Connection between a piston and connecting rod of a reciprocating compressor

摘要

A reciprocating compressor includes a driving motor unit having a crank shaft and a compressor unit having a cylinder. A piston having a piston body reciprocates in the cylinder, and a plate-shaped extension piece extends from the piston body along the axial direction thereof. A connecting rod has a crank pin eye formed on one end thereof into which a crank pin of the crank shaft is inserted, and an U-shaped connector formed on the other end thereof for accommodating the extension piece. A piston pin penetrates the extension piece and the U-shaped connector and connects the piston and the connecting rod to relatively rotate.