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US 2017/0248238 A1Published application
Valve apparatus
AssigneeHonda Motor Co., Ltd.
InventorsKoji Hakoda, Tomoyoshi Koyama, Hirotaka Otaki, Tomohiko Hatakeda, Satoshi Inoue
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Abstract
In a valve apparatus, an annular contact portion made of elastic material is provided on a valve portion of a valve plug. A plurality of annular grooves are formed on a proximal end surface of a valve seat member which abuts against the contact portion. The annular grooves are formed around a communication hole through which fluid flows. The annular grooves have different diameters, and are concentric with one another.
Claims4
A valve apparatus comprising:
- a body including a flow channel as a passage of fluid;
- a valve seat surface facing the flow channel;
- a valve plug configured to be seated on the valve seat surface and configured to switch a communication state of the flow channel;
- and
- a drive part configured to move the valve plug in an axial direction,
- wherein a plurality of annular grooves are formed on at least one of the valve plug and the valve seat surface which face each other, and the annular grooves have different diameters, and are concentric with one another.
3 more elements
Dependencies are inferred from the claim text.