GB2058953B - Magnetic fluid bearing - Google Patents
Magnetic fluid bearingInfo
- Publication number
- GB2058953B GB2058953B GB8024332A GB8024332A GB2058953B GB 2058953 B GB2058953 B GB 2058953B GB 8024332 A GB8024332 A GB 8024332A GB 8024332 A GB8024332 A GB 8024332A GB 2058953 B GB2058953 B GB 2058953B
- Authority
- GB
- United Kingdom
- Prior art keywords
- magnetic fluid
- fluid bearing
- bearing
- 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
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)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US6219779A | 1979-07-30 | 1979-07-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2058953A GB2058953A (en) | 1981-04-15 |
GB2058953B true GB2058953B (en) | 1983-05-05 |
Family
ID=22040823
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8024332A Expired GB2058953B (en) | 1979-07-30 | 1980-07-24 | Magnetic fluid bearing |
GB08229706A Expired GB2124033B (en) | 1979-07-30 | 1982-10-18 | Permanent magnet |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB08229706A Expired GB2124033B (en) | 1979-07-30 | 1982-10-18 | Permanent magnet |
Country Status (7)
Country | Link |
---|---|
JP (1) | JPS5642722A (en) |
CA (1) | CA1149852A (en) |
DE (1) | DE3028454A1 (en) |
FR (1) | FR2467318A1 (en) |
GB (2) | GB2058953B (en) |
IL (1) | IL60597A0 (en) |
IT (1) | IT1128663B (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL8602343A (en) * | 1986-09-16 | 1988-04-18 | Skf Ind Trading & Dev | BEARING ASSEMBLY. |
GB2222679B (en) * | 1988-03-15 | 1991-10-16 | Baroid Technology Inc | Accelerometers |
JPH04313748A (en) * | 1991-01-23 | 1992-11-05 | Konica Corp | Photographic unit |
JP2599459Y2 (en) * | 1991-03-15 | 1999-09-06 | エヌオーケー株式会社 | Magnetic fluid bearing |
DE59205445D1 (en) * | 1991-07-11 | 1996-04-04 | Laube Hans Juergen | Magnetic body composed of several individual magnetic bodies and a permanent magnetic floating bearing with an overall magnetic body composed of several individual magnets |
JPH0728599U (en) * | 1993-11-09 | 1995-05-30 | 株式会社プラスパ | Small chip stacking craft and chip materials |
DE10244495A1 (en) * | 2002-09-25 | 2004-04-08 | Saurer Gmbh & Co. Kg | Textile machine with a variety of jobs |
ATE548859T1 (en) * | 2004-06-03 | 2012-03-15 | Tymphany Hk Ltd | ACOUSTIC TRANSDUCER HAVING A PLURALITY OF MEMBRANES ARRANGED ON THE SAME AXIS |
US9462388B2 (en) | 2004-06-03 | 2016-10-04 | Tymphany Hk Limited | Acoustic transducer comprising a plurality of coaxially arranged diaphragms |
DE202005005904U1 (en) * | 2005-04-07 | 2006-08-17 | Ebm-Papst St. Georgen Gmbh & Co. Kg | Bearing arrangement for bearing of swiveling shaft has swiveling shaft of hard ferromagnetic material, which has a permanent magnetic field whereby plain bearing serves as return for magnetic field lines of permanent magnetic field |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1052192B (en) * | 1956-07-14 | 1959-03-05 | Philips Nv | Sealing for a shaft duct through the wall of a space containing fine iron particles |
GB842531A (en) * | 1958-12-24 | 1960-07-27 | Mullard Ltd | Permanent magnets |
DE2034213C3 (en) * | 1969-10-10 | 1985-04-25 | Ferrofluidics Corp., Burlington, Mass. | Magnetic seal for sealing sealing gaps |
US3620584A (en) * | 1970-05-25 | 1971-11-16 | Ferrofluidics Corp | Magnetic fluid seals |
US3726574A (en) * | 1971-08-13 | 1973-04-10 | Litton Systems Inc | Ferrohydrodynamic low-friction bearing with volume compensation |
US3746407A (en) * | 1971-08-13 | 1973-07-17 | Litton Systems Inc | Ferrohydrodynamic low friction bearing |
GB1413118A (en) * | 1972-12-08 | 1975-11-05 | Godsill J K | Lubrication |
DE2213465C3 (en) * | 1972-03-20 | 1986-02-13 | Padana AG, Zug | Electromagnetic bearing element |
USRE27955E (en) * | 1972-05-19 | 1974-04-02 | Bearing arrangement with magnetic fluid defining bearing pads | |
DE2245039B2 (en) * | 1972-09-14 | 1976-01-02 | Daimler-Benz Ag, 7000 Stuttgart | bearings |
US3918773A (en) * | 1974-01-07 | 1975-11-11 | Litton Systems Inc | Magnetic field responsive hydrodynamic bearing |
DE2420825C3 (en) * | 1974-04-30 | 1980-04-17 | Padana Ag, Zug (Schweiz) | Magnetic bearing of a rotor |
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 |
-
1980
- 1980-07-15 IL IL60597A patent/IL60597A0/en unknown
- 1980-07-16 CA CA000356348A patent/CA1149852A/en not_active Expired
- 1980-07-24 GB GB8024332A patent/GB2058953B/en not_active Expired
- 1980-07-26 DE DE19803028454 patent/DE3028454A1/en not_active Withdrawn
- 1980-07-28 IT IT49355/80A patent/IT1128663B/en active
- 1980-07-29 FR FR8016694A patent/FR2467318A1/en active Granted
- 1980-07-30 JP JP10376080A patent/JPS5642722A/en active Pending
-
1982
- 1982-10-18 GB GB08229706A patent/GB2124033B/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
CA1149852A (en) | 1983-07-12 |
FR2467318B1 (en) | 1984-08-10 |
IT1128663B (en) | 1986-06-04 |
IT8049355A0 (en) | 1980-07-28 |
GB2058953A (en) | 1981-04-15 |
FR2467318A1 (en) | 1981-04-17 |
GB2124033A (en) | 1984-02-08 |
GB2124033B (en) | 1984-08-01 |
IL60597A0 (en) | 1980-09-16 |
JPS5642722A (en) | 1981-04-21 |
DE3028454A1 (en) | 1981-02-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |