EP0680031A3 - Luftschalldämpfer - Google Patents

Luftschalldämpfer Download PDF

Info

Publication number
EP0680031A3
EP0680031A3 EP94117818A EP94117818A EP0680031A3 EP 0680031 A3 EP0680031 A3 EP 0680031A3 EP 94117818 A EP94117818 A EP 94117818A EP 94117818 A EP94117818 A EP 94117818A EP 0680031 A3 EP0680031 A3 EP 0680031A3
Authority
EP
European Patent Office
Prior art keywords
molded part
resonators
sound source
perforated plate
damping element
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
EP94117818A
Other languages
English (en)
French (fr)
Other versions
EP0680031B1 (de
EP0680031A2 (de
Inventor
Reinhard Stief
Gerhard Dr. Müller-Broll
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.)
Carl Freudenberg KG
Original Assignee
Carl Freudenberg KG
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 Carl Freudenberg KG filed Critical Carl Freudenberg KG
Publication of EP0680031A2 publication Critical patent/EP0680031A2/de
Publication of EP0680031A3 publication Critical patent/EP0680031A3/de
Application granted granted Critical
Publication of EP0680031B1 publication Critical patent/EP0680031B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Duct Arrangements (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Building Environments (AREA)
  • Exhaust Silencers (AREA)

Abstract

Luftschalldämpfer, umfassend ein plattenförmiges Formteil (1) aus polymerem Werkstoff mit zumindest zwei Kammern (2, 3), die als Resonatoren (4, 5) mit voneinander abweichenden Resonanzfrequenzen ausgebildet sind, wobei die Resonatoren (4, 5) das gesamte Formteil (1) im wesentlichen flächig überdecken. Das Formteil (1) besteht aus einem geschlossenzelligen Werkstoff. Die Resonatoren (4, 5) sind durch im wesentlichen topfförmige, in Richtung der Schallquelle (6) offene Vorwölbungen (7) gebildet, wobei das Formteil (1) auf der der Schallquelle (6) zugewandten Seite von einer Lochplatte (8) überdeckt ist, die im Bereich einer jeden Kammer (2, 3) mit zumindest zwei Durchbrechungen (9, 10) versehen ist. Das Formteil (1) und die Lochplatte (8) sind trennbar miteinander verbunden.
EP94117818A 1994-04-27 1994-11-11 Luftschalldämpfer Expired - Lifetime EP0680031B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4414566A DE4414566C2 (de) 1994-04-27 1994-04-27 Luftschalldämpfer
DE4414566 1994-04-27

Publications (3)

Publication Number Publication Date
EP0680031A2 EP0680031A2 (de) 1995-11-02
EP0680031A3 true EP0680031A3 (de) 1995-11-15
EP0680031B1 EP0680031B1 (de) 1999-06-16

Family

ID=6516487

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94117818A Expired - Lifetime EP0680031B1 (de) 1994-04-27 1994-11-11 Luftschalldämpfer

Country Status (4)

Country Link
US (1) US5587564A (de)
EP (1) EP0680031B1 (de)
JP (1) JP2986711B2 (de)
DE (1) DE4414566C2 (de)

Families Citing this family (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2815542B2 (ja) * 1994-08-31 1998-10-27 三菱電機ホーム機器株式会社 多孔質構造体を用いた吸音機構
JP2848587B2 (ja) * 1995-10-23 1999-01-20 株式会社神戸製鋼所 吸音性制振形材
GB9522724D0 (en) * 1995-11-06 1996-01-10 Acts Ltd A noise attenuator for an induction system or an exhaust system
DE19620375A1 (de) * 1996-05-21 1997-11-27 Polymer Chemie Gmbh Schalldämmendes und -dämpfendes Bauteil
TW345603B (en) * 1996-05-29 1998-11-21 Gmundner Fertigteile Gmbh A noise control device for tracks
US6015026A (en) * 1997-06-06 2000-01-18 Owens-Corning Fiberglas Technology, Inc. Acoustical diffuser assembly and method of installation
DE19804567C2 (de) * 1998-02-05 2003-12-11 Woco Franz Josef Wolf & Co Gmbh Flächenabsorber für Schallwellen und Verwendung
DE29803675U1 (de) * 1998-03-03 1999-07-15 M. Faist GmbH & Co KG, 86381 Krumbach Schallschutzabschirmung
JP2000330571A (ja) * 1999-05-21 2000-11-30 Nok Vibracoustic Kk 吸音構造体
JP2001282249A (ja) * 2000-03-30 2001-10-12 Nok Vibracoustic Kk 吸音材
JP2002029330A (ja) * 2000-07-18 2002-01-29 Nok Vibracoustic Kk 吸音構造体
US7395898B2 (en) * 2004-03-05 2008-07-08 Rsm Technologies Limited Sound attenuating structures
PL1607544T3 (pl) * 2004-06-17 2009-08-31 Heimbach Gmbh & Co Kg Urządzenie do akustycznej izolacji wykładziny ściennej, sufitowej lub podłogowej
KR100571539B1 (ko) * 2004-06-30 2006-04-24 김배영 흡음 블록 및 그 시공 방법
US7789193B2 (en) * 2006-04-27 2010-09-07 Masao Suzuki Sound insulating device
US7520370B2 (en) * 2006-05-17 2009-04-21 William Orlin Gudim Combination acoustic diffuser and absorber and method of production thereof
JP5326472B2 (ja) * 2007-10-11 2013-10-30 ヤマハ株式会社 吸音構造
EP2085962A2 (de) * 2008-02-01 2009-08-05 Yamaha Corporation Schallabsorbierende Struktur und Fahrzeugkomponente mit schallabsorbierenden Eigenschaften
US20090223738A1 (en) * 2008-02-22 2009-09-10 Yamaha Corporation Sound absorbing structure and vehicle component having sound absorption property
JP5194972B2 (ja) * 2008-04-09 2013-05-08 トヨタ紡織株式会社 防音材
JP5245641B2 (ja) * 2008-08-20 2013-07-24 ヤマハ株式会社 吸音構造体
DE102009034463A1 (de) 2009-07-22 2011-02-03 Filtro Klimatechnik Gmbh Schalldämpfungskörper
US8424637B2 (en) * 2010-01-08 2013-04-23 Richard L. Lenz, Jr. Systems and methods for providing an asymmetric cellular acoustic diffuser
ITRA20100013A1 (it) * 2010-05-04 2011-11-05 Simone Meneghel "pannello fonoisolante frangi-onda"
EP2691947A2 (de) * 2011-03-29 2014-02-05 Katholieke Universiteit Leuven Vibroakustische dämpfung oder reduzierter energieübertragung
EP2764509B1 (de) * 2011-10-06 2021-12-08 HRL Laboratories, LLC Schwingungsgedämpfte membran mit hoher bandbreite
EP2798130A1 (de) * 2011-12-31 2014-11-05 Saint-Gobain Performance Plastics Chaineux Optimiertes muster einer dämpfungsschicht für wand-, boden- und deckenkonstruktionen
US8474574B1 (en) * 2012-02-29 2013-07-02 Inoac Corporation Sound absorbing structure
US11021870B1 (en) * 2013-03-14 2021-06-01 Hrl Laboratories, Llc Sound blocking enclosures with antiresonant membranes
WO2014185271A1 (ja) * 2013-05-16 2014-11-20 株式会社トヨックス 輻射要素及び熱伝導部材
US8857563B1 (en) 2013-07-29 2014-10-14 The Boeing Company Hybrid acoustic barrier and absorber
US8869933B1 (en) * 2013-07-29 2014-10-28 The Boeing Company Acoustic barrier support structure
CN106536189B (zh) * 2014-08-20 2019-03-29 香港科技大学 消震隔音屏障
GB201415874D0 (en) * 2014-09-08 2014-10-22 Sonobex Ltd Acoustic Attenuator
TWI625446B (zh) * 2015-06-18 2018-06-01 德克薩斯大學體系董事會 用於抑制來自液體中的源的聲能的共振器、共振器陣列和雜訊消減系統
US9630575B2 (en) * 2015-09-30 2017-04-25 GM Global Technology Operations LLC Panel assembly with noise attenuation system
CN110024023B (zh) * 2016-11-29 2020-08-07 富士胶片株式会社 防音结构
JP6636471B2 (ja) * 2017-02-16 2020-01-29 株式会社ニフコ 吸音体、および、吸音構造
US10741159B2 (en) 2017-09-10 2020-08-11 Douglas Peter Magyari Acoustic-absorber system and method
JP2019194743A (ja) * 2019-08-19 2019-11-07 株式会社リコー 電気機器
DE102019128209B4 (de) * 2019-10-18 2023-02-02 Daniel Mohr Schallabsorbierende Vorrichtung mit Noppenfolienverbund und Verwendung
AU2021211657A1 (en) 2020-01-21 2022-08-18 Adbm Corp. Simultaneously attenuating high-frequencies and amplifying low-frequencies of underwater sounds

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2904125A (en) * 1953-05-08 1959-09-15 Emhart Mfg Co Straight through silencer
EP0246464A1 (de) * 1986-05-14 1987-11-25 Pape, Hans Schallschluckbeschichtung einer Akustikwand oder Akustikdecke
EP0317380A1 (de) * 1987-10-27 1989-05-24 Thomson-Csf Bekleidung mit niedriger Schallrefektion
EP0454949A2 (de) * 1990-04-11 1991-11-06 Firma Carl Freudenberg Luftschall absorbierendes Formteil

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2124463A (en) * 1935-11-16 1938-07-19 Woodall Industries Inc Sound insulation
US2887173A (en) * 1957-05-22 1959-05-19 G A Societa Per Azioni Sa Sound absorbing and insulating panel
US3269484A (en) * 1963-09-24 1966-08-30 Lighter Stephen Acoustic absorbing structure
DE2632290C3 (de) * 1976-07-17 1980-02-14 Messerschmitt-Boelkow-Blohm Gmbh, 8000 Muenchen Schallreduktion durch mitschwingende Resonatoren
DE2921050A1 (de) * 1979-05-23 1980-11-27 Fraunhofer Ges Forschung Schallabsorbierendes bauelement aus kunststoff-folie
US4242398A (en) * 1979-01-16 1980-12-30 Teijin Limited Fibrous shaped article having non-level surface
US4584232A (en) * 1983-01-20 1986-04-22 Illbruck Gmbh Schaumstofftechnik Foam material sound absorption
CH671848B (de) * 1986-05-16 1989-09-29
US4821841A (en) * 1987-06-16 1989-04-18 Bruce Woodward Sound absorbing structures
DE8803634U1 (de) * 1988-03-17 1988-04-28 Gebrüder Trox, Gesellschaft mit beschränkter Haftung, 4133 Neukirchen-Vluyn Schalldämpfer für strömende Gase in Lüftungs- und Klimaanlagen
CH678201A5 (de) * 1989-03-17 1991-08-15 Lignoform Formsperrholz Ag

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2904125A (en) * 1953-05-08 1959-09-15 Emhart Mfg Co Straight through silencer
EP0246464A1 (de) * 1986-05-14 1987-11-25 Pape, Hans Schallschluckbeschichtung einer Akustikwand oder Akustikdecke
EP0317380A1 (de) * 1987-10-27 1989-05-24 Thomson-Csf Bekleidung mit niedriger Schallrefektion
EP0454949A2 (de) * 1990-04-11 1991-11-06 Firma Carl Freudenberg Luftschall absorbierendes Formteil

Also Published As

Publication number Publication date
US5587564A (en) 1996-12-24
EP0680031B1 (de) 1999-06-16
DE4414566A1 (de) 1995-11-02
DE4414566C2 (de) 1997-11-20
JP2986711B2 (ja) 1999-12-06
JPH0844370A (ja) 1996-02-16
EP0680031A2 (de) 1995-11-02

Similar Documents

Publication Publication Date Title
EP0680031A3 (de) Luftschalldämpfer
US4001473A (en) Sound attenuating structural honeycomb sandwich material
DE4241518C1 (de) Umkleidung für ein in einer Drehbewegung befindliches Rad
EP0781445B1 (de) Schichtenabsorber zum absorbieren von akustischen schallwellen
US4421811A (en) Method of manufacturing double layer attenuation panel with two layers of linear type material
US4294329A (en) Double layer attenuation panel with two layers of linear type material
US6607625B2 (en) Process for the production of an acoustively resistive layer, resistive layer thus obtained, and wall using such layer
EP0255473B1 (de) Verfahren zum Herstellen eines Luftschall absorbierenden Bauelements
EP0962013B1 (de) Lambda/4-absorber mit einstellbarer bandbreite
DE2314396C2 (de)
EP0131616A1 (de) Schallabsorptionsplatte.
EP0931309A1 (de) Einrichtung zum absorbieren und/oder dämpfen von schallwellen
DE60105521D1 (de) Schallabsorbiernedes Element insbesondere für Flugzeugtriebwerke
CA2487466A1 (en) Oil pan
SE9503933L (sv) Panelelement
CA2326176A1 (en) Composite body, especially a motor vehicle body element
WO2004001718A1 (de) Schall-absorber mit zwei einen hohlraum begrenzenden teilen
EP1080879A3 (de) Heissverformbare Pressstoffplatte
DE19607290A1 (de) Akustischer Absorber
DE3242940A1 (de) Akustisch wirksames bauelement
HU218513B (hu) Többrétegű építőelem
EP0046559B1 (de) Resonatorschallabsorptionselement
EP1321593A3 (de) Platte als Prallwandelement und Akustikelement
EP1109150A3 (de) Akustikplatte
WO1999048660A1 (en) A composite panel and a method for making the same

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): CH FR GB LI SE

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): CH FR GB LI SE

17P Request for examination filed

Effective date: 19951102

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

17Q First examination report despatched

Effective date: 19981126

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH FR GB LI SE

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: HEPP, WENGER & RYFFEL AG

Ref country code: CH

Ref legal event code: EP

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19990706

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20021021

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20021119

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20021125

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20021126

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20031111

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20031112

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20031130

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20031130

EUG Se: european patent has lapsed
GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20031111

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040730

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST