EP0415101A1 - 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
EP0415101A1
EP0415101A1 EP90114642A EP90114642A EP0415101A1 EP 0415101 A1 EP0415101 A1 EP 0415101A1 EP 90114642 A EP90114642 A EP 90114642A EP 90114642 A EP90114642 A EP 90114642A EP 0415101 A1 EP0415101 A1 EP 0415101A1
Authority
EP
European Patent Office
Prior art keywords
mat
shielding
exhaust gas
rings
shell
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.)
Granted
Application number
EP90114642A
Other languages
German (de)
English (en)
Other versions
EP0415101B1 (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 device with a double-shell housing, the inner shell being mounted at least in sections via an elastic bearing mat, in particular mineral fiber mat in the outer shell, in particular an exhaust gas cleaning device with an outer housing consisting of two half-shells, in which via an elastic bearing mat, in particular a so-called swelling mat, at least one honeycomb-structured carrier body and inner and outer shielding funnels and, if necessary, shielding rings are mounted between successive carrier 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 shielding funnels and rings are formed from a close-meshed, sliding elastic wire mesh mat and are held fixed on both ends.
  • the configuration according to the invention can solve a number of special problems in one.
  • 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.
  • shielding parts made of a wire mesh mat, both in the longitudinal direction and radially and in the transverse direction are very large Provide elasticity so that the expansion differences mentioned at the beginning can be easily absorbed in the wire mesh in both the axial direction and in the radial direction.
  • the special properties of a wire mesh mat also evidently 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 in any way with the dense design of a shielding funnel 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 anyway more heat-resistant than metal, but on the other hand also blowing out or otherwise falling out of 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.
  • 3 and 4 is shown using an insulated double shell manifold with a metallic outer housing 1 'and an inner housing 9, as the inventive design of the inner housing from a wire mesh mat in a very simple and effective form can also be used in other types of exhaust devices, to avoid the otherwise usual complicated sliding seats in the area of the inner housing and / or outer housing.
  • a mineral fiber mat 5 'between the outer housing 1' and the wire mesh mat-shaped inner housing 9 provided, because of the complicated structure, the mineral fiber mat 5 'is preferably composed of divided blanks, which preferably abut against one another with their abutting edges.
  • 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 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.

Landscapes

  • 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)
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 true EP0415101A1 (fr) 1991-03-06
EP0415101B1 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)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0472009A1 (fr) * 1990-08-22 1992-02-26 Firma J. Eberspächer Dispositif de purification de gaz d'échappement avec deux corps de traitement de gaz l'un après l'autre
EP0603754A1 (fr) * 1992-12-22 1994-06-29 LEISTRITZ AG & CO. Abgastechnik Dispositif pour réduire les émissions d'échappement, en particulier pour véhicules à moteur
EP0719912A1 (fr) * 1994-12-30 1996-07-03 Firma J. Eberspächer Dispositif de traitement de gaz d'échappement d'un moteur à combustion interne
FR2751376A1 (fr) * 1996-07-17 1998-01-23 Daimler Benz Ag Tubulure coudee de gaz d'echappement pour le guidage des gaz d'echappement d'un moteur a combustion interne
EP1308607A3 (fr) * 2001-11-02 2004-06-09 Delphi Technologies, Inc. Extrémités coniques pour dispositifs d'émission de gaz d'échappement et procédé de fabrication
FR3084109A1 (fr) * 2018-07-23 2020-01-24 Renault S.A.S. 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
CN115585037A (zh) * 2022-09-27 2023-01-10 九江学院 一种尾气捕集结构

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4201426C2 (de) * 1992-01-21 1994-03-31 Leistritz Abgastech Abgasreinigungsvorrichtung
DE4323791C2 (de) * 1993-07-15 1997-03-20 Daimler Benz Ag Abgasnachbehandlungseinrichtung zum katalytischen Reinigen der Abgase von Brennkraftmaschinen
DE10018805A1 (de) 2000-04-15 2001-11-29 Volkswagen Ag Verfahren und Vorrichtung zur Herstellung eines Katalysators mit einem einen polygonen Querschnitt aufweisenden Monolithen
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

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0193072A1 (fr) * 1985-02-22 1986-09-03 Leistritz Aktiengesellschaft Dispositif d'épuration catalytique des gaz d'échappement
EP0275565A1 (fr) * 1987-01-02 1988-07-27 Firma J. Eberspächer Dispositif pour l'épuration catalytique des gaz d'échappement d'automobiles
DE3821397A1 (de) * 1988-06-24 1989-12-28 Eberspaecher J Vorrichtung zur katalytischen reinigung von verbrennungsmotor-abgasen

Family Cites Families (5)

* 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
DE3509790A1 (de) * 1985-03-19 1986-10-09 LEISTRITZ Maschinenfabrik GmbH, 8500 Nürnberg Abgasreinigungsvorrichtung fuer kraftfahrzeuge
DE3710299A1 (de) * 1987-03-28 1988-10-13 Eberspaecher J Anordnung zur halterung eines katalysators in einem gehaeuse im abgassystem eines mit fluessigem brennstoff betriebenen motors
DE3729994A1 (de) * 1987-09-08 1989-03-16 Bischoff Erhardt Gmbh Co Kg Vorrichtung zum katalytischen reinigen von abgasen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0193072A1 (fr) * 1985-02-22 1986-09-03 Leistritz Aktiengesellschaft Dispositif d'épuration catalytique des gaz d'échappement
EP0275565A1 (fr) * 1987-01-02 1988-07-27 Firma J. Eberspächer Dispositif pour l'épuration catalytique des gaz d'échappement d'automobiles
DE3821397A1 (de) * 1988-06-24 1989-12-28 Eberspaecher J Vorrichtung zur katalytischen reinigung von verbrennungsmotor-abgasen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 12, no. 195 (M-705)(3042) 07 Juni 1988, & JP-A-63 001708 (YUTAKA) 06 Januar 1988, *

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0472009A1 (fr) * 1990-08-22 1992-02-26 Firma J. Eberspächer Dispositif de purification de gaz d'échappement avec deux corps de traitement de gaz l'un après l'autre
EP0603754A1 (fr) * 1992-12-22 1994-06-29 LEISTRITZ AG & CO. Abgastechnik Dispositif pour réduire les émissions d'échappement, en particulier pour véhicules à moteur
EP0719912A1 (fr) * 1994-12-30 1996-07-03 Firma J. Eberspächer Dispositif de traitement de gaz d'échappement d'un moteur à combustion interne
FR2751376A1 (fr) * 1996-07-17 1998-01-23 Daimler Benz Ag Tubulure coudee de gaz d'echappement pour le guidage des gaz d'echappement d'un moteur a combustion interne
EP1308607A3 (fr) * 2001-11-02 2004-06-09 Delphi Technologies, Inc. Extrémités coniques pour dispositifs d'émission de gaz d'échappement et procédé de fabrication
FR3084109A1 (fr) * 2018-07-23 2020-01-24 Renault S.A.S. Dispositif d’isolation thermique a l’echappement de moteur thermique
WO2020020828A1 (fr) * 2018-07-23 2020-01-30 Renault S.A.S Dispositif d'isolation thermique a l'echappement de moteur thermique
CN112469892A (zh) * 2018-07-23 2021-03-09 雷诺股份公司 用于热力发动机的排气的热绝缘装置
DE102019104940A1 (de) * 2019-02-27 2020-08-27 Eberspächer Exhaust Technology GmbH & Co. KG Abgaskonverter-Gehäusestruktur
CN115585037A (zh) * 2022-09-27 2023-01-10 九江学院 一种尾气捕集结构

Also Published As

Publication number Publication date
DE3929205C2 (fr) 1992-01-23
ES2044341T3 (es) 1994-01-01
DE59002823D1 (de) 1993-10-28
DE3929205A1 (de) 1991-03-21
EP0415101B1 (fr) 1993-09-22

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