PERMANENT MAGNET GENERATOR ROTOR FOR GAS TURBINE, ITS MANUFACTURING METHOD, AND GAS TURBINE

摘要

A gas turbine comprises a first rotor shaft end part having a hollow part in which a bolt is passed through the axial center, a second rotor shaft end part having a hollow part in which the bolt is passed through the axial center and a bearing part, and a permanent magnet generator rotor interposed between the first and second rotor shaft end parts. The permanent magnet generator rotor includes a magnetic cylindrical body fixed between the first and second rotor shaft end parts, a permanent magnet held on the outer periphery of the magnetic cylindrical body, a non-magnetic cylindrical body thermally fitted to the outer periphery of the permanent magnet, a stator disposed on the outer periphery of the permanent magnet, and the bolt passed through the first and second rotor shaft end parts, the hollow part of a generator, and the magnetic cylindrical body.