| 摘要 |
PROBLEM TO BE SOLVED: To provide a gas compressor which enables a high pressure supply hole to be formed with good processability and reduces the processing costs.SOLUTION: A gas compressor includes a high pressure supply hole 35 for supplying a refrigeration oil R having a discharge pressure to a vane groove at the end of compression process of a cooling gas in a compression chamber. The high pressure supply hole 35 is formed in a front side block 14 by punching and has a structure where a small diameter part 35a, which is formed at the upstream side in a flow direction of the supplied refrigeration oil R and has a small diameter, and a large diameter part 35b, which is formed at the downstream side of the small diameter part 35a and has a diameter larger than that of the small diameter part 35a, are integrally formed along a longitudinal direction of the high pressure supply hole 35. |
