FR2852625B1 - Systeme d'attenuation acoustique - Google Patents

Systeme d'attenuation acoustique

Info

Publication number
FR2852625B1
FR2852625B1 FR0303397A FR0303397A FR2852625B1 FR 2852625 B1 FR2852625 B1 FR 2852625B1 FR 0303397 A FR0303397 A FR 0303397A FR 0303397 A FR0303397 A FR 0303397A FR 2852625 B1 FR2852625 B1 FR 2852625B1
Authority
FR
France
Prior art keywords
closing unit
attenuation system
pipe
unit
acoustical attenuation
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.)
Expired - Fee Related
Application number
FR0303397A
Other languages
English (en)
Other versions
FR2852625A1 (fr
Inventor
Arnaud Vitel
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.)
PSA Automobiles SA
Original Assignee
Peugeot Citroen Automobiles SA
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 Peugeot Citroen Automobiles SA filed Critical Peugeot Citroen Automobiles SA
Priority to FR0303397A priority Critical patent/FR2852625B1/fr
Priority to AT04290399T priority patent/ATE340304T1/de
Priority to DE602004002419T priority patent/DE602004002419T2/de
Priority to EP04290399A priority patent/EP1460243B1/fr
Publication of FR2852625A1 publication Critical patent/FR2852625A1/fr
Application granted granted Critical
Publication of FR2852625B1 publication Critical patent/FR2852625B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/02—Silencing apparatus characterised by method of silencing by using resonance
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/16—Silencing apparatus characterised by method of silencing by using movable parts

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
FR0303397A 2003-03-20 2003-03-20 Systeme d'attenuation acoustique Expired - Fee Related FR2852625B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR0303397A FR2852625B1 (fr) 2003-03-20 2003-03-20 Systeme d'attenuation acoustique
AT04290399T ATE340304T1 (de) 2003-03-20 2004-02-13 Schalldämpfungsanlage
DE602004002419T DE602004002419T2 (de) 2003-03-20 2004-02-13 Schalldämpfungsanlage
EP04290399A EP1460243B1 (fr) 2003-03-20 2004-02-13 Système d'atténuation acoustique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0303397A FR2852625B1 (fr) 2003-03-20 2003-03-20 Systeme d'attenuation acoustique

Publications (2)

Publication Number Publication Date
FR2852625A1 FR2852625A1 (fr) 2004-09-24
FR2852625B1 true FR2852625B1 (fr) 2007-01-12

Family

ID=32799698

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0303397A Expired - Fee Related FR2852625B1 (fr) 2003-03-20 2003-03-20 Systeme d'attenuation acoustique

Country Status (4)

Country Link
EP (1) EP1460243B1 (fr)
AT (1) ATE340304T1 (fr)
DE (1) DE602004002419T2 (fr)
FR (1) FR2852625B1 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9207838U1 (de) * 1992-06-11 1992-09-10 Heinrich Gillet GmbH & Co KG, 6732 Edenkoben Schalldämpfer
JP3248381B2 (ja) * 1995-01-09 2002-01-21 トヨタ自動車株式会社 バタフライ弁
DE20003519U1 (de) * 2000-02-25 2000-06-08 Wolff Robert Helmholtzresonator

Also Published As

Publication number Publication date
ATE340304T1 (de) 2006-10-15
DE602004002419T2 (de) 2007-05-03
EP1460243B1 (fr) 2006-09-20
FR2852625A1 (fr) 2004-09-24
DE602004002419D1 (de) 2006-11-02
EP1460243A1 (fr) 2004-09-22

Similar Documents

Publication Publication Date Title
AU2002232725A1 (en) Method and apparatus for improved noise attenuation in a dissipative internal combustion engine exhaust muffler
SE9300732L (sv) Externliggande bredbandsopererande anordning för ljuddämpning av ett kanalsystem
WO2005065244A3 (fr) Systeme d'apport et d'evacuation de gaz et de surveillance respiratoire
DE502005005008D1 (de) Schalldämpfer
ATE506525T1 (de) Schalldämpfer
DE60212453D1 (de) Hemostatisches ventil
DE502004000706D1 (de) Abgasnachbehandlungseinrichtung
CA2517751A1 (fr) Methode d'exploitation un systeme de detection d'activite vocale/suppression de silence
EP1335629A3 (fr) Système transducteur électro-accoustique avec guide d'onde à spirale
ATE491081T1 (de) Schalldämpfer für eine abgasanlage
DK0934457T3 (da) Gasströmningsdæmper
SE9704221L (sv) Anordning och förfarande vid ljuddämpande enhet
ATE385759T1 (de) Schalldämpfer für gehörschützer
FR2852625B1 (fr) Systeme d'attenuation acoustique
SE0102968L (sv) Förslutningsanordning och metod
ATE429570T1 (de) Schalldämpfer
DK1621042T3 (da) Mikrofon, höreapparat med mikrofon og indgangsstruktur til en mikrofon
ATE275364T1 (de) Gerät zur detektion der öffnung einer passage in einer körperhöhle
ATE323261T1 (de) Einrichtung zum betrieb einer feuerstätte für den häuslichen bereich
NO313730B1 (no) Öreterminal med mikrofon for stemmeopptak
SE9103522L (sv) Anordning foer ljuddaempning i ett kanalsystem, i synnerhet i ett avgassystem foer foerbraenningsmotorer
ATE369485T1 (de) Resonatorschalldämpfer
DE502008001073D1 (de) En
DE202005010473U1 (de) Schalldämpfungseinrichtung für Heizgeräte
DE60114773D1 (de) Steuerungsgerät für auslasspulsen

Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20081125