FR2463853B1 - Dispositif de support d'un element tournant pouvant etre soumis a des balourds importants - Google Patents

Dispositif de support d'un element tournant pouvant etre soumis a des balourds importants

Info

Publication number
FR2463853B1
FR2463853B1 FR8018114A FR8018114A FR2463853B1 FR 2463853 B1 FR2463853 B1 FR 2463853B1 FR 8018114 A FR8018114 A FR 8018114A FR 8018114 A FR8018114 A FR 8018114A FR 2463853 B1 FR2463853 B1 FR 2463853B1
Authority
FR
France
Prior art keywords
balances
subject
important
supporting
rotating element
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
FR8018114A
Other languages
English (en)
Other versions
FR2463853A1 (fr
Inventor
Louis Isadore Zirin
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of FR2463853A1 publication Critical patent/FR2463853A1/fr
Application granted granted Critical
Publication of FR2463853B1 publication Critical patent/FR2463853B1/fr
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C27/00Elastic or yielding bearings or bearing supports, for exclusively rotary movement
    • F16C27/04Ball or roller bearings, e.g. with resilient rolling bodies
    • F16C27/045Ball or roller bearings, e.g. with resilient rolling bodies with a fluid film, e.g. squeeze film damping
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01DNON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D21/00Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
    • F01D21/04Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for responsive to undesired position of rotor relative to stator or to breaking-off of a part of the rotor, e.g. indicating such position
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01DNON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/16Arrangement of bearings; Supporting or mounting bearings in casings
    • F01D25/162Bearing supports
    • F01D25/164Flexible supports; Vibration damping means associated with the bearing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22Bearings 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
    • F16C19/24Bearings 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
    • F16C19/26Bearings 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02Suppression 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
    • F16F15/023Suppression 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
    • F16F15/0237Suppression 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2360/00Engines or pumps
    • F16C2360/23Gas turbine engines
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C35/00Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/04Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
    • F16C35/06Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
    • F16C35/07Fixing them on the shaft or housing with interposition of an element
    • F16C35/077Fixing them on the shaft or housing with interposition of an element between housing and outer race ring

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Support Of The Bearing (AREA)
  • Mounting Of Bearings Or Others (AREA)
  • Rolling Contact Bearings (AREA)
FR8018114A 1979-08-23 1980-08-19 Dispositif de support d'un element tournant pouvant etre soumis a des balourds importants Expired FR2463853B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/069,196 US4289360A (en) 1979-08-23 1979-08-23 Bearing damper system

Publications (2)

Publication Number Publication Date
FR2463853A1 FR2463853A1 (fr) 1981-02-27
FR2463853B1 true FR2463853B1 (fr) 1986-07-11

Family

ID=22087355

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8018114A Expired FR2463853B1 (fr) 1979-08-23 1980-08-19 Dispositif de support d'un element tournant pouvant etre soumis a des balourds importants

Country Status (6)

Country Link
US (1) US4289360A (fr)
JP (1) JPS5642721A (fr)
DE (1) DE3031562A1 (fr)
FR (1) FR2463853B1 (fr)
GB (1) GB2058245B (fr)
IT (1) IT1132285B (fr)

Families Citing this family (136)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4324441A (en) * 1980-10-24 1982-04-13 Rouverol William S Rolling contact element
US4353604A (en) * 1980-12-11 1982-10-12 United Technologies Corporation Viscous/friction damper
FR2504980B1 (fr) * 1981-04-29 1985-06-14 Snecma Montage de palier, en particulier pour turbomachines
US4386812A (en) * 1981-07-06 1983-06-07 Marathon Electric Manufacturing Corp. Bearing lock for a dynamoelectric machine
JPS5910520U (ja) * 1982-07-12 1984-01-23 石川島播磨重工業株式会社 軸受用弾性支持バネ
US4570045A (en) * 1984-03-08 1986-02-11 Jeppson Morris R Conveyorized microwave heating chamber with dielectric wall structure
GB8421142D0 (en) * 1984-08-20 1984-09-26 Brown R D Damping device
JPH028102Y2 (fr) * 1985-02-07 1990-02-27
US4872767A (en) * 1985-04-03 1989-10-10 General Electric Company Bearing support
JPS6375341A (ja) * 1986-09-17 1988-04-05 Fujio Hisashi ピストンピンのないピストンをもつレシプロエンジン
DE4134604C2 (de) * 1991-10-19 2000-01-13 Schaeffler Waelzlager Ohg Wälzlager mit Geräuschdämpfung
DE4227366A1 (de) * 1992-08-19 1994-02-24 Schaeffler Waelzlager Kg Lagerung mit Dämpfung
DE4424640A1 (de) * 1994-07-13 1996-01-18 Abb Management Ag Lagerung eines Abgasturboladers
FR2749883B1 (fr) * 1996-06-13 1998-07-31 Snecma Procede et support de palier permettant de maintenir en fonctionnement un turbomoteur pour aeronef apres apparition d'un balourd accidentel sur un rotor
GB2320526B (en) * 1996-12-20 2000-09-20 Rolls Royce Plc Ducted fan gas turbine engine
GB2323637B (en) * 1997-03-25 2000-12-13 Rolls Royce Plc Ducted fan gas turbine engine
US5791789A (en) * 1997-04-24 1998-08-11 United Technologies Corporation Rotor support for a turbine engine
US6332752B2 (en) 1997-06-27 2001-12-25 Ebara Corporation Turbo-molecular pump
US5971706A (en) * 1997-12-03 1999-10-26 General Electric Company Inter-rotor bearing assembly
US6786439B2 (en) * 2000-11-15 2004-09-07 Diamond Z Manufacturing Retractable rod screens
US6439772B1 (en) * 2000-12-01 2002-08-27 General Electric Company Method and apparatus for supporting rotor assembly bearings
US6428269B1 (en) 2001-04-18 2002-08-06 United Technologies Corporation Turbine engine bearing support
US6540483B2 (en) 2001-08-27 2003-04-01 General Electric Company Methods and apparatus for bearing outer race axial retention
DE10202977C1 (de) * 2002-01-26 2003-10-30 Mtu Aero Engines Gmbh Drehlagerung mit einer Sollbruchstelle
GB2394015A (en) * 2002-10-12 2004-04-14 Rolls Royce Plc Powerplant shaft with vibration damping device
FR2846379B1 (fr) * 2002-10-23 2005-01-21 Snecma Moteurs Systeme de decouplage par charge explosive d'une soufflante d'un turboreacteur
US6910863B2 (en) * 2002-12-11 2005-06-28 General Electric Company Methods and apparatus for assembling a bearing assembly
DE10330829B4 (de) * 2003-07-08 2012-08-23 Mtu Aero Engines Gmbh Lageranordnung für eine Gasturbine
FR2866068B1 (fr) * 2004-02-06 2006-07-07 Snecma Moteurs Turboreacteur a soufflante solidaire d'un arbre d'entrainement supporte par un premier et un deuxieme paliers
US7097413B2 (en) * 2004-05-12 2006-08-29 United Technologies Corporation Bearing support
DE102005003986A1 (de) * 2005-01-28 2006-08-03 Schaeffler Kg Lager
US8667688B2 (en) 2006-07-05 2014-03-11 United Technologies Corporation Method of assembly for gas turbine fan drive gear system
US7704178B2 (en) 2006-07-05 2010-04-27 United Technologies Corporation Oil baffle for gas turbine fan drive gear system
US9976437B2 (en) 2006-08-15 2018-05-22 United Technologies Corporation Epicyclic gear train
US8753243B2 (en) 2006-08-15 2014-06-17 United Technologies Corporation Ring gear mounting arrangement with oil scavenge scheme
US10107231B2 (en) 2006-08-15 2018-10-23 United Technologies Corporation Gas turbine engine with geared architecture
WO2008045072A1 (fr) 2006-10-12 2008-04-17 United Technologies Corporation Buse d'éjection à section variable intégrée à double cascade de fonctions et inverseur de poussée
US20080273961A1 (en) 2007-03-05 2008-11-06 Rosenkrans William E Flutter sensing and control system for a gas turbine engine
JP4882888B2 (ja) * 2007-06-27 2012-02-22 日本精工株式会社 転がり軸受固定装置
US11149650B2 (en) 2007-08-01 2021-10-19 Raytheon Technologies Corporation Turbine section of high bypass turbofan
US11486311B2 (en) 2007-08-01 2022-11-01 Raytheon Technologies Corporation Turbine section of high bypass turbofan
US20150377123A1 (en) 2007-08-01 2015-12-31 United Technologies Corporation Turbine section of high bypass turbofan
US11242805B2 (en) 2007-08-01 2022-02-08 Raytheon Technologies Corporation Turbine section of high bypass turbofan
US11346289B2 (en) 2007-08-01 2022-05-31 Raytheon Technologies Corporation Turbine section of high bypass turbofan
US9701415B2 (en) 2007-08-23 2017-07-11 United Technologies Corporation Gas turbine engine with axial movable fan variable area nozzle
US9957918B2 (en) 2007-08-28 2018-05-01 United Technologies Corporation Gas turbine engine front architecture
US20140157754A1 (en) 2007-09-21 2014-06-12 United Technologies Corporation Gas turbine engine compressor arrangement
US20140174056A1 (en) 2008-06-02 2014-06-26 United Technologies Corporation Gas turbine engine with low stage count low pressure turbine
US8182156B2 (en) * 2008-07-31 2012-05-22 General Electric Company Nested bearing cages
US9885313B2 (en) 2009-03-17 2018-02-06 United Technologes Corporation Gas turbine engine bifurcation located fan variable area nozzle
US8727699B2 (en) * 2009-12-29 2014-05-20 Rolls-Royce Corporation Rotating machinery with damping system
US8845277B2 (en) 2010-05-24 2014-09-30 United Technologies Corporation Geared turbofan engine with integral gear and bearing supports
US9995174B2 (en) 2010-10-12 2018-06-12 United Technologies Corporation Planetary gear system arrangement with auxiliary oil system
US10605167B2 (en) 2011-04-15 2020-03-31 United Technologies Corporation Gas turbine engine front center body architecture
US9631558B2 (en) 2012-01-03 2017-04-25 United Technologies Corporation Geared architecture for high speed and small volume fan drive turbine
US9523422B2 (en) 2011-06-08 2016-12-20 United Technologies Corporation Flexible support structure for a geared architecture gas turbine engine
US9239012B2 (en) 2011-06-08 2016-01-19 United Technologies Corporation Flexible support structure for a geared architecture gas turbine engine
US9506422B2 (en) 2011-07-05 2016-11-29 United Technologies Corporation Efficient, low pressure ratio propulsor for gas turbine engines
US9909505B2 (en) 2011-07-05 2018-03-06 United Technologies Corporation Efficient, low pressure ratio propulsor for gas turbine engines
US8727632B2 (en) 2011-11-01 2014-05-20 General Electric Company Bearing support apparatus for a gas turbine engine
US9416677B2 (en) 2012-01-10 2016-08-16 United Technologies Corporation Gas turbine engine forward bearing compartment architecture
US20130186058A1 (en) 2012-01-24 2013-07-25 William G. Sheridan Geared turbomachine fan and compressor rotation
US10400629B2 (en) 2012-01-31 2019-09-03 United Technologies Corporation Gas turbine engine shaft bearing configuration
US9394852B2 (en) 2012-01-31 2016-07-19 United Technologies Corporation Variable area fan nozzle with wall thickness distribution
EP2623800A1 (fr) 2012-01-31 2013-08-07 Technische Universität Darmstadt Palier lisse
US10415468B2 (en) 2012-01-31 2019-09-17 United Technologies Corporation Gas turbine engine buffer system
US10724431B2 (en) 2012-01-31 2020-07-28 Raytheon Technologies Corporation Buffer system that communicates buffer supply air to one or more portions of a gas turbine engine
US10287914B2 (en) 2012-01-31 2019-05-14 United Technologies Corporation Gas turbine engine with high speed low pressure turbine section and bearing support features
DE202012000906U1 (de) 2012-01-31 2013-02-01 Tu Darmstadt Erfindung betreffend Gleitlager
US20130192251A1 (en) 2012-01-31 2013-08-01 Peter M. Munsell Buffer system that communicates buffer supply air to one or more portions of a gas turbine engine
US20130192191A1 (en) 2012-01-31 2013-08-01 Frederick M. Schwarz Gas turbine engine with high speed low pressure turbine section and bearing support features
US8869508B2 (en) 2012-01-31 2014-10-28 United Technologies Corporation Gas turbine engine variable area fan nozzle control
US10113434B2 (en) 2012-01-31 2018-10-30 United Technologies Corporation Turbine blade damper seal
US20130192198A1 (en) 2012-01-31 2013-08-01 Lisa I. Brilliant Compressor flowpath
US8863491B2 (en) 2012-01-31 2014-10-21 United Technologies Corporation Gas turbine engine shaft bearing configuration
US9169781B2 (en) 2012-01-31 2015-10-27 United Technologies Corporation Turbine engine gearbox
US10107191B2 (en) 2012-02-29 2018-10-23 United Technologies Corporation Geared gas turbine engine with reduced fan noise
US10138809B2 (en) 2012-04-02 2018-11-27 United Technologies Corporation Geared turbofan engine with a high ratio of thrust to turbine volume
US10125693B2 (en) 2012-04-02 2018-11-13 United Technologies Corporation Geared turbofan engine with power density range
US10001028B2 (en) 2012-04-23 2018-06-19 General Electric Company Dual spring bearing support housing
US9074485B2 (en) 2012-04-25 2015-07-07 United Technologies Corporation Geared turbofan with three turbines all counter-rotating
US8572943B1 (en) 2012-05-31 2013-11-05 United Technologies Corporation Fundamental gear system architecture
US9863319B2 (en) 2012-09-28 2018-01-09 United Technologies Corporation Split-zone flow metering T-tube
WO2014058453A1 (fr) 2012-10-08 2014-04-17 United Technologies Corporation Moteur à turbine à engrenages comprenant un module propulseur relativement léger
EP2909460A4 (fr) 2012-10-09 2016-07-20 United Technologies Corp Moteur de réacteur à double flux à réducteur à exploitabilité améliorée comprenant des aubes directrices variables de section de compresseur
US9920653B2 (en) 2012-12-20 2018-03-20 United Technologies Corporation Low pressure ratio fan engine having a dimensional relationship between inlet and fan size
US9932933B2 (en) 2012-12-20 2018-04-03 United Technologies Corporation Low pressure ratio fan engine having a dimensional relationship between inlet and fan size
US10436120B2 (en) 2013-02-06 2019-10-08 United Technologies Corporation Exhaust nozzle for an elongated gear turbofan with high bypass ratio
EP3882448A1 (fr) 2013-03-12 2021-09-22 Raytheon Technologies Corporation Accouplement flexible pour turbine à engrenages
US11719161B2 (en) 2013-03-14 2023-08-08 Raytheon Technologies Corporation Low noise turbine for geared gas turbine engine
US10605172B2 (en) 2013-03-14 2020-03-31 United Technologies Corporation Low noise turbine for geared gas turbine engine
WO2014151785A1 (fr) 2013-03-15 2014-09-25 United Technologies Corporation Agencement paliers et boîtier de transmission de réacteur à double flux
US10724479B2 (en) 2013-03-15 2020-07-28 United Technologies Corporation Thrust efficient turbofan engine
EP2971589A4 (fr) * 2013-03-15 2016-06-08 United Technologies Corp Agencement de joint face-à-face de moteur de turbine comprenant des caractéristiques anti-rotation
US10287917B2 (en) 2013-05-09 2019-05-14 United Technologies Corporation Turbofan engine front section
EP3058202A4 (fr) 2013-10-16 2017-06-28 United Technologies Corporation Moteur à double flux à engrenages à efficacité modulaire ciblée
DE102013111532A1 (de) * 2013-10-18 2015-04-23 Rolls-Royce Deutschland Ltd & Co Kg Vorrichtung zur Lagerung einer Welle eines Strahltriebwerks
US10502163B2 (en) 2013-11-01 2019-12-10 United Technologies Corporation Geared turbofan arrangement with core split power ratio
WO2015112212A2 (fr) 2013-11-01 2015-07-30 United Technologies Corporation Agencement de réacteur à réducteur présentant un rapport de puissance divisé par noyau
US8869504B1 (en) 2013-11-22 2014-10-28 United Technologies Corporation Geared turbofan engine gearbox arrangement
EP3108119B1 (fr) 2014-02-19 2023-10-04 RTX Corporation Moteur à double flux à engrenage avec aubes mobiles de compresseur basse pression
US10465702B2 (en) 2014-02-19 2019-11-05 United Technologies Corporation Gas turbine engine airfoil
WO2015175052A2 (fr) 2014-02-19 2015-11-19 United Technologies Corporation Profil aérodynamique de turbine à gaz
EP3108120B1 (fr) 2014-02-19 2021-03-31 Raytheon Technologies Corporation Moteur à turbine à gaz ayant une architecture à engrenages et une structure à aube fixe spécifique
US10495106B2 (en) 2014-02-19 2019-12-03 United Technologies Corporation Gas turbine engine airfoil
US10570916B2 (en) 2014-02-19 2020-02-25 United Technologies Corporation Gas turbine engine airfoil
WO2015126715A1 (fr) 2014-02-19 2015-08-27 United Technologies Corporation Profil aérodynamique de turbine à gaz
US10570915B2 (en) 2014-02-19 2020-02-25 United Technologies Corporation Gas turbine engine airfoil
US10280843B2 (en) 2014-03-07 2019-05-07 United Technologies Corporation Geared turbofan with integral front support and carrier
US9976490B2 (en) 2014-07-01 2018-05-22 United Technologies Corporation Geared gas turbine engine with oil deaerator
US10060289B2 (en) 2014-07-29 2018-08-28 United Technologies Corporation Geared gas turbine engine with oil deaerator and air removal
US9915225B2 (en) 2015-02-06 2018-03-13 United Technologies Corporation Propulsion system arrangement for turbofan gas turbine engine
US9470093B2 (en) 2015-03-18 2016-10-18 United Technologies Corporation Turbofan arrangement with blade channel variations
US10371168B2 (en) 2015-04-07 2019-08-06 United Technologies Corporation Modal noise reduction for gas turbine engine
US10458270B2 (en) 2015-06-23 2019-10-29 United Technologies Corporation Roller bearings for high ratio geared turbofan engine
US9909451B2 (en) 2015-07-09 2018-03-06 General Electric Company Bearing assembly for supporting a rotor shaft of a gas turbine engine
US10508562B2 (en) 2015-12-01 2019-12-17 United Technologies Corporation Geared turbofan with four star/planetary gear reduction
US10669948B2 (en) 2017-01-03 2020-06-02 Raytheon Technologies Corporation Geared turbofan with non-epicyclic gear reduction system
US10662811B2 (en) * 2017-05-11 2020-05-26 Raytheon Technologies Corporation Fluid damping structure ring and method of fluid damping
EP3412877B1 (fr) * 2017-06-05 2020-08-19 General Electric Company Pare-chocs de palier pour des événements de sortie de pale
US10738646B2 (en) 2017-06-12 2020-08-11 Raytheon Technologies Corporation Geared turbine engine with gear driving low pressure compressor and fan at common speed, and failsafe overspeed protection and shear section
FR3071546B1 (fr) * 2017-09-25 2019-09-13 Safran Aircraft Engines Retention axiale de l'arbre de soufflante dans un moteur a turbine a gaz
US10724445B2 (en) 2018-01-03 2020-07-28 Raytheon Technologies Corporation Method of assembly for fan drive gear system with rotating carrier
CN111005937B (zh) * 2018-10-04 2021-11-19 三菱重工业株式会社 挤压油膜阻尼器以及旋转机械
US11092020B2 (en) 2018-10-18 2021-08-17 Raytheon Technologies Corporation Rotor assembly for gas turbine engines
US10808755B2 (en) * 2019-03-04 2020-10-20 Pratt & Whitney Canada Corp. Method to seal damper cavity of multi-film oil damper
US11067121B2 (en) * 2019-03-18 2021-07-20 Pratt & Whitney Canada Corp. Multi-film oil damper with tapered damper rings
US11125110B2 (en) 2019-03-18 2021-09-21 Pratt & Whitney Canada Corp. Method and system to supply oil to a multi-film oil damper
US10947863B2 (en) * 2019-07-26 2021-03-16 Pratt & Whitney Canada Corp. Method to supply oil to a multi-film damper
US10883383B1 (en) * 2019-07-26 2021-01-05 Pratt & Whitney Canada Corp. Multi-film damper rings with spacers
US10954817B2 (en) * 2019-07-26 2021-03-23 Pratt & Whitney Canada Corp. Method of separating and sealing multi film damper rings
US11781506B2 (en) 2020-06-03 2023-10-10 Rtx Corporation Splitter and guide vane arrangement for gas turbine engines
US11441605B1 (en) 2021-03-01 2022-09-13 Pratt & Whitney Canada Corp. Dual-film damper
US11719245B2 (en) 2021-07-19 2023-08-08 Raytheon Technologies Corporation Compressor arrangement for a gas turbine engine
US11754000B2 (en) 2021-07-19 2023-09-12 Rtx Corporation High and low spool configuration for a gas turbine engine
US11814968B2 (en) 2021-07-19 2023-11-14 Rtx Corporation Gas turbine engine with idle thrust ratio

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2659637A (en) * 1950-06-14 1953-11-17 Roller Bearing Co Of America Roller bearing for compensating shaft misalignment
CH365913A (de) * 1958-01-23 1962-11-30 Hoffmann August Lagervorrichtung mit gegen Zerstörung gesichertem Lager für schnellaufende Wellen, insbesondere für Sicherheitsprüfstände
GB988500A (en) * 1964-02-21 1965-04-07 Rolls Royce Bearing
GB1071049A (en) * 1966-02-15 1967-06-07 Rolls Royce Ltd Inc Bearing assembly
GB1130296A (en) * 1966-03-25 1968-10-16 Rolls Royce Vibration damping device
GB1318629A (en) * 1970-11-21 1973-05-31 Secr Defence Gas turbine engine
CH556981A (de) * 1971-12-30 1974-12-13 Siemens Ag Waelzlageranordnung an einem mit hoher drehzahl umlaufenden teil.
GB1418907A (en) * 1972-06-23 1975-12-24 Rolls Royce Bearing assemblies
US4046430A (en) * 1976-03-12 1977-09-06 United Technologies Corporation Damped intershaft bearing and stabilizer
GB1587285A (en) * 1977-06-14 1981-04-01 Rolls Royce Bearing assembly

Also Published As

Publication number Publication date
GB2058245B (en) 1983-11-16
IT1132285B (it) 1986-07-02
JPS6346289B2 (fr) 1988-09-14
IT8023874A0 (it) 1980-08-01
US4289360A (en) 1981-09-15
FR2463853A1 (fr) 1981-02-27
DE3031562A1 (de) 1981-03-26
JPS5642721A (en) 1981-04-21
GB2058245A (en) 1981-04-08

Similar Documents

Publication Publication Date Title
FR2463853B1 (fr) Dispositif de support d'un element tournant pouvant etre soumis a des balourds importants
FR2445892B1 (fr) Dispositif de retenue d'aubes de turbo-machine
FR2347740A1 (fr) Dispositif d'affichage
RO81369A (fr) Dispositif de retention deblocable
FR2353920A1 (fr) Dispositif d'affichage opto-electronique
GB2035155B (en) Crankshaft supporting device
IT1130180B (it) Dispositivo di pesatura
FR2348679A1 (fr) Dispositif pour soutenir des bottes
PT68160A (fr) Dispositif de reserve des emplosements individuels pour parcage
JPS5551113A (en) Fixing device for element being to support on completed structure
PT71386A (fr) Dispositif pour solidariser au moins deux elements lineaires
BE861865A (fr) Dispositif de support de base pour porte-charges
IT1122183B (it) Dispositivo di appesantimento per un trattore
IT8050147A0 (it) Dispositivo di montaggio di un cuscinetto in un supporto
IT1133828B (it) Dispositivo posa-alimenti per un'affettatrice
JPS5547411A (en) Device for indicating verticality
BE886205A (fr) Dispositif compensateur
BE854214A (fr) Dispositif d'etalage
BE876351A (fr) Dispositif tendeur
BE875819A (fr) Dispositif indicateur
FR2351328A1 (fr) Dispositif d'engrenage a cremaillere
BR7900370A (pt) Dispositivo de pesagem
LU75620A1 (fr) Dispositif de support de pieces d'ameublement
FR2469375B1 (fr) Dispositif de chargement a double pendeur
MA18692A1 (fr) Dispositif d'ebarbage de graines cristees

Legal Events

Date Code Title Description
DL Decision of the director general to leave to make available licences of right
ST Notification of lapse