EP2087217B1 - Gehäuse für schalldämpfer - Google Patents

Gehäuse für schalldämpfer Download PDF

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Publication number
EP2087217B1
EP2087217B1 EP07818316A EP07818316A EP2087217B1 EP 2087217 B1 EP2087217 B1 EP 2087217B1 EP 07818316 A EP07818316 A EP 07818316A EP 07818316 A EP07818316 A EP 07818316A EP 2087217 B1 EP2087217 B1 EP 2087217B1
Authority
EP
European Patent Office
Prior art keywords
housing
sheet
housing according
layers
adhered
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.)
Not-in-force
Application number
EP07818316A
Other languages
English (en)
French (fr)
Other versions
EP2087217A1 (de
Inventor
Thomas Weidner
Andreas Steigert
Markus Geminn
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.)
Tenneco GmbH
Original Assignee
Tenneco GmbH
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 Tenneco GmbH filed Critical Tenneco GmbH
Priority to PL07818316T priority Critical patent/PL2087217T3/pl
Publication of EP2087217A1 publication Critical patent/EP2087217A1/de
Application granted granted Critical
Publication of EP2087217B1 publication Critical patent/EP2087217B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • 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
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1838—Construction facilitating manufacture, assembly, or disassembly characterised by the type of connection between parts of exhaust or silencing apparatus, e.g. between housing and tubes, between tubes and baffles
    • 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
    • F01N2450/28—Methods or apparatus for fitting, inserting or repairing different elements by using adhesive material, e.g. cement
    • 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
    • F01N2530/00—Selection of materials for tubes, chambers or housings
    • F01N2530/26—Multi-layered walls

Definitions

  • the invention relates to housings of exhaust systems for motor vehicles, comprising an input-side end plate, an output-side end plate and a housing shell of a plurality of superposed layers of a thin sheet.
  • each motor vehicle with internal combustion engine an exhaust system is installed, whose task is to reduce the pollutants and the noise emanating from the internal combustion engine to bearable and prescribed by law values.
  • Each exhaust system contains several housings, for example for catalytic converter, diesel particulate filter, front, center and rear muffler.
  • Each housing has an input, an output, usually designed as a cone, and a housing shell.
  • housings can be manufactured in different ways.
  • a widespread technique is the so-called winding technique.
  • the housing consists of an input-side end plate, an output-side end plate and an unwrapped on the two end plates sheet metal as a housing shell.
  • the sheet ends are welded or folded.
  • the connection between the jacket and the front plates takes place.
  • the sheet used In order for the housing shell to have the necessary stability and strength, the sheet used must have a minimum thickness. This minimum thickness is 1.2 - 1.5 mm. This thickness is also required to keep the emission of structure-borne noise small.
  • Double-sheeting is often used to minimize structure-borne noise. Double sheets can be processed even more difficult than thick single sheets.
  • the present invention has for its object to provide a housing for mufflers and the like elements, which can be made much easier and at the same time has excellent acoustic damping properties.
  • a housing comprising an input-side end plate, an output-side end plate, and a housing shell of a plurality of superposed layers of a thin sheet.
  • the metal layers are at least partially glued with a high temperature resistant adhesive.
  • the present invention forms the currently customary so-called winding technique, in which a thick sheet is wound over only 360 ° on the end face, consistently further by a long thin sheet is wound in several layers on the end plates and then glued.
  • the thin sheet is easy to wrap.
  • the multiple layers cause excellent acoustic damping, so that such housing emit virtually no structure-borne noise more.
  • the multiple layers act as a kind of labyrinth seal, so that a bond only completely meets the outer end of the sheet metal.
  • the sheet layers are bonded over the entire length and width.
  • a ceramic-based adhesive is used, the z. B. hardens by heating.
  • the outer sheet metal end can be fixed by means of welds or a weld.
  • the figure shows a perspective view of the jacket of a soot filter, catalyst or muffler housing, for simplicity, without the end plates.
  • the housing shell consists of two quarter-layers of a thin sheet 1, which is spirally wound on top of each other.
  • the sheet metal layers 1 are over the entire length with the help a high temperature resistant adhesive 2, preferably based on ceramic, glued. This achieves good hold and gas tightness.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
  • Exhaust Gas After Treatment (AREA)

Description

    Technisches Gebiet:
  • Die Erfindung betrifft Gehäuse von Abgasanlagen für Kraftfahrzeuge, umfassend ein eingangsseitiges Stirnblech, ein ausgangsseitiges Stirnblech und einen Gehäusemantel aus mehreren übereinander gewickelten Lagen eines dünnen Blechs.
    • Stand der Technik:
  • In jedes Kraftfahrzeug mit Verbrennungsmotor wird eine Abgasanlage eingebaut, deren Aufgabe es ist, die Schadstoffe sowie den Lärm, die vom Verbrennungsmotor ausgehen, auf erträgliche und vom Gesetzgeber vorgegebene Werte zu reduzieren. Jede Abgasanlage enthält mehrere Gehäuse, beispielsweise für Katalysator, Dieselrußfilter, Vor-, Mittel- und Nachschalldämpfer. Jedes Gehäuse besitzt einen Eingang, einen Ausgang, meist als Konus ausgebildet, und einen Gehäusemantel.
  • Diese Gehäuse können auf unterschiedliche Arten hergestellt werden. Eine weitverbreitete Technik ist die sogenannte Wickeltechnik. Hier besteht das Gehäuse aus einem eingangsseitigen Stirnblech, einem ausgangsseitigen Stirnblech und einem auf die beiden Stirnbleche ausgewickelten Blech als Gehäusemantel. Zum Schließen des Mantels werden die Blechenden verschweißt oder zusammengefaltet. Wie offenbart in Dokument DE 202005013480 U1 . Nach der gleichen Methode erfolgt die Verbindung zwischen dem Mantel und den Stirnblechen.
  • Damit der Gehäusemantel die nötige Stabilität und Festigkeit hat, muss das verwendete Blech eine Mindeststärke haben. Diese Mindeststärke liegt bei 1,2 - 1,5 mm. Diese Blechstärke ist auch erforderlich, um das Abstrahlen von Körperschall klein zu halten.
  • Zum Minimieren von Körperschall werden oft Doppelbleche verwendet. Doppelbleche lassen sich noch schwieriger verarbeiten als dicke Einfachbleche.
  • Der vorliegenden Erfindung liegt die Aufgabe zugrunde, ein Gehäuse für Schalldämpfer und dergleichen Elemente anzugeben, welches erheblich einfacher hergestellt werden kann und gleichzeitig hervorragende akustische Dämpfungseigenschaften besitzt.
  • Diese Aufgabe wird gelöst durch ein Gehäuse, umfassend ein eingangsseitiges Stirnblech, ein ausgangsseitiges Stirnblech, und einen Gehäusemantel aus mehreren übereinander gewickelten Lagen eines dünnen Blechs. Die Blechlagen sind wenigstens bereichsweise verklebt mit einem hochtemperaturbeständigen Kleber.
  • Die vorliegende Erfindung bildet die derzeit übliche sogenannte Wickeltechnik, bei der ein dickes Blech über nur 360° auf die Stirnfläche gewickelt wird, konsequent weiter, indem ein langes dünnes Blech in mehreren Lagen auf die Stirnbleche gewickelt und anschließend verklebt wird. Das dünne Blech lässt sich leicht wickeln. Die mehreren Lagen bewirken eine hervorragende akustische Dämpfung, so dass derartige Gehäuse praktisch keinen Körperschall mehr abstrahlen.
  • Außerdem wirken die mehreren Lagen gleichsam als Labyrinthdichtung, so dass eine Verklebung nur des äußeren Blechendes völlig genügt.
  • Für die Verwendung als Katalysatorgehäuse, wo eine absolute Gasdichtigkeit verlangt wird, werden die Blechlagen über die ganze Länge und Breite verklebt.
  • Vorteilhafterweise wird ein Kleber auf Keramikbasis verwendet, der z. B. durch Erwärmen aushärtet.
  • Falls gewünscht, kann das äußere Blechende mittels Schweißpunkten oder einer Schweißnaht fixiert werden.
    • Kurze Beschreibung der Zeichnung:
  • Anhand der Zeichnung soll die Erfindung in Form des Ausführungsbeispiels erläutert werden.
    • Wege zur Ausführung der Erfindung und gewerbliche Verwertbarkeit:
  • Die Figur zeigt in einer perspektivischen Darstellung den Mantel eines Rußfilter-, Katalysator- oder Schalldämpfergehäuses, der Einfachheit halber ohne die Stirnbleche. Der Gehäusemantel besteht aus zwei einviertel Lagen eines dünnen Blechs 1, welches spiralig übereinander gewickelt ist. Die Blechlagen 1 sind über die ganze Länge mit Hilfe eines hochtemperaturbeständigen Klebers 2, vorzugsweise auf Keramikbasis, verklebt. Dadurch werden guter Halt und Gasdichtheit erreicht.
  • Es versteht sich, dass zusätzlich eine Lasernaht oder auch einige wenige Schweißpunkte 3 genügen, um das äußere Blechende zu fixieren, bis der Kleber 2 ausgehärtet ist.

Claims (7)

  1. Gehäuse von Abgasanlagen für Kraftfahrzeuge, umfassend
    - ein eingangsseitiges Stirnblech,
    - ein ausgangsseitiges Stirnblech
    - und einen Gehäusemantel aus mehreren übereinander gewickelten Lagen eines dünnen Blechs (1),
    gekennzeichnet durch das Merkmal:
    - die Blechlagen sind wenigstens bereichsweise verklebt mit einem hochtemperaturbeständigen Kleber (2).
  2. Gehäuse nach Anspruch 1, gekennzeichnet durch das Merkmal
    - die Blechlagen sind wenigstens im äußeren Endbereich verklebt.
  3. Gehäuse nach Anspruch 1 oder 2, gekennzeichnet durch das Merkmal
    - der Kleber (2) enthält eine Komponente auf Keramikbasis, die aushärtet.
  4. Gehäuse nach Anspruch 1, 2 oder 3, gekennzeichnet durch das Merkmal:
    - das äußere Blechende ist mittels Schweißpunkten oder Schweißnaht fixiert.
  5. Verwendung eines Gehäuses nach den Ansprüchen 1 bis 4 als Schalldämpfergehäuse.
  6. Verwendung eines Gehäuses nach den Ansprüchen 1 bis 4 als Katalysatorgehäuse.
  7. Verwendung eines Gehäuses nach den Ansprüchen 1 bis 4 als Rußfiltergehäuse.
EP07818316A 2006-11-04 2007-09-21 Gehäuse für schalldämpfer Not-in-force EP2087217B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL07818316T PL2087217T3 (pl) 2006-11-04 2007-09-21 Obudowa tłumików wydechowych

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202006016896U DE202006016896U1 (de) 2006-11-04 2006-11-04 Gehäuse für Schalldämpfer
PCT/EP2007/008226 WO2008052621A1 (de) 2006-11-04 2007-09-21 Gehäuse für schalldämpfer

Publications (2)

Publication Number Publication Date
EP2087217A1 EP2087217A1 (de) 2009-08-12
EP2087217B1 true EP2087217B1 (de) 2013-03-20

Family

ID=37715871

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07818316A Not-in-force EP2087217B1 (de) 2006-11-04 2007-09-21 Gehäuse für schalldämpfer

Country Status (4)

Country Link
EP (1) EP2087217B1 (de)
DE (1) DE202006016896U1 (de)
PL (1) PL2087217T3 (de)
WO (1) WO2008052621A1 (de)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3507357A (en) * 1968-05-09 1970-04-21 James C Blome Ceramic-coated mufflers and methods of making same

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB562192A (en) * 1942-12-16 1944-06-21 Cecil Gordon Vokes Silencing means for gaseous currents
US5422445A (en) * 1994-04-11 1995-06-06 Midas International Corporation Vehicular muffler having expansion joint
DE10358504B4 (de) * 2003-12-13 2006-02-23 Daimlerchrysler Ag Verfahren zur Herstellung eines Katalysatorgehäuses
DE202005013780U1 (de) * 2005-09-01 2005-11-24 Heinrich Gillet Gmbh Gehäuse für Schalldämpfer

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3507357A (en) * 1968-05-09 1970-04-21 James C Blome Ceramic-coated mufflers and methods of making same

Also Published As

Publication number Publication date
PL2087217T3 (pl) 2013-07-31
WO2008052621A1 (de) 2008-05-08
EP2087217A1 (de) 2009-08-12
DE202006016896U1 (de) 2007-01-25

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