Variable Capacity Swash Plate Type Compressor

Abstract

The present invention relates to a variable capacity swash plate type compressor, which has an elastic member mounted on a driving shaft located between a rotor and a swash plate for pushing a swash plate in a direction that an inclination angle is decreased to always contact and support a side of the swash plate to the rotor when the inclination angle of the swash plate is varied, thereby preventing a vibration of the swash plate and reducing noise during operation.

1 - 5 . (canceled) 
   
   
       6 . A variable capacity swash plate type compressor comprising:
 a cylinder block having a plurality of cylinder bores formed therein;   a front housing mounted in front of the cylinder block and having a crank chamber formed therein;   a rear housing mounted at the back of the cylinder block and having a suction chamber and a discharge chamber formed therein;   a driving shaft rotatably mounted between the cylinder block and the front housing;   a rotor combined to the driving shaft inside the crank chamber and rotating together with the driving shaft;   a swash plate connected to the rotor via hinge means, and mounted on the driving shaft by slidably combining a sleeve on the driving shaft to vary an inclination angle corresponding to a pressure change of the crank chamber; and   an elastic member mounted on the driving shaft located between the rotor and the swash plate, the elastic member having a spring portion for pushing the swash plate on a rotational central line of the swash plate and a reverse inclination portion for pushing the swash plate at a position spaced apart at a predetermined distance (d) from a rotational center of the swash plate in a direction that the inclination angle is decreased,   wherein a side of the swash plate is kept in a close contact with the rotor during variation of the inclination angle of the swash plate, whereby the swash plate is prevented from a vibration.   
   
   
       7 . The variable capacity swash plate type compressor according to  claim 6 , wherein the reverse inclination portion has a support portion formed integrally with an end portion of the spring portion for directly supporting a side of the swash plate. 
   
   
       8 . The variable capacity swash plate type compressor according to  claim 6 , wherein the reverse inclination portion is slidably combined to the driving shaft located between the spring portion and the swash plate in such a manner as to be separated from the spring portion, and has a support portion for directly supporting an elastic portion and a side of the swash plate. 
   
   
       9 . The variable capacity swash plate type compressor according to  claim 6 , wherein the swash plate has a stopper for supporting the reverse inclination portion. 
   
   
       10 . The variable capacity swash plate type compressor according to  claim 7 , wherein the support portion extends in a radial direction of the swash plate. 
   
   
       11 . The variable capacity swash plate type compressor according to  claim 8 , wherein the support portion extends in a radial direction of the swash plate.