STRUCTURE FOR FEEDING OIL IN COMPRESSOR

摘要

An oil supplying structure of a compressor is provided to prevent abrasion of elements and to extend lifespan of the elements by supplying oil from the bottom of a casing to the sliding elements while the compressor is operated. An oil supplying structure of a compressor comprises a crank shaft, an outer groove(117), and an inner groove(118). The crank shaft transfers torque of a motor to a compression unit, and has a penetration passage(F1) inside axially. The outer groove is formed at an outer periphery surface of the crank shaft to be connected to the penetration passage, and supplies oil to the sliding part. The inner groove is formed at an inner wall of the crank shaft to be connected to the outer groove, and increases an amount of oil supplied to the outer groove. The ratio of width of the inner groove to diameter of the crank shaft is 0.25~0.3.