Piston lubrication system for a receiprocating compressor with a linear motor

摘要

A piston lubrication system for a reciprocating compressor with a linear motor, of the type comprising: a hermetic shell (1) defining therewithin an oil sump (2) and affixing a cylinder (4), inside which is lodged a reciprocating piston (10) defining a radial gap (5) with the cylinder (4); and a pump means (3) supplying lubricant oil from the oil sump (2) to the radial gap (5), said system comprising: at least one oil supply duct (30) having a lower end (31) coupled to the pump means (3), and an upper end (32) carried by the piston (10) and opened to the radial gap (5); and at least one oil return duct (40) carried by the piston (10) and having an inlet end (41) opened to the radial gap (5) and an opposite outlet end (42) opened to the oil sump (2).