| 摘要 |
Disclosed are a forward check valve and fuel-cell system wherein a diaphragm is prevented from sticking to the bottom surface of a valve chamber, even in a low-profile structure. Inside a valve housing (130), an annular first protruding part (144), against which a diaphragm (120) abuts when a valve part (150) is opened, and first channels (145), which let methanol flow from inside the protruding part (144) to outside, are formed around an inlet (143) in the bottom surface (141) of the valve chamber (140). Thus in the disclosed forward check valve (101), when the valve part (150) is opened, the rubber diaphragm (120) contacts the first protruding part (144), not the bottom surface (141) of the valve chamber (140). Also, when the diaphragm (120) is in contact with the first protruding part (144), methanol flows outside the first protruding part (144) from inside said first protruding part (144) via the first channels (145). |
