[go: up one dir, main page]

FR2843999B1 - ACTIVE MOUTH NOISE ATTENUATION DEVICE AT AN EXHAUST OR ADMISSION PIPE - Google Patents

ACTIVE MOUTH NOISE ATTENUATION DEVICE AT AN EXHAUST OR ADMISSION PIPE

Info

Publication number
FR2843999B1
FR2843999B1 FR0210871A FR0210871A FR2843999B1 FR 2843999 B1 FR2843999 B1 FR 2843999B1 FR 0210871 A FR0210871 A FR 0210871A FR 0210871 A FR0210871 A FR 0210871A FR 2843999 B1 FR2843999 B1 FR 2843999B1
Authority
FR
France
Prior art keywords
exhaust
noise attenuation
attenuation device
admission pipe
mouth noise
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
FR0210871A
Other languages
French (fr)
Other versions
FR2843999A1 (en
Inventor
Alain Haupais
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.)
Comptoir de la Technologie
Original Assignee
Comptoir de la Technologie
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 Comptoir de la Technologie filed Critical Comptoir de la Technologie
Priority to FR0210871A priority Critical patent/FR2843999B1/en
Priority to AU2003271828A priority patent/AU2003271828A1/en
Priority to EP03753666A priority patent/EP1534939A1/en
Priority to PCT/FR2003/002433 priority patent/WO2004022931A1/en
Publication of FR2843999A1 publication Critical patent/FR2843999A1/en
Application granted granted Critical
Publication of FR2843999B1 publication Critical patent/FR2843999B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
    • F02M35/1244—Intake silencers ; Sound modulation, transmission or amplification using interference; Masking or reflecting sound
    • F02M35/125—Intake silencers ; Sound modulation, transmission or amplification using interference; Masking or reflecting sound by using active elements, e.g. speakers
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10373—Sensors for intake systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/0027—Pulsation and noise damping means
    • 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
    • G10K11/17879—General system configurations using both a reference signal and an error signal
    • G10K11/17881—General system configurations using both a reference signal and an error signal the reference signal being an acoustic signal, e.g. recorded with a microphone
    • 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
    • F01N2230/00—Combination of silencers and other devices
    • F01N2230/02—Exhaust filters
    • 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
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/033—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Combustion & Propulsion (AREA)
  • Analytical Chemistry (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Exhaust Silencers (AREA)
FR0210871A 2002-09-03 2002-09-03 ACTIVE MOUTH NOISE ATTENUATION DEVICE AT AN EXHAUST OR ADMISSION PIPE Expired - Fee Related FR2843999B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR0210871A FR2843999B1 (en) 2002-09-03 2002-09-03 ACTIVE MOUTH NOISE ATTENUATION DEVICE AT AN EXHAUST OR ADMISSION PIPE
AU2003271828A AU2003271828A1 (en) 2002-09-03 2003-07-31 Active vent noise reduction device for use with an exhaust or intake pipe
EP03753666A EP1534939A1 (en) 2002-09-03 2003-07-31 Active vent noise reduction device for use with an exhaust or intake pipe
PCT/FR2003/002433 WO2004022931A1 (en) 2002-09-03 2003-07-31 Active vent noise reduction device for use with an exhaust or intake pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0210871A FR2843999B1 (en) 2002-09-03 2002-09-03 ACTIVE MOUTH NOISE ATTENUATION DEVICE AT AN EXHAUST OR ADMISSION PIPE

Publications (2)

Publication Number Publication Date
FR2843999A1 FR2843999A1 (en) 2004-03-05
FR2843999B1 true FR2843999B1 (en) 2006-01-27

Family

ID=31503061

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0210871A Expired - Fee Related FR2843999B1 (en) 2002-09-03 2002-09-03 ACTIVE MOUTH NOISE ATTENUATION DEVICE AT AN EXHAUST OR ADMISSION PIPE

Country Status (4)

Country Link
EP (1) EP1534939A1 (en)
AU (1) AU2003271828A1 (en)
FR (1) FR2843999B1 (en)
WO (1) WO2004022931A1 (en)

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1512014A (en) * 1974-06-21 1978-05-24 Univ Leeds Ind Service Ltd Method of attenuating longitudinal compression waves travelling in a gas filled duct
JPS59201915A (en) * 1983-04-30 1984-11-15 Hino Motors Ltd Exhaust equipment of engine
US5097923A (en) * 1988-02-19 1992-03-24 Noise Cancellation Technologies, Inc. Active sound attenation system for engine exhaust systems and the like
GB9003959D0 (en) * 1990-02-21 1990-04-18 Ross Colin F Active control of internal combustion engine performance
US5319165A (en) * 1990-04-25 1994-06-07 Ford Motor Company Dual bandpass secondary source
EP0470656A1 (en) * 1990-08-10 1992-02-12 General Motors Corporation Method and apparatus for attenuating engine noise
GB9118779D0 (en) * 1991-08-29 1991-10-16 Active Noise & Vibration Tech Muffler
US5313407A (en) * 1992-06-03 1994-05-17 Ford Motor Company Integrated active vibration cancellation and machine diagnostic system
US5377275A (en) * 1992-07-29 1994-12-27 Kabushiki Kaisha Toshiba Active noise control apparatus
ATE226684T1 (en) 1998-07-22 2002-11-15 Friedmund Nagel DEVICE AND METHOD FOR REDUCING SOUND EMISSIONS IN COMBUSTION ENGINES AND FOR THE DIAGNOSIS THEREOF
FR2812751B1 (en) * 2000-08-01 2002-11-08 Ecia Equip Composants Ind Auto ACOUSTIC DEVICE FOR AN ACTIVE NOISE MITIGATION SYSTEM

Also Published As

Publication number Publication date
AU2003271828A1 (en) 2004-03-29
EP1534939A1 (en) 2005-06-01
WO2004022931A1 (en) 2004-03-18
FR2843999A1 (en) 2004-03-05

Similar Documents

Publication Publication Date Title
FR2825413B1 (en) DEVICE FOR TAKING AIR BY CENTRIPIC FLOW
FR2791248B1 (en) DEVICE FOR ANALYZING AUSCULTATORY NOISE, IN PARTICULAR RESPIRATORY NOISE
ATE550527T1 (en) EXHAUST SYSTEM FOR SMALL ENGINE
FR2845454B1 (en) CONNECTION VERIFICATION DEVICE AND STRUCTURE FOR PIPE AND FITTING
DE69923403D1 (en) exhaust gas cleaning device
EP1788212A4 (en) GUIDE STRUCTURE AND EXHAUST EMISSION CONTROL DEVICE
ITTO20020387A0 (en) ENGINE INTAKE CONTROL SYSTEM.
ITTO20020486A1 (en) INTAKE SILENCER.
FR2859374B1 (en) MOUTH PROTECTION DEVICE
FR2843999B1 (en) ACTIVE MOUTH NOISE ATTENUATION DEVICE AT AN EXHAUST OR ADMISSION PIPE
ITMI20020925A0 (en) THROTTLE DEVICE FOR A FLOWING FLUID
EP1639406A4 (en) SOUNDPROOFING DEVICE
TR200401570T4 (en) Apparatus for drilling pipes
SE0301876D0 (en) Locking device for mounting at least one exhaust cleaning component in an exhaust passage
FR2801634B1 (en) ACTIVE NOISE ATTENUATION DEVICE OF AN ENGINE COMPRISING AT LEAST TWO EXHAUST OUTLETS
FR2816006B1 (en) DEVICE FOR SEALING AIR INTAKE DUCTS OF AN ENGINE
FR2874429B1 (en) DEVICE FOR COUPLING THERMOGRAVIMETRIC ANALYZES AND ACOUSTIC EMISSION MEASUREMENTS
FR2869521B1 (en) DEVICE FOR MEASURING THE ELASTICITY OF A HUMAN OR ANIMAL ORGAN THROUGH A CONDUIT
FR2856551B1 (en) MICROPHONE INCLUDING A STRUCTURE NOISE DECOUPLING MEANS COMPRISING AT LEAST ONE ELASTIC ELEMENT
FR2812751B1 (en) ACOUSTIC DEVICE FOR AN ACTIVE NOISE MITIGATION SYSTEM
FR2871872B1 (en) VENTILATION CONDUIT COMPRISING NOISE MITIGATION MEANS
ITRM20010235A0 (en) DEVICE AND METHOD FOR ADDING AN ADDITIVE TO A FLUID STREAM.
DE60306879D1 (en) Pulsating combustion engine
FR2895443B1 (en) EXHAUST NOISE REDUCING DEVICE
ITTO20020223A1 (en) SEALING STRUCTURE OF AN AIR INTAKE DEVICE.

Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20080531