A double-headed piston swash plate type compressor includes a rotary shaft, a drive force transmitting member, a tiltable swash plate, a movable body that changes the inclination angle of the swash plate, and a control pressure chamber defined by the movable body and the drive force transmitting member, which are arranged on one side with respect to the swash plate in the axial direction of the rotary shaft. The movable body includes a bottom portion, through which the rotary shaft extends, and a cylindrical portion, which extends from the bottom portion in the axial direction of the rotary shaft to surround the rotary shaft. The cylindrical portion is permitted to move in the axial direction while sliding along a part of the drive force transmitting member, so that the inclination angle of the swash plate is changed in accordance with the internal pressure of the control pressure chamber.

A variable displacement swash compressor includes a housing, a drive shaft, a swash plate, a link mechanism, a piston, a conversion mechanism, an actuator, and a control mechanism. The swash plate is rotatable together with the drive shaft in a swash plate chamber. The conversion mechanism reciprocates the piston in a cylinder bore. The actuator is operative to change the inclination angle of the swash plate. The actuator is rotatable integrally with the drive shaft. The actuator includes a partitioning body, a movable body, and a control pressure chamber. The control mechanism changes the pressure of the control pressure chamber to move the movable body. The movable body and the link mechanism are located at opposite sides of the swash plate.

A capacity control valve includes a valve housing provided a discharge port through which a discharge fluid of discharge pressure Pd passes, a suction port through which a suction fluid of suction pressure Ps passes, and a control port through which a control fluid of control pressure Pc passes, a rod configured to be driven by a solenoid, a main valve formed by a main valve seat and a main valve element and configured for opening and closing a communication between the discharge port and the control port in accordance with a movement of the rod, and a CS valve provided between the control port and the suction port and controlled by a dynamic pressure of a fluid flowing from the discharge port to the control port at an opening state of the main valve.

A variable displacement swash plate type compressor includes a crank chamber, a suction chamber, a drive shaft, a swash plate, and a bleeding passage connecting the crank chamber and the suction chamber. The bleeding passage has an axial passage and first and second radial passages in the drive shaft. The second radial passage opens on an outer peripheral surface of the drive shaft at a position that is closer to the swash plate than the first radial passage. The first radial passage is in constant communication with the crank chamber. The drive shaft has a valve member that is movable in the axial direction with the swash plate. The second radial passage is connected to the crank chamber when the swash plate is at maximum or minimum inclination angles and disconnected from the crank chamber by the valve member when the swash plate is at an intermediate inclination angle.

A capacity control valve includes: intake-side passages connecting an intake chamber that takes in fluid and a control chamber; a pressure-sensitive chamber formed midway along the intake-side passages; a liquid-refrigerant discharge valve that receives the pressure of the control chamber to open and close the intake-side passages; a pressure-sensitive body placed in the pressure-sensitive chamber, which extends to apply a biasing force to the liquid-refrigerant discharge valve in the direction of closing the valve, while contracting as the ambient pressure increases; and a solenoid that applies an electromagnetic drive force to control the main valve; wherein the pressure-sensitive body is supported on one side by the driving rod of the solenoid in a manner permitting relative motion, while connected on the other side to the liquid-refrigerant discharge valve, wherein the discharge valve structure and discharge flow passages for discharging liquid refrigerant are simplified.

A variable displacement swash compressor includes a housing, a drive shaft, a swash plate, a link mechanism, a piston, a conversion mechanism, an actuator, and a control mechanism. The swash plate is rotatable together with the drive shaft in a swash plate chamber. The conversion mechanism reciprocates the piston in a cylinder bore. The actuator changes the inclination angle of the swash plate. The actuator is rotatable integrally with the drive shaft. The actuator includes a partitioning body, a movable body, and a control pressure chamber. The control mechanism changes the pressure of the control pressure chamber to move the movable body. The movable body is adapted to pull the swash plate and increase the inclination angle when the pressure of the control pressure chamber increases.