Centrifugal separator with venturi arrangement

US8323168B2 · kind B2 · utility

Assignee

• MANN+HUMMEL GmbH · DE

Inventors

• Sebastian Naegelen · Hamburg, DE
• Klemens Dworatzek · Trier, DE
• Anthony W. Fell · Yeovil, GB
• John Lawrence Mills · Ilminster, GB
• Nigel Burford · Taunton, GB

Key dates

• Filing date: Nov 12, 2009
• Grant date: Dec 4, 2012
• Expiry date: Nov 12, 2029

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B04B11/04
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The invention describes a self-powered centrifugal separator comprising a base, a rotor mounted on an operably substantially vertical axis for rotation thereabout by reaction to fluid emission from rotor nozzles therein, a housing mounted on the base and enclosing the rotor, a sump formed in the base below the rotor, a fluid passageway through the base extending from an inlet port to an outlet port and including a diversion port to supply fluid to the interior of the rotor by way of the rotation axis, a drain passage in the base for draining fluid from the sump to the fluid passageway, and a venturi arrangement provided in the fluid passageway in the base to develop suction pressure to draw fluid from the drainage passage into the fluid passageway, whereas a spring loaded valve body is provided in the fluid passageway, said body being configured and arranged to shut off supply of fluid to the interior of the rotor when pressure of fluid entering the inlet port falls below a predetermined minimum pressure value and also to restrict and/or shut off supply of fluid to the interior of the rotor when pressure of fluid entering the inlet port rises above a second predetermined pressure v…