EP1941137B1 - Housing for a component of an emission system, and method for the production of such a housing - Google Patents

Housing for a component of an emission system, and method for the production of such a housing Download PDF

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Publication number
EP1941137B1
EP1941137B1 EP06791869A EP06791869A EP1941137B1 EP 1941137 B1 EP1941137 B1 EP 1941137B1 EP 06791869 A EP06791869 A EP 06791869A EP 06791869 A EP06791869 A EP 06791869A EP 1941137 B1 EP1941137 B1 EP 1941137B1
Authority
EP
European Patent Office
Prior art keywords
component
housing
envelope
diameter
connecting portion
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 - Fee Related
Application number
EP06791869A
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German (de)
French (fr)
Other versions
EP1941137A1 (en
Inventor
Otto Steinhauser
Stefan Keller
Erich Forster
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.)
Faurecia Emissions Control Technologies Germany GmbH
Original Assignee
Emcon Technologies Germany Augsburg GmbH
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Publication date
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Publication of EP1941137A1 publication Critical patent/EP1941137A1/en
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Publication of EP1941137B1 publication Critical patent/EP1941137B1/en
Expired - Fee Related 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
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • 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
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F01N3/2839—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration
    • F01N3/2853—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration using mats or gaskets between catalyst body and housing
    • 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
    • F01N2450/02—Fitting monolithic blocks into the housing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49345—Catalytic device making

Definitions

  • the invention relates to a housing for a component of an exhaust system, in particular for an exhaust gas purification device.
  • the invention also relates to a method for producing a housing for a component of an exhaust system.
  • the component may in particular be a diesel particulate filter or a catalyst. These are mounted together with a bearing mat inside the housing. Recently, a manufacturing method which is commonly referred to as “calibration” is often used. In this method, the housing is provided with a circumferentially closed shell, then inserted the component with the bearing mat in the shell and then compressed the jacket in the radial direction until the component is held with the bearing mat with the desired pressure inside the housing. This process is also known as “shrinking". In modern shrink method while the jacket is individually geshrinkt each, so taking into account the individual dimensions of the component and the bearing mat. As a result, the diameter of the geshrinkten housing varies within certain limits.
  • an inlet cone and an outlet cone is usually mounted upstream and downstream of the housing. Since these are always provided with the same diameter, it is provided in modern shrink method to calibrate the axial ends of the housing for the component after shrinking so that the housing always has the same diameter at least at its axial ends, regardless of individual Shrink. This process is very complicated on the whole.
  • the object of the invention is to provide a housing for a component of an exhaust system, which makes it possible to connect with less effort an inlet cone or an outlet cone.
  • the object of the invention is also to provide a method for the simplified production of such a housing.
  • a housing for a component of an exhaust system is provided according to the invention, in particular for an exhaust gas purification device, with the features of claim 1.
  • the steps are provided according to claim 6.
  • the invention is based on the surprising finding that when the jacket is shrunk only in a central region and a short section at the axial ends of the shell remains unprocessed, the diameter and also the angle of these unprocessed portions to only a very small extent of the diameter of depends on the central area.
  • the jacket when the component is accommodated in the interior of the housing, the jacket ends approximately flush with the component in the axial direction.
  • the jacket can be made shorter than in the prior art.
  • the jacket In the prior art, the jacket must project beyond the component in the axial direction, otherwise the axial ends of the jacket can not be calibrated.
  • the invention takes into account the recognition that the diameter of the shell at the axial ends, when the clamping portion is shrunk, increases, so that there is sufficient space for receiving the input cone or the output cone available. This is insofar. Surprisingly, when the diameter at the axial end of the shell changes in exactly the opposite direction as the diameter of the clamping portion.
  • FIG. 1 a housing 10 can be seen, which consists of a jacket 12 and two connecting parts 14, of which only one is shown here.
  • the connecting parts are an inlet cone or an outlet cone, with which the housing can be connected to an exhaust system of an internal combustion engine.
  • a component 16 of the exhaust system is arranged, in particular a diesel particulate filter or a catalyst.
  • the component 16 is surrounded by a bearing mat 18:
  • the jacket 12 In the initial state, ie before the attachment of the component 16, the jacket 12 has a diameter DA (see FIG. 3 ), wherein the sheath does not necessarily have to have a circular cross section, but also may have an oval, triovalen or other cross section.
  • the shell 12 is in the initial state with a length L beyond a clamping portion 20 in which a shrink tool 22 engages the shell and this upsets in the radial direction. Due to the compression of the jacket in the region of the clamping section, the diameter is there to the final diameter DE (see again FIG. 3 ), so that the component 16 is held together with the bearing mat 18 firmly in the interior of the shell.
  • the final diameter DE is matched to the respective diameter of the component 16. It is noteworthy, however, that changes in the final diameter DE lead only to a negligible extent to changes in the diameter of the connecting portion 26 and the angle ⁇ .
  • changes in the final diameter DE lead only to a negligible extent to changes in the diameter of the connecting portion 26 and the angle ⁇ .
  • the length L with which the jacket protrudes beyond the shrinking tool 22 in the initial state, was varied between 15 and 24 mm.
  • a standard connection part 14 can be attached to each individually jacketed jacket 12. This can, for example, as in the FIGS. 1 and 2 can be seen to have a tapered terminal portion 15 which is inserted into the connecting portion 26. Subsequently, the jacket 12 and the connecting part 14 can be connected to each other, for example, welded or soldered.

Description

Die Erfindung betrifft ein Gehäuse für ein Bauteil einer Abgasanlage, insbesondere für eine Abgasreinigungsvorrichtung. Die Erfindung betrifft auch ein Verfahren zur Herstellung eines Gehäuses für ein Bauteil einer Abgasanlage.The invention relates to a housing for a component of an exhaust system, in particular for an exhaust gas purification device. The invention also relates to a method for producing a housing for a component of an exhaust system.

Bei dem Bauteil kann es sich insbesondere um einen Dieselpartikelfilter oder um einen Katalysator handeln. Diese werden zusammen mit einer Lagermatte im Inneren des Gehäuses angebracht. In jüngster Zeit wird dabei häufig ein Herstellungsverfahren verwendet, welches allgemein als "Kalibrieren" bezeichnet wird. Bei diesem Verfahren wird das Gehäuse mit einem in Umfangsrichtung geschlossenen Mantel bereitgestellt, dann das Bauteil mit der Lagermatte in den Mantel eingeschoben und anschließend der Mantel in radialer Richtung gestaucht, bis das Bauteil mit der Lagermatte mit dem gewünschten Druck im Inneren des Gehäuses gehalten ist. Dieses Verfahren ist auch als "Shrinken" bekannt. Bei modernen Shrink-Verfahren wird dabei der Mantel jeweils individuell geshrinkt, also unter Berücksichtigung der individuellen Abmessungen des Bauteils und der Lagermatte. Dies führt dazu, dass der Durchmesser der geshrinkten Gehäuse innerhalb bestimmter Grenzen variiert.The component may in particular be a diesel particulate filter or a catalyst. These are mounted together with a bearing mat inside the housing. Recently, a manufacturing method which is commonly referred to as "calibration" is often used. In this method, the housing is provided with a circumferentially closed shell, then inserted the component with the bearing mat in the shell and then compressed the jacket in the radial direction until the component is held with the bearing mat with the desired pressure inside the housing. This process is also known as "shrinking". In modern shrink method while the jacket is individually geshrinkt each, so taking into account the individual dimensions of the component and the bearing mat. As a result, the diameter of the geshrinkten housing varies within certain limits.

Um das Gehäuse mit dem darin eingebrachten Bauteil an eine Abgasanlage anschließen zu können, wird stromaufwärts und stromabwärts des Gehäuses üblicherweise ein Einlasskonus und ein Auslasskonus angebracht. Da diese immer mit demselben Durchmesser bereitgestellt werden, ist bei modernen Shrink-Verfahren vorgesehen, die axialen Enden des Gehäuses für das Bauteil nach dem Shrinken zu kalibrieren, damit das Gehäuse wenigstens an seinen axialen Enden, unabhängig vom individuellen Shrinken, immer denselben Durchmesser hat. Dieses Verfahren ist insgesamt sehr aufwendig.In order to connect the housing with the component introduced therein to an exhaust system, an inlet cone and an outlet cone is usually mounted upstream and downstream of the housing. Since these are always provided with the same diameter, it is provided in modern shrink method to calibrate the axial ends of the housing for the component after shrinking so that the housing always has the same diameter at least at its axial ends, regardless of individual Shrink. This process is very complicated on the whole.

Aus der US-A-5,118,476 ist ein Bauteil gemäß dem Oberbegriff des Anspruchs 1 bekannt, bei dem die axialen Ende des Mantels, die zur Verbindung mit einem Ein- bzw. Auslasskonus verwendet werden, durch einen axial gegen den Mantel bewegten Stempel verformt werden, bevor der Mantel geshrinkt wird.From the US-A-5,118,476 a component according to the preamble of claim 1 is known, in which the axial end of the shell, which are used for connection to an inlet or outlet cone, are deformed by a die moving axially against the shell, before the shell is shrunk.

Aus der EP 1 548 243 A1 ist ein Shrink-Verfahren bekannt, bei dem der Mantel geshrinkt wird, während dessen axiale Enden gestützt werden.From the EP 1 548 243 A1 For example, a shrink method is known in which the jacket is shrunk while supporting its axial ends.

Die Aufgabe der Erfindung besteht darin, ein Gehäuse für ein Bauteil einer Abgasanlage zu schaffen, das es ermöglicht, mit geringerem Aufwand einen Einlasskonus bzw. einen Auslasskonus anzuschließen. Die Aufgabe der Erfindung besteht auch darin, ein Verfahren zur vereinfachten Herstellung eines solchen Gehäuses zu schaffen.The object of the invention is to provide a housing for a component of an exhaust system, which makes it possible to connect with less effort an inlet cone or an outlet cone. The object of the invention is also to provide a method for the simplified production of such a housing.

Zu diesem Zweck ist erfindungsgemäß ein Gehäuse für ein Bauteil einer Abgasanlage vorgesehen, insbesondere für eine Abgasreinigungsvorrichtung, mit den Merkmalen des Anspruchs 1. Beim erfindungsgemäßen Verfahren sind die Schritte gemäß Anspruch 6 vorgesehen. Die Erfindung beruht auf der überraschenden Erkenntnis, dass dann, wenn der Mantel nur in einem Mittelbereich geshrinkt wird und ein kurzer Abschnitt an den axialen Enden des Mantels unbearbeitet bleibt, der Durchmesser und auch der Winkel dieser unbearbeiteten Abschnitte in nur sehr geringem Maße vom Durchmesser des geshrinkten Mittelbereichs abhängt. Anders ausgedrückt: Unabhängig von dem Durchmesser, auf den der Mittelbereich geshrinkt wird, ergibt sich immer ein etwa kegelstumpfförmiger Verbindungsabschnitt an den axialen Enden des Mantels, dessen Durchmesser und Winkelausrichtung nur in einem so geringen Maße schwankt, dass er ohne weitere Bearbeitungsschritte zum Anschließen des Einlasskonus oder des Auslasskonus geeignet ist.For this purpose, a housing for a component of an exhaust system is provided according to the invention, in particular for an exhaust gas purification device, with the features of claim 1. In the method according to the invention, the steps are provided according to claim 6. The invention is based on the surprising finding that when the jacket is shrunk only in a central region and a short section at the axial ends of the shell remains unprocessed, the diameter and also the angle of these unprocessed portions to only a very small extent of the diameter of depends on the central area. In other words, regardless of the diameter to which the central region is shrunk, always results in an approximately frusto-conical connecting portion at the axial ends of the shell whose diameter and angular orientation varies only to such a small extent that it without further processing steps for connecting the inlet cone or the outlet cone is suitable.

Gemäß der bevorzugten Ausführungsform der Erfindung endet der Mantel, wenn im Inneren des Gehäuses das Bauteil aufgenommen ist, in axialer Richtung etwa bündig mit dem Bauteil. Dies stellt einen besonderen Vorteil des erfindungsgemäßen Verfahrens und des erfindungsgemäßen Gehäuses dar, da der Mantel kürzer ausgeführt werden kann als im Stand der Technik. Im Stand der Technik muß der Mantel in axialer Richtung über das Bauteil hinausstehen, da andernfalls die axialen Enden des Mantels nicht kalibriert werden können. Die Erfindung berücksichtigt jedoch die Erkenntnis, dass sich der Durchmesser des Mantels an den axialen Enden, wenn der Klemmabschnitt geshrinkt wird, erhöht, so dass genügend Raum für die Aufnahme des Eingangskonus oder des Ausgangskonus zur Verfügung steht. Dies ist insofern. überraschend als sich der Durchmesser am axialen Ende des Mantels in exakt der entgegengesetzten Richtung ändert wie der Durchmesser des Klemmabschnittes.According to the preferred embodiment of the invention, when the component is accommodated in the interior of the housing, the jacket ends approximately flush with the component in the axial direction. This represents a particular advantage of the method and the housing according to the invention, since the jacket can be made shorter than in the prior art. In the prior art, the jacket must project beyond the component in the axial direction, otherwise the axial ends of the jacket can not be calibrated. However, the invention takes into account the recognition that the diameter of the shell at the axial ends, when the clamping portion is shrunk, increases, so that there is sufficient space for receiving the input cone or the output cone available. This is insofar. Surprisingly, when the diameter at the axial end of the shell changes in exactly the opposite direction as the diameter of the clamping portion.

Die Erfindung wird nachfolgend anhand eines Ausführungsbeispiels beschrieben, das in den beigefügten Zeichnungen dargestellt ist. In diesen zeigen:

  • Figur 1 einen schematischen Schnitt durch ein erfindungsgemäßes Gehäuse;
  • Figur 2 in vergrößertem Maßstab den Ausschnitt II von Figur 1; und
  • Figur 3 schematisch die Gestalt des Mantels vor und nach dem Shrinken.
The invention will be described below with reference to an embodiment shown in the accompanying drawings. In these show:
  • FIG. 1 a schematic section through an inventive housing;
  • FIG. 2 on an enlarged scale the section II of FIG. 1 ; and
  • FIG. 3 schematically the shape of the coat before and after shrinking.

In Figur 1 ist ein Gehäuse 10 zu sehen, welches aus einem Mantel 12 und zwei Anschlußteilen 14 besteht, von denen hier nur eines gezeigt ist. Bei den Anschlußteilen handelt es sich um einen Einlaßkonus oder einen Auslaßkonus, mit dem das Gehäuse an eine Abgasanlage einer Verbrennungskraftmaschine angeschlossen werden kann. Im Inneren des Mantels 12 ist ein Bauteil 16 der Abgasanlage angeordnet, insbesondere ein Dieselpartikelfilter oder ein Katalysator. Das Bauteil 16 ist von einer Lagermatte 18 umgeben:In FIG. 1 a housing 10 can be seen, which consists of a jacket 12 and two connecting parts 14, of which only one is shown here. When the connecting parts are an inlet cone or an outlet cone, with which the housing can be connected to an exhaust system of an internal combustion engine. Inside the shell 12, a component 16 of the exhaust system is arranged, in particular a diesel particulate filter or a catalyst. The component 16 is surrounded by a bearing mat 18:

Im Ausgangszustand, also vor der Anbringung des Bauteils 16, hat der Mantel 12 einen Durchmesser DA (siehe Figur 3), wobei der Mantel nicht notwendigerweise einen kreisförmigen Querschnitt haben muß, sondern auch einen ovalen, triovalen oder sonstigen Querschnitt haben kann. Wie ebenfalls in Figur 3 zu sehen ist, steht der Mantel 12 im Ausgangszustand mit einer Länge L über einen Klemmabschnitt 20 hinaus, in welchem ein Shrinkwerkzeug 22 am Mantel angreift und diesen in radialer Richtung staucht. Durch das Stauchen des Mantels im Bereich des Klemmabschnittes wird dort der Durchmesser auf den Enddurchmesser DE (siehe wieder Figur 3) verringert, so daß das Bauteil 16 zusammen mit der Lagermatte 18 fest im Inneren des Mantels gehalten ist. Beim Stauchen oder Shrinken verformt sich der Bereich des Mantels, der in axialer Richtung über das Shrinkwerkzeug 22 hinaussteht, in der in Figur 3 ersichtlichen Weise. An den radial einwärts gestauchten Klemmabschnitt 20 schließt sich ein im Querschnitt gekrümmter Übergangsabschnitt 24 an, in welchem sich der Durchmesser des Mantels nach außen hin erweitert, und an den Übergangsabschnitt 24 schließt sich ein Verbindungsabschnitt 26 an, der etwa kegelstumpfförmig ist und seinen maximalen Durchmesser am axialen Ende des Mantels 12 hat. Der Verbindungsabschnitt 26 weist einen Neigungswinkel von α auf, und der Durchmesser des Mantels am äußeren Ende des Verbindungsabschnitts 26 ist größer als der Ausgangsdurchmesser DA. Angemerkt sei noch, daß die Gesamtlänge des Mantels beim Shrinken zunimmt, da sich die Durchmesserverringerung des Mantels etwa zur Hälfte in einer größeren Wandstärke und zur anderen Hälfte in einer größeren Länge niederschlägt.In the initial state, ie before the attachment of the component 16, the jacket 12 has a diameter DA (see FIG. 3 ), wherein the sheath does not necessarily have to have a circular cross section, but also may have an oval, triovalen or other cross section. Like also in FIG. 3 can be seen, the shell 12 is in the initial state with a length L beyond a clamping portion 20 in which a shrink tool 22 engages the shell and this upsets in the radial direction. Due to the compression of the jacket in the region of the clamping section, the diameter is there to the final diameter DE (see again FIG. 3 ), so that the component 16 is held together with the bearing mat 18 firmly in the interior of the shell. When upsetting or shrinking deforms the region of the jacket, which protrudes in the axial direction over the shrinking tool 22, in the FIG. 3 apparent way. At the radially inwardly compressed clamping portion 20 is followed by a cross-sectionally curved transition portion 24, in which the diameter of the shell widens outwardly, and the transition portion 24 is followed by a connecting portion 26 which is approximately frusto-conical and its maximum diameter at axial end of the shell 12 has. The connecting portion 26 has an inclination angle of α, and the diameter of the shell at the outer end of the connecting portion 26th is larger than the output diameter DA. It should also be noted that the total length of the jacket increases when shrinking, since the reduction in diameter of the shell precipitates about half in a larger wall thickness and the other half in a greater length.

Bei modernen Shrink-Verfahren ist der Enddurchmesser DE an den jeweiligen Durchmesser des Bauteils 16 abgestimmt. Bemerkenswert ist jedoch, daß Änderungen des Enddurchmessers DE nur in vernachlässigbarem Maße zu Änderungen des Durchmessers des Verbindungsabschnittes 26 und des Winkels α führen. Bei Versuchen wurde herausgefunden, daß beim Shrinken beispielsweise von einem Ausgangsdurchmesser von 158,4 mm auf einen Solldurchmesser von 152,8 mm und einer individuellen Anpassung des Enddurchmessers DE um ± 1 mm vom Solldurchmesser eine vernachlässigbare Änderung des Durchmessers des Verbindungsabschnittes im Bereich von ± 0,1 mm beobachtet werden konnte. Die Länge L, mit der der Mantel über das Shrinkwerkzeug 22 im Ausgangszustand hinaussteht, wurde dabei zwischen 15 und 24 mm variiert.In modern shrink method, the final diameter DE is matched to the respective diameter of the component 16. It is noteworthy, however, that changes in the final diameter DE lead only to a negligible extent to changes in the diameter of the connecting portion 26 and the angle α. In experiments, it has been found that when shrinking, for example, from a starting diameter of 158.4 mm to a nominal diameter of 152.8 mm and an individual adjustment of the final diameter DE by ± 1 mm from the nominal diameter, a negligible change in the diameter of the connecting portion in the range of ± 0 , 1 mm could be observed. The length L, with which the jacket protrudes beyond the shrinking tool 22 in the initial state, was varied between 15 and 24 mm.

Da der Durchmesser und der Winkel des Verbindungsabschnittes 26 trotz Änderungen beim Enddurchmesser DE immer nahezu konstant bleibt, kann an jeden individuell geshrinkten Mantel 12 ein Standard-Anschlußteil 14 angesetzt werden. Dieses kann beispielsweise, wie in den Figuren 1 und 2 zu sehen ist, einen kegelig verlaufenden Anschlußabschnitt 15 aufweisen, der in den Verbindungsabschnitt 26 eingesetzt ist. Anschließend können der Mantel 12 und das Anschlußteil 14 miteinander verbunden werden, z.B. verschweißt oder verlötet.Since the diameter and the angle of the connecting portion 26 always remains almost constant despite changes in the final diameter DE, a standard connection part 14 can be attached to each individually jacketed jacket 12. This can, for example, as in the FIGS. 1 and 2 can be seen to have a tapered terminal portion 15 which is inserted into the connecting portion 26. Subsequently, the jacket 12 and the connecting part 14 can be connected to each other, for example, welded or soldered.

Ein weiterer Vorteil, der sich ergibt, wenn der Mantel 12 nur auf einem Teil seiner Länge geshrinkt wird, besteht darin, daß sich der Verbindungsabschnitt 26 gegenüber dem Ausgangsdurchmesser aufweitet, so daß das Anschlußteil 14 in den Zwischenraum zwischen Bauteils 16 und Mantel 12 eingesteckt werden kann. Wie deutlich in den Figuren 1 und 2 zu sehen ist, überlappt das Anschlußteil 14 mit dem Bauteil 16. Dadurch ergibt sich ein in axialer Richtung besonders kompaktes Gehäuse. Die Klemmung zwischen dem Mantel 12 und dem Bauteil 16 wird nicht dadurch beeinträchtigt, daß das Bauteil 16 nicht auf seiner gesamten Länge geklemmt wird, sondern an seinen axialen Enden frei im Inneren des Gehäuses aufgenommen ist.Another advantage that results when the shell 12 is shrunk on only part of its length is that the connecting portion 26 widens relative to the exit diameter so that the connector 14 is inserted into the space between the component 16 and shell 12 can. How clear in the FIGS. 1 and 2 can be seen, the connecting part 14 overlaps with the component 16. This results in a particularly compact housing in the axial direction. The clamping between the shell 12 and the component 16 is not affected by the fact that the component 16 is not clamped over its entire length, but is freely received at its axial ends in the interior of the housing.

Bezugszeichenliste:LIST OF REFERENCE NUMBERS

10:10:
Gehäusecasing
12:12:
Mantelcoat
14:14:
Anschlußteilconnector
15:15:
Anschlußabschnittconnecting section
16:16:
Bauteilcomponent
18:18:
Lagermattebearing mat
20:20:
Klemmabschnittclamping section
22:22:
ShrinkwerkzeugShrinkwerkzeug
24:24:
ÜbergangsabschnittTransition section
26:26:
Verbindungsabschnittconnecting portion
DA:THERE:
AusgangsdurchmesserInitial diameter
DE:DE:
Enddurchmesserfinal diameter
α:α:
Neigungswinkeltilt angle
L:L:
ÜberstandGot over

Claims (7)

  1. A housing (10) for a component (16) of an exhaust system, in particular for an exhaust gas purification device, having an envelope (12) which comprises a shrunk clamping portion (20) for the component (16), and a transition portion (24) which adjoins the clamping portion (20) in the axial direction, and a connecting portion (26) which adjoins the transition portion (24) in the axial direction and the diameter of which is larger than that of the clamping portion (20), characterized in that the connecting portion (26) has the shape of a portion of a cone and has at the outer end a diameter which is larger than the initial diameter of the envelope (12) before shrinking.
  2. The housing according to claim 1, characterized in that the component (16) is received within the housing (10) and in that the envelope (12) terminates approximately flush with the component (16) in the axial direction.
  3. The housing according to any of the preceding claims, characterized in that it comprises a coupling part (14) which is connected to the envelope (12) and has an obliquely extending coupling portion (15) which is inserted into or slipped on the connecting portion (26) and is firmly connected to the envelope (12).
  4. The housing according to claim 3, characterized in that the coupling part (14) is welded, soldered or bonded to the housing (10).
  5. The housing according to any of the preceding claims, characterized in that the component (16) is a ceramic substrate which is surrounded by a support mat (18).
  6. A method of producing a housing (10) for a component (16) of an exhaust system by means of the following steps:
    - a tubular envelope (12) is provided;
    - the component (16) is inserted into the envelope (12);
    - the envelope (12) is shrunk in a clamping portion (20) starting from an initial diameter (DA), the clamping portion terminating spaced apart from the ends of the envelope (12) as viewed in the axial direction, whereas the axial ends of the envelope (12) are not acted upon, so that the latter expand in the shape of a cone portion to a diameter at the outer end of the connecting portion (26), which is larger than the initial diameter (DA).
  7. The method according to claim 6, characterized in that a coupling part (14) is slipped on or inserted into the axial end of the envelope (12) without further working steps for influencing the diameter of the axial ends being carried out.
EP06791869A 2005-09-23 2006-09-06 Housing for a component of an emission system, and method for the production of such a housing Expired - Fee Related EP1941137B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005045535A DE102005045535A1 (en) 2005-09-23 2005-09-23 Housing for e.g. exhaust gas purifying device, has mantle including clamping section, and connection section attached in changeover section in axial direction, where connection section has diameter larger than that of clamping section
PCT/EP2006/008683 WO2007036286A1 (en) 2005-09-23 2006-09-06 Housing for a component of an emission system, and method for the production of such a housing

Publications (2)

Publication Number Publication Date
EP1941137A1 EP1941137A1 (en) 2008-07-09
EP1941137B1 true EP1941137B1 (en) 2009-06-17

Family

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Application Number Title Priority Date Filing Date
EP06791869A Expired - Fee Related EP1941137B1 (en) 2005-09-23 2006-09-06 Housing for a component of an emission system, and method for the production of such a housing

Country Status (7)

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US (1) US8092748B2 (en)
EP (1) EP1941137B1 (en)
KR (1) KR100989601B1 (en)
CN (1) CN101273190B (en)
DE (2) DE102005045535A1 (en)
ES (1) ES2327356T3 (en)
WO (1) WO2007036286A1 (en)

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* Cited by examiner, † Cited by third party
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WO2011115973A2 (en) * 2010-03-17 2011-09-22 Baldwin Filters, Inc. Fluid filter
WO2011115979A2 (en) 2010-03-17 2011-09-22 Baldwin Filters, Inc. Fluid filter
JP5912605B2 (en) * 2012-02-03 2016-04-27 本田技研工業株式会社 Exhaust muffler device
US9011782B2 (en) 2012-08-09 2015-04-21 Caterpillar Inc. After-treatment system
US9050559B2 (en) 2013-03-01 2015-06-09 Caterpillar Inc. System and method for accommodating aftertreatment bricks

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Publication number Priority date Publication date Assignee Title
US4155980A (en) * 1976-06-19 1979-05-22 Zeuna-Starker Kg Apparatus for catalytic purifying the effluent gases of internal combustion engines
FR2474120A1 (en) * 1979-12-20 1981-07-24 Citroen Sa IMPROVEMENTS ON UNIVERSAL JOINTS
US4347219A (en) * 1979-12-29 1982-08-31 Honda Giken Kogyo Kabushiki Kaisha Catalytic converter for exhaust-gas cleaning use and method of assembling same
US5118476A (en) * 1986-06-12 1992-06-02 Tennessee Gas Pipeline Company Catalytic converter and substrate support
CN2100489U (en) * 1988-06-25 1992-04-01 林隆村 Purifying exhaust pipe with the function of silencing
CN2174584Y (en) * 1993-04-20 1994-08-17 金泽桓 Liquid aspiration apparatus
US5829132A (en) * 1996-08-07 1998-11-03 Arvin Industries, Inc. Methods of assembling an exhaust processor
DE19711789C2 (en) * 1997-03-21 2000-05-25 Zeuna Staerker Kg Motor vehicle exhaust gas purification device and method for its production
US6591497B2 (en) 1998-08-27 2003-07-15 Delphi Technologies, Inc. Method of making converter housing size based upon substrate size
US7032312B2 (en) * 2002-07-16 2006-04-25 Calsonickansei North America, Inc. Catalytic converter and method for manufacture thereof
JP4549058B2 (en) * 2003-12-26 2010-09-22 株式会社三五 Method for manufacturing column holding device
DE102004037480A1 (en) * 2004-08-03 2006-03-02 Zeuna-Stärker GmbH & Co KG A vehicle exhaust gas purification device and method of manufacturing the same

Also Published As

Publication number Publication date
WO2007036286A1 (en) 2007-04-05
KR20080042161A (en) 2008-05-14
CN101273190A (en) 2008-09-24
US20090022634A1 (en) 2009-01-22
CN101273190B (en) 2010-12-15
DE502006004032D1 (en) 2009-07-30
KR100989601B1 (en) 2010-10-25
EP1941137A1 (en) 2008-07-09
US8092748B2 (en) 2012-01-10
ES2327356T3 (en) 2009-10-28
DE102005045535A1 (en) 2007-03-29

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