Honda Motor Co., Ltd.

Ryuji Maeda

Kenji Oki

Kazuo Fujihara

Chikashi Takiguchi

Ryuji Moriyama

Nobuhiro Shimada

Junji Konaka

Yuuki Muraoka

An internal combustion engine wherein the oil heat radiation amount from an oil chamber can be increased. A crank side oil chamber formed in a crankcase is divided into a first oil chamber and a second oil chamber with first openings for communicating with a transmission side oil chamber formed in a transmission case being provided in the first oil chamber while a second opening for communicating with the second oil chamber is provided in the transmission side oil chamber.

Lubricating structure for an internal combustion engine

A blowby gas ventilation system for an internal combustion engine capable of preventing oil from being diluted by efficiently and quickly exhausting a blowby gas together with a water content and the like from a crank chamber through forced ventilation of the crank chamber. The blowby gas ventilation system is intended for a four-stroke-cycle internal combustion engine. The system includes a fresh air introduction pipe, through which fresh air is sent from an outside of the internal combustion engine through a throttle portion to a crank chamber. The system also includes a blowby gas return passageway, through which the blowby gas is returned back to a downstream side of an air cleaner.

Blowby gas ventilation system for an internal combustion engine, and method of using same

Growing community of inventors

Saitama, Japan

Ryuji Maeda