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1. 发明专利

JPH04126363A COOLER OF FUEL CELL 失效
公开(公告)号：JPH04126363A
公开(公告)日：1992-04-27
申请号：JP24790990
申请日：1990-09-18
申请人： FUJI ELECTRIC CO LTD
发明人： OOYAMA ATSUTOMO
IPC分类号： H01M8/02
摘要： PURPOSE:To shorten a projected length of a cooling tube so as to make a small-sized cooler as well as a small-sized fuel cell by forming an inlet header and an outlet header of a metal material having about an equal thermal expansion coefficient to that of a cooling plate. CONSTITUTION:Header parts 14, 15 of a cooler are composed of a metal material whose thermal expansion coefficient is about equal to that of a cooling plate 2 consisting of a carbon material. Accordingly, thermal expansion difference between both of them in a working temperature range can be sharply reduced and bending load acting on the cooling tube also can be sharply shortened. Thereby, a projected length of a cooling tube required for relieving bending stress can be shortened so that the cooler can be small-sized.

2. 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.

3. 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.

4. 发明专利

JPH06111842A PHOSPHORIC ACID COLLECTOR FOR FUEL CELL 失效
公开(公告)号：JPH06111842A
公开(公告)日：1994-04-22
申请号：JP25512792
申请日：1992-09-25
申请人： TOKYO GAS CO LTD , OSAKA GAS CO LTD , TOHO GAS KK , FUJI ELECTRIC CO LTD
发明人： IKEDA GENICHI , IWASA NOBUHIRO , YOSHIDA HIROMASA , OOYAMA ATSUTOMO
IPC分类号： H01M8/04
摘要： PURPOSE:To provide a phosphoric acid collector for a fuel cell excellent in collecting phosphoric acid mixed in exhaust air discharged from a phosphoric acid type fuel cell. CONSTITUTION:This collector is provided with a filter 25, composed of metal reactional to phosphoric acid on the flow passage for exhausted air in a cylinder 21; and an inverted-U shaped exhausted air discharge tube 23 and guide vanes 26, surrounding the exhausted air discharge tube 23 downstream of the filter 25. Consequently, phosphoric acid in exhausted air, made to flow in from an exhausted air inlet 22, is reacted on metal, forming the filter 25, to generate a phosphoric acid compound for collecting phosphoric acid, and moreover, the separated phosphoric acid compound is rotated together with exhausted air by the guide vanes 26 to be centrifugally separated.

5. 发明专利

JPH0249358A COOLING UNIT OF FUEL CELL 失效
公开(公告)号：JPH0249358A
公开(公告)日：1990-02-19
申请号：JP20687088
申请日：1988-08-20
申请人： FUJI ELECTRIC CO LTD
发明人： OUCHI TAKASHI , YAMAMOTO OSAMU , OGA SHUNSUKE , UJIIE TAKASHI , OOYAMA ATSUTOMO , KOBAYASHI YOSHIHARU , HARADA TAKASHI , KONDO KO
IPC分类号： F28F21/02 , H01M8/02
摘要： PURPOSE:To increase heat conductivity between a cooling pipe and cooling plates by interposing a sheet comprising carbon powder and a binder or an expanded graphite sheet between divided two cooling plates and the cooling pipe, then assembling them. CONSTITUTION:An expanded graphite sheet 10 is interposed between facing surfaces of cooling plates 7, 8 and between facing surfaces of grooves 7a, 8a of the cooling plates and a cooling pipe 9 to fill up the gaps between the cooling plates 7, 8 and the gaps between grooves 7a, 8a and the cooling pipe 9. As the expanded graphite sheet 10, for example, a graphite sheet used as a gasket is used. A very thin sheet capable of compensating machining errors of the cooling plates 7, 8, their grooves 7a, 8a, and the pipe 9 is used. A sheet comprising carbon powder and a binder may be used in place of the expanded graphite sheet.

6. 发明专利

JPS63308876A START AND STOP CONTROLLING METHOD FOR FUEL CELL POWER GENERATION EQUIPMENT 失效
公开(公告)号：JPS63308876A
公开(公告)日：1988-12-16
申请号：JP14549987
申请日：1987-06-11
申请人： FUJI ELECTRIC CO LTD
发明人： OOYAMA ATSUTOMO
IPC分类号： H01M8/04 , H01M8/06
摘要： PURPOSE:To prevent excessive pressure difference between a fuel gas chamber and an oxidizer chamber and to prevent immeasurable occurrence of an accidental fire in a reformer burner by opening/closing a fuel gas inlet valve, a fuel gas outlet valve, and a by-pass valve in prescribed orders when an operation of a fuel cell is started and stopped. CONSTITUTION:When an operation of a fuel cell is started, a fuel gas outlet valve 13 is first opened and a fuel gas inlet valve 12 is opened a prescribed time later to start power generation. Behind a time required for performing complete gas substitution inside a fuel gas chamber 1d after the opening of the inlet valve 12, a by-pass valve 15 is closed to supply the whole amount of the fuel gas to the gas chamber 1d and besides to continue a reforming operation. When the operation of the fuel cell is stopped, the by-pass valve 15 is first opened to supply one part of the fuel gas to a burner 2d of a reformer. Next the inlet valve 12 is closed a prescribed time later, and in this state an inactive gas supply valve 14 is opened to substitute the inactive gas for the gas inside the gas chamber 1d. Further behind a time required for this gas substitution, the outlet valve 13 is closed to fill the gas chamber 1d with the inactive gas. Hence, rapid fluctuation in an internal pressure of the fuel gas chamber can be prevented from occurring at the time of start and stop, and also occurrence of an accidental fire by the burner is preventible.

7. 发明专利

JPS6345763A OPERATION CONTROLLER OF FUEL CELL POWER GENERATING PLANT 失效
公开(公告)号：JPS6345763A
公开(公告)日：1988-02-26
申请号：JP18904086
申请日：1986-08-12
申请人： FUJI ELECTRIC CO LTD
发明人： UJIIE TAKASHI , HIROTA TOSHIO , KAMOSHITA TOMOYOSHI , OUCHI TAKASHI , OOYAMA ATSUTOMO
IPC分类号： H01M8/04 , H01M8/06 , H01M16/00
摘要： PURPOSE:To adequately retain the reforming reaction temperature by installing a control system in which load variation is detected and the amount of reforming raw material supplied to a reformer and the amount of auxiliary fuel supplied to a burner are feedforward-controlled based on the detected value. CONSTITUTION:During operation of a power generating plant, when load is sharply increased, the output of an inverter 4 is increased, and load current Io is increased, the supply amount of reforming raw material is increased by feedforward-control before increase in the output current of a fuel cell 2. For the amount of auxiliary fuel and combustion air supplied to a burner 1a in a reformer 1, when load is sharply increased, the variation of load current is detected, and a control signal is sent to a fuel pump 8a of an auxiliary fuel supplier 8 and an air blower 9 through an output controller 19, and the supply amount of auxiliary fuel and the supply amount of combustion air multiplied by a specified excess air rate are feedforward-controlled so as to increase according to the variation rate of the load current. The supply amount of auxiliary fuel is controlled to be decreased, the excess heating value of the burner is retarded, and the temperature of reforming catalyst layer is adequately retained.

8. 发明专利

JP2000323164A REFORMING DEVICE AND OPERATION METHOD THEREOF AND FUEL CELL GENERATION DEVICE 失效
公开(公告)号：JP2000323164A
公开(公告)日：2000-11-24
申请号：JP12987199
申请日：1999-05-11
申请人： FUJI ELECTRIC CO LTD
发明人： NAKAGAWA ISAO , OOYAMA ATSUTOMO
IPC分类号： C01B3/38 , H01M8/04 , H01M8/06
摘要： PROBLEM TO BE SOLVED: To prevent performance reduction of a reforming apparatus caused by an oxidation and a sintering of a catalyst, to stabilize the performance of and to enhance a durability of a reforming device in which both partial oxidation reaction and vapor-reforming reaction are used. SOLUTION: This reforming device is provided with a reforming apparatus 5 in which both partial oxidation reaction and vapor-reforming reaction are used, a reformed material feeding system 50 for feeding a reformed material to the reforming apparatus 5, and an oxygen-feeding system 60 for feeding an oxygen or an air to the reforming device 5. The device is also provided with a reformed gas recycle piping 71 for recirculating a portion of the reformed gas discharged from the reforming apparatus 5 to a reforming catalyst layer of the reforming apparatus 5. After it is detected that the reformed material is fed to the reforming apparatus 5 by a reformed material feeding detector at the time of activation of the device, the oxygen or the air is fed from the oxygen-feeding system 60 to the reforming apparatus 5.

9. 发明专利

JPH09237634A FUEL CELL GENERATING DEVICE 失效
公开(公告)号：JPH09237634A
公开(公告)日：1997-09-09
申请号：JP4020696
申请日：1996-02-28
申请人： FUJI ELECTRIC CO LTD
发明人： OOYAMA ATSUTOMO
IPC分类号： H01M8/04
摘要： PROBLEM TO BE SOLVED: To provide a differential pressure control system which stably and quickly controls a gas pressure of each electrode even in the case of generating a sudden change of a flow amount of reaction gas. SOLUTION: A fuel pressure control pilot valve 12 has a CV value smaller than a CV value of a fuel pressure control valve 10 provided in a fuel gas discharge pipe from a fuel electrode 1a, with an opening serving as a control amount of the fuel pressure control valve 10. An air pressure control pilot valve 13 has a CV value smaller than a CV value of an air pressure control valve 11 provided in an air discharge pipe from an air electrode 1b, with an opening serving as a control amount of the air pressure control valve 11. In this device, the fuel pressure control pilot valve 12 is provided in parallel to the fuel pressure control valve 10, the air pressure adjuster valve 13 is provided in parallel to the air pressure control valve 11. A flow command of a fuel flow regulating valve 6 provided in a fuel gas supply pipe to the fuel electrode 1a and a flow command of an air flow regulating valve 7 provided in an air supply pipe to the air electrode 1b are made to serve as a control amount respectively of the fuel pressure control valve 10 and the air pressure control valve 11.

10. 发明专利

JPH06260196A HEATING DEVICE FOR FUEL CELL TYPE ELECTRIC VEHICLE 失效
公开(公告)号：JPH06260196A
公开(公告)日：1994-09-16
申请号：JP4419393
申请日：1993-03-05
申请人： FUJI ELECTRIC CO LTD
发明人： OOYAMA ATSUTOMO
IPC分类号： H01M8/00 , B60H1/08 , B60L11/18 , H01M8/04 , H01M8/06
摘要： PURPOSE:To maintain high heat efficiency and provide heating of a passenger room without increasing power generating capacity of a fuel cell. CONSTITUTION:A fuel gas supplied from a fuel treating equipment (2) using methanol as fuel and a fuel cell stack (1) for generating power by receiving the reaction air supplied from an air supplying equipment (3) are cooled by a coolant circulating system (20) having a liquid cooling type cooling plate (6), laminated on the fuel cell stack, a circulating pump (11), a startup burner (13) and a fuel vaporizing heat exchanger (12). This coolant circulating system (20) is provided with a heating heat exchanger (22) taking a coolant (9) as a heating medium. Heat produced at the fuel cell stack is recovered by the heating heat exchanger (22) and used as a heat source of a heating system (21).

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