Nissan Motor Company Limited

Aichi Machine Industry Co., Ltd.

Renault S.a.s. Societe Par Actions Simplifiee

Michihiro Yamane

Munehiro Sagata

Norio Ito

Shuichi Nishimura

Takashi Ishizuka

Takashi Satake

Akinobu Yoshibe

An apparatus for circulating a blowby gas to engine cylinders in an internal combustion engine, including a cylinder head cover including a first wall defining a first passage, and a first flange outwardly extending from the first wall, and a cylinder head including a second wall and a second flange cooperating with the first flange to form an abutting surface therebetween on which a second passage is arranged. The second passage is connected with the first passage and extending in a direction of a row of the engine cylinders. The second wall defines a plurality of third passages each having one end that is open to the second flange and communicated with the second passage and an opposite end open to an intake port of each of the engine cylinders.

Blowby gas circulating apparatus for an internal combustion engine

An internal combustion engine has an intake valve and an exhaust valve. When the engine operates at low speed with low and medium load, the intake valve is operated to close at a relatively advanced timing for increased volumetric effeciency and increased real compression ratio. When the engine operates at low speeds with high load, the exhaust valve is operated to close at a relatively retarded timing with the intake valve being operated to close at the relatively advanced timing, whereby the volumetric efficiency is subject to a drop to prevent occurrence of knocking.

Compression ratio control for internal combustion engine

Growing community of inventors

Kanagawa, Japan

Michihiro Yamane