| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a power generation shutdown method of a fuel cell system capable of stably generating necessary power quickly after startup. <P>SOLUTION: In the method of shutting down the fuel cell system 1 equipped with a fuel cell 2 of a solid polymer electrolyte film type generating power by having an anode supplied with fuel and a cathode supplied with oxidant, a primary shutoff valve 4, a pressure control valve 5 and a secondary shutoff valve 6 are provided sequentially from a side near a high-pressure hydrogen tank 3 in a hydrogen supply channel 21 supplying fuel to the anode of the fuel cell 2 from the high-pressure hydrogen tank 3. At the time of power shutdown of the fuel cell 2 by fuel supply stop to the anode and oxidant supply stop to the cathode, the fuel is re-supplied to a channel communicating with the anode by opening the secondary shutoff valve 6 at a closed condition of the primary shutoff valve 4. <P>COPYRIGHT: (C)2008,JPO&INPIT |
