ROTARY COMPRESSOR

• Main Authors: NA, Sangmin, LEE, Jinhyu, PARK, Wonbae
• Format: Patent
• Language: English; French; German
• Published: 02.12.2020
• Subjects: BLASTING; ENGINE PLANTS IN GENERAL; HEATING; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTMACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTPUMPS; STEAM ENGINES; WEAPONS

A rotary compressor according to the present embodiment may include a rotary shaft; a plurality of plates supporting the rotary shaft; a cylinder provided between the plurality of plates to define a compression space, and provided with a vane slot; a roller slidably coupled to the rotary shaft to be provided inside the cylinder, and disposed with a hinge groove on an outer circumferential surface thereof; and a vane, one end of which is slidably coupled to the vane slot of the cylinder, and the other end of which is rotatably coupled to the hinge groove of the roller, wherein at least one of both axial end surfaces of the roller facing the plurality of plates is provided with a dimple portion having a preset depth. Through this, a contact surface between the roller and the plate may be suppressed from being in close contact with each other to suppress the roller or the plate from being damaged or the performance of the compressor due to a friction loss from being deteriorated, thereby improving the reliability and performance of the compressor.