Title:
MAGNETIC BEARING WITH DAMPING
Document Type and Number:
WIPO Patent Application WO2001086151
Kind Code:
A3
Abstract:
The invention relates to a magnetic bearing for rapidly rotating machines (1), in particular, for turbo compressors, drag vacuum pumps, or similar, comprising two bearings (3, 4), each with a stator magnetic-ring set (5, 7) and a rotor magnetic-ring set (6, 8) and means (31) for damping the rotor movement, preferably in a radial direction. According to the invention, the damping agent may be simplified, whereby the magnetic bearing (3, 4) consists of magnetic-ring sets (5, 6; 7, 8) arranged concentrically to each other, in which the fixed magnetic-ring set (5 or 7) is arranged externally and the rotating magnetic-ring set (6 or 8) is arranged internally and the damping agent (32, 54, 55) is connected to the outer circumference surfaces of at least one part of the magnetic ring of each of the stator-side magnetic-ring sets (5, 7) and is made from a non-magnetic, material with good electrical conducting properties.
Inventors:
BEYER CHRISTIAN (DE)
ENGLAENDER HEINRICH (DE)
HODAPP JOSEF (DE)
ENGLAENDER HEINRICH (DE)
HODAPP JOSEF (DE)
Application Number:
PCT/EP2001/004166
Publication Date:
March 21, 2002
Filing Date:
April 11, 2001
Export Citation:
Assignee:
LEYBOLD VAKUUM GMBH (DE)
BEYER CHRISTIAN (DE)
ENGLAENDER HEINRICH (DE)
HODAPP JOSEF (DE)
BEYER CHRISTIAN (DE)
ENGLAENDER HEINRICH (DE)
HODAPP JOSEF (DE)
International Classes:
F04D19/04; F04D29/058; F04D29/056; F16C32/04; F16C39/06; H02K5/128; H02K7/09; (IPC1-7): F04D19/04; F16C39/06
Foreign References:
| EP0413851A1 | 1991-02-27 | |||
| EP0470637A1 | 1992-02-12 | |||
| EP0445690A1 | 1991-09-11 | |||
| EP0467341A1 | 1992-01-22 | |||
| US4471331A | 1984-09-11 |
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