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Title: Thin film superconductor magnetic bearings

A superconductor magnetic bearing includes a shaft (10) that is subject to a load (L) and rotatable around an axis of rotation, a magnet (12) mounted to the shaft, and a stator (14) in proximity to the shaft. The stator (14) has a superconductor thin film assembly (16) positioned to interact with the magnet (12) to produce a levitation force on the shaft (10) that supports the load (L). The thin film assembly (16) includes at least two superconductor thin films (18) and at least one substrate (20). Each thin film (18) is positioned on a substrate (20) and all the thin films are positioned such that an applied magnetic field from the magnet (12) passes through all the thin films. A similar bearing in which the thin film assembly (16) is mounted on the shaft (10) and the magnet (12) is part of the stator (14) also can be constructed.
  1. (Avon, CT)
Issue Date:
OSTI Identifier:
United Technologies Corporation (Hartford, CT) ANL
Patent Number(s):
US 5479059
Application Number:
Contract Number:
Research Org:
Argonne National Laboratory (ANL), Argonne, IL
Country of Publication:
United States
film; superconductor; magnetic; bearings; bearing; shaft; 10; subject; load; rotatable; axis; rotation; magnet; 12; mounted; stator; 14; proximity; assembly; 16; positioned; interact; produce; levitation; force; supports; films; 18; substrate; 20; applied; field; passes; similar; constructed; levitation force; magnetic bearings; magnetic bearing; magnetic field; applied magnetic; superconductor magnetic; superconductor magnet; film superconductor; /310/505/