Aisin Seiki Kabushiki Kaisha

Yoichi Oyamada

Yoshiyuki Kawai

Hideaki Takahashi

Kazuya Matsushima

Daigo Usa

Yoshiyuki Suzuki

Akihiro Yamashita

Kohei Hotta

An internal combustion engine includes: a cylinder having a combustion chamber formed at an upper side thereof and accommodating a piston to be reciprocally movable; a crankcase provided below the cylinder and accommodates a crankshaft; and a blow-by gas passageway recirculating blow-by gas, which leaks into the crankcase from the combustion chamber, to the combustion chamber through an intake system, in which an inner surface portion of the crankcase is provided with a blow-by gas intake part, and the blow-by gas intake part includes a protruding portion protruding in a direction in which the crankshaft extends, and the intake port opened in the protruding direction is formed at a tip end portion of the protruding portion.

Internal combustion engine

An intake system of an internal combustion engine with a supercharger includes: a negative pressure control valve which is disposed in the upstream side than an intake side supercharger in an intake passage; a first external gas introduction passage which introduces a single external gas made of blow-by gas, at a part of the intake passage which is on the upstream side of the intake side supercharger and on the downstream side of the negative pressure control valve; and a fresh air introduction passage which introduces fresh air to an internal combustion engine main body from the upstream side of the negative pressure control valve.

Intake system of internal combustion engine with supercharger

A seal structure for an engine includes a cylinder block, a cylinder head assembled via a first seal member on the cylinder block, a chain cover assembled via a second seal member on the cylinder block and the cylinder head that are assembled on each other, and a holding recess portion formed at an outer surface of a joint portion among the cylinder block, the cylinder head, and the chain cover, the holding recess portion retaining a liquid gasket and being filled therewith.

Seal structure for engine

Growing community of inventors

Kariya, Japan

Yoichi Oyamada