MOTOR-COMPRESSOR Russian patent published in 2000 - IPC

FIELD: light engineering industry; refrigerators and air conditioning; sealed motor-compressors for household refrigerators, freezers and air conditioners. SUBSTANCE: proposed sealed compressor with built-in motor designed for use in refrigerating machines, refrigerators, freezers and other equipment has compressor with sectional valve consisting of set of at least two separate strips. Extreme strips have seats for suction and delivery valves. At one side seats are tightly overlapped by movable leaves of valves and at other side they mate with adjacent strips of valve plate over suction and delivery holes, respectively. Each seat for suction and delivery valves of sectional valve plate is made in form of ring belt connected by bridges with main body of extreme strips. Width of strips is not less than width of belt of seat for suction and delivery valves. All strips of sectional valve plate are made of steel polished spring band by die-forging (blanking). Material for manufacture of extreme strips of valve plate is high-quality alloyed spring band, for instance, type Sandvik-20 C. Material for manufacture of middle strips of sectional valve plate is cold- rolled polished steel spring band, steel quality Y10A. Sectional design of valve plate simplifies technology of its manufacturing. EFFECT: reduced cost of manufacture, clearance volume and noise in operation. 5 cl, 5 dwg