BRPI0406616A - Componente absorvente do som do ar - Google Patents

Componente absorvente do som do ar

Info

Publication number
BRPI0406616A
BRPI0406616A BR0406616-2A BRPI0406616A BRPI0406616A BR PI0406616 A BRPI0406616 A BR PI0406616A BR PI0406616 A BRPI0406616 A BR PI0406616A BR PI0406616 A BRPI0406616 A BR PI0406616A
Authority
BR
Brazil
Prior art keywords
sound
wall sections
hollow chambers
incoming sound
layer
Prior art date
Application number
BR0406616-2A
Other languages
English (en)
Inventor
Christine V Lker
Original Assignee
Carcoustics Tech Ct 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 Carcoustics Tech Ct Gmbh filed Critical Carcoustics Tech Ct Gmbh
Publication of BRPI0406616A publication Critical patent/BRPI0406616A/pt

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)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

"COMPONENTE ABSORVENTE DO SOM DO AR". A presente invenção refere-se a um componente absorvente do som do ar, especialmente para automóveis, com um absorvente de ressonância (1), que apresenta uma multiplicidade de câmaras ocas (2) de distinto tamanho, distanciadas entre si, e com uma camada (8) porosa, absorvente de som, feita de material permeável ao ar, que está voltada para a incidência do som, sendo que as câmaras ocas (2) abrangem respectivamente um segmento de parede (5) oscilável, voltado para a incidência do som. Os segmentos de parede (5) osciláveis, voltados para a incidência do som, são fechados estanques a ar, sendo que o absorvente de ressonância (1) é provido de um ou vários distanciadores (10), de tal maneira que ao menos o número maior dos segmentos de parede (5) das câmaras ocas (2) voltados para a incidência do som não tem contato com a camada (8) porosa e é oscilável independente da mesma. Graças a essas características é obtida uma capacidade de absorção de som aperfeiçoada por uma ampla faixa de freq³ência.
BR0406616-2A 2003-12-23 2004-10-21 Componente absorvente do som do ar BRPI0406616A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20320100U DE20320100U1 (de) 2003-12-23 2003-12-23 Luftschallabsorbierendes Bauteil
PCT/EP2004/011899 WO2005066932A1 (de) 2003-12-23 2004-10-21 Luftschallabsorbierendes bauteil

Publications (1)

Publication Number Publication Date
BRPI0406616A true BRPI0406616A (pt) 2005-12-06

Family

ID=34585333

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0406616-2A BRPI0406616A (pt) 2003-12-23 2004-10-21 Componente absorvente do som do ar

Country Status (12)

Country Link
US (1) US20060169531A1 (pt)
EP (1) EP1697923B1 (pt)
JP (1) JP2007515340A (pt)
CN (1) CN1820304A (pt)
AT (1) ATE381087T1 (pt)
BR (1) BRPI0406616A (pt)
DE (2) DE20320100U1 (pt)
ES (1) ES2297503T3 (pt)
MX (1) MXPA05011254A (pt)
PL (1) PL1697923T3 (pt)
PT (1) PT1697923E (pt)
WO (1) WO2005066932A1 (pt)

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KR101426231B1 (ko) * 2012-11-09 2014-08-05 한화첨단소재 주식회사 블로어 성형 공법을 이용한 차량용 언더커버
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US10783869B2 (en) * 2017-09-12 2020-09-22 Honeywell International Inc. Cell structure for use in an acoustic panel, and methods of producing the same
US11568848B2 (en) 2018-04-27 2023-01-31 Toyota Motor Engineering & Manufacturing North America, Inc. Airborne acoustic absorber
IT201800006329A1 (it) * 2018-06-14 2019-12-14 Tavolo con prorpietà fonoassorbenti
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Also Published As

Publication number Publication date
PL1697923T3 (pl) 2008-05-30
JP2007515340A (ja) 2007-06-14
ATE381087T1 (de) 2007-12-15
PT1697923E (pt) 2008-02-25
WO2005066932A1 (de) 2005-07-21
ES2297503T3 (es) 2008-05-01
EP1697923B1 (de) 2007-12-12
EP1697923A1 (de) 2006-09-06
DE502004005732D1 (de) 2008-01-24
MXPA05011254A (es) 2005-12-14
US20060169531A1 (en) 2006-08-03
CN1820304A (zh) 2006-08-16
DE20320100U1 (de) 2005-05-12

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Legal Events

Date Code Title Description
B11A Dismissal acc. art.33 of ipl - examination not requested within 36 months of filing
B11Y Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette]