| 摘要 |
PROBLEM TO BE SOLVED: To maintain the sealing performance of a compressed space while favorably maintaining a sliding condition in a compression mechanism part. SOLUTION: The oil retentivity of a sliding surface is improved and lubricity is enhanced by arranging a micro hollow 22 in a set range T on a plane surface of a lower bearing part 2. Therefore, the sliding resistance relative to a sliding surface 3c on an axial side of a crankshaft is reduced. Moreover, the set range T of the micro hollow 22 is located inside the sliding range of the sliding surface 3c on the axial side of the crankshaft and a seal length between the high pressure area H and an intake chamber 12 can be assured. Therefore, the prevention of a decrease in the performance of a compressor due to a leakage is enabled. COPYRIGHT: (C)2011,JPO&INPIT
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