EP1979588A1 - Abgasreinigungsvorrichtung sowie verfahren zur herstellung einer abgasreinigungsvorrichtung - Google Patents
Abgasreinigungsvorrichtung sowie verfahren zur herstellung einer abgasreinigungsvorrichtungInfo
- Publication number
- EP1979588A1 EP1979588A1 EP07702685A EP07702685A EP1979588A1 EP 1979588 A1 EP1979588 A1 EP 1979588A1 EP 07702685 A EP07702685 A EP 07702685A EP 07702685 A EP07702685 A EP 07702685A EP 1979588 A1 EP1979588 A1 EP 1979588A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- exhaust gas
- insert
- gas purification
- purification device
- adhesive
- 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- Withdrawn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
-
- 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
- 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
- F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
- F01N2450/28—Methods or apparatus for fitting, inserting or repairing different elements by using adhesive material, e.g. cement
Definitions
- the invention relates to an exhaust gas purification device with an outer housing, an insert disposed therein and an elastic compensation element surrounding the insert. Furthermore, the invention relates to a method for producing an exhaust gas purification device having an outer housing with an insert disposed therein and an elastic compensation element surrounding the insert.
- Emission control devices are in particular
- Catalysts, particle filters or combinations of both usually have a ceramic substrate insert which acts as a mechanical filter (particulate filter) or is coated with a catalytic exhaust gas purification material.
- the insert is wrapped with an elastic compensation element (commonly referred to as a bearing mat) and is held by radial clamping in the outer housing.
- the elastic compensation element exerts a holding force on the insert, which must be large enough to prevent an axial displacement of the insert relative to the outer housing during driving, which can occur, for example, by the gas pressure and by vibrations.
- a disadvantage of exhaust gas cleaning devices known from the prior art is that the necessary holding force exerted on the insert is only achieved when a bearing mat designed as a so-called swelling mat expands (or "blooms") in response to an elevated temperature be exposed once a temperature of about 300 ° C to 350 0 C.
- the emission control device is arranged in the underbody area, but at normal driving in city traffic initially only temperatures of about 200 ° C. It is therefore possible for the bearing mat to remain in its unexpanded state for a relatively long period of time, for example until the first regeneration of a Particulate filter, in which then for the first time the expansion temperature of the mat is achieved.
- the object of the invention is therefore to provide an exhaust gas purification device in which the inserter is held securely from the beginning (i.e., even before a high temperature has been reached in the exhaust system) and which is characterized by low design complexity and low production costs.
- an adhesive layer between the insert and the compensation element and / or between the compensation element and the outer housing is provided for this purpose in an exhaust gas purification device of the type mentioned at least before the first start. Adhesion between the insert and the compensation element (or between the compensation element and the outer housing) is achieved by the adhesive layer, and the insert is securely held in its installed position even before the expansion element is expanded. Even in the case of a non-swelling bearing mat, such an adhesive layer can be useful in that it contributes to increasing the holding force at higher temperatures at which the outer housing expands somewhat.
- the adhesive layer is formed so that its adhesive properties at higher temperatures, especially at temperatures up to 350 0 C, preserved.
- the bearing mat expands at a temperature of about 300 0 C to 350 ° C, whereupon the insert is held securely by the force exerted by the mat sufficient clamping force in the housing.
- the adhesive layer prevents a displacement of the insert relative to the outer housing.
- the adhesive layer may be formed so that it at higher temperatures melts or burns when it is no longer needed to hold the insert.
- the adhesive layer is formed from an adhesive which does not secrete any toxic substances when it evaporates or burns.
- the adhesive layer is formed by a double-sided adhesive tape, which is characterized by a particularly good
- the double-sided adhesive tape can consist exclusively of adhesive film, that is, entirely without a carrier layer, for example in the form of a film.
- the adhesive layer may also be formed by a liquid adhesive or by a spray adhesive. Again, make sure that the adhesive does not penetrate as possible in the compensation element.
- Another advantage is the use of an adhesive layer of a thermally activated adhesive. It makes it possible namely to produce the exhaust gas purification device in a so-called Stopfclar, wherein the adhesive layer applied to the insert, the elastic compensation element and / or the outer housing and the insert is stuffed with surrounding compensation element in the outer housing. Only after the stopper, the adhesive is activated, in particular only at the first start-up of the vehicle. In this case, however, the activation temperature of the adhesive should be well below the temperatures that are reached at the first start of the vehicle.
- the adhesive layer may be formed for example by a rubber-based adhesive or by an acrylate-based adhesive.
- an exhaust gas purifying apparatus comprising the steps of: providing the insert, the elastic compensating member, and the outer case and a metal sheet forming the outer case, respectively.
- an exhaust gas purification device is provided in which the insert is held securely in the outer housing at any time, that is from the time of manufacture.
- FIG. 1 shows a longitudinal section through an exhaust gas purification device according to a first embodiment of the invention
- Figure 2 is an enlarged detail view of Figure 1;
- FIG. 3 shows a detailed view similar to FIG. 2, but of an exhaust gas purification device according to a second embodiment of the invention.
- FIG. 4 is a schematic representation of the inventive method for producing an exhaust gas purification device.
- FIG. 1 shows an exhaust gas purification device 10 for the exhaust system of a motor vehicle.
- the exhaust gas purification device 10 is a particulate filter, an exhaust gas catalyst, or a combination of both.
- the core of the exhaust gas purification device 10 is an insert 12, here an elongated, cylindrical substrate, which consists for example of a ceramic substrate, a kind of wound corrugated cardboard or other catalytic carrier or filter material with or without coating.
- the insert 12 may have a circular cylindrical or a non-circular cross section. Only a simplified representation of a circular cylindrical cross-section is shown.
- the substrate is surrounded by a bearing mat, which is elastic
- Compensation element 14 between the insert 12 and an outer housing 16 acts.
- the outer housing 16 is made in particular of sheet metal and very thin-walled. Upstream and downstream are an inlet funnel 18 and a
- Outlet funnel 20 connected to the outer housing 16. Between the insert 12 and the compensation element 14 is a
- Adhesive layer 22 is provided (see also Figure 2). This can be formed for example by a double-sided adhesive tape, a liquid adhesive or a spray adhesive and prevents displacement of the insert 12 relative to the compensation element 14 (or to the outer housing 16).
- Figures 1 and 2 show the exhaust gas purification device 10 in the state before the first startup.
- driving exhaust gas flows through the inlet funnel 18 frontally in the insert 12 and leaves it with less pollutants provided on the opposite end face to leave the exhaust gas purification device 10 via the outlet funnel 20.
- the exhaust-gas purification device 10 reaches a temperature of more than 350 ° C. during operation of the vehicle, for example during regeneration of the particle filter, the adhesive layer 22 is thermally destroyed, for example by melting, evaporating or burning.
- the compensation element 14 is already expanded at this time, is still provided for a reliable mounting of the insert 12 in the outer housing 16.
- Figure 3 shows an exhaust gas purification device according to a second embodiment of the invention, which differs from that of Figures 1 and 2 only in that in addition between the compensation element 14 and the outer housing 16, a further adhesive layer 22 is provided. This prevents slippage of the compensating element relative to the outer housing 16. Of course, only between the compensating element 14 and the outer housing 16, an adhesive layer 22 may be provided.
- the insert 12 is provided on its outside with an adhesive layer 22 ( Figure 4a), before the compensation element 14 (the
- Outer housing 16 which consists of a metal sheet, for example by mandrel or
- any other known method for producing an exhaust gas purification device can be modified accordingly.
- the assembly of the insert and the compensation element in the outer housing can be done by so-called calibration, wherein a plurality of radially movable pressure jaws plastically deform a prefabricated tubular outer housing.
- a calibration by means of rollers or a so-called pressing is possible.
- the outer housing may consist of two or more shells, which are pushed together and then welded together, folded or soldered.
- a plug of the insert together with the compensation element in a prefabricated tubular outer housing is conceivable.
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)
- Filtering Materials (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006002688A DE102006002688A1 (de) | 2006-01-19 | 2006-01-19 | Abgasreinigungsvorrichtung sowie Verfahren zur Herstellung einer Abgasreinigungsvorrichtung |
PCT/EP2007/000200 WO2007082668A1 (de) | 2006-01-19 | 2007-01-11 | Abgasreinigungsvorrichtung sowie verfahren zur herstellung einer abgasreinigungsvorrichtung |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1979588A1 true EP1979588A1 (de) | 2008-10-15 |
Family
ID=38219640
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07702685A Withdrawn EP1979588A1 (de) | 2006-01-19 | 2007-01-11 | Abgasreinigungsvorrichtung sowie verfahren zur herstellung einer abgasreinigungsvorrichtung |
Country Status (5)
Country | Link |
---|---|
US (1) | US20100212275A1 (de) |
EP (1) | EP1979588A1 (de) |
CN (1) | CN101405490A (de) |
DE (1) | DE102006002688A1 (de) |
WO (1) | WO2007082668A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2944053B1 (fr) * | 2009-04-01 | 2011-04-22 | Faurecia Sys Echappement | Element de depollution de gaz d'echappement. |
US20130032274A1 (en) * | 2011-08-02 | 2013-02-07 | Ruth Latham | Method of wrapping a batt, blanket or mat in an exhaust gas aftertreatment or acoustic device |
JP2023506889A (ja) * | 2019-12-17 | 2023-02-20 | スリーエム イノベイティブ プロパティズ カンパニー | 断熱構造及びその作製方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2040854T3 (es) * | 1987-06-18 | 1993-11-01 | Fibre Techniques Limited | Metodo de proteger y aislar un bloque de convertidor catalitico. |
DE3927895C1 (de) * | 1989-08-24 | 1990-09-13 | Leistritz Ag, 8500 Nuernberg, De | |
US5413766A (en) * | 1991-10-04 | 1995-05-09 | Leistritz Ag & Co. Abgastechnik | Device for reducing exhaust gas contaminants, particularly for motor vehicles |
US20030129102A1 (en) * | 2002-01-08 | 2003-07-10 | Turek Alan Gerard | Exhaust emissions control devices comprising adhesive |
JP2005074243A (ja) * | 2003-08-29 | 2005-03-24 | Three M Innovative Properties Co | 汚染コントロール要素の保持材及び汚染コントロール装置 |
-
2006
- 2006-01-19 DE DE102006002688A patent/DE102006002688A1/de not_active Withdrawn
-
2007
- 2007-01-11 EP EP07702685A patent/EP1979588A1/de not_active Withdrawn
- 2007-01-11 CN CNA2007800095531A patent/CN101405490A/zh active Pending
- 2007-01-11 WO PCT/EP2007/000200 patent/WO2007082668A1/de active Application Filing
- 2007-01-11 US US12/161,049 patent/US20100212275A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO2007082668A1 * |
Also Published As
Publication number | Publication date |
---|---|
US20100212275A1 (en) | 2010-08-26 |
DE102006002688A1 (de) | 2007-07-26 |
WO2007082668A1 (de) | 2007-07-26 |
CN101405490A (zh) | 2009-04-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20080818 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE ES FR |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: KRONER, PETER Inventor name: SCHMIDT, STEFAN Inventor name: MERSCHKOETER, STEFAN |
|
DAX | Request for extension of the european patent (deleted) | ||
RBV | Designated contracting states (corrected) |
Designated state(s): DE ES FR |
|
17Q | First examination report despatched |
Effective date: 20100119 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20100601 |