Patent ID: 9568046
Date: 2017-02-14
CPC Classifications: F16C,H01F,H02K

Claim:
1. A magnetic radial bearing for rotatably supporting a rotor, said magnetic bearing comprising a stator having several coil assemblies which are arranged about an axis of the radial bearing in a circumferential direction, each of the coil assemblies including a laminated core with single sheets and a coil which is wound about the laminated core and configured as an axial field coil, said single sheets of the laminated core being stacked in the circumferential direction, and each of the coil assemblies and also each of the laminated cores and each of the coils provided in each of the coil assemblies have a kidney-shaped form with radially outwardly curved radially inner and radially outer surfaces, so that each of the kidney-shaped coils is wound about each of the kidney-shaped laminated cores in each of the coil assemblies, an annular housing in which the coil assemblies are secured, and a separate supporting ring attached to an inner circumference of the annular housing and configured to radially support the coil assemblies from inside, and the supporting ring is provided with radial projecting vanes which hold it in position relative to the housing by a positive connection with the housing and insulate the coil assemblies from each other by location of one of the vanes between two of the coil assemblies.