Patent ID: 7192259
Filing Date: 2007-03-20
Classification: F04C

Abstract:
1. A variable capacity rotary compressor comprising: upper and lower compression chambers having different capacities, the upper and lower compression chambers being partitioned from each other; a rotary shaft extending through the upper and lower compression chambers; upper and lower eccentric cams fitted on the rotary shaft while being eccentric from the rotary shaft, the upper and lower eccentric cams being disposed in the upper and lower compression chambers, respectively; upper and lower eccentric bushes disposed on outer circumferences of the upper and lower eccentric cams, respectively; a slot defined between the upper and lower eccentric bushes; a latch pin adapted to be latched to one of both ends of the slot depending upon the rotation direction of the rotary shaft, the latch pin comprising a head part; and a fixing hole formed at the rotary shaft for allowing the latch pin to be fixed to the rotary shaft therethrough, the fixing hole comprising a forcible fitting hole for allowing the head part of the latch pin to be forcibly fitted therein; wherein the head part is spaced apart from an inner circumference of the forcible fitting hole in the axial direction of the rotary shaft when the head part is forcibly fitted in the forcible fitting hole, whereby a forcible fitting force is not applied in the axial direction of the rotary shaft.