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FR3146658B1 - Assembly comprising a shaft section guided by a flexibly held bearing - Google Patents

Assembly comprising a shaft section guided by a flexibly held bearing Download PDF

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Publication number
FR3146658B1
FR3146658B1 FR2302461A FR2302461A FR3146658B1 FR 3146658 B1 FR3146658 B1 FR 3146658B1 FR 2302461 A FR2302461 A FR 2302461A FR 2302461 A FR2302461 A FR 2302461A FR 3146658 B1 FR3146658 B1 FR 3146658B1
Authority
FR
France
Prior art keywords
assembly
shaft section
bearing
section guided
flexibly held
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
FR2302461A
Other languages
French (fr)
Other versions
FR3146658A1 (en
Inventor
Jonathan Jean-Pierre Rouffet
Luc Henri Chatenet
Quentin Pierre Henri Pigott
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
Safran Transmission Systems SAS
Original Assignee
Safran Aircraft Engines SAS
Safran Transmission Systems 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, Safran Transmission Systems SAS filed Critical Safran Aircraft Engines SAS
Priority to FR2302461A priority Critical patent/FR3146658B1/en
Publication of FR3146658A1 publication Critical patent/FR3146658A1/en
Application granted granted Critical
Publication of FR3146658B1 publication Critical patent/FR3146658B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/02—Blade-carrying members, e.g. rotors
    • F01D5/026—Shaft to shaft connections
    • 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
    • F02C7/36—Power transmission arrangements between the different shafts of the gas turbine plant, or between the gas-turbine plant and the power user
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02K—JET-PROPULSION PLANTS
    • F02K3/00—Plants including a gas turbine driving a compressor or a ducted fan
    • F02K3/02—Plants including a gas turbine driving a compressor or a ducted fan in which part of the working fluid by-passes the turbine and combustion chamber
    • F02K3/04—Plants including a gas turbine driving a compressor or a ducted fan in which part of the working fluid by-passes the turbine and combustion chamber the plant including ducted fans, i.e. fans with high volume, low pressure outputs, for augmenting the jet thrust, e.g. of double-flow type
    • F02K3/06—Plants including a gas turbine driving a compressor or a ducted fan in which part of the working fluid by-passes the turbine and combustion chamber the plant including ducted fans, i.e. fans with high volume, low pressure outputs, for augmenting the jet thrust, e.g. of double-flow type with front fan
    • 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
    • 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
    • F05D2240/60—Shafts
    • F05D2240/62—Flexible
    • 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
    • F05D2260/40—Transmission of power
    • F05D2260/403—Transmission of power through the shape of the drive components
    • F05D2260/4031—Transmission of power through the shape of the drive components as in toothed gearing
    • F05D2260/40311—Transmission of power through the shape of the drive components as in toothed gearing of the epicyclical, planetary or differential type
    • 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
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/24—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for radial load mainly
    • F16C19/26—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for radial load mainly with a single row of rollers
    • 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
    • F16C2326/00—Articles relating to transporting
    • F16C2326/43—Aeroplanes; Helicopters
    • 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
    • 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
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
    • F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
    • F16C35/067—Fixing them in a housing

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Support Of The Bearing (AREA)

Abstract

L’invention concerne un ensemble (60) de système propulsif pour aéronef comportant un élément structurel fixe (73) et un arbre (54) en rotation autour d’un axe longitudinal (X) relativement à l’ensemble structurel, l’arbre (54) comprenant deux organes d’accouplement flexibles (79) et un tronçon intermédiaire (76) interposé entre les organes d’accouplement flexibles (79), dans lequel l’ensemble (60) comprend en outre un palier (92) guidant le tronçon intermédiaire (76) en rotation relativement à l’élément structurel (73), ledit palier (92) étant relié à l’élément structurel (73) par l’intermédiaire d’un dispositif de liaison flexible (90). Figure pour l’abrégé : Fig. 3The invention relates to an assembly (60) of a propulsion system for an aircraft comprising a fixed structural element (73) and a shaft (54) rotating about a longitudinal axis (X) relative to the structural assembly, the shaft (54) comprising two flexible coupling members (79) and an intermediate section (76) interposed between the flexible coupling members (79), in which the assembly (60) further comprises a bearing (92) guiding the intermediate section (76) in rotation relative to the structural element (73), said bearing (92) being connected to the structural element (73) via a flexible connecting device (90). Abstract: Fig. 3

FR2302461A 2023-03-16 2023-03-16 Assembly comprising a shaft section guided by a flexibly held bearing Active FR3146658B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR2302461A FR3146658B1 (en) 2023-03-16 2023-03-16 Assembly comprising a shaft section guided by a flexibly held bearing

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2302461A FR3146658B1 (en) 2023-03-16 2023-03-16 Assembly comprising a shaft section guided by a flexibly held bearing
FR2302461 2023-03-16

Publications (2)

Publication Number Publication Date
FR3146658A1 FR3146658A1 (en) 2024-09-20
FR3146658B1 true FR3146658B1 (en) 2025-02-14

Family

ID=86604543

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2302461A Active FR3146658B1 (en) 2023-03-16 2023-03-16 Assembly comprising a shaft section guided by a flexibly held bearing

Country Status (1)

Country Link
FR (1) FR3146658B1 (en)

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3708596A1 (en) * 1987-03-17 1988-09-29 Mtu Muenchen Gmbh GAS TURBINE SYSTEM FOR HELICOPTERS
US5755622A (en) * 1993-04-26 1998-05-26 Mitsubish Jukogyo Kabushiki Kaisha Centrifugally operated axial and torsional vibration reducer for a diaphragm coupling
US9784181B2 (en) * 2009-11-20 2017-10-10 United Technologies Corporation Gas turbine engine architecture with low pressure compressor hub between high and low rotor thrust bearings
US9541007B2 (en) * 2011-04-15 2017-01-10 United Technologies Corporation Coupling shaft for gas turbine fan drive gear system
FR2979121B1 (en) * 2011-08-18 2013-09-06 Snecma MECHANICAL TRANSMISSION DEVICE FOR THE ROTATION DRIVE OF THE CONTRAROTATIVE PROPELLERS OF A DOUBLE PROPELLER TURBOPROPULSOR.
WO2015017041A1 (en) * 2013-07-31 2015-02-05 United Technologies Corporation Gas turbine engine shaft bearing configuration
US20170096941A1 (en) * 2015-10-06 2017-04-06 General Electric Company Gas turbine gearbox input shaft
FR3061242B1 (en) * 2016-12-23 2019-05-17 Safran Aircraft Engines TURBOMACHINE COMPRISING A MEANS FOR DECOUPLING A BLOWER
FR3086343B1 (en) * 2018-09-24 2020-09-04 Safran Aircraft Engines TURBOMACHINE WITH REDUCER FOR AN AIRCRAFT
FR3087819B1 (en) * 2018-10-26 2020-11-13 Safran Aircraft Engines AIRCRAFT TURBOMACHINE EQUIPPED WITH AN ELECTRIC MACHINE
FR3108947B1 (en) * 2020-04-01 2022-08-05 Safran Aircraft Engines REDUCER MODULE FOR AN AIRCRAFT TURBOMACHINE

Also Published As

Publication number Publication date
FR3146658A1 (en) 2024-09-20

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