Outlet device and a centrifugal separator provided with such an outlet device

US5788622A · kind A · 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
• Mikael Sundström · Stockholm, SE

Key dates

• Filing date: Nov 12, 1997
• Grant date: Aug 4, 1998
• Expiry date: Nov 12, 2017

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B04B11/082
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

An outlet device for discharging liquid from a chamber (16) in a centrifugal rotor, that is rotatable around a rotational axis (12), comprises an outlet member (29). This outlet member is turnable around a turning axis (26) in parallel with said rotational axis (12) and is held by a spring (31) pressed radially outwardly in the chamber (16) against and partly into a liquid body rotating with the centrifugal rotor. The outlet member (29), which further forms an outlet channel (34) and an inlet opening (30) communicating therewith, is shaped such that the inlet opening (30) is situated downstream of said turning axis (26) during operation of the centrifugal rotor.