Patent ID: 6350106
Filing Date: 2002-02-26
Classification: F04B

Abstract:
A compressor comprising:a compressor housing including a crank chamber, a suction chamber, a discharge chamber, a valve plate, and a cylinder block; a plurality of cylinder bores positioned in said cylinder block; a plurality of pistons, each of said pistons slidably disposed within one of said cylinder bores; a drive shaft rotatably supported in said cylinder block; a swash plate disposed in said crank chamber and tiltably connected to said drive shaft; a hinge coupling mechanism mounted on said drive shaft in said crank chamber for supporting said swash plate at a tilt angle with respect to said drive shaft; a coupling mechanism coupling said swash plate to each of said pistons, so that said pistons are driven in a reciprocating motion within said cylinder bores upon rotation of said swash plate; a suction and discharge mechanism connected to said valve plate for drawing refrigerant gas from said suction chamber into said cylinder bores and discharging said gas from said cylinder bores to said discharge chamber; a communication passage for establishing fluid communication between said discharge chamber and said crank chamber; and a capacity control mechanism disposed in said communication passage for controlling said tilt angle by regulating a flow of refrigerant gas from said discharge chamber to said crank chamber; wherein said capacity control mechanism is disposed along a central axis of said compressor that corresponds to a line extension of said drive shaft, a first end portion of said capacity control mechanism projects into said discharge chamber, said first end portion has a screw mechanism for fixing said suction and discharge mechanism to said valve plate.