Patent ID: 6354809
Filing Date: 2002-03-12
Classification: F04B

Abstract:
An compressor comprising:a housing; a drive shaft; a control surface element attached to said drive shaft, wherein said drive shaft transmits a rotational drive force to said control surface element; a pinnacle element attached to said control surface element; a swash plate, wherein as the angle of said swash plate relative to a position perpendicular to said drive shaft increases, the output of the compressor is increased; a bore formed in said swash plate, wherein said control surface element sits within said bore; a pocket formed in said swash plate, wherein said pinnacle element sits within said pocket and transmits rotational drive to said swash plate such that said swash plate rotates with said drive shaft; a fulcrum piston assembly to control the angle of said swash plate, wherein said swash plate pivots about the tip of said pinnacle element; at least one double-sided compression piston in contact with said swash plate wherein said swash plate transmits only axial loads to said at least one double-sided compression piston; at least one piston chamber formed within said housing and containing said at least one double-sided compression piston; at least one top inlet providing fluid to the top of said at least one piston chamber; at least one bottom inlet providing fluid to the bottom of said at least one piston chamber; at least one top outlet permitting fluid to exit the top of said at least one piston chamber; at least one bottom outlet permitting fluid to exit the bottom of said at least one piston chamber; wherein pinnacle element has a tip that orbits the axial center of said drive shaft at a distance equal to the distance from the axial center of said drive shaft to the axial center of said at least one double-sided compression piston.