Patent ID: 7144224

Claim:
A variable capacity rotary compressor, comprising: a housing to define first and second compression chambers having different capacities therein; a rotating shaft to be placed in the first and second compression chambers; first and second eccentric cams mounted to the rotating shaft and placed in the first and second compression chambers, respectively; first and second eccentric bushes rotatably fitted over the first and second eccentric cams, respectively; a locking unit to make one of the first and second eccentric bushes be eccentric from the rotating shaft while making a remaining one of the first and second eccentric bushes be released from eccentricity from the rotating shaft, according to a rotating direction of the rotating shaft, the first and second eccentric bushes being eccentric in opposite directions; and a restraining unit outwardly projected from the rotating shaft by a centrifugal force when the rotating shaft is rotated, to restrain the first and second eccentric bushes.