WO2000063595A3 - Device for sealing an annular gap - Google Patents

Device for sealing an annular gap Download PDF

Info

Publication number
WO2000063595A3
WO2000063595A3 PCT/EP2000/003559 EP0003559W WO0063595A3 WO 2000063595 A3 WO2000063595 A3 WO 2000063595A3 EP 0003559 W EP0003559 W EP 0003559W WO 0063595 A3 WO0063595 A3 WO 0063595A3
Authority
WO
WIPO (PCT)
Prior art keywords
annular gap
sealing
magnetic
magnetic liquid
pipes
Prior art date
Application number
PCT/EP2000/003559
Other languages
German (de)
French (fr)
Other versions
WO2000063595A2 (en
Inventor
Peter Nuesser
Johannes Mueller
Norbert Buske
Werner Neumann
Original Assignee
Mediport Kardiotechnik Gmbh
Peter Nuesser
Johannes Mueller
Norbert Buske
Werner Neumann
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 Mediport Kardiotechnik Gmbh, Peter Nuesser, Johannes Mueller, Norbert Buske, Werner Neumann filed Critical Mediport Kardiotechnik Gmbh
Priority to AU47494/00A priority Critical patent/AU4749400A/en
Publication of WO2000063595A2 publication Critical patent/WO2000063595A2/en
Publication of WO2000063595A3 publication Critical patent/WO2000063595A3/en

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
    • 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)

Abstract

The invention relates to a device for sealing an annular gap. The aim of the invention is to provide a device for sealing an annular gap(1) by means of a magnetic liquid (11). The inventive device can seal two contactless, axially adjacent pipe ends (9, 10) in such a way that no exchange takes place between the fluid medium in the pipes and the proximity and that the magnetic liquid does not mix with the fluid medium and that the pipes can be moved and rotated against each other involving little friction. To this end, the pipe ends forming an annular gap are connected to the poles of a magnetic arrangement (8) in a magnetically conducting manner. Said magnetic arrangement is fixed around the annular gap area. A magnetic liquid is arranged in the annular gap.
PCT/EP2000/003559 1999-04-20 2000-04-19 Device for sealing an annular gap WO2000063595A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU47494/00A AU4749400A (en) 1999-04-20 2000-04-19 Device for sealing an annular gap

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1999118839 DE19918839A1 (en) 1999-04-20 1999-04-20 Device for sealing an annular gap
DE19918839.4 1999-04-20

Publications (2)

Publication Number Publication Date
WO2000063595A2 WO2000063595A2 (en) 2000-10-26
WO2000063595A3 true WO2000063595A3 (en) 2001-04-26

Family

ID=7905858

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2000/003559 WO2000063595A2 (en) 1999-04-20 2000-04-19 Device for sealing an annular gap

Country Status (3)

Country Link
AU (1) AU4749400A (en)
DE (2) DE19918839A1 (en)
WO (1) WO2000063595A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9476277B2 (en) 2010-10-09 2016-10-25 M-I L.L.C. Magnetic leak management apparatus and methods
CN108662149A (en) * 2018-06-06 2018-10-16 安徽普氏生态环境工程有限公司 A kind of magnetic sealing structure

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE851880C (en) * 1948-12-23 1952-10-09 Adolf Dr Razdowitz poetry
FR1297265A (en) * 1961-05-17 1962-06-29 New waterproof seal process and device
JPH0198765A (en) * 1987-10-06 1989-04-17 Mitsubishi Electric Corp Magnetic sealed device

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1209822B (en) * 1962-11-20 1966-01-27 Alsacienne Atom Device for tightly inserting a filter disc between the ends of two pipes
AT277686B (en) * 1965-04-09 1970-01-12 Ife Ges Fuer Maschinen Und App Gap seal
DE1956759C3 (en) * 1969-11-12 1974-06-12 Dornier System Gmbh, 7990 Friedrichshafen Gap seal between a surface and a body that is movable relative to this surface and forms a closed interior space with the surface and has a sealing strip opposite the surface
US4171818A (en) * 1977-04-04 1979-10-23 Ferrofluidics Corporation Dynamic lip seal using ferrofluids as sealant/lubricant
SU675248A1 (en) 1978-03-23 1979-07-25 Georgij A Lekomtsev Magnet-liquid seal
US4830384A (en) * 1987-06-29 1989-05-16 Ferrofluidics Corporation Compact long-life magnetic fluid seal
AU4863093A (en) * 1992-10-08 1994-04-21 Ferrofluidics Corporation Ferrofluidic seal centering ring
US5660397A (en) * 1994-09-23 1997-08-26 Holtkamp; William H. Devices employing a liquid-free medium

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE851880C (en) * 1948-12-23 1952-10-09 Adolf Dr Razdowitz poetry
FR1297265A (en) * 1961-05-17 1962-06-29 New waterproof seal process and device
JPH0198765A (en) * 1987-10-06 1989-04-17 Mitsubishi Electric Corp Magnetic sealed device

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
OCHONSKI W: "ANWENDUNGSMOEGLICHKEITEN FEUR MAGNETFLUESSIGKEITEN IN DER KICHTUNGSTECHNIK - TIEL II", ANTRIEBSTECHNIK,DE,KRAUSSKOPF VERLAG FUR WIRTSCHAFT GMBH. MAINZ, vol. 35, no. 4, 1 April 1996 (1996-04-01), pages 91 - 94, XP000583050, ISSN: 0722-8546 *
PATENT ABSTRACTS OF JAPAN vol. 013, no. 310 (M - 850) 14 July 1989 (1989-07-14) *

Also Published As

Publication number Publication date
AU4749400A (en) 2000-11-02
DE19918839A1 (en) 2000-11-30
WO2000063595A2 (en) 2000-10-26
DE20007579U1 (en) 2000-09-28

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