| 摘要 |
PROBLEM TO BE SOLVED: To prevent lubricant oil from sintering into a compression work chamber when a main body of a non-oil supply type compressor is stopped.SOLUTION: There are provided a non-oil supply type compressor main body 1 having a rotor, a rotor shaft 48A and bearings 11A, 11B, 12A, 12B for supporting the rotor shaft; a gear casing 2 storing gears for transmitting a driving force from a driving source to the compressor main body; and lubrication passages 28, 29, 30, 31, 32 and 33 extending from the compressor main body and the lower side of the upper surface of the gear casing and arranged at the upper surface, connected to each of the branched passages for supplying lubricant oil to each of the bearings and gears, and the lubricant oil is flowed with the gear casing side being applied as an upstream side. Among the portions arranged along the compressor main body and the upper surface of the gear casing, a lubricating passage has at least one raising part 27 having a predetermined height arranged at the upstream side of the branch passage for supplying lubricant oil to the bearing and at the downstream side of the branch passage for supplying lubricant oil to the gear.SELECTED DRAWING: Figure 1 |
