| 摘要 |
PROBLEM TO BE SOLVED: To reduce the number of a high temperature flow regulator valve by arragning respective cathode lines in parallel and arranging at least more than 2 anode lines in series. SOLUTION: The total flow rate of cathode gases 3 is regulated by a single high temperature flow rate regulator valve 23a and flow rates of respective cathode lines after branching are approximately uniformly distributed by three orifices 20 so as to be supplied to respective fuel cells 10. Therefore, the flow rate regulation of the cathode line 3 can be achieved only by a single valve 23A. Meanwhile, since at least two or more anode lines 2 are arranged in series, the flow rate regulation in the anode line 2 requires only single high temperature flow rate regulation valve 23b. Since anode discharge gas 4 flowing out of the fuel cell 10 located upstream is supplied to the anode line 2 of cells 10 located downstream, fuel utilization factor as a whole can be enhanced and potential difference control between the anode and cathode can be facilitated. |
