FR2385972A2 - Dispositifs absorbeurs acoustiques actifs pour des conduits - Google Patents
Dispositifs absorbeurs acoustiques actifs pour des conduitsInfo
- Publication number
- FR2385972A2 FR2385972A2 FR7710497A FR7710497A FR2385972A2 FR 2385972 A2 FR2385972 A2 FR 2385972A2 FR 7710497 A FR7710497 A FR 7710497A FR 7710497 A FR7710497 A FR 7710497A FR 2385972 A2 FR2385972 A2 FR 2385972A2
- Authority
- FR
- France
- Prior art keywords
- ducts
- application
- enclosure
- active acoustical
- duct
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/033—Noise absorbers
- F16L55/0333—Noise absorbers by means of an active system
-
- 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
-
- 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
- G10K2210/112—Ducts
-
- 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
- G10K2210/30—Means
- G10K2210/301—Computational
- G10K2210/3011—Single acoustic input
-
- 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
- G10K2210/30—Means
- G10K2210/301—Computational
- G10K2210/3044—Phase shift, e.g. complex envelope processing
-
- 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
- G10K2210/30—Means
- G10K2210/301—Computational
- G10K2210/3045—Multiple acoustic inputs, single acoustic output
-
- 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
- G10K2210/30—Means
- G10K2210/321—Physical
- G10K2210/3214—Architectures, e.g. special constructional features or arrangements of features
-
- 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
- G10K2210/30—Means
- G10K2210/321—Physical
- G10K2210/3227—Resonators
-
- 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
- G10K2210/30—Means
- G10K2210/321—Physical
- G10K2210/3229—Transducers
Abstract
L'invention a pour objet des perfectionnements aux absorbeurs acoustiques actifs décrits dans la demande du brevet principal. Un absorbeur selon la présente demande est constitué par un tripole intégré composé un dipole 5a, 5b et d'un monopole 5c logés tous trois dans une même enceinte acoustique 3 qui est située sur le côté d'un conduit 1 dans lequel circulent des bruits que l'on désire atténuer. L'enceinte 3 communique avec le conduit par trois pavillons convergents 4a, 4b, 4c Une application est l'atténuation des bruits dans les conduits tels que les gaines de ventilation.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7710497A FR2385972A2 (fr) | 1977-04-01 | 1977-04-01 | Dispositifs absorbeurs acoustiques actifs pour des conduits |
US05/891,340 US4177874A (en) | 1977-04-01 | 1978-03-29 | Active acoustic sound absorber device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7710497A FR2385972A2 (fr) | 1977-04-01 | 1977-04-01 | Dispositifs absorbeurs acoustiques actifs pour des conduits |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2385972A2 true FR2385972A2 (fr) | 1978-10-27 |
FR2385972B2 FR2385972B2 (fr) | 1981-09-18 |
Family
ID=9189147
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7710497A Granted FR2385972A2 (fr) | 1977-04-01 | 1977-04-01 | Dispositifs absorbeurs acoustiques actifs pour des conduits |
Country Status (2)
Country | Link |
---|---|
US (1) | US4177874A (fr) |
FR (1) | FR2385972A2 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2438796A1 (fr) * | 1978-10-13 | 1980-05-09 | Anvar | Procedes et dispositifs anti-bruit pour accelerer le tirage des conduits d'evacuation de fumees et de gaz ou des conduits d'aeration |
EP0470656A1 (fr) * | 1990-08-10 | 1992-02-12 | General Motors Corporation | Méthode et dispositif d'atténuation du bruit d'un moteur |
DE10021031A1 (de) * | 2000-05-02 | 2001-11-08 | Mann & Hummel Filter | Leitungssystem mit elektromechanischem Wandler zur Erzeugung eines Korrekturgeräusches |
Families Citing this family (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4473906A (en) * | 1980-12-05 | 1984-09-25 | Lord Corporation | Active acoustic attenuator |
US4449235A (en) * | 1982-07-14 | 1984-05-15 | The United States Of America As Represented By The Secretary Of The Air Force | Electronic cancelling of acoustic traveling waves |
WO1989007701A1 (fr) * | 1988-02-19 | 1989-08-24 | Noise Cancellation Technologies, Inc. | Systeme actif d'attenuation sonore pour systemes d'echappement d e moteur et analogue |
US5097923A (en) * | 1988-02-19 | 1992-03-24 | Noise Cancellation Technologies, Inc. | Active sound attenation system for engine exhaust systems and the like |
US5024288A (en) * | 1989-08-10 | 1991-06-18 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Sound attenuation apparatus |
US5272286A (en) * | 1990-04-09 | 1993-12-21 | Active Noise And Vibration Technologies, Inc. | Single cavity automobile muffler |
US5133017A (en) * | 1990-04-09 | 1992-07-21 | Active Noise And Vibration Technologies, Inc. | Noise suppression system |
EP0542749B1 (fr) * | 1990-04-09 | 1997-12-03 | Noise Cancellation Technologies, Inc. | Amortissement du bruit |
US5319165A (en) * | 1990-04-25 | 1994-06-07 | Ford Motor Company | Dual bandpass secondary source |
US5416845A (en) * | 1993-04-27 | 1995-05-16 | Noise Cancellation Technologies, Inc. | Single and multiple channel block adaptive methods and apparatus for active sound and vibration control |
FI105603B (fi) * | 1997-09-12 | 2000-09-15 | Valtion Teknillinen | Menetelmä ja laitteisto äänen vaimentamiseksi putkessa |
US20020013906A1 (en) * | 2000-06-14 | 2002-01-31 | Walter Wallach | Secure medical test and result delivery system |
DE102004040421A1 (de) * | 2004-08-19 | 2006-03-09 | J. Eberspächer GmbH & Co. KG | Aktiver Abgasschalldämpfer |
DE102008018085A1 (de) | 2008-04-09 | 2009-10-15 | J. Eberspächer GmbH & Co. KG | Aktiver Schalldämpfer |
DE102009049280B4 (de) | 2009-10-13 | 2016-10-06 | Eberspächer Exhaust Technology GmbH & Co. KG | Aktiver Schalldämpfer |
US9025786B2 (en) | 2011-06-01 | 2015-05-05 | Eberspaecher Exhaust Technology Gmbh & Co. Kg | Active noise control system for exhaust systems and method for controlling the same |
DE102011106647A1 (de) | 2011-07-05 | 2013-01-10 | J. Eberspächer GmbH & Co. KG | Antischall-system für abgasanlagen und verfahren zum steuern desselben |
DE102011084567C5 (de) * | 2011-10-14 | 2019-08-14 | Eberspächer Exhaust Technology GmbH & Co. KG | Aktiver Schalldämpfer |
DE102011117495B4 (de) | 2011-11-02 | 2014-08-21 | Eberspächer Exhaust Technology GmbH & Co. KG | Überlastungsschutz für Lautsprecher in Abgasanlagen |
US9386366B2 (en) | 2011-12-02 | 2016-07-05 | Eberspächer Exhaust Technology GmbH & Co. KG | Active design of exhaust sounds |
DE102012201725B4 (de) * | 2012-02-06 | 2016-02-25 | Eberspächer Exhaust Technology GmbH & Co. KG | Aktiver Schalldämpfer |
DE102012109872B4 (de) | 2012-10-16 | 2015-08-27 | Eberspächer Exhaust Technology GmbH & Co. KG | Lautsprecher mit verbesserter thermischer Belastbarkeit |
EP2797075B1 (fr) | 2013-04-26 | 2018-09-12 | Eberspächer Exhaust Technology GmbH & Co. KG | Système permettant d'influencer les bruits d'échappement, les bruits du moteur et/ou les bruits d'admission |
DE102013104307A1 (de) | 2013-04-26 | 2014-10-30 | Eberspächer Exhaust Technology GmbH & Co. KG | System zur Beeinflussung von Abgasgeräuschen und/oder Ansauggeräuschen und/oder Motorgeräuschen |
DE102013104810A1 (de) | 2013-05-08 | 2014-11-13 | Eberspächer Exhaust Technology GmbH & Co. KG | Schallerzeuger für ein antischall-system zur beeinflussung von abgasgeräuschen und/oder ansauggeräuschen eines kraftfahrzeugs |
DE102013010609B4 (de) | 2013-06-25 | 2023-07-27 | Purem GmbH | System zur Beeinflussung von Abgasgeräuschen in einer mehrflutigen Abgasanlage und Kraftfahrzeug |
DE102013011937B3 (de) | 2013-07-17 | 2014-10-09 | Eberspächer Exhaust Technology GmbH & Co. KG | Schallerzeuger für ein Antischall-System zur Beeinflussung von Abgasgeräuschen und/oder Ansauggeräuschen eines Kraftfahrzeugs |
JP2015172370A (ja) | 2014-03-04 | 2015-10-01 | エーバーシュペッヒャー・エグゾースト・テクノロジー・ゲーエムベーハー・ウント・コンパニー・カーゲー | 排気音の能動的設計 |
DE102015119191A1 (de) | 2015-11-06 | 2017-05-11 | Eberspächer Exhaust Technology GmbH & Co. KG | Schallerzeuger zur Befestigung an einem Fahrzeug zur Beeinflussung von Geräuschen des Fahrzeugs |
CN109027501A (zh) * | 2018-06-19 | 2018-12-18 | 东北大学 | 一种工业管道噪声可调式控制结构 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3565209A (en) * | 1968-02-28 | 1971-02-23 | United Aircraft Corp | Method and apparatus for generating an acoustic output from an ionized gas stream |
US3826870A (en) * | 1970-03-20 | 1974-07-30 | Quest Electronics Corp | Noise cancellation |
US3936606A (en) * | 1971-12-07 | 1976-02-03 | Wanke Ronald L | Acoustic abatement method and apparatus |
GB1456018A (en) * | 1972-11-24 | 1976-11-17 | Nat Res Dev | Active control of sound waves |
FR2329929A1 (fr) * | 1975-10-31 | 1977-05-27 | Anvar | Dispositifs absorbeurs acoustiques actifs pour des conduits |
-
1977
- 1977-04-01 FR FR7710497A patent/FR2385972A2/fr active Granted
-
1978
- 1978-03-29 US US05/891,340 patent/US4177874A/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2438796A1 (fr) * | 1978-10-13 | 1980-05-09 | Anvar | Procedes et dispositifs anti-bruit pour accelerer le tirage des conduits d'evacuation de fumees et de gaz ou des conduits d'aeration |
EP0470656A1 (fr) * | 1990-08-10 | 1992-02-12 | General Motors Corporation | Méthode et dispositif d'atténuation du bruit d'un moteur |
DE10021031A1 (de) * | 2000-05-02 | 2001-11-08 | Mann & Hummel Filter | Leitungssystem mit elektromechanischem Wandler zur Erzeugung eines Korrekturgeräusches |
Also Published As
Publication number | Publication date |
---|---|
US4177874A (en) | 1979-12-11 |
FR2385972B2 (fr) | 1981-09-18 |
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