| 摘要 |
A thin disk portion, which extends radially, and a rib provided in an outer circumference part of the disk portion are formed in a valve body. A ring-like seal projection to be pressure-contacted with the disk portion to seal a valve is formed in a case. Because the disk portion is thin, deformation occurs along an end surface of a seal projection when the valve is sealed. Even when the seal projection is deformed due to fuel swelling or the like, sealing is enabled along the entire circumference thereof. High sealability is achieved even when the resin components are pressure-contacted with each other.
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