Patent ID: 6224348
Filing Date: 2001-05-01
Classification: F04B

Abstract:
A compressor comprising:a housing;a cylinder bore formed in the housing;a control pressure chamber defined in the housing;a piston housed in the cylinder bore, wherein the piston compresses gas drawn into the cylinder bore and discharges the gas from the cylinder bore;a drive shaft rotatably supported by the housing;a drive plate operably coupled to the piston to convert rotation of the drive shaft into reciprocation of the piston, wherein the drive plate is supported by the drive shaft to incline relative to the drive shaft, and is moved between a maximum inclination position and a minimum inclination position in accordance with the pressure in the control pressure chamber, wherein the inclination of the drive plate defines the stroke of the piston and the displacement of the compressor;a control valve, wherein the control valve controls the pressure in the control pressure chamber to change the inclination of the drive plate, and wherein the control valve is actuated based on an electrical signal; anda damping device for decreasing the speed of operation of the control valve.