EP1826369A3 - Silencer for an exhaust system - Google Patents

Silencer for an exhaust system Download PDF

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Publication number
EP1826369A3
EP1826369A3 EP20070102348 EP07102348A EP1826369A3 EP 1826369 A3 EP1826369 A3 EP 1826369A3 EP 20070102348 EP20070102348 EP 20070102348 EP 07102348 A EP07102348 A EP 07102348A EP 1826369 A3 EP1826369 A3 EP 1826369A3
Authority
EP
European Patent Office
Prior art keywords
tube
silencer
exhaust system
housing
absorbs
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
EP20070102348
Other languages
German (de)
French (fr)
Other versions
EP1826369A2 (en
EP1826369B1 (en
Inventor
Sascha Leng
Marco Jess
Sebastian Hutschenreuther
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 Exhaust Technology 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 EP1826369A2 publication Critical patent/EP1826369A2/en
Publication of EP1826369A3 publication Critical patent/EP1826369A3/en
Application granted granted Critical
Publication of EP1826369B1 publication Critical patent/EP1826369B1/en
Active 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
    • F01N1/02—Silencing apparatus characterised by method of silencing by using resonance
    • F01N1/04—Silencing apparatus characterised by method of silencing by using resonance having sound-absorbing materials in resonance chambers
    • 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
    • F01N1/003—Silencing apparatus characterised by method of silencing by using dead chambers communicating with gas flow passages
    • 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
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/02—Tubes being perforated

Abstract

Die vorliegende Erfindung betrifft einen Schalldämpfer (1) für eine Abgasanlage (4) einer Brennkraftmaschine, insbesondere in einem Kraftfahrzeug, umfassend ein Gehäuse (2), das wenigstens eine Absorptionskammer (8) enthält, die mit einem für Luftschall absorbierend wirkenden Absorptionsmaterial (9) gefüllt ist, ein im Betrieb des Schalldämpfers (1) abgasführenden Durchgangsrohr (3), das durch das Gehäuse (2) hindurchgeführt ist, und wenigstens ein Blindrohr (10), das einenends seitlich an das Durchgangsrohr (3) angeschlossen ist und anderenends verschlossen ist. Das Blindrohr (10) weist in einem in der Absorptionskammer (8) verlaufenden Bereich eine für Luftschall durchlässige Wandung (13) auf.

Figure imgaf001
The present invention relates to a silencer (1) for an exhaust system (4) of an internal combustion engine, in particular in a motor vehicle, comprising a housing (2) which contains at least one absorption chamber (8) which absorbs an absorbent material (9) which absorbs airborne sound. is filled, a in the operation of the muffler (1) exhaust-carrying passage tube (3), which is passed through the housing (2), and at least one dummy tube (10) which is connected at one end laterally to the passage tube (3) and the other end is closed , The blind tube (10) has a wall (13) permeable to airborne sound in a region extending in the absorption chamber (8).
Figure imgaf001
EP07102348.5A 2006-02-23 2007-02-14 Silencer for an exhaust system Active EP1826369B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006008941A DE102006008941A1 (en) 2006-02-23 2006-02-23 Silencer for an exhaust system

Publications (3)

Publication Number Publication Date
EP1826369A2 EP1826369A2 (en) 2007-08-29
EP1826369A3 true EP1826369A3 (en) 2009-03-18
EP1826369B1 EP1826369B1 (en) 2016-05-18

Family

ID=38008180

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07102348.5A Active EP1826369B1 (en) 2006-02-23 2007-02-14 Silencer for an exhaust system

Country Status (5)

Country Link
US (1) US7527125B2 (en)
EP (1) EP1826369B1 (en)
JP (1) JP5221883B2 (en)
CN (1) CN101025103B (en)
DE (1) DE102006008941A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160069021A1 (en) * 2012-06-01 2016-03-10 Dieffenbacher GmbH Maschinen-und Anlagenbau Bend for introducing a steam-and-fibers stream into a dryer or a pulp chest of a fibers-processing plant, blow line with a bend, and fibers-processing plant with a blow line
KR20140080644A (en) * 2012-12-12 2014-07-01 기아자동차주식회사 Dual muffler
DE102018112963A1 (en) 2018-05-30 2019-12-05 Faurecia Emissions Control Technologies, Germany Gmbh Silencer for an exhaust system of an internal combustion engine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0077148A1 (en) * 1981-09-29 1983-04-20 Nissan Motor Co., Ltd. Improved exhaust system for automotive vehicle or the like
US4501341A (en) * 1981-03-12 1985-02-26 Jones Adrian D Low frequency muffler
DE3836589A1 (en) * 1988-10-27 1990-05-03 Eberspaecher J Compact silencer for commercial vehicles
DE10132164A1 (en) * 2000-07-06 2002-01-17 Boysen Friedrich Gmbh Co Kg Silencer for an internal combustion engine

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB403651A (en) * 1931-06-20 1933-12-20 Burgess Lab Inc C F Silencer for gaseous currents
US1954516A (en) * 1931-10-19 1934-04-10 Maxim Silencer Co Sound attenuating device
DE626889C (en) * 1932-12-18 1937-12-27 Ulrich Schmidt Dr Ing Silencer for the exhaust of internal combustion engines
US2103810A (en) * 1935-04-16 1937-12-28 Caspar Eduard Silencer for the exhaust gases of internal combustion engines
US2297046A (en) * 1939-08-25 1942-09-29 Maxim Silencer Co Means for preventing shock excitation of acoustic conduits or chambers
US3402785A (en) * 1965-10-23 1968-09-24 Walker Mfg Co Muffler with resonance chambers for high and low frequencies
US3396812A (en) * 1967-07-05 1968-08-13 Arvin Ind Inc Acoustic quarter wave tube
US3434565A (en) * 1967-12-21 1969-03-25 Walker Mfg Co Silencer with angled tuning tube leading to helmholtz resonator
US3776364A (en) * 1972-04-28 1973-12-04 Donaldson Co Inc Noise reduction apparatus and method
JPS5713373Y2 (en) * 1977-05-26 1982-03-17
JPS59514A (en) * 1982-06-23 1984-01-05 Sango:Kk Muffler of exhaust system in internal-combustion engine
JPS5941618A (en) * 1982-08-31 1984-03-07 Nissan Motor Co Ltd Exhaust noise suppressor of automobile engine
JPS63285213A (en) * 1987-05-18 1988-11-22 Nissan Motor Co Ltd Muffling device
US4841728A (en) * 1987-07-10 1989-06-27 Jyh-Jian Jean Straight through type muffler for generating the exhaust flow from an internal combustion engine
JPH07101002B2 (en) * 1987-12-22 1995-11-01 日産自動車株式会社 Resonance silencer
US4821840A (en) * 1988-01-20 1989-04-18 Ap Parts Manufacturing Company Stamp formed exhaust muffler with conformal outer shell
DE3807948A1 (en) * 1988-03-10 1989-09-28 Eberspaecher J Silencer for vehicle engines
JP2559477B2 (en) * 1988-10-05 1996-12-04 日産自動車株式会社 Exhaust silencer
JPH078516U (en) * 1993-06-25 1995-02-07 三恵工業株式会社 Resonant submuffler
DE50110583D1 (en) * 2000-04-14 2006-09-14 Eberspaecher J Gmbh & Co Exhaust silencer in multi-chamber design
DE10300773A1 (en) * 2003-01-11 2004-07-22 Daimlerchrysler Ag Exhaust gas unit for a multicylinder combustion engine especially for a motor vehicle has perforated mixing chamber from which exhaust gas enters an expansion chamber
US20060283660A1 (en) * 2005-06-15 2006-12-21 Siemens Westinghouse Power Corporation Acoustic termination for a pressure monitoring system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4501341A (en) * 1981-03-12 1985-02-26 Jones Adrian D Low frequency muffler
EP0077148A1 (en) * 1981-09-29 1983-04-20 Nissan Motor Co., Ltd. Improved exhaust system for automotive vehicle or the like
DE3836589A1 (en) * 1988-10-27 1990-05-03 Eberspaecher J Compact silencer for commercial vehicles
DE10132164A1 (en) * 2000-07-06 2002-01-17 Boysen Friedrich Gmbh Co Kg Silencer for an internal combustion engine

Also Published As

Publication number Publication date
CN101025103A (en) 2007-08-29
JP2007224913A (en) 2007-09-06
US7527125B2 (en) 2009-05-05
JP5221883B2 (en) 2013-06-26
US20070205045A1 (en) 2007-09-06
CN101025103B (en) 2012-02-01
EP1826369A2 (en) 2007-08-29
EP1826369B1 (en) 2016-05-18
DE102006008941A1 (en) 2007-08-30

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