| 摘要 |
PURPOSE:To improve the oil feeding capacity of a scroll compressor by covering the upper part of an oil reservoir by a partitioning plate and forming an orifice which returns oil into the oil reservoir after lubricating a bearing and suppresses the conterflow of the oil due to forming phenomenon. CONSTITUTION:A partitioning plate 30 which covers over an oil reservoir 15 at the lower-edge part of a main shaft 6 is constituted of a thin plate and has a penetration hole 30a which is pushing-molded onto the inner periphery side, projecting towards the undersurface side, and penetrates through the lower edge part of the main shaft 6. Said penetration hole 30a is formed into a form narrower at the top edge so that the extruded basic part 300a has a large diameter and the top edge part 300b has a small diameter, and a kind of orifice is constituted. Though the oil flows smoothly from the upper part of the partitioning plate to the lower part because of the shape of the orifice, the counterflow of the oil on oil forming can be suppressed by a certain degree.
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