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GB1263054A - Improvements in or relating to gas bearings - Google Patents

Improvements in or relating to gas bearings

Info

Publication number
GB1263054A
GB1263054A GB6686/68A GB668668A GB1263054A GB 1263054 A GB1263054 A GB 1263054A GB 6686/68 A GB6686/68 A GB 6686/68A GB 668668 A GB668668 A GB 668668A GB 1263054 A GB1263054 A GB 1263054A
Authority
GB
United Kingdom
Prior art keywords
porous
additive
ceramic
porosity
feb
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
GB6686/68A
Inventor
David Thomas Livey
Alan Joseph Munday
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.)
UK Atomic Energy Authority
Original Assignee
UK Atomic Energy Authority
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 UK Atomic Energy Authority filed Critical UK Atomic Energy Authority
Priority to GB6686/68A priority Critical patent/GB1263054A/en
Publication of GB1263054A publication Critical patent/GB1263054A/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
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/06—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
    • F16C32/0603—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a gas cushion, e.g. an air cushion
    • F16C32/0614—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a gas cushion, e.g. an air cushion the gas being supplied under pressure, e.g. aerostatic bearings
    • F16C32/0618—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a gas cushion, e.g. an air cushion the gas being supplied under pressure, e.g. aerostatic bearings via porous material
    • 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
    • F16C2202/00—Solid materials defined by their properties
    • F16C2202/02—Mechanical properties
    • F16C2202/10—Porosity

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Sliding-Contact Bearings (AREA)

Abstract

1,263,054. Gas bearing. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. 10 Feb., 1969 [10 Feb., 1968], No. 6686/68. Heading F2A. One member of a gas bearing comprises a unitary body of ceramic material part of which is porous, and part is non-porous. For journal bearings, the body is in the form of a cylindrical sleeve with the ends non-porous and the centre portion porous. The body may be made by placing in a die a combination of two ceramic matrices, one of which on sintering produces the non-porous portion of the body, and the other, the porous portion. The porosity of the material may be regulated by incorporating into the ceramic matrix an additive which is removed at a latter stage. The additive may be a volatile binder or a non-volatile carbonaceous material. If a synthetic fibre is used as the additive, the porosity can be controlled directionally. The carbonaceous additives may be removed by heating in an oxidizing atmosphere at 500- 600‹ C., and the body may subsequently be sintered at 1600-1800‹ C. An example describes the production of an alumina sleeve containing 0À25% by wt. magnesia, nylon being used as the additive.
GB6686/68A 1968-02-10 1968-02-10 Improvements in or relating to gas bearings Expired GB1263054A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB6686/68A GB1263054A (en) 1968-02-10 1968-02-10 Improvements in or relating to gas bearings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB6686/68A GB1263054A (en) 1968-02-10 1968-02-10 Improvements in or relating to gas bearings

Publications (1)

Publication Number Publication Date
GB1263054A true GB1263054A (en) 1972-02-09

Family

ID=9818953

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6686/68A Expired GB1263054A (en) 1968-02-10 1968-02-10 Improvements in or relating to gas bearings

Country Status (1)

Country Link
GB (1) GB1263054A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0180154A2 (en) * 1984-10-30 1986-05-07 Heinzl, Joachim, Prof. Dr.-Ing. Aerostatic bearing
US4710034A (en) * 1985-06-10 1987-12-01 Interatom Gmbh Double-conical static pressure-type gas bearing
EP0672839A1 (en) * 1994-02-03 1995-09-20 Joachim Prof. Dr.-Ing. Heinzl Manufacturing method of at least one micro-nozzle of an aerostatic bearing

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0180154A2 (en) * 1984-10-30 1986-05-07 Heinzl, Joachim, Prof. Dr.-Ing. Aerostatic bearing
EP0180154A3 (en) * 1984-10-30 1987-09-30 Heinzl, Joachim, Prof. Dr.-Ing. Aerostatic bearing
US4710034A (en) * 1985-06-10 1987-12-01 Interatom Gmbh Double-conical static pressure-type gas bearing
EP0672839A1 (en) * 1994-02-03 1995-09-20 Joachim Prof. Dr.-Ing. Heinzl Manufacturing method of at least one micro-nozzle of an aerostatic bearing
US5564063A (en) * 1994-02-03 1996-10-08 Joachim Heinzl Method for manufacture of at least one micronozzle in an aerostatic bearing

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