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
Application number
CH253886A
Other languages
German (de)
English (en)
Inventor
Heinrich Cap
Original Assignee
Papst Motoren Gmbh & 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 & Co Kg filed Critical Papst Motoren Gmbh & Co Kg
Priority to CH253886A priority Critical patent/CH676740A5/de
Priority to DE8708440U priority patent/DE8708440U1/de
Priority to DE19873720024 priority patent/DE3720024A1/de
Priority to GB8714376A priority patent/GB2192676B/en
Priority to GB9027376A priority patent/GB2236363B/en
Publication of CH676740A5 publication Critical patent/CH676740A5/de

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)
CH253886A 1986-06-24 1986-06-24 CH676740A5 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CH253886A CH676740A5 (fr) 1986-06-24 1986-06-24
DE8708440U DE8708440U1 (de) 1986-06-24 1987-06-16 Magnetische Flüssigkeitsdichtung
DE19873720024 DE3720024A1 (de) 1986-06-24 1987-06-16 Anordnung fuer eine magnetische fluessigkeitsdichtung
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 (fr) 1986-06-24 1986-06-24

Publications (1)

Publication Number Publication Date
CH676740A5 true CH676740A5 (fr) 1991-02-28

Family

ID=4236046

Family Applications (1)

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

Country Status (3)

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

Families Citing this family (4)

* 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
DE102014014770B4 (de) * 2014-10-10 2016-10-27 Sew-Eurodrive Gmbh & Co Kg Elektromotor mit einem Stator und Rotor
DE102019218446A1 (de) * 2019-11-28 2021-06-02 Volkswagen Aktiengesellschaft Elektromaschine mit reibungsarmer Luftspaltabdichtung und Kraftfahrzeug

Family Cites Families (6)

* 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
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
EP0182656A3 (fr) * 1984-11-20 1986-10-08 Ferrofluidics Corporation Appareil et procédé d'étanchéité ferrofluidique

Also Published As

Publication number Publication date
GB2192676B (en) 1991-07-31
DE3720024A1 (de) 1988-01-07
GB2192676A (en) 1988-01-20
DE8708440U1 (de) 1987-09-03
GB8714376D0 (en) 1987-07-22

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Legal Events

Date Code Title Description
PL Patent ceased