IT1231280B - Soppressore di rumore a cavita' chiuse - Google Patents

Soppressore di rumore a cavita' chiuse

Info

Publication number
IT1231280B
IT1231280B IT8921201A IT2120189A IT1231280B IT 1231280 B IT1231280 B IT 1231280B IT 8921201 A IT8921201 A IT 8921201A IT 2120189 A IT2120189 A IT 2120189A IT 1231280 B IT1231280 B IT 1231280B
Authority
IT
Italy
Prior art keywords
closed cavity
noise suppressor
cavity noise
suppressor
closed
Prior art date
Application number
IT8921201A
Other languages
English (en)
Other versions
IT8921201A0 (it
Inventor
Russel Emerson Motsinger
John William Vdoviak
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 IT8921201A0 publication Critical patent/IT8921201A0/it
Application granted granted Critical
Publication of IT1231280B publication Critical patent/IT1231280B/it

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
    • F02K1/78—Other construction of jet pipes
    • F02K1/82—Jet pipe walls, e.g. liners
    • F02K1/827—Sound absorbing structures or liners
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
    • F23R2900/00—Special features of, or arrangements for continuous combustion chambers; Combustion processes therefor
    • F23R2900/00014—Reducing thermo-acoustic vibrations by passive means, e.g. by Helmholtz resonators
    • 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)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Exhaust Silencers (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
IT8921201A 1988-11-25 1989-07-17 Soppressore di rumore a cavita' chiuse IT1231280B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/275,993 US4944362A (en) 1988-11-25 1988-11-25 Closed cavity noise suppressor

Publications (2)

Publication Number Publication Date
IT8921201A0 IT8921201A0 (it) 1989-07-17
IT1231280B true IT1231280B (it) 1991-11-28

Family

ID=23054691

Family Applications (1)

Application Number Title Priority Date Filing Date
IT8921201A IT1231280B (it) 1988-11-25 1989-07-17 Soppressore di rumore a cavita' chiuse

Country Status (8)

Country Link
US (1) US4944362A (it)
JP (1) JPH02161134A (it)
CH (1) CH680523A5 (it)
DE (1) DE3923434A1 (it)
FR (1) FR2639678B1 (it)
GB (1) GB2225381B (it)
IT (1) IT1231280B (it)
SE (1) SE468061B (it)

Families Citing this family (64)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2756520B2 (ja) * 1991-11-15 1998-05-25 富士写真フイルム株式会社 ハロゲン化銀写真感光材料
FR2685386B1 (fr) * 1991-12-20 1994-03-25 Propulsion Ste Europeenne Systeme d'amortissement des instabilites de combustion haute frequence dans une chambre de combustion.
US5287697A (en) * 1992-01-02 1994-02-22 General Electric Company Variable area bypass injector seal
EP0576717A1 (de) * 1992-07-03 1994-01-05 Abb Research Ltd. Gasturbinen-Brennkammer
DE59208715D1 (de) * 1992-11-09 1997-08-21 Asea Brown Boveri Gasturbinen-Brennkammer
DE4305333C1 (de) * 1993-02-20 1994-07-07 Fasag Ag Suhr Geräuschdämpfungsvorrichtung zur Reduktion von Mündungsgeräuschen bei Anlagen mit pulsierenden Gasströmungen
US5777947A (en) * 1995-03-27 1998-07-07 Georgia Tech Research Corporation Apparatuses and methods for sound absorption using hollow beads loosely contained in an enclosure
US5685157A (en) * 1995-05-26 1997-11-11 General Electric Company Acoustic damper for a gas turbine engine combustor
US6098926A (en) * 1998-08-06 2000-08-08 Lockheed Martin Corporation Composite fairing with integral damping and internal helmholz resonators
US6182787B1 (en) 1999-01-12 2001-02-06 General Electric Company Rigid sandwich panel acoustic treatment
EP1172059A1 (en) * 2000-07-14 2002-01-16 Nilfisk Advance A/S A suction apparatus with noise reduction means
US6530221B1 (en) * 2000-09-21 2003-03-11 Siemens Westinghouse Power Corporation Modular resonators for suppressing combustion instabilities in gas turbine power plants
US6550574B2 (en) 2000-12-21 2003-04-22 Dresser-Rand Company Acoustic liner and a fluid pressurizing device and method utilizing same
US6983820B2 (en) 2001-09-07 2006-01-10 Avon Polymer Products Limited Noise and vibration suppressors
WO2004051063A1 (ja) * 2002-12-02 2004-06-17 Mitsubishi Heavy Industries, Ltd. ガスタービン燃焼器、及びこれを備えたガスタービン
US6918740B2 (en) * 2003-01-28 2005-07-19 Dresser-Rand Company Gas compression apparatus and method with noise attenuation
US7080514B2 (en) * 2003-08-15 2006-07-25 Siemens Power Generation,Inc. High frequency dynamics resonator assembly
US7584820B2 (en) * 2004-03-19 2009-09-08 Bose Corporation Acoustic radiating
US7033137B2 (en) 2004-03-19 2006-04-25 Ametek, Inc. Vortex blower having helmholtz resonators and a baffle assembly
US7565948B2 (en) * 2004-03-19 2009-07-28 Bose Corporation Acoustic waveguiding
US7337875B2 (en) * 2004-06-28 2008-03-04 United Technologies Corporation High admittance acoustic liner
US7631481B2 (en) * 2004-12-01 2009-12-15 United Technologies Corporation Cooled duct for gas turbine engine
US20060137352A1 (en) * 2004-12-29 2006-06-29 United Technologies Corporation Augmentor liner
US7311175B2 (en) * 2005-08-10 2007-12-25 United Technologies Corporation Acoustic liner with bypass cooling
US7401682B2 (en) * 2005-08-10 2008-07-22 United Technologies Corporation Architecture for an acoustic liner
US7461719B2 (en) * 2005-11-10 2008-12-09 Siemens Energy, Inc. Resonator performance by local reduction of component thickness
US7966823B2 (en) * 2006-01-06 2011-06-28 General Electric Company Exhaust dust flow splitter system
US7740104B1 (en) * 2006-01-11 2010-06-22 Red Tail Hawk Corporation Multiple resonator attenuating earplug
JP4773904B2 (ja) * 2006-07-11 2011-09-14 三菱重工業株式会社 ガスタービン燃焼器
GB2443830B (en) * 2006-11-15 2010-01-20 Rolls Royce Plc Cowling arrangement
GB2449477B (en) * 2007-05-24 2009-05-13 Rolls Royce Plc A duct installation
US20100206664A1 (en) * 2007-07-12 2010-08-19 Rolls-Royce Plc Acoustic panel
GB0713526D0 (en) * 2007-07-12 2007-08-22 Rolls Royce Plc An acoustic panel
US9404441B2 (en) * 2008-08-18 2016-08-02 Aerojet Rocketdyne Of De, Inc. Low velocity injector manifold for hypergolic rocket engine
US8123886B2 (en) * 2008-09-17 2012-02-28 General Electric Company Method of manufacture of composite laminates, an assembly therefor, and related articles
US7798285B2 (en) * 2008-11-14 2010-09-21 Rohr, Inc. Acoustic barrel for aircraft engine nacelle including crack and delamination stoppers
EP2402658B1 (en) * 2009-02-27 2017-12-06 Mitsubishi Hitachi Power Systems, Ltd. Combustor and gas turbine with same
FR2946090B1 (fr) * 2009-05-27 2016-01-22 Turbomeca Turbomoteur comportant un cone de guidage des gaz d'echappement avec un attenuateur sonore.
DE102009037956B4 (de) 2009-08-18 2024-06-06 MTU Aero Engines AG Turbinenaustrittsgehäuse
CN102597477B (zh) * 2009-09-17 2015-12-16 沃尔沃航空公司 降噪面板和包括降噪面板的燃气涡轮机部件
EP2385303A1 (en) 2010-05-03 2011-11-09 Alstom Technology Ltd Combustion Device for a Gas Turbine
US8973365B2 (en) 2010-10-29 2015-03-10 Solar Turbines Incorporated Gas turbine combustor with mounting for Helmholtz resonators
EP2690365B1 (en) * 2011-03-22 2015-12-30 Mitsubishi Heavy Industries, Ltd. Acoustic damper, combustor, and gas turbine
US9016042B2 (en) 2011-05-20 2015-04-28 Rohr, Inc. Reinforcement members for aircraft propulsion system components configured to address delamination of the inner fixed structure
JP5804808B2 (ja) 2011-07-07 2015-11-04 三菱日立パワーシステムズ株式会社 ガスタービン燃焼器及びその燃焼振動減衰方法
EP2568144B1 (en) * 2011-09-12 2019-11-06 Ansaldo Energia IP UK Limited Wall structure with noise damping insulation properties and gas turbine with such a wall structure
FR2983835B1 (fr) * 2011-12-13 2014-02-21 Airbus Operations Sas Procede de realisation d'un panneau pour le traitement acoustique
EP2818670B1 (en) 2012-02-24 2017-09-20 Mitsubishi Heavy Industries, Ltd. Acoustic damper, combustor and gas turbine
US9400108B2 (en) 2013-05-14 2016-07-26 Siemens Aktiengesellschaft Acoustic damping system for a combustor of a gas turbine engine
US9410484B2 (en) 2013-07-19 2016-08-09 Siemens Aktiengesellschaft Cooling chamber for upstream weld of damping resonator on turbine component
US9546660B2 (en) 2014-06-02 2017-01-17 Ingersoll-Rand Company Compressor system with resonator
EP2977601B1 (en) * 2014-07-21 2024-07-10 RTX Corporation Noise attenuating acoustic panel
EP3048370A1 (en) * 2015-01-23 2016-07-27 Siemens Aktiengesellschaft Combustion chamber for a gas turbine engine
US10332501B2 (en) * 2017-02-01 2019-06-25 General Electric Company Continuous degree of freedom acoustic cores
DE102018116166B4 (de) 2018-07-04 2023-06-07 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Mantelpropeller und Luftfahrzeug
DE102019101358A1 (de) * 2019-01-21 2020-07-23 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Luftfahrzeug
DE102019101833A1 (de) * 2019-01-25 2020-07-30 Faurecia Emissions Control Technologies, Germany Gmbh Abgasanlagenkomponente sowie Verfahren zum Herstellen einer Abgasanlagenkomponente
RU2710179C1 (ru) * 2019-07-15 2019-12-24 федеральное государственное бюджетное образовательное учреждение высшего образования "Пермский национальный исследовательский политехнический университет" Способ изготовления составной звукопоглощающей конструкции
JP7289752B2 (ja) * 2019-08-01 2023-06-12 三菱重工業株式会社 音響減衰器、筒アッセンブリ、燃焼器、ガスタービン及び筒アッセンブリの製造方法
US11519333B2 (en) 2020-09-10 2022-12-06 General Electric Company Turbine engine with shockwave attenuation
US11867077B2 (en) 2021-06-07 2024-01-09 Rohr, Inc. Acoustic structure with floating interior skin
US12078125B2 (en) 2021-09-13 2024-09-03 Rohr, Inc. Low-frequency acoustic center body
US11976597B2 (en) 2021-09-13 2024-05-07 Rohr, Inc. Low-frequency acoustic center body
US20240077029A1 (en) * 2022-09-02 2024-03-07 Rohr, Inc. Engine exhaust nozzle with acoustic attenuation

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR963612A (it) * 1948-03-03 1950-07-17
US3110358A (en) * 1961-07-10 1963-11-12 Arvin Ind Inc Sound attenuating gas conduit
GB1015955A (en) * 1963-05-09 1966-01-05 Arvin Ind Inc Improvements in or relating to a sound attenuating gas pipe
GB990347A (en) * 1963-05-16 1965-04-28 Arvin Ind Inc Improvements in or relating to a sound attenuating gas pipe
US3437173A (en) * 1966-11-25 1969-04-08 Gen Electric Gas turbine engine with screech attenuating means
US3542152A (en) * 1968-04-08 1970-11-24 Gen Electric Sound suppression panel
US3819007A (en) * 1973-04-27 1974-06-25 Lockheed Aircraft Corp Controllable laminar sound absorptive structure
US4106587A (en) * 1976-07-02 1978-08-15 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Sound-suppressing structure with thermal relief
US4189027A (en) * 1976-08-19 1980-02-19 United Technologies Corporation Sound suppressor liners
FR2376994A1 (fr) * 1977-01-11 1978-08-04 Snecma Perfectionnements aux dispositifs a cavites resonnantes pour la reduction du bruit dans un conduit en presence d'un flux gazeux
US4231447A (en) * 1978-04-29 1980-11-04 Rolls-Royce Limited Multi-layer acoustic linings
GB2024380A (en) * 1978-04-29 1980-01-09 Rolls Royce Acoustic linings for fluid flow ducts
EP0193408A1 (en) * 1985-03-01 1986-09-03 James Howden Australia Pty. Limited Reactive duct silencers
US4645032A (en) * 1985-09-05 1987-02-24 The Garrett Corporation Compact muffler apparatus and associated methods
US4747467A (en) * 1986-04-01 1988-05-31 Allied-Signal Inc. Turbine engine noise suppression apparatus and methods
US4821841A (en) * 1987-06-16 1989-04-18 Bruce Woodward Sound absorbing structures

Also Published As

Publication number Publication date
FR2639678B1 (fr) 1994-09-23
SE468061B (sv) 1992-10-26
GB8916880D0 (en) 1989-09-06
IT8921201A0 (it) 1989-07-17
JPH02161134A (ja) 1990-06-21
CH680523A5 (it) 1992-09-15
DE3923434A1 (de) 1990-05-31
GB2225381B (en) 1993-09-01
SE8902593L (sv) 1990-05-26
GB2225381A (en) 1990-05-30
FR2639678A1 (fr) 1990-06-01
US4944362A (en) 1990-07-31
SE8902593D0 (sv) 1989-07-21

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19950726