| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fuel cell system capable of suitably supplying a fuel gas to respective fuel gas flow passages of a unit cell. <P>SOLUTION: The fuel cell system comprises a fuel cell stack 10 constituted of the unit cells 20 having an anode flow passages 26 laminated in a plurality of numbers, and having, in its inside and its laminating direction, an interior hydrogen supply manifold 11 to distribute and supply hydrogen to the anode flow passages 26 of the respective unit cells 20 and an interior hydrogen discharge manifold 12 to collect and discharge hydrogen from the anode flow passages 26 of the respective unit cells 20, wherein the interior hydrogen supply manifold 11 opens to the outside at a first hydrogen introducing port 11a of its one end side and a second hydrogen introducing port 11b of its other end side; a first fuel gas supply flow passage to connect a hydrogen tank 31 and the first hydrogen introducing port 11a; a second fuel gas supply flow passage which is branched from the first fuel gas supply flow passage and connected to the second hydrogen introducing port 11b; and an assist introducing valve 34 and a variable orifice 35 to control a flow rate of a gas to flow into the second fuel gas supply flow passage. <P>COPYRIGHT: (C)2009,JPO&INPIT |
