GB783881A - Improvements relating to shaft and like seals - Google Patents

Improvements relating to shaft and like seals

Info

Publication number
GB783881A
GB783881A GB652654A GB652654A GB783881A GB 783881 A GB783881 A GB 783881A GB 652654 A GB652654 A GB 652654A GB 652654 A GB652654 A GB 652654A GB 783881 A GB783881 A GB 783881A
Authority
GB
United Kingdom
Prior art keywords
magnetic
pole pieces
shaft
seal
fluid
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
Application number
GB652654A
Inventor
James William Walley
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.)
Metropolitan Vickers Electrical Co Ltd
Original Assignee
Metropolitan Vickers Electrical Co Ltd
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 Metropolitan Vickers Electrical Co Ltd filed Critical Metropolitan Vickers Electrical Co Ltd
Priority to GB652654A priority Critical patent/GB783881A/en
Publication of GB783881A publication Critical patent/GB783881A/en
Expired 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
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/06—Sliding surface mainly made of metal
    • F16C33/10—Construction relative to lubrication
    • F16C33/102—Construction relative to lubrication with grease as lubricant
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/06—Sliding surface mainly made of metal
    • F16C33/10—Construction relative to lubrication
    • F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
    • F16C33/103—Construction relative to lubrication with liquid, e.g. oil, as lubricant retained in or near the bearing
    • F16C33/1035—Construction relative to lubrication with liquid, e.g. oil, as lubricant retained in or near the bearing by a magnetic field acting on a magnetic liquid

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)

Abstract

783,881. Stuffing-box substitutes. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. March 4, 1955 [March 5, 1954], No. 6526/54. Class 122 (5). A seal between relatively movable parts such as a shaft 1 and bearing housing 7 is provided by a permanent or electromagnet 6 the poles or attached pole pieces 8, 9 of the magnets being spaced only a few thousandths of an inch from the shaft and these spaces being filled with a magnetic fluid which is kept rigid by the magnetic field. The magnetic fluid comprises finely divided materials including magnetic particles in grease or oil and may be as described in Specification 756,563, [Group XXXV]. The pole pieces may be bevelled to concentrate the magnetic field towards their centre-lines or they may have peripheral slots embracing collars on the shaft so that centrifugal and magnetic forces on the fluid are combined. A graded pressure difference between the inside and outside of a seal may be provided by maintaining a partial vacuum or pressure between the pole pieces or by providing several spaced units in series and maintaining a partial vacuum or pressure between the several pole pieces or in the spaces between the units. For sealing two relatively rotatable flanged tubes 21, 22, Fig. 6, the pole pieces 25, 26 are radially spaced. Where both parts to be sealed are non-magnetic, a magnetic section may be fitted to one part. The magnet may be a flat plate with semi-circular pole pieces through which a shaft passes. As well as gases, the seal is effective against leakage of liquids that are not a solvent of the grease or oil in the magnetic fluid.
GB652654A 1954-03-05 1954-03-05 Improvements relating to shaft and like seals Expired GB783881A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB652654A GB783881A (en) 1954-03-05 1954-03-05 Improvements relating to shaft and like seals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB652654A GB783881A (en) 1954-03-05 1954-03-05 Improvements relating to shaft and like seals

Publications (1)

Publication Number Publication Date
GB783881A true GB783881A (en) 1957-10-02

Family

ID=9816112

Family Applications (1)

Application Number Title Priority Date Filing Date
GB652654A Expired GB783881A (en) 1954-03-05 1954-03-05 Improvements relating to shaft and like seals

Country Status (1)

Country Link
GB (1) GB783881A (en)

Cited By (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2034213A1 (en) * 1969-10-10 1971-05-06 Ferrofluidics Corp Magnetic liquid seal
US3620584A (en) * 1970-05-25 1971-11-16 Ferrofluidics Corp Magnetic fluid seals
US3726574A (en) * 1971-08-13 1973-04-10 Litton Systems Inc Ferrohydrodynamic low-friction bearing with volume compensation
DE2260080A1 (en) * 1972-12-08 1974-06-20 Litton Industries Inc LUBRICATION ARRANGEMENT
JPS50114561U (en) * 1974-03-05 1975-09-18
US4200296A (en) * 1978-11-29 1980-04-29 Ferrofluidics Corporation Ferrofluid centrifugal seal
JPS5580569U (en) * 1978-11-29 1980-06-03
EP0012556A1 (en) * 1978-12-11 1980-06-25 Frederick D. Ezekiel Magnetic liquid shaft seal
EP0018791A1 (en) * 1979-04-26 1980-11-12 Ferrofluidics Corporation Magnetic seal apparatus for magnetically permeable shaft
US4254961A (en) * 1979-04-30 1981-03-10 Litton Systems, Inc. Seal for fluid bearings
JPS5715152A (en) * 1980-07-02 1982-01-26 Nippon Seiko Kk Sealing apparatus
WO1982000695A1 (en) * 1980-08-19 1982-03-04 Mechanical Tech Inc Plural fluid magnetic/centrifugal seal
US4340233A (en) * 1980-11-19 1982-07-20 Ferrofluidics Corporation Ferrofluid seal apparatus
US4357023A (en) * 1980-11-19 1982-11-02 Ferrofluidics Corporation Ferrofluid rotary-shaft seal apparatus and method
JPS57208358A (en) * 1981-06-15 1982-12-21 Rigaku Denki Kk Shaft sealing device using magnetic fluid
JPS5828159U (en) * 1981-08-18 1983-02-23 日本精工株式会社 Magnetic fluid seal device
US4386784A (en) * 1980-11-25 1983-06-07 Rolls-Royce Limited Magnetic seal with magnetic powder held in pole piece gap
WO1983003453A1 (en) * 1982-03-25 1983-10-13 Mechanical Technology, Incorporated Ferrofin magnetic seal
DE3332818A1 (en) * 1982-09-16 1984-03-22 Rigaku Keisoku K.K., Tokyo SEALING DEVICE WITH MAGNETIC LIQUID
EP0127472A2 (en) * 1983-05-25 1984-12-05 Ferrofluidics Corporation Ferrofluid-pole-piece magnetic apparatus and method of manufacture thereof
GB2145169A (en) * 1983-08-16 1985-03-20 Atomic Energy Authority Uk A magnetic fluid seal
US4506895A (en) * 1984-08-29 1985-03-26 Ferrofluidics Corporation Self-activating ferrofluid seal apparatus and method of use
EP0136149A2 (en) * 1983-09-19 1985-04-03 Technicare Corporation High vacuum rotating anode x-ray tube
EP0182656A2 (en) * 1984-11-20 1986-05-28 Ferrofluidics Corporation Ferrofluid seal apparatus and method
US4645960A (en) * 1979-07-30 1987-02-24 Litton Systems, Inc. Ferro-fluid bearing
US4824122A (en) * 1987-03-02 1989-04-25 Ferrofluidics Corporation Compact magnetic fluid low pressure seal
EP0414294A1 (en) * 1989-08-17 1991-02-27 SKF Industrial Trading & Development Co, B.V. Sealing and friction bearing unit containing a magnetic fluid
US5593164A (en) * 1992-10-08 1997-01-14 Ferrofluidics Corporation Ferrofluidic seal centering ring
US5806856A (en) * 1992-08-27 1998-09-15 Ferrofluidics Corporation On-site fillable liquid magnetic seal
WO2005047741A2 (en) 2003-10-29 2005-05-26 Allweiler Ag Device and method for guiding at least two flow media
DE102005042451A1 (en) * 2005-09-06 2007-03-15 Vacuubrand Gmbh + Co Kg Vacuum pumping device for use as oil-lubricated rotary vane pump, has drive and rotary units arranged such that transient area has sealing units separating conveying area from drive area, where one of sealing units is ferrous fluid seal
US7674089B2 (en) 2003-10-29 2010-03-09 Allweiler Ag Device and method for guiding at least two flow media
CN1875211B (en) * 2003-10-29 2010-06-02 奥尔韦勒公司 Device and method for conducting at least two floating medium
DE10218937B4 (en) * 2002-04-27 2013-04-25 Schaeffler Technologies AG & Co. KG Protective device for a rolling bearing with speed measurement
CN103256389A (en) * 2013-05-30 2013-08-21 湘潭电机股份有限公司 Magnetic type sealing device
CN106195026A (en) * 2016-09-09 2016-12-07 广西科技大学 A kind of bearing cap device for sealing magnetic fluid

Cited By (51)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2034213A1 (en) * 1969-10-10 1971-05-06 Ferrofluidics Corp Magnetic liquid seal
US3620584A (en) * 1970-05-25 1971-11-16 Ferrofluidics Corp Magnetic fluid seals
US3726574A (en) * 1971-08-13 1973-04-10 Litton Systems Inc Ferrohydrodynamic low-friction bearing with volume compensation
DE2260080A1 (en) * 1972-12-08 1974-06-20 Litton Industries Inc LUBRICATION ARRANGEMENT
JPS50114561U (en) * 1974-03-05 1975-09-18
JPS5580569U (en) * 1978-11-29 1980-06-03
JPS5612445Y2 (en) * 1978-11-29 1981-03-23
US4200296A (en) * 1978-11-29 1980-04-29 Ferrofluidics Corporation Ferrofluid centrifugal seal
EP0012556A1 (en) * 1978-12-11 1980-06-25 Frederick D. Ezekiel Magnetic liquid shaft seal
US4293137A (en) * 1978-12-11 1981-10-06 Ezekiel Frederick D Magnetic liquid shaft sealing
EP0018791A1 (en) * 1979-04-26 1980-11-12 Ferrofluidics Corporation Magnetic seal apparatus for magnetically permeable shaft
US4254961A (en) * 1979-04-30 1981-03-10 Litton Systems, Inc. Seal for fluid bearings
US4645960A (en) * 1979-07-30 1987-02-24 Litton Systems, Inc. Ferro-fluid bearing
JPS6313046B2 (en) * 1980-07-02 1988-03-23 Nippon Seiko Kk
JPS5715152A (en) * 1980-07-02 1982-01-26 Nippon Seiko Kk Sealing apparatus
WO1982000695A1 (en) * 1980-08-19 1982-03-04 Mechanical Tech Inc Plural fluid magnetic/centrifugal seal
US4357023A (en) * 1980-11-19 1982-11-02 Ferrofluidics Corporation Ferrofluid rotary-shaft seal apparatus and method
US4340233A (en) * 1980-11-19 1982-07-20 Ferrofluidics Corporation Ferrofluid seal apparatus
US4386784A (en) * 1980-11-25 1983-06-07 Rolls-Royce Limited Magnetic seal with magnetic powder held in pole piece gap
JPS6143588B2 (en) * 1981-06-15 1986-09-29 Rigaku Denki Co Ltd
JPS57208358A (en) * 1981-06-15 1982-12-21 Rigaku Denki Kk Shaft sealing device using magnetic fluid
DE3222293A1 (en) * 1981-06-15 1982-12-30 Rigaku Denki K.K., Tokyo MAGNETIC LIQUID SEALING DEVICE
JPS5828159U (en) * 1981-08-18 1983-02-23 日本精工株式会社 Magnetic fluid seal device
JPS623579Y2 (en) * 1981-08-18 1987-01-27
EP0104238A1 (en) * 1982-03-25 1984-04-04 Mechanical Technology Incorporated Ferrofin magnetic seal
EP0104238A4 (en) * 1982-03-25 1984-08-10 Mechanical Tech Inc Ferrofin magnetic seal.
US4440402A (en) * 1982-03-25 1984-04-03 Mechanical Technology Incorporated Ferrofin magnetic seal with opposed fin-like projections
WO1983003453A1 (en) * 1982-03-25 1983-10-13 Mechanical Technology, Incorporated Ferrofin magnetic seal
DE3332818A1 (en) * 1982-09-16 1984-03-22 Rigaku Keisoku K.K., Tokyo SEALING DEVICE WITH MAGNETIC LIQUID
EP0127472A2 (en) * 1983-05-25 1984-12-05 Ferrofluidics Corporation Ferrofluid-pole-piece magnetic apparatus and method of manufacture thereof
EP0127472A3 (en) * 1983-05-25 1985-08-28 Ferrofluidics Corporation Ferrofluid-pole-piece magnetic apparatus and method of manufacture thereof
GB2145169A (en) * 1983-08-16 1985-03-20 Atomic Energy Authority Uk A magnetic fluid seal
EP0136149A2 (en) * 1983-09-19 1985-04-03 Technicare Corporation High vacuum rotating anode x-ray tube
EP0136149A3 (en) * 1983-09-19 1986-02-26 Technicare Corporation High vacuum rotating anode x-ray tube
US4506895A (en) * 1984-08-29 1985-03-26 Ferrofluidics Corporation Self-activating ferrofluid seal apparatus and method of use
EP0182656A2 (en) * 1984-11-20 1986-05-28 Ferrofluidics Corporation Ferrofluid seal apparatus and method
EP0182656A3 (en) * 1984-11-20 1986-10-08 Ferrofluidics Corporation Ferrofluid seal apparatus and method
US4824122A (en) * 1987-03-02 1989-04-25 Ferrofluidics Corporation Compact magnetic fluid low pressure seal
EP0414294A1 (en) * 1989-08-17 1991-02-27 SKF Industrial Trading & Development Co, B.V. Sealing and friction bearing unit containing a magnetic fluid
US5806856A (en) * 1992-08-27 1998-09-15 Ferrofluidics Corporation On-site fillable liquid magnetic seal
US5593164A (en) * 1992-10-08 1997-01-14 Ferrofluidics Corporation Ferrofluidic seal centering ring
DE10218937B4 (en) * 2002-04-27 2013-04-25 Schaeffler Technologies AG & Co. KG Protective device for a rolling bearing with speed measurement
WO2005047741A2 (en) 2003-10-29 2005-05-26 Allweiler Ag Device and method for guiding at least two flow media
US7674089B2 (en) 2003-10-29 2010-03-09 Allweiler Ag Device and method for guiding at least two flow media
CN1875211B (en) * 2003-10-29 2010-06-02 奥尔韦勒公司 Device and method for conducting at least two floating medium
WO2005047741A3 (en) * 2003-10-29 2005-08-11 Allweiler Ag Device and method for guiding at least two flow media
DE102005042451A1 (en) * 2005-09-06 2007-03-15 Vacuubrand Gmbh + Co Kg Vacuum pumping device for use as oil-lubricated rotary vane pump, has drive and rotary units arranged such that transient area has sealing units separating conveying area from drive area, where one of sealing units is ferrous fluid seal
DE102005042451B4 (en) * 2005-09-06 2007-07-26 Vacuubrand Gmbh + Co Kg Vacuum pump device
CN103256389A (en) * 2013-05-30 2013-08-21 湘潭电机股份有限公司 Magnetic type sealing device
CN106195026A (en) * 2016-09-09 2016-12-07 广西科技大学 A kind of bearing cap device for sealing magnetic fluid
CN106195026B (en) * 2016-09-09 2018-03-27 广西科技大学 A kind of bearing cap device for sealing magnetic fluid

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