| 摘要 |
A fuel cell system (1) includes a fuel cell (10), a hydrogen gas supply pipe system (3) for supplying a fuel gas to the fuel cell (10), and an injector (35) for adjusting the pressure of the upstream side of the hydrogen gas pipe system (3) so as to supply the hydrogen gas to the downstream side. The fuel cell system (1) further includes an internal channel communicating the upstream side and the downstream side of the injector (35) and a valve body (65) movably arranged in the internal channel for switching the channel opening area in a plurality of stages according to the movement position. Upon system stop, at least the water around the valve body (65) of the injector (35) is reduced. With this configuration, the water around the valve body as a movable portion in the injector is reduced upon system stop accordingly, even when the fuel cell system is exposed to a low temperature environment, it is possible to suppress fixation of the valve body due to freezing of water in the injector. |
