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公开(公告)号：US20140220466A1
公开(公告)日：2014-08-07
申请号：US14345932
申请日：2012-09-21
IPC分类号： H01M8/04
CPC分类号： H01M8/04679 , H01M8/04089 , H01M8/04201 , H01M8/04388 , H01M8/04395 , H01M8/04447 , H01M8/04559 , H01M8/2415 , H01M8/2475 , H01M8/2484 , H01M2008/1095 , Y02E60/50
摘要： A fuel cell (FC) system operating as its own hydrogen leak detector. The system including at least one cathode and cathode conduit for passage of oxidant to to the cathode and a housing containing one or more FCs and defining a plenum around the FC. A ventilation system forces air from the plenum into the cathode conduit and a control system monitors the FC voltage and detects a drop in voltage attributable to hydrogen in the cathode conduit. A control system may include actual cell voltage monitoring of the FC or of one or more cells in the FC stack and a processor for receiving inputs indicative of the operation of the FC or FC stack and/or to determine an expected voltage of FC(s) being monitored and whether the difference between the actual and expected voltage(s) exceeds a predetermined threshold indicative of a predetermined level of hydrogen in the cathode conduit.
摘要翻译： 作为自己的氢气泄漏检测器的燃料电池（FC）系统。 该系统包括用于使氧化剂通入阴极的至少一个阴极和阴极导管以及包含一个或多个FC并且围绕FC限定集气室的壳体。 通风系统迫使来自气室的空气进入阴极管道，并且控制系统监测FC电压并检测归因于阴极管道中的氢气的电压降。 控制系统可以包括FC或FC堆叠中的一个或多个单元的实际单元电压监视，以及用于接收指示FC或FC堆栈的操作的输入和/或确定FC（s）的预期电压的处理器 ）以及实际电压和预期电压之间的差是否超过了指示阴极管道中预定水平的氢的预定阈值。
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公开(公告)号：US09726635B2
公开(公告)日：2017-08-08
申请号：US14367453
申请日：2012-12-19
IPC分类号： G01N27/417 , H01M8/0662 , H01M8/04089 , H01M8/04537 , C01B3/56 , B01D53/22 , C01B3/50 , C01B3/58
CPC分类号： G01N27/417 , B01D53/228 , B01D2256/16 , C01B3/503 , C01B3/56 , C01B3/58 , H01M8/04089 , H01M8/04537 , H01M8/0662 , Y02E60/324
摘要： A pair of fuel cells are configured as a hydrogen purity monitor. A first cell, acting as a reference cell, is configured to generate electrical current from the electrochemical reaction of hydrogen and oxidant and has a first fuel inlet configured to receive hydrogen from a first hydrogen source. A second fuel cell, acting as a test cell, is configured to generate electrical current from the electrochemical reaction of hydrogen and oxidant and has a second fuel inlet configured to receive hydrogen from a second hydrogen source. A control system is configured to apply an electrical load to each fuel cell and determine an electrical output of each fuel cell. The control system has a comparator for comparing the electrical outputs of the first and second fuel cells and a purity monitor output configured to give an indication of hydrogen purity based on an output of the comparator.
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公开(公告)号：US10862146B2
公开(公告)日：2020-12-08
申请号：US15312250
申请日：2015-05-05
IPC分类号： H01M8/0444 , H01M8/249 , H01M8/04992 , H01M8/04537 , H01M8/0612
摘要： An apparatus (10) configured to determine reactant purity comprising: a first fuel cell (11) configured to generate electrical current from the electrochemical reaction between two reactants, having a first reactant inlet (13) configured to receive a test reactant comprising one of the two reactants from a first reactant source (7, 5, 16); a second fuel cell (12) configured to generate electrical current from the electrochemical reaction between the two reactants, having a second reactant inlet (14) configured to receive the test reactant from a second reactant source (5); a controller (20) configured to apply an electrical load to each fuel cell and determine an electrical output difference, ODt, between an electrical output of the first fuel cell (11) and an electrical output of the second fuel cell (12), and determine a difference between a predicted output difference and the determined electrical output difference, ODt, the predicted output difference determined based on a historical output of difference and a historical rate of change in said output difference determined at an earlier time, said controller (20) configured to provide a purity output indicative of the test reactant purity at least based on the difference between the predicted and determined output difference.
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公开(公告)号：US09496571B2
公开(公告)日：2016-11-15
申请号：US14345932
申请日：2012-09-21
CPC分类号： H01M8/04679 , H01M8/04089 , H01M8/04201 , H01M8/04388 , H01M8/04395 , H01M8/04447 , H01M8/04559 , H01M8/2415 , H01M8/2475 , H01M8/2484 , H01M2008/1095 , Y02E60/50
摘要： A fuel cell (FC) system operating as its own hydrogen leak detector. The system including at least one cathode and cathode conduit for passage of oxidant to the cathode and a housing containing one or more FCs and defining a plenum around the FC. A ventilation system forces air from the plenum into the cathode conduit and a control system monitors the FC voltage and detects a drop in voltage attributable to hydrogen in the cathode conduit. A control system may include actual cell voltage monitoring of the FC or of one or more cells in the FC stack and a processor for receiving inputs indicative of the operation of the FC or FC stack and/or to determine an expected voltage of FC(s) being monitored and whether the difference between the actual and expected voltage(s) exceeds a predetermined threshold indicative of a predetermined level of hydrogen in the cathode conduit.
摘要翻译： 作为自己的氢气泄漏检测器的燃料电池（FC）系统。 该系统包括用于使氧化剂通过阴极的至少一个阴极和阴极导管以及包含一个或多个FC并且围绕FC限定集气室的壳体。 通风系统迫使来自气室的空气进入阴极管道，并且控制系统监测FC电压并检测归因于阴极管道中的氢气的电压降。 控制系统可以包括FC或FC堆叠中的一个或多个单元的实际单元电压监视，以及用于接收指示FC或FC堆栈的操作的输入和/或确定FC（s）的预期电压的处理器 ）以及实际电压和预期电压之间的差是否超过了指示阴极管道中预定水平的氢的预定阈值。
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公开(公告)号：US11362351B2
公开(公告)日：2022-06-14
申请号：US17098223
申请日：2020-11-13
IPC分类号： H01M8/0444 , H01M8/04992 , H01M8/04537 , H01M8/249 , H01M8/0612
摘要： An apparatus (10) configured to determine reactant purity comprising: a first fuel cell (11) configured to generate electrical current from the electrochemical reaction between two reactants, having a first reactant inlet (13) configured to receive a test reactant comprising one of the two reactants from a first reactant source (7, 5, 16); a second fuel cell (12) configured to generate electrical current from the electrochemical reaction between the two reactants, having a second reactant inlet (14) configured to receive the test reactant from a second reactant source (5); a controller (20) configured to apply an electrical load to each fuel cell and determine an electrical output difference, ODt, between an electrical output of the first fuel cell (11) and an electrical output of the second fuel cell (12), and determine a difference between a predicted output difference and the determined electrical output difference, ODt, the predicted output difference determined based on a historical output of difference and a historical rate of change in said output difference determined at an earlier time, said controller (20) configured to provide a purity output indicative of the test reactant purity at least based on the difference between the predicted and determined output difference.
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公开(公告)号：US20170098840A1
公开(公告)日：2017-04-06
申请号：US15312250
申请日：2015-05-05
IPC分类号： H01M8/0444 , H01M8/04537 , H01M8/04992
CPC分类号： H01M8/04447 , H01M8/04455 , H01M8/04559 , H01M8/04992 , H01M8/0612 , H01M8/249 , H01M2250/00 , H01M2250/10 , Y02B90/14 , Y02P90/40
摘要： An apparatus (10) configured to determine reactant purity comprising: a first fuel cell (11) configured to generate electrical current from the electrochemical reaction between two reactants, having a first reactant inlet (13) configured to receive a test reactant comprising one of the two reactants from a first reactant source (7, 5, 16); a second fuel cell (12) configured to generate electrical current from the electrochemical reaction between the two reactants, having a second reactant inlet (14) configured to receive the test reactant from a second reactant source (5); a controller (20) configured to apply an electrical load to each fuel cell and determine an electrical output difference, ODt, between an electrical output of the first fuel cell (11) and an electrical output of the second fuel cell (12), and determine a difference between a predicted output difference and the determined electrical output difference, ODt, the predicted output difference determined based on a historical output of difference and a historical rate of change in said output difference determined at an earlier time, said controller (20) configured to provide a purity output indicative of the test reactant purity at least based on the difference between the predicted and determined output difference.
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公开(公告)号：US20210066735A1
公开(公告)日：2021-03-04
申请号：US17098223
申请日：2020-11-13
IPC分类号： H01M8/0444 , H01M8/04992 , H01M8/04537 , H01M8/249
摘要： An apparatus (10) configured to determine reactant purity comprising: a first fuel cell (11) configured to generate electrical current from the electrochemical reaction between two reactants, having a first reactant inlet (13) configured to receive a test reactant comprising one of the two reactants from a first reactant source (7, 5, 16); a second fuel cell (12) configured to generate electrical current from the electrochemical reaction between the two reactants, having a second reactant inlet (14) configured to receive the test reactant from a second reactant source (5); a controller (20) configured to apply an electrical load to each fuel cell and determine an electrical output difference, ODt, between an electrical output of the first fuel cell (11) and an electrical output of the second fuel cell (12), and determine a difference between a predicted output difference and the determined electrical output difference, ODt, the predicted output difference determined based on a historical output of difference and a historical rate of change in said output difference determined at an earlier time, said controller (20) configured to provide a purity output indicative of the test reactant purity at least based on the difference between the predicted and determined output difference.
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公开(公告)号：US10003092B2
公开(公告)日：2018-06-19
申请号：US14428918
申请日：2013-09-16
发明人： Ashley James Kells , Pratap Rama , Paul Leonard Adcock , Simon Edward Foster , Jonathan Cole , Emma Farndon
IPC分类号： H01M8/04007 , H01M8/04029 , H01M8/04291 , H01M8/04298 , H01M8/043 , H01M8/04313 , H01M8/0438 , H01M8/04492 , H01M8/04694 , H01M8/2485
CPC分类号： H01M8/04074 , H01M8/04014 , H01M8/04029 , H01M8/04552 , H01M8/04559 , H01M8/04768 , H01M8/2484
摘要： A fuel cell stack assembly has a plurality of cells each having a fluid coolant conduit. A coolant feed manifold has a first inlet and a second inlet and is coupled to each fluid coolant conduit for distribution of fluid coolant within each cell. A pump is coupled for delivery of fluid coolant to the coolant feed manifold through the first and second inlets. A flow control assembly is configured to periodically modify the relative flow rates of fluid coolant through the first and second inlets so that stagnant regions in the coolant feed manifold are avoided. The flow control assembly may also be adapted to periodically interrupt the flow path between the pump and the manifold such that the fluid coolant is delivered to the manifold intermittently, thereby enabling low water flows below a minimum set point of the pump.
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公开(公告)号：US09450255B2
公开(公告)日：2016-09-20
申请号：US14428953
申请日：2013-09-16
IPC分类号： H01M8/04029 , H01M8/04014 , H01M8/04007 , H01M8/04 , H01M8/24 , H01M8/02 , H01M8/10
CPC分类号： H01M8/04029 , H01M8/0202 , H01M8/0267 , H01M8/04044 , H01M8/04067 , H01M8/04485 , H01M8/04768 , H01M8/241 , H01M8/2465 , H01M8/2483 , H01M2008/1095 , Y02E60/50
摘要： A fuel cell stack assembly has a plurality of fuel cells each having a fluid coolant conduit. A coolant feed inlet manifold has a coolant inlet, and the coolant feed inlet manifold is coupled to each fluid coolant conduit for distribution of coolant to each fuel cell. The coolant feed inlet manifold also has a discharge conduit located at one end of the coolant feed inlet manifold. The discharge conduit is configured to discharge excess coolant from the coolant feed inlet manifold. By supplying excess coolant to the coolant feed inlet manifold problems arising due to very low coolant flow rates through the fluid coolant conduits in the fuel cells can be reduced or eliminated.
摘要翻译： 燃料电池堆组件具有多个燃料电池，每个燃料电池均具有流体冷却剂导管。 冷却剂进料歧管具有冷却剂入口，并且冷却剂进料歧管联接到每个流体冷却剂管道，以将冷却剂分配到每个燃料电池。 冷却剂进料歧管还具有位于冷却剂进料歧管一端的排放导管。 排放管道构造成从冷却剂进料歧管排出多余的冷却剂。 通过向冷却剂供给入口歧管供应多余的冷却剂，可以减少或消除由于通过燃料电池中的流体冷却剂导管的非常低的冷却剂流速而引起的问题。
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公开(公告)号：US20150255810A1
公开(公告)日：2015-09-10
申请号：US14428953
申请日：2013-09-16
CPC分类号： H01M8/04029 , H01M8/0202 , H01M8/0267 , H01M8/04044 , H01M8/04067 , H01M8/04485 , H01M8/04768 , H01M8/241 , H01M8/2465 , H01M8/2483 , H01M2008/1095 , Y02E60/50
摘要： A fuel cell stack assembly has a plurality of fuel cells each having a fluid coolant conduit. A coolant feed inlet manifold has a coolant inlet, and the coolant feed inlet manifold is coupled to each fluid coolant conduit for distribution of coolant to each fuel cell. The coolant feed inlet manifold also has a discharge conduit located at one end of the coolant feed inlet manifold. The discharge conduit is configured to discharge excess coolant from the coolant feed inlet manifold. By supplying excess coolant to the coolant feed inlet manifold problems arising due to very low coolant flow rates through the fluid coolant conduits in the fuel cells can be reduced or eliminated.
摘要翻译： 燃料电池堆组件具有多个燃料电池，每个燃料电池均具有流体冷却剂导管。 冷却剂进料歧管具有冷却剂入口，并且冷却剂进料歧管联接到每个流体冷却剂管道，以将冷却剂分配到每个燃料电池。 冷却剂进料歧管还具有位于冷却剂进料歧管一端的排放导管。 排放管道构造成从冷却剂进料歧管排出多余的冷却剂。 通过向冷却剂供给入口歧管供应多余的冷却剂，可以减少或消除由于通过燃料电池中的流体冷却剂导管的非常低的冷却剂流速而引起的问题。
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