| 摘要 |
PROBLEM TO BE SOLVED: To provide a compressor supplying lubricating oil of an appropriate flow rate to the sliding portions of a shaft and bearing portions. SOLUTION: In the compressor, as shown in Fig. 1, a main oil feeding passage 25a extending in the axial direction and first and second auxiliary oil feeding passages 25b, 25c extending in the radial direction are formed inside a shaft 25 transmitting rotational driving force to a load-point movement type compression mechanism section 10. An angle θ between a segment leading from the center of the shaft 25 to a load point, a segment leading from the center of the shaft 25 to the center of an outlet hole 251c and a reference segment, is set to be 45°≤θ≤120°, on a reference vertical section as a surface including the outlet hole 251c of the second auxiliary oil feeding passage 25c supplied in first with oil flowing in the main oil feeding passage 25a, of the first and second auxiliary oil feeding passages 25b, 25c. COPYRIGHT: (C)2011,JPO&INPIT
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