Magnetic levitation system
US7859157B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 1, 2006 |
| Grant date | Dec 28, 2010 |
| Priority date | — |
| Expiry date | Sep 1, 2027 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C32/0406
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A magnetic levitation system for supporting an object against gravity by a supporting force includes a permanent-magnet dipole aligned in a vertical position and coupled to the object, a supporting-field generator and a stabilization system. The supporting-field generator generates a supporting force on the permanent-magnet dipole via a supporting field. The supporting field is a two-dimensional or three-dimensional magnetic quadrupole field so that the supporting force is independent of a position of the dipole. The stabilization system constrains the dipole against movements in at least one horizontal direction, and includes a diamagnetic element coupled to the dipole and arranged below the dipole, and a stabilizing-field generator generating a second two-dimensional or three-dimensional stabilizing field to restore said diamagnetic element to a position where the field strength of the stabilizing field has a local minimum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.