EP0674097A1 - Aktiver Abgasschalldämpfer - Google Patents

Aktiver Abgasschalldämpfer Download PDF

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Publication number
EP0674097A1
EP0674097A1 EP95102257A EP95102257A EP0674097A1 EP 0674097 A1 EP0674097 A1 EP 0674097A1 EP 95102257 A EP95102257 A EP 95102257A EP 95102257 A EP95102257 A EP 95102257A EP 0674097 A1 EP0674097 A1 EP 0674097A1
Authority
EP
European Patent Office
Prior art keywords
muffler
chamber
opening
casing
transducer
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.)
Withdrawn
Application number
EP95102257A
Other languages
English (en)
French (fr)
Inventor
Andrea Renzullo
Riccardo Mazzucchelli
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.)
ELECTRONIC SOUND ATTENUATION SpA
Original Assignee
ELECTRONIC SOUND ATTENUATION SpA
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 ELECTRONIC SOUND ATTENUATION SpA filed Critical ELECTRONIC SOUND ATTENUATION SpA
Publication of EP0674097A1 publication Critical patent/EP0674097A1/de
Withdrawn legal-status Critical Current

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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
    • G10K11/1785—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
    • G10K11/1785—Methods, e.g. algorithms; Devices
    • G10K11/17861—Methods, e.g. algorithms; Devices using additional means for damping sound, e.g. using sound absorbing panels
    • 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
    • G10K11/17883—General system configurations using both a reference signal and an error signal the reference signal being derived from a machine operating condition, e.g. engine RPM or vehicle speed
    • 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
    • G10K2210/121—Rotating machines, e.g. engines, turbines, motors; Periodic or quasi-periodic signals in general
    • 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
    • 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
    • G10K2210/3214—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
    • G10K2210/3227—Resonators
    • G10K2210/32271—Active resonators

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)
  • Exhaust Silencers (AREA)
EP95102257A 1994-02-22 1995-02-17 Aktiver Abgasschalldämpfer Withdrawn EP0674097A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT94TO000109A IT1267402B1 (it) 1994-02-22 1994-02-22 Silenziatore attivo per gas di scarico.
ITTO940109 1994-02-22

Publications (1)

Publication Number Publication Date
EP0674097A1 true EP0674097A1 (de) 1995-09-27

Family

ID=11412178

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95102257A Withdrawn EP0674097A1 (de) 1994-02-22 1995-02-17 Aktiver Abgasschalldämpfer

Country Status (2)

Country Link
EP (1) EP0674097A1 (de)
IT (1) IT1267402B1 (de)

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0939393A2 (de) * 1998-02-27 1999-09-01 Tenneco Automotive Inc. Modularer Schalldämpfer mit Auslassöffnungdeflektor
FR2812442A1 (fr) * 2000-07-31 2002-02-01 Ecia Equip Composants Ind Auto Dispositif d'attenuation active des ondes sonores produites par une ligne d'echappement
EP1241660A2 (de) * 2001-03-15 2002-09-18 Siemens VDO Automotive Inc. Gegen Umwelteinflüsse geschütztes Mikrophon für ein aktives Geräuschdämpfungssystem
DE102006010558A1 (de) * 2006-03-06 2007-09-13 J. Eberspächer GmbH & Co. KG Aktiver Schalldämpfer für eine Abgasanlage
US7293627B2 (en) 2004-08-19 2007-11-13 J. Eberspeecher Gmnh Active exhaust muffler
DE102006042224B3 (de) * 2006-09-06 2008-01-17 J. Eberspächer GmbH & Co. KG Aktiver Schalldämpfer für eine Abgasanlage
EP2108791A1 (de) 2008-04-09 2009-10-14 J. Eberspächer GmbH & Co. KG Aktiver Schalldämpfer
EP2105587A3 (de) * 2008-03-27 2009-10-21 J. Eberspächer GmbH Co. KG Abgasanlage
DE102009031848A1 (de) * 2009-07-03 2011-01-05 J. Eberspächer GmbH & Co. KG Abgasanlage mit aktivem Schalldämpfer
EP2287451A1 (de) * 2009-07-10 2011-02-23 J. Eberspächer GmbH & Co. KG Abgasanlage und zugehörige Verbindungsanordnung für einen Aktuator
DE102009049280A1 (de) 2009-10-13 2011-04-14 J. Eberspächer GmbH & Co. KG Aktiver Schalldämpfer
US20120097478A1 (en) * 2010-10-20 2012-04-26 J. Eberspaecher Gmbh & Co. Kg Muffler
EP2530263A1 (de) 2011-06-01 2012-12-05 J. Eberspächer GmbH & Co. KG Antischall-System für Abgasanlagen und Verfahren zum Steuern desselben
EP2543835A1 (de) 2011-07-05 2013-01-09 J. Eberspächer GmbH & Co. KG Antischall-System für Abgasanlagen und Verfahren zum Steuern desselben
DE102011117495A1 (de) 2011-11-02 2013-05-02 J. Eberspächer GmbH & Co. KG Überlastungsschutz für Lautsprecher in Abgasanlagen
EP2600342A2 (de) 2011-12-02 2013-06-05 J. Eberspächer GmbH & Co. KG Aktive Gestaltung von Abgasgeräuschen
CN103174499A (zh) * 2011-12-23 2013-06-26 J·埃贝斯佩歇合资公司 排气系统
CN103266933A (zh) * 2012-02-06 2013-08-28 J·埃贝斯佩歇合资公司 有源消声器
DE102012109872A1 (de) 2012-10-16 2014-04-17 Eberspächer Exhaust Technology GmbH & Co. KG Lautsprecher mit verbesserter thermischer Belastbarkeit
US8708095B2 (en) 2011-12-23 2014-04-29 Eberspächer Exhaust Technology GmbH & Co. KG Exhaust system
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
EP2797075A2 (de) 2013-04-26 2014-10-29 Eberspächer Exhaust Technology GmbH & Co. KG System zur Beeinflussung von Abgasgeräuschen, Motorgeräuschen und/oder Ansauggeräuschen
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
EP2801708A1 (de) 2013-05-08 2014-11-12 Eberspächer Exhaust Technology GmbH & Co. KG Schallerzeuger für ein Antischall-System zur Beeinflussung von Abgasgeräuschen und/oder Ansauggeräuschen eines Kraftfahrzeugs
EP2818654A1 (de) 2013-06-25 2014-12-31 Eberspächer Exhaust Technology GmbH & Co. KG System zur Beeinflussung von Abgasgeräuschen in einer mehrflutigen Abgasanlage
CN104420960A (zh) * 2013-08-20 2015-03-18 现代自动车株式会社 用于防止对有源噪声控制扬声器造成热损伤的结构
CN104895648A (zh) * 2014-03-04 2015-09-09 埃贝施佩歇尔排气技术有限及两合公司 排气噪音的有源设计
EP3165729A1 (de) 2015-11-06 2017-05-10 Eberspächer Exhaust Technology GmbH & Co. KG Schallerzeuger zur befestigung an einem fahrzeug zur beeinflussung von geräuschen des fahrzeugs
DE102017129245A1 (de) * 2017-12-08 2019-06-13 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Lufteinlassvorrichtung für eine Kühlvorrichtung eines Elektrofahrzeugs
EP3156999B1 (de) * 2015-10-16 2022-03-23 Harman Becker Automotive Systems GmbH Motorgeraeuschsteuerung
CN114396523A (zh) * 2022-02-24 2022-04-26 中国人民解放军海军工程大学 一种用于充液管路的消声器

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991015666A1 (en) * 1990-04-09 1991-10-17 Active Noise And Vibration Technologies, Inc. Single cavity automobile muffler
JPH051811A (ja) * 1991-01-23 1993-01-08 Mitsubishi Electric Corp 排煙管の騒音打消し装置
WO1993005282A1 (en) * 1991-08-29 1993-03-18 Active Noise And Vibration Technologies Inc. Muffler
WO1993009334A1 (en) * 1991-10-30 1993-05-13 Noise Cancellation Technologies, Inc. Actively sound reduced muffler having a venturi effect configuration
JPH05257483A (ja) * 1992-03-16 1993-10-08 Nkk Corp 能動的消音装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991015666A1 (en) * 1990-04-09 1991-10-17 Active Noise And Vibration Technologies, Inc. Single cavity automobile muffler
JPH051811A (ja) * 1991-01-23 1993-01-08 Mitsubishi Electric Corp 排煙管の騒音打消し装置
WO1993005282A1 (en) * 1991-08-29 1993-03-18 Active Noise And Vibration Technologies Inc. Muffler
WO1993009334A1 (en) * 1991-10-30 1993-05-13 Noise Cancellation Technologies, Inc. Actively sound reduced muffler having a venturi effect configuration
JPH05257483A (ja) * 1992-03-16 1993-10-08 Nkk Corp 能動的消音装置

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 17, no. 263 (M - 1415) 24 May 1993 (1993-05-24) *
PATENT ABSTRACTS OF JAPAN vol. 18, no. 21 (P - 1674) 13 January 1994 (1994-01-13) *

Cited By (73)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0939393A2 (de) * 1998-02-27 1999-09-01 Tenneco Automotive Inc. Modularer Schalldämpfer mit Auslassöffnungdeflektor
EP0939393A3 (de) * 1998-02-27 2000-12-06 Tenneco Automotive Inc. Modularer Schalldämpfer mit Auslassöffnungdeflektor
FR2812442A1 (fr) * 2000-07-31 2002-02-01 Ecia Equip Composants Ind Auto Dispositif d'attenuation active des ondes sonores produites par une ligne d'echappement
WO2002010560A1 (fr) * 2000-07-31 2002-02-07 Faurecia Systemes D'echappement Dispositif d'attenuation active des ondes sonores produites par une ligne d'echappement
US6702061B2 (en) 2001-03-15 2004-03-09 Siemens Vdo Automotive, Inc. Environmentally protected microphone for an active noise control system
EP1241660A3 (de) * 2001-03-15 2003-07-23 Siemens VDO Automotive Inc. Gegen Umwelteinflüsse geschütztes Mikrophon für ein aktives Geräuschdämpfungssystem
EP1241660A2 (de) * 2001-03-15 2002-09-18 Siemens VDO Automotive Inc. Gegen Umwelteinflüsse geschütztes Mikrophon für ein aktives Geräuschdämpfungssystem
US7293627B2 (en) 2004-08-19 2007-11-13 J. Eberspeecher Gmnh Active exhaust muffler
DE102006010558A1 (de) * 2006-03-06 2007-09-13 J. Eberspächer GmbH & Co. KG Aktiver Schalldämpfer für eine Abgasanlage
DE102006042224B3 (de) * 2006-09-06 2008-01-17 J. Eberspächer GmbH & Co. KG Aktiver Schalldämpfer für eine Abgasanlage
EP1898059A3 (de) * 2006-09-06 2009-04-22 J. Eberspächer GmbH & Co. KG Aktiver Schalldämpfer für eine Abgasanlage
US7533759B2 (en) 2006-09-06 2009-05-19 J. Eberspaecher Gmbh & Co. Kg Active muffler for an exhaust system
EP2105587A3 (de) * 2008-03-27 2009-10-21 J. Eberspächer GmbH Co. KG Abgasanlage
EP2108791A1 (de) 2008-04-09 2009-10-14 J. Eberspächer GmbH & Co. KG Aktiver Schalldämpfer
DE102008018085A1 (de) 2008-04-09 2009-10-15 J. Eberspächer GmbH & Co. KG Aktiver Schalldämpfer
US7891463B2 (en) 2008-04-09 2011-02-22 J. Eberspaecher Gmbh & Co. Kg Active muffler
CN101555818B (zh) * 2008-04-09 2011-08-31 J·埃贝斯佩歇合资公司 有源消声器
DE102009031848A1 (de) * 2009-07-03 2011-01-05 J. Eberspächer GmbH & Co. KG Abgasanlage mit aktivem Schalldämpfer
US8360192B2 (en) 2009-07-03 2013-01-29 J. Eberspächer GmbH & Co. KG Exhaust system with active exhaust muffler
EP2287451A1 (de) * 2009-07-10 2011-02-23 J. Eberspächer GmbH & Co. KG Abgasanlage und zugehörige Verbindungsanordnung für einen Aktuator
DE102009049280A1 (de) 2009-10-13 2011-04-14 J. Eberspächer GmbH & Co. KG Aktiver Schalldämpfer
US20120097478A1 (en) * 2010-10-20 2012-04-26 J. Eberspaecher Gmbh & Co. Kg Muffler
US8434590B2 (en) * 2010-10-20 2013-05-07 J. Eberspaecher Gmbh & Co., Kg Muffler
EP2530263A1 (de) 2011-06-01 2012-12-05 J. Eberspächer GmbH & Co. KG Antischall-System für Abgasanlagen und Verfahren zum Steuern desselben
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
DE202012012724U1 (de) 2011-06-01 2013-09-11 Eberspächer Exhaust Technology GmbH & Co. KG Antischall-System für Abgasanlagen
EP2543835A1 (de) 2011-07-05 2013-01-09 J. Eberspächer GmbH & Co. KG Antischall-System für Abgasanlagen und Verfahren zum Steuern desselben
US8930071B2 (en) 2011-07-05 2015-01-06 Eberspaecher Exhaust Technology Gmbh & Co. Kg Anti-sound 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
CN103114890A (zh) * 2011-11-02 2013-05-22 J·埃贝施佩歇尔有限及两合公司 排气系统中的扬声器过载保护
CN103114890B (zh) * 2011-11-02 2015-06-03 埃贝施佩歇尔排气技术有限及两合公司 排气系统中的扬声器过载保护
US9084039B2 (en) 2011-11-02 2015-07-14 Eberspächer Exhaust Technology GmbH & Co. Overload protection for loudspeakers in exhaust systems
DE102011117495A1 (de) 2011-11-02 2013-05-02 J. Eberspächer GmbH & Co. KG Überlastungsschutz für Lautsprecher in Abgasanlagen
EP2590163A2 (de) 2011-11-02 2013-05-08 J. Eberspächer 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
EP2600342A2 (de) 2011-12-02 2013-06-05 J. Eberspächer GmbH & Co. KG Aktive Gestaltung von Abgasgeräuschen
DE102012023643A1 (de) 2011-12-02 2013-06-06 J. Eberspächer GmbH & Co. KG Aktive Gestaltung von Abgasgeräuschen
DE102011089774B4 (de) * 2011-12-23 2014-03-27 Eberspächer Exhaust Technology GmbH & Co. KG Abgasanlage
US8708095B2 (en) 2011-12-23 2014-04-29 Eberspächer Exhaust Technology GmbH & Co. KG Exhaust system
US8708094B2 (en) 2011-12-23 2014-04-29 Eberspächer Exhaust Technology GmbH & Co. KG Exhaust system
CN103174499B (zh) * 2011-12-23 2015-10-28 埃贝斯佩歇废气技术合资公司 排气系统
DE102011089774A1 (de) * 2011-12-23 2013-06-27 J. Eberspächer GmbH & Co. KG Abgasanlage
CN103174499A (zh) * 2011-12-23 2013-06-26 J·埃贝斯佩歇合资公司 排气系统
CN103266933B (zh) * 2012-02-06 2016-03-23 埃贝斯佩歇废气技术合资公司 有源消声器
CN103266933A (zh) * 2012-02-06 2013-08-28 J·埃贝斯佩歇合资公司 有源消声器
DE102012109872A1 (de) 2012-10-16 2014-04-17 Eberspächer Exhaust Technology GmbH & Co. KG Lautsprecher mit verbesserter thermischer Belastbarkeit
US9591387B2 (en) 2012-10-16 2017-03-07 Eberspaecher Exhaust Technology Gmbh & Co. Kg Loudspeaker with improved thermal load capacity
EP2723099A1 (de) 2012-10-16 2014-04-23 Eberspächer Exhaust Technology GmbH & Co. KG Lautsprecher mit verbesserter thermischer Belastbarkeit
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
EP2797075A2 (de) 2013-04-26 2014-10-29 Eberspächer Exhaust Technology GmbH & Co. KG System zur Beeinflussung von Abgasgeräuschen, Motorgeräuschen und/oder Ansauggeräuschen
US9374632B2 (en) 2013-05-08 2016-06-21 Eberspächer Exhaust Technology GmbH & Co. KG Sound generator for an anti-noise system for influencing exhaust noises and/or intake noises of a motor vehicle
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
EP2801708A1 (de) 2013-05-08 2014-11-12 Eberspächer Exhaust Technology GmbH & Co. KG Schallerzeuger für ein Antischall-System zur Beeinflussung von Abgasgeräuschen und/oder Ansauggeräuschen eines Kraftfahrzeugs
DE102013010609A1 (de) 2013-06-25 2015-01-08 Eberspächer Exhaust Technology GmbH & Co. KG System zur Beeinflussung von Abgasgeräuschen in einer mehrflutigen Abgasanlage
DE102013010609B4 (de) 2013-06-25 2023-07-27 Purem GmbH System zur Beeinflussung von Abgasgeräuschen in einer mehrflutigen Abgasanlage und Kraftfahrzeug
US9706295B2 (en) 2013-06-25 2017-07-11 Eberspächer Exhaust Technology GmbH & Co. KG System for influencing exhaust noise in a multi-flow exhaust system
EP2818654A1 (de) 2013-06-25 2014-12-31 Eberspächer Exhaust Technology GmbH & Co. KG System zur Beeinflussung von Abgasgeräuschen in einer mehrflutigen Abgasanlage
US9066168B2 (en) 2013-07-17 2015-06-23 Eberspächer Exhaust Technology GmbH & Co. KG Sound generator for an anti-noise system for influencing exhaust noise and/or intake noise of a motor vehicle
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
EP2826966A1 (de) 2013-07-17 2015-01-21 Eberspächer Exhaust Technology GmbH & Co. KG Schallerzeuger für ein Antischall-System zur Beeinflussung von Abgasgeräuschen und/oder Ansauggeräuschen eines Kraftfahrzeugs
CN104420960A (zh) * 2013-08-20 2015-03-18 现代自动车株式会社 用于防止对有源噪声控制扬声器造成热损伤的结构
CN104895648B (zh) * 2014-03-04 2018-11-27 埃贝施佩歇尔排气技术有限及两合公司 排气噪音的有源设计
EP2915967A1 (de) 2014-03-04 2015-09-09 Eberspächer Exhaust Technology GmbH & Co. KG Aktives Design von Auspuffgeräuschen
CN104895648A (zh) * 2014-03-04 2015-09-09 埃贝施佩歇尔排气技术有限及两合公司 排气噪音的有源设计
US9728176B2 (en) 2014-03-04 2017-08-08 Eberspächer Exhaust Technology GmbH & Co. KG Active design of exhaust sounds
EP3156999B1 (de) * 2015-10-16 2022-03-23 Harman Becker Automotive Systems GmbH Motorgeraeuschsteuerung
EP3165729A1 (de) 2015-11-06 2017-05-10 Eberspächer Exhaust Technology GmbH & Co. KG Schallerzeuger zur befestigung an einem fahrzeug zur beeinflussung von geräuschen des fahrzeugs
US9997152B2 (en) 2015-11-06 2018-06-12 Eberspächer Exhaust Technology GmbH & Co. KG Sound generator for mounting on a vehicle to manipulate vehicle noise
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
DE102017129245A1 (de) * 2017-12-08 2019-06-13 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Lufteinlassvorrichtung für eine Kühlvorrichtung eines Elektrofahrzeugs
US10576885B2 (en) 2017-12-08 2020-03-03 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Air inlet device for a cooling device of an electric vehicle
CN114396523A (zh) * 2022-02-24 2022-04-26 中国人民解放军海军工程大学 一种用于充液管路的消声器
CN114396523B (zh) * 2022-02-24 2024-05-03 中国人民解放军海军工程大学 一种用于充液管路的主被动复合消声器

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