WO2004044931A3 - Improved mr device - Google Patents

Improved mr device Download PDF

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Publication number
WO2004044931A3
WO2004044931A3 PCT/US2003/035605 US0335605W WO2004044931A3 WO 2004044931 A3 WO2004044931 A3 WO 2004044931A3 US 0335605 W US0335605 W US 0335605W WO 2004044931 A3 WO2004044931 A3 WO 2004044931A3
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WO
WIPO (PCT)
Prior art keywords
devices
particles
magnetically
fraction
volume
Prior art date
Application number
PCT/US2003/035605
Other languages
French (fr)
Other versions
WO2004044931A2 (en
Inventor
K Andrew Kintz
Teresa L Forehand
Original Assignee
Lord 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
Priority claimed from US10/288,769 external-priority patent/US6886819B2/en
Priority claimed from US10/289,071 external-priority patent/US7087184B2/en
Application filed by Lord Corp filed Critical Lord Corp
Priority to EP03796366A priority Critical patent/EP1559119B1/en
Priority to JP2004551901A priority patent/JP2006505957A/en
Priority to DE60316461T priority patent/DE60316461T2/en
Publication of WO2004044931A2 publication Critical patent/WO2004044931A2/en
Publication of WO2004044931A3 publication Critical patent/WO2004044931A3/en

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    • C10M171/00—Lubricating compositions characterised by purely physical criteria, e.g. containing as base-material, thickener or additive, ingredients which are characterised exclusively by their numerically specified physical properties, i.e. containing ingredients which are physically well-defined but for which the chemical nature is either unspecified or only very vaguely indicated
    • C10M171/001—Electrorheological fluids; smart fluids
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/44—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of magnetic liquids, e.g. ferrofluids
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/44—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of magnetic liquids, e.g. ferrofluids
    • H01F1/447—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of magnetic liquids, e.g. ferrofluids characterised by magnetoviscosity, e.g. magnetorheological, magnetothixotropic, magnetodilatant liquids
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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Soft Magnetic Materials (AREA)
  • Lubricants (AREA)
  • Fluid-Damping Devices (AREA)

Abstract

Magnetorheological devices, including damping devices, rotary devices, and haptic systems constructed with said devices are disclosed. The devices contain dry magnetically-responsive particles, or MR fluids containing the magnetically responsive particles. The magnetically soft particles characterized by a single process yield population of atomized particles having a cumulative 10 %, 50 % and 90 % by volume, fraction within specified size, i.e., D10 of from 2 up to and including a D10 of 5 µm, a D50 8 µm up to and including a D50 of 15 µm, a D90 of 25 µm up to and including a D90 of 40 µm, and characterized by a least squares regression of log normal particles size against cumulative volume % fraction of greater than or equal to 0.77.
PCT/US2003/035605 2002-11-06 2003-11-06 Improved mr device WO2004044931A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP03796366A EP1559119B1 (en) 2002-11-06 2003-11-06 Improved mr device
JP2004551901A JP2006505957A (en) 2002-11-06 2003-11-06 Improved MR device
DE60316461T DE60316461T2 (en) 2002-11-06 2003-11-06 IMPROVED MAGNETORHEOLOGICAL DEVICE

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US10/288,769 US6886819B2 (en) 2002-11-06 2002-11-06 MR fluid for increasing the output of a magnetorheological fluid damper
US10/289,071 2002-11-06
US10/288,769 2002-11-06
US10/289,071 US7087184B2 (en) 2002-11-06 2002-11-06 MR fluid for increasing the output of a magnetorheological fluid device

Publications (2)

Publication Number Publication Date
WO2004044931A2 WO2004044931A2 (en) 2004-05-27
WO2004044931A3 true WO2004044931A3 (en) 2004-07-15

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ID=32314365

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Application Number Title Priority Date Filing Date
PCT/US2003/035605 WO2004044931A2 (en) 2002-11-06 2003-11-06 Improved mr device

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EP (1) EP1559119B1 (en)
JP (1) JP2006505957A (en)
KR (1) KR20050065633A (en)
DE (1) DE60316461T2 (en)
WO (1) WO2004044931A2 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4683185B2 (en) * 2004-11-05 2011-05-11 戸田工業株式会社 Magnetorheological fluid
JP4596143B2 (en) * 2005-04-20 2010-12-08 戸田工業株式会社 Magnetorheological fluid
DE102005030613A1 (en) * 2005-06-30 2007-01-04 Basf Ag Magnetorheological fluid
KR100680843B1 (en) * 2005-12-19 2007-02-08 현대자동차주식회사 System for preventing t00th nick
JP2007244855A (en) * 2006-02-15 2007-09-27 Tottori Univ Massage machine
US8486292B2 (en) 2006-09-22 2013-07-16 Basf Se Magnetorheological formulation
JP4883704B2 (en) * 2007-07-31 2012-02-22 カヤバ工業株式会社 Shock absorber
EP2176870B1 (en) * 2007-08-01 2017-01-11 LORD Corporation Non-settling glycol based magnetorheological fluids
JP5098764B2 (en) * 2008-04-03 2012-12-12 セイコーエプソン株式会社 Magnetic fluid and damper
JP5098763B2 (en) * 2008-04-03 2012-12-12 セイコーエプソン株式会社 Magnetic fluid and damper
KR20110043551A (en) * 2008-06-02 2011-04-27 로오드 코포레이션 Magneto-rheological fluid damper having enhanced on-state yield strength
KR100924087B1 (en) * 2008-07-23 2009-11-02 한국과학기술원 Haptic module using magnetic rheological fluid, control method thereof and haptic device therewith
EP2438600A1 (en) 2009-06-01 2012-04-11 Lord Corporation High durability magnetorheological fluids
JP5660098B2 (en) * 2012-09-20 2015-01-28 セイコーエプソン株式会社 Metal powder for magnetic fluid
JP5660099B2 (en) * 2012-09-20 2015-01-28 セイコーエプソン株式会社 Metal powder for magnetic fluid
JP6255715B2 (en) * 2013-05-17 2018-01-10 国立大学法人 名古屋工業大学 Magnetic functional fluid, damper and clutch using the same
DE102015202994A1 (en) * 2015-02-19 2016-08-25 Ford Global Technologies, Llc Control of a rear axle frame
JP6692146B2 (en) * 2015-11-04 2020-05-13 コスモ石油ルブリカンツ株式会社 Magnetorheological fluid composition
JP6598641B2 (en) * 2015-11-04 2019-10-30 コスモ石油ルブリカンツ株式会社 Magnetorheological fluid composition
CN108701521B (en) * 2016-02-29 2020-12-04 洛德公司 Additive for magnetorheological fluids
KR101676298B1 (en) * 2016-05-04 2016-11-15 주식회사 씨케이머티리얼즈랩 Magnetorheological fulids with improved re-dispersibility and method for evaluating re-dispersibility of magnetorheological fluids
CN116057299A (en) * 2020-09-09 2023-05-02 富士胶片株式会社 Magnetic viscous fluid, method for producing the same, and magnetic viscous fluid device
DE102022116024A1 (en) * 2022-06-27 2023-12-28 Inventus Engineering Gmbh Braking device and game controller

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5683615A (en) * 1996-06-13 1997-11-04 Lord Corporation Magnetorheological fluid
US5842547A (en) * 1996-07-02 1998-12-01 Lord Corporation Controllable brake
US5900184A (en) * 1995-10-18 1999-05-04 Lord Corporation Method and magnetorheological fluid formulations for increasing the output of a magnetorheological fluid device
US6203717B1 (en) * 1999-07-01 2001-03-20 Lord Corporation Stable magnetorheological fluids
US20010052893A1 (en) * 1998-11-10 2001-12-20 Lord Corporation Magnetically-controllable, semi-active haptic interface system and apparatus
US20020130305A1 (en) * 2001-03-13 2002-09-19 Delphi Technologies, Inc. MR fluids containing magnetic stainless steel

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5900184A (en) * 1995-10-18 1999-05-04 Lord Corporation Method and magnetorheological fluid formulations for increasing the output of a magnetorheological fluid device
US5683615A (en) * 1996-06-13 1997-11-04 Lord Corporation Magnetorheological fluid
US5842547A (en) * 1996-07-02 1998-12-01 Lord Corporation Controllable brake
US20010052893A1 (en) * 1998-11-10 2001-12-20 Lord Corporation Magnetically-controllable, semi-active haptic interface system and apparatus
US6203717B1 (en) * 1999-07-01 2001-03-20 Lord Corporation Stable magnetorheological fluids
US20020130305A1 (en) * 2001-03-13 2002-09-19 Delphi Technologies, Inc. MR fluids containing magnetic stainless steel

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DE60316461T2 (en) 2008-06-26
KR20050065633A (en) 2005-06-29
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WO2004044931A2 (en) 2004-05-27
EP1559119A2 (en) 2005-08-03
DE60316461D1 (en) 2007-10-31

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