| 摘要 |
<p>A superconductive rotor (10), such as an electric generator rotor, has a cylindrical-shaped solid (e.g., iron) core (14) having a pair of diametrically-opposed and longitudinally-extending slots (16,18). A longitudinally-extending, racetrack-shaped superconductive coil (20) surrounds the solid core and has straight portions (26) located in the slots. A longitudinally extending, racetrack-shaped thermal shield (22) generally encloses the superconductive coil and has generally straight portions (30) located in the slots. The thermal shield is generally spaced apart from the superconductive coil and from the solid core. A pair of end shafts (32,34) are each attached to the solid core and are spaced apart from the thermal shield. One end shaft has a cryogen transfer coupling (38) for cooling the superconductive coil, preferably with gaseous helium. <MATH></p> |
