▎ 摘　　要

NOVELTY - The assembly (100) has a cylinder seat (1) provided with a crankshaft supporting cylinder. The crankshaft supporting cylinder is sleeved with a sliding sleeve (3). A crankshaft (2) is arranged in the sliding sleeve, where hardness of the sliding sleeve is less than hardness of the crankshaft cylinder and the crankshaft. A material of the sliding sleeve is a high polymer material with an antifriction and wear-resisting property. A limiting ring groove is arranged on the crankshaft of the supporting cylinder. USE - Cylinder seat assembly for use in a piston compressor of a refrigerator (all claimed). ADVANTAGE - The sliding sleeve is provided with low hardness between the high hardness of the crankshaft, so as to effectively reduce the friction power consumption between the cylinder and the cylinder seat, thus reducing the operation power consumption of the compressor, and hence improving the performance of the piston compressor and the reliability of long-term operation of the refrigerator. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a piston compressor. 1Cylinder seat 2First crankshaft 3Sliding sleeve 4Plane rolling bearing 5Gasket assembly 100Cylinder seat assembly 200Second crankshaft 220Counterweight block 300Piston assembly 310Connecting rod 320Piston 330Pin 340Clamp spring pin 400Valve assembly 410Suction valve gasket 420Suction valve plate 430Valve plate 440Exhaust valve plate 450Limiting plate 460Gasket 500Suction silencer 600Cylinder head