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31. 发明专利

CA2764267C FUEL CELL HAVING A FLOW DIRECTION OF A FUEL GAS OPPOSED TO A FLOW DIRECTION OF AN OXIDIZING GAS 未知
公开(公告)号：CA2764267C
公开(公告)日：2014-03-11
申请号：CA2764267
申请日：2010-05-21
申请人： TOYOTA MOTOR CO LTD
发明人： TAKEUCHI HIROAKI , OGAWA TOMOHIRO , NANBA RYOUICHI , TANIGUCHI TAKUMI , JOMORI SHINJI , IKEDA KOICHIRO , HASEGAWA SHIGEKI , ITO MASAYUKI , HAMADA HITOSHI , TAKESHITA NAOHIRO
IPC分类号： H01M8/02 , H01M8/10
摘要： A fuel cell comprises a power generation layer including an electrolyte membrane, an anode and a cathode, a fuel gas flow path layer, an oxidizing gas flow path layer, and an anode diffusion layer. The fuel gas flow path layer and the oxidizing gas flow path layer flow the fuel gas and the oxidizing gas in opposed flow directions. A power generation area of the fuel cell has an upstream region and a downstream region along the flow direction of the fuel gas. The fuel gas flow path layer is provided so that the upstream region and the downstream region have higher gas flow resistance than the midstream region. Thus, a midstream region has higher water vapor transfer resistance between the anode side and the cathode side than the upstream region and the downstream region.

32. 发明专利

CA2666675C FUEL CELL BATTERY SYSTEM 未知
公开(公告)号：CA2666675C
公开(公告)日：2012-04-24
申请号：CA2666675
申请日：2007-08-09
申请人： TOYOTA MOTOR CO LTD
发明人： OGAWA TOMOHIRO , SHIBATA KAZUNORI
IPC分类号： H01M8/04
摘要： A fuel cell battery (2) has a structure in which a plurality of cells are stacked and in-series connected. The cells include a cell (15), and one or more cells (16) of a cell stack (11). Hydrogen that has entered the fuel cell battery (2) from a channel (12) is supplied to each cell through a supply manifold (13). After the amount of hydrogen needed for power generation is consumed, gas is discharged as a fuel off-gas into a discharge manifold (14), and then flows into the cell (15). This prevents impurities contained in the fuel off-gas from being accumulated in the cells (16), and causes the impurities to be accumulated in the cell (15). Thus, variations in the amount of power generation among the cells can be restrained in a fuel cell battery system that employs a dead-end method.

33. 发明专利

AT524848T 未知
公开(公告)号：AT524848T
公开(公告)日：2011-09-15
申请号：AT08776350
申请日：2008-07-11
申请人： TOYOTA MOTOR CO LTD
发明人： OGAWA TOMOHIRO , SHIBATA KAZUNORI
IPC分类号： H01M8/04

34. 发明专利

DE112007000575T5 未知
公开(公告)号：DE112007000575T5
公开(公告)日：2009-02-26
申请号：DE112007000575
申请日：2007-03-30
申请人： TOYOTA MOTOR CO LTD
发明人： OGAWA TOMOHIRO , ARAKI YASUSHI
IPC分类号： H01M8/04 , H01M8/10
摘要： To provide a fuel cell system of dead end type capable of generating power with high efficiency. A fuel cell system 1 has a fuel cell 2 and pressure controlling means 9 that controls the pressure of a fuel gas. The fuel cell 2 is operated in a state where a channel 10 for a fuel off-gas is closed. When a predetermined time elapses, the channel 10 is opened for purging. The pressure controlling means 9 sets the pressure of the fuel gas at P1 from a point in time immediately after purging to a time t1 and sets the pressure of the fuel gas at P2, which is higher than P1, when the time t1 elapses.

35. 发明专利

CA2693961A1 FUEL CELL, FUEL CELL-EQUIPPED VEHICLE, AND MEMBRANE ELECTRODE UNIT 未知
公开(公告)号：CA2693961A1
公开(公告)日：2009-01-22
申请号：CA2693961
申请日：2008-07-11
申请人： TOYOTA MOTOR CO LTD
发明人： OGAWA TOMOHIRO , SHIBATA KAZUNORI
IPC分类号： H01M8/04
摘要： The invention provides a fuel cell, which includes: an electrolyte (23); an anode (22) that is placed on one side of the electrolyte (23) and has a fuel gas consumption surface on which fuel gas is consumed; a cathode (24) that is placed on the other side of the electrolyte (23); and a fuel gas passage (225n) having a first passage (14h) for distributing fuel gas to previously set regions on the fuel gas supply surface, a second passage (22) for supplying the distributed fuel gas to the regions, and a fuel gas supply portion (21n) for supplying fuel gas from the first passage (14h) to the second pas-sage (22). The fuel cell consumes most of the supplied fuel gas in the regions on the fuel gas consumption surface. A fuel gas passage (225n) has a fuel gas leakage suppression portion (14hg, 52n) for suppressing leakage of fuel gas between the first passage (14h) and the second passage (22).

36. 发明专利

CA2633575A1 FUEL CELL 未知
公开(公告)号：CA2633575A1
公开(公告)日：2007-07-26
申请号：CA2633575
申请日：2007-01-18
申请人： TOYOTA MOTOR CO LTD
发明人： SHIBATA KAZUNORI , OGAWA TOMOHIRO
IPC分类号： H01M8/02 , H01M8/10
摘要： In a fuel cell stack, each separator is constructed by sequentially stacking and joining an anode-facing plate 42, a middle plate 43, and a cathode-facing plate 44. The anode-facing plate 42 has multiple hydrogen inlets 422i arranged in a two-dimensionally distributed manner on its plate surface. This arrangement effectively prevents a decrease of power generation capacity due to local accumulation of water produced in the course of electrochemical reaction for power generation or other impurities on the surface of either an anode or a cathode.

37. 发明专利

CA3000478A1 FUEL CELL SYSTEM AND METHOD OF CONTROLLING THE SAME 未知
公开(公告)号：CA3000478A1
公开(公告)日：2018-10-06
申请号：CA3000478
申请日：2018-04-06
申请人： TOYOTA MOTOR CO LTD
发明人： OGAWA TOMOHIRO , MARUO TSUYOSHI , MATSUMOTO SHUN , TSUNEKAWA HIROYUKI
IPC分类号： H01M8/04089
摘要： A fuel cell system includes a fuel cell stack having a plurality of cells each having hydrogen channels, a hydrogen channel inlet, and a hydrogen channel outlet, a load supplied with power from the fuel cell stack, a circulation passage connecting the channel inlet with the channel outlet, a hydrogen pump provided in the circulation passage, and a controller. The controller rotates the hydrogen pump in a positive direction so as to feed the hydrogen gas in a first amount into each cell through the channel inlet, at a flow rate larger than a minimum flow rate required for power generation, and then rotate the hydrogen pump in a negative direction so as to feed the hydrogen gas into each cell through the channel outlet, during a period from stop of power supply to the load, to the next start of power supply.

38. 发明专利

DE102015119442B4 Brennstoffzellensystem und Steuerverfahren für Brennstoffzellensystem 未知
公开(公告)号：DE102015119442B4
公开(公告)日：2018-08-30
申请号：DE102015119442
申请日：2015-11-11
申请人： TOYOTA MOTOR CO LTD
发明人： TOIDA MASASHI , NAGANUMA YOSHIAKI , OGAWA TOMOHIRO , MARUO TSUYOSHI
IPC分类号： H01M8/04225 , H01M8/04302
摘要： Steuerverfahren für ein Brennstoffzellensystem (100), umfassend:einen Schritt (S10) zum Erfassen einer Starttemperatur einer Brennstoffzelle (20) beim Starten der Brennstoffzelle (20) ;einen Schritt (S30) zum Starten eines Aufwärmbetriebs der Brennstoffzelle (20), wenn die erfasste Starttemperatur der Brennstoffzelle (20) gleich oder niedriger als eine erste vorgegebene Temperatur ist, wobei der Aufwärmbetrieb einen Heizwert der Brennstoffzelle (20) erhöht;einen Schritt (S40) zum Bestimmen, ob die Starttemperatur der Brennstoffzelle (20) gleich oder unter einem zweiten vorgegebenen Wert liegt, der niedriger ist als die erste vorgegebene Temperatur; undeinen Schritt (S50) zum Starten einer Abgassteuerung (S120, S130), wenn die Starttemperatur der Brennstoffzelle (20) gleich oder unter dem zweiten vorgegebenen Wert ist und die Temperatur der Brennstoffzelle (20) einen Ende-Schwellenwert des Aufwärmbetriebs erreicht, um eine Strömungsrate eines Abgases, das in einen strömungswegbildenden Abschnitt strömt, der zumindest einen Teil eines Strömungswegs des Abgases der Brennstoffzelle (20) bildet, auf eine Strömungsrate zu steuern, die im Vergleich zur Strömungsrate beim Normalbetrieb der Brennstoffzelle (20) eingeschränkt ist, und die Temperatur der Brennstoffzelle zu erhöhen.

39. 发明专利

CA2910408C FUEL CELL SYSTEM AND FUEL CELL SYSTEM CONTROL METHOD 未知
公开(公告)号：CA2910408C
公开(公告)日：2018-03-13
申请号：CA2910408
申请日：2015-10-27
申请人： TOYOTA MOTOR CO LTD
发明人： TOIDA MASASHI , NAGANUMA YOSHIAKI , OGAWA TOMOHIRO , MARUO TSUYOSHI
IPC分类号： H01M8/04089 , H01M8/043 , H01M8/0432 , H01M8/04746
摘要： To provide technology that is capable of inhibiting a decrease in starting properties of a pump in a low-temperature environment. A fuel cell system is equipped with a control unit, a fuel cell, and a pump. The control unit acquires the temperature of the fuel cell as a parameter expressing the temperature of the pump while operation of the fuel cell is stopped. The control unit rotates rotation body of the pump when it is detected that the temperature of the pump is a threshold value or less set within a predetermined range lower than the freezing point based on the detected temperature of the fuel cell.

40. 发明专利

CA2909836C OPERATION CONTROL METHOD OF FUEL CELL AND OPERATION CONTROL APPARATUS OF FUEL CELL 未知
公开(公告)号：CA2909836C
公开(公告)日：2018-03-06
申请号：CA2909836
申请日：2015-10-20
申请人： TOYOTA MOTOR CO LTD
发明人： NAGANUMA YOSHIAKI , TOIDA MASASHI , OGAWA TOMOHIRO , MARUO TSUYOSHI
IPC分类号： H01M8/0432 , H01M8/04746 , H01M8/04858
摘要： The operation control method of a fuel cell includes acquiring a startup temperature of the fuel cell; acquiring a present temperature of the fuel cell; setting a present target operation point of the fuel cell that is identified by an output voltage value and an output current value based on the startup temperature, or based on the startup temperature and the present temperature; controlling at least one of the flow of the reaction gas supplied to the fuel cell, and an output voltage of the fuel cell so that the operation point of the fuel cell becomes the target operation point, and setting the target operation point includes a process of setting an operation point having a low output voltage value as the target operation point when the startup temperature is low as compared to the case when the startup temperature is high, if the present temperature is the same.

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