IT8721847A0 - Meccanismo variatore di passo di pale. - Google Patents

Meccanismo variatore di passo di pale.

Info

Publication number
IT8721847A0
IT8721847A0 IT8721847A IT2184787A IT8721847A0 IT 8721847 A0 IT8721847 A0 IT 8721847A0 IT 8721847 A IT8721847 A IT 8721847A IT 2184787 A IT2184787 A IT 2184787A IT 8721847 A0 IT8721847 A0 IT 8721847A0
Authority
IT
Italy
Prior art keywords
blade pitch
pitch variation
variation mechanism
blade
variation
Prior art date
Application number
IT8721847A
Other languages
English (en)
Other versions
IT1222623B (it
Inventor
Lawrence Butler
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
Publication of IT8721847A0 publication Critical patent/IT8721847A0/it
Application granted granted Critical
Publication of IT1222623B publication Critical patent/IT1222623B/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
    • B64C11/30—Blade pitch-changing mechanisms
    • B64C11/32—Blade pitch-changing mechanisms mechanical
    • 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
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
    • F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D27/00—Arrangement or mounting of power plants in aircraft; Aircraft characterised by the type or position of power plants
    • B64D2027/005—Aircraft with an unducted turbofan comprising contra-rotating rotors, e.g. contra-rotating open rotors [CROR]
    • 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
    • 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
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
    • F16H2001/2881—Toothed gearings for conveying rotary motion with gears having orbital motion comprising two axially spaced central gears, i.e. ring or sun gear, engaged by at least one common orbital gear wherein one of the central gears is forming the output
    • 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)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Retarders (AREA)
  • Transmission Devices (AREA)
  • Control Of Turbines (AREA)
  • Wind Motors (AREA)
  • Control Of Positive-Displacement Air Blowers (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
IT21847/87A 1986-09-09 1987-09-09 Meccanismo variatore di passo di pale IT1222623B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/905,213 US4738590A (en) 1986-09-09 1986-09-09 Blade pitch varying mechanism

Publications (2)

Publication Number Publication Date
IT8721847A0 true IT8721847A0 (it) 1987-09-09
IT1222623B IT1222623B (it) 1990-09-05

Family

ID=25420437

Family Applications (1)

Application Number Title Priority Date Filing Date
IT21847/87A IT1222623B (it) 1986-09-09 1987-09-09 Meccanismo variatore di passo di pale

Country Status (7)

Country Link
US (1) US4738590A (it)
JP (1) JPS63129132A (it)
DE (1) DE3729809A1 (it)
FR (1) FR2603658B1 (it)
GB (1) GB2194991B (it)
IT (1) IT1222623B (it)
SE (1) SE461994B (it)

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3905282C1 (en) * 1987-10-13 1990-05-31 Karl Dipl.-Ing. 2742 Gnarrenburg De Kastens Propeller fan
GB8812981D0 (en) * 1988-06-01 1988-07-06 Dowty Rotol Ltd Propeller blade hub assembly
US4927329A (en) * 1988-10-21 1990-05-22 General Electric Company Aircraft engine unducted fan blade pitch control system
US5263898A (en) * 1988-12-14 1993-11-23 General Electric Company Propeller blade retention system
US4951461A (en) * 1989-03-20 1990-08-28 General Electric Company Power turbine support arrangement
US5112191A (en) * 1989-04-11 1992-05-12 General Electric Company Rotating cowling
US4934901A (en) * 1989-04-21 1990-06-19 Duchesneau Jerome G Pitch change actuation system
US5082424A (en) * 1989-06-05 1992-01-21 General Electric Company Connection system for aircraft propeller blades
US5131813A (en) * 1990-04-03 1992-07-21 General Electric Company Turbine blade outer end attachment structure
US5102295A (en) * 1990-04-03 1992-04-07 General Electric Company Thrust force-compensating apparatus with improved hydraulic pressure-responsive balance mechanism
US5156648A (en) * 1990-07-09 1992-10-20 General Electric Company Prop-fan pitch-change mechanism
US5174716A (en) * 1990-07-23 1992-12-29 General Electric Company Pitch change mechanism
US5152668A (en) * 1990-07-23 1992-10-06 General Electric Company Pitch change mechanism for prop fans
US5154580A (en) * 1990-07-23 1992-10-13 General Electric Company Propeller pitch change mechanism
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
US5415602A (en) * 1993-03-11 1995-05-16 Benesch; Lloyd Transmission device
GB2315825B (en) * 1996-07-26 2000-02-09 Massey Ferguson Group Ltd Transmission with creep gear
FR2761412B1 (fr) * 1997-03-27 1999-04-30 Snecma Groupe turbopropulseur double corps a regulation isodrome
FR2931796B1 (fr) * 2008-05-29 2010-07-30 Snecma Systeme simplifie de commande de calage d'une pale d'helice d'un turbomoteur pour aeronef
FR2944774B1 (fr) * 2009-04-22 2011-05-06 Snecma Helice non carenee a pales a calage variable pour une turbomachine
FR2951435B1 (fr) * 2009-10-15 2012-02-03 Snecma Dispositif adapte pour etre pourvu de pales d'helice
WO2011057395A1 (en) 2009-11-13 2011-05-19 Proslide Technology Inc. Water slide
US8360722B2 (en) * 2010-05-28 2013-01-29 General Electric Company Method and system for validating wind turbine
US8336290B2 (en) 2010-09-30 2012-12-25 General Electric Company Pitch change apparatus for counter-rotating propellers
US8371105B2 (en) 2010-09-30 2013-02-12 General Electric Company Hydraulic system for fan pitch change actuation of counter-rotating propellers
FR3017667B1 (fr) * 2014-02-14 2019-05-03 Safran Aircraft Engines Dispositif pour une helice non carenee a pales a calage variable d'une turbomachine
US10077674B2 (en) * 2015-06-23 2018-09-18 General Electric Company Trunnion retention for a turbine engine
FR3051824B1 (fr) * 2016-05-31 2018-06-01 Safran Aircraft Engines Moteur d'aeronef comportant des pales a calage variable et un moyeu comportant une paroi flexible
US10385868B2 (en) * 2016-07-05 2019-08-20 General Electric Company Strut assembly for an aircraft engine
USD855136S1 (en) 2017-06-08 2019-07-30 Whitewater West Industries Ltd. Looping ride element
US11427304B2 (en) * 2018-10-15 2022-08-30 Pratt & Whitney Canada Corp. System and method for slowing down aircraft
EP3620650A1 (en) * 2019-03-11 2020-03-11 Ventus Engineering GmbH Relative rotor blade misalignment

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR579067A (fr) * 1923-11-21 1924-10-09 Mécanisme de commande
FR785867A (fr) * 1934-05-01 1935-08-21 Hélice à pas variable
FR928354A (fr) * 1946-05-21 1947-11-26 Jacottet Paul Ets Dispositif de commande à distance
US2906143A (en) * 1955-03-21 1959-09-29 United Shoe Machinery Corp Strain wave gearing
GB1196588A (en) * 1966-11-09 1970-07-01 British Aircraft Corp Ltd Form Improvements relating to Turbo-fan Aircraft Engines
DE1601640A1 (de) * 1966-12-05 1970-04-09 Rolls Royce Verstellbare Geblaeseschaufeln
US3467198A (en) * 1966-12-05 1969-09-16 Rolls Royce Gear transmission
US3801219A (en) * 1971-05-05 1974-04-02 Jerome A Gross Controllable pitch maripropeller
GB1375988A (en) * 1971-12-11 1974-12-04 Rolls Royce Pitch varying mechanism for variable pitch fan
GB1445107A (en) * 1973-01-12 1976-08-04 Rolls Royce Pitch varying mechanisms for a variable pitch fan
US3893789A (en) * 1973-02-21 1975-07-08 United Aircraft Corp Pitch change actuator for a variable pitch fan propulsor
US3964839A (en) * 1974-10-21 1976-06-22 United Technologies Corporation Pitch change mechanism
PT65597B (de) * 1975-10-11 1978-03-28 Balcke Duerr Ag Planetengetriebe
GB2117054B (en) * 1982-02-17 1985-01-30 Rolls Royce Aircraft propulsion engine having a rear mounted propfan
DE3233078C1 (de) * 1982-09-06 1984-03-29 Balcke-Dürr AG, 4030 Ratingen Stroemungsmaschine
NL8303401A (nl) * 1982-11-01 1984-06-01 Gen Electric Aandrijfturbine voor tegengesteld draaiende propellers.
US4657484A (en) * 1984-09-04 1987-04-14 General Electric Company Blade pitch varying means
US4621978A (en) * 1984-12-03 1986-11-11 General Electric Company Counterrotating power turbine

Also Published As

Publication number Publication date
JPS63129132A (ja) 1988-06-01
FR2603658B1 (fr) 1990-08-03
GB2194991B (en) 1991-04-17
SE461994B (sv) 1990-04-23
US4738590A (en) 1988-04-19
IT1222623B (it) 1990-09-05
SE8703497D0 (sv) 1987-09-09
DE3729809A1 (de) 1988-03-17
FR2603658A1 (fr) 1988-03-11
GB8713928D0 (en) 1987-07-22
JPH0520572B2 (it) 1993-03-19
SE8703497L (sv) 1988-03-10
GB2194991A (en) 1988-03-23

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