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1. 发明专利

JP2002034102A FUEL CELL VEHICLE AND METHOD OF STOPPING REFORMER THEREFOR 失效
公开(公告)号：JP2002034102A
公开(公告)日：2002-01-31
申请号：JP2000214467
申请日：2000-07-14
申请人： FUJI ELECTRIC CO LTD
发明人： UJIIE TAKASHI , NAKAGAWA ISAO
IPC分类号： B01D53/22 , B60L11/18 , C01B3/32 , C01B3/38 , H01M8/04
摘要： PROBLEM TO BE SOLVED: To provide a fuel cell vehicle that can be stopped in a reformer purged quickly and sealed with an inert gas, based on a vehicle stop or abnormal signal by using a simple method, without providing an inert gas cylinder, and to provide a method of stopping the reformer for the vehicle. SOLUTION: The fuel cell vehicle is provided with a reformer 5, an air compressor 21, an oxidizer gas supply line 61, that is provided to supply an oxidizer gas from the air compressor 21 to the reformer 5 and has a first change-over valve 82, an inert gas supply line 62 that is provided parallel to the line 61 to supply the inert gas from the air compressor 21 to the reformer 5, and has an oxygen/nitrogen separator 15 for forming the inert gas in addition to second change-over valves 83a, 83b, and a control device 81 that controls the change-over of the valves to close the first valve 82 and to open the second ones 83a, 83b, when the vehicle is in a stop or if abnormality occurs to the vehicle.

2. 发明专利

JP2000340248A SEALING METHOD FOR FUEL CELL MANIFOLD 失效
公开(公告)号：JP2000340248A
公开(公告)日：2000-12-08
申请号：JP14811299
申请日：1999-05-27
申请人： FUJI ELECTRIC CO LTD
发明人： UJIIE TAKASHI , HARADA TAKASHI
IPC分类号： H01M8/24
摘要： PROBLEM TO BE SOLVED: To provide a sealing method for a fuel cell manifold allowing a sealing member to be filled in bumps or a small gap on the side of a fuel cell layered body, to assure proper thickness of the sealing member, and to provide an inexpensive sealing member having a simple shape. SOLUTION: Sealing members 6, 7 made of two kinds of unvulcanized rubber having different flow property in vulcanizing reaction are layered between a fuel cell layered body 2 and a manifold frame 1a and the unvulcanized rubbers are vulcanized for cross-linking, then the manifold is squeezed via the sealing members 6, 7. The flow property of the unvulcanized rubbers in vulcanizing reaction are set so that the flow property of the rubber 7 placed on the fuel cell layered body side is larger than that of the rubber 6 on the manifold side.

3. 发明专利

JPH09102324A PHOSPHORIC-ACID TYPE FUEL CELL GENERATING SYSTEM 失效
公开(公告)号：JPH09102324A
公开(公告)日：1997-04-15
申请号：JP25847095
申请日：1995-10-05
申请人： FUJI ELECTRIC CO LTD
发明人： UJIIE TAKASHI
IPC分类号： H01M8/04
摘要： PROBLEM TO BE SOLVED: To provide a phosphoric-acid type fuel cell generating system which can be operated efficiently by preventing an excessive temperature rise of a cell-stack with precision, and avoiding an emergency stop resulting from false signals. SOLUTION: A temperature sensor 2 is placed on the cooling plate 20 of a cell-stack 1 comprising unit cells 10 laid one on another, and temperature measurement signals of the temperature sensor 2 are fed to a temperature monitoring device 3A having a comparison operation circuit 4 and a timer 5. The temperature measurement signal is compared with standard values A and B, and if it exceeds the standard value A continuously over a predetermined time set by the timer 5, e.g., 10 [s], an alarm signal is output to issue an alarm ; if the signal exceeds the standard value B continuously over a predetermined time set by the timer 5, e.g., 10[s], an emergency stop signal is output to cause the emergency stop of system operation.

4. 发明专利

JPH03203167A CELL STACK CLAMPING DEVICE FOR FUEL CELL 失效
公开(公告)号：JPH03203167A
公开(公告)日：1991-09-04
申请号：JP34034289
申请日：1989-12-28
申请人： FUJI ELECTRIC CO LTD
发明人： UJIIE TAKASHI
IPC分类号： H01M8/24
摘要： PURPOSE:To make a fuel cell cell stack compact and lightweight and to make a clamping plate compact and lightweight by installing tie rods which vertically pass through their respective manifolds. CONSTITUTION:A matrix 12 in which, for example, phosphoric acid serving as an electrolyte is impregnated is interposed between a pair of fuel electrode 11 and oxidizing electrode 13 each having a reaction gas passage, and fuel gas from one side and oxidizing agent gas from the other side are supplied to the electrodes 11, 13, and electrical energy produced by electrochemical reaction is taken out from the electrodes. When each manifold 2 is fitted to the side of each clamping plate 4 of a cell stack 7, each fitting 24 is fitted to each clamping plate 4 with a bolt 27, and the manifold 2 is press-fitted to the sealing surface of the stack 7 through a sealing material 9. Upper and lower clamping plates 4 are press-clamped with belleville springs 5 through tie rods 3 which passes vertically through the manifolds 2.

5. 发明专利

JPH01315957A FUEL CELL GENERATOR 失效
公开(公告)号：JPH01315957A
公开(公告)日：1989-12-20
申请号：JP22965188
申请日：1988-09-13
申请人： FUJI ELECTRIC CO LTD
发明人： KAMOSHITA TOMOYOSHI , OUCHI TAKASHI , UJIIE TAKASHI , HIROTA TOSHIO , OOYAMA ATSUTOMO
IPC分类号： H01M8/04 , H01M8/06
摘要： PURPOSE:To operate a fuel cell in accordance with rapid increase of load current without an auxiliary storage battery by circulating fuel exhaust gas in the cell via circulation system and providing with a fuel gas-auxiliary tank. CONSTITUTION:Fuel exhaust gas is divided into two by a fuel gas-distribution valve 5. One is lead to a reforming device 9 via a fuel exhaust gas pipe 8, while the other is circulated in a fuel cell 1 via fuel gas-circulation pipe 6. Fuel gas, which is matched with load current of x% under the state that the gas reaches steady-state with the load current of x%, is supplied to the fuel cell 1 by the reforming device 9, so that the fuel gas corresponding to (100-x)% circulates in circulation system. When the load current rapidly increases, valves 13 and 31 are quickly opened to supply auxiliary fuel gas into the fuel gas- circulation pipe 6 and the reforming device 9 from an auxiliary tank 16 respectively so that the fuel cell smoothly operates.

6. 发明专利

JPH01199640A FUEL REFORMER 失效
公开(公告)号：JPH01199640A
公开(公告)日：1989-08-11
申请号：JP2339288
申请日：1988-02-03
申请人： FUJI ELECTRIC CO LTD
发明人： UJIIE TAKASHI , KAMOSHITA TOMOYOSHI
IPC分类号： B01J8/06 , B01J8/02 , C01B3/38 , H01M8/06
摘要： PURPOSE:To uniformize the load of a reforming catalyst and to improve the heat transmission in a reformer tube by providing a throttle having a spiral passage with greater resistance to the flow of a gas to be reformed than that of the reforming catalyst bed in each reformer tube. CONSTITUTION:The fuel reformer has plural reformer tubes 1. The raw gas to be reformed is passed through the reforming catalyst bed 2a packed with a reforming catalyst 2, and reformed into a hydrogen-rich gas. The throttle 8 having a spiral passage with greater resistance to the flow of the raw gas than that of the catalyst bed 2a is provided in each reformer tube 1. As a result, the flow rate of the raw gas flowing in each reformer tube is uniformized, the raw gas is also agitated, hence the load of the catalyst is uniformized, and the heat transmission in the tube is increased. Consequently, the catalyst performance can be stabilized, and the service life of the catalyst is prolonged.

7. 发明专利

JPS6427164A FUEL BATTERY OPERATING TEMPERATURE CONTROL DEVICE 失效
公开(公告)号：JPS6427164A
公开(公告)日：1989-01-30
申请号：JP21475787
申请日：1987-08-28
申请人： FUJI ELECTRIC CO LTD
发明人： OOYAMA ATSUTOMO , HIROTA TOSHIO , KAMOSHITA TOMOYOSHI , OUCHI TAKASHI , UJIIE TAKASHI
IPC分类号： H01M8/04
摘要： PURPOSE:To maintain proper operating temp. and operate a fuel battery with high efficiency by furnishing a coolant heater using a fuel battery as power supply, wherein the battery is installed in the cooling system, and a control part for operating the heater in the low-load operating range of battery. CONSTITUTION:In the high-load operating range of the battery body 1, the degree of opening of a damper 8 is adjusted on the basis of output from a temp. sensor 15 so as to maintain proper operating temp. When a drop of battery load sinks the temp. of the body 1 and the sensor 15 senses that the temp. is below the set level, a damper 6 is shut upon command from a control part 14, to shut off the external air supply to the cooling system 5. Now fuel battery operates a coolant heater 13, and the heater output is controlled on the basis of difference from the set temp. value and the rate of temp. change. By heater heating, on the other hand, temp. rise of the cooling air and the amount of heat emission by the battery itself apply in synergetic effect, and the body 1 is prevented from excessive temp. drop even in the low-load operating range of the battery to ensure maintenance of proper temp., which allows the battery to be operated with high output characteristic. When a specified temp. is exceeded, the heater 13 is stopped and damper is opened, and transfer is made to operating temp. adjustment in the cooling system 5.

8. 发明专利

JPS62139274A AIR COOLING TYPE FUEL CELL STACK 失效
公开(公告)号：JPS62139274A
公开(公告)日：1987-06-22
申请号：JP27985385
申请日：1985-12-12
申请人： FUJI ELECTRIC CO LTD
发明人： KAMOSHITA TOMOYOSHI , HIROTA TOSHIO , OUCHI TAKASHI , UJIIE TAKASHI
IPC分类号： H01M8/02 , H01M8/04 , H01M8/24
摘要： PURPOSE:To obtain an air cooling type fuel cell stack in which scatter of electrolyte is decreased, water produced is efficiently recovered, and maintenance is easy by mounting unit cells, a cell stack, inlet manifolds, and outlet manifolds. CONSTITUTION:Fuel gas inlet and outlet manifolds 6A, 6B and air inlet and outlet manifolds 51, 52 are mounted on four sides of a cell stack 20 comprising a plurality of unit cells. A common passage 51A for reaction air 80A and cooling air 80B is formed in the inlet manifold 51. A reaction air passage 52A partitioned with a partition 52C and a cooling air passage 52B is formed in the outlet manifoled 52. The cooling air 80B supplied from an inlet 11A of a cooling air chamber 11 is blocked so as not to enter the reaction air passage 52A by a partition 13 and supplied to the cooling air passage 52B. A reaction gas chamber formed in the back of the cooling air chamber 11 is connected to the reaction air passage 52A.

9. 发明专利

JPH09213357A TEMPERATURE CONTROL METHOD AND DEVICE FOR FUEL CELL 失效
公开(公告)号：JPH09213357A
公开(公告)日：1997-08-15
申请号：JP1921596
申请日：1996-02-06
申请人： FUJI ELECTRIC CO LTD
发明人： UJIIE TAKASHI
IPC分类号： H01M8/04
摘要： PROBLEM TO BE SOLVED: To provide a temperature control method stably controlling a temperature of a cell layered product even in the case of large changing of a load of a fuel cell. SOLUTION: In providing of a cooling system cooling a cell layered product 1 by supplying cooling water from a cooling water supply pipe 11 guided from a liquid layer part of a steam separator 5 to a cooling pipe 4 buried in a cooling plate of the cell layered product 1 laminating a cell 2, a temperature sensor is set up in a cooling water supply pipe 11, a temperature of cooling water is measured by a temperature gage 7A, from a control circuit 10A receiving this detection signal, a control signal is fed to a pressure regulating device comprising a pressure gage 8 and a pressure regulating valve 9, a pressure of the steam separator 5 is adjusted, a temperature of cooling water is controlled, so as to hold a temperature of the cell layered product 1 in a prescribed temperature range in accodance with changing of a load.

10. 发明专利

JPH07211338A FUEL CELL POWER GENERATING SYSTEM AND ITS STARTING METHOD 失效
公开(公告)号：JPH07211338A
公开(公告)日：1995-08-11
申请号：JP430194
申请日：1994-01-20
申请人： FUJI ELECTRIC CO LTD
发明人： UJIIE TAKASHI , ITO MAKOTO
IPC分类号： H01M8/04 , H01M8/24 , H02H7/06
摘要： PURPOSE:To easily provide a large capacity system and enhance efficiency. CONSTITUTION:A fuel cell power generating system is constituted by connecting in parallel a starting load 4A and a switch 5A connected in series, and a starting load 4B and a switch 5B connected in series, and further connecting switches 6A, 6B in series to a plurality of fuel cells 1A, 1B which are connected in parallel, then connected to a load 2. The starting loads 4A, 4B are set so that when the load 4A is connected to the fuel cell 1A and the load 4B to the fuel cell 1B, each output voltage becomes lower than the lowest voltage of no-load open voltage of each fuel cell. After the switches 5A, 5B were closed, the switches 6A, 6B are closed, then the switches 5A, 5B are opened for starting.

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