Importance

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Abstract

A variable capacity rotary compressor including upper and lower compression chambers having different capacities, and a rotating shaft. Upper and lower eccentric cams are provided on the rotating shaft to be eccentric from the rotating shaft in a same direction. Upper and lower eccentric bushes are fitted over the upper and lower eccentric cams, respectively, to be eccentric from the rotating shaft in opposite directions, with a slot provided at a predetermined position between the upper and lower eccentric bushes. A locking pin functions to change a position of the upper or lower eccentric bush to a maximum eccentric position. A restraining unit is set along an edge of the slot to prevent the upper or lower eccentric bush from slipping. The restraining unit includes first and second elastic pieces which are respectively provided at positions adjacent to first and second ends of the slot.

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First Claim