Mitsubishi Jidosha Kogyo Kabushiki Kaisha

Shigeo Yazawa

Toshio Tsuda

Taizo Shimada

Eiji Mizote

Tomomi Nakagawa

Osamu Miyata

Tomoaki Tajima

Shuichi Komuro

Variable swirl intake apparatus (24) controls a swirl of intake air in cylinder chamber (22) of an engine. Variable swirl intake apparatus (24) has intake port (25) which has entrance portion (25a) formed on cylinder head (23) of the engine and extending from the side surface of cylinder head (23) and swirl chamber (25b) which communicates with entrance portion (25a) and is formed to provide a swirl to a gas flow flowing from entrance portion (25a), intake valve (26), arranged on the lower surface of cylinder head (23), for opening/closing between swirl chamber (25b) and cylinder chamber (22) of the engine, swirl control path (28), one end of which is open to swirl chamber (25a) on the side of entrance portion (25a) with respect to a line connecting the axis along a piston sliding direction at the center of cylinder chamber (22) and the axis of the intake valve, and the other end of which is open to the side surface of cylinder head (23), and a control apparatus (29) for controlling a gas flow into swirl control path (28). According to variable swirl intake apparatus (24), a swirl of a gas taken in the engine can be controlled in accordance with an operating condition of the engine so as to reduce NO.sub.x and a fuel consumption rate.

Variable swirl intake apparatus for engine

Growing community of inventors

Tokyo, Japan

Shigeo Yazawa