| 摘要 |
PURPOSE:To utilize centrifugal force and surely lubricate a bearing part, by forming oil paths between a position the most distant separated from the center of a crankshaft in the internal peripheral surface of a bearing bush and the periphery of the crankshaft, in the crank joint part of an enclosed type scroll compressor. CONSTITUTION:A bearing 6 supports the periphery of a crankshaft 28, while its inside forms an eccentric hole inserting the shaft of a swivel scroll. A compressor, arranging a bearing bush 2 in the eccentric hole, forms oil paths 29a, 29b between a position separated the most distant from the crankshaft center 0 in the internal peripheral surface of said bearing bush 2 and the periphery of the crankshaft. Consequently, the compressor, even if supplied oil through an oil path 17 in the crankshaft foams or a quantity of the oil decreases, supplies only the oil to the periphery of the crankshaft by centrifugal force while discharges gas to the outside through a gas relief hole 30.
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