Title:
超電導回転電機の冷媒給排装置
Document Type and Number:
Japanese Patent JP2529381
Kind Code:
B2
Abstract:
PURPOSE:To facilitate the manufacture of the title device and improve the machining accuracy of the same by a method wherein a shaft, consisting of the cylinder of a refrigerant discharging unit, is made separable from the main body of a rotor shaft while an axial hole, provided on the cylinder, communicates with the radial hole of the same cylinder through a refrigerant discharging passage. CONSTITUTION:A rotary shaft side refrigerant discharging unit 21 is connected to a rotary shaft 20 through bolts 22 while a refrigerant discharging passage 6, provided on the refrigerant discharging unit 21, is a hole bored axially and communicates with a radial hole or a discharging port 7. Further, the refrigerant discharging passage 6 is connected to a refrigerant discharging pipe 23. The refrigerant discharging unit 21 is made of a magnetic steel or 9% nickel steel, for example, having no low-temperature brittleness and, therefore, it is easy to form a magnetic circuit when sealing is magnetic fluid seal. According to this method, the refrigerant discharging passage 6 may be formed easily by boring an axial hole and, therefore, the manufacture of the title device may be facilitated and the machining accuracy of the same may be improved.
Inventors:
中村 嘉延
小寺 溢男
成宮 宏
小寺 溢男
成宮 宏
Application Number:
JP7390189A
Publication Date:
August 28, 1996
Filing Date:
March 28, 1989
Export Citation:
Assignee:
三菱電機株式会社
International Classes:
H02K55/04; H05K5/04; (IPC1-7): H05K5/04
Domestic Patent References:
| JPS5976149A | ||||
| JPS5426411A |
Attorney, Agent or Firm:
曾我 道照 （外４名）