公开(公告)号：US20230184233A1

公开(公告)日：2023-06-15

申请号：US17964558

申请日：2022-10-12

Applicant: ZHEJIANG UNIVERSITY OF TECHNOLOGY

Inventor： Jian RUAN ,  Chenchen ZHANG ,  Chengwei TONG ,  Bin MENG ,  Ke ZHU ,  Chuantan RUAN

IPC: F04B1/141

CPC classification number: F04B1/141

Abstract: A shaft-distributed double-acting roller piston pump includes a front end cover, a pump casing, a rear end cover and a pump core assembly. The pump core assembly includes a guide rail assembly including left and right guide rails arranged back to back. The side surfaces of the left and right guide rails away from each other are space cam curved surfaces. A flow distribution shaft is installed in the center of the guide rail assembly. A cylinder assembly is installed on both sides of the guide rail assembly including left and right cylinders, between which a piston assembly is arranged. The piston assembly forms left and right closed cavities with the left and right cylinders respectively. The piston assembly performs axial reciprocating linear motion under the constraint of the cylinder assembly and the guide rail assembly, and the volumes of the left and right closed cavities change continuously.