| 摘要 |
A valve apparatus includes a sleeve which is a hollowed tubular shape, a valve member which is disposed in the sleeve, and a filter. The sleeve includes a ring-shaped groove in an outer wall of the sleeve and a port penetrating the sleeve from a bottom surface of the ring-shaped groove. The valve member opens and closes the port. The filter is wound around the bottom surface. The filter is formed by a belt-shaped member which is wound as a ring shape such that a first end part of the belt-shaped member overlaps a second end part of the belt-shaped member. The belt-shaped member includes the first end part, the second end part, and an intermediate part. The intermediate part is disposed between the first end part and the second end part. The second end part and the intermediate part include a meshed part. The first end part includes a release portion corresponding to an opening having an opening area greater than an opening area of a sieve opening of the meshed part. The sieve opening of the meshed part of the second end part is released by the release portion of the first end part. Therefore, a deterioration of a filtration efficiency of an overlapped part between the first end part and the second end part can be restricted. |
