| 摘要 |
PROBLEM TO BE SOLVED: To enhance reliability with excellent bearing lubrication hardly causing seizure and abnormal wear and causing no drop of oil film pressure without supplying a dissolved refrigerant in oil to each bearing part even when a large quantity of refrigerant is dissolved in oil. SOLUTION: This scroll compressor is provided with an oil feeding mechanism comprising a throttle part 33 in an oil feeding passage 32 of a crankshaft 12 and supplying oil to a main bearing part 34 and a swing bearing 40 through an oil feeding hole 35 allowing the oil feeding passage 32 to communicate with the main bearing part 34. Oil supplied through the inside of the oil feeding passage 32 is thereby reduced in pressure by the throttle part 33, and the dissolved refrigerant in the oil is gasified to foam. Further, the oil is stuck to a passage wall surface by centrifugal force in the oil feeding passage 32 and supplied to the main bearing part 34 through the oil feeding hole 35, and the gasified refrigerant reaches a swing bearing part space 27 at the upper end of a pivot part 12a through the oil feeding passage 32. The dissolved refrigerant is not thereby supplied to each bearing part. COPYRIGHT: (C)2006,JPO&NCIPI
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