REFRIGERATING COMPRESSOR Russian patent published in 2016 - IPC F04C18/00 F04C29/06 

FIELD: cooling.

SUBSTANCE: invention relates to refrigerating compressor. It includes: common housing, screw compressor with compressor housing made as part of common housing, in which there is one hole for screw rotor, with one hole for screw rotor to rotate around axis of rotation of worm rotor, with compressor suction side bearing assembly for worm rotor, with one located on housing of compressor with pressure side of bearing assembly for worm rotor and with provided on compressor housing opening of casing for compressed cooling agent. Also includes silencer assembly located in common housing. Noise suppressor assembly is located nearby housing opening and has one chamber arranged between inlet and outlet holes and expanded across flow direction relative to inlet and outlet holes. Noise suppressor assembly is made in form of through silencer, having one through hole and one expansion chamber following through hole. At that, inlet and outlet openings form corresponding through holes, and said one chamber makes said one expansion chamber. Noise suppressor unit has several through holes, following each of which there is expansion chamber. Noise suppressor unit has several expansion chambers of different volume. Common housing comprises crankcase, located on one side of compressor housing, and sealed housing located on opposite side of engine crankcase of compressor housing. Noise silencer housing is located inside sealed housing.

EFFECT: invention allows to improve refrigerating compressor in terms of damping noise.

40 cl, 18 dwg