Patent ID: 9638187
Date: 2017-05-02
CPC Classifications: B63H,F01C,F04C

Claim:
1. A pump device comprising: a shaft; a first gear pair comprising a first driving gear which is disposed on the shaft and is rotatable together with the shaft, and a first driven gear driven by the first driving gear to feed an operating fluid; a second gear pair comprising a second driving gear which is disposed on the shaft coaxially with the first driving gear and is rotatable together with the shaft, and a second driven gear driven by the second driving gear and arranged coaxially with the first driven gear to feed an operating fluid; a support pin penetrating the first driven gear and the second driven gear and rotatably supporting the first driven gear and the second driven gear; and a casing covering the first gear pair and the second gear pair, wherein the support pin is fixed to the casing in such a manner that a movement of the support pin in a circumferential direction is restricted.