Several main classification methods are introduced. 1. Classification according to impeller class (1) There is only one impeller on the pump shaft of single-stage heat conduction oil pump. Because the fluid only has one chance to increase

Gear oil pump according to the structure of the pump shell is divided into two pieces and three pieces. Two chip due to the processing and the axis of the more difficult, so use few, according to the structure of the gear, a set of teeth a