BE825517A - Canal a insonorisation asymetrique - Google Patents

Canal a insonorisation asymetrique

Info

Publication number
BE825517A
BE825517A BE153342A BE153342A BE825517A BE 825517 A BE825517 A BE 825517A BE 153342 A BE153342 A BE 153342A BE 153342 A BE153342 A BE 153342A BE 825517 A BE825517 A BE 825517A
Authority
BE
Belgium
Prior art keywords
asymetric
soundproofing
channel
soundproofing channel
asymetric soundproofing
Prior art date
Application number
BE153342A
Other languages
English (en)
French (fr)
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 filed Critical
Publication of BE825517A publication Critical patent/BE825517A/xx

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/663—Sound attenuation
    • F04D29/664—Sound attenuation by means of sound absorbing material
    • 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
    • F02K1/78—Other construction of jet pipes
    • F02K1/82—Jet pipe walls, e.g. liners
    • F02K1/827—Sound absorbing structures or liners
    • 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
    • B64D33/00—Arrangement in aircraft of power plant parts or auxiliaries not otherwise provided for
    • B64D33/02—Arrangement in aircraft of power plant parts or auxiliaries not otherwise provided for of combustion air intakes
    • B64D2033/0206—Arrangement in aircraft of power plant parts or auxiliaries not otherwise provided for of combustion air intakes comprising noise reduction means, e.g. acoustic liners
    • 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
    • B64D33/00—Arrangement in aircraft of power plant parts or auxiliaries not otherwise provided for
    • B64D33/02—Arrangement in aircraft of power plant parts or auxiliaries not otherwise provided for of combustion air intakes
    • B64D2033/0266—Arrangement in aircraft of power plant parts or auxiliaries not otherwise provided for of combustion air intakes specially adapted for particular type of power plants
    • B64D2033/0286—Arrangement in aircraft of power plant parts or auxiliaries not otherwise provided for of combustion air intakes specially adapted for particular type of power plants for turbofan engines
    • 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)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Exhaust Silencers (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
BE153342A 1974-02-15 1975-02-14 Canal a insonorisation asymetrique BE825517A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US442893A US3890060A (en) 1974-02-15 1974-02-15 Acoustic duct with asymmetric acoustical treatment

Publications (1)

Publication Number Publication Date
BE825517A true BE825517A (fr) 1975-05-29

Family

ID=23758566

Family Applications (1)

Application Number Title Priority Date Filing Date
BE153342A BE825517A (fr) 1974-02-15 1975-02-14 Canal a insonorisation asymetrique

Country Status (7)

Country Link
US (1) US3890060A (show.php)
JP (1) JPS6010168B2 (show.php)
BE (1) BE825517A (show.php)
DE (1) DE2504073C2 (show.php)
FR (1) FR2261583B1 (show.php)
GB (1) GB1499724A (show.php)
IT (1) IT1031366B (show.php)

Families Citing this family (44)

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GB1483590A (en) * 1973-12-27 1977-08-24 Chrysler Uk Fan assemblies
US4104002A (en) * 1976-12-02 1978-08-01 General Electric Company Spiral strip acoustic treatment
US4989886A (en) * 1988-12-30 1991-02-05 Textron Inc. Braided filamentary sealing element
US5029875A (en) * 1989-07-07 1991-07-09 Textron Inc. Fluid seal structure
JP2630652B2 (ja) * 1989-08-09 1997-07-16 三菱電機ホーム機器株式会社 送風機
US5594218A (en) * 1995-01-04 1997-01-14 Northrop Grumman Corporation Anechoic chamber absorber and method
US5709529A (en) * 1995-11-14 1998-01-20 Westinghouse Electric Corporation Optimization of turbomachinery harmonics
US5702231A (en) * 1996-08-09 1997-12-30 The Boeing Company Apparatus and method for reducing noise emissions from a gas turbine engine inlet
FR2787513B1 (fr) 1998-12-17 2001-01-19 Turbomeca Dispositif d'echappement multicanal de turbomachine traite acoustiquement
SE515528C2 (sv) * 1999-12-07 2001-08-20 Saab Ab Anordning vid en akustisk absorbent
FR2820716B1 (fr) 2001-02-15 2003-05-30 Eads Airbus Sa Procede de degivrage par circulation forcee d'un fluide, d'un capot d'entree d'air de moteur a reaction et dispositif pour sa mise en oeuvre
FR2820715B1 (fr) 2001-02-15 2003-05-30 Eads Airbus Sa Procede de degivrage d'un capot d'entree d'air de moteur a reaction et dispositif pour sa mise en oeuvre
US6557799B1 (en) 2001-11-09 2003-05-06 The Boeing Company Acoustic treated thrust reverser bullnose fairing assembly
GB2385378B (en) * 2002-02-14 2005-08-31 Rolls Royce Plc Engine casing
RU2268384C1 (ru) * 2004-06-23 2006-01-20 Федеральное государственное унитарное предприятие "Центральный институт авиационного моторостроения им. П.И. Баранова" Глушитель шума
FR2898870B1 (fr) * 2006-03-24 2008-05-23 Aircelle Sa Structure de virole d'entree d'air
GB0608236D0 (en) * 2006-04-26 2006-06-07 Rolls Royce Plc Aeroengine noise reduction
FR2905734B1 (fr) * 2006-09-07 2012-07-13 Airbus France Dispositif permettant d'ameliorer l'efficacite des traitements acoustiques dans un conduit d'une motorisation d'aeronef
US8780550B2 (en) * 2006-09-26 2014-07-15 Hewlett-Packard Development Company, L.P. Dampening acoustic vibrations within an electronic system
US20080110695A1 (en) * 2006-11-15 2008-05-15 Mc Clellan W Thomas High efficiency, frequency-tunable, acoustic wool and method of attenuating acoustic vibrations
DE102007019762A1 (de) * 2007-04-25 2008-10-30 Eads Deutschland Gmbh Schallschutzvorrichtung für ein Strahltriebwerk oder eine Turbine
JP2009062977A (ja) * 2007-08-15 2009-03-26 Rohr Inc 線形音響ライナー
FR2926704B1 (fr) * 2008-01-25 2013-02-01 Velecta Paramount Silencieux pour appareil de sechage et seche-cheveux silencieux
DE102011006275A1 (de) 2011-03-28 2012-10-04 Rolls-Royce Deutschland Ltd & Co Kg Stator einer Axialverdichterstufe einer Turbomaschine
DE102011006273A1 (de) 2011-03-28 2012-10-04 Rolls-Royce Deutschland Ltd & Co Kg Rotor einer Axialverdichterstufe einer Turbomaschine
DE102011007767A1 (de) * 2011-04-20 2012-10-25 Rolls-Royce Deutschland Ltd & Co Kg Strömungsmaschine
US8943792B2 (en) * 2011-06-29 2015-02-03 United Technologies Corporation Gas-driven propulsor with tip turbine fan
DE102011056826B4 (de) 2011-12-21 2014-06-26 Eads Deutschland Gmbh Schallschutzvorrichtung und damit versehenes Triebwerk und Verfahren zur Bereitstellung
US9476385B2 (en) * 2012-11-12 2016-10-25 The Boeing Company Rotational annular airscrew with integrated acoustic arrester
US9957840B2 (en) 2013-02-26 2018-05-01 United Technologies Corporation Acoustic treatment to mitigate fan noise
WO2014197035A2 (en) 2013-03-15 2014-12-11 United Technologies Corporation Acoustic liner with varied properties
WO2015023325A1 (en) * 2013-08-12 2015-02-19 United Technologies Corporation Non-axisymmetric fan flow path
US9850850B2 (en) * 2013-10-23 2017-12-26 Rohr, Inc. Acoustically treated thrust reverser track beam
DE102014006112A1 (de) * 2014-04-29 2015-10-29 Autogyro Ag Luftfahrzeug
WO2016190753A1 (en) 2015-05-25 2016-12-01 Dotterel Technologies Limited A shroud for an aircraft
US9587563B2 (en) 2015-07-21 2017-03-07 The Boeing Company Sound attenuation apparatus and method
US9771868B2 (en) * 2015-07-21 2017-09-26 The Boeing Company Sound attenuation apparatus and method
US10823060B2 (en) * 2015-12-18 2020-11-03 Raytheon Technologies Corporation Gas turbine engine with short inlet, acoustic treatment and anti-icing features
US10161357B2 (en) 2016-06-17 2018-12-25 Rohr, Inc. Acoustically treated thrust reverser track beam
CN110997486A (zh) 2017-07-24 2020-04-10 多特瑞尔技术有限公司 护罩
FR3078107B1 (fr) * 2018-02-19 2020-07-31 Safran Aircraft Engines Nacelle de turbomachine a parois acoustiquement poreuses
US11721352B2 (en) 2018-05-16 2023-08-08 Dotterel Technologies Limited Systems and methods for audio capture
DE102018116062A1 (de) * 2018-07-03 2020-01-09 Rolls-Royce Deutschland Ltd & Co Kg Strukturbaugruppe für einen Verdichter einer Strömungsmaschine
US12385430B2 (en) * 2023-11-30 2025-08-12 General Electric Company Gas turbine engine with forward swept outlet guide vanes

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2909235A (en) * 1955-11-03 1959-10-20 Gen Dynamics Corp Muffler
US3263771A (en) * 1964-05-21 1966-08-02 Seifert Kurt Sound absorbing pipe lining having packing with different densities
US3542152A (en) * 1968-04-08 1970-11-24 Gen Electric Sound suppression panel
FR1580553A (show.php) * 1968-07-26 1969-09-05
US3508838A (en) * 1968-09-16 1970-04-28 Gen Electric Sound suppression of compressors used in gas turbine engines
US3655008A (en) * 1971-01-28 1972-04-11 Rohr Corp Sound suppressing apparatus

Also Published As

Publication number Publication date
JPS50118114A (show.php) 1975-09-16
DE2504073C2 (de) 1983-12-01
US3890060A (en) 1975-06-17
GB1499724A (en) 1978-02-01
JPS6010168B2 (ja) 1985-03-15
FR2261583B1 (show.php) 1981-02-13
IT1031366B (it) 1979-04-30
FR2261583A1 (show.php) 1975-09-12
DE2504073A1 (de) 1975-08-21

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: GENERAL ELECTRIC CY

Effective date: 19850214