BR112012028535A2 - dispositivo para redução de ruido emitido pelo jato de um motor de propulsão de aeronave - Google Patents

dispositivo para redução de ruido emitido pelo jato de um motor de propulsão de aeronave

Info

Publication number
BR112012028535A2
BR112012028535A2 BR112012028535A BR112012028535A BR112012028535A2 BR 112012028535 A2 BR112012028535 A2 BR 112012028535A2 BR 112012028535 A BR112012028535 A BR 112012028535A BR 112012028535 A BR112012028535 A BR 112012028535A BR 112012028535 A2 BR112012028535 A2 BR 112012028535A2
Authority
BR
Brazil
Prior art keywords
gaskets
downstream
jet
upstream
nozzle
Prior art date
Application number
BR112012028535A
Other languages
English (en)
Other versions
BR112012028535B1 (pt
Inventor
Alexandre Alfred Gaston Vuillemin
Guillaume Bodard
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 BR112012028535A2 publication Critical patent/BR112012028535A2/pt
Publication of BR112012028535B1 publication Critical patent/BR112012028535B1/pt

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02K—JET-PROPULSION PLANTS
    • F02K1/00—Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto
    • F02K1/28—Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto using fluid jets to influence the jet flow
    • F02K1/34—Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto using fluid jets to influence the jet flow for attenuating noise
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02K—JET-PROPULSION PLANTS
    • F02K1/00—Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto
    • F02K1/46—Nozzles having means for adding air to the jet or for augmenting the mixing region between the jet and the ambient air, e.g. for silencing
    • 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
    • F05D2240/40—Use of a multiplicity of similar components
    • 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
    • F05D2250/00—Geometry
    • F05D2250/10—Two-dimensional
    • F05D2250/11—Two-dimensional triangular
    • 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
    • F05D2250/00—Geometry
    • F05D2250/10—Two-dimensional
    • F05D2250/13—Two-dimensional trapezoidal
    • 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
    • F05D2260/96—Preventing, counteracting or reducing vibration or noise

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Exhaust Silencers (AREA)
  • Nozzles (AREA)

Abstract

dispositivo para redução de ruído emitido pelo jato de um motor de propulsão de aeronave. a presente invenção se refere a um bocal de ejeção de gás, em particular, para propulsão de aeronave e que inclui pelo menos uma porção á jusante que tem uma borda posterior chamada " em gaxeta" formada por gaxetas (40) que são distribuidas ao longo da periferia do bocal, sendo que cada gaxeta se estende á jusante entre plano transversal a montante (43) e um plano transversal á jusante com bordas livres orientadas em duas direções á jusante convergentes que definem a dita borda posterior. as gaxetas garantem a criação de enrolamentos em vórtice na borda do jato emitido pelo bocal. o bocal é caracterizado por incluir um meio (50) para injetar jatos de gás auxiliares (a 1). os ditos jatos auxiliares são injetados à jusante das ditas bordas livres (41, 42) das gaxetas, levando a montante a partir do dito plano a montante (43) das gaxetas, a fim de iniciar os ditos enrolamentos em vótices a montante das bordas livres das gaxetas.
BR112012028535-1A 2010-05-12 2011-05-11 Bocal de exaustão de gás e turbojato multifluxo BR112012028535B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR1053756 2010-05-12
FR1053756A FR2960028B1 (fr) 2010-05-12 2010-05-12 Dispositif pour attenuer le bruit emis par le jet d'un moteur de propulsion d'un aeronef.
PCT/FR2011/051060 WO2011141678A1 (fr) 2010-05-12 2011-05-11 Dispositif pour attenuer le bruit emis par le jet d'un moteur de propulsion d'un aeronef

Publications (2)

Publication Number Publication Date
BR112012028535A2 true BR112012028535A2 (pt) 2016-07-26
BR112012028535B1 BR112012028535B1 (pt) 2020-12-15

Family

ID=43233350

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112012028535-1A BR112012028535B1 (pt) 2010-05-12 2011-05-11 Bocal de exaustão de gás e turbojato multifluxo

Country Status (8)

Country Link
US (1) US9422887B2 (pt)
EP (1) EP2569527B1 (pt)
JP (1) JP6005629B2 (pt)
CN (1) CN102893009B (pt)
BR (1) BR112012028535B1 (pt)
CA (1) CA2798679C (pt)
FR (1) FR2960028B1 (pt)
WO (1) WO2011141678A1 (pt)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2964924B1 (en) * 2013-03-04 2019-05-15 United Technologies Corporation Gas turbine engine inlet
WO2019014386A1 (en) * 2017-07-12 2019-01-17 Jetoptera, Inc. AUGMENTATION FAIRING IN CARDAN
US11060480B2 (en) * 2017-11-14 2021-07-13 The Boeing Company Sound-attenuating heat exchangers and methods of utilizing the same
US11143170B2 (en) 2019-06-28 2021-10-12 The Boeing Company Shape memory alloy lifting tubes and shape memory alloy actuators including the same
US11168584B2 (en) 2019-06-28 2021-11-09 The Boeing Company Thermal management system using shape memory alloy actuator
US11525438B2 (en) 2019-06-28 2022-12-13 The Boeing Company Shape memory alloy actuators and thermal management systems including the same

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1195859A (fr) 1957-05-13 1959-11-19 Perfectionnements apportés aux procédés et dispositifs pour la suppression, tout au moins partielle, du bruit causé par un jet de fluide débité dans l'atmosphère,notamment par celui débité par des avions à réaction
FR1542668A (fr) 1967-08-24 1968-10-18 Snecma Perfectionnements aux silencieux pour tuyères ventilées
US6308898B1 (en) * 1999-06-11 2001-10-30 The Boeing Company Apparatus and methods for active flow control of a nozzle exhaust plume
US6612106B2 (en) * 2000-05-05 2003-09-02 The Boeing Company Segmented mixing device having chevrons for exhaust noise reduction in jet engines
JP3962978B2 (ja) * 2001-10-18 2007-08-22 石川島播磨重工業株式会社 ジェット噴流用ローブミキサ
GB0226228D0 (en) * 2002-11-09 2002-12-18 Rolls Royce Plc Suppression of part of the noise from a gas turbine engine
US7055329B2 (en) * 2003-03-31 2006-06-06 General Electric Company Method and apparatus for noise attenuation for gas turbine engines using at least one synthetic jet actuator for injecting air
US7305817B2 (en) * 2004-02-09 2007-12-11 General Electric Company Sinuous chevron exhaust nozzle
FR2868131B1 (fr) * 2004-03-25 2006-06-09 Airbus France Sas Tuyere primaire a chevrons pour turboreacteur a double flux d'aeronef et aeronef comportant une telle tuyere
US7246481B2 (en) * 2004-03-26 2007-07-24 General Electric Company Methods and apparatus for operating gas turbine engines
US7340883B2 (en) * 2004-11-12 2008-03-11 The Boeing Company Morphing structure
US7543452B2 (en) * 2005-08-10 2009-06-09 United Technologies Corporation Serrated nozzle trailing edge for exhaust noise suppression
FR2890696B1 (fr) * 2005-09-12 2010-09-17 Airbus France Turbomoteur a bruit de jet attenue
FR2892152B1 (fr) * 2005-10-19 2007-11-23 Airbus France Sas Turbomoteur a bruit de jet attenue
US8015819B2 (en) * 2006-09-29 2011-09-13 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Wet active chevron nozzle for controllable jet noise reduction
US7966826B2 (en) 2007-02-14 2011-06-28 The Boeing Company Systems and methods for reducing noise from jet engine exhaust
US7926285B2 (en) * 2007-07-18 2011-04-19 General Electric Company Modular chevron exhaust nozzle
FR2920036B1 (fr) * 2007-08-14 2013-11-15 Airbus France Chevrons anti-bruit pour tuyere
FR2929334B1 (fr) * 2008-03-31 2012-06-01 Airbus France Dispositif de reduction du bruit genere par reacteur d'aeronef a conduits de fluide coudes
FR2929337B1 (fr) * 2008-03-31 2012-06-01 Airbus France Dispositif a jets secondaires de reduction du bruit genere par un reacteur d'aeronef
FR2929336B1 (fr) * 2008-03-31 2012-06-01 Airbus France Dispositif a jets plans de reduction du bruit genere par un reacteur d'aeronef

Also Published As

Publication number Publication date
EP2569527B1 (fr) 2014-04-30
CN102893009A (zh) 2013-01-23
BR112012028535B1 (pt) 2020-12-15
EP2569527A1 (fr) 2013-03-20
WO2011141678A1 (fr) 2011-11-17
FR2960028B1 (fr) 2016-07-15
JP6005629B2 (ja) 2016-10-12
JP2013526668A (ja) 2013-06-24
FR2960028A1 (fr) 2011-11-18
CA2798679A1 (fr) 2011-11-17
US9422887B2 (en) 2016-08-23
CA2798679C (fr) 2018-03-27
US20130055718A1 (en) 2013-03-07
RU2012152095A (ru) 2014-06-20
CN102893009B (zh) 2015-07-01

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Legal Events

Date Code Title Description
B06F Objections, documents and/or translations needed after an examination request according art. 34 industrial property law
B06U Preliminary requirement: requests with searches performed by other patent offices: suspension of the patent application procedure
B09A Decision: intention to grant
B16A Patent or certificate of addition of invention granted

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 11/05/2011, OBSERVADAS AS CONDICOES LEGAIS.