CH676740A5 - - Google Patents
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- Publication number
- CH676740A5 CH676740A5 CH253886A CH253886A CH676740A5 CH 676740 A5 CH676740 A5 CH 676740A5 CH 253886 A CH253886 A CH 253886A CH 253886 A CH253886 A CH 253886A CH 676740 A5 CH676740 A5 CH 676740A5
- Authority
- CH
- Switzerland
- Prior art keywords
- liquid seal
- magnetic
- axially
- seal according
- pole
- Prior art date
Links
- 239000007788 liquid Substances 0.000 claims description 18
- 230000005284 excitation Effects 0.000 claims 4
- 230000004907 flux Effects 0.000 claims 1
- 239000012530 fluid Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000005415 magnetization Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000014509 gene expression Effects 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 229910000938 samarium–cobalt magnet Inorganic materials 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH253886A CH676740A5 (enrdf_load_stackoverflow) | 1986-06-24 | 1986-06-24 | |
| DE19873720024 DE3720024A1 (de) | 1986-06-24 | 1987-06-16 | Anordnung fuer eine magnetische fluessigkeitsdichtung |
| DE8708440U DE8708440U1 (de) | 1986-06-24 | 1987-06-16 | Magnetische Flüssigkeitsdichtung |
| GB8714376A GB2192676B (en) | 1986-06-24 | 1987-06-19 | A magnetic fluid seal apparatus |
| GB9027376A GB2236363B (en) | 1986-06-24 | 1990-12-18 | Magnetic fluid seal apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH253886A CH676740A5 (enrdf_load_stackoverflow) | 1986-06-24 | 1986-06-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH676740A5 true CH676740A5 (enrdf_load_stackoverflow) | 1991-02-28 |
Family
ID=4236046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH253886A CH676740A5 (enrdf_load_stackoverflow) | 1986-06-24 | 1986-06-24 |
Country Status (3)
| Country | Link |
|---|---|
| CH (1) | CH676740A5 (enrdf_load_stackoverflow) |
| DE (2) | DE3720024A1 (enrdf_load_stackoverflow) |
| GB (1) | GB2192676B (enrdf_load_stackoverflow) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3924434A1 (de) * | 1989-07-24 | 1991-01-31 | Freudenberg Carl Fa | Ferrofluid-dichtung |
| DE4411367A1 (de) * | 1994-03-31 | 1995-10-05 | Burgmann Dichtungswerk Feodor | Spalttopfgedichtete magnetische Antriebseinrichtung |
| DE102014014770B4 (de) * | 2014-10-10 | 2016-10-27 | Sew-Eurodrive Gmbh & Co Kg | Elektromotor mit einem Stator und Rotor |
| CH710388A2 (de) | 2014-11-17 | 2016-05-31 | Agro Ag | Rohreinführung für eine Unterputzdose. |
| DE102019218446A1 (de) * | 2019-11-28 | 2021-06-02 | Volkswagen Aktiengesellschaft | Elektromaschine mit reibungsarmer Luftspaltabdichtung und Kraftfahrzeug |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH293219A (de) * | 1948-12-23 | 1953-09-15 | Adolph Dr Razdowitz | Dichtungsvorrichtung an zwei relativ zueinander drehbaren Hohlkörpern. |
| JPS57208358A (en) * | 1981-06-15 | 1982-12-21 | Rigaku Denki Kk | Shaft sealing device using magnetic fluid |
| JPS5950275A (ja) * | 1982-09-16 | 1984-03-23 | Rigaku Keisoku Kk | 磁性流体軸封装置 |
| US4526380A (en) * | 1984-01-27 | 1985-07-02 | Ferrofluidics Corporation | Single pole piece multiple-stage ferrofluid seal apparatus |
| US4526382A (en) * | 1984-05-03 | 1985-07-02 | Ferrofluidics Corporation | Radially polarized multiple-stage ferrofluid seal apparatus |
| JPS61160672A (ja) * | 1984-11-20 | 1986-07-21 | フエロフルイデイクス・コ−ポレイシヨン | 磁性流体シ−ル装置およびシ−ル方法 |
-
1986
- 1986-06-24 CH CH253886A patent/CH676740A5/de not_active IP Right Cessation
-
1987
- 1987-06-16 DE DE19873720024 patent/DE3720024A1/de not_active Ceased
- 1987-06-16 DE DE8708440U patent/DE8708440U1/de not_active Expired
- 1987-06-19 GB GB8714376A patent/GB2192676B/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE8708440U1 (de) | 1987-09-03 |
| GB2192676B (en) | 1991-07-31 |
| DE3720024A1 (de) | 1988-01-07 |
| GB8714376D0 (en) | 1987-07-22 |
| GB2192676A (en) | 1988-01-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased | ||
| PL | Patent ceased |