Variable displacement compressor

摘要

A variable displacement compressor that varies its displacement by altering the inclination of a swash plate (14). A drive shaft (6) is supported rotatably within a housing (2). A rotor (11) is fixed to the drive shaft (6). A swash plate (14) is mounted on the drive shaft (6) and adapted to slide and incline with respect to the shaft (6). A hinge mechanism (K) operably connects the swash plate (14) to the rotor (11). A plurality of pistons (10), each accommodated in one of the bores (9) and coupled to the swash plate (14), are reciprocated in the bore (9) by the rotation of the swash plate (14). The hinge mechanism (K) includes a guide pin (18) that projects from the swash plate (14) and includes a joint (18a). A support arm (16) projects from the rotor (11). The support arm (16) includes a receptacle (16a) which accommodates the joint (18a) and extends toward the drive shaft (6). A bushing (17) is accommodated within the receptacle (16a) and slides along a wall of the receptacle (16a). The bushing (A) is provided with an interior space to accommodate the joint (18a). The interior space allows the joint (18a) to pivot therein when the inclination of the swash plate (14) is altered. The bushing (17) is provided with a slit (17b) to permit the interior space to be temporarily enlarged when attaching the bushing (17) to the joint (18a).