Title:
【発明の名称】超電導回転子
Document Type and Number:
Japanese Patent JP2543869
Kind Code:
B2
Abstract:
PURPOSE:To enhance the efficiency of a superconducting rotor by bending part of an exhaust tube for exhausting in emergency through a safety valve when gas helium abnormally rises under pressure in a U-shape from the vicinity of a rotary shaft center to the outer periphery side. CONSTITUTION:A superconducting rotor uses liquid helium for cooling its superconducting field winding, and exhausts its gas helium 3 through a safety valve 2 from an emergency exhaust tube 1 to the atmosphere out of the rotor when the helium 3 abnormally rises under pressure. In this case, the tube 1 is disposed at a cryogenic unit 12 and a normal temperature unit 13 at a rotary shaft center line 10 or its vicinity, and has a U-shaped bent 5 at an intermediate temperature unit 14 to the outer periphery side. The bottom of the bent 5 is approached to a heat exchanger 7 for cooling a torque tube 6. Thus, it can reduce heat invaded from the tube 1 by means of convection, thereby providing the rotor having high efficiency.
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Inventors:
SATO KAZUO
Application Number:
JP2810587A
Publication Date:
October 16, 1996
Filing Date:
February 12, 1987
Export Citation:
Assignee:
TOKYO SHIBAURA ELECTRIC CO
International Classes:
H02K55/04; (IPC1-7): H02K55/04
Domestic Patent References:
| JP58107060A |
Attorney, Agent or Firm:
Noriyuki Noriyuki (1 person outside)