EP1832725A3 - Active silencer for an exhaust system - Google Patents

Active silencer for an exhaust system Download PDF

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Publication number
EP1832725A3
EP1832725A3 EP07102847A EP07102847A EP1832725A3 EP 1832725 A3 EP1832725 A3 EP 1832725A3 EP 07102847 A EP07102847 A EP 07102847A EP 07102847 A EP07102847 A EP 07102847A EP 1832725 A3 EP1832725 A3 EP 1832725A3
Authority
EP
European Patent Office
Prior art keywords
exhaust system
space
partition wall
active silencer
chassis
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
Application number
EP07102847A
Other languages
German (de)
French (fr)
Other versions
EP1832725A2 (en
EP1832725B1 (en
Inventor
Jan Krüger
Frank Castor
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.)
Eberspaecher Climate Control Systems GmbH and Co KG
Original Assignee
J Eberspaecher GmbH and Co KG
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 J Eberspaecher GmbH and Co KG filed Critical J Eberspaecher GmbH and Co KG
Publication of EP1832725A2 publication Critical patent/EP1832725A2/en
Publication of EP1832725A3 publication Critical patent/EP1832725A3/en
Application granted granted Critical
Publication of EP1832725B1 publication Critical patent/EP1832725B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • 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
    • 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
    • G10K2210/3212—Actuator details, e.g. composition or microstructure

Abstract

Die vorliegende Erfindung betrifft einen aktiven Schalldämpfer (1) für eine Abgasanlage (2) einer Brennkraftmaschine, welche einen ersten Raum (3) und einen davon über eine Trennwand (5) getrennten zweiten Raum (4) aufweist. In der Trennwand (5) ist eine Wandöffnung (6) vorgesehen, in welcher ein Chassis (8) und eine Membran (9) aufweisender Antischallerzeuger (7) eingesetzt ist, der im Betrieb den ersten Raum (3) mit Antischall beaufschlagt und dadurch von der Abgasanlage (2) erzeugte Schallemission reduziert. Das Chassis (8) des Antischallerzeugers (7) und die Trennwand (5) sind dabei aus einem Teil hergestellt.

Figure imgaf001
The present invention relates to an active silencer (1) for an exhaust system (2) of an internal combustion engine, which has a first space (3) and a second space (4) separated therefrom by a partition wall (5). In the partition wall (5), a wall opening (6) is provided, in which a chassis (8) and a membrane (9) exhibiting anti-noise generator (7) is used, which in operation the first space (3) subjected to anti-sound and thereby of the exhaust system (2) generated noise emission reduced. The chassis (8) of the anti-sound generator (7) and the partition wall (5) are made of one part.
Figure imgaf001
EP07102847A 2006-03-06 2007-02-22 Active silencer for an exhaust system Expired - Fee Related EP1832725B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006010558A DE102006010558A1 (en) 2006-03-06 2006-03-06 Active silencer for an exhaust system

Publications (3)

Publication Number Publication Date
EP1832725A2 EP1832725A2 (en) 2007-09-12
EP1832725A3 true EP1832725A3 (en) 2009-03-25
EP1832725B1 EP1832725B1 (en) 2011-12-14

Family

ID=38068623

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07102847A Expired - Fee Related EP1832725B1 (en) 2006-03-06 2007-02-22 Active silencer for an exhaust system

Country Status (5)

Country Link
US (1) US20070205043A1 (en)
EP (1) EP1832725B1 (en)
JP (1) JP2007239746A (en)
CN (1) CN101033702B (en)
DE (1) DE102006010558A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008018085A1 (en) * 2008-04-09 2009-10-15 J. Eberspächer GmbH & Co. KG Active muffler
DE102010007013A1 (en) * 2010-02-05 2011-08-11 J. Eberspächer GmbH & Co. KG, 73730 exhaust system
DE102011084567C5 (en) * 2011-10-14 2019-08-14 Eberspächer Exhaust Technology GmbH & Co. KG Active muffler
DE102012201725B4 (en) * 2012-02-06 2016-02-25 Eberspächer Exhaust Technology GmbH & Co. KG Active muffler
DE102014101826B4 (en) * 2014-02-13 2016-08-04 Tenneco Gmbh Sounder system for a motor vehicle
JP2015172370A (en) * 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 active design of exhaust sound
DE102015217461A1 (en) * 2015-09-11 2017-03-16 Eberspächer Exhaust Technology GmbH & Co. KG Connecting pipe for connecting an active silencer to an exhaust system for an internal combustion engine
DE102016107069A1 (en) 2016-04-15 2017-10-19 Faurecia Emissions Control Technologies, Germany Gmbh Sound generating device on a vehicle for reducing or generating engine sound and exhaust system
DE102017129245A1 (en) 2017-12-08 2019-06-13 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Air intake device for a cooling device of an electric vehicle

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4317403A1 (en) * 1993-05-26 1994-12-01 Nokia Deutschland Gmbh Arrangement for active sound damping
US5693918A (en) * 1994-09-06 1997-12-02 Digisonix, Inc. Active exhaust silencer
EP0939577A2 (en) * 1998-02-27 1999-09-01 Tenneco Automotive Inc. Loudspeaker pressure plate

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2607390C2 (en) * 1976-02-24 1982-09-23 Braun Ag, 6000 Frankfurt Dynamic loudspeaker with a high load capacity
ZA825676B (en) * 1981-08-11 1983-06-29 Sound Attenuators Ltd Method and apparatus for low frequency active attennuation
US5097923A (en) * 1988-02-19 1992-03-24 Noise Cancellation Technologies, Inc. Active sound attenation system for engine exhaust systems and the like
US5457749A (en) * 1990-04-09 1995-10-10 Noise Cancellation Technologies, Inc. Electronic muffler
US5233137A (en) * 1990-04-25 1993-08-03 Ford Motor Company Protective anc loudspeaker membrane
US5229556A (en) * 1990-04-25 1993-07-20 Ford Motor Company Internal ported band pass enclosure for sound cancellation
US5619020A (en) * 1991-08-29 1997-04-08 Noise Cancellation Technologies, Inc. Muffler
US5550334A (en) * 1991-10-30 1996-08-27 Noise Cancellation Technologies, Inc. Actively sound reduced muffler having a venturi effect configuration
US5336856A (en) * 1992-07-07 1994-08-09 Arvin Industries, Inc. Electronic muffler assembly with exhaust bypass
US5748749A (en) * 1993-03-24 1998-05-05 Noise Cancellation Technologies, Inc. Active noise cancelling muffler
CZ284565B6 (en) * 1993-07-07 1999-01-13 Leistritz Ag & Co Abgastechnik Active sound silencer
US5446249A (en) * 1993-07-13 1995-08-29 Digisonix, Inc. Dry acoustic system preventing condensation
JP2587683Y2 (en) * 1993-08-12 1998-12-24 カルソニック株式会社 Active silencer
DE4342133A1 (en) * 1993-12-10 1995-06-14 Nokia Deutschland Gmbh Arrangement for active noise reduction
US6160892A (en) * 1993-12-30 2000-12-12 Bbn Corporation Active muffler
IT1267402B1 (en) * 1994-02-22 1997-02-05 Electronic Sound Attenuation S ACTIVE SILENCER FOR EXHAUST GAS.
US5541373A (en) * 1994-09-06 1996-07-30 Digisonix, Inc. Active exhaust silencer
US6385321B1 (en) * 1996-05-14 2002-05-07 Fraunhofer-Gesellschaft Reactive sound absorber
JPH117287A (en) * 1997-04-24 1999-01-12 Shinko Electric Co Ltd Muffler
DE19861018C2 (en) * 1998-12-15 2001-06-13 Fraunhofer Ges Forschung Controlled acoustic waveguide for sound absorption
US6758304B1 (en) * 1999-09-16 2004-07-06 Siemens Vdo Automotive Inc. Tuned Helmholtz resonator using cavity forcing
US6898289B2 (en) * 2000-09-20 2005-05-24 Siemens Vdo Automotive Inc. Integrated active noise attenuation system and fluid reservoir
US7006639B2 (en) * 2001-11-20 2006-02-28 Maximilian Hans Hobelsberger Active noise-attenuating duct element
US20030178248A1 (en) * 2002-03-22 2003-09-25 Siemens Vdo Automotive, Inc. Combined active noise control and resonator
DE102004040421A1 (en) * 2004-08-19 2006-03-09 J. Eberspächer GmbH & Co. KG Active exhaust silencer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4317403A1 (en) * 1993-05-26 1994-12-01 Nokia Deutschland Gmbh Arrangement for active sound damping
US5693918A (en) * 1994-09-06 1997-12-02 Digisonix, Inc. Active exhaust silencer
EP0939577A2 (en) * 1998-02-27 1999-09-01 Tenneco Automotive Inc. Loudspeaker pressure plate

Also Published As

Publication number Publication date
DE102006010558A1 (en) 2007-09-13
EP1832725A2 (en) 2007-09-12
CN101033702A (en) 2007-09-12
EP1832725B1 (en) 2011-12-14
CN101033702B (en) 2013-02-27
US20070205043A1 (en) 2007-09-06
JP2007239746A (en) 2007-09-20

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