| 摘要 |
This invention provides a fuel cell system preventing from a first valve such as a purge valve exhausting gas outside. The fuel cell system includes a fuel cell stack, an anode off-gas channel, a purge valve and a scavenging gas exhaust valve connected to the anode off-gas channel and exhausting gas inside the anode off-gas channel outside, a drain valve connected to the anode off-gas channel arranged in an upstream side of a connecting point of the purge valve and the scavenging gas exhaust valve and exhausting the moisture exhausted from the anode channel 12 to the anode off-gas channel, and ECU. The control unit is designed to open only the drain valve in a closed condition of the purge valve and the scavenging gas exhaust valve, after the anode off-gas channel is filled with gas in a closed condition of the purge valve, the scavenging gas exhaust valve, and the drain valve during the stop of power generation of the fuel cell stack.
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