Toyota Jidosha Kabushiki Kaisha

Aisin Seiki Kabushiki Kaisha

Kiyoshi Naiki

Takashi Tsukiyama

Toshihiro Kawai

Takanori Kawazu

Takeshi Murakami

Koichi Maruyama

Fumihiro Shinkai

An internal combustion engine includes: an exhaust heat collector, in which exhaust gas exchanges heat with engine coolant, that heats the engine coolant; an EGR mechanism that recirculates a part of the exhaust gas to an intake passage through an EGR passage that branches from an exhaust passage; and an EGR cooler that cools the exhaust gas flowing through the EGR passage through heat exchange with the engine coolant supplied from the exhaust heat collector.

Internal combustion engine

A gas introducing structure of an intake path includes a gas introducing path introducing a gas into an intake airflow in the intake path of an internal combustion engine, wherein an inner peripheral surface of the gas introducing path is made of a bottom surface appearing as a straight line at a lower side of a perpendicular cross section of the inner peripheral surface and a curved wall surface appearing as a convex curved line, connecting with each end of the straight line at an angle, at an upper side of the perpendicular cross section of the inner peripheral surface.

Gas introducing structure of intake path

Growing community of inventors

Obu, Japan

Kiyoshi Naiki