US Patent 7279242 Fuel cell system
Patent 7279242 was granted and assigned to Honda on October, 2007 by the United States Patent and Trademark Office.
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The present invention is carried out to improve the starting capability of a fuel cell at low temperatures. The fuel cell system comprises a fuel cell 1 which generate electric power by supplying hydrogen gas and a oxidant gas, a hydrogen gas passage 10 for supplying hydrogen to the fuel cell 1, a hydrogen off gas circulation passage 20 for returning the hydrogen off gas to the hydrogen supply flow path 10, a hydrogen pump 7 provided at the hydrogen gas off gas circulation passage 20 for boosting the hydrogen off gas, a hydrogen off gas bypass passage 22 for returning the hydrogen off gas to the hydrogen supply flow path 10, an ejector 6 for sending hydrogen off gas in the hydrogen off gas bypass passage 20 provided in the hydrogen gas supply flow path 10 to the hydrogen supply flow path 10.
US Patent 07279242 Fuel cell system US Patent 7279242 Fuel cell system
US Patent 07279242 Fuel cell system
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