Title:
回転電機の密封油制御システム
Document Type and Number:
Japanese Patent JP6851254
Kind Code:
B2
Abstract:
To provide a seal oil control system of a rotary electric machine, which can set a differential pressure between a filler gas pressure and a seal oil pressure with a simple structure, and can improve reliability and maintainability.SOLUTION: In a seal oil control system of a rotary electric machine comprising a seal oil supply circuit SC for feeding seal oil to a sealer 3 of a shaft sealing section FS in the rotary electric machine 1 where hydrogen gas is sealed, the seal oil is supplied to the sealer 3 of the shaft sealing section FS from a surge tank 17 arranged above the shaft sealing section FS, and a differential pressure between the hydrogen gas pressure and the seal oil pressure in the rotary electric machine 1 is kept to a prescribed value by using a head pressure difference between the shaft sealing section FS and the surge tank 17.SELECTED DRAWING: Figure 1
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| JPS6091841 | ROTARY ELECTRIC MACHINE |
Inventors:
Moto Okamoto
Application Number:
JP2017095366A
Publication Date:
March 31, 2021
Filing Date:
May 12, 2017
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
H02K9/08
Domestic Patent References:
| JP57155970U | ||||
| JP2015177610A | ||||
| JP55107095A | ||||
| JP2008172939A |
Attorney, Agent or Firm:
Patent Business Corporation Parumo Patent Office
Masuo Oiwa
Keigo Murakami
Kenji Yoshizawa
Masuo Oiwa
Keigo Murakami
Kenji Yoshizawa