MOTOR-COMPRESSOR Russian patent published in 2005 - IPC

FIELD: light mechanical engineering; hermetic compressors for domestic refrigerators, freezers and air-conditioners.

SUBSTANCE: proposed hermetic compressor includes suction and discharge units having monolithic valve plate without seats. Self-acting suction and discharge valves are engageable with suction and discharge seats. Each seat is made on self-acting elastic movable lug in form of closed thin band of cylindrical and non-cylindrical shape which are tightly closed by suction and discharge valves on one side and are tightly engageable with monolithic valve plate on other side over suction and discharge holes. Thickness of walls of closed thin band of each suction and discharge seats is no more than 0.4 and no less than 0.2 mm. Seats are connected with main body of self-acting elastic lugs by means of thin strips; thickness of thin strips is no less than thickness of suction and discharge seats. Self-acting elastic lugs are made from steel polished band by stamping (punching), for example from cold-rolled spring band Sandvic-20C. Monolithic valve plate is made from steel polished cold-rolled spring band by stamping (punching), for example from band Sandvic-20C or steel У10A. Surface of monolithic valve plate (on both sides) and surface of each self-acting elastic lug with suction and discharge seats is divided by sealing vibration insulating oil film which performs "elastic" dampening of impact reducing the noise level by 3-4 dBA.

EFFECT: facilitated procedure of manufacture of valve plate; reduction of noise power by 3-4 dBA.

6 cl, 6 dwg