Patent ID: 8651834

Claim:
A linear compressor, comprising: a fixed member including a cylinder for providing a refrigerant compression space; a movable member, which includes a piston for compressing refrigerant inside the cylinder and a supporter composed of a center portion being aligned with a center of the piston and a support portion extended radially of the piston and which makes a linear reciprocating movement about the fixed member; a plurality of mainsprings supported on the support portion of the supporter, for elastically supporting the piston in an axial direction; a flange on a rear side of the supporter, wherein the piston includes the flange; a connecting member, which is coupled between the piston and the supporter and which includes permanent magnets arranged in a circumferential direction; a suction muffler, which includes a connecting part fastened to the rear side of the supporter and which guides the flow of refrigerant to the piston; and a mass member, which has a rectangular shape corresponding to the center portion of the supporter, wherein the mass member is fastened to a rear side of the connecting part of the suction muffler for increasing a total mass of a linearly reciprocating member in an axial direction; and wherein the flange of the piston, the supporter, the connecting member, and the connecting part of the suction muffler each have at least two guide holes communicating with each other in an axial direction such that guide pins are inserted therein for accurate joining positioning of the components during an assembly process.