DE69911634D1 - Drehbewegungsdurchführung - Google Patents

Drehbewegungsdurchführung

Info

Publication number
DE69911634D1
DE69911634D1 DE69911634T DE69911634T DE69911634D1 DE 69911634 D1 DE69911634 D1 DE 69911634D1 DE 69911634 T DE69911634 T DE 69911634T DE 69911634 T DE69911634 T DE 69911634T DE 69911634 D1 DE69911634 D1 DE 69911634D1
Authority
DE
Germany
Prior art keywords
shaft
pole piece
rotary motion
rotation procedure
ferrofluid
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
DE69911634T
Other languages
English (en)
Other versions
DE69911634T2 (de
Inventor
G Mahoney
Walter Helgeland
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 USA Inc
Original Assignee
Rigaku USA Inc
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 USA Inc filed Critical Rigaku USA Inc
Publication of DE69911634D1 publication Critical patent/DE69911634D1/de
Application granted granted Critical
Publication of DE69911634T2 publication Critical patent/DE69911634T2/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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
  • Joints Allowing Movement (AREA)
  • Taps Or Cocks (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Switches With Compound Operations (AREA)
  • Gasket Seals (AREA)
DE69911634T 1998-11-03 1999-10-28 Drehbewegungsdurchführung Expired - Lifetime DE69911634T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/185,432 US6199867B1 (en) 1997-09-30 1998-11-03 Rotary motion feedthrough device
US185432 1998-11-03
PCT/US1999/025286 WO2000026564A1 (en) 1998-11-03 1999-10-28 Rotary motion feedthrough device

Publications (2)

Publication Number Publication Date
DE69911634D1 true DE69911634D1 (de) 2003-10-30
DE69911634T2 DE69911634T2 (de) 2004-06-24

Family

ID=22680948

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69911634T Expired - Lifetime DE69911634T2 (de) 1998-11-03 1999-10-28 Drehbewegungsdurchführung

Country Status (7)

Country Link
US (1) US6199867B1 (de)
EP (1) EP1127234B1 (de)
JP (1) JP2003523490A (de)
AT (1) ATE250735T1 (de)
AU (1) AU1327500A (de)
DE (1) DE69911634T2 (de)
WO (1) WO2000026564A1 (de)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10042962C1 (de) * 2000-08-31 2002-05-02 Siemens Ag Magnetlager zur Lagerung einer drehbaren Welle unter Verwendung von Hoch-T¶c¶-Supraleitermaterial
US8397883B2 (en) * 2001-10-25 2013-03-19 Lord Corporation Brake with field responsive material
US6899338B2 (en) * 2003-03-06 2005-05-31 Ferrotec Usa Corporation Ferrofluid seal incorporating multiple types of ferrofluid
KR100973666B1 (ko) * 2003-06-17 2010-08-03 주성엔지니어링(주) 원자층증착장치의 가스밸브 어셈블리
US7129609B1 (en) 2005-08-30 2006-10-31 Ferrolabs, Inc. Magneto-fluidic seal with wide working temperature range
DE102005042451B4 (de) * 2005-09-06 2007-07-26 Vacuubrand Gmbh + Co Kg Vakuumpumpvorrichtung
WO2008080078A2 (en) * 2006-12-22 2008-07-03 Lord Corporation Operator interface controllable brake with field responsive material
US20080234908A1 (en) * 2007-03-07 2008-09-25 St Clair Kenneth A Operator input device for controlling a vehicle operation
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
JP5346945B2 (ja) * 2007-10-18 2013-11-20 リガク イノベイティブ テクノロジーズ インコーポレイテッド 流体量の精密制御を伴う磁性流体シールの製造方法
JP5568556B2 (ja) * 2008-07-30 2014-08-06 リガク イノベイティブ テクノロジーズ インコーポレイテッド 分路要素を有する磁性流体封止装置
CA2739789C (en) * 2008-10-09 2016-08-02 Rigaku Innovative Technologies, Inc. Magnetic fluid seal with centering of bearing and shaft by compressible member
US8013696B2 (en) * 2008-10-14 2011-09-06 Nexteer (Beijing) Technology Co., Ltd. Magnetic apparatus and method of manufacturing the magnetic apparatus
US20100128848A1 (en) * 2008-11-21 2010-05-27 General Electric Company X-ray tube having liquid lubricated bearings and liquid cooled target
CN101737497B (zh) * 2010-02-11 2011-08-03 北京交通大学 一种磁性液体与三斜口填料环组合式往复轴密封装置
EP2672152B1 (de) * 2011-02-03 2017-10-11 Eagle Industry Co., Ltd. Magnetfluiddichtung
DE102011120481A1 (de) * 2011-12-08 2013-06-13 Bombardier Transportation Gmbh Schiebetrittanordnung für ein Schienenfahrzeug
CN103847756B (zh) * 2012-12-07 2017-04-19 庞巴迪运输有限公司 用于轨道车辆的可伸缩式台阶装置
CN106461089B (zh) * 2014-05-13 2019-01-15 日本伊格尔博格曼有限公司 磁性流体密封的组装方法及磁性流体密封
CN106321854B (zh) * 2016-10-21 2018-02-16 北京交通大学 永磁体径向同向充磁的磁性液体密封装置
CN112178203B (zh) 2020-10-21 2021-05-14 清华大学 磁性液体密封装置

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3734578A (en) 1970-01-23 1973-05-22 Ferrofluidics Corp Magnetic fluid pneumatic bearings
US3612630A (en) 1970-01-23 1971-10-12 Ferrofluidics Corp Bearing arrangement with magnetic fluid defining bearing pads
US3620584A (en) 1970-05-25 1971-11-16 Ferrofluidics Corp Magnetic fluid seals
US3917538A (en) 1973-01-17 1975-11-04 Ferrofluidics Corp Ferrofluid compositions and process of making same
US3810055A (en) 1973-05-21 1974-05-07 T Wright Magnetic holding device
DE2444843C2 (de) 1973-10-01 1984-03-22 Novatome, 92350 Le-Plessis-Robinson, Hauts-de-Seine Spiralförmige Drehdichtung mit einem Fluid zur Abdichtung einer rotierenden Welle
US4054293A (en) 1976-12-27 1977-10-18 Borg-Warner Corporation Hybrid magnetic fluid shaft seals
US4281724A (en) 1979-08-24 1981-08-04 Smith International, Inc. Drilling head
US4309040A (en) 1980-06-03 1982-01-05 Ferrofluidics Corporation Linear seal apparatus
JPS5950275A (ja) 1982-09-16 1984-03-23 Rigaku Keisoku Kk 磁性流体軸封装置
US4527805A (en) 1984-05-03 1985-07-09 Ferrofluidics Corporation High-pressure ferrofluid seal apparatus
US4502700A (en) 1984-05-03 1985-03-05 Ferrofluidics Corporation Ferrofluid linear seal apparatus
NL8801925A (nl) * 1988-08-02 1990-03-01 Skf Ind Trading & Dev Afdichtsamenstel met een magnetische vloeistof.
JP2522995B2 (ja) 1988-08-10 1996-08-07 日本ピラー工業株式会社 磁性流体シ―ル装置
US4865334A (en) 1988-11-04 1989-09-12 Ferrofluidics Corporation Long-life multi-stage ferrofluid seals incorporating a ferrofluid reservoir
US4995622A (en) 1989-02-07 1991-02-26 Nippon Pillar Packing Co., Ltd. Magnetic fluid seal device
JPH03172617A (ja) 1989-11-29 1991-07-26 Toshiba Corp 軸受装置
US5007513A (en) 1990-04-03 1991-04-16 Lord Corporation Electroactive fluid torque transmission apparatus with ferrofluid seal
US5554900A (en) 1994-02-04 1996-09-10 Schlenker Enterprises Ltd. Motor including embedded permanent-magnet rotor
US5826885A (en) 1996-10-02 1998-10-27 Rigaku/Usa, Inc. Magnetic fluid sealing device
US5975536A (en) 1997-09-30 1999-11-02 Rigaku/Usa, Inc. Rotary motion feedthrough with rotating magnet system
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

Also Published As

Publication number Publication date
WO2000026564A1 (en) 2000-05-11
EP1127234A1 (de) 2001-08-29
EP1127234B1 (de) 2003-09-24
US6199867B1 (en) 2001-03-13
AU1327500A (en) 2000-05-22
DE69911634T2 (de) 2004-06-24
ATE250735T1 (de) 2003-10-15
JP2003523490A (ja) 2003-08-05

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition