EP0415101B1 - Système d'échappement, en particulier dispositif de purification de gaz d'échappement - Google Patents

Système d'échappement, en particulier dispositif de purification de gaz d'échappement Download PDF

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Publication number
EP0415101B1
EP0415101B1 EP90114642A EP90114642A EP0415101B1 EP 0415101 B1 EP0415101 B1 EP 0415101B1 EP 90114642 A EP90114642 A EP 90114642A EP 90114642 A EP90114642 A EP 90114642A EP 0415101 B1 EP0415101 B1 EP 0415101B1
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EP
European Patent Office
Prior art keywords
exhaust gas
shield
cleaning device
support element
mat
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
Application number
EP90114642A
Other languages
German (de)
English (en)
Other versions
EP0415101A1 (fr
Inventor
Walter Dr. Stoepler
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.)
Leistritz AG
Original Assignee
Leistritz AG
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Filing date
Publication date
Application filed by Leistritz AG filed Critical Leistritz AG
Publication of EP0415101A1 publication Critical patent/EP0415101A1/fr
Application granted granted Critical
Publication of EP0415101B1 publication Critical patent/EP0415101B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • F01N13/10—Other arrangements or adaptations of exhaust conduits of exhaust manifolds
    • F01N13/102—Other arrangements or adaptations of exhaust conduits of exhaust manifolds 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
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features
    • F01N13/009—Exhaust or silencing apparatus characterised by constructional features having two or more separate purifying devices arranged in series
    • F01N13/0097—Exhaust or silencing apparatus characterised by constructional features having two or more separate purifying devices arranged in series the purifying devices are arranged in a single 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
    • F01N13/14—Exhaust or silencing apparatus characterised by constructional features 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
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features
    • F01N13/14—Exhaust or silencing apparatus characterised by constructional features having thermal insulation
    • F01N13/141—Double-walled exhaust pipes or housings
    • 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
    • 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
    • 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
    • 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
    • F01N2470/00—Structure or shape of exhaust gas passages, pipes or tubes
    • F01N2470/10—Tubes having non-circular cross section

Definitions

  • the invention relates to an exhaust gas device with an at least partially double-shell metal housing, the gas-carrying metallic inner housing being supported by an elastic mineral fiber mat in the metallic outer housing, in particular exhaust gas cleaning device having an outer housing consisting of two half-shells, in which an elastic bearing mat, preferably a so-called. Swell mat, at least one honeycomb-structured support body and on the input and output side inner shielding funnels and, if appropriate, shielding rings are mounted between successive support bodies.
  • the invention is therefore based on the object of designing an exhaust gas device of the type mentioned in such a way that the problems with axial and radial expansion differences are solved with a simple structure, and moreover with a favorable transition to any ceramic parts, without the occurrence of stress peaks and the risk of wrinkles can be.
  • the inner housing is formed from a close-meshed and inherently sliding wire mesh mat and is fixed on both ends either on the outer housing or on a carrier body mounted therein.
  • such a wire mesh mat - mesh fabrics with a mesh width of ⁇ 0.5 mm are particularly suitable - can be processed very easily in press or deep-drawing molds, so that even very complicated shell structures can be produced.
  • such shielding parts made of a wire mesh mat are provided with a very high degree of elasticity, both in the longitudinal direction and radially and in the transverse direction, so that the expansion differences mentioned at the beginning can be easily absorbed in the wire mesh in both the axial direction and the radial direction.
  • an exhaust gas cleaning device designed according to the invention with an outer housing consisting of two half-shells, in which at least one honeycomb-shaped support body and input and output-side inner shielding funnels and optionally shielding rings between successive support bodies are mounted via an elastic bearing mat, such that the one in the connecting piece jammed or welded shielding funnels clampingly encompasses the front end of the carrier body, any shielding rings should clamp around the neighboring carrier body ends in a corresponding manner, with the compensation of the expansion tolerance there is also an absolute certainty that due to any different expansions excessive stress peaks occur that lead to could destroy the thin-walled ceramic.
  • the special properties of a wire mesh mat also clearly prevent any risk of creasing at different expansions, for example of the shielding funnel produced from such a wire mesh mat and of the ceramic support body which is subsequently clamped around.
  • the porosity of a shielding funnel made of a wire mesh mat does not interfere with the dense design of a shielding funnel that is deep-drawn from sheet metal, since with a sufficiently small mesh size, sufficient elasticity of the inner shielding component produced therefrom is still guaranteed on the one hand, and on the other hand due to the occurring mesh opening neither damage to the mineral fiber mat can take place, which in practice is more heat-resistant anyway is as metal, but on the other hand also blowing out or falling out parts from the mineral fiber mat can be reliably prevented.
  • the shielding funnel 7 which consists of a wire mesh mat, is resiliently stretched onto the end of the carrier body 4, an additional holding effect also being provided by the pressure of the surrounding mineral fiber mat 5.
  • the inner shielding cylinder can not only be placed very easily around complicated inner structures, as must be the case with the complex-shaped carrier body 4 (FIG. 2), but there can be neither thermally induced stress peaks nor warping or wrinkling Shielding funnels or shielding rings, neither in the radial nor in the axial direction.
  • the invention is not restricted to the exemplary embodiments shown.
  • This design can namely be provided in the area of the shielding funnels or rings that the elastic bearing mat is completely eliminated over large sections, which in turn has the advantage that no high compressive forces of this elastic fiber mat have to be absorbed by the wire mesh shielding funnels and shielding rings .
  • the production from the wire mesh mat instead of the usual metal sheets has the advantage that, for example, damage to the monolith is eliminated by the encompassing edge of the shielding funnel or shielding ring. Due to the thermally insulating intermediate layer, excessive thermal heating of the outer shell is avoided even without pulling the bearing mat over the area of the rings and shielding funnels, and on the other hand - in particular if the thermally insulating intermediate layer is used as paper, film or the like. is made of thermally resistant material - prevents hot exhaust gases from getting into the space between the inner shell and the outer shell, so that they are neither there heating or blowing out the elastic mineral fiber mat present in the area of the monolith at the latest.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Claims (5)

  1. Système d'échappement, avec un carter métallique (1, 7, 10; 1', 9), réalisé en deux coquilles, au moins par tronçons, le carter intérieur métallique (7, 10; 9) guidant les gaz étant monté dans le carter extérieur métallique (1, 1'), par l'intermédiaire d'un matelas de fibres minérales élastique , caractérisé en ce que le carter intérieur (7, 10; 9) est formé d'un matelas tissé en fils métalliques, à mailles étroites et permettant un coulissement élastique, et fixé au deux extrémités, soit sur le carter extérieur (1, 1'), soit sur un corps support (4, 4') monté à l'intérieur de celui-ci.
  2. Dispositif d'épuration de gaz d'échappement selon la revendication 1, avec un carter extérieur composé de deux demi-coquilles, dans lequel, par l'intermédiaire d'un matelas support élastique, au moins un corps support à structure en nid d'abeilles, ainsi que des entonnoirs d'isolation intérieur,situés côté entrée et côté sortie, ainsi que, le cas échéant, des bagues d'isolation, sont montés entres des corps support successifs, caractérisé en ce que l'entonnoir d'isolation (7), fixé par serrage ou soudage dans la tubulure de raccordement, entoure avec serrage l'extrémité frontale du corps de support (4, 4').
  3. Dispositif d'épuration de gaz d'échappement selon la revendication 2, caractérisé en ce que les bagues d'isolation (10) entourent avec serrage les extrémités voisines des corps supports.
  4. Dispositif d'épuration de gaz d'échappement selon la revendication 2 ou 3, caractérisé en ce que les entonnoirs d'isolation (7) et les bagues d'isolation (10) sont formés de couches, séparées au moyen d'une couche intermédiaire isolant de la chaleur, de matelas tissés en fils métalliques.
  5. Dispositif d'épuration de gaz d'échappement selon la revendication 4, caractérisé en ce que la couche intermédiaire est en matériau à base de fibres céramiques, se présentant sous la forme d'un tissu, d'un papier, d'une couche de couverture ou d'un matelas de fibres.
EP90114642A 1989-09-02 1990-07-31 Système d'échappement, en particulier dispositif de purification de gaz d'échappement Expired - Lifetime EP0415101B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3929205 1989-09-02
DE3929205A DE3929205A1 (de) 1989-09-02 1989-09-02 Abgasvorrichtung, insbes. abgasreinigungsvorrichtung

Publications (2)

Publication Number Publication Date
EP0415101A1 EP0415101A1 (fr) 1991-03-06
EP0415101B1 true EP0415101B1 (fr) 1993-09-22

Family

ID=6388521

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90114642A Expired - Lifetime EP0415101B1 (fr) 1989-09-02 1990-07-31 Système d'échappement, en particulier dispositif de purification de gaz d'échappement

Country Status (3)

Country Link
EP (1) EP0415101B1 (fr)
DE (2) DE3929205A1 (fr)
ES (1) ES2044341T3 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4026566C2 (de) * 1990-08-22 1993-10-28 Eberspaecher J Abgasreinigungsvorrichtung mit zwei Abgasbehandlungskörpern hintereinander
DE4201426C2 (de) * 1992-01-21 1994-03-31 Leistritz Abgastech Abgasreinigungsvorrichtung
EP0603754B1 (fr) * 1992-12-22 1996-09-18 LEISTRITZ AG & CO. Abgastechnik Dispositif pour réduire les émissions d'échappement, en particulier pour véhicules à moteur
DE4323791C2 (de) * 1993-07-15 1997-03-20 Daimler Benz Ag Abgasnachbehandlungseinrichtung zum katalytischen Reinigen der Abgase von Brennkraftmaschinen
EP0719912B1 (fr) * 1994-12-30 2000-02-02 J. Eberspächer GmbH & Co. Dispositif de traitement de gaz d'échappement d'un moteur à combustion interne
DE19628798B4 (de) * 1996-07-17 2008-04-17 Daimler Ag Abgaskrümmer zur Abgasführung aus einer Brennkraftmaschine
DE10018805A1 (de) 2000-04-15 2001-11-29 Volkswagen Ag Verfahren und Vorrichtung zur Herstellung eines Katalysators mit einem einen polygonen Querschnitt aufweisenden Monolithen
US20030086832A1 (en) * 2001-11-02 2003-05-08 Turek Alan G. End cones for exhaust emission control devices and methods of making
DE102009016266B4 (de) 2009-04-03 2014-08-21 Audi Ag Abgaskrümmer
DE102009037520A1 (de) * 2009-08-17 2011-04-21 Poroson Gmbh Abgaskrümmer
US9790836B2 (en) 2012-11-20 2017-10-17 Tenneco Automotive Operating Company, Inc. Loose-fill insulation exhaust gas treatment device and methods of manufacturing
FR3084109B1 (fr) * 2018-07-23 2022-08-19 Renault Sas Dispositif d’isolation thermique a l’echappement de moteur thermique
DE102019104940A1 (de) * 2019-02-27 2020-08-27 Eberspächer Exhaust Technology GmbH & Co. KG Abgaskonverter-Gehäusestruktur
CN115585037B (zh) * 2022-09-27 2023-05-05 九江学院 一种尾气捕集结构

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0285027A2 (fr) * 1987-03-28 1988-10-05 Firma J. Eberspächer Agencement pour le montage d'un catalyseur dans son boîtier dans l'échappement d'un moteur à combustible liquide

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2222663C3 (de) * 1972-05-09 1975-03-06 Zeuna-Staerker Kg, 8900 Augsburg Verfahren zur Herstellung einer Vorrichtung zur Reinigung der Abgase von Brennkraftmaschinen
JPS54160558A (en) * 1978-05-19 1979-12-19 Chuo Hatsujo Kk Forming metal wire cushion body and product thereof
EP0193072B1 (fr) * 1985-02-22 1989-04-12 Leistritz Aktiengesellschaft Dispositif d'épuration catalytique des gaz d'échappement
DE3509790A1 (de) * 1985-03-19 1986-10-09 LEISTRITZ Maschinenfabrik GmbH, 8500 Nürnberg Abgasreinigungsvorrichtung fuer kraftfahrzeuge
DE3700070A1 (de) * 1987-01-02 1988-07-14 Eberspaecher J Vorrichtung fuer die katalytische reinigung von fahrzeugmotor-abgasen
DE3729994A1 (de) * 1987-09-08 1989-03-16 Bischoff Erhardt Gmbh Co Kg Vorrichtung zum katalytischen reinigen von abgasen
DE3821397C2 (de) * 1988-06-24 1993-10-14 Eberspaecher J Vorrichtung zur katalytischen Reinigung von Verbrennungsmotor-Abgasen

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0285027A2 (fr) * 1987-03-28 1988-10-05 Firma J. Eberspächer Agencement pour le montage d'un catalyseur dans son boîtier dans l'échappement d'un moteur à combustible liquide

Also Published As

Publication number Publication date
DE3929205C2 (fr) 1992-01-23
EP0415101A1 (fr) 1991-03-06
ES2044341T3 (es) 1994-01-01
DE59002823D1 (de) 1993-10-28
DE3929205A1 (de) 1991-03-21

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