EP1217184A1 - Matériau absorbant acoustique, silencieux employant ce matériau absorbant acoustique, et procédé de formation d'un couche absorbante pour le silencieux - Google Patents

Matériau absorbant acoustique, silencieux employant ce matériau absorbant acoustique, et procédé de formation d'un couche absorbante pour le silencieux Download PDF

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Publication number
EP1217184A1
EP1217184A1 EP00127435A EP00127435A EP1217184A1 EP 1217184 A1 EP1217184 A1 EP 1217184A1 EP 00127435 A EP00127435 A EP 00127435A EP 00127435 A EP00127435 A EP 00127435A EP 1217184 A1 EP1217184 A1 EP 1217184A1
Authority
EP
European Patent Office
Prior art keywords
sound absorbing
absorbing material
bundled
perforated pipe
muffler
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
EP00127435A
Other languages
German (de)
English (en)
Other versions
EP1217184B1 (fr
Inventor
Yukihiro Nakagawa
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.)
Nakagawa Sangyo Co Ltd
Toyota Motor Corp
Original Assignee
Nakagawa Sangyo Co Ltd
Toyota Motor Corp
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 Nakagawa Sangyo Co Ltd, Toyota Motor Corp filed Critical Nakagawa Sangyo Co Ltd
Priority to DE2000603201 priority Critical patent/DE60003201T2/de
Priority to EP00127435A priority patent/EP1217184B1/fr
Publication of EP1217184A1 publication Critical patent/EP1217184A1/fr
Application granted granted Critical
Publication of EP1217184B1 publication Critical patent/EP1217184B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F01N1/24—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
    • F01N2310/02—Mineral wool, e.g. glass wool, rock wool, asbestos or the like
    • 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
    • F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
    • F01N2450/06—Inserting sound absorbing material into a chamber

Definitions

  • a muffler aiming at sound reduction of exhaust gas is arranged in an exhaust system of an internal combustion engine of an automobile.
  • an object of the present invention is to provide a sound absorbing material which is superior in acid resistance, alkali resistance and sound absorbing qualities, a muffler using this sound absorbing material, and a method for forming a sound absorbing layer of the muffler.
  • the sound absorbing material 2 is wound around a perforated pipe of the muffler.
  • the bundled material is supplied into the nozzle while blowing the compressed air into the nozzle, and the bundled material is unraveled by the compressed air to form the continuously fibrillated sound absorbing material from the nozzle, thereby readily and continuously performing the above fibrillation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
EP00127435A 2000-12-14 2000-12-14 Matériau absorbant acoustique, silencieux employant ce matériau absorbant acoustique, et procédé de formation d'un couche absorbante pour le silencieux Expired - Lifetime EP1217184B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE2000603201 DE60003201T2 (de) 2000-12-14 2000-12-14 Schallschluckendes Material, Schalldämpfer mit diesem schallschluckenden Material, und Verfahren zur Formung einer schallschluckenden Schicht hierfür
EP00127435A EP1217184B1 (fr) 2000-12-14 2000-12-14 Matériau absorbant acoustique, silencieux employant ce matériau absorbant acoustique, et procédé de formation d'un couche absorbante pour le silencieux

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP00127435A EP1217184B1 (fr) 2000-12-14 2000-12-14 Matériau absorbant acoustique, silencieux employant ce matériau absorbant acoustique, et procédé de formation d'un couche absorbante pour le silencieux

Publications (2)

Publication Number Publication Date
EP1217184A1 true EP1217184A1 (fr) 2002-06-26
EP1217184B1 EP1217184B1 (fr) 2003-06-04

Family

ID=8170666

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00127435A Expired - Lifetime EP1217184B1 (fr) 2000-12-14 2000-12-14 Matériau absorbant acoustique, silencieux employant ce matériau absorbant acoustique, et procédé de formation d'un couche absorbante pour le silencieux

Country Status (2)

Country Link
EP (1) EP1217184B1 (fr)
DE (1) DE60003201T2 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007061133A1 (fr) * 2005-11-24 2007-05-31 Toyota Jidosha Kabushiki Kaisha Silencieux secondaire
WO2012113867A1 (fr) * 2011-02-23 2012-08-30 Dbw Holding Gmbh Élément de silencieux pour véhicules à moteur et procédé de fabrication correspondant
US20140054106A1 (en) * 2011-02-23 2014-02-27 Dbw Holding Gmbh Muffler insert for motor vehicles and method for producing same
CN115714064A (zh) * 2022-12-28 2023-02-24 江西国翔电力设备有限公司 一种抗噪安全干式变压器

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0074220A2 (fr) * 1981-08-26 1983-03-16 Lancaster Glass Fibre Limited Insertion pour silencieux
EP0153100A1 (fr) * 1984-02-14 1985-08-28 Unipart Group Limited Procédé et appareil pour le garnissage des silencieux d'échappement
US4569471A (en) * 1982-04-06 1986-02-11 Ab Volvo Container through which a gas flows, preferably a muffler, with fiberglass filling and method and apparatus for filling the same
US4774985A (en) * 1983-11-18 1988-10-04 Tba Industrial Products Ltd. Apparatus for filling automotive muffler with glass fibers
EP0714087A2 (fr) * 1994-11-26 1996-05-29 Firma J. Eberspächer Atténuateur sonore à résonateur
WO1998024615A1 (fr) * 1996-12-02 1998-06-11 Owens Corning Produits d'isolation moules et procede de fabrication de ces produits utilisant une laine a fil continu
US5912441A (en) * 1996-07-05 1999-06-15 J. Eberspacher Gmbh & Co. Absorption/reflection exhaust muffler
US6094817A (en) * 1998-10-15 2000-08-01 Acoust-A-Fiber Research And Development, Inc. Method for filling a silencer with sound insulating material

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5926954A (en) * 1997-09-10 1999-07-27 Acoust-A-Fiber Research & Development, Inc. Method of making a silencer

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0074220A2 (fr) * 1981-08-26 1983-03-16 Lancaster Glass Fibre Limited Insertion pour silencieux
US4569471A (en) * 1982-04-06 1986-02-11 Ab Volvo Container through which a gas flows, preferably a muffler, with fiberglass filling and method and apparatus for filling the same
US4774985A (en) * 1983-11-18 1988-10-04 Tba Industrial Products Ltd. Apparatus for filling automotive muffler with glass fibers
EP0153100A1 (fr) * 1984-02-14 1985-08-28 Unipart Group Limited Procédé et appareil pour le garnissage des silencieux d'échappement
EP0714087A2 (fr) * 1994-11-26 1996-05-29 Firma J. Eberspächer Atténuateur sonore à résonateur
US5912441A (en) * 1996-07-05 1999-06-15 J. Eberspacher Gmbh & Co. Absorption/reflection exhaust muffler
WO1998024615A1 (fr) * 1996-12-02 1998-06-11 Owens Corning Produits d'isolation moules et procede de fabrication de ces produits utilisant une laine a fil continu
US6094817A (en) * 1998-10-15 2000-08-01 Acoust-A-Fiber Research And Development, Inc. Method for filling a silencer with sound insulating material

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007061133A1 (fr) * 2005-11-24 2007-05-31 Toyota Jidosha Kabushiki Kaisha Silencieux secondaire
US7896129B2 (en) 2005-11-24 2011-03-01 Toyota Jidosha Kabushiki Kaisha Sub-muffler
WO2012113867A1 (fr) * 2011-02-23 2012-08-30 Dbw Holding Gmbh Élément de silencieux pour véhicules à moteur et procédé de fabrication correspondant
CN103502586A (zh) * 2011-02-23 2014-01-08 Dbw控股有限责任公司 用于汽车的消音器嵌入件和用于制造其的方法
US20140054106A1 (en) * 2011-02-23 2014-02-27 Dbw Holding Gmbh Muffler insert for motor vehicles and method for producing same
US20140060964A1 (en) * 2011-02-23 2014-03-06 Dbw Holding Gmbh Muffler insert for motor vehicles and method for producing same
US9133754B2 (en) * 2011-02-23 2015-09-15 Dbw Holding Gmbh Muffler insert for motor vehicles and method for producing same
US9249726B2 (en) 2011-02-23 2016-02-02 Dbw Holding Gmbh Muffler insert for motor vehicles and method for producing same
RU2579802C2 (ru) * 2011-02-23 2016-04-10 Дбв Холдинг Гмбх Шумопоглощающая вставка для автомобилей и способ ее изготовления
CN103502586B (zh) * 2011-02-23 2016-09-14 Dbw控股有限责任公司 用于汽车的消音器嵌入件和用于制造其的方法
CN115714064A (zh) * 2022-12-28 2023-02-24 江西国翔电力设备有限公司 一种抗噪安全干式变压器

Also Published As

Publication number Publication date
DE60003201D1 (de) 2003-07-10
EP1217184B1 (fr) 2003-06-04
DE60003201T2 (de) 2003-12-18

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