| 摘要 |
<P>PROBLEM TO BE SOLVED: To make scavenging in a fuel gas supply manifold completed in a short time, and suppress the generation of an electric discharge due to carbon corrosion. <P>SOLUTION: A downstream end of the fuel gas supply manifold 4 in which the fuel gas (hydrogen) is distributed and supplied to fuel gas channels 5 of respective cells, and an upstream end of a bypass discharge flow passage 10 which is installed in parallel with a fuel gas discharge manifold 7 and in which the downstream end is connected to a fuel gas outlet 6 are connected by a bypass pipe 9. In the bypass pipe 9, an electromagnetic valve 11 is interposed, the electromagnetic valve 11 is opened during only a prescribed time after the fuel gas is started to be supplied, and inside of the fuel gas supply manifold 4 is scavenged by the fuel gas. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
