Centrifugal separator

US4701158A · kind A · utility

Assignee

• Alfa Laval Separation A/S · SE

Inventors

• Claes Inge · Hagfors, SE
• Torgny Lagerstedt · Stockholm, SE
• Leonard Borgstroem · Stuvsta-Snättringe, SE
• Claes-Goeran Carlsson · Tullinge, SE
• Sven-Olof Naebo · Österbymo, SE
• Hans Moberg · Stockholm, SE
• Peter Franzen · Tullinge, SE

Key dates

• Filing date: Oct 23, 1986
• Grant date: Oct 20, 1987
• Expiry date: Oct 23, 2006

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S494/90
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A centrifugal separator has a rotor with an inlet device comprising means forming a receiving chamber that surrounds a stationary inlet tube extending into the rotor. The inlet tube opens into a receiving compartment of the receiving chamber. The receiving chamber also has an induction compartment which surrounds the inlet tube at some distance from its opening. A deflecting member separates the receiving compartment from the induction compartment and leaves a passage between itself and the inlet tube. Induction members connected with the rotor are operable to induce liquid rotation in the induction chamber radially outside the level of said passage between the deflecting member and the inlet tube, whereas no substantial induction of rotation should take place in the receiving compartment.