GB1413118A - Lubrication - Google Patents

Lubrication

Info

Publication number
GB1413118A
GB1413118A GB5778872A GB5778872A GB1413118A GB 1413118 A GB1413118 A GB 1413118A GB 5778872 A GB5778872 A GB 5778872A GB 5778872 A GB5778872 A GB 5778872A GB 1413118 A GB1413118 A GB 1413118A
Authority
GB
United Kingdom
Prior art keywords
lubricant
magnetized
acts
magnetizable
permanent magnet
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
GB5778872A
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.)
Godsill J K
Original Assignee
Godsill J K
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 to US00171691A priority Critical patent/US3746407A/en
Priority to AU49861/72A priority patent/AU472010B2/en
Priority claimed from AU49861/72A external-priority patent/AU472010B2/en
Priority claimed from DE2264874A external-priority patent/DE2264874C3/en
Application filed by Godsill J K filed Critical Godsill J K
Priority to GB5778872A priority patent/GB1413118A/en
Priority to FR7246625A priority patent/FR2212877A5/fr
Priority claimed from NL7300490A external-priority patent/NL7300490A/xx
Publication of GB1413118A publication Critical patent/GB1413118A/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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B21/56—Towing or pushing equipment
    • B63B21/58—Adaptations of hooks for towing; Towing-hook mountings
    • 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
    • F16C17/00—Sliding-contact bearings for exclusively rotary movement
    • F16C17/02—Sliding-contact bearings for exclusively rotary movement for radial load only
    • F16C17/026—Sliding-contact bearings for exclusively rotary movement for radial load only with helical grooves in the bearing surface to generate hydrodynamic pressure, e.g. herringbone grooves
    • 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
    • F16C33/106—Details of distribution or circulation inside the bearings, e.g. details of the bearing surfaces to affect flow or pressure of the liquid
    • F16C33/107—Grooves for generating pressure
    • 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
    • F16C33/106—Details of distribution or circulation inside the bearings, e.g. details of the bearing surfaces to affect flow or pressure of the liquid
    • F16C33/1075—Wedges, e.g. ramps or lobes, for generating pressure
    • 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
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/66—Special parts or details in view of lubrication
    • F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
    • F16C33/664—Retaining the liquid in or near the bearing
    • F16C33/6644—Retaining the liquid 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)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Rolling Contact Bearings (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)

Abstract

1413118 Bearings J K GODSILL (Litton Industries Inc) 14 Dec 1972 57788/72 Heading F2A A bearing assembly includes a magnetizable fluid as a lubricant and has means for producing a constraining magnetic field which acts to prevent leakage of the fluid from the assembly. As shown, a rotatable shaft 16 extends through axially aligned apertures 18, 20 in respective end portions 22, 24 of a permanent magnet 26 which is formed with a ring-shaped zone 30 filled with a magnetizable lubricant 32. The field produced by the magnets 26 acts on the lubricant 32 to develop leak proof magnetic seals at the gaps 34, 36. An electromagnet (42, 44) Fig. 2, not shown, may replace the permanent magnet 26. The bearing assembly may be in the form of a rolling bearing having a magnetized cage or a magnetized race, Figs. 9 and 10, not shown; or in the form of a combined thrust-and-journal bearing provided with one or a pair of thrust pads which co-operate with magnet pole shoes to define clearances filled with the lubricant, Figs. 3 and 8, not shown. The pole shoes may be constituted by bimetallic rings which flex with changes in temperature to allow for thermal expansion and contraction of the lubricant, which comprises an appropriate liquid carrier, e.g. water, silicone soils, mineral oils, dibutyl phthalate, combined with colloidal - size particles of magnetic materials, e.g. ferrite materials including garnets, spinels or magnetite.
GB5778872A 1971-08-13 1972-12-14 Lubrication Expired GB1413118A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US00171691A US3746407A (en) 1971-08-13 1971-08-13 Ferrohydrodynamic low friction bearing
AU49861/72A AU472010B2 (en) 1971-08-13 1972-12-08 Lubrication
GB5778872A GB1413118A (en) 1972-12-08 1972-12-14 Lubrication
FR7246625A FR2212877A5 (en) 1972-12-08 1972-12-28

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
AU49861/72A AU472010B2 (en) 1971-08-13 1972-12-08 Lubrication
DE2264874A DE2264874C3 (en) 1972-12-08 1972-12-08 Combined axial and radial plain bearing with magnetizable lubricant
GB5778872A GB1413118A (en) 1972-12-08 1972-12-14 Lubrication
NL7300490A NL7300490A (en) 1972-12-08 1973-01-12

Publications (1)

Publication Number Publication Date
GB1413118A true GB1413118A (en) 1975-11-05

Family

ID=30119345

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5778872A Expired GB1413118A (en) 1971-08-13 1972-12-14 Lubrication

Country Status (1)

Country Link
GB (1) GB1413118A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2467318A1 (en) * 1979-07-30 1981-04-17 Litton Systems Inc MAGNETIC OR FERRO-FLUID FLUID BEARING, METHOD FOR MANUFACTURING SAME, MAGNETIC FERROMAGNETIC STRUCTURE LOADING METHOD AND PERMANENT MAGNET COMPRISING SUCH A STRUCTURE
GB2149027A (en) * 1983-10-27 1985-06-05 Ferrofluidics Corp Ferrofluid bearing and seal apparatus
CN114364895A (en) * 2019-07-17 2022-04-15 斯凯孚公司 Sealed bearing assembly
CN114729668A (en) * 2019-10-07 2022-07-08 比弗罗斯特研发有限公司 Self-healing bearing device using electric or magneto-fluid

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2467318A1 (en) * 1979-07-30 1981-04-17 Litton Systems Inc MAGNETIC OR FERRO-FLUID FLUID BEARING, METHOD FOR MANUFACTURING SAME, MAGNETIC FERROMAGNETIC STRUCTURE LOADING METHOD AND PERMANENT MAGNET COMPRISING SUCH A STRUCTURE
GB2149027A (en) * 1983-10-27 1985-06-05 Ferrofluidics Corp Ferrofluid bearing and seal apparatus
CN114364895A (en) * 2019-07-17 2022-04-15 斯凯孚公司 Sealed bearing assembly
CN114729668A (en) * 2019-10-07 2022-07-08 比弗罗斯特研发有限公司 Self-healing bearing device using electric or magneto-fluid
US11976690B2 (en) 2019-10-07 2024-05-07 Bifröst Research And Development B.V. Self-healing bearing device using electric or magnetic fluids
CN114729668B (en) * 2019-10-07 2024-06-07 比弗罗斯特研发有限公司 Self-healing bearing device using electric or magnetic fluid

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee