| 摘要 |
<p>In order to subject a valve (7) within the rotor of a centrifugal separator to a certain liquid pressure, a chamber (9) on one side of the valve is connected to an axial channel (12) in the vertical drive shaft (13) of the rotor, and a liquid surface is maintained in the channel very close to the axis of the rotor during the operation of the rotor. At the lower end of the drive shaft, the channel (12) opens axially though an orifice (31) having its edge at the desired radial level for the liquid surface, and this end of the shaft is arranged to rotate in a liquid body in a container (25) below the drive shaft (13).</p> |
