Swash plate type variable displacement compressor

A swash plate type variable displacement compressor comprising:

• a housing in which a suction chamber, a discharge chamber, a swash plate chamber, and a cylinder bore are formed;
• a drive shaft rotationally supported by the housing;
• a swash plate rotatable in the swash plate chamber by rotation of the drive shaft;
• a link mechanism arranged between the drive shaft and the swash plate, the link mechanism allowing change of an inclination angle of the swash plate with respect to a line perpendicular to the rotation axis of the drive shaft;
• a piston reciprocally received in the cylinder bore;
• a conversion mechanism that causes the piston to reciprocate in the cylinder bore by a stroke corresponding to the inclination angle of the swash plate through rotation of the swash plate;
• an actuator capable of changing the inclination angle of the swash plate;
• and
• a control mechanism that controls the actuator, wherein
• the actuator is arranged in the swash plate chamber and rotates integrally with the drive shaft,
• the actuator includes
• a rotation body fixed to the drive shaft,
• a movable body, which is coupled to the swash plate and moves along the rotation axis of the drive shaft to be movable relative to the rotation body, and
• a control pressure chamber, which is defined by the rotation body and the movable body, wherein the control pressure chamber moves the movable body by an internal pressure of the control pressure chamber,
• the control mechanism changes the pressure in the control pressure chamber to move the movable body, and
• the movable body is arranged such that, when the pressure in the control pressure chamber is raised, the movable body moves in a direction away from the swash plate so as to pull the swash plate to increase the inclination angle of the swash plate.