Patent ID: 8776669
Filing Date: 2014-07-15
Classification: F04B,F16C,Y10T

Abstract:
1. A reciprocating compressor comprising: a crankshaft coupled to a rotor of a motor unit and configured to transfer a rotational force; a connecting rod coupled to the crankshaft and configured to convert a rotational force of the crankshaft into a linear motion of the piston; and a sleeve interposed between the crankshaft and connecting rod and configured to serve as a bearing, wherein the connecting rod is provided with a connecting portion formed at one side thereof in an annular shape in which the sleeve is inserted, and the sleeve has an outer diameter smaller than an inner diameter of the connecting portion of the connecting rod at a room temperature, wherein the sleeve is provided with a shaft-directional supporting element configured to support the sleeve with respect to the connecting portion of the connecting rod in the shaft direction, and wherein the shaft-directional supporting element is a supporting portion integrally formed with the sleeve, the supporting portion having an outer diameter larger than the inner diameter of the connecting portion of the connecting rod.