Variable displacement swash plate compressor

摘要

A variable displacement swash plate compressor is provided with a housing (1), a drive shaft (3), a swash plate (5), a link mechanism (7), a piston (9), a conversion mechanism(11a,11b), an actuator (13), and a control mechanism (15). The housing includes a suction chamber (27b), a discharge chamber (29b), a swash plate chamber (33), and a cylinder bore (23a). The actuator includes a movable body (13a) coupled to the swash plate, a fixed body (13b) fixed to the drive shaft, and a control pressure chamber (13c) defined by the movable body and the fixed body. The movable body includes a circumferential wall (131) extending in a direction along a rotational axis (O) and surrounding the fixed body, which includes a guide portion (137) projecting in an axial direction along an inner surface of the circumferential wall. The movable body contacts the guide portion to restrict inclination of the movable body relative to the drive shaft that is greater than or equal to a predetermined amount.