IT1267402B1 - Silenziatore attivo per gas di scarico. - Google Patents

Silenziatore attivo per gas di scarico.

Info

Publication number
IT1267402B1
IT1267402B1 IT94TO000109A ITTO940109A IT1267402B1 IT 1267402 B1 IT1267402 B1 IT 1267402B1 IT 94TO000109 A IT94TO000109 A IT 94TO000109A IT TO940109 A ITTO940109 A IT TO940109A IT 1267402 B1 IT1267402 B1 IT 1267402B1
Authority
IT
Italy
Prior art keywords
exhaust gas
active silencer
silencer
active
exhaust
Prior art date
Application number
IT94TO000109A
Other languages
English (en)
Inventor
Andrea Renzullo
Riccardo Mazzucchelli
Original Assignee
Electronic Sound Attenuation S
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 S filed Critical Electronic Sound Attenuation S
Priority to IT94TO000109A priority Critical patent/IT1267402B1/it
Publication of ITTO940109A0 publication Critical patent/ITTO940109A0/it
Priority to EP95102257A priority patent/EP0674097A1/en
Publication of ITTO940109A1 publication Critical patent/ITTO940109A1/it
Application granted granted Critical
Publication of IT1267402B1 publication Critical patent/IT1267402B1/it

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
    • G10K11/1785—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
IT94TO000109A 1994-02-22 1994-02-22 Silenziatore attivo per gas di scarico. IT1267402B1 (it)

Priority Applications (2)

Application Number Priority Date Filing Date Title
IT94TO000109A IT1267402B1 (it) 1994-02-22 1994-02-22 Silenziatore attivo per gas di scarico.
EP95102257A EP0674097A1 (en) 1994-02-22 1995-02-17 Active exhaust gas muffler

Applications Claiming Priority (1)

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

Publications (3)

Publication Number Publication Date
ITTO940109A0 ITTO940109A0 (it) 1994-02-22
ITTO940109A1 ITTO940109A1 (it) 1995-08-22
IT1267402B1 true IT1267402B1 (it) 1997-02-05

Family

ID=11412178

Family Applications (1)

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

Country Status (2)

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

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6072880A (en) * 1998-02-27 2000-06-06 Tenneco Automotive Inc. Modular active silencer with port dish
FR2812442B1 (fr) * 2000-07-31 2003-01-24 Ecia Equip Composants Ind Auto 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
DE102004040421A1 (de) 2004-08-19 2006-03-09 J. Eberspächer GmbH & Co. KG Aktiver Abgasschalldämpfer
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
DE102008015929A1 (de) * 2008-03-27 2009-10-01 J. Eberspächer GmbH & Co. KG Abgasanlage
DE102008018085A1 (de) 2008-04-09 2009-10-15 J. Eberspächer GmbH & Co. KG Aktiver Schalldämpfer
DE102009031848A1 (de) 2009-07-03 2011-01-05 J. Eberspächer GmbH & Co. KG Abgasanlage mit aktivem Schalldämpfer
DE102009032553A1 (de) * 2009-07-10 2011-01-20 J. Eberspächer GmbH & Co. KG Abgasanlage und zugehörige Verbindungsanordnung für einen Aktuator
DE102009049280B4 (de) 2009-10-13 2016-10-06 Eberspächer Exhaust Technology GmbH & Co. KG Aktiver Schalldämpfer
DE102010042679A1 (de) * 2010-10-20 2012-04-26 J. Eberspächer GmbH & Co. KG 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
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
DE102011089772B4 (de) 2011-12-23 2016-09-29 Eberspächer Exhaust Technology GmbH & Co. KG Abgasanlage
DE102011089774B4 (de) * 2011-12-23 2014-03-27 Eberspächer Exhaust Technology GmbH & Co. KG Abgasanlage
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
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
EP2797075B1 (de) 2013-04-26 2018-09-12 Eberspächer Exhaust Technology GmbH & Co. KG System zur Beeinflussung von Abgasgeräuschen, Motorgeräuschen und/oder Ansauggeräuschen
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
KR101488324B1 (ko) * 2013-08-20 2015-01-30 현대자동차주식회사 능동소음제어 스피커의 열해방지 구조
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
EP3156999B1 (en) * 2015-10-16 2022-03-23 Harman Becker Automotive Systems GmbH Engine noise control
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

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0542749B1 (en) * 1990-04-09 1997-12-03 Noise Cancellation Technologies, Inc. Noise cancellation apparatus
JPH051811A (ja) * 1991-01-23 1993-01-08 Mitsubishi Electric Corp 排煙管の騒音打消し装置
GB9118779D0 (en) * 1991-08-29 1991-10-16 Active Noise & Vibration Tech Muffler
WO1993009334A1 (en) * 1991-10-30 1993-05-13 Noise Cancellation Technologies, Inc. Actively sound reduced muffler having a venturi effect configuration
JP2903841B2 (ja) * 1992-03-16 1999-06-14 日本鋼管株式会社 能動的消音装置

Also Published As

Publication number Publication date
EP0674097A1 (en) 1995-09-27
ITTO940109A0 (it) 1994-02-22
ITTO940109A1 (it) 1995-08-22

Similar Documents

Publication Publication Date Title
IT1267402B1 (it) Silenziatore attivo per gas di scarico.
TR199800611A3 (tr) Egzost gazi katalizatörü.
DE19581467T1 (de) Katalytisches Schalldämpfersystem
DE69701649D1 (de) Abgasreiniger
DE50001427D1 (de) Aktiver Abgasschalldämpfer
DK0734754T3 (da) Forbrændingsgasbehandlingsanlæg
ITTO960032A0 (it) Valvola per il ricircolo di gas di scarico.
DE29708011U1 (de) Abgasrückkühler
DE69801257T2 (de) Abgasreiniger
DE69502868D1 (de) Abgasreiniger
GB2343716B (en) An exhaust silencer
IT1315848B1 (it) Silenziatore di scarico.
IT8941676A0 (it) Struttura di marmitta di scarico catalitica per motori.
ITTO940732A0 (it) Silenziatore attivo per gas di scarico.
FI101736B1 (fi) Pakokaasukattila
AU5553098A (en) Active exhaust silencer
IT1298111B1 (it) Valvola di riflusso per gas di scarico
DE9307567U1 (de) Abgasschalldämpfer
IT1283867B1 (it) Silenziatore di scarico
ITTO981066A0 (it) Marmitta di scarico per motocicli e simili.
IT1308442B1 (it) Dispositivo per depurare gas di scarico
ITPG940004A0 (it) Apparecchio nebulizzatore per abbattimento gas di scarico.
DE29722120U1 (de) Abgas-Schalldämpfer
DE69500504D1 (de) Abgasrückführungssystem
KR960019075U (ko) 고정챔버 배기 시스템

Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19990224