Magnetic bearing assembly
US6541885B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2002 |
| Grant date | Apr 1, 2003 |
| Priority date | — |
| Expiry date | Mar 15, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S505/903
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The invention relates to a magnetic bearing assembly of a rotor in a stator, with at least one magnetic bearing (1) comprising a stator part (2) and a rotor part (3) arranged coaxially thereto in the operating position without contacting the stator part. The bearing effective area of the rotor part is formed by a radial exciting system (6) having a permanent magnet (4), while the stator part (2) comprises a high-temperature superconductor concentrically surrounding the radial exciting system (6) while maintaining an annular air gap (10). For increasing the specific rigidity of such a bearing, it is proposed according to the invention that the high-temperature superconductor is divided in at least two HTSC partial shells (7, 8) which, after the transition into the superconducting state, can be displaced against one another by an actuator (12) in the radial direction from a position in the hot state of the bearing, in which each HTSC partial shell (7′, 8′) has a first radial spacing (k) from the radial exciting system (6), into a working position with a second, smaller radial distance (operating gap (0)from the radial exciting system (6).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.