Patent ID: 8747081

Claim:
A linear compressor, comprising: a stationary member including a cylinder that provides a space to compress a refrigerant; a movable member that linearly reciprocates with respect to the stationary member, and that includes a piston that compresses the refrigerant inside the cylinder and a supporter piston connected to the piston and having a support portion that extends in a radial direction of the piston; a plurality of front main springs positioned so as to be symmetrical with respect to centers of the piston and the supporter piston, one end of each of which is supported by a front surface of the support portion of the supporter piston and the other end of each of which is supported by the stationary member; a rear main spring positioned at an opposite side of the piston, one end of which is supported by the supporter piston; and a suction muffler positioned inside the rear main spring that communicates with the piston and fastened to the supporter piston by bolts; and a back cover having a support portion that supports the other end of the rear main spring, wherein the support portion comprises an inward constraining support portion that prevents the other end of the rear main spring from moving in a transverse direction on the support portion of the back cover and an outward constraining support portion that prevents the other end of the rear main spring from moving in the transverse direction on the support portion of the back cover so that the other end of the rear main spring is safely seated between the inward constraining support portion and the outward constraining support portion, wherein the inward constraining support portion includes a bent part that is bent toward the cylinder to be inclined inwardly, so as to form a gap between a skirt portion of the bent part and an inner side portion of the rear main spring, which prevents the rear main spring from interfering with the skirt portion, and wherein the inwardly inclined bent part does not hit the suction muffler.