| 摘要 |
<p>In a revolution type compressor using a balance weight for balancing a rotating mass, the effect of oil churn reduction is enhanced, and compressor input is reduced. A balance weight fixed to a drive shaft between a rotor of an electric motor 4 and a compression mechanism includes a weight portion in a substantially semicircular column shape for balancing a rotating mass, a cover portion which is substantially semi-cylindrical and has an opening in the vicinity of a top and bottom at an opposite side in a radial direction from the weight portion, and a hollow space surrounded by the weight portion and the cover portion. Further, a space for discharging oil is provided between the balance weight and the rotor. By the structure, reduction in oil churn, and reduction in input of the compressor are realized, and the compressor with less power consumption is obtained.</p> |
