JPS5715152A - Sealing apparatus - Google Patents

Sealing apparatus

Info

Publication number
JPS5715152A
JPS5715152A JP8918680A JP8918680A JPS5715152A JP S5715152 A JPS5715152 A JP S5715152A JP 8918680 A JP8918680 A JP 8918680A JP 8918680 A JP8918680 A JP 8918680A JP S5715152 A JPS5715152 A JP S5715152A
Authority
JP
Japan
Prior art keywords
magnetic fluid
side member
lubricant
rotation side
sealing
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.)
Granted
Application number
JP8918680A
Other languages
Japanese (ja)
Other versions
JPS6313046B2 (en
Inventor
Kyosaburo Furumura
Shigeki Matsunaga
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.)
NSK Ltd
Original Assignee
NSK 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 NSK Ltd filed Critical NSK Ltd
Priority to JP8918680A priority Critical patent/JPS5715152A/en
Publication of JPS5715152A publication Critical patent/JPS5715152A/en
Publication of JPS6313046B2 publication Critical patent/JPS6313046B2/ja
Granted 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/66—Special parts or details in view of lubrication
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings
    • F16C33/76—Sealings of ball or roller bearings
    • F16C33/762—Sealings of ball or roller bearings by means of a fluid
    • F16C33/763—Sealings of ball or roller bearings by means of a fluid retained in the sealing gap
    • F16C33/765—Sealings of ball or roller bearings by means of a fluid retained in the sealing gap by a magnetic field
    • 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

Landscapes

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

Abstract

PURPOSE:To improve both sealing and lubrication performance by putting between a fixed side member and a rotation side member a nonmagnetic lubricant not mutually soluble with the magnetic fluid existing between magnetic fluid seals and a rotation side member. CONSTITUTION:As for the constitution in which a rotation side member 12 is arranged on the inner peripheral side of a pair of magnetic fluid seals 15 and 16 fixed on a fixed side member 11, magnetic fluid is put into the seal gap 25 between the magnetic fluid seal 15 and the rotation side member 12, and nonmagnetic lubricant 26 not mutually soluble the solvent existing in the seal gap 25 is put into a pair of magnetic fluid seals 15 and 16. As the lubricant 26 is not mutually soluble with the magnetic fluid in the seal gap 25, the lubricant 26 having good lubrication performance and the magnetic fluid having good sealing performance can be selected independently, so both sealing lubrication performance can be improved at the same time.
JP8918680A 1980-07-02 1980-07-02 Sealing apparatus Granted JPS5715152A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8918680A JPS5715152A (en) 1980-07-02 1980-07-02 Sealing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8918680A JPS5715152A (en) 1980-07-02 1980-07-02 Sealing apparatus

Publications (2)

Publication Number Publication Date
JPS5715152A true JPS5715152A (en) 1982-01-26
JPS6313046B2 JPS6313046B2 (en) 1988-03-23

Family

ID=13963696

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8918680A Granted JPS5715152A (en) 1980-07-02 1980-07-02 Sealing apparatus

Country Status (1)

Country Link
JP (1) JPS5715152A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6030821A (en) * 1983-07-28 1985-02-16 Ebara Corp Dynamic pressure bearing
JPS60205018A (en) * 1984-03-28 1985-10-16 Agency Of Ind Science & Technol Roller bearing device of magnetic fluid seal type

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB783881A (en) * 1954-03-05 1957-10-02 Vickers Electrical Co Ltd Improvements relating to shaft and like seals
JPS5551124A (en) * 1978-10-03 1980-04-14 Nippon Telegr & Teleph Corp <Ntt> Bearing device
JPS5557761A (en) * 1978-10-26 1980-04-28 Fujitsu Ltd Vacuum seal
JPS5618166A (en) * 1979-07-18 1981-02-20 Matsushita Electric Ind Co Ltd Sealing mechanism

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB783881A (en) * 1954-03-05 1957-10-02 Vickers Electrical Co Ltd Improvements relating to shaft and like seals
JPS5551124A (en) * 1978-10-03 1980-04-14 Nippon Telegr & Teleph Corp <Ntt> Bearing device
JPS5557761A (en) * 1978-10-26 1980-04-28 Fujitsu Ltd Vacuum seal
JPS5618166A (en) * 1979-07-18 1981-02-20 Matsushita Electric Ind Co Ltd Sealing mechanism

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6030821A (en) * 1983-07-28 1985-02-16 Ebara Corp Dynamic pressure bearing
JPS60205018A (en) * 1984-03-28 1985-10-16 Agency Of Ind Science & Technol Roller bearing device of magnetic fluid seal type
JPH0470489B2 (en) * 1984-03-28 1992-11-11 Kogyo Gijutsuin

Also Published As

Publication number Publication date
JPS6313046B2 (en) 1988-03-23

Similar Documents

Publication Publication Date Title
GB1494595A (en) Mechanical seal with pressurised lubrication pockets
JPS5527550A (en) Bearing device
GB1533689A (en) Bearing bracket
ES456133A1 (en) Device for temporarily sealing and supporting shafts
ES8101231A1 (en) Seal for coaxial rotating parts.
JPS5715152A (en) Sealing apparatus
JPS5430347A (en) Magnetic fluid sealing equipment
JPS57167523A (en) Device for clutch
JPS5676722A (en) Sealed antifriction bearing
JPS55132442A (en) Roller chain
JPS5360411A (en) Oil seal equipment in rotary piston engine
GB1491391A (en) Engine having an oil cooled seal
JPS57157865A (en) Mechanical seal
JPS51149807A (en) A method and apparatus for preventing leakage in moving grate machines
JPS524948A (en) Guide vane seal apparatus for the fluid machine
JPS5774825A (en) Rotary head assembly
JPS5697664A (en) Seal
JPS5590761A (en) Fluid bearing apparatus and assembly thereof
JPS532865A (en) Movable device
GB2061410B (en) Fluid seal with lubricated sealing surfaces
JPS5285608A (en) Shaft seal device for use in turbo machine
JPS5578862A (en) Magnetic fluid seal
JPS53132648A (en) Rotary plug seal
JPS5565767A (en) Fluidic device and its assembling method
JPS52156210A (en) Oil sealing device for rotary piston engine