Patent ID: 9017048
Filing Date: 2015-04-28
Classification: F01C,F04C

Abstract:
1. A variable capacity type rotary compressor, comprising: a casing having a suction pipe and a discharge pipe; at least one cylinder installed in an inner space of the casing; at least one rolling piston configured to compress a refrigerant by being orbited in a compression space of the at least one cylinder; at least one vane configured to partition the compression space of the at least one cylinder into a suction chamber and a discharge chamber in cooperation with the at least one rolling piston; a chamber isolated within the inner space of the casing and filled with a refrigerant at a suction pressure or a discharge pressure formed at a rear side of the at least one vane; a mode switching device configured to apply a variable pressure to the chamber; a controller configured to control the mode switching device to switch an operation mode to a power mode by supplying the discharge pressure to the chamber when a differential pressure reaches a predetermined reference pressure, and to a saving mode by supplying the suction pressure to the chamber when the differential pressure does not reach the predetermined reference pressure; and a vane restricting device configured to restrict or release the at least one vane pressed by the mode switching device, wherein the vane restricting device is configured to restrict the at least one vane using a pressure in the inner space of the casing, wherein the at least one cylinder comprises: