Screw compressor

Abstract

The present application provides a screw compressor, including: a housing, a pair of rotors, a pressure release channel, and a regulating device. The housing has a rotor cavity, the pair of rotors are located in the rotor cavity, and a compression cavity can be formed between teeth of the pair of rotors and the housing. Each of the pair of rotors has a gas suction end and an exhaust end, where the exhaust end has an exhaust end surface extending in a radial direction. The pressure release channel has a pressure release channel inlet and a pressure release channel outlet, where the pressure release channel inlet communicates with the compression cavity, and the pressure release channel outlet communicates with an exhaust side of the compressor. The regulating device is movably installed on the housing and is configured to controllably open or close the pressure release channel inlet so as to achieve communication or non-communication between the compression cavity and the pressure release channel. According to the compressor in the present application, gas pressure in the compression cavity can be regulated.

Dependencies are inferred from the claim text.