Patent · US Expired

Separation device having a centrifugal rotor

US6955637B1 · kind B1 · utility

18Cited by

16References

15Claims

0Family size

Assignee

ALFA LAVAL CORPORATE AB · SE

Inventors

Jesus R. Montano · General Escobedo, MX
Rolf Ridderstrale · Stockholm, SE
Klaus Stroucken · Åkersberga, SE

Key dates

Filing date	Mar 21, 2000
Grant date	Oct 18, 2005
Priority date	—
Expiry date	Mar 21, 2020

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF04D1/14
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

In a separation device for separating particles from a liquid, which is present in a container, a centrifugal rotor is rotatable around a vertical rotational axis. The centrifugal rotor has a tubular inlet member, which extends down into liquid to be treated and which upon rotation of the centrifugal rotor forms a pumping member adapted to pump liquid upwardly and into the centrifugal rotor. The rotatable inlet member is surrounded by a non-rotatable wall, a sealing device being adapted to seal between the rotatable inlet member and the non-rotatable wall. Thereby is avoided that liquid is pumped upwardly on the outside of the inlet member. Furthermore, a smallest possible part of the outside of the inlet member can be in contact with liquid, independent of the level of the liquid surface in the container.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.