GB2236363B - Magnetic fluid seal apparatus - Google Patents

Magnetic fluid seal apparatus

Info

Publication number
GB2236363B
GB2236363B GB9027376A GB9027376A GB2236363B GB 2236363 B GB2236363 B GB 2236363B GB 9027376 A GB9027376 A GB 9027376A GB 9027376 A GB9027376 A GB 9027376A GB 2236363 B GB2236363 B GB 2236363B
Authority
GB
United Kingdom
Prior art keywords
magnetic fluid
fluid seal
seal apparatus
magnetic
seal
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.)
Expired - Fee Related
Application number
GB9027376A
Other versions
GB9027376D0 (en
GB2236363A (en
Inventor
Heinrich 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.)
Ebm Papst St Georgen 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
Priority claimed from CH253886A external-priority patent/CH676740A5/de
Application filed by Papst Motoren GmbH and Co KG filed Critical Papst Motoren GmbH and Co KG
Publication of GB9027376D0 publication Critical patent/GB9027376D0/en
Publication of GB2236363A publication Critical patent/GB2236363A/en
Application granted granted Critical
Publication of GB2236363B publication Critical patent/GB2236363B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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)
GB9027376A 1986-06-24 1990-12-18 Magnetic fluid seal apparatus Expired - Fee Related GB2236363B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH253886A CH676740A5 (en) 1986-06-24 1986-06-24
GB8714376A GB2192676B (en) 1986-06-24 1987-06-19 A magnetic fluid seal apparatus

Publications (3)

Publication Number Publication Date
GB9027376D0 GB9027376D0 (en) 1991-02-06
GB2236363A GB2236363A (en) 1991-04-03
GB2236363B true GB2236363B (en) 1991-07-31

Family

ID=25690705

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9027376A Expired - Fee Related GB2236363B (en) 1986-06-24 1990-12-18 Magnetic fluid seal apparatus

Country Status (1)

Country Link
GB (1) GB2236363B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU4553200A (en) * 1999-04-20 2000-11-02 Berlin Heart Ag Device for axially delivering fluidic media

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB680233A (en) * 1948-12-23 1952-10-01 Adolph Razdowitz Improvements in or relating to sealing devices for joints
GB2104165A (en) * 1981-06-15 1983-03-02 Rigaku Denki Co Ltd Magnetic fluid sealing device
GB2130662A (en) * 1982-09-16 1984-06-06 Rigaku Keisoku Kk Magnetic fluid sealing device
EP0182656A2 (en) * 1984-11-20 1986-05-28 Ferrofluidics Corporation Ferrofluid seal apparatus and method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB680233A (en) * 1948-12-23 1952-10-01 Adolph Razdowitz Improvements in or relating to sealing devices for joints
GB2104165A (en) * 1981-06-15 1983-03-02 Rigaku Denki Co Ltd Magnetic fluid sealing device
GB2130662A (en) * 1982-09-16 1984-06-06 Rigaku Keisoku Kk Magnetic fluid sealing device
EP0182656A2 (en) * 1984-11-20 1986-05-28 Ferrofluidics Corporation Ferrofluid seal apparatus and method

Also Published As

Publication number Publication date
GB9027376D0 (en) 1991-02-06
GB2236363A (en) 1991-04-03

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20020619