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1. 发明授权

US09722265B2 Pressure-based liquid level detection and control for a fuel cell stack assembly 有权
公开(公告)号：US09722265B2
公开(公告)日：2017-08-01
申请号：US13261225
申请日：2009-09-24
申请人： Praveen Narasimhamurthy
发明人： Praveen Narasimhamurthy
IPC分类号： H01M8/04 , H01M8/04291 , H01M8/04119 , H01M8/04223 , H01M8/0438 , H01M8/04537 , H01M8/04828 , H01M8/247 , H01M8/241 , H01M8/1018
CPC分类号： H01M8/04291 , H01M8/0267 , H01M8/04134 , H01M8/04223 , H01M8/04225 , H01M8/04228 , H01M8/04417 , H01M8/04544 , H01M8/04828 , H01M8/241 , H01M8/247 , H01M8/2485 , H01M2008/1095
摘要： A fluid detection system and method for a fuel cell power plant is disclosed having a pressure sensor (61, 161) positioned in a fuel cell stack assembly (10) to measure pressure of fluid/liquid in a fluid/liquid flow path (40, 42, 44) therein and to provide a pressure-based signal (90, 63). The pressure-based signal (90, 63) is used to control a liquid management arrangement (53) at least during start-up and shut-down of the cell stack assembly (10) to regulate water level. The liquid management arrangement (53) may include means (50, 51) for controllably applying and releasing a vacuum to a water manifold (44, 54; 100) of the cell stack assembly (10) to regulate water flow and level therein. The pressure-based control of water level may extend across the entire operating range of the cell stack assembly (10), or may be complemented during steady state operation by voltage-based sensors (66, 166).

2. 发明申请

US20060003204A1 Controlling fuel cell fuel purge in response to recycle fuel blower operating conditions 审中-公开
标题翻译：响应于回收燃料鼓风机操作条件控制燃料电池燃料吹扫
公开(公告)号：US20060003204A1
公开(公告)日：2006-01-05
申请号：US10884025
申请日：2004-07-01
申请人： Christopher Callahan , Praveen Narasimhamurthy , Christopher McCready
发明人： Christopher Callahan , Praveen Narasimhamurthy , Christopher McCready
IPC分类号： H01M8/04
CPC分类号： H01M8/04231 , H01M8/04007 , H01M8/04097
摘要： A fuel cell power plant fuel purge valve (26) is controlled in response to a parameter (40, 40a) of a fuel recycle blower which is indicative (20) of the recycle fuel impelled thereby, either alone or together with load current (33), pressure rise of the blower (50, 51), and temperature of the fuel recycle gas (44), to provide a pulse width modulation-control signal (28) controlling the purge valve.
摘要翻译：燃料电池发电厂燃料净化阀（26）响应于燃料循环鼓风机的参数（40,40a）来控制，燃料循环鼓风机单独地或与负载电流一起被指示（20）循环燃料， 33），鼓风机（50,51）的压力升高和燃料再循环气体（44）的温度，以提供控制排气阀的脉宽调制控制信号（28）。

3. 发明申请

US20120251909A1 PRESSURE-BASED LIQUID LEVEL DETECTION AND CONTROL FOR A FUEL CELL STACK ASSEMBLY 有权
标题翻译：基于压力的液位检测和控制燃料电池堆组件
公开(公告)号：US20120251909A1
公开(公告)日：2012-10-04
申请号：US13261225
申请日：2009-09-24
申请人： Praveen Narasimhamurthy
发明人： Praveen Narasimhamurthy
IPC分类号： H01M8/04
CPC分类号： H01M8/04291 , H01M8/0267 , H01M8/04134 , H01M8/04223 , H01M8/04225 , H01M8/04228 , H01M8/04417 , H01M8/04544 , H01M8/04828 , H01M8/241 , H01M8/247 , H01M8/2485 , H01M2008/1095
摘要： A fluid detection system and method for a fuel cell power plant is disclosed having a pressure sensor (61, 161) positioned in a fuel cell stack assembly (10) to measure pressure of fluid/liquid in a fluid/liquid flow path (40, 42, 44) therein and to provide a pressure-based signal (90, 63). The pressure-based signal (90, 63) is used to control a liquid management arrangement (53) at least during start-up and shut-down of the cell stack assembly (10) to regulate water level. The liquid management arrangement (53) may include means (50, 51) for controllably applying and releasing a vacuum to a water manifold (44, 54; 100) of the cell stack assembly (10) to regulate water flow and level therein. The pressure-based control of water level may extend across the entire operating range of the cell stack assembly (10), or may be complemented during steady state operation by voltage-based sensors (66, 166).
摘要翻译：公开了一种用于燃料电池发电厂的流体检测系统和方法，其具有定位在燃料电池堆组件（10）中的压力传感器（61,161），以测量流体/液体流动路径（40,40）中的流体/液体的压力， 42,44），并提供基于压力的信号（90,63）。至少在电池堆组件（10）的启动和关闭期间，基于压力的信号（90,63）用于控制液体管理装置（53）以调节水位。液体管理装置（53）可以包括用于可控制地将真空施加到电池堆组件（10）的水歧管（44,54; 100）上以调节其中的水流和水平的装置（50,51）。水位的基于压力的控制可以在电池组组件（10）的整个工作范围内延伸，或者可以在基于电压的传感器（66,166）的稳态操作期间补充。

4. 发明授权

US08084161B2 Combined accumulator and demineralizer functionality for a fuel cell 有权
标题翻译：用于燃料电池的组合式蓄能器和去矿物质功能
公开(公告)号：US08084161B2
公开(公告)日：2011-12-27
申请号：US11433075
申请日：2006-05-12
申请人： Garrett W. Fink , Jennifer M. Kurtz , Praveen Narasimhamurthy , Craig E. Evans
发明人： Garrett W. Fink , Jennifer M. Kurtz , Praveen Narasimhamurthy , Craig E. Evans
IPC分类号： H01M4/00 , H01M8/04
CPC分类号： H01M8/04052 , H01M8/04029 , H01M8/04291
摘要： A fuel cell power plant assembly includes an accumulator having a housing. In one example, at least one demineralizer portion is positioned to interact with fluid within the accumulator housing. This allows for warm fluid within the accumulator housing to provide heat to the demineralizer portion. In one example, the demineralizer portion is within the housing. Another example includes a separator supported within the housing of the accumulator. A disclosed example includes a conical shaped baffle as the separator. The separator separates liquid from gas and facilitates distributing fluid flow within the accumulator housing to provide increased heat exchange with the demineralizer portion within the housing.
摘要翻译：燃料电池发电厂组件包括具有外壳的蓄电池。在一个示例中，至少一个去矿物质部分定位成与蓄能器壳体内的流体相互作用。这允许蓄能器壳体内的暖流体向脱盐器部分提供热量。在一个示例中，软化器部分在壳体内。另一个例子包括支撑在蓄能器壳体内的分离器。所公开的示例包括作为分离器的锥形挡板。分离器将液体与气体分离，并且有助于将储存器壳体内的流体流分配以提供与壳体内的脱盐装置部分的增加的热交换。

5. 发明申请

US20100068565A1 VARIABLE FUEL PRESSURE CONTROL FOR A FUEL CELL 审中-公开
标题翻译：燃料电池的可变燃料压力控制
公开(公告)号：US20100068565A1
公开(公告)日：2010-03-18
申请号：US12447343
申请日：2006-12-19
申请人： Venkateshwarlu Yadha , Matthew P. Wilson , Praveen Narasimhamurthy
发明人： Venkateshwarlu Yadha , Matthew P. Wilson , Praveen Narasimhamurthy
IPC分类号： H01M8/00 , H01M2/02 , H01M8/04
CPC分类号： H01M8/04104 , H01M8/028 , H01M8/04089 , H01M8/04097 , H01M8/04134 , H01M8/04171 , H01M8/0438 , H01M8/04388 , H01M8/04395 , H01M8/04417 , H01M8/04753 , H01M8/04761 , H01M8/04783 , H01M2008/1095
摘要： A fuel cell includes a cathode having an air flow field. An anode includes an inlet and an outlet for providing unused fuel to a fuel recycling line. A pressure regulator is arranged upstream from an ejector and communicates with the air flow field for adjusting a fuel pressure at the motive inlet in response to an air pressure associated with the air flow field. The cathode and/or anode includes a porous water transport plate adjacent to the air flow field and/or fuel flow field respectively. A back pressure valve is arranged downstream from the air flow field for producing an air back pressure that generates a desired differential pressure across the water transport plate. The back pressure valve is controlled to achieve the desired differential pressure across the water transport plate so that the fuel cell maintains water balance.
摘要翻译：燃料电池包括具有空气流场的阴极。阳极包括用于将未使用的燃料提供给燃料再循环管线的入口和出口。压力调节器设置在喷射器的上游，并与空气流场连通，以响应于与空气流场相关联的空气压力来调节动力入口处的燃料压力。阴极和/或阳极分别包括与空气流场和/或燃料流场相邻的多孔水输送板。背压阀布置在空气流场的下游，用于产生跨越水输送板产生期望的压差的空气背压。控制背压阀以在水输送板上达到期望的压差，使得燃料电池保持水平衡。

6. 发明申请

US20100028729A1 FUEL CELL POWER PLANT INCLUDING A VARIABLE RESISTIVE DEVICE 审中-公开
标题翻译：燃料电池发电厂，包括可变电阻装置
公开(公告)号：US20100028729A1
公开(公告)日：2010-02-04
申请号：US12443748
申请日：2006-11-28
申请人： Michael S. Billups , Craig E. Evans , Praveen Narasimhamurthy , Evan C. Rege , William C. Rogers , Wesley E. Sedlacek , Frederic W. Stucklen
发明人： Michael S. Billups , Craig E. Evans , Praveen Narasimhamurthy , Evan C. Rege , William C. Rogers , Wesley E. Sedlacek , Frederic W. Stucklen
IPC分类号： H01M8/04
CPC分类号： H01M8/0488 , H01M8/04007 , H01M8/04238 , H01M8/04246 , H01M8/04253 , H01M8/04268 , H01M8/04291 , H01M8/04649 , H01M8/0494
摘要： A fuel cell power plant (20) includes a variable resistive device (30). In one example, the variable resistive device (30) is operationally associated directly with a cell stack assembly (22). The controller (32) selectively varies an electrical resistance of the variable resistive device (30) responsive to an operating condition of the power plant (20). By using a variable resistive device, a variety of control functions are possible to address various operating conditions of the power plant (20) or the cell stack assembly (22).
摘要翻译：燃料电池发电厂（20）包括可变电阻装置（30）。在一个示例中，可变电阻设备（30）在操作上与电池堆组件（22）直接相关联。响应于发电厂（20）的运行状态，控制器（32）有选择地改变可变电阻装置（30）的电阻。通过使用可变电阻装置，各种控制功能可以解决发电厂（20）或电池堆组件（22）的各种操作条件。

7. 发明申请

US20060275640A1 Combined accumulator and demineralizer functionality for a fuel cell 有权
标题翻译：用于燃料电池的组合式蓄能器和去矿物质功能
公开(公告)号：US20060275640A1
公开(公告)日：2006-12-07
申请号：US11433075
申请日：2006-05-12
申请人： Garrett Fink , Jennifer Kurtz , Praveen Narasimhamurthy , Craig Evans
发明人： Garrett Fink , Jennifer Kurtz , Praveen Narasimhamurthy , Craig Evans
IPC分类号： H01M8/04
CPC分类号： H01M8/04052 , H01M8/04029 , H01M8/04291
摘要： A fuel cell power plant assembly includes an accumulator having a housing. In one example, at least one demineralizer portion is positioned to interact with fluid within the accumulator housing. This allows for warm fluid within the accumulator housing to provide heat to the demineralizer portion. In one example, the demineralizer portion is within the housing. Another example includes a separator supported within the housing of the accumulator. A disclosed example includes a conical shaped baffle as the separator. The separator separates liquid from gas and facilitates distributing fluid flow within the accumulator housing to provide increased heat exchange with the demineralizer portion within the housing.
摘要翻译：燃料电池发电厂组件包括具有外壳的蓄电池。在一个示例中，至少一个去矿物质部分定位成与蓄能器壳体内的流体相互作用。这允许蓄能器壳体内的暖流体向脱盐器部分提供热量。在一个示例中，软化器部分在壳体内。另一个例子包括支撑在蓄能器壳体内的分离器。所公开的示例包括作为分离器的锥形挡板。分离器将液体与气体分离，并且有助于将储存器壳体内的流体流分配以提供与壳体内的脱盐装置部分的增加的热交换。

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