Abstract: A linear compressor in which an inner core is integrally mounted with a magnet to linearly reciprocate simultaneously and is also mounted on a core frame that comes into close contact with an outer circumference of a cylinder. With this configuration, the core frame is able to stably support the weight of the inner core, resulting in improved rigidity and reliability of the compressor.

Abstract: Disclosed herein is a linear compressor. In the present invention, the configuration that a sealing protrusion is protruded in a sealing part of a cylinder toward an exhale cover leads line contact with the exhale cover and the sealing protrusion of the sealing part. Even though small power is applied to the exhale cover, the exhale cover and the sealing protrusion are closely adhered to each other, thus effectively sealing the exhale cover and the cylinder. Furthermore, as power transmitted from the exhale cover to the cylinder becomes reduced, a transformation of the cylinder can be prevented, and a performance and reliability of the linear compressor can be enhanced.

Abstract: A reciprocating compressor is provided. The compressor includes a casing, a frame fixed to an inner circumferential surface of the casing, an oil storage portion formed in the frame, and an oil pocket formed at an outer circumferential surface of a piston and in communication with the oil storage portion. The piston reciprocates within a cylinder and pumps oil based on a change in volume of the oil in the oil pocket. Since an additional space to contain oil in the casing and an additional oil pumping device are not required, size of the compressor is reduced and structure is simplified. Furthermore, since oil is automatically pumped when the piston reciprocates, reliability of the compressor is enhanced.

Abstract: A reciprocating compressor is provided. The compressor includes a casing, a linear reciprocating motor provided inside the casing to generate a linear driving force, a cylinder fixed with respect to the casing, and a piston which reciprocates within the cylinder based on movement of the linear motor. An oil pump provided in the compressor includes an oil piston which reciprocates in response to the reciprocating motion of the piston to provide oil to the cylinder and piston.