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FR2507730B1 - MAGNETIC FLUID SEALING DEVICE - Google Patents

MAGNETIC FLUID SEALING DEVICE

Info

Publication number
FR2507730B1
FR2507730B1 FR8210391A FR8210391A FR2507730B1 FR 2507730 B1 FR2507730 B1 FR 2507730B1 FR 8210391 A FR8210391 A FR 8210391A FR 8210391 A FR8210391 A FR 8210391A FR 2507730 B1 FR2507730 B1 FR 2507730B1
Authority
FR
France
Prior art keywords
sealing device
magnetic fluid
fluid sealing
magnetic
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.)
Expired
Application number
FR8210391A
Other languages
French (fr)
Other versions
FR2507730A1 (en
Inventor
Masakatsu Kitada
Kimio Satoh
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.)
Rigaku Denki Co Ltd
Original Assignee
Rigaku Denki 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 Rigaku Denki Co Ltd filed Critical Rigaku Denki Co Ltd
Publication of FR2507730A1 publication Critical patent/FR2507730A1/en
Application granted granted Critical
Publication of FR2507730B1 publication Critical patent/FR2507730B1/en
Expired 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)
FR8210391A 1981-06-15 1982-06-15 MAGNETIC FLUID SEALING DEVICE Expired FR2507730B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56090950A JPS57208358A (en) 1981-06-15 1981-06-15 Shaft sealing device using magnetic fluid

Publications (2)

Publication Number Publication Date
FR2507730A1 FR2507730A1 (en) 1982-12-17
FR2507730B1 true FR2507730B1 (en) 1985-12-13

Family

ID=14012748

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8210391A Expired FR2507730B1 (en) 1981-06-15 1982-06-15 MAGNETIC FLUID SEALING DEVICE

Country Status (4)

Country Link
JP (1) JPS57208358A (en)
DE (1) DE3222293A1 (en)
FR (1) FR2507730B1 (en)
GB (1) GB2104165B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61139468A (en) * 1984-12-12 1986-06-26 Nec Corp Data output system
GB2236363B (en) * 1986-06-24 1991-07-31 Papst Motoren Gmbh & Co Kg Magnetic fluid seal apparatus
CH676740A5 (en) * 1986-06-24 1991-02-28 Papst Motoren Gmbh & Co Kg
DE3622306A1 (en) * 1986-07-03 1988-01-07 Hommelwerke Gmbh Length measurement sensor, especially for sensing the surface of a workpiece
NL8902086A (en) * 1989-08-17 1991-03-18 Skf Ind Trading & Dev SEALING AND SLIDING BEARING ASSEMBLY WITH A MAGNETIC LIQUID.
JP3252090B2 (en) * 1996-07-10 2002-01-28 キヤノン株式会社 Developing device
CN103115152B (en) * 2013-01-30 2015-05-06 北京交通大学 Magnetic fluid and maze alternated type combined sealing
CN103234049B (en) * 2013-04-12 2015-10-28 北京交通大学 Improve the sealing reliability of Split magnetic liquid sealing device and the method in life-span
CN108980361A (en) * 2018-08-13 2018-12-11 广西科技大学 A kind of strong magnetic-assemblying type magnetic fluid sealing structure
CN112648381B (en) * 2020-12-30 2021-12-07 清华大学 Magnetic liquid sealing device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US783881A (en) * 1904-12-09 1905-02-28 Samuel Mayper Hose-supporter.
GB783881A (en) * 1954-03-05 1957-10-02 Vickers Electrical Co Ltd Improvements relating to shaft and like seals
US3620584A (en) * 1970-05-25 1971-11-16 Ferrofluidics Corp Magnetic fluid seals
JPS519853A (en) * 1974-07-03 1976-01-26 Suwa Seikosha Kk EKISHOHAIKOYOSUMAKUNIOKERU BUNSHIHOKONO KET SUTEIHOHO
SU742657A1 (en) * 1978-03-28 1980-06-25 Предприятие П/Я Г-4213 Magnetic-liquid seal
JPS5530562A (en) * 1978-08-25 1980-03-04 Nippon Telegr & Teleph Corp <Ntt> Magnetic fluid feeder

Also Published As

Publication number Publication date
FR2507730A1 (en) 1982-12-17
JPS6143588B2 (en) 1986-09-29
GB2104165B (en) 1985-08-21
JPS57208358A (en) 1982-12-21
GB2104165A (en) 1983-03-02
DE3222293C2 (en) 1987-12-10
DE3222293A1 (en) 1982-12-30

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