| 摘要 |
PURPOSE: A lubrication structure for hermetic rotary compressor is provided to prevent noise or damage of parts by allowing the space formed between the bearing and the eccentric portion of the rotating shaft to be constantly filled with a predetermined amount of lubrication oil. CONSTITUTION: A hermetic rotary compressor includes a motor unit installed in a casing filled with a predetermined amount of oil; a rotating shaft having an eccentric portion and which is coupled to the rotor of the motor unit; a cylinder coupled to the casing, and which has an internal space for accommodating the eccentric portion of the rotating shaft; and a vane elastically coupled to the cylinder, and which divides the internal space of the cylinder into a suction area and a compression area during rotation of the rotating shaft. An oil flow channel is formed in an axial direction within the rotating shaft, so as to absorb the oil from the casing and feed the absorbed oil to a frictional surface. The cylinder which slide contacts the eccentric portion of the rotating shaft, has a bearing surface where an oil storage groove(100) for storing the oil fed through the oil flow channel and feeding the stored oil to the bearing surface.
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