| 摘要 |
A fuel cell system is provided with a plurality of cell units, a feeding channel, a bypass channel and a control unit. The cell units generate power by feeding hydrogen-containing gas an oxygen-containing gas separated from each other and then having them flow and join with each other. The feeding channel has an ejector arranged therein for refluxing exhausted hydrogen-containing gas exhausted from the cell units back to the cell units. The bypass channel has the hydrogen-containing gas flowing to the cell units bypass the ejector. The control unit includes a gas feeding pressure varying section that is programmed to make the hydrogen-containing gas flow in the bypass channel, and, at the same time, vary the pressure of the hydrogen-containing gas flowing in the feeding channel upon determining a flow rate of the hydrogen-containing gas flowing in the feeding channel is over a prescribed level. |
