Mazda Motor Corporation

Hisayuki Yamane

Ryotaro Nishida

Hidesaku Ebesu

Ken Yoshida

Taketoshi Yamauchi

Shuhei Tsujita

Masafumi Nakano

Masanori Hashimoto

Masaaki Sato

Mitsunori Wasada

Kouichi Shimizu

Tatsuya Koga

Jiro Kato

Sakumi Haseto

Tsukasa Hoshino

Mitsutaka Yamaya

Eiji Takano

Hirofumi Shinohara

Kunihiro Nishi

Yoshihiro Hamazume

The present disclosure provides sufficient support rigidity of a supercharger and an intercooler, while reducing an increase in the overall height of an engine. The supercharger extends along a cylinder bank at a side of a surge tank, and is fixed to an intake manifold. The intercooler is located below the supercharger. A case of the intercooler is connected to a discharge port of the supercharger and an intake air introduction pipe of the intake manifold.

Engine with supercharger

The present disclosure aims to improve circulation of intake air and distribution of bypass intake air to cylinders, while reducing an increase in the overall height of an engine. A supercharger extends along a cylinder bank at a side of a surge tank extending along the cylinder bank. A bypass pipe branching off from an upstream intake pipe configured to introduce the intake air into the supercharger extends along the cylinder bank above the supercharger. A downstream side intake pipe configured to guide the intake air from the supercharger to the surge tank extends downward from the supercharger. The downstream intake pipe is, in a U-shape as viewed along the cylinder bank, connected to the surge tank.

Engine with supercharger arrangement

An oil pump unit comprises a pump shaft and a pump housing which stores the pump shaft. A balancer unit comprises a pair of balancer shafts and a balancer housing which stores the balancer shafts. The pump housing and the balancer housing are coupled to each other at least in the vicinity of a periphery of the pump shaft, and at a coupling portion in the vicinity of the periphery of a power transmission shaft is formed a connection groove which connects the inside to the inside of the coupling portion. Accordingly, it can be retrained that the reliability of journal portions of the balancer shaft of the balancer unit and the like is deteriorated by dusts and the like contained in high-pressure oil from the oil pump unit in a balancer device of an engine.

Balancer device of engine

Growing community of inventors

Aki-gun, Japan

Hisayuki Yamane