EP1205649A1 - Metal catalyst for an exhaust system - Google Patents

Metal catalyst for an exhaust system Download PDF

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Publication number
EP1205649A1
EP1205649A1 EP01124009A EP01124009A EP1205649A1 EP 1205649 A1 EP1205649 A1 EP 1205649A1 EP 01124009 A EP01124009 A EP 01124009A EP 01124009 A EP01124009 A EP 01124009A EP 1205649 A1 EP1205649 A1 EP 1205649A1
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EP
European Patent Office
Prior art keywords
metal
catalyst
ceramic
funnel
metal catalyst
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.)
Ceased
Application number
EP01124009A
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German (de)
French (fr)
Inventor
Attila Behner
Gerd Busch
Fred Emde
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.)
Volkswagen AG
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Volkswagen AG
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 Volkswagen AG filed Critical Volkswagen AG
Publication of EP1205649A1 publication Critical patent/EP1205649A1/en
Ceased 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
    • F01N3/2842—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration specially adapted for monolithic supports, e.g. of honeycomb type
    • 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
    • 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

Definitions

  • the invention relates to a metal catalyst for an exhaust system Internal combustion engine, in particular a motor vehicle, with an as Metal winding body trained metal converter, which from a jacket sheet is surrounded, on each side of a funnel changing the flow cross-section is provided for connection to the exhaust system, according to the preamble of Claim 1.
  • the catalytic converter In the exhaust system, the catalytic converter is looped into an exhaust pipe. To achieve the largest possible contact area between the exhaust gas to be treated and one The catalytically active layer of the catalyst has a large diameter on.
  • the catalytic converter To integrate the catalytic converter into the exhaust system, the catalytic converter is upstream an input funnel is provided, which the diameter of the exhaust pipe on the expands larger diameter of the catalyst. Downstream of the catalyst is on Output funnel provided which the large diameter of the catalyst returns the smaller diameter of the exhaust pipe. Because of the different basic structure of these two aforementioned carrier or Connection systems (ceramic or metal converters) are separate input and Output funnel for ceramic and metal converters required.
  • a metal winding support or metal winding body is in soldered a tube.
  • this pipe there are two PE spacer rings and one at each end appropriate funnel inserted and welded.
  • the present invention has for its object a metal catalyst to improve the above type in such a way that a simplified and less expensive assembly with better use of resources regarding warehousing and Item production is achieved.
  • the metal winding body (12) is such is formed that it is a ceramic monolith in diameter Ceramic catalyst corresponds, with respective connection points for the funnels (22) are designed such that funnels of ceramic catalyst with the casing plate (16) are connectable.
  • Appropriate free ends of the jacket plate are expedient around one predetermined angle, such as 30 °, turned off.
  • the increase in the diameter of the metal winding body also results in the advantageous way of maintaining the length of the metal winding body Surface to the equivalent linear expansion of a ceramic monolith shorten.
  • the metal catalyst 10 comprises a metal winding support or body 12 trained metal converter which is arranged in a jacket plate 16. Each free Ends 18 of the cladding sheet 16 are turned off by an angle 20 of 30 °.
  • the Parking serves to connect a funnel 22 to the assembled one Metal catalyst 10.
  • the funnel 22 is upstream of the metal catalyst 10 Inlet funnel, which has a small cross section of an exhaust pipe, not shown an exhaust system of an internal combustion engine on the larger cross section of the Metal catalyst 10 expands.
  • This funnel 22 is downstream of the metal catalyst 10 an outlet funnel, which the large cross section of the metal catalyst 10 on the smaller cross section of the exhaust pipe narrowed.
  • the winding body 12 is formed in its cross section such that it in the Dimensions corresponds to a ceramic monolith of a ceramic catalyst. hereby it is possible to cooperate with the shutdown 18, 20 on the metal catalyst 10
  • a metal catalyst 10 designed according to the invention does not require any manufactured separately for this funnel 22, but it can already be used for Ceramic funnel 22 existing can be used.
  • the connection points for funnels 22 are formed in this way. that a funnel 22 of a ceramic catalyst Casing sheet 16 overlaps.
  • the diameter of the metal winding body 12 is increased, which results in advantageously an increased surface of the catalytically active surface.
  • metal catalyst here designates the overall arrangement Winding body 12, jacket sheet 16 and a funnel 22 on each side of the Metal winding body 12.
  • the different carrier systems (ceramic or metal catalyst) with each other substitute at short notice.
  • known metal catalysts may be required PE spacer rings between the funnel and the metal winding carrier are not required.
  • already existing Funnels from the field of ceramic catalysts can be used for the inventive Metal catalysts are used. In a production, this can also be done at short notice be switched between ceramic and metal catalysts, for example at Changed emissions regulations may be required.
  • the metal catalyst 10 according to the invention has a connection on both sides of Outlet or inlet funnel 22 such that conventional funnel 22 from Ceramic catalysts attached to the metal catalyst 10 according to the invention can be. At the same time, the dimensions of the metal winding body 12 are in length and diameter adjusted accordingly.

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

Abstract

The device has a metal converter in the form of a coiled metal body (12) enclosed by a metal sheet with a funnel varying the flow cross-section on both sides for connection to the exhaust gas system. The metal body is designed to correspond in diameter to a ceramic monolith of a ceramic catalyser, whereby funnel (22) connection points are designed so that funnels of ceramic catalysers can be connected to the casing (16).

Description

Die Erfindung betrifft einen Metallkatalysator für eine Abgasanlage einer Brennkraftmaschine, insbesondere eines Kraftfahrzeuges, mit einem als Metallwickelkörper ausgebildeten Metallkonverter, welcher von einem Mantelblech umgeben ist, an dem an jeder Seite ein den Strömungsquerschnitt verändernder Trichter zum Anschluß an die Abgasanlage vorgesehen ist, gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a metal catalyst for an exhaust system Internal combustion engine, in particular a motor vehicle, with an as Metal winding body trained metal converter, which from a jacket sheet is surrounded, on each side of a funnel changing the flow cross-section is provided for connection to the exhaust system, according to the preamble of Claim 1.

Zur Abgasnachbehandlung in der Abgasanlage einer Brennkraftmaschine ist es zum Umwandeln von Schadstoffen im Abgas in ganz oder teilweise unschädliche Stoffe bekannt, im Abgasstrom einen Katalysator oder Konverter vorzusehen. Dieser bewirkt eine chemische Umwandlung der Schadstoffe in ungiftige Stoffe, ohne sich dabei selbst zu verändern (katalytischer Prozeß). Derzeit sind zwei Trägersysteme für Katalysatoren im Abgasanlagenbereich bekannt, nämlich Keramikmonolithe (Keramikkonverter) und Metallwickelträger (Metallkonverter).For exhaust gas aftertreatment in the exhaust system of an internal combustion engine, it is the Converting pollutants in the exhaust gas into completely or partially harmless substances known to provide a catalyst or converter in the exhaust gas stream. This causes a chemical conversion of the pollutants into non-toxic substances without doing themselves to change (catalytic process). There are currently two support systems for catalysts known in the exhaust system area, namely ceramic monoliths (ceramic converter) and Metal winding carrier (metal converter).

In der Abgasanlage wird der Katalysator in ein Abgasrohr eingeschleift. Zum Erzielen einer möglichst großen Kontaktfläche zwischen dem zu behandelnden Abgas und einer katalytisch aktiven Schicht des Katalysators weist letzterer einen großen Durchmesser auf. Zum Einbinden des Katalysators in die Abgasanlage ist stromauf des Katalysators ein Eingangstrichter vorgesehen, welcher den Durchmesser des Abgasrohres auf den größeren Durchmesser des Katalysators aufweitet. Stromab des Katalysators ist ein Ausgangstrichter vorgesehen, welcher den großen Durchmesser des Katalysators auf den kleineren Durchmesser des Abgasrohres zurückführt. Aufgrund des unterschiedlichen Grundaufbaus dieser beiden vorgenannten Träger- bzw. Anbindungssysteme (Keramik- bzw. Metallkonverter) werden separate Ein- und Ausgangstrichter für Keramik- und Metallkonverter benötigt. In the exhaust system, the catalytic converter is looped into an exhaust pipe. To achieve the largest possible contact area between the exhaust gas to be treated and one The catalytically active layer of the catalyst has a large diameter on. To integrate the catalytic converter into the exhaust system, the catalytic converter is upstream an input funnel is provided, which the diameter of the exhaust pipe on the expands larger diameter of the catalyst. Downstream of the catalyst is on Output funnel provided which the large diameter of the catalyst returns the smaller diameter of the exhaust pipe. Because of the different basic structure of these two aforementioned carrier or Connection systems (ceramic or metal converters) are separate input and Output funnel for ceramic and metal converters required.

Bei bekannten Metallkatalysatoren ist ein Metallwickelträger bzw. Metallwickelkörper in ein Rohr eingelötet. In dieses Rohr sind an jedem Ende zwei PE-Distanzringe und ein entsprechender Trichter eingeschoben und verschweißt.In known metal catalysts, a metal winding support or metal winding body is in soldered a tube. In this pipe there are two PE spacer rings and one at each end appropriate funnel inserted and welded.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, einen Metallkatalysator der obengenannten Art dahingehend zu verbessern, daß eine vereinfachte und kostengünstigere Montage bei besserer Ressourcenausnutzung bzgl. Lagerhaltung und Einzelteileherstellung erzielt wird.The present invention has for its object a metal catalyst to improve the above type in such a way that a simplified and less expensive assembly with better use of resources regarding warehousing and Item production is achieved.

Diese Aufgabe wird erfindungsgemäß durch einen Metallkatalysator der o.g. Art mit den in Anspruch 1 gekennzeichneten Merkmalen gelöst. Vorteilhafte Ausgestaltungen der Erfindung sind in den abhängigen Ansprüchen angegeben.This object is achieved by a metal catalyst of the above. Kind with the features characterized in claim 1 solved. Advantageous embodiments of the Invention are specified in the dependent claims.

Dazu ist es erfindungsgemäß vorgesehen, daß der Metallwickelkörper (12) derart ausgebildet ist, daß er in seinem Durchmesser einem Keramikmonolith eines Keramikkatalysators entspricht, wobei jeweilige Anschlußstellen für die Trichter (22) derart ausgebildet sind, daß Trichter von Keramikkatalysators mit dem Mantelblech (16) verbindbar sind.For this purpose, it is provided according to the invention that the metal winding body (12) is such is formed that it is a ceramic monolith in diameter Ceramic catalyst corresponds, with respective connection points for the funnels (22) are designed such that funnels of ceramic catalyst with the casing plate (16) are connectable.

Dies hat den Vorteil, daß für einen Keramikkatalysator passende Eingangs- und Ausgangsrichter auch an den Metallkatalysator passen, so daß für die verschiedenen Katalysator-Trägersysteme weniger Einzelteile vorgehalten werden müssen. Ein Wechsel von einem Katalysatorsystem zum anderen Katalysatorsystem während eines Produktionsprozesses ist damit einfach schnell und ohne Aufwand möglich. Auch das Verbauen der beiden Katalysatorsysteme in beliebiger Abfolge auf ein und derselben Montagestrecke ist ohne Umstellung des Fertigungsprozesses möglich.This has the advantage that suitable input and for a ceramic catalyst Output judges also fit on the metal catalyst, so that for the different Catalyst carrier systems fewer parts need to be kept. On Change from one catalyst system to another catalyst system during one The production process is therefore quick and easy. That too Install the two catalyst systems on the same in any order Assembly line is possible without changing the manufacturing process.

Zweckmäßigerweise sind jeweilige freie Enden des Mantelbleches um einen vorbestimmten Winkel, wie beispielsweise 30°, abgestellt.Appropriate free ends of the jacket plate are expedient around one predetermined angle, such as 30 °, turned off.

Durch die Vergrößerung der Durchmessers des Metallwickelkörpers ergibt sich ferner die vorteilhafte Möglichkeit, die Länge des Metallwickelkörpers bei gleichbleibender Oberfläche auf die äquivalente Längenausdehnung eines Keramikmonolithen zu verkürzen. The increase in the diameter of the metal winding body also results in the advantageous way of maintaining the length of the metal winding body Surface to the equivalent linear expansion of a ceramic monolith shorten.

Weitere Merkmale, Vorteile und vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus den abhängigen Ansprüchen, sowie aus der nachstehenden Beschreibung der Erfindung anhand der beigefügten Zeichnung. Diese zeigt in der einzigen Fig. eine Teilschnittansicht einer bevorzugten Ausführungsform eines erfindungsgemäßen Metallkatalysators.Further features, advantages and advantageous configurations of the invention result from the dependent claims, as well as from the following description of the Invention with reference to the accompanying drawings. This shows one in the single FIG Partial sectional view of a preferred embodiment of an inventive Metal catalyst.

Der Metallkatalysator 10 umfaßt einen als Metallwickelträger oder -körper 12 ausgebildeten Metallkonverter, der in einem Mantelblech 16 angeordnet ist. Jeweils freie Enden 18 des Mantelbleches 16 sind um einen Winkel 20 von 30° abgestellt. Die Abstellung dient zur Anbindung eines Trichters 22, an den zusammengebauten Metallkatalysator 10. Der Trichter 22 ist hierbei stromauf des Metallkatalysators 10 ein Einlaßtrichter, welcher einen kleinen Querschnitt eines nicht dargestellten Abgasrohres einer Abgasanlage einer Brennkraftmaschine auf den größeren Querschnitt des Metallkatalysators 10 aufweitet. Stromab des Metallkatalysators 10 ist dieser Trichter 22 ein Auslaßtrichter, welcher den großen Querschnitt des Metallkatalysators 10 auf den kleineren Querschnitt des Abgasrohres verengt.The metal catalyst 10 comprises a metal winding support or body 12 trained metal converter which is arranged in a jacket plate 16. Each free Ends 18 of the cladding sheet 16 are turned off by an angle 20 of 30 °. The Parking serves to connect a funnel 22 to the assembled one Metal catalyst 10. The funnel 22 is upstream of the metal catalyst 10 Inlet funnel, which has a small cross section of an exhaust pipe, not shown an exhaust system of an internal combustion engine on the larger cross section of the Metal catalyst 10 expands. This funnel 22 is downstream of the metal catalyst 10 an outlet funnel, which the large cross section of the metal catalyst 10 on the smaller cross section of the exhaust pipe narrowed.

Der Wickelkörper 12 ist in seinem Querschnitt derart ausgebildet, daß er in den Abmessungen einem Keramikmonolith eines Keramikkatalysators entspricht. Hierdurch ist es zusammenwirkend mit der Abstellung 18, 20 möglich, an den Metallkatalysator 10 Trichter 22 anzubringen, welche ursprünglich für Keramikkatalysatoren hergestellt waren, welche andere Abmessungen aufweisen als herkömmliche Metallkatalysatoren. Mit anderen Worten benötigt ein erfindungsgemäße ausgebildeter Metallkatalysator 10 keine separat für diesen hergestellte Trichter 22, sondern es können die bereits für Keramikkatalysatoren vorhandenen Trichter 22 verwendet werden. Die Anschlußstellen für Trichter 22 sind derart ausgebildet. daß ein Trichter 22 eines Keramikkatalysators das Mantelblech 16 übergreift.The winding body 12 is formed in its cross section such that it in the Dimensions corresponds to a ceramic monolith of a ceramic catalyst. hereby it is possible to cooperate with the shutdown 18, 20 on the metal catalyst 10 To install funnels 22, which were originally made for ceramic catalysts, which have different dimensions than conventional metal catalysts. With in other words, a metal catalyst 10 designed according to the invention does not require any manufactured separately for this funnel 22, but it can already be used for Ceramic funnel 22 existing can be used. The connection points for funnels 22 are formed in this way. that a funnel 22 of a ceramic catalyst Casing sheet 16 overlaps.

Der Metallwickelkörper 12 wird in seinem Durchmesser vergrößert, dadurch ergibt sich in vorteilhafter Weise eine erhöhte Oberfläche des katalytisch wirksamen Fläche. Andererseits ist es möglich, bei gleichbleibender Oberfläche den Metallwickelkörper auf die Länge eines Keramikmonolithen zu verkürzen, so daß sich auch in der Länge gleiche Abmessungen bzgl. eines Keramikkatalysators ergeben. The diameter of the metal winding body 12 is increased, which results in advantageously an increased surface of the catalytically active surface. On the other hand, it is possible to have the metal winding body on the same surface to shorten the length of a ceramic monolith, so that the length is the same Dimensions with respect to a ceramic catalyst result.

Der Ausdruck "Metallkatalysator" bezeichnet hier die Gesamtanordnung aus Wickelkörper 12, Mantelblech 16 und je einen Trichter 22 auf jeder Seite des Metallwickelkörpers 12.The term "metal catalyst" here designates the overall arrangement Winding body 12, jacket sheet 16 and a funnel 22 on each side of the Metal winding body 12.

Durch die erfindungsgemäße Vereinheitlichung der Trichteranbindung lassen sich die unterschiedlichen Trägersysteme (Keramik- bzw. Metallkatalysator) untereinander kurzfristig substituieren. Ferner können bei bekannten Metallkatalysatoren erforderliche PE-Distanzringe zwischen Trichter und Metallwickelträger entfallen. Bereits vorhandene Trichter aus dem Bereich der Keramikkatalysatoren können für die erfindungsgemäßen Metallkatalysatoren verwendet werden. In einer Fertigung kann dadurch auch kurzfristig zwischen Keramik- und Metallkatalysatoren gewechselt werden, was beispielsweise bei geänderten Abgasvorschriften erforderlich sein kann.By standardizing the funnel connection according to the invention, the different carrier systems (ceramic or metal catalyst) with each other substitute at short notice. Furthermore, known metal catalysts may be required PE spacer rings between the funnel and the metal winding carrier are not required. Already existing Funnels from the field of ceramic catalysts can be used for the inventive Metal catalysts are used. In a production, this can also be done at short notice be switched between ceramic and metal catalysts, for example at Changed emissions regulations may be required.

Der erfindungsgemäße Metallkatalysator 10 weist eine beidseitige Anbindung von Auslaß- bzw. Einlaßtrichter 22 derart auf, daß herkömmliche Trichter 22 von Keramikkatalysatoren an dem erfindungsgemäßen Metallkatalysator 10 angebracht werden können. Gleichzeitig sind Abmessungen des Metallwickelkörpers 12 in Länge und Durchmesser entsprechend angepaßt.The metal catalyst 10 according to the invention has a connection on both sides of Outlet or inlet funnel 22 such that conventional funnel 22 from Ceramic catalysts attached to the metal catalyst 10 according to the invention can be. At the same time, the dimensions of the metal winding body 12 are in length and diameter adjusted accordingly.

Claims (4)

Metallkatalysator (10) für eine Abgasanlage einer Brennkraftmaschine, insbesondere eines Kraftfahrzeuges, mit einem als Metallwickelkörper (12) ausgebildeten Metallkonverter, welcher von einem Mantelblech (16) umgeben ist, an dem an jeder Seite ein den Strömungsquerschnitt verändernder Trichter (22) zum Anschluß an die Abgasanlage vorgesehen ist, dadurch gekennzeichnet, daß der Metallwickelkörper (12) derart ausgebildet ist, daß er in seinem Durchmesser einem Keramikmonolith eines Keramikkatalysators entspricht, wobei jeweilige Anschlußstellen für die Trichter (22) derart ausgebildet sind, daß Trichter von Keramikkatalysators mit dem Mantelblech (16) verbindbar sind.Metal catalyst (10) for an exhaust system of an internal combustion engine, in particular a motor vehicle, with a metal converter designed as a metal winding body (12), which is surrounded by a jacket plate (16) to which a funnel (22) which changes the flow cross section is connected on each side for connection the exhaust system is provided, characterized in that the metal winding body (12) is designed in such a way that its diameter corresponds to a ceramic monolith of a ceramic catalyst, the respective connection points for the funnels (22) being designed in such a way that funnels of ceramic catalyst with the jacket plate ( 16) are connectable. Metallkatalysator (10) nach Anspruch 1, dadurch gekennzeichnet, daß jeweilige freie Enden (18) des Mantelbleches (16) um einen vorbestimmten Winkel (20) abgestellt sind.Metal catalyst (10) according to claim 1, characterized in that respective free ends (18) of the casing plate (16) are turned off by a predetermined angle (20). Metallkatalysator (10) nach Anspruch 2, dadurch gekennzeichnet, daß die freien Enden (18) des Mantelbleches (16) um 30° abgestellt sind.Metal catalyst (10) according to claim 2, characterized in that the free ends (18) of the jacket plate (16) are turned off by 30 °. Metallkatalysator (10) nach wenigstens einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Metallwickelkörper (12) derart ausgebildet ist, daß er in seiner Länge einem Keramikmonolith eines Keramikkatalysators entspricht.Metal catalyst (10) according to at least one of the preceding claims, characterized in that the metal winding body (12) is designed such that its length corresponds to a ceramic monolith of a ceramic catalyst.
EP01124009A 2000-11-10 2001-10-09 Metal catalyst for an exhaust system Ceased EP1205649A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10055728 2000-11-10
DE2000155728 DE10055728A1 (en) 2000-11-10 2000-11-10 Metal catalytic converter for an exhaust system

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EP1205649A1 true EP1205649A1 (en) 2002-05-15

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EP01124009A Ceased EP1205649A1 (en) 2000-11-10 2001-10-09 Metal catalyst for an exhaust system

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4087039A (en) * 1974-01-02 1978-05-02 Tenneco Inc. Method of making catalytic converters for exhaust gases
EP0243951A1 (en) * 1986-04-29 1987-11-04 Kemira Oy A method for encasing a catalytic unit used for the purification of exhaust gases
EP0263893A1 (en) * 1986-10-16 1988-04-20 W.R. Grace & Co. Housing for catalytic converter elements and catalytic converter
EP0768451A1 (en) * 1995-10-12 1997-04-16 Toyota Jidosha Kabushiki Kaisha Monolithic catalytic converter and process for producing the same
US5829132A (en) * 1996-08-07 1998-11-03 Arvin Industries, Inc. Methods of assembling an exhaust processor

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3807416A1 (en) * 1988-03-07 1989-09-28 Bayerische Motoren Werke Ag HOUSING OF AN EXHAUST GAS CATALYST FOR INTERNAL COMBUSTION ENGINES

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4087039A (en) * 1974-01-02 1978-05-02 Tenneco Inc. Method of making catalytic converters for exhaust gases
EP0243951A1 (en) * 1986-04-29 1987-11-04 Kemira Oy A method for encasing a catalytic unit used for the purification of exhaust gases
EP0263893A1 (en) * 1986-10-16 1988-04-20 W.R. Grace & Co. Housing for catalytic converter elements and catalytic converter
EP0768451A1 (en) * 1995-10-12 1997-04-16 Toyota Jidosha Kabushiki Kaisha Monolithic catalytic converter and process for producing the same
US5829132A (en) * 1996-08-07 1998-11-03 Arvin Industries, Inc. Methods of assembling an exhaust processor

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Publication number Publication date
DE10055728A1 (en) 2002-05-23

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