| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fuel cell system capable of improving the detection accuracy of an abnormal condition in a gas passage such as fuel gas leakage. <P>SOLUTION: A control part 50 of this fuel cell system 10 forms a plurality of closed adjacent spaces by performing opening/closing control of a valve H200 and the like in a fuel gas circulation supply system in detection of fuel gas leakage. The control part 50 finds a change quantity of fuel gas after a lapse of predetermined time, based on pressure and temperature of the respective closed spaces, to determine whether fuel gas leakage occurs or not from the found change quantity of fuel gas. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
