DE102004046444A1 - exhaust purifying member - Google Patents
exhaust purifying member Download PDFInfo
- Publication number
- DE102004046444A1 DE102004046444A1 DE102004046444A DE102004046444A DE102004046444A1 DE 102004046444 A1 DE102004046444 A1 DE 102004046444A1 DE 102004046444 A DE102004046444 A DE 102004046444A DE 102004046444 A DE102004046444 A DE 102004046444A DE 102004046444 A1 DE102004046444 A1 DE 102004046444A1
- Authority
- DE
- Germany
- Prior art keywords
- mat
- monolith
- exhaust gas
- gas purification
- blähmatte
- 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- Withdrawn
Links
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
- F01N3/2864—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 comprising two or more insulation layers
-
- 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
Abstract
Description
Die Erfindung betrifft ein Abgasreinigungselement wie etwa einen Abgaskatalysator oder einen Partikelfilter und insbesondere die Anordnung des entsprechenden Elementkörpers, beispielsweise eines Keramikkörpers oder Monolithen, in einem Gehäuse nach dem Oberbegriff des Anspruchs 1.The The invention relates to an exhaust gas purification element such as an exhaust gas catalyst or a particulate filter and in particular the arrangement of the corresponding Member body, for example, a ceramic body or monoliths, in a housing according to the preamble of claim 1.
Aus
der
Nachteilig an dem genannten Stand der Technik ist, dass die aus Silicaten, z.B. Aluminiumsilicaten, einem Blähglimmer, beispielsweise Vermiculit, und einem organischen Bindemittel zusammengesetzte Blähmatte nur bis ca. 750°C geeignet ist den Katalysatorkörper in dem Gehäuse zu lagern. Auch wenn sie durch ihre Ausdehnung bei Hitze in der Lage ist, die Spaltaufweitung zwischen Keramik und Blech zu kompensieren, ist die Verwendung einer solchen Matte nicht bei Dieselpartikelfiltern möglich, die erheblich heißer werden.adversely in the cited prior art is that of silicates, e.g. Aluminum silicates, an expanding mica, for example vermiculite, and an organic binder composite Blähmatte only up to 750 ° C suitable is the catalyst body in the case to store. Even though they are capable of expanding through heat is to compensate for the gap widening between ceramic and sheet metal, the use of such a mat is not with diesel particulate filters possible, the considerably hotter become.
Aus dem Stand der Technik ist weiter die Verendung einer Lagermatte aus polykristallinen Fasern bekannt. Derartige Fasern sind beispielsweise oxidische Fasern wie Aluminiumoxid. Da sie sich bei Hitze nicht ausdehnen, kann die erforderliche Klemmkraft zum Halten des Keramikkörpers nur durch die Elastizität der Fasermatte erreicht werden. Sie sind gegenüber Blähmatten leichter, druckfester, haben eine geringere Wärmeleitfähigkeit und sind bis ca. 1200 °C temperaturbeständig. Daher werden sie zur Lagerung des Keramikkörpers von Dieselpartikelfiltern eingesetzt. Nachteilig ist jedoch, dass die bei der Erwärmung entstehende Spaltaufweitung zwischen Keramik und Blech durch die Federwirkung der Matte nur bedingt kompensierbar ist.Out The prior art is further the use of a bearing mat made of polycrystalline fibers. Such fibers are for example oxide fibers such as alumina. Since they are not in heat expand, the required clamping force for holding the ceramic body can only through the elasticity the fiber mat can be achieved. They are lighter compared to inflatable mats, more pressure-resistant, have a lower thermal conductivity and are temperature resistant up to 1200 ° C. Therefore They are used for storage of the ceramic body of diesel particulate filters. The disadvantage, however, is that the gap expansion arising during the heating between ceramic and sheet metal by the spring action of the mat only conditionally compensated.
Es ist Aufgabe der vorliegenden Erfindung, ein Abgasreinigungselement wie einen Abgaskatalysator oder Partikelfilter mit einer hoch temperaturbeständigen Lagerung des Monolithen zu schaffen, bei dem auch bei hohen Temperaturen die sichere Lagerung des Monolithen in dem Gehäuse gewährleistet ist.It Object of the present invention, an exhaust gas purification element such as a catalytic converter or particle filter with a high temperature resistant storage of the monolith, in which even at high temperatures the safe storage of the monolith is guaranteed in the housing.
Diese Aufgabe wird durch einen Abgasreinigungselement mit den Merkmalen des Anspruchs 1. Die Unteransprüche geben weitere günstige Ausführungsbeispiele und Fortbildungen der Erfindung an.These Task is by an exhaust gas purification element with the features of claim 1. The dependent claims give more cheap embodiments and further developments of the invention.
Erfindungsgemäß ist bei einem Abgasreinigungselement mit einem Gehäuse und einem in das Gehäuse eingesetzten Monolithen, bei dem zur Fixierung des Monolithen eine Matte zwischen Gehäuse und Monolithen angeordnet ist, die Matte als Hybridmatte bestehend aus einer Blähmatte und einer Fasermatte aus oxidischen Fasern ausgelegt.According to the invention is at an exhaust gas purification element with a housing and an inserted into the housing Monoliths, in which for fixing the monolith a mat between casing and monoliths is arranged, the mat as a hybrid mat from a Blähmatte and a fiber mat of oxide fibers.
Die Kombination der zwei Matten vereint vorteilhaft die Eigenschaften beider Materialien. Die Blähmatte sorgt für eine große Haltekraft und dichtet den Monolith zugleich gegenüber dem Gehäuse ab, während die Fasermatte die notwendige Temperaturbeständigkeit aufweist.The Combination of the two mats advantageously combines the properties both materials. The inflatable mat takes care of a big Holding force and seals the monolith at the same time over the casing while off the fiber mat has the necessary temperature resistance.
Vorteilhafterweise liegt die Blähmatte am Gehäuse und die Fasermatte am Monolithen an. Dadurch kommt nur die hitzebeständigere Fasermatte mit dem heißen Monolith in Kontakt und die Blähmatte zur Ausgleichung des Spalts zwischen Gehäuse und Monolithen befindet sich im kühleren Außenbereich. Insbesondere können die Blähmatte und die Fasermatte miteinander verklebt sein.advantageously, is the inflatable mat on the housing and the fiber mat on the monolith. This only comes the more heat resistant Fiber mat with the hot Monolith in contact and the Blähmatte to adjust the gap between housing and monolith in the cooler Outdoors. In particular, you can the inflatable mat and the fiber mat glued together.
Voteilhafterweise sind die Fasern der Blähmatte und/oder der Fasermatte biologisch abbaubar und die Fasern der Blähmatte sowie der Fasermatte nicht lungengängig, indem sie einen Durchmesser > 3 μm und/oder ein Länge/Durchmesserverhältnis < 3 aufweisen. Dadurch wird die Verarbeitung, wie auch ein späteres Recycling erleichtert, da keine oder nur geringe Gesundheitsgefährdung besteht.Voteilhafterweise are the fibers of the Blähmatte and / or the fiber mat biodegradable and the fibers of the Blähmatte and the fiber mat is not respirable, by a diameter> 3 microns and / or have a length / diameter ratio <3. Thereby the processing, as well as a later recycling is facilitated, because there is little or no health risk.
In einer weiteren bevorzugten Ausführungsform besteht die Hybridmatte aus mehreren aufeinander folgenden Bläh- und Faserschichten.In a further preferred embodiment the hybrid mat consists of several consecutive expanding and fibrous layers.
Der Monolith kann ein Keramikträger eines Katalysators oder ein Keramikkörper eines Partikelfilters sein.Of the Monolith can be a ceramic carrier a catalyst or a ceramic body of a particulate filter be.
Die Erfindung wird nachfolgend in einem vorteilhaften Ausführungsbeispiel mithilfe der beigefügten Zeichnungen näher erläutert. In den Zeichnungen zeigt:The Invention will be described below in an advantageous embodiment using the attached Drawings closer explained. In the drawings shows:
Wenn
das Abgasreinigungselement sich im Betrieb erhitzt, so wird die
Blähmatte
Die
Kombination der Blähmatte
Die
Linie III zeigt die Haltekraft des erfindungsgemäßen Ausführungsbeispiels mit einer Hybridmatte
- 11
- Abgasreinigungselementexhaust purifying member
- 22
- Gehäusecasing
- 33
- Monolithmonolith
- 44
- Hybridmattehybrid mat
- 55
- Blähmatteexpanded mat
- 66
- Fasermattefiber mat
Claims (8)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004046444A DE102004046444A1 (en) | 2004-09-24 | 2004-09-24 | exhaust purifying member |
DE502005002139T DE502005002139D1 (en) | 2004-09-24 | 2005-07-26 | exhaust purifying member |
AT05016197T ATE380289T1 (en) | 2004-09-24 | 2005-07-26 | EMISSION CLEANING ELEMENT |
PL05016197T PL1640579T3 (en) | 2004-09-24 | 2005-07-26 | Exhaust gas cleaning element |
EP05016197A EP1640579B1 (en) | 2004-09-24 | 2005-07-26 | Exhaust gas cleaning element |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004046444A DE102004046444A1 (en) | 2004-09-24 | 2004-09-24 | exhaust purifying member |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102004046444A1 true DE102004046444A1 (en) | 2006-04-06 |
Family
ID=34981553
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102004046444A Withdrawn DE102004046444A1 (en) | 2004-09-24 | 2004-09-24 | exhaust purifying member |
DE502005002139T Active DE502005002139D1 (en) | 2004-09-24 | 2005-07-26 | exhaust purifying member |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE502005002139T Active DE502005002139D1 (en) | 2004-09-24 | 2005-07-26 | exhaust purifying member |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1640579B1 (en) |
AT (1) | ATE380289T1 (en) |
DE (2) | DE102004046444A1 (en) |
PL (1) | PL1640579T3 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1953357B1 (en) * | 2007-01-26 | 2009-08-26 | Ibiden Co., Ltd. | Sheet member and manufacturing method thereof, exhaust gas treating apparatus and manufacturing method thereof, and silencing device |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9311571U1 (en) * | 1993-08-03 | 1993-10-14 | H K O Isolier Und Textiltechni | Inflatable mat |
DE20210543U1 (en) * | 2002-07-06 | 2003-01-30 | Naturemind Ag Fuer Nachwachsen | Biodegradable fibre mat, incorporates fully biodegradable bonding agent and maximum proportion of regenerable raw materials |
EP1314866A2 (en) * | 1997-02-06 | 2003-05-28 | Minnesota Mining And Manufacturing Company | Multilayer intumescent sheet |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3432283A1 (en) | 1984-09-01 | 1986-03-13 | LEISTRITZ Maschinenfabrik GmbH, 8500 Nürnberg | CATALYTIC EXHAUST GAS DETECTING DEVICE |
US4863700A (en) * | 1985-04-16 | 1989-09-05 | Stemcor | Monolithic catalytic converter mounting arrangement |
US4929429A (en) * | 1988-02-11 | 1990-05-29 | Minnesota Mining And Manufacturing Company | Catalytic converter |
US5376341A (en) * | 1992-07-24 | 1994-12-27 | Corning Incorporated | Catalytic converter for motorcycles |
GB9615720D0 (en) * | 1996-07-26 | 1996-09-04 | Ici Plc | Composite mat |
-
2004
- 2004-09-24 DE DE102004046444A patent/DE102004046444A1/en not_active Withdrawn
-
2005
- 2005-07-26 AT AT05016197T patent/ATE380289T1/en not_active IP Right Cessation
- 2005-07-26 PL PL05016197T patent/PL1640579T3/en unknown
- 2005-07-26 EP EP05016197A patent/EP1640579B1/en active Active
- 2005-07-26 DE DE502005002139T patent/DE502005002139D1/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9311571U1 (en) * | 1993-08-03 | 1993-10-14 | H K O Isolier Und Textiltechni | Inflatable mat |
EP1314866A2 (en) * | 1997-02-06 | 2003-05-28 | Minnesota Mining And Manufacturing Company | Multilayer intumescent sheet |
DE20210543U1 (en) * | 2002-07-06 | 2003-01-30 | Naturemind Ag Fuer Nachwachsen | Biodegradable fibre mat, incorporates fully biodegradable bonding agent and maximum proportion of regenerable raw materials |
Also Published As
Publication number | Publication date |
---|---|
EP1640579B1 (en) | 2007-12-05 |
EP1640579A1 (en) | 2006-03-29 |
PL1640579T3 (en) | 2008-03-31 |
DE502005002139D1 (en) | 2008-01-17 |
ATE380289T1 (en) | 2007-12-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8139 | Disposal/non-payment of the annual fee |