IT1022867B - Ventilatore a passo variabile per turbomotore a gas - Google Patents

Ventilatore a passo variabile per turbomotore a gas

Info

Publication number
IT1022867B
IT1022867B IT28416/74A IT2841674A IT1022867B IT 1022867 B IT1022867 B IT 1022867B IT 28416/74 A IT28416/74 A IT 28416/74A IT 2841674 A IT2841674 A IT 2841674A IT 1022867 B IT1022867 B IT 1022867B
Authority
IT
Italy
Prior art keywords
turbomotor
gas
variable pitch
pitch fan
fan
Prior art date
Application number
IT28416/74A
Other languages
English (en)
Original Assignee
Gen Electric
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 Gen Electric filed Critical Gen Electric
Application granted granted Critical
Publication of IT1022867B publication Critical patent/IT1022867B/it

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
    • F01D7/00—Rotors with blades adjustable in operation; Control thereof
    • 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
    • F05D2220/00—Application
    • F05D2220/30—Application in turbines
    • F05D2220/36—Application in turbines specially adapted for the fan of turbofan engines
    • 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
    • F05D2260/70—Adjusting of angle of incidence or attack of rotating blades
    • F05D2260/74—Adjusting of angle of incidence or attack of rotating blades by turning around an axis perpendicular the rotor centre line
    • 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
    • F05D2260/70—Adjusting of angle of incidence or attack of rotating blades
    • F05D2260/76—Adjusting of angle of incidence or attack of rotating blades the adjusting mechanism using auxiliary power sources
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00—Aeronautics or air transport
    • Y02T50/60—Efficient propulsion technologies, e.g. for aircraft

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
IT28416/74A 1973-10-17 1974-10-15 Ventilatore a passo variabile per turbomotore a gas IT1022867B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US407222A US3922852A (en) 1973-10-17 1973-10-17 Variable pitch fan for gas turbine engine

Publications (1)

Publication Number Publication Date
IT1022867B true IT1022867B (it) 1978-04-20

Family

ID=23611149

Family Applications (1)

Application Number Title Priority Date Filing Date
IT28416/74A IT1022867B (it) 1973-10-17 1974-10-15 Ventilatore a passo variabile per turbomotore a gas

Country Status (7)

Country Link
US (1) US3922852A (it)
JP (1) JPS5077719A (it)
BE (1) BE821172A (it)
CA (1) CA1005993A (it)
DE (1) DE2448901A1 (it)
FR (1) FR2248415B3 (it)
IT (1) IT1022867B (it)

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* Cited by examiner, † Cited by third party
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FR2309744A1 (fr) * 1975-04-30 1976-11-26 Ratier Sa Forest Dispositif de commande de variation du pas des pales d'un ventilateur
US4047842A (en) * 1976-04-19 1977-09-13 Curtiss-Wright Corporation Variable pitch mechanism for fan blades
US4657484A (en) * 1984-09-04 1987-04-14 General Electric Company Blade pitch varying means
US4718823A (en) * 1987-02-24 1988-01-12 United Technologies Corporation Pitch changing mechanism for fan blades
US5156648A (en) * 1990-07-09 1992-10-20 General Electric Company Prop-fan pitch-change mechanism
US5152668A (en) * 1990-07-23 1992-10-06 General Electric Company Pitch change mechanism for prop fans
US5154372A (en) * 1990-07-23 1992-10-13 General Electric Company Torque multiplier for aircraft propeller
US5242265A (en) * 1990-07-23 1993-09-07 General Electric Company Aircraft pitch change mechanism
US5174716A (en) * 1990-07-23 1992-12-29 General Electric Company Pitch change mechanism
US5154580A (en) * 1990-07-23 1992-10-13 General Electric Company Propeller pitch change mechanism
US5205712A (en) * 1991-05-13 1993-04-27 Allied-Signal Inc. Variable pitch fan gas turbine engine
US5282719A (en) * 1991-05-13 1994-02-01 Alliedsignal Inc. Quad mode fan pitch actuation system for a gas turbine engine
US5199850A (en) * 1991-07-31 1993-04-06 United Technologies Corporation Pitch stop assembly for variable pitch propulsor
KR100306208B1 (ko) * 1998-09-16 2001-12-20 조한원 회전체의날개각조절장치
US6195983B1 (en) * 1999-02-12 2001-03-06 General Electric Company Leaned and swept fan outlet guide vanes
ITBA20010002A1 (it) * 2001-01-11 2002-07-11 Paolo Pietricola Fan a passo variabile.
US7021042B2 (en) * 2002-12-13 2006-04-04 United Technologies Corporation Geartrain coupling for a turbofan engine
US7055306B2 (en) 2003-04-30 2006-06-06 Hamilton Sundstrand Corporation Combined stage single shaft turbofan engine
US7493754B2 (en) * 2005-10-19 2009-02-24 General Electric Company Gas turbine engine assembly and methods of assembling same
US7490460B2 (en) * 2005-10-19 2009-02-17 General Electric Company Gas turbine engine assembly and methods of assembling same
US8256225B2 (en) * 2006-10-12 2012-09-04 United Technologies Corporation Gas turbine engine with a variable exit area fan nozzle, nacelle assembly of such a engine, and corresponding operating method
FR2922860B1 (fr) * 2007-10-26 2010-01-22 Eurocopter France Amelioration aux giravions equipes de turbomoteurs
US8083482B2 (en) * 2008-09-30 2011-12-27 Ge Aviation Systems, Llc Method and system for limiting blade pitch
GB0906392D0 (en) * 2009-04-15 2009-05-20 Goodrich Actuation Systems Ltd Thrust reverser actuator system
FR2946012B1 (fr) * 2009-05-29 2011-06-24 Snecma Dispositif pour la commande de l'orientation des pales de soufflante d'un turbopropulseur
US8360714B2 (en) * 2011-04-15 2013-01-29 United Technologies Corporation Gas turbine engine front center body architecture
FR2980770B1 (fr) * 2011-10-03 2014-06-27 Snecma Turbomachine a helice(s) pour aeronef avec systeme pour changer le pas de l'helice.
EP2584153B1 (en) * 2011-10-17 2019-01-09 United Technologies Corporation Gas turbine engine and method of disassembly
WO2013130373A1 (en) * 2012-02-29 2013-09-06 United Technologies Corporation Gas turbine engine front center body architecture
US11073087B2 (en) 2013-02-27 2021-07-27 Raytheon Technologies Corporation Gas turbine engine variable pitch fan blade
FR3008676B1 (fr) * 2013-07-19 2018-04-20 Safran Aircraft Engines Pivot de pale d'helice aerienne
US9869190B2 (en) 2014-05-30 2018-01-16 General Electric Company Variable-pitch rotor with remote counterweights
US10072510B2 (en) 2014-11-21 2018-09-11 General Electric Company Variable pitch fan for gas turbine engine and method of assembling the same
US9835037B2 (en) 2015-06-22 2017-12-05 General Electric Company Ducted thrust producing system with asynchronous fan blade pitching
US10443412B2 (en) * 2015-08-28 2019-10-15 General Electric Company Variable pitch fan pitch range limiter
GB201515929D0 (en) 2015-09-09 2015-10-21 Rolls Royce Plc Amechanism
US10100653B2 (en) 2015-10-08 2018-10-16 General Electric Company Variable pitch fan blade retention system
US11225975B2 (en) 2015-11-17 2022-01-18 General Electric Company Gas turbine engine fan
US10436151B2 (en) * 2015-11-17 2019-10-08 General Electric Company Modular fan for a gas turbine engine
US10371096B2 (en) * 2015-11-17 2019-08-06 General Electric Company Gas turbine engine fan
FR3046433B1 (fr) * 2016-01-05 2019-05-24 Safran Aircraft Engines Module de soufflante a aubes a calage variable pour une turbomachine
US10393137B2 (en) 2016-02-12 2019-08-27 General Electric Company Method and system for integrated pitch control mechanism actuator hydraulic fluid transfer
US10577078B2 (en) * 2017-04-24 2020-03-03 General Electric Company Systems and methods for electronic measurement of propeller blade angle
US10934866B2 (en) 2017-06-20 2021-03-02 Rolls-Royce North American Technologies Inc. Variable pitch change control method
US10670037B2 (en) * 2017-11-21 2020-06-02 General Electric Company Turbofan engine's fan blade and setting method thereof
US10823003B2 (en) * 2018-05-25 2020-11-03 General Electric Company System and method for mitigating undesired vibrations at a turbo machine
US11493407B2 (en) 2018-09-28 2022-11-08 Ge Avio S.R.L. Torque measurement system
FR3087857B1 (fr) * 2018-10-30 2021-02-12 Safran Aircraft Engines Module de soufflante a pales a calage variable
FR3100563B1 (fr) * 2019-09-06 2021-08-06 Safran Aircraft Engines Moyeu polysphérique de turbomachine pour pales à calage variable
US11674435B2 (en) 2021-06-29 2023-06-13 General Electric Company Levered counterweight feathering system
US11795964B2 (en) 2021-07-16 2023-10-24 General Electric Company Levered counterweight feathering system
US12326114B2 (en) * 2023-08-15 2025-06-10 Rtx Corporation Gas turbine engine with core debris protection
EP4524032A1 (en) * 2023-09-13 2025-03-19 General Electric Company Turbine engine having a variable pitch airfoil assembly
US12345178B1 (en) * 2023-12-29 2025-07-01 General Electric Company Turbofan engine including a fan actuation system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1942100A (en) * 1930-10-31 1934-01-02 Bendix Res Corp Propeller
US2440046A (en) * 1936-11-26 1948-04-20 Hautier Camille Reversible propeller with variable pitch
US3528752A (en) * 1966-04-12 1970-09-15 Dowty Rotol Ltd Gas turbine engines
US3396905A (en) * 1966-09-28 1968-08-13 Gen Motors Corp Ducted fan
FR1555814A (it) * 1967-12-12 1969-01-31

Also Published As

Publication number Publication date
FR2248415B3 (it) 1977-07-22
CA1005993A (en) 1977-03-01
US3922852A (en) 1975-12-02
BE821172A (fr) 1975-02-17
FR2248415A1 (it) 1975-05-16
JPS5077719A (it) 1975-06-25
DE2448901A1 (de) 1975-04-30

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