| 摘要 |
<p>A rotary piston compressor, which is preferably a rotary piston vacuum pump has two shafts which are supported at least in a separation wall or in a separation housing arranged between the section chamber and the adjacent pumping chamber partially filled with oil. The sealing is achieved by a slide ring sealing. A pump fitted on the shaft of the rotary piston is used for its lubrication; its discharged side is connected with the chambers of the slide ring sealing.</p> |
