Honda Motor Co., Ltd.

Keihin Corporation

Koji Hakoda

Satoshi Inoue

Tomohiko Hatakeda

Tomoyoshi Koyama

Takahiro Sasaki

Takahide Kato

Hirotaka Otaki

A solenoid valve includes a body having a flow channel, and a solenoid part coupled to the body. The solenoid part includes a core housing. A movable core can be accommodated inside the core housing. A flange part of the core housing is expanded radially outwardly from a guide part which guides the movable core. Further, a thick portion is provided at a boundary portion between the flange part and the guide part on a core part side. The thick portion becomes gradually thick toward the guide part.

Solenoid valve

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.

Valve apparatus

A valve device is equipped with a body, a valve element drive mechanism, and a housing. The body has a tubular insertion section, in which a movable member of the valve element drive mechanism is inserted. A first flange is formed at an end of the insertion section that faces the housing. Furthermore, a ring is fitted externally on an outer side wall of the first flange. By projections, which are provided on an inner side wall of the ring, being embedded in an outer side wall of the insertion section, the ring is made integral with the first flange. The housing is of a bottomed tubular shape that covers the valve element drive mechanism, and an edge of an open end of the housing is crimped to the first flange through the ring.

Valve device

Growing community of inventors

Shioya-gun, Japan

Koji Hakoda