| 摘要 |
PROBLEM TO BE SOLVED: To provide a compressor capable of preventing oil plugging in a passage for lubricating oil. SOLUTION: This compressor 1 is provided with a communication hole 11 communicating an intake chamber 44 with a delivery chamber 45, a columnar member 12 fitted into the communication hole 11, and a spiral groove 14 recessed along a wall surface of either of the communication hole 11 and the columnar member 12. An edge 14a of the spiral groove 14 from the inner side of the spiral groove 14 to the wall surface having the spiral groove 14 is formed to be round and smooth to be continuous with the wall surface having the spiral groove 14 on the friction-generated side as the columnar member 12 is inserted. COPYRIGHT: (C)2005,JPO&NCIPI
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