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EP3015671B1 - Exhaust gas treatment device - Google Patents

Exhaust gas treatment device Download PDF

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Publication number
EP3015671B1
EP3015671B1 EP15189479.7A EP15189479A EP3015671B1 EP 3015671 B1 EP3015671 B1 EP 3015671B1 EP 15189479 A EP15189479 A EP 15189479A EP 3015671 B1 EP3015671 B1 EP 3015671B1
Authority
EP
European Patent Office
Prior art keywords
carrier
exhaust gas
axial end
gas treatment
connection region
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.)
Active
Application number
EP15189479.7A
Other languages
German (de)
French (fr)
Other versions
EP3015671A1 (en
Inventor
Marcel Ferencak
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.)
Eberspaecher Exhaust Technology GmbH and Co KG
Original Assignee
Eberspaecher Exhaust Technology GmbH and Co KG
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.)
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Publication date
Application filed by Eberspaecher Exhaust Technology GmbH and Co KG filed Critical Eberspaecher Exhaust Technology GmbH and Co KG
Priority to EP16180383.8A priority Critical patent/EP3118431B1/en
Publication of EP3015671A1 publication Critical patent/EP3015671A1/en
Application granted granted Critical
Publication of EP3015671B1 publication Critical patent/EP3015671B1/en
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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
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/0217—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters the filtering elements having the form of hollow cylindrical bodies
    • 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
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1888—Construction facilitating manufacture, assembly, or disassembly the housing of the assembly consisting of two or more parts, e.g. two half-shells
    • 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
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/0211—Arrangements for mounting filtering elements in housing, e.g. with means for compensating thermal expansion or vibration
    • 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
    • F01N2350/00—Arrangements for fitting catalyst support or particle filter element in the housing
    • F01N2350/02—Fitting ceramic monoliths in a metallic 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
    • F01N2350/00—Arrangements for fitting catalyst support or particle filter element in the housing
    • F01N2350/02—Fitting ceramic monoliths in a metallic housing
    • F01N2350/04—Fitting ceramic monoliths in a metallic housing with means compensating thermal expansion
    • 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
    • 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
    • F01N2450/22—Methods or apparatus for fitting, inserting or repairing different elements by welding or brazing

Definitions

  • the present invention relates to an exhaust gas treatment arrangement according to the preamble of claim 1, which can be arranged, for example, in the exhaust gas flow path of an internal combustion engine of a motor vehicle to filter soot particles from the exhaust gas leaving an internal combustion engine or to subject the exhaust gases to a catalytic reaction.
  • Such an exhaust gas treatment device to be integrated into the exhaust gas flow path of an internal combustion engine is known from the JP 2003 176717 A is known and is constructed with a substantially cylindrical, for example, circular cylindrical, extending along a support longitudinal axis, tubular support.
  • This carrier is formed with two, for example, substantially identical carrier elements, generally also referred to as half-shells.
  • the carrier elements each have connecting portions extending from the first axial end region of the carrier body to be produced to the second axial end region of the carrier body and extending substantially parallel to the carrier longitudinal axis.
  • an exhaust gas treatment element designed, for example, as a soot particle filter element or catalytic converter element is firstly arranged in one of the carrier elements, wherein the exhaust gas treatment element is surrounded on its outer peripheral region by at least one layer of this fiber material firmly locking in the finished carrier body. Subsequently, the other carrier element is moved towards the carrier element already containing the exhaust gas treatment element in a direction of convergence, wherein the connecting sections of the two carrier elements are each arranged essentially in a plane orthogonal to the direction of movement of the merging movement.
  • an exhaust gas treatment arrangement in particular for an exhaust gas flow path of an internal combustion engine, comprising a tube-like carrier body extending along a carrier longitudinal axis with a first axial end region and an axial end region and at least one carried in the carrier body with intermediate storage of at least one fiber material layer
  • the exhaust treatment element wherein the support body comprises two support members interconnected in a first connection region and a second connection region, the first connection region and the second connection region extending from the first axial end region to the second axial end region, at least one connection region extending from the first axial end portion to the second axial end portion does not extend parallel to the carrier longitudinal axis.
  • connection areas By configuring at least one, preferably both, of the connection areas in such a way that they do not extend or extend substantially obliquely relative to the support longitudinal axis, during manufacture of the support body, ie when the two support elements move toward one another in the longitudinal direction of the support in a generally substantially orthogonal merge movement direction, such force is exerted on the fibrous material surrounding an exhaust treatment member, the fibers thereof are not drawn outwardly but are pressed inwardly and thus do not accumulate where the two support members in the two connection portions are in mutual contact to connect and connect with each other. This avoids machining operations for pressing the fibers inwardly before the two support members are moved towards each other or brought into mutual contact.
  • the first connection region extends from the first axial end region to the second axial end region relative to a reference plane containing the longitudinal axis of the support, and the second connection region extends from the first axial end region extends to the second axial end region with respect to the reference plane to the first connection region in opposite directions employed.
  • the carrier body is substantially cylindrical, preferably with a round, for example circular or elliptical, peripheral contour, and that the first connection region and the second connection region extend helically from the first axial end region to the second axial end region in the same direction around the circumference of the carrier body.
  • a stable connection of the two carrier elements with one another can be achieved, for example, in a simple manner in that in the first connection region and in the second connection region, the first carrier element and the second carrier element each comprise a connecting section extending substantially radially outward relative to the carrier longitudinal axis.
  • the first carrier element and the second carrier element are designed as sheet metal forming parts that are preferably identical to one another. Furthermore, a connection of the two carrier elements, in particular an exhaust gas-tight connection, can be obtained with one another in that they are connected to one another in the first connection region and in the second connection region by welding.
  • At least one exhaust gas treatment element can be designed as a soot particle filter element. Alternatively or additionally, at least one exhaust gas treatment element may be formed as a catalyst element.
  • the Fig. 1 and 2 show an embodiment of an exhaust treatment system, generally designated 10.
  • the exhaust gas treatment arrangement 10 comprises a carrier body 12 which, in the example shown, is formed with two support elements 14, 16 constructed essentially identically to one another.
  • the two carrier elements 14, 16, which are generally also referred to as half-shells, are preferably provided as sheet metal formed parts and together form a carrier body 12 with a substantially tubular, cylindrical shape, for example with a circular or elliptical peripheral contour.
  • the carrier body 12 extends along a carrier longitudinal axis L, which in the Fig. 1 is substantially orthogonal to the drawing plane and in the Fig. 2 lies in the drawing plane.
  • the carrier body 12 has a first axial end region 18 and a second axial end region 20. In these axial end regions 18, 20, the carrier body 12 can be connected to further line regions of an exhaust gas flow path of an internal combustion engine.
  • the two support members 12, 14 are fixedly connected to each other.
  • the first carrier element 14 has a first connecting section 26, which extends essentially radially outward relative to the longitudinal axis L, for the first connecting region 22 and a second connecting section 28 for the second connecting region 24.
  • the second carrier element 16 for the first connection region 22 has a third connection section 30 extending essentially radially outward with respect to the longitudinal axis L, and a fourth connection section 32 for the second connection region 24.
  • the first connecting portion 26 of the first support member 14 abuts the third connecting portion 30 of the second support member 16 in the assembled state.
  • the second connecting portion 28 of the first support member 14 abuts the fourth connecting portion 32 of the second support member 16.
  • the two support elements 14, 16 are preferably fixedly connected to each other by welding.
  • the two connecting portions 22, 24 and thus also the connecting portions 26, 30 and 28, 32 do not extend parallel to the body longitudinal axis L.
  • a reference plane E containing the carrier longitudinal axis L which are intersected, for example, by the two connecting regions 22, 24 in their longitudinal center region, the two connecting regions 22, 24 are arranged, that is to say they are angled.
  • the two connection regions 22, 24 are set in opposite directions with respect to this reference plane E, so that due to the substantially circular Circumferential contour of the carrier body 12 results in a substantially helical and co-directional extension of the two connecting portions 22, 24 along the circumference of the carrier body 12.
  • the oblique position of the two connecting regions 22, 24 ensures that in the manufacturing process of the exhaust treatment arrangement 10 when the two carrier elements 14, 16 are moved together in a direction of assembly movement Z fibers of the exhaust material treatment element 34, which is also shown in sections, generally also referred to as a bearing mat, for example, as a fabric-like material or non-woven ceramic material, do not accumulate in the mutual joint portion of the connecting portions 26 and 30 or 28 and 32.
  • two or more exhaust gas treatment elements could be arranged in a carrier body.
  • the carrier body could basically also have a contour tapering in the direction of the body longitudinal axis L or a curved shape with a correspondingly curved body longitudinal axis.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Exhaust Gas After Treatment (AREA)

Description

Die vorliegende Erfindung betrifft eine Abgasbehandlungsanordnung gemäß dem Oberbegriff des Anspruchs 1, die beispielsweise im Abgasströmungsweg einer Brennkraftmaschine eines Kraftfahrzeugs angeordnet werden kann, um aus den eine Brennkraftmaschine verlassenen Abgasen Rußpartikel herauszufiltern bzw. die Abgase einer katalytischen Reaktion zu unterziehen.The present invention relates to an exhaust gas treatment arrangement according to the preamble of claim 1, which can be arranged, for example, in the exhaust gas flow path of an internal combustion engine of a motor vehicle to filter soot particles from the exhaust gas leaving an internal combustion engine or to subject the exhaust gases to a catalytic reaction.

Eine derartige in den Abgasströmungsweg einer Brennkraftmaschine zu integrierende Abgasbehandlungsanordnung ist aus der JP 2003 176717 A bekannt und ist mit einem im Wesentlichen zylindrisch, beispielsweise kreiszylindrisch ausgebildeten, sich entlang einer Trägerlängsachse erstreckenden, rohrartigen Träger aufgebaut. Dieser Träger ist mit zwei z.B. im Wesentlichen identischen Trägerelementen, allgemein auch als Halbschalen bezeichnet, ausgebildet. Die Trägerelemente weisen jeweilige vom ersten axialen Endbereich des herzustellenden Trägerkörpers zum zweiten axialen Endbereich desselben sich im Wesentlichen parallel zur Trägerlängsachse erstreckende Verbindungsabschnitte auf.Such an exhaust gas treatment device to be integrated into the exhaust gas flow path of an internal combustion engine is known from the JP 2003 176717 A is known and is constructed with a substantially cylindrical, for example, circular cylindrical, extending along a support longitudinal axis, tubular support. This carrier is formed with two, for example, substantially identical carrier elements, generally also referred to as half-shells. The carrier elements each have connecting portions extending from the first axial end region of the carrier body to be produced to the second axial end region of the carrier body and extending substantially parallel to the carrier longitudinal axis.

Beim Zusammensetzen eines Trägerkörpers einer so aufgebauten Abgasbehandlungsanordnung wird zunächst in einem der Trägerelemente ein beispielsweise als Rußpartikelfilterelement oder als Katalysatorelement ausgebildetes Abgasbehandlungselement angeordnet, wobei das Abgasbehandlungselement an seinem Außenumfangsbereich von wenigstens einer Lage von dieses im fertiggestellten Trägerkörper fest arretierende Fasermaterial umgeben ist. Nachfolgend wird das andere Trägerelement auf das das Abgasbehandlungselement bereits enthaltende Trägerelement in einer Zusammenführbewegungsrichtung zu bewegt, wobei die Verbindungsabschnitte der beiden Trägerelemente jeweils im Wesentlichen in einer zur Zusammenführbewegungsrichtung orthogonal stehenden Ebene angeordnet sind. Am Ende der Aufeinanderzubewegung der beiden Trägerelemente kommen deren Verbindungsabschnitte in gegenseitigen Kontakt, so dass mit den jeweils sich berührenden Verbindungsabschnitten zwei Verbindungsbereiche gebildet sind, in welchen die beiden das von Fasermaterial umgebene Abgasbehandlungselement zwischen sich einschließenden und festhaltenden Trägerelemente beispielsweise durch Verschweißung miteinander verbunden werden können.When assembling a carrier body of an exhaust treatment arrangement constructed in this way, an exhaust gas treatment element designed, for example, as a soot particle filter element or catalytic converter element is firstly arranged in one of the carrier elements, wherein the exhaust gas treatment element is surrounded on its outer peripheral region by at least one layer of this fiber material firmly locking in the finished carrier body. Subsequently, the other carrier element is moved towards the carrier element already containing the exhaust gas treatment element in a direction of convergence, wherein the connecting sections of the two carrier elements are each arranged essentially in a plane orthogonal to the direction of movement of the merging movement. At the end of the Aufeinanderzubewegung of the two support members whose connecting portions come into mutual contact, so that with the respective contacting connecting portions two connecting portions are formed, in which the two surrounded by fiber material exhaust treatment between enclosing and holding carrier elements can be connected to each other for example by welding.

Bei Herstellung einer Abgasbehandlungsanordnung in der vorangehend beschriebenen Art und Weise besteht das Problem, dass Fasern des das Abgasbehandlungselement umkleidenden Fasermaterials sich in den Bereich zwischen zwei in Kontakt miteinander gebrachten Verbindungsabschnitten hinein bewegen bzw. dort eingeklemmt werden. Da dies eine stabile und insbesondere auch abgasdichte Verbindung der beiden Trägerelemente erschwert bzw. verhindert, müssen vor dem endgültigen Aufeinanderzubewegung im Allgemeinen manuell die Fasern des Fasermaterials so nach innen gepresst werden, dass sie nicht in den Stoßbereich der miteinander zu verbindenden Verbindungsabschnitte der beiden Trägerelemente ragen.When manufacturing an exhaust gas treatment arrangement in the manner described above, there is the problem that fibers of the fiber material coating the exhaust gas treatment element move into or become trapped in the region between two connecting sections brought into contact with one another. Since this makes a stable and in particular also gas-tight connection of the two carrier elements difficult or impossible, the fibers of the fiber material must generally be pressed inwards in such a way that they do not protrude into the joint area of the connecting sections of the two carrier elements to be joined together before the final succession movement ,

Es ist die Aufgabe der vorliegenden Erfindung, eine Abgasbehandlungsanordnung, insbesondere für einen Abgasströmungsweg einer Brennkraftmaschine, vorzusehen, bei welcher die Ansammlung von Fasern von ein Abgasbehandlungselement umkleidendem Fasermaterial im Kontaktbereich zweier Trägerelemente vermieden ist.It is the object of the present invention to provide an exhaust gas treatment arrangement, in particular for an exhaust gas flow path of an internal combustion engine, in which the accumulation of fibers from an exhaust gas treatment element enclosing fiber material in the contact region of two support elements is avoided.

Gemäß der vorliegenden Erfindung wird diese Aufgabe gelöst durch eine Abgasbehandlungsanordnung, insbesondere für einen Abgasströmungsweg einer Brennkraftmaschine, umfassend einen entlang einer Trägerlängsachse sich erstreckenden, rohrartigen Trägerkörper mit einem ersten axialen Endbereich und einem axialen Endbereich und wenigstens ein in dem Trägerkörper unter Zwischenlagerung wenigstens einer Fasermateriallage getragenes Abgasbehandlungselement, wobei der Trägerkörper zwei in einem ersten Verbindungsbereich und einem zweiten Verbindungsbereich miteinander verbundene Trägerelemente umfasst, wobei der erste Verbindungsbereich und der zweite Verbindungsbereich sich vom ersten axialen Endbereich zum zweiten axialen Endbereich erstrecken, wobei wenigstens ein Verbindungsbereich sich vom ersten axialen Endbereich zum zweiten axialen Endbereich nicht parallel zur Trägerlängsachse erstreckt.According to the present invention, this object is achieved by an exhaust gas treatment arrangement, in particular for an exhaust gas flow path of an internal combustion engine, comprising a tube-like carrier body extending along a carrier longitudinal axis with a first axial end region and an axial end region and at least one carried in the carrier body with intermediate storage of at least one fiber material layer The exhaust treatment element, wherein the support body comprises two support members interconnected in a first connection region and a second connection region, the first connection region and the second connection region extending from the first axial end region to the second axial end region, at least one connection region extending from the first axial end portion to the second axial end portion does not extend parallel to the carrier longitudinal axis.

Durch das Ausgestalten wenigstens eines, vorzugsweise beider Verbindungsbereiche derart, dass dieser bzw. diese sich nicht parallel zur Trägerlängsachse, sich also im Wesentlichen windschief bezüglich dieser erstreckt bzw. erstrecken, wird beim Herstellen des Trägerkörpers, also beim Aufeinanderzubewegen der beiden Trägerelemente in einer zur Trägerlängsachse im Allgemeinen im Wesentlichen orthogonalen Zusammenführbewegungsrichtung, eine derartige Kraft auf das ein Abgasbehandlungselement umhüllende Fasermaterial ausgeübt, das Fasern desselben nicht nach außen gezogen werden, sondern nach innen gepresst werden und sich somit nicht dort ansammeln, wo die beiden Trägerelemente in den beiden Verbindungsbereichen in gegenseitigen Kontakt treten und miteinander zu verbinden sind. Dies vermeidet Bearbeitungsvorgänge zum Pressen der Fasern nach innen, bevor die beiden Trägerelemente aufeinander zubewegt bzw. in gegenseitigen Kontakt gebracht werden.By configuring at least one, preferably both, of the connection areas in such a way that they do not extend or extend substantially obliquely relative to the support longitudinal axis, during manufacture of the support body, ie when the two support elements move toward one another in the longitudinal direction of the support in a generally substantially orthogonal merge movement direction, such force is exerted on the fibrous material surrounding an exhaust treatment member, the fibers thereof are not drawn outwardly but are pressed inwardly and thus do not accumulate where the two support members in the two connection portions are in mutual contact to connect and connect with each other. This avoids machining operations for pressing the fibers inwardly before the two support members are moved towards each other or brought into mutual contact.

Bei einer aufgrund des besonders einfachen und somit auch kostengünstig herzustellenden Aufbaus besonders vorteilhaften Variante wird vorgeschlagen, dass der erste Verbindungsbereich sich vom ersten axialen Endbereich zum zweiten axialen Endbereich bezüglich einer die Trägerlängsachse enthaltenden Referenzebene angestellt erstreckt, und dass der zweite Verbindungsbereich sich von ersten axialen Endbereich zum zweiten axialen Endbereich bezüglich der Referenzebene zum ersten Verbindungsbereich gegensinnig angestellt erstreckt.In a particularly advantageous variant due to the particularly simple and thus cost-effective construction, it is proposed that the first connection region extends from the first axial end region to the second axial end region relative to a reference plane containing the longitudinal axis of the support, and the second connection region extends from the first axial end region extends to the second axial end region with respect to the reference plane to the first connection region in opposite directions employed.

Um die Integration einer erfindungsgemäßen Abgasbehandlungsanordnung in einen Abgasströmungsweg einer Brennkraftmaschine in einfacher Weise realisieren zu können, wird vorgeschlagen, dass der Trägerkörper im Wesentlichen zylindrisch, vorzugsweise mit runder, beispielsweise kreisrunder oder elliptischer, Umfangskontur ausgebildet ist, und dass der erste Verbindungsbereich und der zweite Verbindungsbereich sich vom ersten axialen Endbereich zum zweiten axialen Endbereich gleichsinnig schraubenartig um den Umfang des Trägerkörpers erstrecken.In order to be able to realize the integration of an exhaust gas treatment arrangement according to the invention in an exhaust gas flow path of an internal combustion engine in a simple manner, it is proposed that the carrier body is substantially cylindrical, preferably with a round, for example circular or elliptical, peripheral contour, and that the first connection region and the second connection region extend helically from the first axial end region to the second axial end region in the same direction around the circumference of the carrier body.

Eine stabile Verbindung der beiden Trägerelemente miteinander kann beispielsweise dadurch in einfacher Weise erlangt werden, dass im ersten Verbindungsbereich und im zweiten Verbindungsbereich das erste Trägerelement und das zweite Trägerelement jeweils einen bezüglich der Trägerlängsachse sich im Wesentlichen nach radial außen erstreckenden Verbindungsabschnitt umfassen.A stable connection of the two carrier elements with one another can be achieved, for example, in a simple manner in that in the first connection region and in the second connection region, the first carrier element and the second carrier element each comprise a connecting section extending substantially radially outward relative to the carrier longitudinal axis.

Zur Realisierung eines einfachen Aufbaus wird vorgeschlagen, dass das erste Trägerelement und das zweite Trägerelement als vorzugsweise zueinander identische Blechumformteile ausgebildet sind. Ferner kann eine insbesondere abgasdichte Verbindung der beiden Trägerelemente miteinander dadurch erlangt werden, dass diese im ersten Verbindungsbereich und im zweiten Verbindungsbereich durch Verschweißung miteinander verbunden sind.In order to realize a simple structure, it is proposed that the first carrier element and the second carrier element are designed as sheet metal forming parts that are preferably identical to one another. Furthermore, a connection of the two carrier elements, in particular an exhaust gas-tight connection, can be obtained with one another in that they are connected to one another in the first connection region and in the second connection region by welding.

Wenigstens ein Abgasbehandlungselement kann als Rußpartikelfilterelement ausgebildet sein. Alternativ oder zusätzlich kann wenigstens ein Abgasbehandlungselement als Katalysatorelement ausgebildet sein.At least one exhaust gas treatment element can be designed as a soot particle filter element. Alternatively or additionally, at least one exhaust gas treatment element may be formed as a catalyst element.

Die vorliegende Erfindung wird nachfolgend mit Bezug auf die beiliegenden Figuren detailliert beschrieben. Es zeigt:

Fig. 1
eine Axialansicht einer Abgasbehandlungsanordnung mit einem rohrartigen Trägerkörper und einem darin angeordneten und von Fasermaterial umgebenen Abgasbehandlungselement;
Fig. 2
eine Seitenansicht der Abgasbehandlungsanordnung der Fig. 1 in Blickrichtung II in Fig. 1.
The present invention will be described below in detail with reference to the accompanying drawings. It shows:
Fig. 1
an axial view of an exhaust treatment device with a tubular carrier body and disposed therein and surrounded by fiber material exhaust treatment element;
Fig. 2
a side view of the exhaust treatment arrangement of Fig. 1 in viewing direction II in Fig. 1 ,

Die Fig. 1 und 2 zeigen eine Ausgestaltungsform einer allgemein mit 10 bezeichneten Abgasbehandlungsanordnung. Die Abgasbehandlungsanordnung 10 umfasst einen Trägerkörper 12, der im dargestellten Beispiel mit zwei zueinander im Wesentlichen identisch aufgebauten Trägerelementen 14, 16 ausgebildet ist. Die beiden allgemein auch als Halbschalen bezeichneten Trägerelemente 14, 16 sind vorzugsweise als Blechumformteile bereitgestellt und bilden zusammen einen Trägerkörper 12 mit im Wesentlichen rohrartiger, zylindrischer Gestalt, beispielsweise mit kreisrunder oder elliptischer Umfangskontur.The Fig. 1 and 2 show an embodiment of an exhaust treatment system, generally designated 10. The exhaust gas treatment arrangement 10 comprises a carrier body 12 which, in the example shown, is formed with two support elements 14, 16 constructed essentially identically to one another. The two carrier elements 14, 16, which are generally also referred to as half-shells, are preferably provided as sheet metal formed parts and together form a carrier body 12 with a substantially tubular, cylindrical shape, for example with a circular or elliptical peripheral contour.

Der Trägerkörper 12 erstreckt sich entlang einer Trägerlängsachse L, welche in der Fig. 1 im Wesentlichen orthogonal zur Zeichenebene steht und in der Fig. 2 in der Zeichenebene liegt. Der Trägerkörper 12 weist einen ersten axialen Endbereich 18 und einen zweiten axialen Endbereich 20 auf. In diesen axialen Endbereichen 18, 20 kann der Trägerkörper 12 mit weiteren Leitungsbereichen eines Abgasströmungswegs einer Brennkraftmaschine verbunden werden.The carrier body 12 extends along a carrier longitudinal axis L, which in the Fig. 1 is substantially orthogonal to the drawing plane and in the Fig. 2 lies in the drawing plane. The carrier body 12 has a first axial end region 18 and a second axial end region 20. In these axial end regions 18, 20, the carrier body 12 can be connected to further line regions of an exhaust gas flow path of an internal combustion engine.

An zwei bezüglich der Körperlängsachse L einander im Wesentlichen diametral gegenüberliegenden Verbindungsbereichen 22, 24 sind die beiden Trägerelemente 12, 14 miteinander fest verbunden. In diesen Verbindungsbereichen 22, 24 weist das erste Trägerelement 14 einen bezüglich der Längsachse L sich im Wesentlichen nach radial außen erstreckenden ersten Verbindungsabschnitt 26 für den ersten Verbindungsbereich 22 sowie einen zweiten Verbindungsabschnitt 28 für den zweiten Verbindungsbereich 24 auf. In entsprechender Weise weist das zweite Trägerelement 16 für den ersten Verbindungsbereich 22 einen bezüglich der Längsachse L sich im Wesentlichen nach radial außen erstreckenden dritten Verbindungsabschnitt 30 und für den zweiten Verbindungsbereich 24 einen vierten Verbindungsabschnitt 32 auf. Der erste Verbindungsabschnitt 26 des ersten Trägerelements 14 liegt im Zusammenbauzustand am dritten Verbindungsabschnitt 30 des zweiten Trägerelements 16 an. Entsprechend liegt der zweite Verbindungsabschnitt 28 des ersten Trägerelements 14 am vierten Verbindungsabschnitt 32 des zweiten Trägerelements 16 an. Im Bereich dieser vorzugsweise flächig aneinander anliegenden Verbindungsabschnitte 26, 30 bzw. 28, 32 sind die beiden Trägerelemente 14, 16 miteinander vorzugsweise durch Verschweißung fest verbunden.At two with respect to the body longitudinal axis L substantially diametrically opposite connecting portions 22, 24, the two support members 12, 14 are fixedly connected to each other. In these connecting regions 22, 24, the first carrier element 14 has a first connecting section 26, which extends essentially radially outward relative to the longitudinal axis L, for the first connecting region 22 and a second connecting section 28 for the second connecting region 24. In a corresponding manner, the second carrier element 16 for the first connection region 22 has a third connection section 30 extending essentially radially outward with respect to the longitudinal axis L, and a fourth connection section 32 for the second connection region 24. The first connecting portion 26 of the first support member 14 abuts the third connecting portion 30 of the second support member 16 in the assembled state. Accordingly, the second connecting portion 28 of the first support member 14 abuts the fourth connecting portion 32 of the second support member 16. In the region of these preferably flat abutting connecting portions 26, 30 and 28, 32, the two support elements 14, 16 are preferably fixedly connected to each other by welding.

Man erkennt in den Fig. 1 und 2 deutlich, dass die beiden Verbindungsbereiche 22, 24 und damit auch die Verbindungsabschnitte 26, 30 bzw. 28, 32 sich zur Körperlängsachse L nicht parallel erstrecken. Die beiden Verbindungsbereiche 22, 24 sind bezüglich einer die Trägerlängssachse L enthaltenden Referenzebene E, welche beispielsweise von den beiden Verbindungsbereichen 22, 24 in deren Längenmittenbereich durchschnitten wird, angestellt, also angewinkelt angeordnet. Die beiden Verbindungsbereiche 22, 24 sind bezüglich dieser Referenzebene E gegensinnig angestellt, so dass sich aufgrund der im Wesentlichen kreisrunden Umfangskontur des Trägerkörpers 12 eine im Wesentlichen schraubenartige und gleichsinnige Erstreckung der beiden Verbindungsbereiche 22, 24 entlang des Umfangs des Trägerkörpers 12 ergibt.One recognizes in the Fig. 1 and 2 clearly that the two connecting portions 22, 24 and thus also the connecting portions 26, 30 and 28, 32 do not extend parallel to the body longitudinal axis L. With regard to a reference plane E containing the carrier longitudinal axis L, which are intersected, for example, by the two connecting regions 22, 24 in their longitudinal center region, the two connecting regions 22, 24 are arranged, that is to say they are angled. The two connection regions 22, 24 are set in opposite directions with respect to this reference plane E, so that due to the substantially circular Circumferential contour of the carrier body 12 results in a substantially helical and co-directional extension of the two connecting portions 22, 24 along the circumference of the carrier body 12.

Insbesondere aufgrund der im Wesentlichen diametral gegenüberliegenden Anordnung der beiden Verbindungsbereiche 22, 24 wird es möglich, die beiden Trägerelemente 14, 16 zueinander im Wesentlichen identisch auszugestalten. Dies führt zu vergleichsweise niedrigen Herstellungskosten. Die Schrägstellung der beiden Verbindungsbereiche 22, 24 sorgt dafür, dass im Herstellungsprozess der Abgasbehandlungsanordnung 10 beim Aufeinanderzubewegen der beiden Trägerelemente 14, 16 in einer Zusammenführbewegungsrichtung Z Fasern des das nur abschnittsweise dargestellte Abgasbehandlungselement 34 umkleidenden, allgemein auch als Lagermatte bezeichneten Fasermaterials dieses beispielsweise bereitgestellt als gewebeartiges oder vliesartiges Keramikmaterial, sich nicht im gegenseitigen Stoßbereich der Verbindungsabschnitte 26 und 30 bzw. 28 und 32 ansammeln. Vielmehr wird aufgrund der Schrägstellung der Verbindungsbereiche 22, 24 dafür gesorgt, dass die Fasern beim Aufeinanderzubewegen der Trägerelemente 14, 16 in der Zusammenführbewegungsrichtung Z nach innen gepresst werden. Manuelle Nachbearbeitungsvorgänge zum Entfernen von Fasern aus dem Stoßbereich der beiden Trägerelemente 14, 16 vor dem Verschweißen derselben können somit entfallen.In particular, due to the substantially diametrically opposite arrangement of the two connecting regions 22, 24, it becomes possible to configure the two carrier elements 14, 16 substantially identical to one another. This leads to comparatively low production costs. The oblique position of the two connecting regions 22, 24 ensures that in the manufacturing process of the exhaust treatment arrangement 10 when the two carrier elements 14, 16 are moved together in a direction of assembly movement Z fibers of the exhaust material treatment element 34, which is also shown in sections, generally also referred to as a bearing mat, for example, as a fabric-like material or non-woven ceramic material, do not accumulate in the mutual joint portion of the connecting portions 26 and 30 or 28 and 32. On the contrary, due to the inclination of the connecting regions 22, 24, it is ensured that the fibers are pressed inwards when the carrier elements 14, 16 are moved toward one another in the direction of the movement of the joining Z. Manual post-processing operations for removing fibers from the joint area of the two support elements 14, 16 prior to welding thereof can thus be dispensed with.

Es ist abschließend darauf hinzuweisen, dass selbstverständlich die Prinzipien der vorliegenden Erfindung auch bei anderer Ausgestaltung der Abgasbehandlungsanordnung Anwendung finden können. Beispielsweise könnten in einem Trägerkörper zwei oder mehrere Abgasbehandlungselemente angeordnet sein. Der Trägerkörper könnte grundsätzlich auch eine in Richtung der Körperlängsachse L sich verjüngende Kontur bzw. eine gekrümmte Gestalt mit entsprechend gekrümmter Körperlängsachse aufweisen.Finally, it should be pointed out that, of course, the principles of the present invention can also be applied to other embodiments of the exhaust gas treatment arrangement. For example, two or more exhaust gas treatment elements could be arranged in a carrier body. The carrier body could basically also have a contour tapering in the direction of the body longitudinal axis L or a curved shape with a correspondingly curved body longitudinal axis.

Claims (6)

  1. Exhaust gas treatment arrangement, in particular for an exhaust gas flow path of a combustion engine, comprising a tubular carrier body (12) extending along a carrier longitudinal axis (L) with a first axial end region (18) and a second axial end region (20) and at least one exhaust gas treatment element (34) carried in said carrier body (12) with an intermediate positioning of at least one fiber material layer (36), wherein said carrier body (12) comprises carrier elements (14, 16) interconnected in a first connection region (22) and a second connection region (24), wherein the first connection region (22) and the second connection region (24) extend from the first axial end region (18) to the second axial end region (20), characterized in that at least one connection region (22, 24) extends from the first axial end region (18) to the second axial end region (20) not parallel to the carrier longitudinal axis (L).
  2. Exhaust gas treatment arrangement according to claim 1,
    characterized in that the first connection region (22) extends from the first axial end region (18) to the second axial end region (20) in an angled manner in relation to a reference plane (E) comprising said carrier longitudinal axis (L) and in that the second connection region (24) extends from the first axial end region (18) to the second axial end region (20) in an oppositely angled manner in relation to a reference plane (E).
  3. Exhaust gas treatment arrangement according to claim 1 or 2,
    characterized in that the carrier body (12) is substantially cylindrical, preferably with a round circumferential perimeter and in that the first connection region (22) and the second connection region (24) extend helically in the same direction around the circumference of said carrier body (12).
  4. Exhaust gas treatment arrangement according to claim 1 to 3,
    characterized in that in the first connection region (22) and in the second connection region (24) the first carrier element (14) and the second carrier element (16) each comprise a connection section (26, 28, 30, 32) extending substantially in a radial outward direction in relation to the carrier longitudinal axis.
  5. Exhaust gas treatment arrangement according to claim 1 to 4,
    characterized in that the first carrier element (14) and the second carrier element (16) are adapted as sheet formed parts which are preferably substantially identical,
    or/and
    in that the first carrier element (14) and the second carrier element (16) are connected by welding in the first connection region (22) and in the second connection region (24).
  6. Exhaust gas treatment arrangement according to one of claims 1 to 5,
    characterized in that at least one exhaust gas treatment element (34) is adapted as a soot particle filter element,
    or/and
    in that at least one exhaust gas treatment element (34) is adapted as a catalyst element.
EP15189479.7A 2014-10-27 2015-10-13 Exhaust gas treatment device Active EP3015671B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP16180383.8A EP3118431B1 (en) 2014-10-27 2015-10-13 Method for manufacturing an exhaust gas treatment device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014221828.4A DE102014221828A1 (en) 2014-10-27 2014-10-27 Exhaust treatment arrangement, in particular for an exhaust gas flow path of an internal combustion engine and method for producing an exhaust gas treatment arrangement

Related Child Applications (2)

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EP16180383.8A Division-Into EP3118431B1 (en) 2014-10-27 2015-10-13 Method for manufacturing an exhaust gas treatment device
EP16180383.8A Division EP3118431B1 (en) 2014-10-27 2015-10-13 Method for manufacturing an exhaust gas treatment device

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EP3015671A1 EP3015671A1 (en) 2016-05-04
EP3015671B1 true EP3015671B1 (en) 2017-01-25

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US (1) US9822680B2 (en)
EP (2) EP3118431B1 (en)
JP (1) JP6174097B2 (en)
CN (1) CN105545427B (en)
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JP2002533603A (en) * 1998-12-18 2002-10-08 コーニング インコーポレイテッド Catalytic converter used for internal combustion engine and method of manufacturing the same
WO2000039437A1 (en) * 1998-12-28 2000-07-06 Corning Incorporated A converter for use in the treatment of gases
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Also Published As

Publication number Publication date
CN105545427B (en) 2018-11-13
US9822680B2 (en) 2017-11-21
US20160115834A1 (en) 2016-04-28
DE102014221828A1 (en) 2016-04-28
EP3015671A1 (en) 2016-05-04
EP3118431A1 (en) 2017-01-18
JP6174097B2 (en) 2017-08-02
EP3118431B1 (en) 2018-03-07
JP2016084816A (en) 2016-05-19
CN105545427A (en) 2016-05-04

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