Centrifuge with a magnetically stabilized rotor for centrifugal goods

US6806604B2 · kind B2 · utility

Assignees

• Kendro Laboratory Products, Inc. · US
• Technologiezentrum GmbH - Rittergut Adelwitz · DE

Inventors

• Frank Werfel · Leipzig, DE
• Dietmar Kopp · Einbeck, DE
• Viktor Betke · Hannover, DE
• Ingo Jaeckel · Badenhausen, DE
• Uta Flögel-Delor · Torgau, DE

Key dates

• Filing date: Jul 12, 2001
• Grant date: Oct 19, 2004
• Expiry date: Jul 12, 2021

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16C2202/34
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A centrifuge with a rotor set-up having at least one magnetic bearing is invented to operate a novel centrifuge. The rotor arrangement is connected with at least one permanent magnet configuration which is radially separated by small gap from a passive superconducting magnet stator. The permanent magnets which are adjusted in such a way that the escaping magnetic flux penetrates the adjacent surface of the passive superconducting magnet stator at a substantially perpendicular orientation. A driving motor unit, preferably in the form of a contactless induction engine, ensures a free and frictionless rotation. The passive superconducting magnet stator is comprised a melt textured superconducting YBCO material of high critical current density which can be cooled below its critical temperature of T=92 K using an integrated cryogenic unit to obtain the superconducting state. The stator has a preferred shape of a cylinder or hollow cylinder.