JP4885490B2 - 磁性流体シール装置 - Google Patents

磁性流体シール装置 Download PDF

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Publication number
JP4885490B2
JP4885490B2 JP2005191200A JP2005191200A JP4885490B2 JP 4885490 B2 JP4885490 B2 JP 4885490B2 JP 2005191200 A JP2005191200 A JP 2005191200A JP 2005191200 A JP2005191200 A JP 2005191200A JP 4885490 B2 JP4885490 B2 JP 4885490B2
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JP
Japan
Prior art keywords
magnetic
rotating shaft
magnet
peripheral surface
magnetic fluid
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 - Fee Related
Application number
JP2005191200A
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English (en)
Japanese (ja)
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JP2007010030A5 (enExample
JP2007010030A (ja
Inventor
靖幸 嶋▲崎▼
皖史 秋山
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 Corp
Original Assignee
Rigaku Corp
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 Corp filed Critical Rigaku Corp
Priority to JP2005191200A priority Critical patent/JP4885490B2/ja
Priority to US11/988,202 priority patent/US7950672B2/en
Priority to DE602006017370T priority patent/DE602006017370D1/de
Priority to EP06780821A priority patent/EP1898133B1/en
Priority to PCT/JP2006/313445 priority patent/WO2007004690A1/ja
Publication of JP2007010030A publication Critical patent/JP2007010030A/ja
Publication of JP2007010030A5 publication Critical patent/JP2007010030A5/ja
Application granted granted Critical
Publication of JP4885490B2 publication Critical patent/JP4885490B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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

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  • 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)
JP2005191200A 2005-06-30 2005-06-30 磁性流体シール装置 Expired - Fee Related JP4885490B2 (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2005191200A JP4885490B2 (ja) 2005-06-30 2005-06-30 磁性流体シール装置
US11/988,202 US7950672B2 (en) 2005-06-30 2006-06-29 Magnetic fluid sealing device
DE602006017370T DE602006017370D1 (de) 2005-06-30 2006-06-29 Magnetische fluiddichtungsvorrichtung
EP06780821A EP1898133B1 (en) 2005-06-30 2006-06-29 Magnetic fluid sealing device
PCT/JP2006/313445 WO2007004690A1 (ja) 2005-06-30 2006-06-29 磁性流体シール装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005191200A JP4885490B2 (ja) 2005-06-30 2005-06-30 磁性流体シール装置

Publications (3)

Publication Number Publication Date
JP2007010030A JP2007010030A (ja) 2007-01-18
JP2007010030A5 JP2007010030A5 (enExample) 2008-08-14
JP4885490B2 true JP4885490B2 (ja) 2012-02-29

Family

ID=37604548

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005191200A Expired - Fee Related JP4885490B2 (ja) 2005-06-30 2005-06-30 磁性流体シール装置

Country Status (5)

Country Link
US (1) US7950672B2 (enExample)
EP (1) EP1898133B1 (enExample)
JP (1) JP4885490B2 (enExample)
DE (1) DE602006017370D1 (enExample)
WO (1) WO2007004690A1 (enExample)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4885490B2 (ja) * 2005-06-30 2012-02-29 株式会社リガク 磁性流体シール装置
CN101377985B (zh) * 2007-08-31 2012-08-22 湖南维格磁流体股份有限公司 中高压电力开关设备用动密封装置
US8720900B2 (en) 2008-07-30 2014-05-13 Rigaku Innovative Technologies, Inc. Magnetic fluid seal with shunt element
JP5024965B2 (ja) * 2008-09-09 2012-09-12 株式会社リガク 磁性流体シール装置
EP2647857A1 (en) 2008-10-09 2013-10-09 Rigaku Innovative Technologies Inc. Magnetic fluid seal with centering of bearing and shaft by compressible member
JPWO2011036920A1 (ja) * 2009-09-24 2013-02-14 イーグル工業株式会社 シール装置
EP2672152B1 (en) * 2011-02-03 2017-10-11 Eagle Industry Co., Ltd. Magnetic fluid seal
US9245783B2 (en) * 2013-05-24 2016-01-26 Novellus Systems, Inc. Vacuum robot with linear translation carriage
WO2015094274A1 (en) 2013-12-19 2015-06-25 Halliburton Energy Services, Inc. Intervention tool for delivering self-assembling repair fluid
CA2927574C (en) 2013-12-19 2018-03-20 Halliburton Energy Services, Inc. Self-assembling packer
WO2015102563A1 (en) 2013-12-30 2015-07-09 Halliburtion Energy Services, Inc. Ferrofluid tool for influencing electrically conductive paths in a wellbore
EP3039223A1 (en) 2013-12-30 2016-07-06 Halliburton Energy Services, Inc. Ferrofluid tool for isolation of objects in a wellbore
EP3047099A1 (en) 2013-12-30 2016-07-27 Halliburton Energy Services, Inc. Ferrofluid tool for enhancing magnetic fields in a wellbore
MX2016006840A (es) 2013-12-30 2016-12-16 Halliburton Energy Services Inc Herramienta de ferrofluido para brindar estructuras modificables en pozos de sondeo.
US10024437B2 (en) * 2014-05-13 2018-07-17 EagleBurgmann Japan Co., Ltd. Assembly method of magnetic fluid seal and magnetic fluid seal
US10876378B2 (en) 2015-06-30 2020-12-29 Halliburton Energy Services, Inc. Outflow control device for creating a packer
CN105822768B (zh) * 2016-05-25 2017-12-05 广西科技大学 一种串联型端面式磁性流体密封装置
CN107906209A (zh) * 2017-12-13 2018-04-13 广西科技大学 一种用于同心双轴的磁流体密封结构

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4293137A (en) * 1978-12-11 1981-10-06 Ezekiel Frederick D Magnetic liquid shaft sealing
JPS5950275A (ja) * 1982-09-16 1984-03-23 Rigaku Keisoku Kk 磁性流体軸封装置
US4407508A (en) * 1982-12-16 1983-10-04 Ferrofluidics Corporation Single-pole-piece ferrofluid seal apparatus and exclusion seal system
US4527805A (en) * 1984-05-03 1985-07-09 Ferrofluidics Corporation High-pressure ferrofluid seal apparatus
US4526382A (en) * 1984-05-03 1985-07-02 Ferrofluidics Corporation Radially polarized multiple-stage ferrofluid seal apparatus
US4545587A (en) * 1984-11-20 1985-10-08 Ferrofluidics Corporation Coaxial, multiple-shaft ferrofluid seal apparatus
DE3575594D1 (de) * 1984-11-20 1990-03-01 Ferrofluidics Corp Mittels ferrofluid dichtende einrichtung fuer mehrere koaxiale wellen.
US4575102A (en) * 1984-11-20 1986-03-11 Ferrofluidics Corporation Coaxial, multiple-shaft ferrofluid seal apparatus
JPS6220268A (ja) * 1985-07-17 1987-01-28 富士通株式会社 角形コネクタ
JPS6220268U (enExample) * 1985-07-22 1987-02-06
JPS62278377A (ja) * 1986-05-27 1987-12-03 Mitsubishi Electric Corp 磁性流体シ−ル装置
US4844138A (en) * 1986-09-01 1989-07-04 Kabushiki Kaisha Tokai Rika Denki Seisakusho Automobile tire pneumatic pressure controlling apparatus
DE3922356A1 (de) * 1989-07-07 1991-01-17 Freudenberg Carl Fa Ferrofluiddichtung fuer eine welle
US5340122A (en) * 1992-06-22 1994-08-23 Ferrofluidics Corporation Differentially-pumped ferrofluidic seal
JPH0720469A (ja) 1993-06-29 1995-01-24 Tokuo Koma 液晶表示装置
JP2597618Y2 (ja) * 1993-09-24 1999-07-12 エヌオーケー株式会社 磁性流体シール装置
US5826885A (en) * 1996-10-02 1998-10-27 Rigaku/Usa, Inc. Magnetic fluid sealing device
US5799951A (en) * 1996-11-21 1998-09-01 Varian Associates, Inc. Rotating sealing device
JPH10220596A (ja) 1997-02-05 1998-08-21 Nok Corp 磁性流体シール装置
JP4073064B2 (ja) * 1997-12-02 2008-04-09 株式会社リガク 耐磁場磁性流体シール装置
CN1245650C (zh) * 2000-06-21 2006-03-15 Nok株式会社 磁性流体密封装置和磁性流体密封装置的安装方法
JP4885490B2 (ja) * 2005-06-30 2012-02-29 株式会社リガク 磁性流体シール装置
US7129609B1 (en) * 2005-08-30 2006-10-31 Ferrolabs, Inc. Magneto-fluidic seal with wide working temperature range

Also Published As

Publication number Publication date
WO2007004690A1 (ja) 2007-01-11
EP1898133A1 (en) 2008-03-12
US20090115137A1 (en) 2009-05-07
JP2007010030A (ja) 2007-01-18
EP1898133B1 (en) 2010-10-06
EP1898133A4 (en) 2008-11-26
DE602006017370D1 (de) 2010-11-18
US7950672B2 (en) 2011-05-31

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