Patent ID: 6626651
Filing Date: 2003-09-30
Classification: F04B

Abstract:
A linear compressor comprises a cylinder supported in a hermetic vessel by a support mechanism, a piston which is supported concentrically with said cylinder such that said piston can move in an axial direction of said cylinder, and which forms a compression chamber between said cylinder and said piston, a spring mechanism for applying an axial force to said piston, and a linear motor portion having a moving member connected to said piston through a holding member and a stator fixed to said cylinder to form a magnetic path between the stator and said moving member, said linear motor portion generating thrust for moving said piston in its axial direction, wherein said linear compressor further comprises aligning means for aligning an axial length center of said stator and an axial length center of said moving member with each other at the time of operation of said linear compressor.