EP0278455A2 - Carter pour l'incorporation d'un corps céramique monolithique - Google Patents

Carter pour l'incorporation d'un corps céramique monolithique Download PDF

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Publication number
EP0278455A2
EP0278455A2 EP88101801A EP88101801A EP0278455A2 EP 0278455 A2 EP0278455 A2 EP 0278455A2 EP 88101801 A EP88101801 A EP 88101801A EP 88101801 A EP88101801 A EP 88101801A EP 0278455 A2 EP0278455 A2 EP 0278455A2
Authority
EP
European Patent Office
Prior art keywords
edge
shell
shells
ceramic body
housing
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Withdrawn
Application number
EP88101801A
Other languages
German (de)
English (en)
Other versions
EP0278455A3 (fr
Inventor
Herman Dr.-Ing. Weltens
Harald Dipl.-Ing. Bressler
Manfred Doll
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.)
PAUL GILLET GmbH
Gillet Paul GmbH
Original Assignee
PAUL GILLET GmbH
Gillet Paul GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by PAUL GILLET GmbH, Gillet Paul GmbH filed Critical PAUL GILLET GmbH
Publication of EP0278455A2 publication Critical patent/EP0278455A2/fr
Publication of EP0278455A3 publication Critical patent/EP0278455A3/fr
Withdrawn legal-status Critical Current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
    • 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
    • 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
    • F01N2450/22—Methods or apparatus for fitting, inserting or repairing different elements by welding or brazing

Definitions

  • the invention relates to a housing for receiving a monolithic ceramic body for cleaning exhaust gases, in particular internal combustion engines, which is welded together in a gas-tight manner from two half-shells consisting of deep-drawn sheet metal and in which the ceramic body is kept gas-tight with the interposition of a sheathing consisting of a wire mesh, an expansion mat or the like is.
  • Such a housing of an exhaust gas catalytic converter is known, for example, from DE-GM 80 19 814.
  • the half-shells consisting of deep-drawn sheet metal have one or two formations into which one or two ceramic bodies which carry the catalytic coating are inserted.
  • each ceramic body is provided with a sheathing made from a wire mesh, an expansion mat or the like . After inserting the coated ceramic body into its shape in one half-shell, the other half-shell is placed on; Both half-shells are pressed together with hydraulic presses and welded gas-tight on their contact surfaces.
  • the sheet metal parts of the housing can be manufactured with high precision, this does not apply to the ceramic body. These are delivered with tolerances in the order of up to millimeters.
  • the housing can now be dimensioned such that an adequate seal and holder between the ceramic and the housing is achieved even with the smallest possible ceramic body. Ceramic body with Excess, however, are then pressed too much and can break.
  • the dimensioning of the housing is based on the ceramic body with oversize, then insufficient pressing pressure for secure mounting and sealing is not achieved with ceramic bodies with undersize.
  • the sheathing is not compressed sufficiently tightly, so that too much exhaust gas flows past in the gap between the ceramic body and the housing, in particular when the half-shells expand due to the heating to the working temperature and the ceramic body is held even worse.
  • the present invention has for its object to develop the housing of the type mentioned in such a way that ceramic bodies with oversize or undersize are always optimally sealed and held in housings with any oversize or undersize.
  • edges of the half-shells are designed so that the half-shells can be inserted more or less deeply into one another.
  • the edges in the plug-in area are not profiled, ie essentially flat.
  • This simple form has the advantage that the two half-shells can be made symmetrical.
  • one edge of the one half-shell is not profiled and flat, while the corresponding edge of the other half-shell is bulged, with this edge preferably also having an approximately outward-facing flange.
  • This variant has the advantage that the bulged edge can overlap the straight edge and thus support symmetrically from the outside, with the same pressure conditions in the casing all around, that the flange acts as a joining aid when the shell parts are plugged together and that at the angle between the externally directed flange and the straight edge a tight weld can be attached particularly easily.
  • the edges of both half shells are bulged, the edge of one half shell overlapping the edge of the other half shell.
  • This variant has the advantage that excess parts of the casing can escape into this bulge when the two half-shells are pressed together.
  • Fig. 1 shows a cross section through an exhaust gas catalytic converter.
  • a housing 11 plugged together from two half-shells 11.1, 11.2 and tightly welded by means of a weld seam 4, in the interior of which a honeycomb-shaped ceramic body 3 is supported by means of a sheathing 2, for example made of a wire mesh, an expansion mat or the like.
  • the upper half-shell 11.2 of the housing 11 is equipped with a straight, flat edge 11.4, which is inserted into the bulged edge 11.3 of the lower half-shell 11.1.
  • the lower half-shell 11.1 or its edge 11.3 additionally has a flange 11.5 projecting approximately at right angles to the outside, as is customary in the case of the prior art. This flange 11.5 acts as a joining aid for the straight edge 11.4 of the upper half-shell 11.2.
  • the weld 4 can be carried out here particularly advantageously as a fillet weld.
  • Fig. 2 shows a further embodiment.
  • the edges 1.2, 1.4 of the two half-shells 1.1, 1.2 are bulged outwards, whereby the edge 1.3 of the upper half-shell 1.1, the edge 1.4 of the lower half-shell 1.2 overlaps symmetrically. In the overlap area, the edges 1.3, 1.4 are not profiled, but essentially flat.
  • the two half-shells 1.1, 1.2 can be inserted more or less deeply into one another by being pressed together with the optimum pressing pressure matched to the casing 2. Any excess parts of the casing 2 can escape into the bulge 5.
  • Fig. 3 shows an embodiment in which the edge 21.3 of lower half shell 21.1 of the housing 21 is bent back outwards.
  • the bulged edge 21.4 of the upper half-shell 21.2 extends over this edge 21.3. This creates a bulge 25.
  • the bent back edge 21.3 gives this embodiment a high degree of rigidity in the area of the weld seam 4.
  • a fillet weld can also be welded here.
  • FIG. 4 An embodiment formed from two identical half shells is shown in FIG. 4.
  • the edges 31.3, 31.4 of the upper and lower half shells 31.1, 31.2 are straight on one side and bulged on the other side. Due to the asymmetrical construction of the half-shells 31.1, 31.2 in the area of the weld 4, this embodiment cannot be used in all cases; However, the advantage of the present invention of always keeping the ceramic body 3 with the optimum pressing pressure in the housing 31, regardless of dimensional tolerances, is also achieved with this simple embodiment.

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)
  • Filtering Of Dispersed Particles In Gases (AREA)
EP88101801A 1987-02-10 1988-02-08 Carter pour l'incorporation d'un corps céramique monolithique Withdrawn EP0278455A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8701980U DE8701980U1 (de) 1987-02-10 1987-02-10 Gehäuse zur Aufnahme eines monolithischen Keramikkörpers
DE8701980U 1987-02-10

Publications (2)

Publication Number Publication Date
EP0278455A2 true EP0278455A2 (fr) 1988-08-17
EP0278455A3 EP0278455A3 (fr) 1990-01-31

Family

ID=6804536

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88101801A Withdrawn EP0278455A3 (fr) 1987-02-10 1988-02-08 Carter pour l'incorporation d'un corps céramique monolithique

Country Status (2)

Country Link
EP (1) EP0278455A3 (fr)
DE (1) DE8701980U1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0561019A1 (fr) * 1992-03-18 1993-09-22 Firma J. Eberspächer Dispositif pour le positionnement d'un boîtier intérieur dans le boîtier d'une installation d'échappement pour véhicules
EP1074703A1 (fr) * 1999-08-04 2001-02-07 J. Eberspächer GmbH & Co. Procédé de préparation d'un catalyseur, notamment préfabrication d'une enveloppe ou d'un tube d'un catalyseur à construction modulaire et un tube préfabriqué ainsi préparé
EP1110659A2 (fr) * 1999-12-22 2001-06-27 J. Eberspächer GmbH & Co. Méthode et dispositif pour fabriquer un boitier en demi-coquilles pour un atténuateur sonore de véhicule
DE102009005943A1 (de) 2009-01-16 2010-07-22 Dr.Ing.H.C.F.Porsche Aktiengesellschaft Abgasanlage
CN105545427A (zh) * 2014-10-27 2016-05-04 埃贝斯佩歇排气技术有限责任两合公司 排气处理装置和用于制造排气处理装置的方法

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8709184U1 (de) * 1987-05-27 1987-09-17 Witzenmann GmbH, Metallschlauch-Fabrik Pforzheim, 7530 Pforzheim Vorrichtung zur katalytischen Reinigung von Abgasen
DE8715289U1 (de) * 1987-11-18 1988-01-14 Emitec Gesellschaft für Emissionstechnologie mbH, 53797 Lohmar Trägerkörper für einen katalytischen Reaktor zur Abgasreinigung
DE4041856A1 (de) * 1990-12-24 1992-06-25 Behr Gmbh & Co Vorrichtung zur katalytischen entgiftung von abgasen, vorzugsweise von verbrennungskraftmaschinen
US5960529A (en) * 1994-11-07 1999-10-05 Emitec Gessellschaft Fuer Emissionstechnologie Mbh Apparatus and method for deforming a jacket tube of a honeycomb body
DE102007042812B4 (de) * 2006-11-10 2015-03-26 Tenneco Gmbh Schalengehäuse
DE102011001723B4 (de) 2011-04-01 2016-06-09 Konecranes Global Corporation Druckfestes Gehäuse, Verfahren zur Herstellung desselben sowie Anordnung desselben mit einem weiteren Gehäuse
DE102015105749A1 (de) 2015-04-15 2016-10-20 Tenneco Gmbh Abgasrohrbogen

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2047557A (en) * 1979-03-29 1980-12-03 Ti Cheswick Silencers Ltd Catalyst assembly for exhaust systems
US4322388A (en) * 1979-11-26 1982-03-30 Arvin Industries, Inc. Catalytic converter assembly
GB2120318A (en) * 1982-05-13 1983-11-30 Ti Cheswick Silencers Limited Exhaust gas discharge system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2047557A (en) * 1979-03-29 1980-12-03 Ti Cheswick Silencers Ltd Catalyst assembly for exhaust systems
US4322388A (en) * 1979-11-26 1982-03-30 Arvin Industries, Inc. Catalytic converter assembly
GB2120318A (en) * 1982-05-13 1983-11-30 Ti Cheswick Silencers Limited Exhaust gas discharge system

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0561019A1 (fr) * 1992-03-18 1993-09-22 Firma J. Eberspächer Dispositif pour le positionnement d'un boîtier intérieur dans le boîtier d'une installation d'échappement pour véhicules
EP1074703A1 (fr) * 1999-08-04 2001-02-07 J. Eberspächer GmbH & Co. Procédé de préparation d'un catalyseur, notamment préfabrication d'une enveloppe ou d'un tube d'un catalyseur à construction modulaire et un tube préfabriqué ainsi préparé
EP1110659A2 (fr) * 1999-12-22 2001-06-27 J. Eberspächer GmbH & Co. Méthode et dispositif pour fabriquer un boitier en demi-coquilles pour un atténuateur sonore de véhicule
EP1110659A3 (fr) * 1999-12-22 2002-04-10 J. Eberspächer GmbH & Co. Méthode et dispositif pour fabriquer un boitier en demi-coquilles pour un atténuateur sonore de véhicule
DE102009005943A1 (de) 2009-01-16 2010-07-22 Dr.Ing.H.C.F.Porsche Aktiengesellschaft Abgasanlage
CN105545427A (zh) * 2014-10-27 2016-05-04 埃贝斯佩歇排气技术有限责任两合公司 排气处理装置和用于制造排气处理装置的方法
CN105545427B (zh) * 2014-10-27 2018-11-13 埃贝斯佩歇排气技术有限责任两合公司 排气处理装置和用于制造排气处理装置的方法

Also Published As

Publication number Publication date
EP0278455A3 (fr) 1990-01-31
DE8701980U1 (de) 1987-05-14

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