| 摘要 |
PURPOSE:To lubricate securely slide portions of a bearing frame and an Oldham's coupling by opening an end of a oil return hole of the bearing frame to a position above the lower surface of an annular portion of the Oldham's coupling. CONSTITUTION:A bearing frame 8 of a scroll compressor is formed with a peripheral groove receiving an Oldham's coupling 13 and communicating to a oil return hole 25 for returning lubricating oil supplied from a spindle 6 to an oil reservoir 15 on the bottom in an enclosed shell 12. And an opening of the oil return hole 25 to the peripheral groove is provided above the lower surface 13e of an annular portion 13c of the Oldham's coupling 13 so that lubricating oil is always reserved on the slide surfaces of the bearing frame 8 and Oldham's coupling 13 for secure lubrication of said portions. |
