| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fuel cell system capable of reducing a possibility that a combustion state in a combustion part of a reformer becomes unstable. <P>SOLUTION: In the fuel cell system 10 equipped with the reformer 20 having a combustion part 23 and a reforming part 25, a fuel cell 30, a reforming gas line 51, an anode off-gas line 52, a bypass line 53, and a control device 40, the control device 40 controls each valve 61, 62 and 63 so that a reformed gas shut-off valve 61 and an anode off-gas shut-off valve 62 are closed, and a bypass shut-off valve 63 is opened at starting the initial period of the reformer 20, and when the reformed gas shut-off valve 61 and the anode off-gas shut-off valve 62 are switched to open states from closed states, the bypass shut-off valve 63 is closed after opening and closing intermittently for a plurality of times, thereby the gas sealed in the periphery of the fuel cell 30 is supplied to the combustion part 23 intermittently or mixed with the reformed gas and diluted, and the possibility that the combustion state becomes unstable is reduced. <P>COPYRIGHT: (C)2008,JPO&INPIT |
