WO2010040837A3 - Schalldämpfer für ein hilfstriebwerk eines flugzeugs - Google Patents

Schalldämpfer für ein hilfstriebwerk eines flugzeugs Download PDF

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Publication number
WO2010040837A3
WO2010040837A3 PCT/EP2009/063206 EP2009063206W WO2010040837A3 WO 2010040837 A3 WO2010040837 A3 WO 2010040837A3 EP 2009063206 W EP2009063206 W EP 2009063206W WO 2010040837 A3 WO2010040837 A3 WO 2010040837A3
Authority
WO
WIPO (PCT)
Prior art keywords
aircraft
sound absorber
housing
auxiliary engine
flow channel
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.)
Ceased
Application number
PCT/EP2009/063206
Other languages
English (en)
French (fr)
Other versions
WO2010040837A2 (de
Inventor
Rudolf Starobinski
Matthias Siercke
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.)
Airbus Operations GmbH
Original Assignee
Airbus Operations GmbH
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 Airbus Operations GmbH filed Critical Airbus Operations GmbH
Priority to EP09736200A priority Critical patent/EP2334558B1/de
Priority to US13/123,256 priority patent/US8763751B2/en
Priority to DE102010006143.3A priority patent/DE102010006143B4/de
Publication of WO2010040837A2 publication Critical patent/WO2010040837A2/de
Publication of WO2010040837A3 publication Critical patent/WO2010040837A3/de
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • B64D41/00—Power installations for auxiliary purposes
    • 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
    • B64D33/04—Arrangement in aircraft of power plant parts or auxiliaries not otherwise provided for of exhaust outlets or jet pipes
    • B64D33/06—Silencing exhaust or propulsion jets
    • 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
    • F02C7/24—Heat or noise insulation
    • 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
    • F02C7/32—Arrangement, mounting, or driving, of auxiliaries
    • 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
    • B64D2033/0213—Arrangement in aircraft of power plant parts or auxiliaries not otherwise provided for of combustion air intakes specially adapted for auxiliary power units (APU's)
    • 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
    • B64D41/00—Power installations for auxiliary purposes
    • B64D2041/002—Mounting arrangements for auxiliary power units (APU's)
    • 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
    • F05D2220/00—Application
    • F05D2220/50—Application for auxiliary power units (APU's)
    • 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
    • Y02T50/40—Weight reduction

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Exhaust Silencers (AREA)

Abstract

Ein Schalldämpfer (2) für ein Hilfstriebwerk eines Flugzeugs weist einen Einlass (46), einen Auslass (48), ein Gehäuse (4) und einen in dem Gehäuse (4) angeordneten Strömungskanal (6) mit einem porösen Wandmaterial auf. Zwischen dem Gehäuse (4) und dem Strömungskanal (6) ist ein Zwischenraum gebildet ist, der mittels einer oder mehrerer Partitionen (8) in um den Strömungskanal (6) herum angeordnete äußere Zellen (10-26) unterteilt ist. Dadurch wird ein sehr kompakter Schalldämpfer mit einer sehr guten Schalldämmung ermöglicht. Durch Unterteilen der äußeren Zellen (10-26) in Außenbereiche und Innenbereiche, eine Formanpassung des Schalldämpfers (2) an eine Hecksektion des Flugzeugs sowie durch Anbringen eines ringförmigen Kanals an dem Auslass (48) kann die Schalldämpfung weiter verbessert werden.
PCT/EP2009/063206 2008-10-10 2009-10-09 Schalldämpfer für ein hilfstriebwerk eines flugzeugs Ceased WO2010040837A2 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP09736200A EP2334558B1 (de) 2008-10-10 2009-10-09 Schalldämpfer für ein hilfstriebwerk eines flugzeugs
US13/123,256 US8763751B2 (en) 2008-10-10 2009-10-09 Silencer for an auxiliary power unit of an aircraft
DE102010006143.3A DE102010006143B4 (de) 2008-10-10 2010-01-29 Schalldämpfer für ein Hilfstriebwerk eines Flugzeugs

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
US19583508P 2008-10-10 2008-10-10
US61/195,835 2008-10-10
DE102008051241.9 2008-10-10
DE102008051241A DE102008051241B4 (de) 2008-10-10 2008-10-10 Schalldämpfer für ein Hilfstriebwerk eines Flugzeugs
US14832809P 2009-01-29 2009-01-29
DE102009006579.2 2009-01-29
DE102009006579A DE102009006579A1 (de) 2008-10-10 2009-01-29 Schalldämpfer für ein Hilfstriebwerk eines Flugzeugs
US61/148,328 2009-01-29

Publications (2)

Publication Number Publication Date
WO2010040837A2 WO2010040837A2 (de) 2010-04-15
WO2010040837A3 true WO2010040837A3 (de) 2010-07-08

Family

ID=41432877

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/063206 Ceased WO2010040837A2 (de) 2008-10-10 2009-10-09 Schalldämpfer für ein hilfstriebwerk eines flugzeugs

Country Status (4)

Country Link
US (1) US8763751B2 (de)
EP (2) EP2334558B1 (de)
DE (3) DE102008051241B4 (de)
WO (1) WO2010040837A2 (de)

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DE102008051241B4 (de) 2008-10-10 2011-06-16 Airbus Operations Gmbh Schalldämpfer für ein Hilfstriebwerk eines Flugzeugs
US8307857B2 (en) * 2010-08-04 2012-11-13 Honeywell International Inc. Insulation assembly for use with an auxiliary power unit having an exhaust muffler
FR2978989B1 (fr) * 2011-08-12 2013-07-26 Aircelle Sa Cone d'ejection pour turboreacteur d'aeronef
DE102011114705A1 (de) 2011-09-30 2013-04-04 Airbus Operations Gmbh Schalldämpfer für ein Hilfstriebwerk eines Flugzeugs
US9592918B2 (en) * 2014-06-23 2017-03-14 Rohr, Inc. Acoustic liner
US9771868B2 (en) * 2015-07-21 2017-09-26 The Boeing Company Sound attenuation apparatus and method
US9587563B2 (en) 2015-07-21 2017-03-07 The Boeing Company Sound attenuation apparatus and method
FR3042541B1 (fr) * 2015-10-20 2019-08-09 Airbus Helicopters Conduit d'ejection de gaz a traitement acoustique, aeronef et procede de fabrication d'un tel conduit
US9764818B2 (en) 2016-02-10 2017-09-19 Rohr, Inc. Structural, cellular core with corrugated support walls
US9761216B2 (en) 2016-02-10 2017-09-12 Rohr, Inc. Acoustic panel with angled corrugated core structures
US9978354B2 (en) * 2016-04-15 2018-05-22 Rohr, Inc. Acoustic panel with vertical stiffeners
US9704467B1 (en) * 2016-04-15 2017-07-11 Rohr, Inc. Acoustic panel with corrugated baffles and septums
US10414481B2 (en) 2017-02-14 2019-09-17 Rohr, Inc. Method for forming a structural panel
US10525636B2 (en) 2017-06-19 2020-01-07 Rohr, Inc. Process for forming a fiber-reinforced composite structure
US10695986B2 (en) 2017-08-22 2020-06-30 Rohr, Inc. Method for forming a structural panel
US10906659B2 (en) 2018-04-03 2021-02-02 Rohr, Inc. Structured panel with structural reinforcement(s)
US11433990B2 (en) 2018-07-09 2022-09-06 Rohr, Inc. Active laminar flow control system with composite panel
US11398214B2 (en) 2018-12-14 2022-07-26 Rohr, Inc. Forming a structured panel with one or more structural reinforcements
US11242822B2 (en) 2018-12-14 2022-02-08 Rohr, Inc. Structured panel with multi-panel structure(s)
US11572850B2 (en) 2019-06-04 2023-02-07 Rohr, Inc. Acoustic panel with one or more structural stiffeners
US11300053B2 (en) 2019-10-02 2022-04-12 Honeywell International Inc. Passive flame arrestor system
DE102020201417A1 (de) * 2020-02-05 2021-08-05 kopter germany GmbH Rotorsystem für ein Fluggerät

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US20080078863A1 (en) * 2006-09-25 2008-04-03 The Boeing Company Thermally compliant APU exhaust duct arrangements and associated systems and methods

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Publication number Priority date Publication date Assignee Title
US20020104707A1 (en) * 2001-02-02 2002-08-08 The Boeing Company Acoustic muffler for turbine engine
US20060043236A1 (en) * 2004-09-02 2006-03-02 Campbell Thomas A Integrated axially varying engine muffler, and associated methods and systems
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Also Published As

Publication number Publication date
EP2334558B1 (de) 2012-12-05
EP2543600A2 (de) 2013-01-09
DE102010006143B4 (de) 2014-10-09
US8763751B2 (en) 2014-07-01
DE102008051241B4 (de) 2011-06-16
EP2543600A3 (de) 2014-06-18
DE102009006579A1 (de) 2010-08-05
DE102008051241A1 (de) 2010-04-15
US20110303786A1 (en) 2011-12-15
EP2334558A2 (de) 2011-06-22
WO2010040837A2 (de) 2010-04-15
DE102010006143A1 (de) 2011-06-01
EP2543600B1 (de) 2018-04-25

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