VARIABLE DISPLACEMENT SWASH-PLATE COMPRESSOR

摘要

This variable displacement swash-plate compressor comprises: a housing in which an intake chamber, a discharge chamber, a swash-plate chamber, and a cylinder bore are formed; a drive shaft rotatably supported by the housing; a swash plate that is rotatable in the swash-plate chamber by the rotation of the drive shaft; an actuator that can change the tilt angle of the swash plate; and a control mechanism that controls the actuator. A pressure adjustment chamber is formed in the housing. The actuator includes: a fixed body; a movable body that can change the tilt angle of the swash plate; and a control pressure chamber that moves the movable body. The control mechanism includes: a control passage that links the discharge chamber, the pressure adjustment chamber, and the control pressure chamber; and a control valve that, by adjusting the degree of opening of the control passage, can change the pressure in the control pressure chamber so that the movable body can be moved. A refrigerant in the discharge chamber flows into the control pressure chamber via the pressure adjustment chamber. The pressure adjustment chamber functions as a muffler that reduces the pulsation of the refrigerant.