Rotary compressor and its compression mechanism

Abstract

The invention discloses a rotary compressor and a compression mechanism thereof. The compression mechanism of the rotary compressor includes: a cylinder with a sliding vane groove, and an air inlet and an exhaust port are respectively arranged on both sides of the sliding vane groove; an upper bearing and a lower bearing, and the upper bearing is arranged on The upper end of the cylinder and the lower bearing are arranged at the lower end of the cylinder, and a compression chamber is defined between the upper bearing, the cylinder and the lower bearing; the sliding vane, the sliding vane is slidably arranged in the sliding vane slot, wherein the sliding vane faces toward the exhaust port There is a groove on one side, and the groove can communicate with or be cut off from the compression chamber during the sliding of the sliding vane in the sliding vane groove, wherein at least one of the upper bearing and the lower bearing is provided with an injection channel communicating with the groove; And the roller, the roller can be eccentrically rotatably arranged in the compression cavity, and the free end of the sliding piece is stopped against the outer wall of the roller. The compression mechanism of the rotary compressor according to the embodiment of the present invention has simple structure, high degree of automation and high reliability.

Description

technical field [0001] The invention relates to the field of compressors, in particular to a compression mechanism of a rotary compressor and a rotary compressor with the compression mechanism. Background technique [0002] It is pointed out in the related art that when the rotary compressor is used for low-temperature heating or high- and low-temperature cooling, due to the poor heat exchange effect of the two devices, the compressor has defects such as less air return and difficulty in returning air, which leads to the loss of air intake of the compressor. The sharp drop, the compression efficiency is low, which seriously affects the cooling or heating capacity of the system. The usual solution is to use the flash evaporator to separate the medium-pressure gas from the medium-pressure liquid at the outlet of the first heat exchanger, and return it to the compressor to increase the enthalpy and replenish the gas to increase the compression capacity of the compressor. Among...

AI Technical Summary

Problems solved by technology

[0002] It is pointed out in the related art that when the rotary compressor is used for low-temperature heating or high- and low-temperature cooling, due to the poor heat exchange effect of the two devices, the compressor has defects such as less air return and difficulty in returning air, which leads to the loss of air intake of the compressor. Sharp reduction, low compression efficiency, seriously affecting the cooling or heating capacity of the system

Images