JPS5641745A - Sealing oil feeder - Google Patents

Sealing oil feeder

Info

Publication number
JPS5641745A
JPS5641745A JP11567379A JP11567379A JPS5641745A JP S5641745 A JPS5641745 A JP S5641745A JP 11567379 A JP11567379 A JP 11567379A JP 11567379 A JP11567379 A JP 11567379A JP S5641745 A JPS5641745 A JP S5641745A
Authority
JP
Japan
Prior art keywords
pump
emergency
normal
check valve
circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP11567379A
Other languages
Japanese (ja)
Inventor
Ryoji Tachibana
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP11567379A priority Critical patent/JPS5641745A/en
Publication of JPS5641745A publication Critical patent/JPS5641745A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
    • H02K5/124—Sealing of shafts

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
  • Control Of Fluid Pressure (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

PURPOSE:To shorten the rise time of hydraulic pressure when an emergency pump operates by means of a check valve provided to prevent a reverse flow with a passage from the normal pump to the emergency pump though a communicating tube connecting between the discharge side of the normal pump and the suction side of the emergency pump. CONSTITUTION:The normal pump 7 is provided in a main circit 6 extending from an oil tank to a shaft sealing device 3 while an emergency circuit 12 is provided parallel to the main circuit 6 and the emergency pump 1 is provided therein. The discharge side of the normal pump 7 is connected to the suction side of the emergency pump B with a communicating tube 17 having a throttle devie 18 and a check valve 19 is provided in the course to prevent a reverse flow from the emergency pump 13. A check valve 20 is provided in the emergency circuit 12 between the oil tank 20 and the emergency pump 13. This shortens the rise time of hydraulic pressure when the pump 13 is actuated at an emergency as it is always in oil.
JP11567379A 1979-09-11 1979-09-11 Sealing oil feeder Pending JPS5641745A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11567379A JPS5641745A (en) 1979-09-11 1979-09-11 Sealing oil feeder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11567379A JPS5641745A (en) 1979-09-11 1979-09-11 Sealing oil feeder

Publications (1)

Publication Number Publication Date
JPS5641745A true JPS5641745A (en) 1981-04-18

Family

ID=14668450

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11567379A Pending JPS5641745A (en) 1979-09-11 1979-09-11 Sealing oil feeder

Country Status (1)

Country Link
JP (1) JPS5641745A (en)

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