ROTOR FOR PERMANENT MAGNET GENERATOR FOR GAS TURBINE, METHOD OF PRODUCING THE ROTOR, GAS TURBINE, AND METHOD OF PRODUCING THE GAS TURBINE

摘要

Disclosed are a rotor structure for a turbine and a compressor that are formed on the same axis, a compressor and a turbine constructed from a permanent magnet generator and formed on the same axis as a rotor shaft of the rotor structure, and a rotor structure for the permanent magnet generator. In the permanent magnet generator, a magnetic circular cylindrical body is inserted on the inner circumferential side of a ring-like permanent magnet split in the axial direction, a non-magnetic circular cylindrical body is shrink fitted on the outer circumference of a rotor shaft processed to the same diameter as the ring-like permanent magnet and of the ring-like permanent magnet, and the ring-like permanent magnet and the rotor shaft are magnetically connected and integrated together by the non-magnetic circular cylindrical body. The inner circumference of both end surfaces of the shrink fitted non-magnetic circular cylindrical body is welded to the outer periphery of the rotor shaft to connect them, thereby corrosive gas and liquid are prevented from entering into the rotor.