Complementary double-eddy hydraulic pump

The utility model provides a capacity and rotary type vortex pump. The utility model adopts heterotrophic vortex synchronous running so as to stabilize liquid transportation, a path for eliminating pressure pulse is arranged in the heterotrophic vortex so as to really solve the problem of vibrating in high-speed rotation, and the pump can be made into a single-stage or a multi-stage pump. The vortex pump is a blank in the compressor and pump series. The utility model has the advantages of simple structure, high efficiency, defined displacement, automatic liquid charging, ideal performance characteristic, easy fabrication, low cost, etc. The pump can rotate in high and low speed, the flow direction is reverse in reversed rotation, the utility model is suitable for various working conditions and is suitable for flow capacity controlling and speed changing work in automatic production.