Toyota Jidosha Kabushiki Kaisha

Yoshio Kido

Norihiko Nakamura

Katsuhiko Hirose

Toshio Tanahashi

Toyokazu Baika

Masanobu Kanamaru

Masahiko Masubuchi

Takao Tate

Hiroshi Noguchi

Kichiro Kato

Toshio Ito

Michio Kawagoe

Hiroaki Nihei

A two-stroke engine having an intake valve and an exhaust valve arranged on an inner wall of the cylinder head, an intake passage connected to the cylinder via the intake valve, a fuel injection device arranged in the cylinder, for injecting fuel into the cylinder, a pressure regulator for regulating a fuel pressure supplied to the fuel injection device on the basis of a scavenging pressure in the intake passage, to thereby increase the fuel pressure in accordance with an increase of the scavenging pressure, and a control device for controlling the injection of fuel by the fuel injection device for a time ranging from a time at which the intake valve is opened to a time at which the scavenging pressure becomes equal to a pressure in the cylinder after the intake valve is closed.

Two-stroke engine

A two stroke engine equipped with a mechanically driven supercharger in the intake passage downstream of throttle valve. A bypass air passage bypassing the supercharger is provided, and a bypass air control valve is arranged in the bypass air passage. When the engine is idling, the bypass air control valve is controlled so that the level of vacuum in the intake passage between the throttle valve and the supercharger is maintained at a constant value.

Intake device of a two stroke engine with supercharger bypass passage

Growing community of inventors

Gotenba, Japan

Yoshio Kido