MOTOR-COMPRESSOR (VERSIONS) Russian patent published in 2004 - IPC

FIELD: compressor building.

SUBSTANCE: invention is designed for use in domestic refrigerators, freezers and air conditioners, particularly, in valve plates of sealed compressors. Housing of motor-compressor accommodates motor and compressor. It has cylinder head with suction and discharge silencers, cylinder, transfer mechanism, piston, suction and discharge device provided with self-acting suction and delivery valves with reeds overlapping surfaces of seats in valve plate. Said plate can be made solid or sectional, consisting of separate plates. Plate of any design version is made of tape type "Sandvik-20C", thickness 1.0 mm. Seats are formed around suction and discharge holes of valve plate. Each seat, both according to first and second design version of motor-compressor is, made of at least one ring projection and ring groove, 0.05-0.15 mm deep, after projection. According to second design version of motor-compressor, noise-absorbing gasket is placed between plates of valve plate. Seats of suction and discharge valves are shaped using electric erosion method. Provision of depth of seat ring grooves within 0.05-0.15 mm and noise absorbing gasket between plates (sectional valve plate version) reduce noise level of compressor, improve comfort of domestic refrigerators, and making of plate from tape type "Sandvik-20C", thickness 1.0 mm, with shaping of seats on its surface makes it possible to dispense with seat forming plates.

EFFECT: simplified design of valve plate.

6 cl, 3 dwg