CA986735A - Duct wall acoustic treatment - Google Patents

Duct wall acoustic treatment

Info

Publication number
CA986735A
CA986735A CA189,000A CA189000A CA986735A CA 986735 A CA986735 A CA 986735A CA 189000 A CA189000 A CA 189000A CA 986735 A CA986735 A CA 986735A
Authority
CA
Canada
Prior art keywords
duct wall
acoustic treatment
wall acoustic
treatment
duct
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
CA189,000A
Other versions
CA189000S (en
Inventor
Russell E. Motsinger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Application granted granted Critical
Publication of CA986735A publication Critical patent/CA986735A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F02C7/04—Air intakes for gas-turbine plants or jet-propulsion plants
    • F02C7/045—Air intakes for gas-turbine plants or jet-propulsion plants having provisions for noise suppression
    • 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
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24149—Honeycomb-like
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24744—Longitudinal or transverse tubular cavity or cell

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)
  • Building Environments (AREA)
  • Pipe Accessories (AREA)
  • Duct Arrangements (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
CA189,000A 1973-02-01 1973-12-27 Duct wall acoustic treatment Expired CA986735A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00328713A US3819009A (en) 1973-02-01 1973-02-01 Duct wall acoustic treatment

Publications (1)

Publication Number Publication Date
CA986735A true CA986735A (en) 1976-04-06

Family

ID=23282098

Family Applications (1)

Application Number Title Priority Date Filing Date
CA189,000A Expired CA986735A (en) 1973-02-01 1973-12-27 Duct wall acoustic treatment

Country Status (8)

Country Link
US (1) US3819009A (en)
JP (1) JPS5723280B2 (en)
BE (1) BE810492A (en)
CA (1) CA986735A (en)
DE (1) DE2404001C2 (en)
FR (1) FR2216445B1 (en)
GB (1) GB1462271A (en)
IT (1) IT1007136B (en)

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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
US4135603A (en) * 1976-08-19 1979-01-23 United Technologies Corporation Sound suppressor liners
US4189027A (en) * 1976-08-19 1980-02-19 United Technologies Corporation Sound suppressor liners
US4137992A (en) * 1976-12-30 1979-02-06 The Boeing Company Turbojet engine nozzle for attenuating core and turbine noise
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US4294329A (en) * 1979-12-17 1981-10-13 Rohr Industries, Inc. Double layer attenuation panel with two layers of linear type material
US4318453A (en) * 1979-09-17 1982-03-09 Rohr Industries, Inc. Double layer attenuation panel
US4291080A (en) * 1980-03-31 1981-09-22 Vought Corporation Sound attenuating structural panel
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GB2090334B (en) * 1980-12-29 1983-11-16 Rolls Royce Damping flutter of ducted fans
US4421455A (en) * 1981-12-22 1983-12-20 The Garrett Corporation Duct lining
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US5014431A (en) * 1989-07-24 1991-05-14 Arnim B. Jebe Tool for handling disposable food containing bags
GB2236804A (en) * 1989-07-26 1991-04-17 Anthony Reginald Robins Compound nozzle
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US5127602B1 (en) * 1989-11-21 1995-05-02 Federal Express Corp Noise reduction kit for jet turbine engines.
KR920007624B1 (en) * 1990-10-22 1992-09-09 대우캐리어 주식회사 Muffler for hermetic rotary compressor
US5758488A (en) * 1993-05-11 1998-06-02 Roderick Thomson Core flow expansion chamber device system for reduction of jet turbine engine noise
US5644918A (en) * 1994-11-14 1997-07-08 General Electric Company Dynamics free low emissions gas turbine combustor
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
US5592813A (en) * 1995-07-06 1997-01-14 Avaero Hush kit for jet engine
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GB0206136D0 (en) * 2002-03-15 2002-04-24 Rolls Royce Plc Improvements in or relating to cellular materials
DE102004012929B3 (en) * 2004-03-17 2005-04-21 Dornier Gmbh Noise reduction system for gas turbine engine for aircraft has surface cladding for hot gas channel downstream of turbine, with circular perforated plates covering large ends of frustoconical spaces
US7033137B2 (en) 2004-03-19 2006-04-25 Ametek, Inc. Vortex blower having helmholtz resonators and a baffle assembly
US7337875B2 (en) * 2004-06-28 2008-03-04 United Technologies Corporation High admittance acoustic 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
DE202006012949U1 (en) * 2006-08-23 2007-12-27 Mann + Hummel Gmbh Silencer for an internal combustion engine
US20090025393A1 (en) * 2006-10-31 2009-01-29 Karl Edward Sheldon Auxiliary power unit assembly
GB0907578D0 (en) * 2009-05-05 2009-06-10 Rolls Royce Plc A damping assembly
US8413443B2 (en) * 2009-12-15 2013-04-09 Siemens Energy, Inc. Flow control through a resonator system of gas turbine combustor
JP5804808B2 (en) * 2011-07-07 2015-11-04 三菱日立パワーシステムズ株式会社 Gas turbine combustor and its combustion vibration damping method
US8469141B2 (en) * 2011-08-10 2013-06-25 General Electric Company Acoustic damping device for use in gas turbine engine
WO2014133770A1 (en) * 2013-03-01 2014-09-04 United Technologies Corporation Gas turbine engine noise reducing nose cone
WO2016057186A1 (en) 2014-10-08 2016-04-14 Dresser-Rand Company Concentric resonators for machines
FR3028886B1 (en) * 2014-11-24 2019-09-13 Safran Aircraft Engines TURBOREACTOR BLOWER NOISE REDUCTION BODY
DE102015214709A1 (en) * 2015-07-31 2017-02-02 Mahle International Gmbh Flow channel and ventilation, heating or air conditioning
US9472179B1 (en) * 2015-09-05 2016-10-18 Xiaobing Cai Sound absorber
US10174675B2 (en) * 2015-12-30 2019-01-08 General Electric Company Acoustic liner for gas turbine engine components
US20180281559A1 (en) * 2017-03-29 2018-10-04 Ford Global Technologies, Llc Acoustic air duct and air extraction system with nesting expansion chambers
US10532631B2 (en) 2017-03-29 2020-01-14 Ford Global Technologies, Llc Acoustic air duct and air extraction system including a plurality of channels having an expansion chamber
US10720136B2 (en) * 2017-12-04 2020-07-21 Zin Technologies, Inc. Layered chamber acoustic attenuation
SE544189C2 (en) * 2018-02-13 2022-02-22 Faurecia Creo Ab Acoustic damper for a gas duct system
US11059559B2 (en) 2018-03-05 2021-07-13 General Electric Company Acoustic liners with oblique cellular structures
WO2019195189A1 (en) * 2018-04-02 2019-10-10 Itt Manufacturing Enterprises Llc Multi-frequency helmholtz resonator system
US11047304B2 (en) 2018-08-08 2021-06-29 General Electric Company Acoustic cores with sound-attenuating protuberances
US10823059B2 (en) 2018-10-03 2020-11-03 General Electric Company Acoustic core assemblies with mechanically joined acoustic core segments, and methods of mechanically joining acoustic core segments
JP7172457B2 (en) * 2018-11-05 2022-11-16 ヤマハ株式会社 Sound-absorbing units and sound-absorbing structures
JP7310120B2 (en) 2018-11-05 2023-07-19 ヤマハ株式会社 sound absorbing structure
US11434819B2 (en) 2019-03-29 2022-09-06 General Electric Company Acoustic liners with enhanced acoustic absorption and reduced drag characteristics
US11008112B2 (en) * 2019-06-07 2021-05-18 Bryan B. Solstin Laminar inducing apparatus
US11339720B2 (en) * 2020-02-21 2022-05-24 Raytheon Technologies Corporation Acoustic liner with non-uniform volumetric distribution
US11566564B2 (en) * 2020-07-08 2023-01-31 Raytheon Technologies Corporation Acoustically treated panels
US11668236B2 (en) 2020-07-24 2023-06-06 General Electric Company Acoustic liners with low-frequency sound wave attenuating features
US11970992B2 (en) 2021-06-03 2024-04-30 General Electric Company Acoustic cores and tools and methods for forming the same
US11739698B2 (en) * 2022-01-19 2023-08-29 General Electric Company Aero-acoustically dampened bleed valve
US11965425B2 (en) 2022-05-31 2024-04-23 General Electric Company Airfoil for a turbofan engine

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US3177970A (en) * 1961-01-21 1965-04-13 Gomma Antivibranti Applic Sound-absorbing panels with tapered holes therethrough
US3180448A (en) * 1962-01-02 1965-04-27 Aerojet General Co Laminated acoustic panel with sound absorbing cavities
AT254465B (en) * 1963-12-09 1967-05-26 Lothar Dr Ing Cremer Absorption silencers for gas pipes, in particular ventilation pipes
US3439774A (en) * 1966-01-21 1969-04-22 Boeing Co Sound energy absorbing apparatus
GB1147492A (en) * 1967-04-07 1969-04-02 Acoustics And Architecture Ltd Sound absorbing device
DE2019416B2 (en) * 1970-04-22 1972-04-20 Isoliertechnik Horst Grassmann, 6000 Frankfurt SILENCER FOR STREAMING GASES
US3688866A (en) * 1971-08-30 1972-09-05 Ibm Noise muffler for magnetic tape vacuum column
JPS4847302U (en) * 1971-10-08 1973-06-21

Also Published As

Publication number Publication date
IT1007136B (en) 1976-10-30
FR2216445A1 (en) 1974-08-30
GB1462271A (en) 1977-01-19
DE2404001C2 (en) 1983-10-27
DE2404001A1 (en) 1974-08-08
BE810492A (en) 1974-05-29
JPS5723280B2 (en) 1982-05-18
FR2216445B1 (en) 1980-06-27
US3819009A (en) 1974-06-25
JPS49106111A (en) 1974-10-08

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