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1. 发明专利

BRPI0506995A 未知
公开(公告)号：BRPI0506995A
公开(公告)日：2007-07-03
申请号：BRPI0506995
申请日：2005-01-27
申请人： UTC FUEL CELLS LLC
发明人： MARGIOTT PAUL R , PERRY MICHAEL L , REISER CARL A , VUKOVINSKY MICHAEL L
IPC分类号： H01M8/04 , H01M8/24
摘要： Fuel cell power plants ( 19, 47, 60, 86, 102, 112, 121 ) include recycle fuel from a fuel exit ( 29 ) of the last fuel flow field ( 23, 52, 64, 89 ) of a series of flow fields ( 20 - 23; 49 - 52; 61 - 64; 87 - 89 ) labeled M-N through M, applied either to the Mth flow fields or both the Mth and the (M-1)th flow fields. The fuel recycle impeller is a blower ( 30 ), an ejector ( 30 b) or an electrochemical hydrogen pump ( 30 c). Fuel from a source ( 77 ) may be applied both to the first fuel flow field ( 87 ) and an additional fuel flow field ( 88, 74, 75, 89 ) of a series of flow fields to reduce pressure drop and flow rate requirements in the first of the series of flow fields and assure more fuel in the additional fuel flow field. Flow to the additional fuel flow field may be controlled by voltage ( 126 ) in such field or fuel content ( 128 ) of its exhaust. Transient fuel volume is provided by a tank ( 125 ).

2. 发明专利

BRPI0413357A 未知
公开(公告)号：BRPI0413357A
公开(公告)日：2006-10-10
申请号：BRPI0413357
申请日：2004-07-29
申请人： UTC FUEL CELLS LLC
发明人： MARGIOTT PAUL R , PRELI FRANCIS R JR , KULP GALEN W , PERRY MICHAEL L , REISER CARL A , BALLIET RYAN J
IPC分类号： H01M20060101 , H01M2/00 , H01M2/02 , H01M2/14 , H01M8/00 , H01M8/04 , H01M8/18
摘要： The invention is a hydrogen passivation shut down system for a fuel cell power plant (10). An anode flow path (24) is in fluid communication with an anode catalyst (14) for directing hydrogen fuel to flow adjacent to the anode catalyst (14), and a cathode flow path (38) is in fluid communication with a cathode catalyst (16) for directing an oxidant to flow adjacent to the cathode catalyst (16) of a fuel cell (12). Hydrogen fuel is permitted to transfer between the anode flow path (24) and the cathode flow path (38). A hydrogen reservoir (66) is secured in fluid communication with the anode flow path (24) for receiving and storing hydrogen during fuel cell (12) operation, and for releasing the hydrogen into the fuel cell (12) whenever the fuel cell (12) is shut down.

3. 发明专利

AU2003296949A8 Start up system and method for a fuel cell power plant using a cathode electrode fuel purge 未知
公开(公告)号：AU2003296949A8
公开(公告)日：2004-07-29
申请号：AU2003296949
申请日：2003-12-11
申请人： UTC FUEL CELLS LLC
发明人： BALLIET RYAN J , PERRY MICHAEL L , REISER CARL A , PATTERSON TIMOTHY W
IPC分类号： H01M8/00 , H01M8/04 , H02J20060101
摘要： The invention is a start up system and method for a fuel cell power plant (10) using a purging of the cathode flow field (38) with a hydrogen rich reducing fluid fuel to minimize corrosion of the cathode electrode (16). The method for starting up the shut down fuel cell power plant (10) includes the steps of: a. purging the cathode flow field (38) with the reducing fluid fuel; b. then, directing the reducing fluid fuel to flow through an anode flow field (28); c. next, terminating flow of the fuel through the cathode flow field (38) and directing an oxygen containing oxidant to flow through the cathode flow field (38); and, d. finally, connecting a primary load (70) to the fuel cell (12) so that electrical current flows from the fuel cell (12) to the primary load (70).

4. 发明专利

AU2003296949A1 START UP SYSTEM AND METHOD FOR A FUEL CELL POWER PLANT USING A CATHODE ELECTRODE FUEL PURGE 未知
公开(公告)号：AU2003296949A1
公开(公告)日：2004-07-29
申请号：AU2003296949
申请日：2003-12-11
申请人： UTC FUEL CELLS LLC
发明人： BALLIET RYAN J , REISER CARL A , PATTERSON TIMOTHY W , PERRY MICHAEL L
IPC分类号： H01M8/00 , H01M8/04 , H02J20060101
摘要： The invention is a start up system and method for a fuel cell power plant (10) using a purging of the cathode flow field (38) with a hydrogen rich reducing fluid fuel to minimize corrosion of the cathode electrode (16). The method for starting up the shut down fuel cell power plant (10) includes the steps of: a. purging the cathode flow field (38) with the reducing fluid fuel; b. then, directing the reducing fluid fuel to flow through an anode flow field (28); c. next, terminating flow of the fuel through the cathode flow field (38) and directing an oxygen containing oxidant to flow through the cathode flow field (38); and, d. finally, connecting a primary load (70) to the fuel cell (12) so that electrical current flows from the fuel cell (12) to the primary load (70).

5. 发明申请

WO2007070047A3 OXYGEN-CONSUMING ZERO-GAP ELECTROLYSIS CELLS WITH POROUS/SOLID PLATES 审中-公开
标题翻译：含多孔/固体电极的消耗式零气孔电解质电池
公开(公告)号：WO2007070047A3
公开(公告)日：2007-12-13
申请号：PCT/US2005045298
申请日：2005-12-14
申请人： UTC FUEL CELLS LLC , PERRY MICHAEL L
发明人： PERRY MICHAEL L
IPC分类号： C25B1/26 , C25B1/16 , C25B1/34 , C25B1/46
CPC分类号： C25B1/26 , C25B9/206 , C25B15/08
摘要： An electrolysis stack (53) with oxygen-depolarized cathodes (31) employs solid-plate anodes (38) and porous-plate cathodes (42). The stack (53) of electrolysis cells (29) (e.g, hydrogen-chloride or chlor-allkali cells) each include an ion exchange membrane (32) sandwiched between an anode conductor (34) and a permeable cathode (35); an oxygen-consuming gas diffusion cathode (31) is adjacent the cathode conductor of each cell. Between the anode conductor of one cell and the gas diffusion cathode of an adjacent cell there is a composite bipolar plate (51) including a solid plate (38) having channels (39) for conducing salt solution and product of the process; the bipolar plates also include a porous plate (42) having channels (43) for conducting oxidant adjacent the gas diffusion cathode and channels (49) connected to a source of liquid (such as water or dilute sodium hydroxide).
摘要翻译：具有氧去极化阴极（31）的电解堆叠（53）采用固体阳极（38）和多孔板阴极（42）。电解槽（29）的堆叠（53）（例如氯化氢或氯全质电池）各自包括夹在阳极导体（34）和可渗透阴极（35）之间的离子交换膜（32）。耗氧气体扩散阴极（31）与每个电池的阴极导体相邻。在一个电池的阳极导体和相邻电池的气体扩散阴极之间存在一个复合双极板（51），它包括固体板（38），该固体板具有用于引导盐溶液的通道（39）和该工艺的产物; 双极板还包括多孔板（42），其具有用于在气体扩散阴极附近传导氧化剂的通道（43）和连接到液体源（例如水或稀氢氧化钠）的通道（49）。

6. 发明专利

DE112005001378T5 未知
公开(公告)号：DE112005001378T5
公开(公告)日：2007-05-24
申请号：DE112005001378
申请日：2005-06-14
申请人： UTC FUEL CELLS LLC
发明人： BURLATSKY SERGEI F , HERTZBERG JARED B , CIPOLLINI NED E , CONDIT DAVID A , GARVI THOMAS D , LEISTRA JAMES A , PERRY MICHAEL L , MADDEN THOMAS H
IPC分类号： H01M4/86 , H01M4/90 , H01M4/92 , H01M8/10
摘要： A membrane electrode assembly includes an anode; a cathode; a membrane disposed between the anode and the cathode; and an extended catalyzed layer between the membrane and at least one electrode of the anode and the cathode. The extended catalyzed layer includes catalyst particles embedded in membrane material and preferably includes a first plurality of particles which are electrically connected to the at least one electrode. The extended catalyzed layer may further preferably have a second plurality of particles which are electrically disconnected from the at least one electrode.

7. 发明专利

DE112004000580T5 未知
公开(公告)号：DE112004000580T5
公开(公告)日：2006-02-02
申请号：DE112004000580
申请日：2004-03-26
申请人： UTC FUEL CELLS LLC
发明人： BALLIET RYAN J , JARVI THOMAS D , PEDERSEN LARS M , PERRY MICHAEL L , REISER CARL A
IPC分类号： H01M4/92 , H01M8/00 , H01M8/02 , H01M8/04 , H01M8/10
摘要： A fuel cell power plant ( 10 ) having a fuel concentration sensor cell ( 54 ) is disclosed for detecting a concentration of fuel in a fuel cell ( 12 ) of the plant ( 10 ). A portion of a fuel exhaust stream is directed to flow through the sensor cell ( 54 ) adjacent to a membrane electrode assembly ( 60 ) of the sensor cell ( 54 ). A power circuit ( 62 ) may or may not deliver an electrical current to the cell ( 12 ), while changes in voltage across the cell ( 12 ) that are proportional to changes in hydrogen concentrations within the fuel exhaust stream are detected by a detector ( 68 ) which communicates the changes to a controller ( 108 ) for controlling a rate of fuel supply to the fuel cell ( 12 ). A porous sensor water transport plate ( 74 ) cools, humidifies delivers and removes liquid from the sensor cell ( 12 ).

8. 发明专利

DE10297156T5 未知
公开(公告)号：DE10297156T5
公开(公告)日：2004-07-29
申请号：DE10297156
申请日：2002-08-26
申请人： UTC FUEL CELLS LLC
发明人： DUFNER BRIAN F , PERRY MICHAEL L , TROCCIOLA JOHN C , YANG DELIANG , YI JUNG
IPC分类号： H01M2/02 , H01M2/08 , H01M8/02 , H01M8/04 , H01M8/24
摘要： The invention is a bi-zone water transport plate for a fuel cell wherein the plate includes a water permeability zone and a bubble barrier zone. The bubble barrier zone extends between all reactive perimeters of the plate, has a pore size of less than 20 microns, and has a thickness of less than 25 percent of a shortest distance between opposed contact surfaces of the plate. The water permeability zone has a pore size of at least 100 percent greater than the pore size of the bubble barrier zone, and has a thickness of greater than 75 percent of the shortest distance between the opposed contact surfaces of the plate. By having a separate bubble barrier zone, the plate affords enhanced water permeability while the bubble barrier maintains a gas seal.

9. 发明专利

DE112004002139T5 未知
公开(公告)号：DE112004002139T5
公开(公告)日：2006-10-12
申请号：DE112004002139
申请日：2004-11-04
申请人： UTC FUEL CELLS LLC
发明人： SCHROOTEN JEREMY A , SCHMIDT WAYDE R , RICE CYNTHIA A , PERRY MICHAEL L , MICHELS H HARVEY , MARZULLO JESSE M , HAGANS PATRICK L
IPC分类号： H01M8/04 , F28D20/02 , F28F19/00 , H01M20060101 , H01M8/02
摘要： A freeze tolerant fuel cell power plant ( 10 ) includes at least one fuel cell ( 12 ), a coolant loop ( 18 ) including a freeze tolerant accumulator ( 22 ) for storing and separating a water immiscible fluid and water coolant or water component, a direct contact heat exchanger ( 56 ) for mixing the water immiscible fluid and the water coolant within a mixing region ( 72 ) of the heat exchanger ( 56 ), a coolant pump ( 21 ) for circulating the coolant through the coolant loop ( 18 ), a radiator loop ( 84 ) for circulating the water immiscible fluid through the heat exchanger ( 56 ), and a radiator ( 86 ) for removing heat from the coolant. The plant ( 10 ) utilizes the water immiscible fluid during steady-state operation to cool the fuel cell and during shut down of the plant to displace water from the fuel cell ( 12 ) to the freeze tolerant accumulator ( 22 ).

10. 发明专利

DE10394016T5 未知
公开(公告)号：DE10394016T5
公开(公告)日：2006-01-12
申请号：DE10394016
申请日：2003-12-11
申请人： UTC FUEL CELLS LLC
发明人： BALLIET RYAN J , REISER CARL A , PATTERSON TIMOTHY W , PERRY MICHAEL L
IPC分类号： H01M8/00 , H01M8/04 , H02J20060101
摘要： The invention is a start up system and method for a fuel cell power plant (10) using a purging of the cathode flow field (38) with a hydrogen rich reducing fluid fuel to minimize corrosion of the cathode electrode (16). The method for starting up the shut down fuel cell power plant (10) includes the steps of: a. purging the cathode flow field (38) with the reducing fluid fuel; b. then, directing the reducing fluid fuel to flow through an anode flow field (28); c. next, terminating flow of the fuel through the cathode flow field (38) and directing an oxygen containing oxidant to flow through the cathode flow field (38); and, d. finally, connecting a primary load (70) to the fuel cell (12) so that electrical current flows from the fuel cell (12) to the primary load (70).

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