JPS54135963A - Magnetic liquid seal device - Google Patents

Magnetic liquid seal device

Info

Publication number
JPS54135963A
JPS54135963A JP4392078A JP4392078A JPS54135963A JP S54135963 A JPS54135963 A JP S54135963A JP 4392078 A JP4392078 A JP 4392078A JP 4392078 A JP4392078 A JP 4392078A JP S54135963 A JPS54135963 A JP S54135963A
Authority
JP
Japan
Prior art keywords
ring
magnetic liquid
projection
chamber
pressure
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
JP4392078A
Other languages
Japanese (ja)
Inventor
Ko Taketomi
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 JP4392078A priority Critical patent/JPS54135963A/en
Publication of JPS54135963A publication Critical patent/JPS54135963A/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

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 seal rationally and to improve the permissible pressure of max. axis seal, by means of giving the pressure difference of p/n of the axis seal at the space separated by each ring micro-projections, where the number of the ring microprojection is specified as n. CONSTITUTION:Magnetic liquid 14 is concentrated on the top of ring micro-projections 12a by a bar magnet 15, by means of interposing the magnetic liquid 14 at the inner circumferent surface facing to the ring micro-projection 12a which were arranged on the outer circumference of a rotation axis 12 of a magnetic body of a solid ring pole block 13. Gases of pressures of 3p/4, sp/4, and p/4 are respectively so distributed as to give an allotted pressure difference p/4 from a partial pressure chamber 16 to A chamber, B chamber and C chamber between the adjacent ring micro-projection 12a, where the number of the projections is specified as 4, and the axis seal against atomosphere is specified as p. Accordingly, the pressure differences corresponding to each ring micro-projection 12a of magnetic liquid 14 become to p/4 respectively, and magnetic liquid 14 of all ring micro-projection 12a takes charge of a portion of axis seal, and can increase the max. axis seal pressure.
JP4392078A 1978-04-14 1978-04-14 Magnetic liquid seal device Pending JPS54135963A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4392078A JPS54135963A (en) 1978-04-14 1978-04-14 Magnetic liquid seal device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4392078A JPS54135963A (en) 1978-04-14 1978-04-14 Magnetic liquid seal device

Publications (1)

Publication Number Publication Date
JPS54135963A true JPS54135963A (en) 1979-10-22

Family

ID=12677140

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4392078A Pending JPS54135963A (en) 1978-04-14 1978-04-14 Magnetic liquid seal device

Country Status (1)

Country Link
JP (1) JPS54135963A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60155064A (en) * 1984-01-24 1985-08-14 Mitsubishi Electric Corp Magnetic-fluid seal device
WO2005047741A3 (en) * 2003-10-29 2005-08-11 Allweiler Ag Device and method for guiding at least two flow media
JP2006271478A (en) * 2005-03-28 2006-10-12 Citizen Watch Co Ltd Band-shaped personal adornment
US7674089B2 (en) 2003-10-29 2010-03-09 Allweiler Ag Device and method for guiding at least two flow media
WO2020154912A1 (en) * 2019-01-29 2020-08-06 清华大学 Magnetic liquid rotating and sealing apparatus applicable to high rotational speed condition

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60155064A (en) * 1984-01-24 1985-08-14 Mitsubishi Electric Corp Magnetic-fluid seal device
WO2005047741A3 (en) * 2003-10-29 2005-08-11 Allweiler Ag Device and method for guiding at least two flow media
US7674089B2 (en) 2003-10-29 2010-03-09 Allweiler Ag Device and method for guiding at least two flow media
JP2006271478A (en) * 2005-03-28 2006-10-12 Citizen Watch Co Ltd Band-shaped personal adornment
WO2020154912A1 (en) * 2019-01-29 2020-08-06 清华大学 Magnetic liquid rotating and sealing apparatus applicable to high rotational speed condition

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