Patent ID: 6584787
Filing Date: 2003-07-01
Classification: B60H,F04B,F25B

Abstract:
An apparatus for controlling a compressor of an air conditioning system, the apparatus comprising:a compressor, a rotatable input shaft connected with the compressor such that rotation of the shaft operates the compressor, a drive to the input shaft for rotating the input shaft; a clutch arrangement between the drive and the input shaft wherein the clutch arrangement may be activated to connect the drive to the input shaft for rotating the input shaft and the clutch arrangement may be deactivated for disconnecting the drive from the input shaft; a first wobble plate connected with the input shaft for being rotated by the input shaft; the first wobble plate being inclined with respect to the input shaft; a second wobble plate at the first wobble plate, the second wobble plate being non-rotatable with respect to the rotatable first wobble plate and the second wobble plate being inclined with respect to the input shaft, being correspondingly inclined to the first wobble plate, and being positioned and operable to drive pistons of piston-cylinder type compressor units as the inclined first wobble plate rotates which causes incline of the second wobble plate in correspondence with the incline of the first wobble plate; bearing elements between the rotatable first wobble plate and the non-rotatable second wobble plate enabling rotation of the first wobble plate relative to the first wobble plate; a control circuit connected with the clutch arrangement, the control circuit being operable to activate the clutch arrangement at selected time intervals for rotating the first wobble plate with respect to the second wobble plate which causes action of the bearing elements between the first and second wobble plates.