VARIABLE DISPLACEMENT SWASH PLATE COMPRESSOR

摘要

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.

主权项

1. A variable displacement swash plate compressor comprising:
a housing including a suction chamber, a discharge chamber, a swash plate chamber, and a plurality of cylinder bores; a drive shaft rotationally supported by the housing; a swash plate that is rotatable together with the drive shaft in the swash plate chamber; a link mechanism arranged between the drive shaft and the swash plate, wherein the link mechanism allows for changes in an inclination angle of the swash plate relative to a direction orthogonal to a rotation axis of the drive shaft; a plurality of pistons reciprocally accommodated in the cylinder bores respectively; a conversion mechanism that reciprocates each piston in the cylinder bore with a stroke that is in accordance with the inclination angle of the swash plate when the swash plate rotates; an actuator capable of changing the inclination angle of the swash plate; and a control mechanism that controls the actuator; wherein the actuator is adapted to be rotatable integrally with the drive shaft; the actuator includes a partitioning body, which is loosely fitted to the drive shaft in the swash plate chamber, a movable body, which is coupled to the swash plate and movable relative to the partitioning body along the rotation axis, and a control pressure chamber, which is defined by the partitioning body and the movable body and moves the movable body by pressure of the control pressure chamber; the control mechanism is configured to change the pressure of the control pressure chamber to move the movable body; and the movable body and the link mechanism are located at opposite sides of the swash plate.