COOLING STRUCTURE OF SUPERCONDUCTING MOTOR

摘要

In a cooling structure of a superconducting motor in which a superconducting coil 22 is attached to a rotor, grooves 24, 25, and 26 are concavely provided on an outer surface of a rotating shaft 23 that penetrates and is fixed to the rotor 17. A refrigerant is circulated through a refrigerant circulation pipe 33 disposed inside the grooves 24, 25, and 26 so that the superconducting coil 22 is cooled by the refrigerant.