Axial compressor

Abstract

This invention relates to fluid compression and fluid transfer mechanisms for an axial fluid displacement apparatus. More particularly, it relates to a configuration of a bearing supported wobble plate plus intake and discharge valve mechanisms for a reciprocating piston wobble plate-type refrigerant compressor suitable for use with high pressure CO 2 as a working refrigerant.

1 . A refrigerant compressor comprising:
 a compressor housing,   a centrally mounted drive shaft,   a wobble plate mounted on the drive shaft, the wobble plate and the drive shaft rotating about a common axis of rotation,   a plurality of bearings to control axial and longitudinal movement of the wobble plate,   a plurality of cylinders disposed in a cylinder barrel,   a piston disposed in each of the cylinders, the piston defining a piston stroke as it reciprocates in the cylinder,   an intake port, and   an output valve.   
   
   
       2 . The compressor of  claim 1  and further comprising a motor hermetically sealed within the compressor housing. 
   
   
       3 . The compressor of  claim 1  further comprising a ball thrust bearing to prevent longitudinal movement of the wobble plate on the shaft, one end of which it supports. 
   
   
       4 . The compressor of  claim 1  further comprising a taper roller bearing to prevent longitudinal movement of the wobble plate on the shaft and axial movement of the wobble plate about the shaft for precision control of piston clearance volume. 
   
   
       5 . The compressor of  claim 1  further comprising a ball thrust bearing between the wobble plate and the slipper plate to eliminate piston shoe sliding friction on the slipper plate. 
   
   
       6 . The compressor of  claim 1  further comprising an intake port in each cylinder. 
   
   
       7 . The compressor of  claim 1  further comprising an output valve that covers each cylinder output port. 
   
   
       8 . The compressor of  claim 1  wherein the refrigerant is carbon dioxide.