DE9210836U1 - Device for catalytic cleaning of exhaust gases from internal combustion engines - Google Patents
Device for catalytic cleaning of exhaust gases from internal combustion enginesInfo
- Publication number
- DE9210836U1 DE9210836U1 DE9210836U DE9210836U DE9210836U1 DE 9210836 U1 DE9210836 U1 DE 9210836U1 DE 9210836 U DE9210836 U DE 9210836U DE 9210836 U DE9210836 U DE 9210836U DE 9210836 U1 DE9210836 U1 DE 9210836U1
- Authority
- DE
- Germany
- Prior art keywords
- cone
- wide
- housing
- exhaust gases
- ceramic fleece
- 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.)
- Expired - Lifetime
Links
- 239000007789 gas Substances 0.000 title claims description 18
- 238000004140 cleaning Methods 0.000 title claims description 3
- 238000002485 combustion reaction Methods 0.000 title claims description 3
- 230000003197 catalytic effect Effects 0.000 title description 2
- 239000003054 catalyst Substances 0.000 claims description 20
- 239000000919 ceramic Substances 0.000 claims description 18
- 239000002184 metal Substances 0.000 claims description 7
- 230000003014 reinforcing effect Effects 0.000 claims description 2
- 230000010349 pulsation Effects 0.000 description 5
- 239000011324 bead Substances 0.000 description 3
- 239000011888 foil Substances 0.000 description 3
- 239000012774 insulation material Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 1
- 238000009421 internal insulation Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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
- F01N3/2857—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 the mats or gaskets being at least partially made of intumescent material, e.g. unexpanded vermiculite
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
- F01N3/2839—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration
- F01N3/2853—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration using mats or gaskets between catalyst body and housing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/14—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having thermal insulation
-
- 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
- F01N2260/00—Exhaust treating devices having provisions not otherwise provided for
- F01N2260/10—Exhaust treating devices having provisions not otherwise provided for for avoiding stress caused by expansions or contractions due to temperature variations
-
- 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
- F01N2310/00—Selection of sound absorbing or insulating material
- F01N2310/02—Mineral wool, e.g. glass wool, rock wool, asbestos or the like
-
- 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
- F01N2350/00—Arrangements for fitting catalyst support or particle filter element in the housing
- F01N2350/02—Fitting ceramic monoliths in a metallic housing
- F01N2350/06—Fitting ceramic monoliths in a metallic housing with means preventing gas flow by-pass or leakage
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)
Description
Die Erfindung betrifft Vorrichtungen zum kataLytisehen Reinigen der Abgase von Verbrennungsmotoren gemäß dem Oberbegriff des Anspruchs 1.The invention relates to devices for catalytic cleaning of exhaust gases from internal combustion engines according to the preamble of claim 1.
Abgaskatalysatoren dieser Konstruktion sind bekannt, beispielsweise aus der DE-A-37 29 994, der DE-U-92 02 554 oder auch der EP-A-O 450 348. Sie sind auch in großen Stückzahlen im Einsatz. Die Innenkonen haben die Aufgabe, eine auf der Innenseite des Katalysatorgehäuses angebrachte Isolierschicht gegen die Abgase und deren Pulsationen zu schützen. Die Innenkonen werden üblicherweise im Bereich ihrer engen Öffnung mit dem Gehäuse verschweißt. Das weite Ende der Innenkonen bleibt frei beweglich, um Spannungen, ausgelöst durch die unterschiedlichen Temperaturen von Innenkonus und Gehäuse, zu vermeiden. Zwischen Innenkonusende und Katalysatorkörper muß notwendigerweise ein Abstand eingehalten werden, um die Ausdehnungsdifferenzen ausgleichen zu können, über diesen Spalt können die AbgaspuIsationen hinter den Innenkonus und hinter den Kata Iaysatorkörper gelangen; um dies zu verhindern, wird versucht, den Spalt mit geeigneten Mitteln abzudecken, beispielsweise mit Hilfe von Drahtgestrickringen, mit Metallfolien und dergleichen mehr.Exhaust gas catalysts of this design are known, for example from DE-A-37 29 994, DE-U-92 02 554 or EP-A-0 450 348. They are also used in large numbers. The inner cones have the task of protecting an insulating layer attached to the inside of the catalyst housing against the exhaust gases and their pulsations. The inner cones are usually welded to the housing in the area of their narrow opening. The wide end of the inner cone remains freely movable in order to avoid tensions caused by the different temperatures of the inner cone and the housing. A distance must necessarily be maintained between the end of the inner cone and the catalyst body in order to be able to compensate for the differences in expansion; the exhaust gas pulsations can reach behind the inner cone and behind the catalyst body via this gap; To prevent this, attempts are made to cover the gap with suitable means, for example with the help of wire mesh rings, metal foils and the like.
Die Erfahrung hat jedoch gezeigt, daß alle diese Konstruktionen umständlich, teuer und selten zuverlässig wirksam sind. Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, eine Vorrichtung der eingangs genannten Art anzugeben, bei der diese Probleme drastisch reduziert, ja sogar völlig beseitigt sind.However, experience has shown that all of these designs are cumbersome, expensive and rarely reliably effective. The aim of the present invention is therefore to provide a device of the type mentioned at the outset in which these problems are drastically reduced or even completely eliminated.
Diese Aufgabe wird gelöst durch eine gattungsgemäße Vorrichtung mit den Merkmalen gemäß Kennzeichen des Anspruchs 1.This object is achieved by a generic device with the features according to the characterizing part of claim 1.
Es hat sich völlig überraschenderweise herausgestellt, daß eine starke Pressung des als Isoliermaterial verwendeten Keramikvlieses an der Übergangsstelle zum Kata lysator körper genügt, um zu verhindern, daß das Isoliermaterial ausgeblasen wird. Eine starke Pressung des Isoliermaterials im Sinne der vorliegenden Erfindung liegt typischerweise dann vor, wenn die Dicke des Keramikvlieses von ungepreßt beispielsweise 6 mm auf 1,5 bis 2 mm reduziert ist, d. h. wenigstens um den Faktor 3. Derart mechanisch zusammengepreßtes Keramikvlies bietet überraschenderweise eine optimale Beständigkeit gegen Abgaspu Isationen. Die bisher verwendeten Hilfsteile wie Drahtringe, Metallfolien, Blechringe usw. können völlig entfallen.It has been found, quite surprisingly, that a strong compression of the ceramic fleece used as insulation material at the transition point to the catalyst body is sufficient to prevent the insulation material from being blown out. A strong compression of the insulation material in the sense of the present invention typically occurs when the thickness of the ceramic fleece is reduced from unpressed, for example 6 mm, to 1.5 to 2 mm, i.e. by at least a factor of 3. Surprisingly, ceramic fleece mechanically compressed in this way offers optimal resistance to exhaust gas pulsations. The auxiliary parts used up to now, such as wire rings, metal foils, sheet metal rings, etc., can be completely eliminated.
Die erfindungsgemäß benötigte starke Pressung des Keramikvlieses läßt sich auf unterschiedliche Arten realisieren.The strong pressing of the ceramic fleece required according to the invention can be achieved in different ways.
Gemäß einer ersten Variante wird das Keramikvlies im Bereich des weiten Konusendes wenigstens einmal, vorzugsweise mehrfach umgeschlagen.According to a first variant, the ceramic fleece is folded over at least once, preferably several times, in the area of the wide cone end.
Gemäß einer zweiten Variante wird das weite Konusende mit einer Sicke ausgerüstet, die einwärts oder auswärts gerichtet sein kann, je nach der Form des Gehäuses.According to a second variant, the wide cone end is equipped with a bead that can be directed inwards or outwards, depending on the shape of the housing.
Gemäß einer dritten Variante wird das Gehäuse im Bereich des weiten Konusendes einwärts gesickt.According to a third variant, the housing is beaded inwards in the area of the wide cone end.
Gemäß einer vierten Variante ist im Bereich des weiten Konusendes ein Verstärkungsring auf der Außenseite des Innenkonus und/oder der Innenseite des Gehäuses befestigt.According to a fourth variant, a reinforcing ring is attached to the outside of the inner cone and/or the inside of the housing in the area of the wide cone end.
Es versteht sich, daß alle diese Konstruktionsvarianten auch sinnvoll gemischt werden können. Dadurch wird esIt goes without saying that all of these design variants can also be mixed in a meaningful way. This makes it
beispielsweise möglich, die thermische Ausdehnungsdifferenz zwischen Innenkonus und Gehäuse dazu zu benutzen, die Pressung des Keramikv Lieses in Abhängigkeit von der Temperatur der Abgase zeitweise zu erhöhen.For example, it is possible to use the thermal expansion difference between the inner cone and the housing to temporarily increase the pressure of the ceramic fleece depending on the temperature of the exhaust gases.
Gemäß einer bevorzugten Ausgestaltung der Erfindung übergreift das weite Konusende den Katalysatorkörper. Derartige Konstruktionen und ihre Vorteile sind prinzipiell bekannt.According to a preferred embodiment of the invention, the wide cone end extends over the catalyst body. Such constructions and their advantages are known in principle.
Anhand der Zeichnung soll die Erfindung in Form von Ausführungsbeispielen näher erläutert werden. Es zeigen jeweils in schematiseher, auszugsweiser Darstellung:The invention will be explained in more detail in the form of exemplary embodiments using the drawings. They show each in a schematic, excerpted representation:
Fig. 1 einen Längsschnitt durch einen ersten Abgaskatalysator,Fig. 1 is a longitudinal section through a first exhaust gas catalyst,
Fig. 2 einen Längsschnitt durch einen zweiten Abgaskatalysator,Fig. 2 a longitudinal section through a second exhaust gas catalyst,
Fig. A einen Ausschnitt aus einem vierten Abgaskatalysator undFig. A a section of a fourth exhaust gas catalyst and
Fig. 1 zeigt einen Längsschnitt durch eine Hälfte eines ersten Abgaskatalysators. Man erkennt ein metallisches Gehäuse 1, in dem mit Hilfe einer Quellmatte 6 ein Katalysatorkörper 3 fixiert ist. Vervollständigt ist das Gehäuse 1 durch einen Außenkonus 2, an dessen engem Ende ein abgasführendes Rohr anschließbar ist.Fig. 1 shows a longitudinal section through one half of a first exhaust gas catalyst. A metallic housing 1 can be seen in which a catalyst body 3 is fixed with the aid of a swelling mat 6. The housing 1 is completed by an outer cone 2, to the narrow end of which an exhaust gas-carrying pipe can be connected.
Zur thermischen und akustischen Isolierung ist der Außenkonus 2 mit einer innenLiegenden Isolierung 5 versehen.For thermal and acoustic insulation, the outer cone 2 is provided with an internal insulation 5.
Zum Schutz derselbe vor den heißen und stark pulsierenden Abgasen ist ein zusätzlicher Innenkonus 4 vorgesehen. Dieser ist an seinem engen Ende mit dem Außenkonus 2 verschweißt; das weite Ende des Innenkonus 4 endet vor der Stirnfläche des Katalysatorkörpers 3. Um die thermischen Ausdehnungsdifferenzen zwischen Außenkonus 2, Innenkonus 4 und Katalysatorkörper 3 ausgleichen zu können, muß zwischen Innenkonus 4 und Katalysatorkörper 3 einerseits sowie Außenkonus 2 bzw. Gehäuse 1 andererseits jeweils ein Spalt eingehalten werden.To protect it from the hot and strongly pulsating exhaust gases, an additional inner cone 4 is provided. This is welded to the outer cone 2 at its narrow end; the wide end of the inner cone 4 ends in front of the front face of the catalyst body 3. In order to be able to compensate for the thermal expansion differences between the outer cone 2, inner cone 4 and catalyst body 3, a gap must be maintained between the inner cone 4 and catalyst body 3 on the one hand and the outer cone 2 or housing 1 on the other.
üblicherweise wird dieser Spalt mit Hilfe von temperaturbeständigen, elastischen Abdichtungsmitteln wie Drahtgestrickringen, Blechringen, Metallfolien und dergleichen überbrückt. Diese Hilfsmittel sollen verhindern, daß die pulsierenden Abgase in den Raum zwischen Innenkonus 4 und Außenkonus 2 gelangen und dort das Isoliermaterial zerstören. Die in Fig. 1 dargestellte Konstruktion nach der Erfindung kommt jedoch ohne derartige Hilfsmittel aus. Dies wird dadurch ermöglicht, daß als Isoliermaterial 5 Keramikvlies verwendet wird, welches durch die ausgestellte Form des weiten Endes 14 des Innenkonus 4 stark, d. h. auf wenigstens etwa ein Drittel bis ein Viertel seiner Normaldicke zusammengepreßt wird. Die Beständigkeit des so stark gepreßten Keramikvlieses gegen Temperatur und Pulsationen der Abgase ist hervorragend, wie die durchgeführten Test belegen. Es ist so erstmals möglich, ohne Hilfsteile eine höhere Beständigkeit und eine einfachere Montage zu gewährleisten.This gap is usually bridged with the help of temperature-resistant, elastic sealing means such as wire mesh rings, sheet metal rings, metal foils and the like. These aids are intended to prevent the pulsating exhaust gases from entering the space between the inner cone 4 and the outer cone 2 and destroying the insulating material there. However, the construction according to the invention shown in Fig. 1 does not require such aids. This is made possible by the fact that ceramic fleece is used as insulating material 5, which is compressed strongly, i.e. to at least about a third to a quarter of its normal thickness, by the flared shape of the wide end 14 of the inner cone 4. The resistance of the ceramic fleece pressed in this way to temperature and pulsations of the exhaust gases is excellent, as the tests carried out show. This makes it possible for the first time to guarantee greater resistance and easier assembly without auxiliary parts.
Fig. 2 zeigt eine weitere Ausführungsform. Hier übergreift das weite Ende 24 des Innenkonus 4 den Katalysat&ogr;rkörper 3, wodurch der Schutz gegen AbgaspuIsationen verbessert wird. Im Bereich des weiten Konusendes 24 ist das Keramikvlies auf etwa ein Drittel seiner normalen Stärke zusammengepreßt.Fig. 2 shows a further embodiment. Here, the wide end 24 of the inner cone 4 overlaps the catalyst body 3, which improves the protection against exhaust gas pulsations. In the area of the wide cone end 24, the ceramic fleece is compressed to about a third of its normal thickness.
Fig. 3 zeigt eine dritte Variante. Das weite Ende 34 des Innenkonus 4 übergreift wieder den Katalysatorkörper 3. Gehäuse 1 und Innenkonusende 34 sind mit umlaufenden Sicken 20, 30 versehen, zwischen denen das KeramikvLies 35 stark zusammengepreßt wird. Sobald zwischen Innenkonus 4 und Außenkonus 2 eine Temperaturdifferenz auftritt, verschieben die Sicken 20, 30 sich gegeneinander, wodurch die Pressung des Keramikvlieses 35 noch verstärkt wird.Fig. 3 shows a third variant. The wide end 34 of the inner cone 4 again overlaps the catalyst body 3. The housing 1 and the inner cone end 34 are provided with circumferential beads 20, 30, between which the ceramic fleece 35 is strongly pressed together. As soon as a temperature difference occurs between the inner cone 4 and the outer cone 2, the beads 20, 30 move against each other, whereby the pressing of the ceramic fleece 35 is further increased.
Fig. 4 zeigt eine vierte Variante. Hier ist das weite Ende 44 des Innenkonus 4 im Durchmesser erweitert, so daß das Keramikvlies 45 an dieser Stelle stark zusammengepreßt wird.Fig. 4 shows a fourth variant. Here, the wide end 44 of the inner cone 4 is enlarged in diameter so that the ceramic fleece 45 is strongly compressed at this point.
Fig. 5 schließlich zeigt als fünfte Variante, daß die erforderliche starke Pressung des Keramikvlieses 5 im Bereich des weiten Endes 54 des Innenkonus 4 auch durch einen ein- oder mehrfachen Umschlag 55 des Keramikvlieses 5 erreicht werden kann.Finally, Fig. 5 shows as a fifth variant that the required strong pressing of the ceramic fleece 5 in the area of the wide end 54 of the inner cone 4 can also be achieved by a single or multiple fold 55 of the ceramic fleece 5.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE9210836U DE9210836U1 (en) | 1992-08-13 | 1992-08-13 | Device for catalytic cleaning of exhaust gases from internal combustion engines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE9210836U DE9210836U1 (en) | 1992-08-13 | 1992-08-13 | Device for catalytic cleaning of exhaust gases from internal combustion engines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE9210836U1 true DE9210836U1 (en) | 1992-10-01 |
Family
ID=6882631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE9210836U Expired - Lifetime DE9210836U1 (en) | 1992-08-13 | 1992-08-13 | Device for catalytic cleaning of exhaust gases from internal combustion engines |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE9210836U1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0724070A1 (en) * | 1995-01-26 | 1996-07-31 | Ngk Insulators, Ltd. | Honeycomb catalytic converter |
| EP0761939A1 (en) * | 1995-08-16 | 1997-03-12 | General Motors Corporation | Manifold converter |
| EP1149992A1 (en) * | 2000-04-26 | 2001-10-31 | J. Eberspächer GmbH & Co. | Exhaust assembly for an exhaust gas system, especially exhaust gas catalyst of modular construction for a motor vehicle |
| DE10350373A1 (en) * | 2002-10-29 | 2004-05-19 | Visteon Global Technologies, Inc., Dearborn | Seamless catalyst that has an internal heat shield |
| DE102004002537B4 (en) * | 2003-01-16 | 2006-09-07 | Automotive Components Holdings, LLC., Dearborn | Catalyst with integrated noise-insulating heat protection plate |
-
1992
- 1992-08-13 DE DE9210836U patent/DE9210836U1/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0724070A1 (en) * | 1995-01-26 | 1996-07-31 | Ngk Insulators, Ltd. | Honeycomb catalytic converter |
| US5782089A (en) * | 1995-01-26 | 1998-07-21 | Ngk Insulators, Ltd. | Honeycomb catalytic converter |
| EP0761939A1 (en) * | 1995-08-16 | 1997-03-12 | General Motors Corporation | Manifold converter |
| US6605259B1 (en) | 1995-08-16 | 2003-08-12 | Delphi Technologies, Inc. | Manifold converter |
| EP1149992A1 (en) * | 2000-04-26 | 2001-10-31 | J. Eberspächer GmbH & Co. | Exhaust assembly for an exhaust gas system, especially exhaust gas catalyst of modular construction for a motor vehicle |
| WO2001081736A1 (en) * | 2000-04-26 | 2001-11-01 | J. Eberspächer Gmbh & Co. | Exhaust device of an exhaust system, especially a modular vehicle catalyst |
| DE10350373A1 (en) * | 2002-10-29 | 2004-05-19 | Visteon Global Technologies, Inc., Dearborn | Seamless catalyst that has an internal heat shield |
| DE102004002537B4 (en) * | 2003-01-16 | 2006-09-07 | Automotive Components Holdings, LLC., Dearborn | Catalyst with integrated noise-insulating heat protection plate |
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