A oil furnishing structure of crank-shaft for hermetic compressor

摘要

PURPOSE: An oil supply structure is provided to allow the oil to be smoothly supplied to the gap formed between the crank shaft and the boss. CONSTITUTION: An oil supply structure comprises the first oil channel(34) for absorbing the oil through the inside of the lower portion of a crank shaft(30); first and second oil grooves(36,36') extended upward along the outer surface of the crank shaft corresponding to a boss(22) formed at a frame(20), wherein the first and second oil grooves are communicated to first and second communication holes(35,35') formed at the position corresponding to the oil channel and lower end of the boss; and the second oil channel(38) formed in an eccentric pin(31) of the crank shaft, wherein the second oil channel is supplied with the oil through the first and second oil grooves and scatters the oil to the upper portion of the crank shaft.