JPS5683242A - Oil leak preventing device for rotary electric machine - Google Patents

Oil leak preventing device for rotary electric machine

Info

Publication number
JPS5683242A
JPS5683242A JP15916279A JP15916279A JPS5683242A JP S5683242 A JPS5683242 A JP S5683242A JP 15916279 A JP15916279 A JP 15916279A JP 15916279 A JP15916279 A JP 15916279A JP S5683242 A JPS5683242 A JP S5683242A
Authority
JP
Japan
Prior art keywords
oil
circumferential side
thrust collar
check valve
outside circumferential
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
JP15916279A
Other languages
Japanese (ja)
Inventor
Wataru Ogawa
Hisashi Toshima
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP15916279A priority Critical patent/JPS5683242A/en
Publication of JPS5683242A publication Critical patent/JPS5683242A/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
    • H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

PURPOSE:To prevent oil leakage by eliminating mixing of air into bearing oil and generation of oil mist, by providing a check valve, which is opened by centrifugal force of bearing oil, on outside circumferential side of an oil-draining hole communicating inside to outside of a thrust collar. CONSTITUTION:In case when a thrust collar 2 which is fixed to a rotary shaft is soaked in bearing oil, a check valve 15 is provided on outside circumferential side of an oil-draining hole communicating the inside circumferential side to the outside circumferential side of the thrust collar 2. This check valve is so designed that when bearing oil on the inside circumferential side of the thrust collar 2 is, by the centrifugal force, just about to move toward the outside circumferential side with the rotation of the rotary shaft, it is not opened by air discharge force but is opened only by the centrifugal force of the oil. As it is possible, by doing so, to prevent the check valve 15 from opening even at the time when air flowed into the oil-draining hole 9 and also air from flowing into bearing oil on outside circumferential side of the thrust collar, it is enabled to prevent generation of oil mist and leak of oil.
JP15916279A 1979-12-10 1979-12-10 Oil leak preventing device for rotary electric machine Pending JPS5683242A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15916279A JPS5683242A (en) 1979-12-10 1979-12-10 Oil leak preventing device for rotary electric machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15916279A JPS5683242A (en) 1979-12-10 1979-12-10 Oil leak preventing device for rotary electric machine

Publications (1)

Publication Number Publication Date
JPS5683242A true JPS5683242A (en) 1981-07-07

Family

ID=15687615

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15916279A Pending JPS5683242A (en) 1979-12-10 1979-12-10 Oil leak preventing device for rotary electric machine

Country Status (1)

Country Link
JP (1) JPS5683242A (en)

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