Laminated magnetic structure for superconducting bearings
US5196748A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 5, 1992 |
| Grant date | Mar 23, 1993 |
| Priority date | — |
| Expiry date | Mar 5, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S505/727
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A laminated structure for a superconducting bearing includes at least two magnets stacked in opposing polarity with at least one metallic shim being disposed between adjacent magnets. The multiplicity of opposing polarity magnets causes an increase in flux density gradient and, therefore, bearing stiffness. The laminated structure for a superconducting journal bearing has annular permanent magnets that are magnetized and stacked axially. This structure is disposed within a hollow cylinder made of superconducting material. When the cylinder is made of a Type II superconducting material, the superconducting journal bearing provides support in both the radial and axial directions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.