| 摘要 |
A separation cone (30) is mounted into the interior chamber of a centrifugal separator rotor (10), which comprises a cover (14) releasably connected to a base (16), in order to provide a frusto-conical wall subdividing the chamber into upper and lower regions. This slows the passage of fluid from the upper to the lower region, which takes place via openings (24) and/or via a gap between the inner rim (32) of the cone (30) and the axial inlet tube (12). This in turn improves efficiency of separation of contaminant particles and prevents such particles passing to the base (16), potentially to block a nozzle (20). The separation cone (30) is now connected to the cover (14) by a releasable snap fit arrangement, such as by deflectable tabs (38) around the periphery of the separation cone (30) engaging into a groove (15) around the interior surface adjacent a lower edge of the cover (14). This allows there to be a predetermined sequence of servicing operations and ensures that the separation cone (30) will reliably stay with the cover (14) when the cover is removed so avoiding any risk that debris might drop out of the cover, either into the base which could be detrimental in blocking a nozzle, or nearby, causing mess, contamination and delay. |
