Title:
HYDROGEN SEALING DEVICE FOR ROTARY ELECTRIC MACHINE
Document Type and Number:
Japanese Patent JPS58186352
Kind Code:
A
Abstract:
PURPOSE:To prevent the lack of oil supply amount and to prevent the leakage of hydrogen in a rotary electric machine by communicating between the sealed oil supply tube in the vicinity of a bearing box and an exhaust oil box in the box via a sealing oil supply bypass tube, and providing a solenoid valve which is interlocked to a lifting oil supply device. CONSTITUTION:A sealing oil supply bypass tube 17 which communicates between a sealing oil supply tube 7 in the vicinity of a bearing box 5 and an exhaust oil box 9a in the box 5 is provided, and a solenoid valve 18 which interlocks a lifting oil supply device 14 for supplying oil through a bearing 9 to a rotational shaft 1 is provided at the tube 17. In other words, a solenoid valve 18 which interlocks a motor 15 for a lifting pump is provided at the tube 17, and when the motor 15 is operated, the valve 18 is opened, while when the motor 15 is stopped, the valve 18 is opened. In this manner, the abrupt increase in the sealing oil amount can be prevented, and the leakage of hydrogen can be prevented.
Inventors:
HIRAI TSUYOSHI
Application Number:
JP6823282A
Publication Date:
October 31, 1983
Filing Date:
April 22, 1982
Export Citation:
Assignee:
HITACHI LTD
International Classes:
H02K9/08; H02K5/124; H02K9/24; (IPC1-7): H02K9/08; H02K9/24
Attorney, Agent or Firm:
Akio Takahashi