| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fuel cell system capable of preventing attachment of condensed water to a hydrogen gas concentration sensor. <P>SOLUTION: The fuel cell system is equipped with a dilution device 140 which mixes and dilutes cathode offgas and anode offgas exhausted from a fuel cell; exhaust gas piping 214 through which exhaust gas from the dilution device 140 flows; and the hydrogen gas concentration sensor 204 installed in the exhaust gas piping 214 and detecting the concentration of hydrogen gas in the exhaust gas. A silencer 150 having a passage cross section larger than that of the exhaust gas piping 214 is installed between the dilution device 140 and the hydrogen gas concentration sensor 204. <P>COPYRIGHT: (C)2009,JPO&INPIT |
