| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a reaction gas supply and exhaust unit for a fuel cell capable of promptly melting ice freezed in a dilution part when an operation of the fuel cell is started. <P>SOLUTION: An air supply and exhaust unit 10 is attached to the fuel cell 1 to supply air 18 to the fuel cell 1, to receive and exhaust waste air 50 exhausted from the fuel cell 1 on the other hand. The unit is integrally constituted including a supply flow channel 21 where air 18 supplied to the fuel cell 1 flows, air exhausting channels 30, 33, 40 making waste air 50 exhausted from the fuel cell 1 flow, and a dilution chamber 17 where hydrogen off-gas exhausted from the fuel cell 1 and introduced from the outside of the unit is diluted with a part of the waste air 50 introduced from the air exhausting channel 40, and then made to flow out to the air exhausting channel 40. The air exhausting channel 40 and the dilution chamber 17 are adjacently arranged through a barrier rib 44. <P>COPYRIGHT: (C)2011,JPO&INPIT |
