ATE340304T1 - SOUND ABSORPTION SYSTEM - Google Patents

SOUND ABSORPTION SYSTEM

Info

Publication number
ATE340304T1
ATE340304T1 AT04290399T AT04290399T ATE340304T1 AT E340304 T1 ATE340304 T1 AT E340304T1 AT 04290399 T AT04290399 T AT 04290399T AT 04290399 T AT04290399 T AT 04290399T AT E340304 T1 ATE340304 T1 AT E340304T1
Authority
AT
Austria
Prior art keywords
closing unit
sound absorption
absorption system
pipe
unit
Prior art date
Application number
AT04290399T
Other languages
German (de)
Inventor
Arnaud Vitel
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
Application granted granted Critical
Publication of ATE340304T1 publication Critical patent/ATE340304T1/en

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)

Abstract

The system (1) has a derivation device with a closing unit provided on an exhaust pipe (2). The closing unit in the pipe is closed to deflect a flow into a tube communicating with a cavity, when an acoustic unit (4) is in silencer configuration. A closing unit in another tube is closed and the closing unit in the pipe is opened, when the acoustic unit is in resonator configuration. An independent claim is also included for a method of using a derivation device.
AT04290399T 2003-03-20 2004-02-13 SOUND ABSORPTION SYSTEM ATE340304T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0303397A FR2852625B1 (en) 2003-03-20 2003-03-20 ACOUSTICAL ATTENUATION SYSTEM

Publications (1)

Publication Number Publication Date
ATE340304T1 true ATE340304T1 (en) 2006-10-15

Family

ID=32799698

Family Applications (1)

Application Number Title Priority Date Filing Date
AT04290399T ATE340304T1 (en) 2003-03-20 2004-02-13 SOUND ABSORPTION SYSTEM

Country Status (4)

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

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2362892C2 (en) * 2007-09-24 2009-07-27 Открытое акционерное общество "Автомобильный завод "Урал" Noise reduction method of exhaust system of internal combustion engine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9207838U1 (en) * 1992-06-11 1992-09-10 Heinrich Gillet GmbH & Co KG, 6732 Edenkoben silencer
JP3248381B2 (en) * 1995-01-09 2002-01-21 トヨタ自動車株式会社 Butterfly valve
DE20003519U1 (en) * 2000-02-25 2000-06-08 Wolff, Robert, 67487 Maikammer Helmholtz resonator

Also Published As

Publication number Publication date
DE602004002419T2 (en) 2007-05-03
FR2852625B1 (en) 2007-01-12
EP1460243B1 (en) 2006-09-20
EP1460243A1 (en) 2004-09-22
FR2852625A1 (en) 2004-09-24
DE602004002419D1 (en) 2006-11-02

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Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties