GB1312698A - Magnetic fluid seal - Google Patents
Magnetic fluid sealInfo
- Publication number
- GB1312698A GB1312698A GB4799970A GB4799970A GB1312698A GB 1312698 A GB1312698 A GB 1312698A GB 4799970 A GB4799970 A GB 4799970A GB 4799970 A GB4799970 A GB 4799970A GB 1312698 A GB1312698 A GB 1312698A
- Authority
- GB
- United Kingdom
- Prior art keywords
- shaft
- magnetic fluid
- magnetic
- seal
- gaps
- 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
- 239000011553 magnetic fluid Substances 0.000 title abstract 6
- 229940090961 chromium dioxide Drugs 0.000 abstract 1
- IAQWMWUKBQPOIY-UHFFFAOYSA-N chromium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Cr+4] IAQWMWUKBQPOIY-UHFFFAOYSA-N 0.000 abstract 1
- AYTAKQFHWFYBMA-UHFFFAOYSA-N chromium(IV) oxide Inorganic materials O=[Cr]=O AYTAKQFHWFYBMA-UHFFFAOYSA-N 0.000 abstract 1
- 235000014113 dietary fatty acids Nutrition 0.000 abstract 1
- 229930195729 fatty acid Natural products 0.000 abstract 1
- 239000000194 fatty acid Substances 0.000 abstract 1
- 150000004665 fatty acids Chemical class 0.000 abstract 1
- 239000012530 fluid Substances 0.000 abstract 1
- 230000004907 flux Effects 0.000 abstract 1
- 229930195733 hydrocarbon Natural products 0.000 abstract 1
- 150000002430 hydrocarbons Chemical class 0.000 abstract 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 239000004094 surface-active agent Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 229910000859 α-Fe Inorganic materials 0.000 abstract 1
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
-
- 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
- F16C33/76—Sealings of ball or roller bearings
- F16C33/762—Sealings of ball or roller bearings by means of a fluid
- F16C33/763—Sealings of ball or roller bearings by means of a fluid retained in the sealing gap
- F16C33/765—Sealings of ball or roller bearings by means of a fluid retained in the sealing gap by a magnetic field
Landscapes
- 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)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US86528169A | 1969-10-10 | 1969-10-10 | |
| US4024670A | 1970-05-25 | 1970-05-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1312698A true GB1312698A (en) | 1973-04-04 |
Family
ID=26716878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4799970A Expired GB1312698A (en) | 1969-10-10 | 1970-10-08 | Magnetic fluid seal |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS519853B1 (enrdf_load_stackoverflow) |
| DE (1) | DE2034213C3 (enrdf_load_stackoverflow) |
| FR (1) | FR2065847A5 (enrdf_load_stackoverflow) |
| GB (1) | GB1312698A (enrdf_load_stackoverflow) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5134838A (enrdf_load_stackoverflow) * | 1974-09-19 | 1976-03-24 | Osaka Transformer Co Ltd | |
| EP0004609A3 (en) * | 1978-04-10 | 1979-10-31 | Hughes Aircraft Company | Screw compressor-expander cryogenic system |
| US4309632A (en) * | 1978-09-21 | 1982-01-05 | Siemens Aktiengesellschaft | Electric machine with a rotor with a superconducting field winding |
| US6536218B1 (en) | 1999-08-17 | 2003-03-25 | Siemens Aktiengesellschaft | Supraconducting device comprising a cooling unit for a rotating supraconductive coil |
| CN101776149A (zh) * | 2010-03-01 | 2010-07-14 | 北京交通大学 | 低温小直径磁性液体密封装置 |
Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52100785A (en) * | 1976-02-19 | 1977-08-24 | Taisei Porimaa Kk | Compensating plate for treating radiation or phantom for measuring absorption ray |
| DE2856128C3 (de) * | 1978-12-27 | 1981-08-13 | Siemens AG, 1000 Berlin und 8000 München | Kühlmittelanschlußkopf für eine elektrische Maschine, die einen um eine Achse drehbar gelagerten Läufer mit einer von einem Kühlmittel tiefzukühlenden, supraleitenden Wicklung enthält |
| IL60597A0 (en) * | 1979-07-30 | 1980-09-16 | Litton Systems Inc | Ferro-fluid bearing |
| DE3207061C2 (de) * | 1982-02-26 | 1986-09-18 | Siemens AG, 1000 Berlin und 8000 München | Abdichtungsvorrichtung mit einer magnetisierbaren Dichtungsflüssigkeit |
| DE3430479A1 (de) * | 1983-08-26 | 1985-03-07 | Ferrofluidics Corp., Nashua, N.H. | Lageranordnung mit integrierter ferrofluid-dichtung |
| US4478424A (en) * | 1984-01-27 | 1984-10-23 | Ferrofluidics Corporation | Ferrofluid seal apparatus and method |
| US4548699A (en) * | 1984-05-17 | 1985-10-22 | Varian Associates, Inc. | Transfer plate rotation system |
| US4694213A (en) * | 1986-11-21 | 1987-09-15 | Ferrofluidics Corporation | Ferrofluid seal for a stationary shaft and a rotating hub |
| DE3713567C1 (de) * | 1987-04-23 | 1987-12-03 | Iris Diesing | Mehrstufige Dichtungsvorrichtung mit Ferrofluid |
| JPH01255762A (ja) * | 1988-03-31 | 1989-10-12 | Nippon Ferrofluidics Kk | 磁性流体シール用のシール体及びその製造方法 |
| DE3811227C2 (de) * | 1988-04-02 | 1996-04-11 | Freudenberg Carl Fa | Ferrofluiddichtung |
| JPH0713425Y2 (ja) * | 1988-07-11 | 1995-03-29 | 日本電産株式会社 | スピンドルモータ |
| DE9307447U1 (de) * | 1993-05-17 | 1993-07-22 | Friatec-Rheinhütte GmbH & Co., 6200 Wiesbaden | Vertikale Magnetkupplungspumpe bzw. -rührer |
| DE19937873A1 (de) * | 1999-08-13 | 2001-03-15 | Alma Mechanik Metallteile Gmbh | Magnetdichtung und Verfahren zur Herstellung einer Magnetdichtung |
| DE10042962C1 (de) | 2000-08-31 | 2002-05-02 | Siemens Ag | Magnetlager zur Lagerung einer drehbaren Welle unter Verwendung von Hoch-T¶c¶-Supraleitermaterial |
| DE202005005904U1 (de) * | 2005-04-07 | 2006-08-17 | Ebm-Papst St. Georgen Gmbh & Co. Kg | Anordnung zur Lagerung einer drehbaren Welle |
| DE102012200774A1 (de) * | 2012-01-20 | 2013-07-25 | Aktiebolaget Skf | Wälzlagereinheit |
| DE102012017805A1 (de) | 2012-09-10 | 2014-03-13 | Christian Funke | Dichtungsvorrichtung mit magnetischer Abschirmung und elektrischer Isolation unter Verwendung eines magnetorheologischen Mediums |
| CN107740866B (zh) * | 2017-11-03 | 2023-05-02 | 广西科技大学 | 一种阶梯式磁流体密封装置 |
| CN107956881B (zh) * | 2017-12-13 | 2023-05-02 | 广西科技大学 | 一种交错式磁流体密封装置 |
| CN112963548B (zh) * | 2021-03-23 | 2021-11-02 | 清华大学 | 可密封液体的磁性液体密封装置 |
| CN120042951B (zh) * | 2025-04-24 | 2025-06-20 | 中国矿业大学 | 一种高精度低泄漏安全阀 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1007372A (fr) * | 1948-12-23 | 1952-05-05 | Dispositif d'étanchéité | |
| US2786155A (en) * | 1953-09-25 | 1957-03-19 | Allis Chalmers Mfg Co | Unipolar dynamoelectric machine with sleeve mounted field coil |
| GB783881A (en) * | 1954-03-05 | 1957-10-02 | Vickers Electrical Co Ltd | Improvements relating to shaft and like seals |
| FR1119965A (fr) * | 1954-03-05 | 1956-06-27 | Thomson Houston Comp Francaise | Perfectionnement aux joints d'étanchéité pour les arbres tournants et autres pièces mobiles |
| BE561542A (enrdf_load_stackoverflow) * | 1956-10-11 | |||
| CH409544A (de) * | 1961-02-21 | 1966-03-15 | Zahnradfabrik Friedrichshafen | Elektromagnetisch betätigte Lamellenkupplung |
| FR1297265A (fr) * | 1961-05-17 | 1962-06-29 | Nouveau procédé et dispositif de joints étanches | |
| US3168666A (en) * | 1962-12-26 | 1965-02-02 | Gen Electric | Dynamoelectric machine electrical collector assembly using liquid metal |
| US3501089A (en) * | 1968-07-17 | 1970-03-17 | Gen Electric | Jet pump ejector |
-
1970
- 1970-07-10 DE DE19702034213 patent/DE2034213C3/de not_active Expired
- 1970-08-05 FR FR7028811A patent/FR2065847A5/fr not_active Expired
- 1970-08-18 JP JP45071806A patent/JPS519853B1/ja active Pending
- 1970-10-08 GB GB4799970A patent/GB1312698A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5134838A (enrdf_load_stackoverflow) * | 1974-09-19 | 1976-03-24 | Osaka Transformer Co Ltd | |
| EP0004609A3 (en) * | 1978-04-10 | 1979-10-31 | Hughes Aircraft Company | Screw compressor-expander cryogenic system |
| US4309632A (en) * | 1978-09-21 | 1982-01-05 | Siemens Aktiengesellschaft | Electric machine with a rotor with a superconducting field winding |
| US6536218B1 (en) | 1999-08-17 | 2003-03-25 | Siemens Aktiengesellschaft | Supraconducting device comprising a cooling unit for a rotating supraconductive coil |
| CN101776149A (zh) * | 2010-03-01 | 2010-07-14 | 北京交通大学 | 低温小直径磁性液体密封装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS519853B1 (enrdf_load_stackoverflow) | 1976-03-31 |
| DE2034213B2 (de) | 1980-06-26 |
| DE2034213C3 (de) | 1985-04-25 |
| DE2034213A1 (de) | 1971-05-06 |
| FR2065847A5 (enrdf_load_stackoverflow) | 1971-08-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PE20 | Patent expired after termination of 20 years |