DE3671790D1 - Dichtungsvorrichtung mit magnetischer fluessigkeit. - Google Patents

Dichtungsvorrichtung mit magnetischer fluessigkeit.

Info

Publication number
DE3671790D1
DE3671790D1 DE8686109634T DE3671790T DE3671790D1 DE 3671790 D1 DE3671790 D1 DE 3671790D1 DE 8686109634 T DE8686109634 T DE 8686109634T DE 3671790 T DE3671790 T DE 3671790T DE 3671790 D1 DE3671790 D1 DE 3671790D1
Authority
DE
Germany
Prior art keywords
sealing device
magnetic liquid
magnetic
liquid
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 - Lifetime
Application number
DE8686109634T
Other languages
English (en)
Inventor
Muneo Mizumoto
Hiroshi Inouye
Hiroyuki Kitsunai
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
Priority claimed from JP60161818A external-priority patent/JPS6224078A/ja
Priority claimed from JP61100945A external-priority patent/JPS62258268A/ja
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Application granted granted Critical
Publication of DE3671790D1 publication Critical patent/DE3671790D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y15/00—Nanotechnology for interacting, sensing or actuating, e.g. quantum dots as markers in protein assays or molecular motors

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Nanotechnology (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
DE8686109634T 1985-07-24 1986-07-14 Dichtungsvorrichtung mit magnetischer fluessigkeit. Expired - Lifetime DE3671790D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP60161818A JPS6224078A (ja) 1985-07-24 1985-07-24 磁性流体シ−ル装置
JP61100945A JPS62258268A (ja) 1986-05-02 1986-05-02 磁性流体シ−ル装置

Publications (1)

Publication Number Publication Date
DE3671790D1 true DE3671790D1 (de) 1990-07-12

Family

ID=26441880

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686109634T Expired - Lifetime DE3671790D1 (de) 1985-07-24 1986-07-14 Dichtungsvorrichtung mit magnetischer fluessigkeit.

Country Status (3)

Country Link
US (1) US4708350A (de)
EP (1) EP0210527B1 (de)
DE (1) DE3671790D1 (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3644697C1 (de) * 1986-12-30 1988-02-11 Manfred Dipl-Ing Diesing Dichtungsvorrichtung mit Ferrofluid
DE3713567C1 (de) * 1987-04-23 1987-12-03 Iris Diesing Mehrstufige Dichtungsvorrichtung mit Ferrofluid
NL8902086A (nl) * 1989-08-17 1991-03-18 Skf Ind Trading & Dev Afdicht- en glijlagersamenstel met een magnetische vloeistof.
US5134331A (en) * 1990-05-31 1992-07-28 Nippon Densan Corporation Spindle motor
US6029978A (en) * 1996-09-17 2000-02-29 Seagate Technology, Inc. Grounding and conductivity improvement for ferrofluid seals
AU2001274584A1 (en) * 2000-06-21 2002-01-02 Nok Corporation Magnetic fluid sealer and method for mounting magnetic fluid sealer
WO2002095271A1 (fr) * 2001-05-22 2002-11-28 Nok Corporation Dispositif de joint d'etancheite magnetique
US7129609B1 (en) * 2005-08-30 2006-10-31 Ferrolabs, Inc. Magneto-fluidic seal with wide working temperature range
DE102006051992B3 (de) * 2006-11-03 2008-01-31 Dtg - Development & Technology Gmbh Magnetflüssigkeitsdichtung zur Abdichtung einer Welle oder Achse gegenüber einer Nabe
WO2012086320A1 (ja) * 2010-12-23 2012-06-28 イーグル工業株式会社 磁性流体を利用したシール装置
CN102537366B (zh) * 2012-01-05 2014-07-09 北京交通大学 分瓣式磁性液体密封装置的密封方法
KR101511280B1 (ko) * 2013-07-22 2015-04-10 한국전기연구원 실링 장치
CN114635925B (zh) * 2022-02-23 2024-02-13 清华大学 基于表面织构的磁性液体密封装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA612801A (en) * 1961-01-17 Stevenson Robert Rotary seal
US2855639A (en) * 1951-04-23 1958-10-14 Jervis Corp Magnetic gasket and method and apparatus for making same
US4171818A (en) * 1977-04-04 1979-10-23 Ferrofluidics Corporation Dynamic lip seal using ferrofluids as sealant/lubricant
SU815382A1 (ru) * 1978-09-11 1981-03-23 Предприятие П/Я А-3780 Уплотнение разъемного соединени
SU823720A1 (ru) * 1979-07-20 1981-04-23 Предприятие П/Я В-8339 Магнитожидкостное уплотнение
JPS5857812B2 (ja) * 1979-07-26 1983-12-22 松下電器産業株式会社 磁気記録再生装置の回転ヘッドアセンブリ
JPS5997368A (ja) * 1982-11-22 1984-06-05 Tokyo Keiso Kk 軸受部のシ−ル構造
US4489950A (en) * 1983-05-25 1984-12-25 Ferrofluidics Corporation Ferrofluid-pole-piece-magnet apparatus
JPS6040871A (ja) * 1983-08-15 1985-03-04 Nippon Telegr & Teleph Corp <Ntt> 磁性流体を用いたシ−ル機構
US4526382A (en) * 1984-05-03 1985-07-02 Ferrofluidics Corporation Radially polarized multiple-stage ferrofluid seal apparatus

Also Published As

Publication number Publication date
EP0210527A1 (de) 1987-02-04
EP0210527B1 (de) 1990-06-06
US4708350A (en) 1987-11-24

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee