guide pin of variable capacity type compressor and variable capacity type compressor

摘要

PURPOSE: A guide pin of variable displacement compressor and variable displacement compressor is provided to reduce pressure in a crank chamber which is necessary for changing displacement at a high speed rotation, and suppress the occurrence of hunting, while reducing the power dissipation in a clutchless type compressor. CONSTITUTION: A variable displacement compressor comprises a housing including a cylinder bore(11a); a piston(23) accommodated in the cylinder bore; a drive shaft(16) supported by the housing; a rotating support(17) integrally fixed to the drive shaft; a cam plate(19) connected to the piston for converting rotational motion of the drive shaft to reciprocation of the piston, wherein the cam plate inclines with respect to the drive shaft, and wherein the stroke of the piston changes to vary the discharge displacement of the compressor when the inclination of the cam plate changes; and a hinge mechanism(22) positioned between the rotating support and the cam plate, characterized by that the hinge mechanism includes a guide pin(38) for transferring rotation of the rotating support to the cam plate and for permitting the inclination of the cam plate, wherein a part of the guide pin is hollow.