EP1659271B1 - Mounting device for a ceramic catalyst of an engine in a housing - Google Patents
Mounting device for a ceramic catalyst of an engine in a housing Download PDFInfo
- Publication number
- EP1659271B1 EP1659271B1 EP05021090A EP05021090A EP1659271B1 EP 1659271 B1 EP1659271 B1 EP 1659271B1 EP 05021090 A EP05021090 A EP 05021090A EP 05021090 A EP05021090 A EP 05021090A EP 1659271 B1 EP1659271 B1 EP 1659271B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- mounting device
- mountings
- mounting
- 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.)
- Not-in-force
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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
- F01N3/2875—Arrangements 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
-
- 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
- F01N3/2803—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
- F01N3/2825—Ceramics
- F01N3/2828—Ceramic multi-channel monoliths, e.g. honeycombs
-
- 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
- F01N2450/22—Methods or apparatus for fitting, inserting or repairing different elements by welding or brazing
Definitions
- the invention relates to a storage device for a ceramic catalyst of an internal combustion engine according to the preamble of claim 1.
- a storage device for a monolith for exhaust gas purification is known, which is held at end edges by means of rings of a wire mesh in a surrounding housing with an air gap. Furthermore, it is known to store ceramic catalysts in fiber mats and / or in fiber-containing swelling mats.
- a catalyst is known which is held in a housing via a bearing made of wire mesh another bearing made of a sheet metal sleeve. Between the catalyst and the housing, an air gap is provided.
- a catalyst previously known, which is held in a housing via ring elements or the like elements at a distance from this.
- the ring elements are preferably made of a ceramic material.
- a catalyst is known which is mounted in a housing by means of an elastic fiber glued to the housing.
- the object of the invention is to provide an improved storage device for a ceramic catalyst of an internal combustion engine, which is to be mounted in a simple manner without damaging the catalyst, moreover, a durable elastic storage ensures that the storage device does not contain soluble fibrous materials, is environmentally friendly and sorted can be separated.
- the bearings made of high temperature resistant adhesives produces a temperature-resistant, mechanically durable and gas-tight and permanently elastic connection between a ceramic catalyst and a surrounding housing.
- This is essentially achieved by the upstream and downstream of an exhaust gas flow of the engine arranged two bearings of the ceramic catalyst in the housing or in the housing shell made of high temperature resistant elastic adhesive elements, via which the ceramic catalyst the air gap and Tolerances bridged fixed storable.
- consisting of high temperature resistant existing two layers of the ceramic catalyst in the housing each consisting of at least one ring element, which are arranged around the catalyst and support abutting the housing, wherein the one downstream or upstream ring element of the storage against exhaust gases is made gas-tight.
- the mechanically durable adhesive element achieved even under special conditions, such as in an off-road operation of the vehicle especially in the underbody area by rockfall and Aufsetzer or vibrations, which occurs by terrain excitation at poor roads and general micro-movements, in particular by changing the charge of the engine, the required life.
- These permanently elastic adhesive elements also compensate for different thermal expansions of the ceramic carrier and the housing made of stainless steel within the width of the adhesive elements.
- the adhesive element is temperature resistant and permanently acts as a fixed bearing of the catalyst storage. Also under special conditions, such as in a terrain operation, especially in the underbody area when wading through water penetration as well as by temperature shock from the outside.
- the upstream or downstream arranged consisting of a high temperature resistant adhesive element storage consists of at least designed as a three-point bearing storage and the individual bearing elements are each arranged at an angle of about 120 ° to each other between the catalyst and the housing.
- a floating bearing can be provided, which can be arranged at least upstream of the exhaust stream but also downstream of the exhaust stream and which is supplemented by the further gas-tight bearing.
- the elastic support by the elastic adhesive rings or by the elastic adhesive elements of the ceramic catalyst according to an embodiment of the invention in cross-section oval or irregularly shaped.
- the adhesive elements can create a simple way of this oval shape due to the elasticity. This makes it possible to easily adapt the storage to the contour of the catalyst.
- the adhesive element has a composition that absorbs a maximum temperature of 1700 ° C and consists of felted glass fibers and Keramikikan sculpture.
- the floating bearing for centering by two high temperature resistant elastic adhesive elements.
- An annular gap between the catalyst and the housing, as well as between fixed and floating bearings acts as air gap insulation.
- the housing protects against mechanical damage from outside. The heat transfer to the outside is minimized for a quick start of the catalyst and for a lower vehicle or engine compartment heating. A thermal shock from the outside is not initiated directly on the sensitive catalyst.
- a ceramic catalyst 1 is in a housing 2 or within a housing shell in bearings 3, 4; 12, 13 which are arranged upstream and downstream of an exhaust gas stream 5, 5 a of an exhaust gas system at front side edges 6 and 7 of the catalytic converter 1 in the housing 2.
- the bearings 3, 4 are made of high temperature resistant permanently elastic adhesive elements, which consist of a circular ring running all around the catalyst 1. At least one of these bearings 3, 4 may also consist of so-called partial bearing elements A, B, C, which are arranged at circular cross sections in each case at an angle of about 120 ° to each other and form a so-called three-point bearing. This is in Fig. 1 rotated by 90 ° to the catalyst 1 shown on a dot-dash line K, which represents the outline of the catalyst 1. In other cross-sectional shapes then a corresponding number of bearings is provided.
- One of the bearings 3 or 4 is in each case as a so-called floating bearing and the other bearing is then designed as a so-called fixed bearing.
- the fixed bearing is made of a gas-tight adhesive element, so that no unpurified exhaust gas can bypass the catalyst 1 between the ceramic carrier and the housing 2.
- the floating bearing is in the case shown, the bearing element 3, this may also consist of two elastic adhesive elements, wherein the one adhesive element in closed ring shape then essentially serves for centering of the catalyst 1 in the housing 2.
- the housings can be designed longitudinally as profile tubes or in half shell construction.
- the adhesive elements have such a composition of felted glass fibers and ceramic components that a temperature of up to a maximum of 1700 ° C. can be recorded.
- the upstream bearing 3 is arranged on the one hand in a corner E of a transition of the housing 2 to a funnel-shaped connecting pipe 8, 8a to the exhaust pipe R and on the other hand, a corner edge 9 of the ceramic catalyst 1 encompassing.
- the fixed bearing 4 is also arranged on the one hand in a corner region E1 of a funnel-shaped connecting tube 10 to the exhaust pipe R1 and on the other hand, a corner edge 11 of the ceramic catalyst 1 encompassing.
- the ceramic catalyst 1 may also have an oval-shaped cross-section or irregularly shaped cross-sections, and the elastic bearing elements 3, 4 abut easily in the corner region E, E1 and support the catalyst 1 in the housing 2.
- Drahtgestrickring used in combination with the adhesive member as storage this can be connected via a ceramic-metal soldering to the catalyst 1 and / or the housing 2.
Description
Die Erfindung bezieht sich auf eine Lagerungsvorrichtung für einen Keramikkatalysator einer Brennkraftmaschine nach dem Oberbegriff des Anspruchs 1.The invention relates to a storage device for a ceramic catalyst of an internal combustion engine according to the preamble of claim 1.
Aus der
Aufgabe der Erfindung ist es, eine verbesserte Lagerungsvorrichtung für einen Keramikkatalysator einer Brennkraftmaschine zu schaffen, die in einfacher Weise ohne Beschädigung des Katalysators zu montieren ist, darüber hinaus eine dauerhaltbare elastische Lagerung gewährleistet, wobei die Lagerungsvorrichtung keine lösbaren faserhaltigen Stoffe umfasst, umweltfreundlich ist und sortenrein getrennt werden kann.The object of the invention is to provide an improved storage device for a ceramic catalyst of an internal combustion engine, which is to be mounted in a simple manner without damaging the catalyst, moreover, a durable elastic storage ensures that the storage device does not contain soluble fibrous materials, is environmentally friendly and sorted can be separated.
Diese Aufgabe wird durch die Merkmale des Anspruchs 1 gelöst. Weitere vorteilhafte Merkmale beinhalten die Unteransprüche.This object is solved by the features of claim 1. Further advantageous features include the subclaims.
Die mit der Erfindung hauptsächlich erzielten Vorteile bestehen darin, dass die Lagerungen aus hochtemperaturbeständigen Klebstoffen eine temperaturbeständige, mechanisch dauerhafte und gasdichte sowie dauerelastische Verbindung zwischen einem Keramikkatalysator und einem umgebenden Gehäuse herstellt. Dies wird im Wesentlichen dadurch erreicht, indem die stromauf und stromab eines Abgasstromes der Brennkraftmaschine angeordneten beiden Lagerungen des Keramikkatalysators im Gehäuse oder im Gehäusemantel aus hochtemperaturbeständigen elastischen Klebstoffelementen bestehen, über welche der Keramikkatalysator dem Luftspalt und Toleranzen überbrückend festgehalten lagerbar ist. Des Weiteren sind die aus hochtemperaturbeständigen bestehenden beiden Lagerungen des Keramikkatalysators im Gehäuse jeweils aus mindestens einem Ringelement bestehend, die rundherum des Katalysators angeordnet und am Gehäuse abstützend anliegend sind, wobei das eine stromab oder stromauf angeordnete Ringelement der Lagerung gegen Abgase gasdicht ausgeführt ist. Hierdurch wird in vorteilhafter Weise nach der Erfindung eine Lagerung des empfindlichen Keramikträgers ohne lösliche faserhaltige Stoffe erzielt und es wird darüber hinaus ein Umströmen des Katalysators durch ungereinigtes Abgas verhindert.The advantages achieved by the invention are that the bearings made of high temperature resistant adhesives produces a temperature-resistant, mechanically durable and gas-tight and permanently elastic connection between a ceramic catalyst and a surrounding housing. This is essentially achieved by the upstream and downstream of an exhaust gas flow of the engine arranged two bearings of the ceramic catalyst in the housing or in the housing shell made of high temperature resistant elastic adhesive elements, via which the ceramic catalyst the air gap and Tolerances bridged fixed storable. Furthermore, consisting of high temperature resistant existing two layers of the ceramic catalyst in the housing each consisting of at least one ring element, which are arranged around the catalyst and support abutting the housing, wherein the one downstream or upstream ring element of the storage against exhaust gases is made gas-tight. As a result, storage of the sensitive ceramic carrier without soluble fibrous substances is achieved in an advantageous manner according to the invention and it is also prevented from flowing around the catalyst by unpurified exhaust gas.
Das mechanisch dauerhaltbare Klebstoffelement erreicht auch bei besonderen Beanspruchungen, wie bei einem Geländebetrieb des Fahrzeugs vor allem im Unterbodenbereich durch Steinschlag und Aufsetzer oder bei Schwingungen, welche durch Geländeanregung bei Schlechtwegstrecken erfolgt und allgemeine Mikrobewegungen, insbesondere durch Ladungswechsel der Brennkraftmaschine die erforderliche Lebensdauer. Auch kompensieren diese dauerelastischen Klebstoffelemente unterschiedliche Wärmeausdehnungen des Keramikträgers und des Gehäuses aus Edelstahl innerhalb der Breite der Klebstoffelemente. Des Weiteren ist das Klebstoffelement temperaturbeständig und fungiert dauerhaft als Festlager der Katalysatorlagerung. Auch bei besonderen Beanspruchungen, wie bei einem Geländebetrieb vor allem im Unterbodenbereich beim Waten durch eindringendes Wasser sowie durch Temperaturschock von außen.The mechanically durable adhesive element achieved even under special conditions, such as in an off-road operation of the vehicle especially in the underbody area by rockfall and Aufsetzer or vibrations, which occurs by terrain excitation at poor roads and general micro-movements, in particular by changing the charge of the engine, the required life. These permanently elastic adhesive elements also compensate for different thermal expansions of the ceramic carrier and the housing made of stainless steel within the width of the adhesive elements. Furthermore, the adhesive element is temperature resistant and permanently acts as a fixed bearing of the catalyst storage. Also under special conditions, such as in a terrain operation, especially in the underbody area when wading through water penetration as well as by temperature shock from the outside.
Ferner ist nach der Erfindung vorgesehen, dass die stromauf oder stromab angeordnete aus einem hochtemperaturbeständigen Klebstoffelement bestehende Lagerung aus einer mindestens als Dreipunktlagerung ausgeführte Lagerung besteht und die einzelnen Lagerelemente jeweils unter einem Winkel von etwa 120° zueinander zwischen dem Katalysator und dem Gehäuse angeordnet sind. Durch diese Anordnung wird in vorteilhafter Weise nach der Erfindung erreicht, dass ein einfach einzusetzender Katalysator ins Gehäuse erzielt wird, da nur drei Berührungspunkte zum Gehäuse bestehen.It is also provided according to the invention that the upstream or downstream arranged consisting of a high temperature resistant adhesive element storage consists of at least designed as a three-point bearing storage and the individual bearing elements are each arranged at an angle of about 120 ° to each other between the catalyst and the housing. By this arrangement is achieved in an advantageous manner according to the invention that an easy-to-use catalyst is achieved in the housing, since there are only three points of contact with the housing.
Damit der Katalysator bzw. das Gehäuse sich unter Wärmebelastung entsprechend ausdehnen kann, kann ein Loslager vorgesehen sein, welches zumindest stromauf des Abgasstromes aber auch stromab des Abgasstromes angeordnet sein kann und welches durch das weitere gasdichte Lager ergänzt wird.So that the catalyst or the housing can expand correspondingly under heat load, a floating bearing can be provided, which can be arranged at least upstream of the exhaust stream but also downstream of the exhaust stream and which is supplemented by the further gas-tight bearing.
Aufgrund der elastischen Lagerung durch die elastischen Klebstoffringe bzw. durch die elastischen Klebstoffelemente kann der Keramikkatalysator nach einer Ausführung der Erfindung im Querschnitt ovalförmig oder unregelmäßig geformt ausgeführt sein. Die Klebstoffelemente können sich aufgrund der Elastizität an diese Ovalform in einfacher Weise anlegen. Hierdurch ist eine problemlose Anpassung der Lagerung an die Umrissform des Katalysators möglich.Due to the elastic support by the elastic adhesive rings or by the elastic adhesive elements of the ceramic catalyst according to an embodiment of the invention in cross-section oval or irregularly shaped. The adhesive elements can create a simple way of this oval shape due to the elasticity. This makes it possible to easily adapt the storage to the contour of the catalyst.
Das Klebstoffelement weist eine Zusammensetzung auf, die eine Temperatur bis maximal 1700°C aufnimmt und aus gefilzten Glasfasern und Keramikanteilen besteht.The adhesive element has a composition that absorbs a maximum temperature of 1700 ° C and consists of felted glass fibers and Keramikikanteilen.
In vorteilhafter Weise nach der Erfindung kann das Loslager zur Zentrierung durch zwei hochtemperaturbeständige elastische Klebstoffelemente bestehen.Advantageously, according to the invention, the floating bearing for centering by two high temperature resistant elastic adhesive elements.
Durch die Lagerung des Keramikkatalysators im Gehäuse über hochtemperaturbeständige elastische Klebstoffelemente entfällt ein vorheriges Vermessen jedes einzelnen Keramikträgers bzw. Gehäuses, da der Klebstoff Toleranzen überbrückt. Ein trägerbezogenes Kalibrieren des Gehäusemantels entfällt aus dem gleichen Grund. Funktionsbeeinträchtigungen durch z.B. fehlende Vorspannkräfte entfallen ebenfalls, da Beschädigungen beim Stopfen der Keramikträger mit umgelegter Fasermatte in den Gehäusemantel ausgeschlossen wird. Selbst bei der Montage, dem Betrieb und beim Recycling müssen keine weiteren Umweltschutz bzw. oder Arbeitsschutzvorkehrurigen getroffen werden, da die verwendeten Werkstoffe umweltfreundlich sind.By the storage of the ceramic catalyst in the housing via high temperature resistant elastic adhesive elements eliminates a prior measurement of each ceramic carrier or housing, since the adhesive bridges tolerances. A carrier-related calibration of the housing shell deleted for the same reason. Functional impairments due to, for example, missing preload forces are also eliminated, since damage during plugging of the ceramic carrier with umgelegtter Fiber mat is excluded in the housing shell. Even during assembly, operation and recycling, no further environmental or occupational health and safety precautions need to be taken, as the materials used are environmentally friendly.
Ein Ringspalt zwischen dem Katalysator und dem Gehäuse, sowie zwischen Fest- und Loslager wirkt als Luftspaltisolierung. Das Gehäuse schützt vor mechanischer Beschädigung von außen. Der Wärmeübergang nach außen ist für ein schnelles Anspringen des Katalysators und für eine geringere Fahrzeug- bzw. Motorraumaufheizung minimiert. Ein Thermoschock von außen wird nicht direkt auf den empfindlichen Katalysator eingeleitet.An annular gap between the catalyst and the housing, as well as between fixed and floating bearings acts as air gap insulation. The housing protects against mechanical damage from outside. The heat transfer to the outside is minimized for a quick start of the catalyst and for a lower vehicle or engine compartment heating. A thermal shock from the outside is not initiated directly on the sensitive catalyst.
Ausführungsbeispiele der Erfindung sind in den Zeichnungen dargestellt und werden im Folgenden näher beschrieben.Embodiments of the invention are illustrated in the drawings and will be described in more detail below.
Es zeigen
- Fig. 1
- eine erste Ausführung von Lagerungen für einen Katalysator mit Klebstoffelementen bzw. mit Klebstoffelementen und Drahtgestrickringen und
- Fig. 2
- eine weitere nicht beanspruchte Ausführung von Lagerungen für einen Keramikkatalysator über elastisch ausgebildete ringförmige Formteile aus Metall.
- Fig. 1
- a first embodiment of bearings for a catalyst with adhesive elements or with adhesive elements and Drahtgestrickringen and
- Fig. 2
- another not claimed embodiment of bearings for a ceramic catalyst via elastically formed annular shaped parts made of metal.
Ein Keramikkatalysator 1 ist in einem Gehäuse 2 bzw. innerhalb eines Gehäusemantels in Lagerungen 3, 4; 12, 13 gehalten, die stromauf und stromab eines Abgasstromes 5, 5a einer Abgasanlage an Stirnseitenkanten 6 und 7 des Katalysators 1 diesen übergreifend im Gehäuse 2 angeordnet sind.A ceramic catalyst 1 is in a
Die Lagerungen 3, 4 bestehen aus hochtemperaturbeständigen dauerelastischen Klebstoffelementen, die aus einem rundum des Katalysators 1 verlaufenden geschlossenen Ring bestehen. Mindestens einer dieser Lagerungen 3, 4 kann auch aus sogenannten Teillagerelementen A, B, C bestehen, die bei Kreisquerschnitten jeweils unter einen Winkel von etwa 120° zueinander angeordnet sind und eine sogenannte Dreipunktlagerung bilden. Diese ist in
Eine der Lagerungen 3 oder 4 ist jeweils als sogenanntes Loslager und das weitere Lager ist dann als sogenanntes Festlager ausgeführt. In jedem Fall ist das Festlager aus einem gasdichten Klebstoffelement bestehend, so dass kein ungereinigtes Abgas den Katalysator 1 zwischen dem Keramikträger und dem Gehäuse 2 umgehen kann. Das Loslager ist in dem gezeigten Fall das Lagerelement 3, dies kann auch aus zwei elastischen Klebstoffelementen bestehen, wobei das eine Klebstoffelement in geschlossener Ringform dann im Wesentlichen zur Zentrierung des Katalysators 1 im Gehäuse 2 dient.One of the
Die Gehäuse können längs als Profilrohre oder in Halbschalenbauweise ausgeführt sein.The housings can be designed longitudinally as profile tubes or in half shell construction.
Die Klebstoffelemente weisen eine solche Zusammensetzung aus gefilzten Glasfasern und Keramikanteilen auf, dass eine Temperatur bis zu maximal 1700°C aufgenommen werden kann.The adhesive elements have such a composition of felted glass fibers and ceramic components that a temperature of up to a maximum of 1700 ° C. can be recorded.
Wie in der Schnittzeichnung
Nach einer Ausführung kann der Keramikkatalysator 1 statt eines kreisförmigen Querschnitts auch einen ovalförmigen Querschnitt oder auch unregelmäßig geformte Querschnitte aufweisen und die elastischen Lagerelemente 3, 4 legen sich problemlos im Eckbereich E, E1 an und stützen den Katalysator 1 im Gehäuse 2 ab.According to one embodiment, instead of having a circular cross-section, the ceramic catalyst 1 may also have an oval-shaped cross-section or irregularly shaped cross-sections, and the elastic bearing
Bei der Verwendung eines in Kombination mit dem Klebstoffelement als Lagerung verwendeten Drahtgestrickring kann dieser über eine Keramik-Metall-Lötung mit dem Katalysator 1 und/oder dem Gehäuse 2 verbunden werden.When using a Drahtgestrickring used in combination with the adhesive member as storage this can be connected via a ceramic-metal soldering to the catalyst 1 and / or the
Claims (6)
- Mounting device for a ceramic catalytic converter (1) of an internal combustion engine in a surrounding housing (2), which mounting device has elastic mountings (3, 4) which are supported in the housing and hold the ceramic catalytic converter (1) with an air gap (L) between the mountings (3, 4), with the catalytic converter (1) being mounted in a fixedly held manner in the housing (2) with an air gap (L) by means of at least two mountings (3, 4) which are arranged upstream and downstream in an exhaust-gas flow (5, 5a), with the mountings being composed of at least one annular element and said mountings (3, 4) being arranged around the catalytic converter (1) and bearing in a supporting fashion against the housing (2), with at least one of the upstream-arranged annular elements of the mounting (3, 4) being formed so as to be gas-tight with respect to exhaust gases,
characterized in that
the mountings (3, 4) are composed of a high-temperature-resistant adhesive element. - Mounting device according to Claim 1, characterized in that a mounting (3a) composed of the high-temperature-resistant adhesive elements is composed of at least one three-point mounting with mount elements (A, B and C), and said mount elements (A, B and C) are arranged, in a circular cross section, in each case at an angle of approximately 120° with respect to one another between the catalytic converter (1) and the housing (2).
- Mounting device according to Claims 1 or 2, characterized in that the mounting (3) arranged upstream is designed as a floating or fixed mount and the further mounting (4) arranged downstream is designed as a fixed or floating mount.
- Mounting device according to one of the preceding claims, characterized in that the catalytic converter (1) is composed of any desired cross section and is held in the housing (2) by means of the mountings (3, 4; 12, 13) upstream and downstream in the exhaust-gas flow (5, 5a).
- Mounting device according to one of the preceding claims, characterized in that the floating mount (3), for centring, is composed of two high-temperature-resistant elastic adhesive elements.
- Mounting device according to one of the preceding claims, characterized in that the adhesive element (3, 4) has a composition which accommodates a temperature of up to a maximum of 1700°C.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200410055869 DE102004055869A1 (en) | 2004-11-19 | 2004-11-19 | Storage device for a ceramic catalyst of an internal combustion engine in a housing |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1659271A2 EP1659271A2 (en) | 2006-05-24 |
| EP1659271A3 EP1659271A3 (en) | 2006-06-07 |
| EP1659271B1 true EP1659271B1 (en) | 2010-12-15 |
Family
ID=35781417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP05021090A Not-in-force EP1659271B1 (en) | 2004-11-19 | 2005-09-28 | Mounting device for a ceramic catalyst of an engine in a housing |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP1659271B1 (en) |
| DE (2) | DE102004055869A1 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3975826A (en) * | 1971-12-14 | 1976-08-24 | Tenneco Inc. | Catalytic converter for exhaust gases |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2243251B2 (en) | 1972-09-02 | 1976-01-02 | Paul Gillet Gmbh, 6732 Edenkoben | Device for cleaning exhaust gases from internal combustion engines |
| US4118198A (en) * | 1973-06-25 | 1978-10-03 | Aktiebolaget Carl Munters | Catalytic purifier unit |
| US3975836A (en) | 1975-03-31 | 1976-08-24 | Broder Leonard J | Logic learning apparatus |
| DE3729994A1 (en) * | 1987-09-08 | 1989-03-16 | Bischoff Erhardt Gmbh Co Kg | Apparatus for the catalytic purification of exhaust gases |
| DE3930680A1 (en) * | 1989-09-14 | 1991-03-28 | Behr Gmbh & Co | Radial and axial movements of expanding exhaust purifier - matrix in housing are permitted by fixed and mobile supports incorporating spring strips |
| JP4652553B2 (en) * | 2000-11-10 | 2011-03-16 | イビデン株式会社 | Catalytic converter and manufacturing method thereof |
| DE10216272B9 (en) * | 2002-04-12 | 2006-05-18 | J. Eberspächer GmbH & Co. KG | Exhaust treatment arrangement for an internal combustion engine |
| DE10301233A1 (en) * | 2002-11-20 | 2004-07-22 | J. Eberspächer GmbH & Co. KG | Multibed catalytic converter for combustion engine exhaust gas stream especially for a motor vehicle has serial catalytic monoliths separated and supported by distance elements |
-
2004
- 2004-11-19 DE DE200410055869 patent/DE102004055869A1/en not_active Ceased
-
2005
- 2005-09-28 DE DE200550010674 patent/DE502005010674D1/en active Active
- 2005-09-28 EP EP05021090A patent/EP1659271B1/en not_active Not-in-force
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3975826A (en) * | 1971-12-14 | 1976-08-24 | Tenneco Inc. | Catalytic converter for exhaust gases |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1659271A3 (en) | 2006-06-07 |
| DE102004055869A1 (en) | 2006-05-24 |
| DE502005010674D1 (en) | 2011-01-27 |
| EP1659271A2 (en) | 2006-05-24 |
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