Centrifugal separator having a rotor and driving means thereof

US7022150B2 · kind B2 · utility

Assignee

• ALFA LAVAL CORPORATE AB · SE

Inventors

• Leonard Borgstrom · Tyresö, SE
• Claes-Goran Carlsson · Höör, SE
• Peter Franzen · Tullinge, SE
• Claes Inge · Hagfors, SE
• Torgny Lagerstedt · Stockholm, SE
• Hans Moberg · Stockholm, SE
• Stefan Szepessy · Stockholm, SE

Key dates

• Filing date: Oct 19, 2001
• Grant date: Apr 4, 2006
• Expiry date: Feb 16, 2022

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B04B2005/125
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

In a centrifugal separator, the rotor of which is adapted to be driven by means of a gaseous driving fluid, the rotor itself supports a ring of turbine blades extending around the rotational axis of the rotor. A stationary nozzle is adapted to direct a flow of the driving fluid towards the ring of turbine members. After the driving fluid has passed between the turbine blades and has influenced them for driving of the centrifugal rotor, it enters a reversing chamber formed by a stationary reversing member. In the reversing chamber the driving fluid is caused to change its direction and is then conducted again towards the ring of turbine members in order to be utilized a second time for driving of the centrifugal rotor.