Patent ID: 7150602

Claim:
A variable capacity rotary compressor, comprising: first and second compression chambers having different capacities; a rotating shaft passing through the first and second compression chambers; first and second eccentric cams eccentrically mounted to the rotating shaft to be placed in the first and second compression chambers, respectively; first and second eccentric bushes fitted over the first and second eccentric cams, respectively, to cause an eccentric line of the first eccentric bush to cross an eccentric line of the second eccentric bush; and a locking pin to change a position of the first or second eccentric bush to a maximum eccentric position, according to a rotating direction of the rotating shaft, wherein an angle between a maximum eccentric part of the first eccentric bush and a maximum eccentric part of the second eccentric bush is less than 180° in a rotating direction of the first or second eccentric bush which executes a compression operation, wherein the locking pin is positioned between the first and second eccentric cams, which are eccentric in a same direction, and the first and second eccentric bushes are integrated with each other by a connecting part, which connects the first and second eccentric bushes to each other, with a slot of a predetermined length being formed around the connecting part, and the locking pin coming into contact with a first end or a second end of the slot while the rotating shaft is rotated as the locking pin is inserted into the slot, to cause the first and second eccentric bushes to be rotated as the position of either of the first and second eccentric bushes is changed to the maximum eccentric position with respect to the rotating shaft.