Swash plate type variable displacement compressor
AssigneeKabushiki Kaisha Toyota Jidoshokki
InventorsShinya Yamamoto, Takahiro Suzuki, Kazunari Honda, Kei Nishii, Yusuke Yamazaki, Masaki Ota
Life of this patent
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Abstract
In a compressor according to the present invention, an actuator is arranged in a swash plate chamber in a manner rotatable integrally with a drive shaft. The actuator includes a rotation body, a movable body, and a control pressure chamber. A control mechanism includes a bleed passage, a supply passage, and a control valve. The control mechanism is capable of changing the pressure in the control pressure chamber to move the movable body. The movable body opposes the lug arm with a swash plate arranged between the movable body and the lug arm.
Claims14
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 that is connected to the swash plate and movable relative to the rotation body in the direction of the rotation axis of the drive shaft, and a control pressure chamber that is defined by the rotation body and the movable body and moves the movable body using pressure in the control pressure chamber,
- the control mechanism changes the pressure in the control pressure chamber to move the movable body, and the movable body faces the link mechanism with the swash plate arranged between the movable body and the link mechanism.
Dependencies are inferred from the claim text.