| 摘要 |
<p>PROBLEM TO BE SOLVED: To minimize abrasive loss relative to a bearing so as to increase efficiency by decreasing a partial positional area where the external peripheral surface of a crankshaft makes turning contact with the bearing. SOLUTION: In a reciprocating compressor, oil elevated via an oil pick up 27 reaches an oil groove 43 formed on the outer peripheral surface of a crankshaft 50 so as to lubricate partial position making contact with a bearing 25 and many grooves 70 are formed on the external peripheral edge of the crankshaft 50 in contact with the bearing 25.</p> |
