Title:
【発明の名称】超電導回転電機の回転子
Document Type and Number:
Japanese Patent JP2588641
Kind Code:
B2
Abstract:
PURPOSE:To provide a rotor for superconducting electric rotary machine having supporting structure of current lead pipe containing a current lead for feeding current to a superconducting field coil wherein insulator covering the current lead is protected against deterioration and liquid helium sump is sealed hermetically. CONSTITUTION:A superconducting field coil 5 is wound around a coil fixing shaft 4. Helium end plates 7 are disposed at the opposite ends of the coil fixing shaft 4 to form a liquid helium sump 8 between. A current lead 16 is connected at one end with the superconducting field coil 5. The current lead 16 is coated with an insulator 16b and the first welded part 23a of a thick ring coupling 23 is previously contained in a current lead pipe 16a subjected to seal welding. The current lead pipe 16a penetrates through the helium end plate 7 and secured through the thick ring coupling 23 to the other helium end plate 7 by subjecting the second welding part 3b of the thick ring coupling 23 and the helium end plate 7 to seal welding. The liquid helium sump 8 is sealed hermetically by the seal welded parts 24, 25.
Inventors:
NAKAMURA YOSHINOBU
HASE RYOJI
HASE RYOJI
Application Number:
JP5758091A
Publication Date:
March 05, 1997
Filing Date:
March 22, 1991
Export Citation:
Assignee:
CHODENDO HATSUDEN KANREN KIKI ZAIRYO GIJUTSU KENKYU KUMIAI
International Classes:
H02K55/04; (IPC1-7): H02K55/04
Domestic Patent References:
| JP4281362A |
Attorney, Agent or Firm:
Soga Doteru (6 people outside)