Unisia Jecs Corporation

Hitachi Unisia Automotive, Ltd.

Yamada Manufacturing Co., Ltd.

Hidehiko Koyashiki

Kazumitsu Kobayashi

Eiji Okamura

Seiichi Sue

A fuel injection valve includes a soundproofing cover molded out of a rubber-containing soft resin and arranged on the outer periphery of a metal casing. Collision noises and vibrations are absorbed by the soundproofing cover, achieving excellent sound insulation. Moreover, the rubber-containing soft resin is lower in cost, and can be shaped by injection molding, resulting in a reduction in manufacturing cost of the valve.

Fuel injection valve

A piston for an internal combustion engine is provided which has at a top surface thereof a cavity for causing a mixture charge drawn from an intake port into a combustion chamber so as to flow with a rotational motion about a horizontal axis to flow toward a spark plug. A combustion chamber structure for an internal combustion engine is also provided.

Growing community of inventors

Gunma, Japan

Hidehiko Koyashiki