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DE102007038606A1 - Device for treatment of exhaust gases of internal combustion engines comprises carrier element, bearing mat and housing, with carrier element provided with temperature resistant protrusions - Google Patents

Device for treatment of exhaust gases of internal combustion engines comprises carrier element, bearing mat and housing, with carrier element provided with temperature resistant protrusions Download PDF

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Publication number
DE102007038606A1
DE102007038606A1 DE102007038606A DE102007038606A DE102007038606A1 DE 102007038606 A1 DE102007038606 A1 DE 102007038606A1 DE 102007038606 A DE102007038606 A DE 102007038606A DE 102007038606 A DE102007038606 A DE 102007038606A DE 102007038606 A1 DE102007038606 A1 DE 102007038606A1
Authority
DE
Germany
Prior art keywords
carrier element
housing
elevations
carrier body
exhaust gases
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.)
Withdrawn
Application number
DE102007038606A
Other languages
German (de)
Inventor
Andreas Steigert
Thomas Weidner
Bernd Fuhrmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tenneco GmbH
Original Assignee
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 DE102007038606A priority Critical patent/DE102007038606A1/en
Publication of DE102007038606A1 publication Critical patent/DE102007038606A1/en
Withdrawn legal-status Critical Current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
    • 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
    • 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
    • F01N2350/04—Fitting ceramic monoliths in a metallic housing with means compensating thermal expansion
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

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

Abstract

Gegenstand der Erfindung sind keramische Trägerkörper für die Nachbehandlung der Abgase von Verbrennungsmotoren. Der Mantel des Trägerkörpers (1) trägt nachträglich aufgebrachte, temperaturbeständige Erhöhungen (4), die die Lagermatte (2) gegen eine Verschiebung fixieren.The invention relates to ceramic carrier body for the aftertreatment of the exhaust gases of internal combustion engines. The jacket of the carrier body (1) carries subsequently applied, temperature-resistant elevations (4), which fix the bearing mat (2) against displacement.

Description

Die Erfindung betrifft Vorrichtungen zur Nachbehandlung der Abgase von Verbrennungsmotoren gemäß dem Oberbegriff des Anspruchs 1.The The invention relates to devices for the aftertreatment of the exhaust gases of Internal combustion engines according to the preamble of claim 1.

In Abgaskatalysatoren oder Rußpartikelfiltern, die einen keramischen Trägerkörper verwenden, wird dieser mit Hilfe einer Lagermatte im Gehäuse gelagert. Diese Lagermatte hat die Aufgabe, die unterschiedlichen Wärmedehnungen von Keramik und Metall, bedingt durch die deutlich unterschiedlichen Ausdehnungskoeffizienten, auszugleichen. Als Lagermatten werden spezielle Materialien verwendet, die sich beim Erwärmen ausdehnen.In Catalytic converters or soot particle filters, which use a ceramic carrier body, this is stored by means of a bearing mat in the housing. This storage mat has the task of varying the thermal expansions of ceramics and Metal, due to the significantly different expansion coefficients, compensate. As bearing mats special materials are used when warming up expand.

Gleichwohl ist in der Praxis immer wieder zu beobachten, dass sich der keramische Trägerkörper und/oder die Lagermatte unter der Wirkung der pulsierenden Abgase im Gehäuse verschieben. Das ist unbefriedigend. Es wurde daher versucht, diese Bewegungen durch endständige Ringe aus Draht oder Blech zu verhindern. Abgesehen davon, dass diese zusätzlichen Maßnahmen einen zusätzlichen Aufwand darstellen, waren sie in der Praxis auch nicht immer erfolgreich.nevertheless is in practice again and again observed that the ceramic Carrier body and / or Move the bearing mat in the housing under the effect of the pulsating exhaust gases. That is unsatisfactory. It was therefore attempted these movements through terminal To prevent rings of wire or sheet metal. Apart from that these extra activities An additional In practice, they were not always successful.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, Vorrichtungen der eingangs genannten Art derart weiterzubilden, dass Bewegungen von Trägerkörper und/oder Lagermatte relativ zu einander bzw. zum Gehäuse sicher verhindert werden können.Of the present invention is based on the object, devices of the type mentioned in such a way that movements of carrier body and / or Bearing mat relative to each other or to the housing can be reliably prevented can.

Diese Aufgabe wird gelöst durch Vorrichtungen mit den Merkmalen des Anspruchs 1.These Task is solved by devices having the features of claim 1.

Dank der erfindungsgemäßen Erhöhungen wird die ansonsten glatte Mantelfläche des keramischen Trägerkörpers so weit verändert, dass es zu einer kraft- und/oder formschlüssigen Verbindung zwischen Trägerkörper und Lagermatte kommt. Dadurch sind Relativverschiebungen der beiden ausgeschlossen.thanks the elevations of the invention is the otherwise smooth lateral surface of the ceramic carrier body so far changed, that it is a force and / or positive connection between Carrier body and Storage mat comes. As a result, relative displacements of the two locked out.

Vorteilhafterweise bestehen diese Erhöhungen aus eingebrannter Keramik. Diese können entweder schon auf den grünen Formling oder nachträglich auf den bereits gebrannten Formling aufgebracht werden, vorzugsweise unter Verwendung von Schablonen.advantageously, These increases exist from baked ceramic. These can either already be on the green Molding or subsequently be applied to the already fired molding, preferably using templates.

Gemäß einer ersten Ausgestaltung der Erfindung sind diese Erhöhungen ringförmig. Dabei empfehlen sich insbesondere zwei parallele Ringe, zwischen denen die Lagermatte unbeweglich fixiert und vor den Pulsationen geschützt ist.According to one first embodiment of the invention, these elevations are annular. there In particular, two parallel rings are recommended, between which the bearing mat is immovably fixed and protected from the pulsations.

Gemäß einer alternativen Ausgestaltung dazu sind die Erhöhungen punktförmig.According to one alternative embodiment, the elevations are punctiform.

In diesem Fall empfiehlt es sich, in die Lagermatte Aussparungen einzuarbeiten, die mit den Erhöhungen korrespondieren. Auch dadurch wird erreicht, dass Trägerkörper und Lagermatte keine Relativbewegungen mehr zueinander ausführen können.In In this case, it is advisable to incorporate recesses in the bearing mat, the ones with the elevations correspond. This also ensures that carrier body and Bearing mat no relative movements can perform more to each other.

Um auch eine Relativbewegung zwischen Gehäuse und Lagermatte bzw. Trägerkörper ausschließen zu können, kann gemäß einer Weiterbildung der Erfindung das Gehäuse seinerseits Ausformungen besitzen, die mit den Erhöhungen auf dem Trägerkörper korrespondieren.Around To be able to exclude a relative movement between the housing and bearing mat or support body can according to a Development of the invention, the housing in turn formations own that with the raises correspond on the carrier body.

Anhand der Zeichnung soll die Erfindung in Form von Ausführungsbeispielen näher erläutert werden. Es zeigenBased the drawing is intended to illustrate the invention in the form of embodiments be explained in more detail. Show it

1 einen keramischen Trägerkörper mit ringförmigen Erhöhungen und 1 a ceramic carrier body with annular elevations and

2 einen Trägerkörper mit punktförmigen Erhöhungen. 2 a carrier body with punctate elevations.

1 zeigt ein erstes Ausführungsbeispiel. Man erkennt einen keramischen Trägerkörper 1 mit einer Vielzahl von wabenförmigen Kanälen, die z. B. katalytisch beschichtet sind. Auf den Mantel des Trägerkörpers 1 ist eine Lagermatte 2 aufgewickelt. Um eine Relativbewegung zwischen Trägerkörper 1 und Lagermatte 2 sicher zu verhindern, sind auf den Mantel des Trägerkörpers 1 zwei ringförmige Erhöhungen 3 aufgebracht. Diese bestehen aus einem temperaturbeständigen Material, insbesondere aus aufgebrannter Keramik, und fixieren die Lagermatte 2 formschlüssig. 1 shows a first embodiment. One recognizes a ceramic carrier body 1 with a plurality of honeycomb channels, the z. B. are coated catalytically. On the coat of the carrier body 1 is a storage mat 2 wound. To a relative movement between the carrier body 1 and storage mat 2 are sure to prevent the coat of the carrier body 1 two annular elevations 3 applied. These consist of a temperature-resistant material, in particular of fired ceramic, and fix the bearing mat 2 form-fitting.

2 zeigt eine alternative Ausführungsform. Auf die Mantelfläche des keramischen Trägerkörpers 1 sind punktförmige Erhöhungen 4 aus Keramik aufgetragen. Die zugehörige Lagermatte 2 besitzt Aussparungen 5, die mit den punktförmigen Erhöhungen 4 korrespondieren. Auf diese Weise entsteht eine formschlüssige Verbindung zwischen Trägerkörper 1, Erhöhungen 4 und Lagermatte 2 bzw. Aussparungen 5, die eine Relativbewegung verhindert. 2 shows an alternative embodiment. On the lateral surface of the ceramic carrier body 1 are punctate elevations 4 made of ceramic. The associated storage mat 2 has recesses 5 that with the dot-shaped elevations 4 correspond. In this way, a positive connection between the carrier body 1 , Raises 4 and storage mat 2 or recesses 5 , which prevents a relative movement.

Um auch eine Relativbewegung zwischen Trägerkörper 1 und Lagermatte 2 einerseits und dem Katalysatorgehäuse (nicht dargestellt) andererseits zu verhindern, kann das Gehäuse im Bereich seines Mantels mit Ausformungen ausgerüstet werden, die mit den Erhöhungen 3, 4 korrespondieren. Katalysatorgehäuse mit umlaufenden Sicken, die zu den ringförmigen Erhöhungen 3 passen, sind im Stand der Technik bereits bekannt; diese Gehäuse können ohne Änderung eingesetzt werden.To include a relative movement between the carrier body 1 and storage mat 2 On the one hand and the catalyst housing (not shown) to prevent the other hand, the housing can be equipped in the region of its shell with formations that with the increases 3 . 4 correspond. Catalyst housing with circumferential beads leading to the annular ridges 3 are already known in the art; these housings can be used without modification.

Claims (6)

Vorrichtung zur Nachbehandlung der Abgase von Verbrennungsmotoren, umfassend – einen aktiven keramischen Trägerkörper (1), – eine Lagermatte (2) und – ein Gehäuse, gekennzeichnet durch das Merkmal: – der Mantel des Trägerkörpers (1) trägt nachträglich aufgebrachte, temperaturbeständige Erhöhungen (3, 4).Apparatus for aftertreatment of the exhaust gases of internal combustion engines, comprising - an active ceramic carrier body ( 1 ), - a storage mat ( 2 ) and - a housing, characterized by the feature: - the casing of the carrier body ( 1 ) carries subsequently applied, temperature-resistant elevations ( 3 . 4 ). Vorrichtung nach Anspruch 1, gekennzeichnet durch das Merkmal: – die Erhöhungen (3, 4) bestehen aus eingebrannter Keramik.Device according to claim 1, characterized by the feature: - the elevations ( 3 . 4 ) consist of baked ceramic. Vorrichtung nach Anspruch 1 oder 2, gekennzeichnet durch das Merkmal: – die Erhöhungen (3) sind ringförmig.Device according to claim 1 or 2, characterized by the feature: - the elevations ( 3 ) are annular. Vorrichtung nach Anspruch 1 oder 2, gekennzeichnet durch das Merkmal: – die Erhöhungen (4) sind punktförmig.Device according to claim 1 or 2, characterized by the feature: - the elevations ( 4 ) are punctiform. Vorrichtung nach Anspruch 4, gekennzeichnet durch das Merkmal: – die Lagermatte (2) besitzt Aussparungen (5), die mit den Erhöhungen (4) korrespondieren.Device according to claim 4, characterized by the feature: - the bearing mat ( 2 ) has recesses ( 5 ) with the increases ( 4 ) correspond. Vorrichtung nach einem der Ansprüche 1 bis 5, gekennzeichnet durch das Merkmal: – das Gehäuse besitzt Ausformungen, die mit den Erhöhungen (3, 4) korrespondieren.Device according to one of claims 1 to 5, characterized by the feature: - the housing has formations which coincide with the elevations ( 3 . 4 ) correspond.
DE102007038606A 2006-09-08 2007-08-16 Device for treatment of exhaust gases of internal combustion engines comprises carrier element, bearing mat and housing, with carrier element provided with temperature resistant protrusions Withdrawn DE102007038606A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE102007038606A DE102007038606A1 (en) 2006-09-08 2007-08-16 Device for treatment of exhaust gases of internal combustion engines comprises carrier element, bearing mat and housing, with carrier element provided with temperature resistant protrusions

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE202006013789U DE202006013789U1 (en) 2006-09-08 2006-09-08 Device for treatment of exhaust gases of internal combustion engines comprises carrier element, bearing mat and housing, with carrier element provided with temperature resistant protrusions
DE202006013789.0 2006-09-08
DE102007038606A DE102007038606A1 (en) 2006-09-08 2007-08-16 Device for treatment of exhaust gases of internal combustion engines comprises carrier element, bearing mat and housing, with carrier element provided with temperature resistant protrusions

Publications (1)

Publication Number Publication Date
DE102007038606A1 true DE102007038606A1 (en) 2008-03-20

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DE202006013789U Expired - Lifetime DE202006013789U1 (en) 2006-09-08 2006-09-08 Device for treatment of exhaust gases of internal combustion engines comprises carrier element, bearing mat and housing, with carrier element provided with temperature resistant protrusions
DE102007038606A Withdrawn DE102007038606A1 (en) 2006-09-08 2007-08-16 Device for treatment of exhaust gases of internal combustion engines comprises carrier element, bearing mat and housing, with carrier element provided with temperature resistant protrusions

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DE202006013789U Expired - Lifetime DE202006013789U1 (en) 2006-09-08 2006-09-08 Device for treatment of exhaust gases of internal combustion engines comprises carrier element, bearing mat and housing, with carrier element provided with temperature resistant protrusions

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US (1) US20080060353A1 (en)
CN (1) CN101139942A (en)
DE (2) DE202006013789U1 (en)

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US7921176B2 (en) * 2007-01-03 2011-04-05 Madnani Rajkumar R Mechanism for generating a composite email

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3841839A (en) * 1972-11-17 1974-10-15 Corning Glass Works Catalytic converter
US3892537A (en) * 1973-11-28 1975-07-01 Corning Glass Works Preload means for ceramic substrate in exhaust gas purifiers
EP0212243B1 (en) * 1985-07-25 1989-07-12 INTERATOM Gesellschaft mit beschränkter Haftung Mounting device for a metallic flue gas catalyst support body, and method of manufacturing it
US20020127154A1 (en) * 2000-03-03 2002-09-12 Foster Michael R. Exhaust control device and method for manufacture thereof
DE10045540A1 (en) * 2000-09-13 2002-03-21 Emitec Emissionstechnologie Honeycomb body with shortened, slotted inner jacket tube
DE10046610C1 (en) * 2000-09-20 2002-04-25 Emitec Emissionstechnologie Solid-lot storage of a catalyst carrier body
US6919052B2 (en) * 2000-12-04 2005-07-19 Delphi Technologies, Inc. Catalytic converter

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CN101139942A (en) 2008-03-12
DE202006013789U1 (en) 2006-12-28
US20080060353A1 (en) 2008-03-13

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