Piston for refrigerant condensing device, comprising eye of connecting rod made of two segments, and method of assembly

摘要

The piston (3) is moved inside a cylinder of a refrigerant condensing device assembled of a crankshaft with a crank pin accommodated inside an eye (7) at the connecting rod (6) and a bearing bush (9) between the pin and the eye (7). The outer surface of the pin and the inner surface of the eye (7) are asymmetrically arranged. The outer surface of the bearing bush (9) is divided into a shallow sliding segment (15) and a higher main segment (16) facilitating a convenient positioning before the final pressing.