| 摘要 |
PURPOSE:To smoothly remove the heat of a superconducting field coil by forming a groove on the surface of a wedge at the side of the coil. CONSTITUTION:The rotor of a superconductive rotary electric machine is composed of a coil mounting shaft 2 having a helium flowing hole 21, a superconducting field coil 3, a helium outer cylinder 6, a liquid helium reservoir 15, and a filler 19. In this case, a wedge 22 for fixing the coil 3 is provided, a groove 23 is formed on the surface of the wedge 22 at the coil 3 side to communicate with a gap between the hole 19a of the filler 19 and the wedge 22. Thus, the heat of the coil 3 is absorbed by helium, and fed through the hole 21 to the reservoir 15. The helium cooled by the reservoir 15 is fed from other flowing hole 21 through the periphery of the coil 3, a through hole 19a, the groove 23 of the wedge 22 and the gap to a helium passage 20. As a result, the flowing resistance of the cooling circuit of the coil 3 can be reduced. |
