FR2812442B1 - DEVICE FOR ACTIVE ATTENUATION OF SOUND WAVES PRODUCED BY AN EXHAUST LINE - Google Patents

DEVICE FOR ACTIVE ATTENUATION OF SOUND WAVES PRODUCED BY AN EXHAUST LINE

Info

Publication number
FR2812442B1
FR2812442B1 FR0010077A FR0010077A FR2812442B1 FR 2812442 B1 FR2812442 B1 FR 2812442B1 FR 0010077 A FR0010077 A FR 0010077A FR 0010077 A FR0010077 A FR 0010077A FR 2812442 B1 FR2812442 B1 FR 2812442B1
Authority
FR
France
Prior art keywords
sound waves
exhaust line
waves produced
active attenuation
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
FR0010077A
Other languages
French (fr)
Other versions
FR2812442A1 (en
Inventor
Alain Michel Georges Rudi
Francis Rinckel
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.)
ECIA Equipements et Composants pour lIndustrie Automobile SA
Original Assignee
ECIA Equipements et Composants pour lIndustrie Automobile 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 ECIA Equipements et Composants pour lIndustrie Automobile SA filed Critical ECIA Equipements et Composants pour lIndustrie Automobile SA
Priority to FR0010077A priority Critical patent/FR2812442B1/en
Priority to AU2001285979A priority patent/AU2001285979A1/en
Priority to PCT/FR2001/002464 priority patent/WO2002010560A1/en
Priority to DE10193139T priority patent/DE10193139T1/en
Publication of FR2812442A1 publication Critical patent/FR2812442A1/en
Application granted granted Critical
Publication of FR2812442B1 publication Critical patent/FR2812442B1/en
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
    • F01N1/06—Silencing apparatus characterised by method of silencing by using interference effect
    • F01N1/065—Silencing apparatus characterised by method of silencing by using interference effect by using an active noise source, e.g. speakers
    • 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
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1785—Methods, e.g. algorithms; Devices
    • G10K11/17857—Geometric disposition, e.g. placement of microphones
    • 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
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1787—General system configurations
    • G10K11/17875—General system configurations using an error signal without a reference signal, e.g. pure feedback
    • 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
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/10—Applications
    • G10K2210/128—Vehicles
    • G10K2210/1282—Automobiles
    • G10K2210/12822—Exhaust pipes or mufflers

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)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Exhaust Silencers (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
FR0010077A 2000-07-31 2000-07-31 DEVICE FOR ACTIVE ATTENUATION OF SOUND WAVES PRODUCED BY AN EXHAUST LINE Expired - Fee Related FR2812442B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR0010077A FR2812442B1 (en) 2000-07-31 2000-07-31 DEVICE FOR ACTIVE ATTENUATION OF SOUND WAVES PRODUCED BY AN EXHAUST LINE
AU2001285979A AU2001285979A1 (en) 2000-07-31 2001-07-26 Device for active attenuation of sound waves produced by an exhaust line
PCT/FR2001/002464 WO2002010560A1 (en) 2000-07-31 2001-07-26 Device for active attenuation of sound waves produced by an exhaust line
DE10193139T DE10193139T1 (en) 2000-07-31 2001-07-26 Device for actively reducing deep noises generated by an exhaust line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0010077A FR2812442B1 (en) 2000-07-31 2000-07-31 DEVICE FOR ACTIVE ATTENUATION OF SOUND WAVES PRODUCED BY AN EXHAUST LINE

Publications (2)

Publication Number Publication Date
FR2812442A1 FR2812442A1 (en) 2002-02-01
FR2812442B1 true FR2812442B1 (en) 2003-01-24

Family

ID=8853141

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0010077A Expired - Fee Related FR2812442B1 (en) 2000-07-31 2000-07-31 DEVICE FOR ACTIVE ATTENUATION OF SOUND WAVES PRODUCED BY AN EXHAUST LINE

Country Status (4)

Country Link
AU (1) AU2001285979A1 (en)
DE (1) DE10193139T1 (en)
FR (1) FR2812442B1 (en)
WO (1) WO2002010560A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004040421A1 (en) * 2004-08-19 2006-03-09 J. Eberspächer GmbH & Co. KG Active exhaust silencer
DE102011089772B4 (en) * 2011-12-23 2016-09-29 Eberspächer Exhaust Technology GmbH & Co. KG exhaust system
DE102014101826B4 (en) 2014-02-13 2016-08-04 Tenneco Gmbh Sounder system for a motor vehicle
DE102017120610A1 (en) * 2017-09-07 2019-03-07 Faurecia Emissions Control Technologies, Germany Gmbh Sound generating assembly for an exhaust system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1267402B1 (en) * 1994-02-22 1997-02-05 Electronic Sound Attenuation S ACTIVE SILENCER FOR EXHAUST GAS.
JPH09209860A (en) * 1996-01-30 1997-08-12 Tenetsukusu:Kk Speaker installation structure

Also Published As

Publication number Publication date
DE10193139T1 (en) 2003-07-03
AU2001285979A1 (en) 2002-02-13
WO2002010560A1 (en) 2002-02-07
FR2812442A1 (en) 2002-02-01

Similar Documents

Publication Publication Date Title
DE60010030D1 (en) Echo cancellation device
DE69328544T2 (en) Conjugate transducers for acoustic waves
IT1309646B1 (en) DEVICE TO SUPPRESS ACOUSTIC VIBRATIONS VIA SOLID
FR2797482B1 (en) VIBRATION DAMPER DEVICE HAVING HIGH DURABILITY OF THE ELASTIC BODY
DE60029436D1 (en) ACOUSTIC ECHO COMPENSATOR
DE69635466D1 (en) Processing device for surround sound signals
DE69934069D1 (en) Sound effect adding device
FR2812442B1 (en) DEVICE FOR ACTIVE ATTENUATION OF SOUND WAVES PRODUCED BY AN EXHAUST LINE
FR2791874B1 (en) EAR LOBE PIERCING DEVICE
DE69902623D1 (en) Intermediate amplifier of an OFDM transmission signal
DK0717272T3 (en) Method for measuring the propagation rate of ultrasonic acoustic waves through rocks
FR2743929B1 (en) DEVICE FOR GENERATING ULTRASONIC WAVES
DE59602222D1 (en) Sound absorbing device
FR2830119B1 (en) ACOUSTIC DEVICE FOR ATTENUATING SOUND WAVES
FR2792802B1 (en) HYDROPHONE FOR THE RECEPTION OF ACOUSTIC OR SEISMIC WAVES
FR2812751B1 (en) ACOUSTIC DEVICE FOR AN ACTIVE NOISE MITIGATION SYSTEM
DE60043890D1 (en) LOCATION SYSTEM BY MEANS OF SOUND WAVES AND UNDERWATERBOJE
FR2818809B1 (en) ELECTROMAGNETIC WAVE FILTERING DEVICE
FR2867863B1 (en) DEVICE FOR TRANSMITTING SEISMIC VIBRATION WAVES
DK0821823T3 (en) Muffler for ultrasonic waves
FR2856107B1 (en) METHOD AND DEVICE FOR ATTENUATING NOISE PRODUCED OUTPUT OF AN EXHAUST LINE
NO961690D0 (en) Silencer for absorption of acoustic waves, especially for underwater use
KR970003172U (en) Degaussing coil driving device to prevent harmful waves
FR2815511B1 (en) ACOUSTIC SPEAKER SUPPORT DEVICE
KR970051077U (en) Ultrasonic dispersion tray of exhaust gas purification device

Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20120330