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DE2422110A1 - Exhaust gas catalyser mounting system - has spring shackles between the catalyser body and interior pipe of exhaust system - Google Patents

Exhaust gas catalyser mounting system - has spring shackles between the catalyser body and interior pipe of exhaust system

Info

Publication number
DE2422110A1
DE2422110A1 DE2422110A DE2422110A DE2422110A1 DE 2422110 A1 DE2422110 A1 DE 2422110A1 DE 2422110 A DE2422110 A DE 2422110A DE 2422110 A DE2422110 A DE 2422110A DE 2422110 A1 DE2422110 A1 DE 2422110A1
Authority
DE
Germany
Prior art keywords
exhaust
catalyser
catalytic converter
catalyst body
spring tabs
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Withdrawn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
DE2422110A
Other languages
German (de)
Inventor
Manfred Stute
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.)
Daimler Benz AG
Original Assignee
Daimler Benz 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 Daimler Benz AG filed Critical Daimler Benz AG
Priority to DE2422110A priority Critical patent/DE2422110A1/en
Publication of DE2422110A1 publication Critical patent/DE2422110A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10Exhaust 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
    • F01N3/24Exhaust 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
    • F01N3/28Construction of catalytic reactors
    • F01N3/2839Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration
    • F01N3/2875Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration by using elastic means, e.g. spring leaves, for retaining catalyst body in the housing
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

Landscapes

  • 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 exhaust gas catalyser attachment is partic. for power driven vehicles, and has a radial elastic support with spring shackles (8) which bridges the space between the catalyser body (6) and the inner wall (1) of the tubular exhaust system. The spring shackles are mounted on a cover (7) for the catalyser body (6). This cover (7) has a longitudinal slit stretching the whole length of the cover (7). The spring shackles may be of compressed U design (8) or V form and their free ends are in contact both with the catalyser cover (7) and the exhaust system inner pipe wall (1).

Description

"Abgaskatalysatorbefestigung" Zusatz zu Patent ....... (Patentanmeldung P 23 18 126.2) Die Erfindung betrifft eine Abgaskatalysatorbefestigung, insbesondere für Kraftfahrzeuge, die einen Katalysatorkörper in einer Auspuffleitung so einspannt, daß er weitgehend vor Abgas- und/oder Fahrzeugschwingungen geschützt ist, und wobei die Befestigung den Katalysatorkörper in radialer und axialer Richtung elastisch abstützt, nach Patent ...,.. (Patentanmeldung P 23 18 126.2)."Exhaust catalytic converter attachment" addendum to patent ....... (patent application P 23 18 126.2) The invention relates to a catalytic converter mounting, in particular for motor vehicles that clamps a catalytic converter body in an exhaust pipe in such a way that that it is largely protected from exhaust gas and / or vehicle vibrations, and where the attachment of the catalyst body is elastic in the radial and axial directions supports, according to patent ..., .. (patent application P 23 18 126.2).

Im Hauptpatent ......... (Patentanmeldung P 23 18 126.2) ist eine Befestigung behandelt, bei der die radial elastische Abstützung des Katalysatorkörpers durch ein hitzebeständiges Isoliermaterial, z.B. Keramikwolle, und die axial elastische Abstützung durch zwei vorgespannte ringförmige Membranen erfolgt, die auch aus sich schuppenförmig überlappenden Einzelteilen bestehen können.In the main patent ......... (patent application P 23 18 126.2) is one Fastening treated in which the radially elastic support of the catalyst body by a heat-resistant insulating material, e.g. ceramic wool, and the axially elastic Support is provided by two prestressed annular membranes, which are also made up of themselves may exist flaky overlapping items.

Es ist Aufgabe der vorliegenden Erfindung, eine weitere vorteilhafte Katalysatorbefestigung durch eine radial elastische Abstützung zu schaffen.It is the object of the present invention to provide a further advantageous To create catalyst attachment by a radially elastic support.

Die Aufgabe ist erfindungsgemäß dadurch gelöst, daß die radial elastische Abstützung durch metallische Federlaschen erfolgt, die den hohlraum zwischen Katalysatorkörper und Innenwandung eines Rohrteilstücks in der Auspuffleitung überbrücken.The object is achieved according to the invention in that the radially elastic Supported by metallic spring straps is made that the cavity between the catalyst body and the inner wall of a pipe section in the exhaust line bridge.

In Ausgestaltung der Erfindung sind die Federlaschen an einem der Innenform der Auspuffleitung oder der Außenform des Katalysatorkörpers angepaßten Mantel befestigt. In an embodiment of the invention, the spring tabs are on one of the Inner shape of the exhaust pipe or the outer shape of the catalyst body adapted Coat attached.

Um Wärmedehnungen aufnehmen zu können, weist der Mantel vorzugsweise einen Schlitz auf, der sich über seine gesamte Länge erstreckt. In order to be able to absorb thermal expansion, the jacket preferably has a slot that extends its entire length.

Um die Wärmedehnungen des >Iantels auszugleichen, können die Federlatchen U-förmig abgebogen sein und mit ihren freien Enden an der Innenwandung der Auspuffleitung anliegen. In order to compensate for the thermal expansion of the> jacket, the spring tabs Be bent in a U-shape and with their free ends on the inner wall of the exhaust line issue.

Bei einer anderen Ausführungsform der Erfindung liegen die freien Enden der Federlaschen außen am Katalysatorkörper an. In another embodiment of the invention, the free ones are Ends of the spring tabs on the outside of the catalyst body.

Dies ist nach der Erfindung auch dadurch erreichbar, daß die Federlaschen V-förmig abgewinkelt sind. According to the invention, this can also be achieved in that the spring tabs Are angled in a V-shape.

In der Zeichnung ist die Erfindung in zwei Ausführungsformen beispielsweise dargestellt. Es zeigen Fig. 1 einen Längsschnitt durch die Katalysatoranordnung in der Auspuffleitung mit Befestigung und Abstützung, Fig. 2 einen Querschnitt nach der Linie II-II in Fig. 1, und Fig. 3 einen Schnitt entsprechend Fig.2 durch eine andere Ausführungsform der Erfindung. In the drawing, the invention is in two embodiments, for example shown. 1 shows a longitudinal section through the catalytic converter arrangement in the exhaust line with attachment and support, Fig. 2 shows a cross section the line II-II in Fig. 1, and 3 shows a section accordingly Fig.2 by another embodiment of the invention.

Fig.1 zeigt ein in eine Auspuffleitung eingebautes Rohrteilstück 1 mit Befestigungsflanschen 2 und 3. Zwei ringförmige Membranen 4 und 5 dienen für den Katalysatorkörper 6 als axial elastische Abstützung in der Auspuffleitung. Der Katalysatorkörper 6 wird von einem Mantel 7 aus hitzebeständigem Material umschlossen, auf dem metallische Federlaschen 8 befestigt sind, die sich mit ihren freien Enden 9 in radialer Richtung beweglich und elastisch gegen die Innenwandung des Rohrteilstücks 1 abstützen. Es ist aber auch denkbar, daß der Mantel der Innenform der Auspuffleitung angepaßt ist und die Federlaschen sich mit ihren freien Enden gegen den Katalysatorkörper abstützen. Beide Ausführungsformen sind geeignet, den Katalysatorkörper 6 radial elastisch zu zentrieren und zu fixieren.1 shows a pipe section 1 installed in an exhaust line with mounting flanges 2 and 3. Two annular membranes 4 and 5 are used for the catalyst body 6 as an axially elastic support in the exhaust line. Of the Catalyst body 6 is enclosed by a jacket 7 made of heat-resistant material, are attached to the metallic spring tabs 8, which are with their free ends 9 movable in the radial direction and elastic against the inner wall of the pipe section 1 support. But it is also conceivable that the jacket of the inner shape of the exhaust line is adapted and the spring tabs with their free ends against the catalyst body prop up. Both embodiments are suitable, the catalyst body 6 radially to center and fix elastically.

Fig.2 und 3 zeigen im Querschnitt den Katalysatorkörper 6 zentrisch gelagert und umschlossen von dem Mantel 7, auf dem in Abständen Federlaschen 8, ii befestigt sind, die mit ihren freien Enden 9, 12 sich beweglich gegen die Innenwandung des Rohrteilstücks 1 abstützen. Um Wärmedehnungen aufnehmen zu können, ist der Mantel 7 mit einem durchgehenden Schlitz 10 versehen.2 and 3 show the catalyst body 6 centrally in cross section stored and enclosed by the jacket 7, on which spring tabs 8, ii are attached, which with their free ends 9, 12 are movable against the inner wall of the pipe section 1. In order to be able to absorb thermal expansion, the jacket 7 is provided with a continuous slot 10.

Claims (6)

AnsprücheExpectations Abgaskatalysatorbefestigung, insbesondere für Kraftfahrzeuge, die einen Katalysatorkörper in einer Auspuffleitung so einspannt, daß er weitgehend vor Abgas- und/oder Fahrzeugschwingungen geschützt ist, wobei die Befestigung den Katalysatorkörper in radialer und axialer Richtung elastisch abstützt, nach Patent ........ (Patentanmeldung P 23 18 126.2), dadurch gekennzeichnet, daß die radial elastische Abstützung durch metallische Federlaschen (8, 11) erfolgt, die den Hohlraum zwischen Katalysatorkörper (6) und Innenwandung eines Rohrteilstücks (1) in der Auspuffleitung überbrücken.Exhaust catalytic converter fastening, in particular for motor vehicles that a catalyst body clamped in an exhaust pipe so that it largely is protected from exhaust gas and / or vehicle vibrations, the attachment to the Catalyst body supported elastically in radial and axial directions, according to patent ........ (Patent application P 23 18 126.2), characterized in that the radial elastic support is provided by metallic spring tabs (8, 11) that form the cavity between the catalyst body (6) and the inner wall of a pipe section (1) in the Bridge the exhaust line. 2. Abgaskatalysatorbefestigung nach Anspruch 1, dadurch gekennzeichnet, daß die Federlaschen (8,11) an einem der Innenform der Auspuffleitung oder der Außenform des Katalysatorkörpers (6) angepaßten Mantel (7) befestigt sind.2. Exhaust catalytic converter mounting according to claim 1, characterized in that that the spring tabs (8, 11) on one of the inner shape of the exhaust line or the outer shape of the catalyst body (6) adapted jacket (7) are attached. 3. Abgaskatalysatorbefestigung nach Anspruch 1 und 2, dadurch gekennzeichnet, daß der Mantel (7) einen Schlitz (10) aufweist, der sich über die gesamte Länge des Mantels (7) erstreckt.3. Catalytic converter fastening according to claim 1 and 2, characterized in that that the jacket (7) has a slot (10) which extends over the entire length of the jacket (7) extends. 4. Abgaskatalysatorbefestigung nach Anspruch 1 und 2, dadurch gekennzeichnet, daß die Federlaschen (8) U-förmig abgebogen sind und mit ihren freien Enden (9) an der Innenwandung der Auspuffleitung anliegen.4. Catalytic converter fastening according to claim 1 and 2, characterized in that that the spring tabs (8) are bent in a U-shape and with their free ends (9) rest against the inner wall of the exhaust line. 5. Abgaskatalysatorbefestigung nach Anspruch 1 und 2, dadurch gekennzeichnet, daß die Federlaschen (8) U-förmig abgebogen sind und mit Ihren freien Enden (9) außen am Katalysatorkörper (6) anliegen.5. Catalytic converter fastening according to claim 1 and 2, characterized in that that the spring tabs (8) bent in a U-shape are and with your free ends (9) rest on the outside of the catalyst body (6). 6. Abgaskatalysatorbefestigung nach den Ansprüchen i, 2, 4 und 5s dadurch gekennzeichnet, daß die Federlaschen (11) V-förmig abgewinkelt sind.6. Catalytic converter fastening according to claims i, 2, 4 and 5s characterized in that the spring tabs (11) are angled in a V-shape. L e e r s e i t eL e r s e i t e
DE2422110A 1974-05-08 1974-05-08 Exhaust gas catalyser mounting system - has spring shackles between the catalyser body and interior pipe of exhaust system Withdrawn DE2422110A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2422110A DE2422110A1 (en) 1974-05-08 1974-05-08 Exhaust gas catalyser mounting system - has spring shackles between the catalyser body and interior pipe of exhaust system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2422110A DE2422110A1 (en) 1974-05-08 1974-05-08 Exhaust gas catalyser mounting system - has spring shackles between the catalyser body and interior pipe of exhaust system

Publications (1)

Publication Number Publication Date
DE2422110A1 true DE2422110A1 (en) 1975-11-27

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DE2422110A Withdrawn DE2422110A1 (en) 1974-05-08 1974-05-08 Exhaust gas catalyser mounting system - has spring shackles between the catalyser body and interior pipe of exhaust system

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0356907A2 (en) * 1988-09-01 1990-03-07 Emitec Gesellschaft für Emissionstechnologie mbH Carrier body for a catalytic reacter for cleaning exhaust gas
EP0590596A1 (en) * 1992-09-29 1994-04-06 Nippon Steel Corporation Metal catalyst carrier for exhaust gas purification
EP0618353A1 (en) * 1993-03-22 1994-10-05 Ngk Insulators, Ltd. Heater unit
US7438867B2 (en) 2001-07-19 2008-10-21 Emitec Gesellschaft Fuer Emissionstechnologie Mbh Honeycomb body having a spring/damper system and method for producing the honeycomb body
US9050559B2 (en) 2013-03-01 2015-06-09 Caterpillar Inc. System and method for accommodating aftertreatment bricks
US9086007B2 (en) 2012-12-21 2015-07-21 Caterpillar Inc. System and method for accommodating aftertreatment bricks
US9464550B2 (en) 2012-12-21 2016-10-11 Caterpillar Inc. System and method for retaining aftertreatment bricks

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0356907A2 (en) * 1988-09-01 1990-03-07 Emitec Gesellschaft für Emissionstechnologie mbH Carrier body for a catalytic reacter for cleaning exhaust gas
EP0356907A3 (en) * 1988-09-01 1990-06-13 Sueddeutsche Kuehler Behr Carrier body for a catalytic reacter for cleaning exhaust gas
EP0590596A1 (en) * 1992-09-29 1994-04-06 Nippon Steel Corporation Metal catalyst carrier for exhaust gas purification
US5486338A (en) * 1992-09-29 1996-01-23 Nippon Steel Corporation Metal catalyst carrier for exhaust gas purification
EP0618353A1 (en) * 1993-03-22 1994-10-05 Ngk Insulators, Ltd. Heater unit
US5526462A (en) * 1993-03-22 1996-06-11 Ngk Insulators, Ltd. Honeycomb heater with mounting means preventing axial-displacement and absorbing radial displacement
US7438867B2 (en) 2001-07-19 2008-10-21 Emitec Gesellschaft Fuer Emissionstechnologie Mbh Honeycomb body having a spring/damper system and method for producing the honeycomb body
US9086007B2 (en) 2012-12-21 2015-07-21 Caterpillar Inc. System and method for accommodating aftertreatment bricks
US9464550B2 (en) 2012-12-21 2016-10-11 Caterpillar Inc. System and method for retaining aftertreatment bricks
US9050559B2 (en) 2013-03-01 2015-06-09 Caterpillar Inc. System and method for accommodating aftertreatment bricks

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