Patent ID: 11920594
Assignee: XI'AN JIAOTONG UNIVERSITY
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A screw compressor slide valve with gas pulsation attenuation function, which comprises a valve body (26), wherein the valve body (26) comprises multiple valve walls (21) located at a circumferential direction of the valve body (26) and used for forming seal with a compressor body (2), a male rotor (5) and a female rotor (6) of a screw compressor, respectively; on an exhaust side end surface of the valve body (26), there are two or more internal through holes (24) extending to a suction side end surface of the valve body (26), and each one of the two or more internal through holes (24) is connected with at least one of a rest of the two or more internal through holes (24);
two of the internal through holes (24) are connected with each other through a through hole connecting groove (25) which is provided at the suction side end surface of the valve body (26); the through hole connecting groove (25) and the two of the internal through holes (24) which are connected with each other through the through hole connecting groove (25) form a branched exhaust flow channel (32); a length of the branched exhaust flow channel (32) is an odd multiple of a ½ wavelength corresponding to a frequency of gas pulsation to be attenuated of the screw compressor.