IT1007136B - SOUNDPROOFING OF THE DUCT WALL PARTICULARLY FOR GAS TURBOMOTORS - Google Patents

SOUNDPROOFING OF THE DUCT WALL PARTICULARLY FOR GAS TURBOMOTORS

Info

Publication number
IT1007136B
IT1007136B IT19887/74A IT1988774A IT1007136B IT 1007136 B IT1007136 B IT 1007136B IT 19887/74 A IT19887/74 A IT 19887/74A IT 1988774 A IT1988774 A IT 1988774A IT 1007136 B IT1007136 B IT 1007136B
Authority
IT
Italy
Prior art keywords
turbomotors
soundproofing
gas
duct wall
wall particularly
Prior art date
Application number
IT19887/74A
Other languages
Italian (it)
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
Application granted granted Critical
Publication of IT1007136B publication Critical patent/IT1007136B/en

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)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Duct Arrangements (AREA)
IT19887/74A 1973-02-01 1974-01-28 SOUNDPROOFING OF THE DUCT WALL PARTICULARLY FOR GAS TURBOMOTORS IT1007136B (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
IT1007136B true IT1007136B (en) 1976-10-30

Family

ID=23282098

Family Applications (1)

Application Number Title Priority Date Filing Date
IT19887/74A IT1007136B (en) 1973-02-01 1974-01-28 SOUNDPROOFING OF THE DUCT WALL PARTICULARLY FOR GAS TURBOMOTORS

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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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
JPS6443297A (en) * 1987-08-10 1989-02-15 Yasutaka Hoshino Method for making needle hole freely openable and closable
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US5014431A (en) * 1989-07-24 1991-05-14 Arnim B. Jebe Tool for handling disposable food containing bags
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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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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
US7401682B2 (en) * 2005-08-10 2008-07-22 United Technologies Corporation Architecture for an acoustic liner
US7311175B2 (en) * 2005-08-10 2007-12-25 United Technologies Corporation Acoustic liner with bypass cooling
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
EP2961958A4 (en) * 2013-03-01 2016-11-02 United Technologies Corp Gas turbine engine noise reducing nose cone
CA2963948C (en) * 2014-10-08 2021-02-09 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
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
US20180281559A1 (en) * 2017-03-29 2018-10-04 Ford Global Technologies, Llc Acoustic air duct and air extraction system with nesting expansion chambers
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
JP7310120B2 (en) 2018-11-05 2023-07-19 ヤマハ株式会社 sound absorbing structure
JP7172457B2 (en) * 2018-11-05 2022-11-16 ヤマハ株式会社 Sound-absorbing units and sound-absorbing structures
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
US12142253B2 (en) 2021-10-05 2024-11-12 General Electric Company Solid adhesive film for acoustic liner and method
DE102022129881B4 (en) 2021-11-15 2024-09-12 Hochschule für Technik und Wirtschaft Dresden, Körperschaft des öffentlichen Rechts Sound absorption structure
KR102733001B1 (en) * 2021-12-29 2024-11-21 한국과학기술원 Broadband sound absorbing device using area division
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
US12312969B2 (en) 2023-01-17 2025-05-27 General Electric Company Airfoils for turbofan engines

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US3166149A (en) * 1965-01-19 Damped-resonator acoustical panels
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US2887173A (en) * 1957-05-22 1959-05-19 G A Societa Per Azioni Sa Sound absorbing and insulating panel
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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
BE810492A (en) 1974-05-29
DE2404001C2 (en) 1983-10-27
JPS5723280B2 (en) 1982-05-18
CA986735A (en) 1976-04-06
US3819009A (en) 1974-06-25
JPS49106111A (en) 1974-10-08
FR2216445A1 (en) 1974-08-30
DE2404001A1 (en) 1974-08-08
GB1462271A (en) 1977-01-19
FR2216445B1 (en) 1980-06-27

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