Patent ID: 8366415
Filing Date: 2013-02-05
Classification: F04B

Abstract:
1. A linear compressor, comprising: a shell; a fixed member installed inside the shell, and including a cylinder that provides a compression space for a refrigerant introduced into the shell; a moving member including a piston that compresses the refrigerant inside the cylinder, and a supporter piston fixed to the piston that includes a supporting portion that expands in a radius direction of the piston, the moving member being linearly reciprocated with respect to the fixed member; a plurality of front main springs each having one end supported at a surface of the supporting portion of the supporter piston and the other end supported at the fixed member, and being symmetric with respect to centers of the piston and the supporter piston; a rear main spring having one end supported by the supporter piston; and a suction muffler positioned in a suction passage of the refrigerant inside the shell, wherein a suction volume having a larger sectional area in a central portion than a sectional area in both ends is defined in the suction muffler, and wherein the central portion of the suction volume is disposed inside the piston.