FR2396868A1 - Garniture insonorisante pour paroi interne de conduit de gaz, notamment de conduit de turboreacteur - Google Patents

Garniture insonorisante pour paroi interne de conduit de gaz, notamment de conduit de turboreacteur

Info

Publication number
FR2396868A1
FR2396868A1 FR7721832A FR7721832A FR2396868A1 FR 2396868 A1 FR2396868 A1 FR 2396868A1 FR 7721832 A FR7721832 A FR 7721832A FR 7721832 A FR7721832 A FR 7721832A FR 2396868 A1 FR2396868 A1 FR 2396868A1
Authority
FR
France
Prior art keywords
layer
refractory material
porous refractory
metal casing
jet pipes
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.)
Granted
Application number
FR7721832A
Other languages
English (en)
Other versions
FR2396868B1 (fr
Inventor
Jean-Paul Bernard
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.)
Safran Aircraft Engines SAS
Original Assignee
SNECMA SAS
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 SNECMA SAS filed Critical SNECMA SAS
Priority to FR7721832A priority Critical patent/FR2396868A1/fr
Publication of FR2396868A1 publication Critical patent/FR2396868A1/fr
Application granted granted Critical
Publication of FR2396868B1 publication Critical patent/FR2396868B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
    • B32B3/12—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
    • 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
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/266—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/172—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using resonance effects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/10—Properties of the layers or laminate having particular acoustical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2581/00—Seals; Sealing equipment; Gaskets

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Laminated Bodies (AREA)

Abstract

Garniture insonorisante à cavités résonnantes pour paroi interne de conduits parcourus par un flux de gaz transporteur de bruit. Un matelas souple et poreux est inséré entre les parois des cavités résonnantes et ladite paroi interne. Conduits de turboréacteurs d'aéronefs.
FR7721832A 1977-07-07 1977-07-07 Garniture insonorisante pour paroi interne de conduit de gaz, notamment de conduit de turboreacteur Granted FR2396868A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7721832A FR2396868A1 (fr) 1977-07-07 1977-07-07 Garniture insonorisante pour paroi interne de conduit de gaz, notamment de conduit de turboreacteur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7721832A FR2396868A1 (fr) 1977-07-07 1977-07-07 Garniture insonorisante pour paroi interne de conduit de gaz, notamment de conduit de turboreacteur

Publications (2)

Publication Number Publication Date
FR2396868A1 true FR2396868A1 (fr) 1979-02-02
FR2396868B1 FR2396868B1 (fr) 1980-01-04

Family

ID=9193402

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7721832A Granted FR2396868A1 (fr) 1977-07-07 1977-07-07 Garniture insonorisante pour paroi interne de conduit de gaz, notamment de conduit de turboreacteur

Country Status (1)

Country Link
FR (1) FR2396868A1 (fr)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2460779A1 (fr) * 1979-07-06 1981-01-30 Rohr Industries Inc Procede de fabrication d'une structure alveolaire d'insonorisation et structure ainsi fabriquee
JPS57143198A (en) * 1981-01-29 1982-09-04 Nashionaare Dechiyuudo E Do Co Sound attenuating lining for gas pipe passage, especially, flow pipe of turboengine blower and installation for producing same
EP0436685A1 (fr) * 1989-06-26 1991-07-17 Grumman Aerospace Corp Garniture d'insonorisation.
EP0445431A2 (fr) * 1990-03-09 1991-09-11 G + H Montage Gmbh Ecran à résonateur pour un écran amortisseur de son
EP0557597A1 (fr) * 1991-12-18 1993-09-01 Rex-Patent Graf von Rex KG Laminé pour l'isolation acoustique et thermique
EP0636780A1 (fr) * 1993-06-25 1995-02-01 Nordam Couche pour supprimer le bruit des réacteurs d'avion
EP0702141A2 (fr) * 1994-09-14 1996-03-20 Mitsubishi Jukogyo Kabushiki Kaisha Dispositif d'absorption de bruit pour un propulseur par jet supersonique
FR2765142A1 (fr) * 1997-06-30 1998-12-31 Lorraine Laminage Panneau structural leger
EP0895852A1 (fr) * 1997-08-06 1999-02-10 Usinor TÔle de structure multicouche dite tÔle sandwich
WO2010012900A2 (fr) * 2008-07-30 2010-02-04 Aircelle Panneau d'atténuation acoustique pour nacelle de moteur d'aéronef
FR2934641A1 (fr) * 2008-07-30 2010-02-05 Aircelle Sa Panneau d'attenuation acoustique pour nacelle de moteur d'aeronef
FR2938014A1 (fr) * 2008-11-06 2010-05-07 Aircelle Sa Panneau d'attenuation acoustique pour nacelle de moteur d'aeronef
DE102011108533A1 (de) * 2011-07-26 2013-01-31 Rolls-Royce Deutschland Ltd & Co Kg Abgasturbinenkonus mit dreidimensional profilierter Trennwand sowie plattenartiges Wandelement
US20150118023A1 (en) * 2013-07-03 2015-04-30 Pratt & Whitney Canada Corp. Acoustic structure for a gas turbine engine
EP3232434A1 (fr) * 2016-04-15 2017-10-18 Rohr, Inc. Panneau acoustique avec raidisseurs verticaux
US20180142621A1 (en) * 2016-11-18 2018-05-24 Rohr, Inc. Acoustic panel with sidewall stringers
US10316755B2 (en) * 2016-11-18 2019-06-11 Rohr, Inc. Acoustic panel with sidewall stringers

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2460779A1 (fr) * 1979-07-06 1981-01-30 Rohr Industries Inc Procede de fabrication d'une structure alveolaire d'insonorisation et structure ainsi fabriquee
JPS57143198A (en) * 1981-01-29 1982-09-04 Nashionaare Dechiyuudo E Do Co Sound attenuating lining for gas pipe passage, especially, flow pipe of turboengine blower and installation for producing same
US4449607A (en) * 1981-01-29 1984-05-22 S.N.E.C.M.A. Soundproofing for a gas pipe, in particular for the fan jet of a turbojet, and equipment for its fabrication
JPS6361520B2 (fr) * 1981-01-29 1988-11-29
EP0436685A4 (en) * 1989-06-26 1991-11-21 Grumman Aerospace Corporation An acoustic liner
EP0436685A1 (fr) * 1989-06-26 1991-07-17 Grumman Aerospace Corp Garniture d'insonorisation.
EP0445431A2 (fr) * 1990-03-09 1991-09-11 G + H Montage Gmbh Ecran à résonateur pour un écran amortisseur de son
EP0445431A3 (en) * 1990-03-09 1992-10-21 G + H Montage Gmbh Resonator screen for a sound damping screen
EP0557597A1 (fr) * 1991-12-18 1993-09-01 Rex-Patent Graf von Rex KG Laminé pour l'isolation acoustique et thermique
EP0636780A1 (fr) * 1993-06-25 1995-02-01 Nordam Couche pour supprimer le bruit des réacteurs d'avion
EP0702141A2 (fr) * 1994-09-14 1996-03-20 Mitsubishi Jukogyo Kabushiki Kaisha Dispositif d'absorption de bruit pour un propulseur par jet supersonique
EP0702141A3 (fr) * 1994-09-14 1998-12-02 Mitsubishi Jukogyo Kabushiki Kaisha Dispositif d'absorption de bruit pour un propulseur par jet supersonique
FR2765142A1 (fr) * 1997-06-30 1998-12-31 Lorraine Laminage Panneau structural leger
EP0888881A1 (fr) * 1997-06-30 1999-01-07 Sollac Panneau structural léger
US6387535B1 (en) 1997-08-06 2002-05-14 Usinor Sheet having a multilayer structure
EP0895852A1 (fr) * 1997-08-06 1999-02-10 Usinor TÔle de structure multicouche dite tÔle sandwich
FR2767088A1 (fr) * 1997-08-06 1999-02-12 Usinor Tole de structure multicouche dite tole sandwich
WO2010012900A3 (fr) * 2008-07-30 2014-11-13 Aircelle Panneau d'atténuation acoustique pour nacelle de moteur d'aéronef
WO2010012900A2 (fr) * 2008-07-30 2010-02-04 Aircelle Panneau d'atténuation acoustique pour nacelle de moteur d'aéronef
FR2934641A1 (fr) * 2008-07-30 2010-02-05 Aircelle Sa Panneau d'attenuation acoustique pour nacelle de moteur d'aeronef
US8899512B2 (en) 2008-07-30 2014-12-02 Aircelle Acoustic attenuation panel for aircraft for engine nacelle
FR2938014A1 (fr) * 2008-11-06 2010-05-07 Aircelle Sa Panneau d'attenuation acoustique pour nacelle de moteur d'aeronef
US8479877B2 (en) 2011-07-26 2013-07-09 Rolls-Royce Deutschland Ltd & Co Kg Gas-turbine exhaust cone with three-dimensionally profiled partition wall and plate-type wall element
DE102011108533A1 (de) * 2011-07-26 2013-01-31 Rolls-Royce Deutschland Ltd & Co Kg Abgasturbinenkonus mit dreidimensional profilierter Trennwand sowie plattenartiges Wandelement
EP2551507A3 (fr) * 2011-07-26 2017-10-04 Rolls-Royce Deutschland Ltd & Co KG Cône d'échappement d'une turbine à gaz avec une paroi de séparation profilée en trois dimensions et élément de paroi en forme de panneau
US20150118023A1 (en) * 2013-07-03 2015-04-30 Pratt & Whitney Canada Corp. Acoustic structure for a gas turbine engine
US9909501B2 (en) * 2013-07-03 2018-03-06 Pratt & Whitney Canada Corp. Acoustic structure for a gas turbine engine
EP3232434A1 (fr) * 2016-04-15 2017-10-18 Rohr, Inc. Panneau acoustique avec raidisseurs verticaux
US9978354B2 (en) 2016-04-15 2018-05-22 Rohr, Inc. Acoustic panel with vertical stiffeners
US20180142621A1 (en) * 2016-11-18 2018-05-24 Rohr, Inc. Acoustic panel with sidewall stringers
US10309305B2 (en) * 2016-11-18 2019-06-04 Rohr, Inc. Acoustic panel with sidewall stringers
US10316755B2 (en) * 2016-11-18 2019-06-11 Rohr, Inc. Acoustic panel with sidewall stringers

Also Published As

Publication number Publication date
FR2396868B1 (fr) 1980-01-04

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