Aisin Aw Co., Ltd.

Takumi Uchida

Mikio Iwase

Minoru Todo

Naoki Okoshi

Kengo Nomura

Koji Ota

Mitsuhiro Takeda

Takahiro Torii

In a gear pump, an outer inner wall surface of a suction port which is located on a downstream side in a rotor rotation direction, that is, a first inner wall surface, is located inward of a bottom land between internal teeth of an outer rotor, and the suction port has a shallow portion extended inward from the first inner wall surface on the downstream side in the rotor rotation direction, and a deep portion that is formed so as to be continuous with the shallow portion and that is deeper than the shallow portion. Communication between an inter-tooth chamber and the suction port is cut off with the inter-tooth chamber facing only the shallow portion.

Gear pump including an inner rotor having a plurality of teeth

Growing community of inventors

Obu, Japan

Takumi Uchida