VARIABLE DISPLACEMENT ROTARY COMPRESSOR FOR SMOOTHING THE ROTATION OF A ROLLER OF A LOW PRESSURE SIDE BY ACTING EQUALLY PRESSURE ACTING FROM A HIGH PRESSURE SIDE TO BOTH AXIAL ENDS OF THE ROLLER OF THE LOW PRESSURE SIDE

摘要

PURPOSE: A variable displacement rotary compressor is provided to smooth the rotation of an idling roller by preventing the idling roller from contacting excessively to a flange or inclining. CONSTITUTION: A variable displacement rotary compressor is composed of a housing having two compression chambers(31,32) divided by an intermediate plate and flanges(35,36) formed at both sides to close an opening unit of two compression chambers; a rotary shaft(21) penetrating two compression chambers and the intermediate plate; two eccentric units(40) disposed on the outside of the rotary shaft of each compression chamber to be an eccentric or non-eccentric state according to the rotational direction change of the rotary shaft and to compress or release a compression state and operated oppositely to each other; and two rollers(37,38) combined on the outer surfaces of two eccentric units. The inside of the end of the roller is separated from the inside of the flange to act compensating axial pressure on both ends of two rollers.