| 摘要 |
PROBLEM TO BE SOLVED: To increase operating efficiency by almost eliminating the stirring resistance of a lubricating oil against a movable member in a scroll compressor having the movable member such as an Oldham's coupling and a movable scroll. SOLUTION: An oil sump part 23c for reserving the lubricating oil is formed in a frame 23 facing a rear pressure space S3. The oil sump part 23c is formed lower than the bottom surface of a second guide groove 23a formed in the frame 23a correspondingly to the frame key of the Oldham's coupling 26. The second guide groove 23a communicates with the oil sump part 23c through a communication groove 23d. The lower end of an oil discharge pipe 42 communicating with a low-pressure space S1 is positioned in the oil sump part 23c. The oil discharge pipe 42 is so installed that its lower end is positioned above the bottom surface of the second guide groove 23a. COPYRIGHT: (C)2008,JPO&INPIT
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