Doowon Technical College

Other

Doowon Electronic Co., Ltd.

Doowon Electric Co., Ltd.

Doowon Electronics Co., Ltd

Tae-jin Lee

Geon-ho Lee

Ki-beom Kim

Young-Chang Han

Dong-hui Lee

Min-jun Kim

Geon-Ho Lee

Provides is a variable displacement swash plate type compressor comprising a drive shaft, a lug plate fixedly installed at one side of the drive shaft, a swash plate dispose at another side of the drive shaft and rotated by the lug plate to vary a tilt angle thereof, a sleeve reciprocally moving along the drive shaft to let the swash plate rotate, and a spring supported between the sleeve and the lug plate, characterized in that the variable displacement swash plate type compressor comprises a restriction ring installed around the drive shaft between the lug plate and the sleeve to contact with the swash plate at a maximum tilt angle of the swash plate, wherein an end of the restriction ring is contacted with the lug plate and another end of the restriction ring is supported by the spring. Thus, since the direct contact between the swash plate and the lug plate is prevented, when the swash plate reaches at the maximum tilt angle, it is possible to reduce the noise and the wear remarkably.

Variable displacement swash plate type compressor

Provided is a variable displacement swash plate type compressor including a cylinder block having a plurality of cylinder bores, a drive shaft rotatably supported by the cylinder block, a lug plate fixedly installed at the drive shaft, a swash plate rotated by the lug plate to vary its inclination angle, and pistons reciprocally accommodated in the cylinder bores depending on rotation of the swash plate, the compressor including a projection projecting from the lug plate toward the swash plate and disposed only behind the rotational direction of the drive shaft, a slope formed on the rear part of the lug plate at one side of the projection, an arm projecting from the swash plate toward the lug plate, a first guide coupled to the arm in front of the rotational direction of the drive shaft to move along the slope in a contact manner, and a second guide coupled to the arm adjacent to the projection to move along the slope in a contact manner.

Provided is an oil separating structure of a variable displacement compressor including: a cylinder block having a plurality of cylinder bores; a front housing disposed in the front of the cylinder block to form a swash plate chamber; a drive shaft rotatably supported at the cylinder block; a lug plate disposed in the swash plate chamber of the front housing and fixedly installed at the drive shaft; a rear housing disposed in the rear of the cylinder block and having a discharge chamber and a suction chamber communicating with the cylinder bores; a swash plate installed to be rotated by the lug plate to vary its inclination angle; pistons connected to the swash plate and reciprocating in the cylinder bores; a suction path for communicating the swash plate chamber and the discharge chamber; an additional exhaust path for communicating the swash plate chamber and the suction chamber; and a control valve installed in the middle of the suction path, characterized in that the drive shaft has a communication aperture formed therein for communicating the swash plate chamber and the suction chamber, and the lug plate has a first communication hole passing therethrough and a second communication hole formed therein for communicating the first communication hole and the communication aperture. Therefore, oil and refrigerant are smoothly separated from each other using only the communication hole formed in the lug plate without an additional oil separator, thereby simplifying an inner constitution of a compressor.

Oil separating structure of variable displacement compressor

Growing community of inventors

Incheon, South Korea

Tae-jin Lee