DE3720024A1 - Anordnung fuer eine magnetische fluessigkeitsdichtung - Google Patents

Anordnung fuer eine magnetische fluessigkeitsdichtung

Info

Publication number
DE3720024A1
DE3720024A1 DE19873720024 DE3720024A DE3720024A1 DE 3720024 A1 DE3720024 A1 DE 3720024A1 DE 19873720024 DE19873720024 DE 19873720024 DE 3720024 A DE3720024 A DE 3720024A DE 3720024 A1 DE3720024 A1 DE 3720024A1
Authority
DE
Germany
Prior art keywords
axially
arrangement according
pole
standing
ring
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.)
Ceased
Application number
DE19873720024
Other languages
German (de)
English (en)
Inventor
Heinrich Ing Grad Cap
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Papst Licensing GmbH and Co KG
Original Assignee
Papst Motoren GmbH and Co KG
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 Papst Motoren GmbH and Co KG filed Critical Papst Motoren GmbH and Co KG
Publication of DE3720024A1 publication Critical patent/DE3720024A1/de
Ceased legal-status Critical Current

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)
DE19873720024 1986-06-24 1987-06-16 Anordnung fuer eine magnetische fluessigkeitsdichtung Ceased DE3720024A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH253886A CH676740A5 (fr) 1986-06-24 1986-06-24

Publications (1)

Publication Number Publication Date
DE3720024A1 true DE3720024A1 (de) 1988-01-07

Family

ID=4236046

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19873720024 Ceased DE3720024A1 (de) 1986-06-24 1987-06-16 Anordnung fuer eine magnetische fluessigkeitsdichtung
DE8708440U Expired DE8708440U1 (de) 1986-06-24 1987-06-16 Magnetische Flüssigkeitsdichtung

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE8708440U Expired DE8708440U1 (de) 1986-06-24 1987-06-16 Magnetische Flüssigkeitsdichtung

Country Status (3)

Country Link
CH (1) CH676740A5 (fr)
DE (2) DE3720024A1 (fr)
GB (1) GB2192676B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
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
DE102019218446A1 (de) * 2019-11-28 2021-06-02 Volkswagen Aktiengesellschaft Elektromaschine mit reibungsarmer Luftspaltabdichtung und Kraftfahrzeug

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014014770B4 (de) * 2014-10-10 2016-10-27 Sew-Eurodrive Gmbh & Co Kg Elektromotor mit einem Stator und Rotor

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4526382A (en) * 1984-05-03 1985-07-02 Ferrofluidics Corporation Radially polarized multiple-stage ferrofluid seal apparatus
DE3501937A1 (de) * 1984-01-27 1985-08-08 Ferrofluidics Corp., Nashua, N.H. Mehrstufige ferrofluiddichtung mit einem polstueck

Family Cites Families (4)

* Cited by examiner, † Cited by third party
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
EP0182656A3 (fr) * 1984-11-20 1986-10-08 Ferrofluidics Corporation Appareil et procédé d'étanchéité ferrofluidique

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3501937A1 (de) * 1984-01-27 1985-08-08 Ferrofluidics Corp., Nashua, N.H. Mehrstufige ferrofluiddichtung mit einem polstueck
US4526382A (en) * 1984-05-03 1985-07-02 Ferrofluidics Corporation Radially polarized multiple-stage ferrofluid seal apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
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
DE102019218446A1 (de) * 2019-11-28 2021-06-02 Volkswagen Aktiengesellschaft Elektromaschine mit reibungsarmer Luftspaltabdichtung und Kraftfahrzeug

Also Published As

Publication number Publication date
DE8708440U1 (de) 1987-09-03
GB2192676B (en) 1991-07-31
CH676740A5 (fr) 1991-02-28
GB2192676A (en) 1988-01-20
GB8714376D0 (en) 1987-07-22

Similar Documents

Publication Publication Date Title
DE3049334C3 (de) Antriebsvorrichtung für Festplattenspeicher
DE3500516A1 (de) Lager mit integrierter ferrofluiddichtung
DE69001935T2 (de) Magnetischer mehrpoliger Ring.
EP0380744A1 (fr) Machine électrique
DE3828081A1 (de) Abdichtvorrichtung fuer in waelzlagern rotierende bauteile
DE3501937A1 (de) Mehrstufige ferrofluiddichtung mit einem polstueck
DE69911634T2 (de) Drehbewegungsdurchführung
DE3700319A1 (de) Miniaturmotor
EP0574960B1 (fr) Moteur électrique rotatif
DE2200808A1 (de) Radiales magnetlager
DE2637706A1 (de) Segmentmagnet
DE69206030T2 (de) Elektromagnetischer Mikromotor mit Axialfluss.
DE19523789C2 (de) Bürstenloser Elektromotor
DE3720024A1 (de) Anordnung fuer eine magnetische fluessigkeitsdichtung
DE69524366T2 (de) Wälzlager mit Drehgeschwindigkeitssensor
CH670017A5 (en) Miniature permanent magnet electric motor - has narrow cylindrical air-gap and integral outer housing and stator of sintered metal
DE3427994A1 (de) Axial kompakter direktantriebsmotor
DE4021599A1 (de) Buerstenloser gleichstrommotor
DE2226025B2 (de) Magnetkreisanordnung mit Dauermagneten
DE3713567C1 (de) Mehrstufige Dichtungsvorrichtung mit Ferrofluid
DE102015222748A1 (de) Adaptive Dichtungsanordnung sowie Lageranordnung mit adaptiver Dichtungsanordnung
DE10123513A1 (de) Elektrische Meßtechnik, speziell Weg- und Winkelaufnehmer mit magnetoresistiven Sensorelementen
DE69010592T2 (de) Dichtung und Lager mit magnetisierbarer Flüssigkeit.
DE3510601A1 (de) Kolbeneinheit fuer einen arbeitszylinder mit einer einrichtung zum erfassen der kolbenposition
DE3719116B4 (de) Hartplattenspeicher

Legal Events

Date Code Title Description
8127 New person/name/address of the applicant

Owner name: PAPST LICENSING GMBH, 78549 SPAICHINGEN, DE

8110 Request for examination paragraph 44
8120 Willingness to grant licenses paragraph 23
8131 Rejection