WO2008052621A1 - Housing for exhaust silencers - Google Patents

Housing for exhaust silencers Download PDF

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Publication number
WO2008052621A1
WO2008052621A1 PCT/EP2007/008226 EP2007008226W WO2008052621A1 WO 2008052621 A1 WO2008052621 A1 WO 2008052621A1 EP 2007008226 W EP2007008226 W EP 2007008226W WO 2008052621 A1 WO2008052621 A1 WO 2008052621A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
housing according
feature
layers
sheet metal
Prior art date
Application number
PCT/EP2007/008226
Other languages
German (de)
French (fr)
Inventor
Thomas Weidner
Andreas Steigert
Markus Geminn
Original Assignee
Heinrich Gillet 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 Heinrich Gillet Gmbh filed Critical Heinrich Gillet Gmbh
Priority to PL07818316T priority Critical patent/PL2087217T3/en
Priority to EP07818316A priority patent/EP2087217B1/en
Publication of WO2008052621A1 publication Critical patent/WO2008052621A1/en

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
    • 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
    • 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
    • F01N13/18—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.
  • This object is achieved by 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)

Abstract

The invention relates to winding housings for exhaust systems in motor vehicles. The housing cover consists of multiple layers of thin sheet metal (1) spirally wound on top of one another. The sheet metal layers are glued together using a high temperature resistant adhesive (2). If necessary, the outer end of the sheet metal (1) can be fixed using welded joints (3).

Description

Beschreibung: Description:
Gehäuse für SchalldämpferHousing for silencer
Technisches Gebiet:Technical area:
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.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.
Stand der Technik:State of the art:
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.In 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.
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. Nach der gleichen Methode erfolgt die Verbindung zwischen dem Mantel und den Stirnblechen.These housings can be manufactured in different ways. A widespread technique is the so-called winding technique. Here, 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. To close the jacket, the sheet ends are welded or folded. By the same method, the connection between the jacket and the front plates takes place.
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.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.
Zum Minimieren von Körperschall werden oft Doppelbleche verwendet. Doppelbleche lassen sich noch schwieriger verarbeiten als dicke Einfachbleche.Double-sheeting is often used to minimize structure-borne noise. Double sheets can be processed even more difficult than thick single sheets.
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.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. This object is achieved by 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.
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.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.
Außerdem wirken die mehreren Lagen gleichsam als Labyrinthdichtung, so dass eine Verklebung nur des äußeren Blechendes völlig genügt.In addition, the multiple layers act as a kind of labyrinth seal, so that a bond only completely meets the outer end of the sheet metal.
Für die Verwendung als Katalysatorgehäuse, wo eine absolute Gasdichtigkeit verlangt wird, werden die Blechlagen über die ganze Länge und Breite verklebt.For use as a catalyst housing where absolute gas tightness is required, the sheet layers are bonded over the entire length and width.
Vorteilhafterweise wird ein Kleber auf Keramikbasis verwendet, der z. B. durch Erwärmen aushärtet.Advantageously, a ceramic-based adhesive is used, the z. B. hardens by heating.
Falls gewünscht, kann das äußere Blechende mittels Schweißpunkten oder einer Schweißnaht fixiert werden.If desired, the outer sheet metal end can be fixed by means of welds or a weld.
Kurze Beschreibung der Zeichnung:Brief description of the drawing:
Anhand der Zeichnung soll die Erfindung in Form des Ausführungsbeispiels erläutert werden.Reference to the drawing, the invention will be explained in the form of the embodiment.
Wege zur Ausführung der Erfindung und gewerbliche Verwertbarkeit:Ways to carry out the invention and commercial usability:
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.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.
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. It is understood that in addition a laser seam or a few weld points 3 are sufficient to fix the outer sheet end until the adhesive 2 is cured.

Claims

Patentansprüche: claims:
1. Gehäuse von Abgasanlagen für Kraftfahrzeuge, umfassend1. Housing of exhaust systems for motor vehicles, comprising
- ein eingangsseitiges Stirnblech,an input side face plate,
- ein ausgangsseitiges Stirnblech und einen Gehäusemantel aus mehreren übereinander gewickelten Lagen eines dünnen Blechs (1), gekennzeichnet durch das Merkmal:- An output-side end plate and a housing shell of several superposed layers of a thin sheet (1), characterized by the feature:
- die Blechlagen sind wenigstens bereichsweise verklebt mit einem hochtemperaturbeständigen Kleber (2).- The metal layers are at least partially glued with a high temperature resistant adhesive (2).
2. Gehäuse nach Anspruch 1 , gekennzeichnet durch das Merkmal2. Housing according to claim 1, characterized by the feature
- die Blechlagen sind wenigstens im äußeren Endbereich verklebt.- The metal layers are glued at least in the outer end region.
3. Gehäuse nach Anspruch 1 oder 2, gekennzeichnet durch das Merkmal3. Housing according to claim 1 or 2, characterized by the feature
- der Kleber (2) enthält eine Komponente auf Keramikbasis, die aushärtet.- The adhesive (2) contains a ceramic-based component that hardens.
4. Gehäuse nach Anspruch 1 , 2 oder 3, gekennzeichnet durch das Merkmal:4. Housing according to claim 1, 2 or 3, characterized by the feature:
- das äußere Blechende ist mittels Schweißpunkten oder Schweißnaht fixiert.- The outer end of the sheet is fixed by means of welds or weld.
5. Verwendung eines Gehäuses nach den Ansprüchen 1 bis 4 als Schalldämpfergehäuse.5. Use of a housing according to claims 1 to 4 as a muffler housing.
6. Verwendung eines Gehäuses nach den Ansprüchen 1 bis 4 als Katalysatorgehäuse.6. Use of a housing according to claims 1 to 4 as a catalyst housing.
7. Verwendung eines Gehäuses nach den Ansprüchen 1 bis 4 als Rußfiltergehäuse. 7. Use of a housing according to claims 1 to 4 as a soot filter housing.
PCT/EP2007/008226 2006-11-04 2007-09-21 Housing for exhaust silencers WO2008052621A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL07818316T PL2087217T3 (en) 2006-11-04 2007-09-21 Housing for exhaust silencers
EP07818316A EP2087217B1 (en) 2006-11-04 2007-09-21 Housing for exhaust silencers

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202006016896U DE202006016896U1 (en) 2006-11-04 2006-11-04 Housing for e.g. muffler of motor vehicle, has housing shell that comprises several layers of thin plate, where plate is wound on top of each other and layers of plate are clamped with high temperature constant adhesive in area wise
DE2020006016896.6 2006-11-04

Publications (1)

Publication Number Publication Date
WO2008052621A1 true WO2008052621A1 (en) 2008-05-08

Family

ID=37715871

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/008226 WO2008052621A1 (en) 2006-11-04 2007-09-21 Housing for exhaust silencers

Country Status (4)

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

Citations (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
DE10358504A1 (en) * 2003-12-13 2005-07-14 Daimlerchrysler Ag Catalyst housing manufacturing method for use in exhaust converter, involves rolling portion of sheet steel plate at gas opening of catalyst housing to form feeder, and forming protection edge for swelling mat at feeder by rolling process
DE202005013780U1 (en) * 2005-09-01 2005-11-24 Heinrich Gillet Gmbh Housing for exhaust silencer is made from several wound layers of thin sheet metal plate fixed along outer end by laser seam or spot welding

Family Cites Families (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

Patent Citations (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
DE10358504A1 (en) * 2003-12-13 2005-07-14 Daimlerchrysler Ag Catalyst housing manufacturing method for use in exhaust converter, involves rolling portion of sheet steel plate at gas opening of catalyst housing to form feeder, and forming protection edge for swelling mat at feeder by rolling process
DE202005013780U1 (en) * 2005-09-01 2005-11-24 Heinrich Gillet Gmbh Housing for exhaust silencer is made from several wound layers of thin sheet metal plate fixed along outer end by laser seam or spot welding

Also Published As

Publication number Publication date
EP2087217B1 (en) 2013-03-20
PL2087217T3 (en) 2013-07-31
DE202006016896U1 (en) 2007-01-25
EP2087217A1 (en) 2009-08-12

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