| 摘要 |
<P>PROBLEM TO BE SOLVED: To supply accurately the respectively requested flow-rates of an oxidizer gas and a dilution gas to an oxidizer electrode. <P>SOLUTION: A fuel cell system comprises a fuel cell line which includes an FC supply passage L2 that is branched from a main supply passage L1 having a compressor 10 installed and supplies air to an oxidizer electrode of a fuel cell stack 1a and its downstream side, and a dilution line which includes a case supply passage L3 that is branched from the main supply passage L1 and supplies air to a stack case 1b and its downstream side. A second flow-rate sensor 31 for detecting the flow-rate of the air in the passage is installed in the case supply passage L3. A control part 30 controls a two-way valve 14 in the case supply passage L3 based on the detection result of the second flow-rate sensor 31. In this case, the dilution line is established so that its pressure loss may be smaller than the pressure loss of the fuel cell line. <P>COPYRIGHT: (C)2009,JPO&INPIT |
