Passive electromagnetic radial bearing, e.g. for heavy flywheel storage device, has shell field structure, radial air gap, bearing function provided by magnetic binding of ferromagnetic ring body

摘要

The device has a shell magnetic field structure, within which there is an almost field-free space, with a radial working air gap whose magnetic flux is otherwise completely in ferromagnetic material and whose radial bearing function is provided by the magnetic binding of a ferromagnetic ring body that reduces the magnetic resistance in the shell field circuit by its central position in the air gap.