Aichi Machine Industry Co., Ltd.

Aisin Seiki Kabushiki Kaisha

Toyota Jidosha Kabushiki Kaisha

Hiroyuki Kurokawa

Masatoshi Hada

Yasuki Ohta

Fumiyuki Suzuki

Shoji Kobiyama

An engine unit case includes a housing configured to be assembled to a cylinder block of an engine, an oil pump provided at the housing, and a pressure adjusting mechanism for adjusting discharge pressure of the oil pump. The housing is unitarily formed with a pump chamber of the oil pump and a body of the pressure adjusting mechanism.

Engine unit case

An oil pan () is mounted to a lower surface of a cylinder block () in order to reserve an oil. An oil pump housing () is cast integrally with the inner side of the right side surface () of the oil pan (). A rib () is formed in order to connect the right side surface () and a left side surface () of the oil pan ().

Oil pan structure

Growing community of inventors

Aichi-ken, Japan

Hiroyuki Kurokawa