Guangdong Meizhi Compressor Co., Ltd.

Guoyong Yang

Weimin Xiang

Hong Guo

Cheng Zhang

Jijiang Yu

Yangbo Yu

Yongjun Fu

Jingtao Yang

Kaicheng Yang

Fayun Li

Feng Wang

Compressor for home appliance, vehicle and aircraft

A rotary compressor () and a refrigeration cycle device () having same are provided. The rotary compressor comprises: a liquid reservoir (), a first direction control assembly (), and a compression mechanism. The compression mechanism comprises two cylinders and two gas injection holes, in which a sliding vane of one cylinder is pressed against an outer circumferential wall of a piston in the cylinder and a gas injection hole is used for injecting a refrigerant to the cylinder, while the sliding vane of the other cylinder is optionally in contact with or separate from the piston in the cylinder, the other gas injection hole is used for unidirectionally injecting the refrigerant into the cylinder; a first valve port () of the first direction control assembly () is connected to the gas suction port of the other cylinder, a second valve port () thereof is connected to liquid reservoir (), a third valve port () thereof is in communication with the exhaust hole, and the second valve port () and the third port () are optionally in communication with the first valve port ().

Rotary compressor and refrigeration cycle device having same

A refrigerant filling rotary compressor includes a shell, a compressing mechanism, an injection tube and an injection valve assembly. The compressing mechanism includes a cylinder, a main bearing, an auxiliary bearing, a crank shaft, a piston and a sliding vane. An inner wall of the cylinder chamber of the cylinder is formed with a filling mouth, and the cylinder is provided with a filling channel with a filling hole. The injection valve assembly is in a closed state when a pressure inside the cylinder chamber is higher than that in the filling hole so as to separate the filling hole from the filling mouth, and the injection valve assembly is in an open state when the pressure inside the cylinder chamber is lower than that in the filling hole so as to communicate the filling hole with the filling mouth, in which when the injection valve assembly is in the closed state, a space between the injection valve assembly and the filling mouth where a compressed gas exists is termed a clearance volume formed by the injection valve assembly, and a ratio between the clearance volume formed by the injection valve assembly and a reserve volume of the cylinder ranges from 0.3% to 1.5%.

Refrigerant filling rotary compressor

Growing community of inventors

Foshan, China

Guoyong Yang