CA1149852A - Palier ferrofluidique - Google Patents

Palier ferrofluidique

Info

Publication number
CA1149852A
CA1149852A CA000356348A CA356348A CA1149852A CA 1149852 A CA1149852 A CA 1149852A CA 000356348 A CA000356348 A CA 000356348A CA 356348 A CA356348 A CA 356348A CA 1149852 A CA1149852 A CA 1149852A
Authority
CA
Canada
Prior art keywords
bore
shaft
axis
recited
entire
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
CA000356348A
Other languages
English (en)
Inventor
George J. Hoffman
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.)
Northrop Grumman Guidance and Electronics Co Inc
Original Assignee
Litton Systems 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 Litton Systems Inc filed Critical Litton Systems Inc
Application granted granted Critical
Publication of CA1149852A publication Critical patent/CA1149852A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets
    • H01F41/0273—Imparting anisotropy
    • H01F41/028—Radial anisotropy
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/06—Sliding surface mainly made of metal
    • F16C33/10—Construction relative to lubrication
    • F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
    • F16C33/103—Construction relative to lubrication with liquid, e.g. oil, as lubricant retained in or near the bearing
    • F16C33/1035—Construction relative to lubrication with liquid, e.g. oil, as lubricant retained in or near the bearing by a magnetic field acting on a magnetic liquid
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings
    • F16C33/74—Sealings of sliding-contact bearings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/02—Permanent magnets [PM]
    • H01F7/0231—Magnetic circuits with PM for power or force generation
    • H01F7/0236—Magnetic suspension or levitation

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)
CA000356348A 1979-07-30 1980-07-16 Palier ferrofluidique Expired CA1149852A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US6219779A 1979-07-30 1979-07-30
US62,197 1979-07-30

Publications (1)

Publication Number Publication Date
CA1149852A true CA1149852A (fr) 1983-07-12

Family

ID=22040823

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000356348A Expired CA1149852A (fr) 1979-07-30 1980-07-16 Palier ferrofluidique

Country Status (7)

Country Link
JP (1) JPS5642722A (fr)
CA (1) CA1149852A (fr)
DE (1) DE3028454A1 (fr)
FR (1) FR2467318A1 (fr)
GB (2) GB2058953B (fr)
IL (1) IL60597A0 (fr)
IT (1) IT1128663B (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8602343A (nl) * 1986-09-16 1988-04-18 Skf Ind Trading & Dev Glijlager-samenstel.
GB2222679B (en) * 1988-03-15 1991-10-16 Baroid Technology Inc Accelerometers
JPH04313748A (ja) * 1991-01-23 1992-11-05 Konica Corp 撮影ユニット
JP2599459Y2 (ja) * 1991-03-15 1999-09-06 エヌオーケー株式会社 磁性流体軸受
ES2086711T3 (es) * 1991-07-11 1996-07-01 Laube Hans Juergen Cuerpo magnetico compuesto de varios cuerpos magneticos individuales y cojinete de levitacion magnetica permanente con un cuerpo magnetico global compuesto de varios imanes individuales.
JPH0728599U (ja) * 1993-11-09 1995-05-30 株式会社プラスパ 小チップの積み上げクラフト及びチップ材
DE10244495A1 (de) * 2002-09-25 2004-04-08 Saurer Gmbh & Co. Kg Textilmaschine mit einer Vielzahl von Arbeitsstellen
US9462388B2 (en) 2004-06-03 2016-10-04 Tymphany Hk Limited Acoustic transducer comprising a plurality of coaxially arranged diaphragms
CA2567733A1 (fr) * 2004-06-03 2005-12-22 Tymphany Corporation Transducteur acoustique comprenant une pluralite de diaphragmes disposes dans le sens coaxial
DE202005005904U1 (de) * 2005-04-07 2006-08-17 Ebm-Papst St. Georgen Gmbh & Co. Kg Anordnung zur Lagerung einer drehbaren Welle

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1052192B (de) * 1956-07-14 1959-03-05 Philips Nv Abdichtung fuer eine Wellendurchfuehrung durch die Wand eines feine Eisenteilchen enthaltenden Raumes
GB842531A (en) * 1958-12-24 1960-07-27 Mullard Ltd Permanent magnets
DE2034213C3 (de) * 1969-10-10 1985-04-25 Ferrofluidics Corp., Burlington, Mass. Magnetdichtung zur Abdichtung von Dichtungsspalten
US3620584A (en) * 1970-05-25 1971-11-16 Ferrofluidics Corp Magnetic fluid seals
GB1413118A (en) * 1972-12-08 1975-11-05 Godsill J K Lubrication
US3746407A (en) * 1971-08-13 1973-07-17 Litton Systems Inc Ferrohydrodynamic low friction bearing
US3726574A (en) * 1971-08-13 1973-04-10 Litton Systems Inc Ferrohydrodynamic low-friction bearing with volume compensation
DE2213465C3 (de) * 1972-03-20 1986-02-13 Padana AG, Zug Elektromagnetisches Lagerelement
USRE27955E (en) * 1972-05-19 1974-04-02 Bearing arrangement with magnetic fluid defining bearing pads
DE2245039B2 (de) * 1972-09-14 1976-01-02 Daimler-Benz Ag, 7000 Stuttgart Gleitlager
US3918773A (en) * 1974-01-07 1975-11-11 Litton Systems Inc Magnetic field responsive hydrodynamic bearing
DE2420825C3 (de) * 1974-04-30 1980-04-17 Padana Ag, Zug (Schweiz) Magnetische Lagerung eines Rotors
US4065188A (en) * 1975-02-10 1977-12-27 Strathearn Audio Limited Linear bearing for parallel tracking arm
US4043612A (en) * 1975-06-06 1977-08-23 Ampex Corporation Bearing structure

Also Published As

Publication number Publication date
GB2058953A (en) 1981-04-15
GB2124033A (en) 1984-02-08
FR2467318A1 (fr) 1981-04-17
IT8049355A0 (it) 1980-07-28
IT1128663B (it) 1986-06-04
JPS5642722A (en) 1981-04-21
DE3028454A1 (de) 1981-02-19
IL60597A0 (en) 1980-09-16
FR2467318B1 (fr) 1984-08-10
GB2058953B (en) 1983-05-05
GB2124033B (en) 1984-08-01

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Legal Events

Date Code Title Description
MKEX Expiry