BR112013031374B1 - pá, em particular uma pá de passo variável, hélice, em particular para uma turbomáquina de ventilador não carenado, e, turbomáquina - Google Patents

pá, em particular uma pá de passo variável, hélice, em particular para uma turbomáquina de ventilador não carenado, e, turbomáquina Download PDF

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Publication number
BR112013031374B1
BR112013031374B1 BR112013031374-9A BR112013031374A BR112013031374B1 BR 112013031374 B1 BR112013031374 B1 BR 112013031374B1 BR 112013031374 A BR112013031374 A BR 112013031374A BR 112013031374 B1 BR112013031374 B1 BR 112013031374B1
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BR
Brazil
Prior art keywords
blade
propeller
hub
upstream
downstream
Prior art date
Application number
BR112013031374-9A
Other languages
English (en)
Portuguese (pt)
Other versions
BR112013031374A2 (pt
Inventor
Sébastien PASCAL
Original Assignee
Snecma
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 Snecma filed Critical Snecma
Publication of BR112013031374A2 publication Critical patent/BR112013031374A2/pt
Publication of BR112013031374B1 publication Critical patent/BR112013031374B1/pt

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Classifications

    • 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
    • B64C11/16—Blades
    • B64C11/20—Constructional features
    • 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
    • B64C11/306—Blade pitch-changing mechanisms specially adapted for contrarotating propellers
    • 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
    • B64C11/02—Hub construction
    • B64C11/04—Blade mountings
    • B64C11/06—Blade mountings for variable-pitch blades
    • 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
    • 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
    • F05D2220/00—Application
    • F05D2220/30—Application in turbines
    • F05D2220/32—Application in turbines in gas turbines
    • F05D2220/324—Application in turbines in gas turbines to drive unshrouded, low solidity propeller
    • 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
    • F05D2220/32—Application in turbines in gas turbines
    • F05D2220/325—Application in turbines in gas turbines to drive unshrouded, high solidity propeller
    • 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)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
BR112013031374-9A 2011-06-20 2012-06-19 pá, em particular uma pá de passo variável, hélice, em particular para uma turbomáquina de ventilador não carenado, e, turbomáquina BR112013031374B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR1155413 2011-06-20
FR1155413A FR2976551B1 (fr) 2011-06-20 2011-06-20 Pale, en particulier a calage variable, helice comprenant de telles pales, et turbomachine correspondante
PCT/FR2012/051382 WO2012175863A2 (fr) 2011-06-20 2012-06-19 Pale, en particulier a calage variable, helice comprenant de telles pales, et turbomachine correspondante

Publications (2)

Publication Number Publication Date
BR112013031374A2 BR112013031374A2 (pt) 2018-02-27
BR112013031374B1 true BR112013031374B1 (pt) 2021-05-25

Family

ID=46579167

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112013031374-9A BR112013031374B1 (pt) 2011-06-20 2012-06-19 pá, em particular uma pá de passo variável, hélice, em particular para uma turbomáquina de ventilador não carenado, e, turbomáquina

Country Status (9)

Country Link
US (1) US9481449B2 (https=)
EP (1) EP2720941B1 (https=)
JP (1) JP6088497B2 (https=)
CN (1) CN103608260B (https=)
BR (1) BR112013031374B1 (https=)
CA (1) CA2837829C (https=)
FR (1) FR2976551B1 (https=)
RU (1) RU2590766C2 (https=)
WO (1) WO2012175863A2 (https=)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US20160290228A1 (en) * 2015-04-06 2016-10-06 General Electric Company Fan bearings for a turbine engine
US10100653B2 (en) 2015-10-08 2018-10-16 General Electric Company Variable pitch fan blade retention system
EP3736207B1 (en) * 2015-12-18 2026-04-15 Amazon Technologies, Inc. Propeller blade treatments for sound control
FR3047972B1 (fr) * 2016-02-24 2018-03-02 Safran Aircraft Engines Pale a calage variable equipee a sa base d'elements mobiles retractables
FR3048953B1 (fr) * 2016-03-21 2018-04-06 Arianegroup Sas Helice d'aeronef comprenant des pales pliables et a calage variable
MX2018013580A (es) * 2016-05-18 2019-07-08 Zachary Kyriacos Aparato de helice de paso variable y aeronave de fuerza propulsora variable que usa el mismo.
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
WO2018045575A1 (zh) * 2016-09-09 2018-03-15 深圳市大疆创新科技有限公司 一种螺旋桨组件、动力系统及飞行器
CN107010197B (zh) * 2016-11-22 2023-09-12 中国人民解放军空军工程大学 一种静止螺旋桨特定方向生成和固定机构
FR3100563B1 (fr) * 2019-09-06 2021-08-06 Safran Aircraft Engines Moyeu polysphérique de turbomachine pour pales à calage variable
KR102502552B1 (ko) * 2020-12-07 2023-02-21 이병준 터빈장치
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
US12601271B2 (en) 2022-10-21 2026-04-14 General Electric Company Variable pitch fan of a gas turbine engine
US12352185B1 (en) * 2024-07-19 2025-07-08 Rtx Corporation Open rotor variable pitch blade with retracting inboard trailing edge

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4419053A (en) * 1981-11-20 1983-12-06 Fairchild Swearingen Corporation Propeller spinner
DE3149629C1 (de) * 1981-12-15 1983-04-21 Messerschmitt-Bölkow-Blohm GmbH, 8000 München Einrichtung zum Abdichten eines Luftspaltes an einer Flugzeugklappe
DE3738785A1 (de) * 1986-11-19 1988-05-26 Gen Electric Gegenlaeufig rotierende flugzeug-antriebsschaufeln
US5039278A (en) * 1989-04-11 1991-08-13 General Electric Company Power turbine ventilation system
RU2099243C1 (ru) * 1996-10-17 1997-12-20 Йелстаун Корпорейшн Н.В. Соосный воздушный винт и способ его управления
FR2911644B1 (fr) * 2007-01-23 2012-06-01 Snecma Turbopropulseur comportant une helice formee de pales a orientation reglable.
GB0702608D0 (en) * 2007-02-10 2007-03-21 Rolls Royce Plc Aeroengine
FR2935349B1 (fr) * 2008-08-29 2010-10-01 Snecma Turbomachine a helices non carenees
FR2938502B1 (fr) * 2008-11-14 2010-12-10 Snecma Turbomachine comportant une helice non carenee equipee de moyens de guidage d'air
GB0914591D0 (en) 2009-08-21 2009-09-30 Rolls Royce Plc Fluidfoil tip vortex disruption
GB201114380D0 (en) * 2011-08-22 2011-10-05 Rolls Royce Plc An aircraft propulsion system and a method of controlling the same

Also Published As

Publication number Publication date
CA2837829C (fr) 2019-06-11
BR112013031374A2 (pt) 2018-02-27
FR2976551B1 (fr) 2013-06-28
US9481449B2 (en) 2016-11-01
WO2012175863A2 (fr) 2012-12-27
CA2837829A1 (fr) 2012-12-27
US20140112784A1 (en) 2014-04-24
RU2590766C2 (ru) 2016-07-10
JP2014520035A (ja) 2014-08-21
EP2720941A2 (fr) 2014-04-23
WO2012175863A3 (fr) 2013-01-24
JP6088497B2 (ja) 2017-03-01
CN103608260B (zh) 2015-10-07
CN103608260A (zh) 2014-02-26
EP2720941B1 (fr) 2015-08-05
FR2976551A1 (fr) 2012-12-21
RU2013154765A (ru) 2015-07-27

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Legal Events

Date Code Title Description
B06F Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]
B06U Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 19/06/2012, OBSERVADAS AS CONDICOES LEGAIS.