Yamada Manufacturing Co., Ltd.

Hirotaka Eno

Kosuke Yamane

Masanori Umeno

Keisuke Kashiwa

An object of the invention is to provide an electric oil pump with greatly improved operation, increased endurance, and extended service life of an Oldham's coupling connecting a drive shaft that rotates a rotor in a pump housing and a motor output shaft in a motor housing. The electric pump comprises a pump housing having a rotor and a drive shaft for rotatably supporting the rotor, and a motor housing connected to the pump housing and having an output shaft connected to the drive shaft via an Oldham's coupling. The pump housing is provided with a coupling chamber for accommodating the Oldham's coupling, and a linking channel for transporting the leaked oil from a rotor chamber accommodating the rotor of the pump housing to the coupling chamber.

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Gunma-ken, Japan

Hirotaka Eno