| 摘要 |
<p>A rotor (10) for a centrifugal separator, comprising bearing means (13, 14) for mounting the rotor for rotation about a substantially vertical axis in such a way that fluid to be treated can be supplied through the bearing means (13, 14) to the interior of the rotor (10), and at least one nozzle (25) provided on the periphery of the rotor in the region of its lower end such that the reaction force caused by fluid discharged through the nozzle (25) serves to spin the rotor (10) about the substantially vertical axis. The provision of the nozzle (25) on the rotor periphery (11), inter alia, provides increased torque because the nozzle is at a maximum distance from the rotary axis. According to other aspects of the invention, the rotor has three or more nozzles (either in the base or in the periphery) and nozzles are provided at different distances from the rotary axis, the outer nozzles providing incrased torque particularly for start-up.</p> |
