JPS55152962A - Magnetic fluid seal device - Google Patents

Magnetic fluid seal device

Info

Publication number
JPS55152962A
JPS55152962A JP5884679A JP5884679A JPS55152962A JP S55152962 A JPS55152962 A JP S55152962A JP 5884679 A JP5884679 A JP 5884679A JP 5884679 A JP5884679 A JP 5884679A JP S55152962 A JPS55152962 A JP S55152962A
Authority
JP
Japan
Prior art keywords
shaft
turning shaft
sealing section
cover
circular
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
JP5884679A
Other languages
Japanese (ja)
Inventor
Kiyoshi Takita
Yoshihiko Shindo
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.)
Fuji Electric Co Ltd
Original Assignee
Fuji 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 Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP5884679A priority Critical patent/JPS55152962A/en
Publication of JPS55152962A publication Critical patent/JPS55152962A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/40—Sealings between relatively-moving surfaces by means of fluid
    • F16J15/43—Sealings between relatively-moving surfaces by means of fluid kept in sealing position by magnetic force
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/162—Special parts or details relating to lubrication or cooling of the sealing itself

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)

Abstract

PURPOSE:To prevent damage of a bearing on account of expansion of an inner race of the bearing by circulating gas in a circular gas room to ventilate which is provided in a sealing section of a turning shaft, thereby to cool the sealing section from the turning shaft. CONSTITUTION:A shaft cover 3 is located between the external face of a turning shaft 4 and the internal face of a stationary pole block 2. Fluxes caused by a magnet 8 are concentrated to circular fine projections 31 formed on the cover 3. Magnetic fluid 9 charged in fine projections 3 functions to seal gas. The shaft cover 3 encloses a circular gas room 13 which contains a guide cylinder 121. When the turning shaft 4 is turned to the point where a nozzle 11 at the end of an inlet vent pipe 131 meets an inner through hole 122 formed on the circumference of a spacer 12, jet is fed at high velocity from the nozzle 11 into the gas room 13 to cool the sealing section of the shaft cover 3.
JP5884679A 1979-05-14 1979-05-14 Magnetic fluid seal device Pending JPS55152962A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5884679A JPS55152962A (en) 1979-05-14 1979-05-14 Magnetic fluid seal device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5884679A JPS55152962A (en) 1979-05-14 1979-05-14 Magnetic fluid seal device

Publications (1)

Publication Number Publication Date
JPS55152962A true JPS55152962A (en) 1980-11-28

Family

ID=13096023

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5884679A Pending JPS55152962A (en) 1979-05-14 1979-05-14 Magnetic fluid seal device

Country Status (1)

Country Link
JP (1) JPS55152962A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102322527A (en) * 2011-09-06 2012-01-18 东南大学 Gas sealing device for high-speed rotating machine
CN103925370A (en) * 2014-04-29 2014-07-16 北京交通大学 Magnetic liquid sealing device using magnetic grease
CN104165230A (en) * 2014-08-04 2014-11-26 北京交通大学 Ventilation type air cooling magnetic liquid sealing device
CN104165231A (en) * 2014-08-04 2014-11-26 北京交通大学 Water cooling magnetic liquid sealing device with shaft sleeve provided with rotary joint

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102322527A (en) * 2011-09-06 2012-01-18 东南大学 Gas sealing device for high-speed rotating machine
CN103925370A (en) * 2014-04-29 2014-07-16 北京交通大学 Magnetic liquid sealing device using magnetic grease
CN104165230A (en) * 2014-08-04 2014-11-26 北京交通大学 Ventilation type air cooling magnetic liquid sealing device
CN104165231A (en) * 2014-08-04 2014-11-26 北京交通大学 Water cooling magnetic liquid sealing device with shaft sleeve provided with rotary joint
CN104165230B (en) * 2014-08-04 2015-06-10 北京交通大学 Ventilation type air cooling magnetic liquid sealing device

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