Patent ID: 7284967
Filing Date: 2007-10-23
Classification: F04B

Abstract:
1. A reliability-improving structure of a reciprocating compressor, comprising: a container having a suction pipe in which gas is sucked; an outer stator disposed in the container, and an inner stator inserted into the outer stator so as to be movable; a reciprocating motor having a magnet fixedly combined with the inner stator so as to be movable with the inner stator; a front frame having a cylinder unit at which a through hole is formed and combined so as to support the outer stator of the reciprocating motor; a piston inserted into the through hole of the cylinder unit of the front frame, combined with the inner stator of the reciprocating motor, receiving a linear reciprocating driving force of the reciprocating motor and performing a linear reciprocating motion with the inner stator and the magnet; a rear frame unit for covering the piston and fixedly supporting the reciprocating motor; a resonance spring unit having a first spring supporter fixedly combined with a side of the inner stator or the piston so as to place at the front frame side, a second spring supporter fixedly combined with the other side of the inner stator or the piston so as to place at the rear frame unit side, a first spring arranged between the first spring supporter and the front frame, and a second spring arranged between the second spring supporter and the rear frame unit; and a valve unit for sucking and discharging gas according to the linear reciprocating motion of the piston.