EP0781372B1 - Schalldämpfervorrichtung für brennkraftmaschine - Google Patents

Schalldämpfervorrichtung für brennkraftmaschine Download PDF

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Publication number
EP0781372B1
EP0781372B1 EP96925789A EP96925789A EP0781372B1 EP 0781372 B1 EP0781372 B1 EP 0781372B1 EP 96925789 A EP96925789 A EP 96925789A EP 96925789 A EP96925789 A EP 96925789A EP 0781372 B1 EP0781372 B1 EP 0781372B1
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EP
European Patent Office
Prior art keywords
tube
envelope
exhaust
passage
internal combustion
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.)
Expired - Lifetime
Application number
EP96925789A
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English (en)
French (fr)
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EP0781372A1 (de
Inventor
Alain Ferri
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Individual
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Individual
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Expired - Lifetime legal-status Critical Current

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    • 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
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/16—Selection of particular materials
    • 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
    • F01N1/24—Silencing apparatus characterised by method of silencing by using sound-absorbing materials
    • 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
    • F01N2310/00—Selection of sound absorbing or insulating material
    • F01N2310/04—Metallic wool, e.g. steel wool, copper wool or the like

Definitions

  • FIG. 2 represents a variant of the device in which the nozzle has different counter cones (5), intended according to the applications to improve the relaxation of gases in the straw (4).

Claims (11)

  1. Schalldämpfer für den Auspuff eines Verbrennungsmotors mit einer auf ihrer ganzen Länge perforierten Düse (1), die von einer koaxialen Hülle umgeben ist, die von einem vorderen Teil (2) und einem konischen hinteren Teil (3) gebildet wird, wobei die Düse eine Geometrie mit mehreren Kegeln bildet, die die Funktion haben, ein großes Volumen zu bilden und mindestens ein System zum Beschleunigen des Stroms der Auspuffgase mindestens auf einem Teil ihres Wegs zu schaffen, dadurch gekennzeichnet, dass der vordere Teil (2) der äußeren Hülle zylindrisch oder konisch ist, und dadurch, dass die Düse (1) und die Hülle (2), (3) einen vom Hals (6) bis zu dem hinteren Teil (3) durchgehenden ringförmigen Raum bilden, in dem die Gase hindurchtreten, die über ein Austrittsrohr austreten, das die Abführ der Gase gestattet und die Bildung von Gegendrücke erzeugenden Turbulenzen vermeidet.
  2. Schalldämpfer für den Auspuff eines Verbrennungsmotors nach Anspruch 1, dadurch gekennzeichnet, dass er keine Umlenkorgane aufweist und dass der Raum zwischen der Düse und der Hülle mit einer Wolle (4) gefüllt ist, die im hinteren Teil durch eine perforierte Platte oder Trennwand (6 BIS) gehalten ist, die die Gase an ihrem Umfang durch die Perforationen und in ihrer Mitte am Düsenaustritt hindurchtreten lässt.
  3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Düse von einem oder mehreren Kegeln, Gegenkegeln (5) und Zylinder in einem Stück gebildet ist.
  4. Vorrichtung nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, dass das System zum Beschleunigen des Stroms der Auspuffgase ein System vom Typ "Venturi" ist.
  5. Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Perforationen der Düse aus abwechselnden Löchern mit von einer Reihe zur anderen verschiedenen Durchmessern bestehen, wobei die Anzahl und die Größe der Perforationen an den Hubraum des Verbrennungsmotors angepasst sind.
  6. Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Hülle von einem vorderen Teil, der an der Düse am Hals (6) angeschweißt ist, und von einem abnehmbaren konischen hinteren Teil gebildet ist, wobei die aneinanderstoßenden Ränder dieser beiden Teile mit zwei Nuten gesickt sind, um eine schnelle Demontage und Montage zu gestatten.
  7. Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Düse in die vordere äußere Hülle (2) am Hals (6) eingesteckt ist und an einer perforierten Querwand (6 BIS) angeschweißt ist, die ihrerseits am vorderen Teil (2) der äußeren Hülle und am hinteren Teil (3) der äußeren Hülle angeschraubt ist.
  8. Vorrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass der hintere Teil (3) der koaxialen Hülle mit einem schrägen Austrittsrohr endet, das die Abfuhr der Gase nach unten gestattet.
  9. Vorrichtung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass sie an dem Auspuff eines Flugzeugmotors oder eines anderen Verbrennungsmotortyps montiert ist.
  10. Vorrichtung nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass die Einheit Düse-Hülle aus einem Blech aus rostfreiem Austenitstahl hergestellt ist.
  11. Vorrichtung nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass der Raum zwischen der Düse und der Hülle mit einer Wolle aus rostfreiem Austenitstahl gefüllt ist.
EP96925789A 1995-07-17 1996-07-16 Schalldämpfervorrichtung für brennkraftmaschine Expired - Lifetime EP0781372B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9508838A FR2736966B1 (fr) 1995-07-17 1995-07-17 Silencieux d'echappement pour moteur a explosion, pour aeronef
FR9508838 1995-07-17
PCT/FR1996/001098 WO1997004220A1 (fr) 1995-07-17 1996-07-16 Dispositif de silencieux pour moteurs a explosion

Publications (2)

Publication Number Publication Date
EP0781372A1 EP0781372A1 (de) 1997-07-02
EP0781372B1 true EP0781372B1 (de) 2003-10-01

Family

ID=9481216

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96925789A Expired - Lifetime EP0781372B1 (de) 1995-07-17 1996-07-16 Schalldämpfervorrichtung für brennkraftmaschine

Country Status (9)

Country Link
US (1) US5902970A (de)
EP (1) EP0781372B1 (de)
AT (1) ATE251270T1 (de)
AU (1) AU722523B2 (de)
CA (1) CA2200078A1 (de)
DE (1) DE69630190T2 (de)
ES (1) ES2208756T3 (de)
FR (1) FR2736966B1 (de)
WO (1) WO1997004220A1 (de)

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DE102009013222B3 (de) * 2009-03-17 2010-03-11 Kwh Automobiltechnik Gmbh Hohlkörper und Verfahren seiner Herstellung

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JP2001501269A (ja) * 1996-09-30 2001-01-30 シレントーア ノトックス アクティーゼルスカブ ガスフロー消音装置
US6520286B1 (en) 1996-09-30 2003-02-18 Silentor Holding A/S Silencer and a method of operating a vehicle
US5831223A (en) * 1997-09-24 1998-11-03 Kesselring; Stephen H. Self-tuning exhaust muffler
US6457552B2 (en) * 2000-02-15 2002-10-01 Thomas C. Maganas Methods and apparatus for low back pressure muffling of internal combustion engines
EP0959302A3 (de) * 1998-05-20 2000-02-23 Eberhard Reitz Rauchgasabzugsschalldämpfer
US6415747B1 (en) * 1998-06-19 2002-07-09 Yamaha Hatsudoki Kabushiki Kaisha Two stroke, multiple cylinder engine for small vehicle
US6241044B1 (en) * 1999-02-05 2001-06-05 Komatsu Ltd. Exhaust silencer and communicating pipe thereof
FR2790788B1 (fr) * 1999-03-12 2001-04-27 Penel Rech Et Dev Silencieux-detendeur pour moteurs a explosions
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US6385967B1 (en) * 2000-05-31 2002-05-14 Shun-Lai Chen Exhaust pipe for motor vehicle muffler
US6382348B1 (en) * 2001-02-09 2002-05-07 Shun-Lai Chen Twin muffler
EP1366273A4 (de) * 2001-02-15 2005-11-30 Hp Inc Ttr Luftturbine für verbrennungsmotor
US6510921B2 (en) 2001-02-19 2003-01-28 Samson Motorcycle Products, Inc. Muffler/exhaust extractor
US6799423B2 (en) * 2002-01-24 2004-10-05 David L. Piekarski Adjustable exhaust system for internal combustion engine
US20040163886A1 (en) * 2002-02-15 2004-08-26 Sutera Anthony J. Air turbine for combustion engine
US7210653B2 (en) * 2002-10-22 2007-05-01 The Boeing Company Electric-based secondary power system architectures for aircraft
WO2005116409A1 (en) * 2004-05-28 2005-12-08 Silentor Holding A/S Combination silencer
US7490467B2 (en) 2004-06-15 2009-02-17 Cummings Craig D Gas flow enhancer for combustion engines
US7267297B2 (en) * 2004-09-02 2007-09-11 The Boeing Company Integrated axially varying engine muffler, and associated methods and systems
US7364116B2 (en) * 2004-09-27 2008-04-29 The Boeing Company Automatic control systems for aircraft auxiliary power units, and associated methods
US7344107B2 (en) * 2004-10-26 2008-03-18 The Boeing Company Dual flow APU inlet and associated systems and methods
US7513119B2 (en) * 2005-02-03 2009-04-07 The Boeing Company Systems and methods for starting aircraft engines
US20060243521A1 (en) * 2005-04-29 2006-11-02 Samson Motorcycle Products, Inc. Muffler with improved heat dissipation
US7331422B2 (en) * 2005-07-18 2008-02-19 Alan Wall Vortex muffler
US7380397B2 (en) * 2005-09-08 2008-06-03 Chih-Kuang Chang Automobile exhaust pipe assembly
JP2007205348A (ja) * 2006-01-06 2007-08-16 Yamaha Motor Co Ltd マフラー及びマフラーを備えた車両
JP2007292048A (ja) * 2006-03-29 2007-11-08 Yamaha Motor Co Ltd 鞍乗型車両用排気装置および鞍乗型車両
JP2007292046A (ja) * 2006-03-29 2007-11-08 Yamaha Motor Co Ltd 鞍乗型車両用排気装置および鞍乗型車両
JP2007292049A (ja) * 2006-03-29 2007-11-08 Yamaha Motor Co Ltd 鞍乗型車両用排気装置および鞍乗型車両
JP2007292047A (ja) * 2006-03-29 2007-11-08 Yamaha Motor Co Ltd 鞍乗型車両用排気装置および鞍乗型車両
WO2008018821A1 (en) * 2006-08-11 2008-02-14 Volvo Construction Equipment Ab A device for attenuating and/or directing sound, and a work machine
US7765784B2 (en) * 2006-09-25 2010-08-03 The Boeing Company Thermally compliant APU exhaust duct arrangements and associated systems and methods
US7905321B2 (en) * 2007-02-12 2011-03-15 Ballard Iii Ebbin C Inserts for engine exhaust systems
US7445083B2 (en) * 2007-04-09 2008-11-04 Ching-Lin Wu Automotive muffler
US9194293B2 (en) * 2007-09-18 2015-11-24 Hamilton Sundstrand Corporation Air inlet noise attenuation assembly
US8657227B1 (en) 2009-09-11 2014-02-25 The Boeing Company Independent power generation in aircraft
US8256569B1 (en) 2010-10-04 2012-09-04 Huff Dennis L Exhaust sound attenuation device and method of use
US8738268B2 (en) 2011-03-10 2014-05-27 The Boeing Company Vehicle electrical power management and distribution
JP5909425B2 (ja) * 2012-01-18 2016-04-26 本田技研工業株式会社 エンジンの排気装置
US9175648B2 (en) * 2013-10-17 2015-11-03 Ford Global Technologies, Llc Intake system having a silencer device
WO2015179444A1 (en) 2014-05-19 2015-11-26 Eaton Corporation Supercharger outlet resonator
DE112016002188T5 (de) 2015-06-11 2018-01-25 Eaton Corporation Integrierter Laderresonator
CN105240092A (zh) * 2015-11-06 2016-01-13 葛荣超 液态汽车尾气净化装置
JP7155861B2 (ja) * 2018-10-19 2022-10-19 スズキ株式会社 鞍乗型車両の消音器構造

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Also Published As

Publication number Publication date
ES2208756T3 (es) 2004-06-16
DE69630190D1 (de) 2003-11-06
FR2736966B1 (fr) 1997-10-17
EP0781372A1 (de) 1997-07-02
US5902970A (en) 1999-05-11
DE69630190T2 (de) 2004-07-01
ATE251270T1 (de) 2003-10-15
FR2736966A1 (fr) 1997-01-24
WO1997004220A1 (fr) 1997-02-06
AU6617796A (en) 1997-02-18
CA2200078A1 (fr) 1997-03-14
AU722523B2 (en) 2000-08-03

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