Patent ID: 8517702
Filing Date: 2013-08-27
Classification: F01C,F04C

Abstract:
1. A rotary compressor, comprising: at least one cylinder installed in an inner space of a hermetic container, having a compression space to compress a refrigerant, and having a chamber isolated within the inner space of the hermetic container; a plurality of bearings coupled to both upper and lower sides of the at least one cylinder that covers the compression space of the at least one cylinder and the chamber; at least one rolling piston configured to compress the refrigerant by being orbited in the compression space of the at least one cylinder; at least one vane slidably coupled to the at least one cylinder and configured to partition the compression space into a suction chamber and a discharge chamber in cooperation with the rolling piston, at least one thereof being supported by a refrigerant filled in the chamber of the at least one cylinder; and a mode switching device configured to vary an operation mode of the compressor by selectively supplying a refrigerant of suction pressure or a refrigerant of discharge pressure to the chamber of the at least one cylinder, wherein the at least one cylinder or one of the plurality of bearings includes a connection hole configured to communicate the chamber with the mode switching device, wherein a connection tube is inserted into a uniform-diameter portion of the connection hole so as to allow the connection of a connection pipe of the mode switching device, wherein a uniform-diameter portion of the connection tube has an outer diameter greater than an inner diameter of the uniform-diameter portion of the connection hole, wherein an extending portion having an inner diameter increased in an insertion direction of the connection tube is formed at an edge of an inlet end of the uniform-diameter portion of the connection hole, wherein a guiding portion is formed at an outer edge of the inserted end of the connection tube, and wherein the guiding portion has an outer diameter decreased toward an end thereof.