FR3120899B1 - CENTERING AND GUIDE DEVICE FOR AN AIRCRAFT TURBOMACHINE SHAFT - Google Patents

CENTERING AND GUIDE DEVICE FOR AN AIRCRAFT TURBOMACHINE SHAFT Download PDF

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Publication number
FR3120899B1
FR3120899B1 FR2102709A FR2102709A FR3120899B1 FR 3120899 B1 FR3120899 B1 FR 3120899B1 FR 2102709 A FR2102709 A FR 2102709A FR 2102709 A FR2102709 A FR 2102709A FR 3120899 B1 FR3120899 B1 FR 3120899B1
Authority
FR
France
Prior art keywords
ring
axis
centering
columns
aircraft turbomachine
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.)
Active
Application number
FR2102709A
Other languages
French (fr)
Other versions
FR3120899A1 (en
Inventor
Paul Ghislain Albert Levisse
Emmanuel Fabrice Marie Baret
Julien Fabien Patrick Becoulet
Alexandre Jean-Marie Tan-Kim
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.)
Safran Aircraft Engines SAS
Original Assignee
Safran Aircraft Engines SAS
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 Safran Aircraft Engines SAS filed Critical Safran Aircraft Engines SAS
Priority to FR2102709A priority Critical patent/FR3120899B1/en
Publication of FR3120899A1 publication Critical patent/FR3120899A1/en
Application granted granted Critical
Publication of FR3120899B1 publication Critical patent/FR3120899B1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/16—Arrangement of bearings; Supporting or mounting bearings in casings
    • F01D25/162—Bearing supports
    • F01D25/164—Flexible supports; Vibration damping means associated with the bearing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F02C7/06—Arrangements of bearings; Lubricating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
    • F04D29/056—Bearings
    • F04D29/059—Roller bearings
    • 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
    • F16C27/00—Elastic or yielding bearings or bearing supports, for exclusively rotary movement
    • F16C27/04—Ball or roller bearings, e.g. with resilient rolling bodies
    • F16C27/045—Ball or roller bearings, e.g. with resilient rolling bodies with a fluid film, e.g. squeeze film damping
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/023—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means
    • F16F15/0237—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means involving squeeze-film damping
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2240/00—Components
    • F05D2240/50—Bearings
    • F05D2240/54—Radial bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/10—Two-dimensional
    • F05D2250/12—Two-dimensional rectangular
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/30—Retaining components in desired mutual position
    • F05D2260/31—Retaining bolts or nuts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/96—Preventing, counteracting or reducing vibration or noise
    • 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
    • F16C2360/00—Engines or pumps
    • F16C2360/23—Gas turbine engines

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Support Of The Bearing (AREA)

Abstract

Dispositif de centrage et de guidage d’un arbre de turbomachine d’aéronef, ce dispositif comportant : - une bague externe (12) d’un palier à roulement (14), cette bague s’étendant autour d’un axe (X), - un support annulaire (16) de palier s’étendant autour de l’axe (X) et au moins en partie autour de la bague (12), - une série de colonnettes (40) de liaison de la bague au support, ces colonnettes étant réparties autour de l’axe (X) et s’étendant sensiblement parallèlement à cet axe, chacune de ces colonnettes comportant un corps (40c) de forme allongée et relié à une première extrémité longitudinale (40b) de fixation au support et à une seconde extrémité longitudinale (40a) de fixation à la bague, caractérisé en ce que le corps (40c) de chaque colonnette (40) a en section transversale une forme non axisymétrique. Figure pour l'abrégé : Figure 4Device for centering and guiding an aircraft turbomachine shaft, this device comprising: - an outer ring (12) of a rolling bearing (14), this ring extending around an axis (X) , - an annular bearing support (16) extending around the axis (X) and at least partly around the ring (12), - a series of columns (40) connecting the ring to the support, these columns being distributed around the axis (X) and extending substantially parallel to this axis, each of these columns comprising a body (40c) of elongated shape and connected to a first longitudinal end (40b) for fixing to the support and at a second longitudinal end (40a) for attachment to the ring, characterized in that the body (40c) of each post (40) has a non-axisymmetric cross-sectional shape. Figure for abstract: Figure 4

FR2102709A 2021-03-18 2021-03-18 CENTERING AND GUIDE DEVICE FOR AN AIRCRAFT TURBOMACHINE SHAFT Active FR3120899B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR2102709A FR3120899B1 (en) 2021-03-18 2021-03-18 CENTERING AND GUIDE DEVICE FOR AN AIRCRAFT TURBOMACHINE SHAFT

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2102709 2021-03-18
FR2102709A FR3120899B1 (en) 2021-03-18 2021-03-18 CENTERING AND GUIDE DEVICE FOR AN AIRCRAFT TURBOMACHINE SHAFT

Publications (2)

Publication Number Publication Date
FR3120899A1 FR3120899A1 (en) 2022-09-23
FR3120899B1 true FR3120899B1 (en) 2023-05-26

Family

ID=75539632

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2102709A Active FR3120899B1 (en) 2021-03-18 2021-03-18 CENTERING AND GUIDE DEVICE FOR AN AIRCRAFT TURBOMACHINE SHAFT

Country Status (1)

Country Link
FR (1) FR3120899B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3120902B1 (en) * 2021-03-18 2023-03-10 Safran Aircraft Engines CENTERING AND GUIDE DEVICE FOR AN AIRCRAFT TURBOMACHINE SHAFT

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1161763A (en) * 1980-12-11 1984-02-07 Wesley B. Hill Viscous damper with rotor centering means
DE19605971C2 (en) * 1996-02-17 1998-09-17 Mtu Muenchen Gmbh Bearing arrangement for rotating bodies
US7731426B2 (en) * 2007-04-27 2010-06-08 Honeywell International Inc. Rotor supports and systems
GB0922187D0 (en) * 2009-12-21 2010-02-03 Rolls Royce Plc Bearing assembly
FR3009843B1 (en) 2013-08-26 2015-09-25 Snecma SUPPORTING COLUMNS OF AN EXTERNAL ROLLING BEARING RING FOR AIRCRAFT TURBOMACHINE, AND METHOD OF MOUNTING THE SAME
DE102014115507A1 (en) * 2014-10-24 2016-04-28 Pfeiffer Vacuum Gmbh vacuum pump
FR3078370B1 (en) 2018-02-28 2020-02-14 Safran Helicopter Engines SET FOR A TURBOMACHINE
FR3091902B1 (en) * 2019-01-23 2021-07-02 Safran Aircraft Engines Device for centering and guiding in rotation a turbomachine shaft comprising several optimized damping fluid films

Also Published As

Publication number Publication date
FR3120899A1 (en) 2022-09-23

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