FI885967A - Flerstegs taetningsanordning med ferrovaetska. - Google Patents
Flerstegs taetningsanordning med ferrovaetska. Download PDFInfo
- Publication number
- FI885967A FI885967A FI885967A FI885967A FI885967A FI 885967 A FI885967 A FI 885967A FI 885967 A FI885967 A FI 885967A FI 885967 A FI885967 A FI 885967A FI 885967 A FI885967 A FI 885967A
- Authority
- FI
- Finland
- Prior art keywords
- taetningsanordning
- flerstegs
- ferrovaetska
- med
- taetningsanordning med
- Prior art date
Links
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
-
- 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)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3713567A DE3713567C1 (de) | 1987-04-23 | 1987-04-23 | Mehrstufige Dichtungsvorrichtung mit Ferrofluid |
PCT/DE1988/000214 WO1988008495A1 (en) | 1987-04-23 | 1988-03-31 | Multistage sealing device with ferrofluid |
Publications (1)
Publication Number | Publication Date |
---|---|
FI885967A true FI885967A (fi) | 1988-12-23 |
Family
ID=6326116
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI885967A FI885967A (fi) | 1987-04-23 | 1988-12-23 | Flerstegs taetningsanordning med ferrovaetska. |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0312554A1 (fi) |
KR (1) | KR900700802A (fi) |
DE (1) | DE3713567C1 (fi) |
FI (1) | FI885967A (fi) |
WO (1) | WO1988008495A1 (fi) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH674887A5 (fi) * | 1986-06-10 | 1990-07-31 | Papst Motoren Gmbh & Co Kg | |
DE3807893C2 (de) * | 1988-03-10 | 1994-02-24 | Freudenberg Carl Fa | Dichtung für eine magnetisierbare Welle |
DE3822198A1 (de) * | 1988-04-09 | 1989-10-19 | Lechler Elring Dichtungswerke | Magnetische dichtungsvorrichtung |
US5134331A (en) * | 1990-05-31 | 1992-07-28 | Nippon Densan Corporation | Spindle motor |
US5975536A (en) * | 1997-09-30 | 1999-11-02 | Rigaku/Usa, Inc. | Rotary motion feedthrough with rotating magnet system |
US7129609B1 (en) | 2005-08-30 | 2006-10-31 | Ferrolabs, Inc. | Magneto-fluidic seal with wide working temperature range |
DE102006051992B3 (de) * | 2006-11-03 | 2008-01-31 | Dtg - Development & Technology Gmbh | Magnetflüssigkeitsdichtung zur Abdichtung einer Welle oder Achse gegenüber einer Nabe |
CN106122285B (zh) * | 2016-09-09 | 2018-03-20 | 广西科技大学 | 一种圆锥式磁流体密封装置 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2034213C3 (de) * | 1969-10-10 | 1985-04-25 | Ferrofluidics Corp., Burlington, Mass. | Magnetdichtung zur Abdichtung von Dichtungsspalten |
US4171818A (en) * | 1977-04-04 | 1979-10-23 | Ferrofluidics Corporation | Dynamic lip seal using ferrofluids as sealant/lubricant |
US4531846A (en) * | 1983-12-27 | 1985-07-30 | Ferrofluidics Corporation | Compact ferrofluid seal and bearing assembly |
US4502700A (en) * | 1984-05-03 | 1985-03-05 | Ferrofluidics Corporation | Ferrofluid linear seal apparatus |
US4526382A (en) * | 1984-05-03 | 1985-07-02 | Ferrofluidics Corporation | Radially polarized multiple-stage ferrofluid seal apparatus |
DE3671790D1 (de) * | 1985-07-24 | 1990-07-12 | Hitachi Ltd | Dichtungsvorrichtung mit magnetischer fluessigkeit. |
DE3644697C1 (de) * | 1986-12-30 | 1988-02-11 | Manfred Dipl-Ing Diesing | Dichtungsvorrichtung mit Ferrofluid |
DE8705884U1 (de) * | 1987-04-23 | 1987-06-19 | Diesing, Iris, 7140 Ludwigsburg | Mehrstufige Dichtungsvorrichtung mit Ferrofluid |
-
1987
- 1987-04-23 DE DE3713567A patent/DE3713567C1/de not_active Expired
-
1988
- 1988-03-31 WO PCT/DE1988/000214 patent/WO1988008495A1/de not_active Application Discontinuation
- 1988-03-31 KR KR1019880701724A patent/KR900700802A/ko not_active Application Discontinuation
- 1988-03-31 EP EP88902808A patent/EP0312554A1/de not_active Withdrawn
- 1988-12-23 FI FI885967A patent/FI885967A/fi not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR900700802A (ko) | 1990-08-17 |
DE3713567C1 (de) | 1987-12-03 |
EP0312554A1 (de) | 1989-04-26 |
WO1988008495A1 (en) | 1988-11-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM | Patent lapsed |
Owner name: DIESING, IRIS |