| 摘要 |
PROBLEM TO BE SOLVED: To improve the sealing of a compression chamber, to secure the lubricity and cooling of a sliding part, and to realize high performance and high reliability with simple constitution. SOLUTION: An oil feeding fine pore 120 communicating with an oil sump in a high pressure space is bored into a lap upper surface without providing a chip seal groove on the lap upper surface of a slewing scroll part 103, and circumferential grooves are provided on a non-opening part located adjacently to the opening part of the oil feeding fine pore 120. Oil is pressure-differentially fed to the compression chamber 105 in the middle of compression by the oil feeding pore and two circumferential grooves, thereby improves the sealing of the compression chamber, and also promotes the lubricity and cooling of the sliding part. COPYRIGHT: (C)2006,JPO&NCIPI
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