Patent ID: 7944105
Filing Date: 2011-05-17
Classification: F16C,H02K,Y02E

Abstract:
1. A synchronous machine, comprising: a stator having stator windings; a rotor having a rotor shaft and a pole core fastened to the rotor core; two magnetic bearings supporting the rotor against the stator, each said bearing comprising a first bearing part, which is arranged on or in the stator and cooled by a first cryostat and which has a high-temperature superconductor structure, and a second rotor-side bearing part separated from the first bearing part by a gap and separated axially from the pole core, wherein the first bearing part interacts during operation of the bearing with the second bearing part, when magnetized, to act as a bearing; at least one magnetic field-generating excitation coil arranged in the pole core and interacting with the stator windings to generate rotation of the rotor or generating current in the stator, as the rotor rotates; and a flux feed section deflecting a magnetic flux generated by the excitation coil into the second bearing part.