| 摘要 |
A fuel cell has a fuel gas passage disposed therein, a circulation passage connecting a fuel gas pump in series to the fuel gas passage, and an intermediate fuel gas supply mechanism. The intermediate fuel gas supply mechanism supplies a fuel gas, which is lower in humidity than a fuel gas flowing upstream of a intermediate fuel gas supply port in the fuel gas passage, to the intermediate fuel gas supply port, for thereby preventing water from being condensed in the fuel gas passage. |
