| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel cell exhaust and drain valve capable of suppressing leakage.SOLUTION: A fuel cell exhaust and drain valve comprises: a first gas-liquid circulation section which is provided in a valve casing and in which a primary flow passage is formed such that the primary flow passage communicates with a fuel gas exhaust port and fuel gas and/or generated water discharged from the fuel gas exhaust port circulates in the primary flow passage; a second gas-liquid circulation section which is provided in the valve casing, which is formed around the first gas-liquid circulation section, and in which a secondary flow passage communicating with a dilution device side is formed to surround the first gas-liquid circulation section; a first fitting section which is provided in the first gas-liquid circulation section and which is provided with a first seal member that seals a gap between the first gas-liquid circulation section and an attachment member to which the exhaust and drain valve is attached; a second fitting section which is provided in the second gas-liquid circulation section and which is provided with a second seal member that seals a gap between the second gas-liquid circulation section and the attachment member; and a valve seat which is interposed between the primary flow passage and the secondary flow passage and which is formed into an annular shape.SELECTED DRAWING: Figure 2 |
