| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fuel cell system capable of suppressing gas leak caused by biting ice in an exhaust valve. <P>SOLUTION: The fuel cell system 1 is equipped with a fuel cell 2 generating electric power by electrochemical reaction of reaction gasses supplied through a reaction gas supply passage 22; a circulation passage 23 returning fluid containing reaction offgas exhausted from the fuel cell 2 to the reaction gas supply passage 22; the exhaust valve 31 exhausting fluid flowing through the circulation passage 23; and a control part 7 driving and controlling the exhaust valve 31, and the control part 7 regulates fluid exhausting operation of the exhaust valve 31 when the temperature of the fuel cell 2 exceeds the freezing point of liquid contained in the fluid and the temperature of the exhaust valve 31 is below the freezing point. <P>COPYRIGHT: (C)2008,JPO&INPIT |
