Patent ID: 9397546
Filing Date: 2016-07-19
CPC Classification: H02K,Y02E

Claim Text:
1. A field rotor of a superconducting rotary machine, comprising: a rotary shaft; a plurality of coil boxes; and a plurality of superconducting coils; wherein the coil boxes extend in a center axis direction of the rotary shaft, have walls defining spaces within the coil boxes, respectively, and are removably fastened to a peripheral surface of the rotary shaft, wherein the superconducting coils are disposed in the spaces of the coil boxes, respectively, and constitute field windings of the superconducting rotary machine, wherein a wall of each of the coil boxes is made of a heat-conductive metal, and wherein each of the coil boxes includes therein a cooling medium passage through which a cooling medium used for cooling the superconducting coil via the wall flows.