| 摘要 |
PROBLEM TO BE SOLVED: To efficiently supply lubricating oil to a bearing portion 6 in a compressor 100. SOLUTION: A refrigerant is compressed by a movable scroll 10. The high pressure refrigerant passes through a refrigerant flow path 11a and the lubricating oil is separated from the refrigerant at a lubricating oil separating section 14. Subsequently, the lubricating oil passes through lubricating oil flow paths 11b, 10a so as to flow to an oil storage chamber 8b. The lubricating oil that has passed the oil storage chamber 8b flows toward a projection 1e of a housing 1 after passing through a lubricating oil flow path 5a of a rotary shaft 5 so as to bring the bearing portion 6 into a lubricated condition. Then, the lubricating oil passes the bearing portion 6 so as to be discharged through a gap S between a top end surface of an annular projecting portion 5b and an inner wall surface 1c of the housing 1. The annular projecting portion 5b and the inner wall surface 1c of the housing 1 constitute a throttle portion for throttling a flow of the lubricating oil so that a flow rate of the lubricating oil passing the bearing section 6 can be adjusted. COPYRIGHT: (C)2008,JPO&INPIT
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