| 摘要 |
<P>PROBLEM TO BE SOLVED: To easily and reliably cope with fluctuation of a product water volume in accordance with change of an operation state, and maintain pH in drainage water at a proper value in a simple and compact structure. <P>SOLUTION: The fuel cell system 10 includes a fuel cell stack 12, an exhaust flow channel 74 flowing exhaust gas exhausted from the fuel cell stack 12, and an ejector 76 arranged at the exhaust flow channel 74 for circulating exhaust flow from the fuel cell stack 12 as a driving flow, and a neutralizing agent supply mechanism 80 communicated with a suction port 78 of the ejector 76 for letting the ejector 76 suction a neutralizing agent by the exhaust flow. The neutralizing agent supply mechanism 80 includes a neutralizing agent tank 82 storing the neutralizing agent and a variable throttle valve 84 capable of adjusting a volume of the neutralizing agent suctioned by the ejector 76 from the neutralizing tank 82. <P>COPYRIGHT: (C)2010,JPO&INPIT |
