Patent ID: 11885318
Assignee: ZHEJIANG UNIVERSITY
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 3:
4. The two-dimensional motor combination piston pump according to claim 3, wherein the flow distribution rotor is central-symmetric;
an outer surface of the flow distribution rotor defines eight grooves, four of the eight grooves are located on a left side of the flow distribution rotor, and the other four of the eight grooves are located on a right side of the flow distribution rotor, the four grooves on the left side of the flow distribution rotor and the four grooves on the right side of the flow distribution rotor are symmetrically distributed;
each groove occupies 45° in circumferential width, the four grooves on the same side overlap by a certain length in an axial direction;
a set of two opposite grooves on the left side of the flow distribution rotor serve as a first groove, extending outward to reach an end face, another set of two opposite grooves on the left side of the flow distribution rotor serve as second groove, extending inward;
a set of two opposite grooves located on the right side of the flow distribution rotor serve as a third groove, extending outwards to reach an end face, another set of two opposite grooves on the right side of the flow distribution rotor serve as a fourth groove, extending inward.