Fuel cell system with pressure regulator and method for driving same
원문보기
IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0586792
(2005-01-18)
|
등록번호 |
US-8435697
(2013-05-07)
|
우선권정보 |
JP-2004-014853 (2004-01-22) |
국제출원번호 |
PCT/JP2005/000816
(2005-01-18)
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§371/§102 date |
20060720
(20060720)
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국제공개번호 |
WO2005/071784
(2005-08-04)
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발명자
/ 주소 |
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출원인 / 주소 |
- Toyota Jidosha Kabushiki Kaisha
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
1 인용 특허 :
5 |
초록
▼
A fuel system with a high power generation efficiency in which drive means can be reduced in size. The fuel cell system of the present invention is equipped with a fuel cell (FC) for generating power by circulating a fuel gas and comprises a circulation route (R) for circulating the fuel gas, drive
A fuel system with a high power generation efficiency in which drive means can be reduced in size. The fuel cell system of the present invention is equipped with a fuel cell (FC) for generating power by circulating a fuel gas and comprises a circulation route (R) for circulating the fuel gas, drive means (PM) provided in the circulation route (R) and serving to circulate the fuel gas, and pressure regulating means (RG) for regulating the pressure of the fuel gas in the circulatory route (R). A drive characteristic of the drive means (PM) is determined based on the generated power required for the fuel cell, and the pressure regulation quantity of the pressure regulating means (RG) is determined to make up the deficiency of the drive quantity based on the determined drive characteristic of the drive means (PM).
대표청구항
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1. A fuel cell system comprising: a fuel cell for generating power by circulating a fuel gas;a fuel gas supply source for supplying the fuel gas to the fuel cell;a circulation route for the fuel gas;drive means for circulating the fuel gas within the circulation route, the drive means disposed in th
1. A fuel cell system comprising: a fuel cell for generating power by circulating a fuel gas;a fuel gas supply source for supplying the fuel gas to the fuel cell;a circulation route for the fuel gas;drive means for circulating the fuel gas within the circulation route, the drive means disposed in the circulation route, the drive means forcibly circulating the fuel gas in the circulation route;pressure regulating means for regulating the pressure of the fuel gas in the circulation route to a predetermined pressure, the pressure regulating means being disposed outside of the circulation route; andcontrol means for controlling a drive quantity of the drive means and variably regulating the pressure regulating means, whereinthe control means is configured to make up for a deficiency of the fuel gas during a time period when power generation is high, according to a variation of a required gas quantity required in the fuel cell by regulating a pressure of the fuel gas in the circulation route with the pressure regulating means, while inhibiting a variation of the drive quantity in the drive means. 2. The fuel cell system according to claim 1, wherein said pressure regulating means raises the pressure of the fuel gas in said circulation route according to the increase in a required gas quantity that is required in said fuel cell. 3. The fuel cell system according to claim 1, wherein in a region in which at least the required gas quantity is higher than a standard value, the pressure regulation quantity of said pressure regulating means is varied correspondingly to a variation of said required gas quantity. 4. The fuel cell system according to claim 1, wherein in a region where said required gas quantity is higher than a standard value, a variation rate of the drive quantity of said drive means is reduced with respect to that of a region where said required gas quantity is lower than said standard value. 5. The fuel cell system according to claim 1, wherein in a region where said required gas quantity is lower than a standard value, a pressure regulation quantity of said pressure regulating means is maintained equal to or less than a constant value. 6. The fuel cell system according to claim 1, wherein said drive means is controlled based on said required gas quantity and a measured value of pressure inside said circulation route. 7. The fuel cell system according to claim 1, further comprising means for determining a drive characteristic of said drive means based on a generated power required for said fuel cell; andmeans for determining a pressure regulation quantity provided by said pressure regulating means based on said drive characteristic, which is set. 8. The fuel cell system according to claim 1, wherein in a region in which at least the required gas quantity is higher than a standard value, a drive quantity of said drive means is suppressed and a pressure regulation quantity of said pressure regulating means is varied so as to make up the deficiency of the drive quantity of said drive means. 9. The fuel cell system according to claim 1, wherein a pressure of said pressure regulating means can be regulated correspondingly to a variation of an air pressure controlled by opening and closing a pair of shut-off valves. 10. The fuel cell system according to claim 1, wherein said drive means is a pump, a compressor, or a turbine. 11. The fuel cell system according to claim 1, wherein said fuel gas supply source is a hydrogen tank filled with hydrogen. 12. The fuel cell system according to claim 1, wherein in a region in which at least the required gas quantity is higher than a standard value, a pressure regulation quantity of said pressure regulating means is varied monotonously. 13. The fuel cell system according to claim 1, wherein a pressure regulation quantity of said pressure regulating means is varied continuously and gradually from a region in which at least the required gas quantity is equal to or lower than a standard value to a region in which at least the required gas quantity is higher than said standard value. 14. The fuel cell system according to claim 1, wherein both a drive quantity of said drive means and a pressure regulation quantity of said pressure regulating means are varied in a region in which at least the required gas quantity is higher than a standard value. 15. A fuel cell system comprising: a fuel cell for generating power by circulating a fuel gas;a fuel gas supply source associated with the fuel cell to supply the fuel gas to the fuel cell;a circulation route for the fuel gas;a drive pump that circulates the fuel gas within the circulation route, the drive pump being disposed in the circulation route, the drive pump forcibly circulating the fuel gas in the circulation route;a pressure regulator that regulates the pressure of the fuel gas in the circulation route to a predetermined pressure, the pressure regulator being disposed outside of the circulation route; anda controller that controls a drive quantity of the drive pump and variably regulates the pressure regulator, andwherein the controller is configured to make up for a deficiency of the fuel gas during a time period when power generation is high, according to a variation of a required gas quantity required in the fuel cell by regulating a pressure of the fuel gas in the circulation route with the pressure regulator while inhibiting a variation of the drive quantity in the drive pump.
이 특허에 인용된 특허 (5)
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Merritt Robert D. (Vancouver CAX) Gorbell Brian N. (North Vancouver CAX), Electrochemical fuel cell system with a regulated vacuum ejector for recirculation of the fluid fuel stream.
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Iio, Masatoshi; Hiyoshi, Takanori, Fuel cell system and method.
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Driggers Vernon J. (P.O. Box 64 Scranton SC 29591), Fuel economizer system for internal combustion engines.
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Margiott Paul R. ; Kabir Zakiul ; Callaghan Vincent M., Method and apparatus for operating a fuel cell system.
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Hamada Akira,JPX ; Matsubayashi Takaaki,JPX ; Nakaoka Toru,JPX ; Miyake Yasuo,JPX ; Nakajima Toshikazu,JPX, Polymer electrolyte fuel cell and a polymer electrolyte fuel cell system which supply anode-side channels with a gas-liq.
이 특허를 인용한 특허 (1)
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Matsubara, Yasuo; Umayahara, Kenji, Fuel cell system and fuel cell system control method.
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