(公告)号：US20130197729A1
公开(公告)日：2013-08-01
申请号：US13261615
申请日：2010-09-15
IPC分类号： B60L11/18
CPC分类号： B60L11/1883 , B60L3/0053 , B60L11/1881 , B60L11/1887 , B60L11/1888 , B60L2240/12 , B60L2240/80 , B60L2260/22 , H01M8/04223 , H01M8/04225 , H01M8/04228 , H01M8/04303 , H01M8/04619 , H01M8/04753 , H01M8/0488 , H01M8/04955 , H01M10/44 , H01M10/46 , H01M16/006 , H01M2220/20 , H01M2250/20 , Y02E60/50 , Y02T10/92 , Y02T90/32 , Y02T90/34
摘要： The performance of a fuel cell power plant that decays, in an electric vehicle which makes frequent starts, is recovered by partially shutting down (65-67) the power plant. Recovery is enabled by a recovery enable flag (25) upon conditions such as vehicle using (22) low or no power (16), vehicle speed at or near zero (22), electric storage SOC above a threshold (23), and no recovery (19) during the last half-hour (or other duration). The recovery restart resets a timer (79) to ensure (19) that recovery is not attempted too often. The power plant then remains in a recovery stand-by mode (72) until a recovery restart flag (35) is set to 1 (74). The restart causes start-up of the fuel cell power plant (50, 52, 55), reaching an operational mode (57).
摘要翻译： 通过部分关闭（65-67）发电厂，恢复在频繁启动的电动车辆中衰减的燃料电池发电厂的性能。 在诸如车辆使用（22）低或无功率（16），车速等于或接近零（22），高于阈值（23）的电存储器SOC的条件下，恢复使能标志（25） 在最后半小时（或其他持续时间）内恢复（19）。 恢复重启将重置定时器（79）以确保（19）不会太频繁地尝试恢复。 然后发电厂保持恢复待机模式（72），直到恢复重启标志（35）设置为1（74）。 重新启动使得燃料电池发电厂（50,52,55）的启动达到操作模式（57）。
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公开(公告)号：US20090220832A1
公开(公告)日：2009-09-03
申请号：US12387515
申请日：2009-05-04
IPC分类号： H01M8/04
CPC分类号： H01M8/04455 , H01M8/04097 , H01M8/04201 , H01M8/04223 , H01M8/04228 , H01M8/04231 , H01M8/04447 , H01M8/04552 , H01M8/04753 , H01M8/04798 , H01M2008/1095
摘要： The invention is a hydrogen passivation shut down system for a fuel cell power plant (10, 200). During shut down of the plant (10, 200), hydrogen fuel is permitted to transfer between an anode flow path (24, 24′) and a cathode flow path (38, 38′). A controlled-oxidant flow device (209) near an oxygen source (58′) permits a minimal amount of atmospheric oxygen to enter the power plant (200) during shut down to equalize pressure between ambient atmosphere and the flow paths (24′, 28′) and to keep limited atmospheric oxygen entering the power plant (200) through the device (209) as far as possible from fuel cell flow fields (28′, 42′). A non-leaking hydrogen inlet valve (202), a non-leaking cathode exhaust valve (208), and a combined oxidant and fuel exhaust line (206) also minimize penetration of oxygen into the shut down power plant (200).
摘要翻译： 本发明是用于燃料电池发电厂（10,200）的氢钝化关闭系统。 在工厂（10,200）关闭期间，允许氢燃料在阳极流动路径（24,24'）和阴极流动路径（38,38'）之间传递。 在氧源（58'）附近的受控氧化剂流动装置（209）允许最少量的大气氧在关闭期间进入发电厂（200），以使环境大气和流动路径（24'，28）之间的压力相等 '）并且尽可能远离燃料电池流场（28'，42'），通过装置（209）将有限的大气氧气进入发电厂（200）。 不泄漏的氢气入口阀（202），不泄漏的阴极排气阀（208）和组合的氧化剂和燃料排放管线（206）还使氧气进入关闭发电厂（200）的渗透最小化。
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公开(公告)号：US08808934B2
公开(公告)日：2014-08-19
申请号：US12998152
申请日：2008-10-03
IPC分类号： H01M8/04
CPC分类号： H01M8/04626 , H01M8/04552 , H01M8/04753 , H01M8/04761 , H01M8/04873 , H01M8/04947 , H01M2250/20 , Y02E60/50 , Y02T10/92 , Y02T90/32
摘要： A fuel cell power plant (5) includes a stack (6) of fuel cells, each of which have an anode (9), a cathode (10), and a PEM (11) disposed between the anode and the cathode. A controller (17) recognizes an indication (67) of no load demand (68) by a load (59), to operate (45) an air recycle loop (44-46) utilizing the process air blower (35) and transfer the power output (57) of the stack from the load (59) to an auxiliary load (60), comprising a resistance which will consume a predetermined small amount of power in response to the current applied thereto, when the stack operates at a critical voltage above which fuel cell corrosion is unacceptable. Fuel and air will also be reduced (16, 40). The controller may cause increased cathode recycle when the critical voltage is reached and increased air when the voltage is a fraction of a volt below the critical voltage.
摘要翻译： 燃料电池发电厂（5）包括燃料电池堆（6），每个燃料电池单元具有设置在阳极和阴极之间的阳极（9），阴极（10）和PEM（11）。 控制器（17）通过负载（59）识别无负载要求指示（67），以利用处理空气鼓风机（35）操作（45）空气循环回路（44-46），并转移 堆叠从负载（59）到辅助负载（60）的功率输出（57），包括响应于施加到其上的电流将消耗预定的小量功率的电阻，当堆栈以临界电压 以上燃料电池腐蚀是不可接受的。 燃料和空气也将减少（16，40）。 当达到临界电压时，控制器可能导致增加的阴极再循环，当电压是低于临界电压的伏特的一小部分时，空气增加。
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公开(公告)号：US20100310955A1
公开(公告)日：2010-12-09
申请号：US12734764
申请日：2007-12-28
申请人： Venkateshwarlu Yadha , Marc Moran , Matthew Wilson
发明人： Venkateshwarlu Yadha , Marc Moran , Matthew Wilson
IPC分类号： H01M8/04
CPC分类号： H01M8/04231 , C01B2203/0205 , C01B2203/066 , C01B2203/1241 , H01M2008/1095
摘要： A fuel cell power plant (100) includes a stack of fuel cells (102), each having an electrolyte (101) between an anode (104), and a cathode (106), coolant channels (103), an air blower (144), air inlet and outlet valves (139a, 141a), a cathode recycle loop an (135) using the air blower, and a cathode exhaust mix box (173). Shutdown includes recycling cathode air while applying fresh fuel and recycled fuel through the anodes until oxygen is about is about 0.2 or less, or expiration of time. On startup, the air blower is started with the cathode recycle valve (135) open, and the air inlet valve is opened to allow about one-half of the flow of air used during normal operation, to cause hydrogen in the cathode to be gradually consumed, thereby avoiding H2 levels above lower flammability levels in the air outlet manifold. H2 is monitored at exhaust; full air flow is provided after H2 peaks.
摘要翻译： 燃料电池发电厂（100）包括一堆燃料电池（102），每个燃料电池在阳极（104）和阴极（106）之间具有电解质（101），冷却剂通道（103），鼓风机（144） ），进气和出气阀（139a，141a），使用鼓风机的阴极循环回路（135）和阴极排气混合箱（173）。 关闭包括回收阴极空气，同时通过阳极施加新鲜燃料和再循环燃料，直到氧气约为0.2或更短，或时间到期。 启动时，开启阴极再循环阀（135）的鼓风机，进气阀打开，允许正常运行中使用的大约一半的空气，使阴极中的氢逐渐变为 从而避免在空气出口歧管中高于低于可燃性水平的H 2水平。 在尾气处监测H2; H2峰后提供全气流。
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公开(公告)号：US08142950B2
公开(公告)日：2012-03-27
申请号：US12387515
申请日：2009-05-04
CPC分类号： H01M8/04455 , H01M8/04097 , H01M8/04201 , H01M8/04223 , H01M8/04228 , H01M8/04231 , H01M8/04447 , H01M8/04552 , H01M8/04753 , H01M8/04798 , H01M2008/1095
摘要： The invention is a hydrogen passivation shut down system for a fuel cell power plant (10, 200). During shut down of the plant (10, 200), hydrogen fuel is permitted to transfer between an anode flow path (24, 24′) and a cathode flow path (38, 38′). A controlled-oxidant flow device (209) near an oxygen source (58′) permits a minimal amount of atmospheric oxygen to enter the power plant (200) during shut down to equalize pressure between ambient atmosphere and the flow paths (24′, 28′) and to keep limited atmospheric oxygen entering the power plant (200) through the device (209) as far as possible from fuel cell flow fields (28′, 42′). A non-leaking hydrogen inlet valve (202), a non-leaking cathode exhaust valve (208), and a combined oxidant and fuel exhaust line (206) also minimize penetration of oxygen into the shut down power plant (200).
摘要翻译： 本发明是用于燃料电池发电厂（10,200）的氢钝化关闭系统。 在工厂（10,200）关闭期间，允许氢燃料在阳极流动路径（24,24'）和阴极流动路径（38,38'）之间传递。 在氧源（58'）附近的受控氧化剂流动装置（209）允许最少量的大气氧在关闭期间进入发电厂（200），以使环境大气和流动路径（24'，28）之间的压力相等 '）并且尽可能远离燃料电池流场（28'，42'），通过装置（209）将有限的大气氧气进入发电厂（200）。 不泄漏的氢气入口阀（202），不泄漏的阴极排气阀（208）和组合的氧化剂和燃料排放管线（206）还使氧气进入关闭发电厂（200）的渗透最小化。
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公开(公告)号：US20110171547A1
公开(公告)日：2011-07-14
申请号：US12998152
申请日：2008-10-03
IPC分类号： H01M8/04
CPC分类号： H01M8/04626 , H01M8/04552 , H01M8/04753 , H01M8/04761 , H01M8/04873 , H01M8/04947 , H01M2250/20 , Y02E60/50 , Y02T10/92 , Y02T90/32
摘要： A fuel cell power plant (5) includes a stack (6) of fuel cells, each of which have an anode (9), a cathode (10), and a PEM (11) disposed between the anode and the cathode. A controller (17) recognizes an indication (67) of no load demand (68) by a load (59), to operate (45) an air recycle loop (44-46) utilizing the process air blower (35) and transfer the power output (57) of the stack from the load (59) to an auxiliary load (60), comprising a resistance which will consume a predetermined small amount of power in response to the current applied thereto, when the stack operates at a critical voltage above which fuel cell corrosion is unacceptable. Fuel and air will also be reduced (16, 40). The controller may cause increased cathode recycle when the critical voltage is reached and increased air when the voltage is a fraction of a volt below the critical voltage.
摘要翻译： 燃料电池发电厂（5）包括燃料电池堆（6），每个燃料电池单元具有设置在阳极和阴极之间的阳极（9），阴极（10）和PEM（11）。 控制器（17）通过负载（59）识别空载需求指示（67），利用处理空气鼓风机（35）操作（45）空气循环回路（44-46），并将 堆叠从负载（59）到辅助负载（60）的功率输出（57），包括响应于施加到其上的电流将消耗预定的小量功率的电阻，当堆栈以临界电压 以上燃料电池腐蚀是不可接受的。 燃料和空气也将减少（16，40）。 当达到临界电压时，控制器可能导致增加的阴极再循环，当电压是低于临界电压的伏特的一小部分时，空气增加。
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公开(公告)号：US09403444B2
公开(公告)日：2016-08-02
申请号：US13261615
申请日：2010-09-15
CPC分类号： B60L11/1883 , B60L3/0053 , B60L11/1881 , B60L11/1887 , B60L11/1888 , B60L2240/12 , B60L2240/80 , B60L2260/22 , H01M8/04223 , H01M8/04225 , H01M8/04228 , H01M8/04303 , H01M8/04619 , H01M8/04753 , H01M8/0488 , H01M8/04955 , H01M10/44 , H01M10/46 , H01M16/006 , H01M2220/20 , H01M2250/20 , Y02E60/50 , Y02T10/92 , Y02T90/32 , Y02T90/34
摘要： The performance of a fuel cell power plant that decays, in an electric vehicle which makes frequent starts, is recovered by partially shutting down (65-67) the power plant. Recovery is enabled by a recovery enable flag (25) upon conditions such as vehicle using (22) low or no power (16), vehicle speed at or near zero (22), electric storage SOC above a threshold (23), and no recovery (19) during the last half-hour (or other duration). The recovery restart resets a timer (79) to ensure (19) that recovery is not attempted too often. The power plant then remains in a recovery stand-by mode (72) until a recovery restart flag (35) is set to 1 (74). The restart causes start-up of the fuel cell power plant (50, 52, 55), reaching an operational mode (57).
摘要翻译： 通过部分关闭（65-67）发电厂，恢复在频繁启动的电动车辆中衰减的燃料电池发电厂的性能。 在诸如车辆使用（22）低或无功率（16），车速等于或接近零（22），高于阈值（23）的电存储器SOC的条件下，恢复使能标志（25） 在最后半小时（或其他持续时间）内恢复（19）。 恢复重启将重置定时器（79）以确保（19）不会太频繁地尝试恢复。 然后发电厂保持恢复待机模式（72），直到恢复重启标志（35）设置为1（74）。 重新启动使得燃料电池发电厂（50,52,55）的启动达到操作模式（57）。
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公开(公告)号：US20130108941A1
公开(公告)日：2013-05-02
申请号：US13261523
申请日：2010-05-20
IPC分类号： H01M8/04
CPC分类号： H01M8/04298 , B60L11/1885 , H01M8/04201 , H01M8/04223 , H01M8/04225 , H01M8/04228 , H01M2250/20 , Y02E60/50 , Y02T90/32 , Y02T90/34
摘要： A fuel cell power plant keeps track, such as with a fuel-off timer (41), of the extent to which shutdown of the fuel cell power plant has occurred, in case the fuel cell power plant is quickly commanded to resume full operation. In one embodiment, if the fuel-off timer has not timed out at the time that the fuel cell power plant is ordered to resume full operation, a fuel-on timer is set (51) equal to the value of the fuel-off timer when the fuel cell power plant is ordered to resume full operation. Then, the fuel cell power plant is refueled (22), in a duration of time related to the setting of the fuel-off timer, rather than doing a full fuel purge.
摘要翻译： 在燃料电池发电厂被快速命令恢复完全运行的情况下，燃料电池发电厂跟踪燃料电池发电厂关闭的程度，例如燃料灭火定时器（41）。 在一个实施例中，如果在燃料电池发电厂被命令恢复全部运行时燃料关闭定时器没有超时，则将燃料启动定时器设置为等于燃料消耗定时器的值 当燃料电池发电厂被命令恢复全面运行时。 然后，燃料电池发电厂在与燃油定时器的设定有关的时间内加油（22），而不是进行全燃料净化。
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10.发明授权Avoiding coolant slump into reactant fields during PEM fuel cell shutdown 有权在PEM燃料电池关闭期间避免冷却剂坍落的反应物场公开(公告)号：US08062801B2
公开(公告)日：2011-11-22
申请号：US12310607
申请日：2006-08-31
IPC分类号： H01M8/04
CPC分类号： H01M8/04253 , H01M8/04097 , H01M8/04238 , H01M8/0444 , H01M8/04552 , H01M8/04753 , H01M8/04761 , H01M8/04768 , H01M8/04955 , H01M2008/1095
摘要： A fuel cell power plant (100) having a stack of fuel cells (102), each having an anode (104), a fuel reactant gas flow field plate (118), a cathode (106), an oxidant reactant gas flow field plate (120), and an electrolyte (101) between the anode and cathode. The stack has coolant channels (131), an air blower (144), air inlet (139a) and outlet (141a) valves, and a cathode recycle loop using either the primary air blower or a cathode recycle blower (135). A shutdown process includes recycling air through the cathodes with only one of an air inlet valve or air exit valve closed, while applying fresh fuel and recycling fuel through the anodes until oxygen is about 4% or less, or average cell voltage is about 0.2 or less, or for predetermined period of time.
摘要翻译： 一种燃料电池发电厂（100），其具有堆叠的燃料电池（102），每个具有阳极（104），燃料反应物气体流场板（118），阴极（106），氧化剂反应物气体流场板 （120）和在阳极和阴极之间的电解质（101）。 该堆叠具有冷却剂通道（131），鼓风机（144），空气入口（139a）和出口（141a）阀，以及使用一次风机或阴极再循环鼓风机（135）的阴极循环回路。 关闭过程包括通过阴极回收空气，只有空气入口阀或空气出口阀中的一个关闭，同时施加新鲜燃料并将燃料循环通过阳极直到氧气为约4％或更低，或者平均电池电压为约0.2或 较少或预定的时间段。
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