EP2246536A1 - Boîtier pour un dispositif pour la purification de gaz d'échappement et méthode de fabrication - Google Patents

Boîtier pour un dispositif pour la purification de gaz d'échappement et méthode de fabrication Download PDF

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Publication number
EP2246536A1
EP2246536A1 EP10159599A EP10159599A EP2246536A1 EP 2246536 A1 EP2246536 A1 EP 2246536A1 EP 10159599 A EP10159599 A EP 10159599A EP 10159599 A EP10159599 A EP 10159599A EP 2246536 A1 EP2246536 A1 EP 2246536A1
Authority
EP
European Patent Office
Prior art keywords
housing
jacket
sheet metal
metal blank
annular body
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.)
Ceased
Application number
EP10159599A
Other languages
German (de)
English (en)
Inventor
Bernd Müller
Oliver Poth
Achim Blum
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.)
Eberspaecher Climate Control Systems GmbH and Co KG
Original Assignee
J Eberspaecher GmbH and Co KG
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 J Eberspaecher GmbH and Co KG filed Critical J Eberspaecher GmbH and Co KG
Publication of EP2246536A1 publication Critical patent/EP2246536A1/fr
Ceased 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
    • 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 ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • 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
    • F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
    • 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
    • F01N2450/20—Methods or apparatus for fitting, inserting or repairing different elements by mechanical joints, e.g. by deforming housing, tube, baffle plate or parts thereof
    • 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
    • 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 gas passages, pipes or tubes
    • F01N2470/26—Tubes being formed by extrusion, drawing or rolling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49345—Catalytic device making
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49398—Muffler, manifold or exhaust pipe making

Definitions

  • the present invention relates to a housing for an exhaust gas treatment device of an exhaust system of an internal combustion engine.
  • the invention also relates to a method for producing such a housing.
  • Housing of exhaust treatment facilities such.
  • catalysts and particulate filters have a jacket closed in the circumferential direction for receiving at least one exhaust gas treatment element.
  • This jacket can transition at least one axial end into a circumferentially closed, for example, funnel-shaped annular body, with which the housing can be connected to another component of the exhaust system.
  • it is customary to produce the jacket by rolling from a sheet metal blank, while the respective annular body is preferably produced by deep drawing. The rolled and welded at its abutting edges jacket is then axially connected to the ring body, preferably by means of a weld. This conventional procedure for producing such a housing is associated with a relatively large amount of effort.
  • the present invention is concerned with the problem of providing an improved embodiment for a housing of the aforementioned type or for an associated manufacturing method, which is characterized in particular by the fact that the housing can be produced comparatively inexpensively.
  • This problem is solved according to the invention by the subject matters of the independent claims.
  • Advantageous embodiments are the subject of the dependent claims.
  • the invention is based on the general idea to produce the shell and at least one annular body by using a so-called tailored blanks by rolling.
  • a tailored blank is a sheet metal blank, which is characterized in that it has at least two regions of different materials and / or different wall thicknesses.
  • the tailored blanks can thus shell and ring body of the housing can be formed simultaneously, with sheath and ring body of different materials and / or can be realized with different wall thicknesses.
  • This approach uses the knowledge that, for example, the jacket is only exposed to comparatively low loads, while the at least one annular body is exposed to much higher mechanical loads.
  • the sheath may be made from an austenitic portion of the sheet metal blank while the ring body is made from a ferritic portion of the blank sheet, or vice versa.
  • the use of a Rolliervons for producing the housing allows a particularly simple adaptation to different rolling parameters on the one hand for rolling the shell and on the other hand for rolling the respective ring body.
  • the respective housing can be realized particularly inexpensive.
  • the respective annular body can be configured as a funnel.
  • an inlet funnel and / or a discharge funnel of the housing can be integrally formed on the casing and yet have different material properties or strength values.
  • an adaptation to the different functions of jacket and ring body or funnel can be optimized.
  • a comparatively inexpensive manufacturability is achieved by the procedure according to the invention.
  • an exhaust treatment device 1 includes a housing 2 that is closed in the circumferential direction.
  • This circumferential direction refers to a longitudinal or axial direction 3, which extends parallel to a longitudinal central axis 4 of the housing 2.
  • the exhaust gas treatment device 1 may, for example, be a catalytic converter or a particle filter.
  • at least one exhaust gas treatment element 5 is arranged in the housing 2, which may, for example, be a catalyst element or a particle filter element.
  • the exhaust gas treatment device 1 is provided for use in an exhaust system of an internal combustion engine, wherein the internal combustion engine may preferably be located in a motor vehicle.
  • the housing 2 comprises a jacket 6, which is closed in the circumferential direction and which is designed to receive the at least one exhaust gas treatment element 5.
  • the jacket 6 encloses the respective exhaust gas treatment element 5 coaxially.
  • the respective exhaust gas treatment element 5 can be positioned in the jacket 6 by means of at least one bearing mat 7.
  • the housing 2 further comprises at least one ring body 8, 9. In the examples shown, two such ring body 8, 9 are provided in each case.
  • the respective ring body 8, 9 is closed in the circumferential direction and serves to connect the housing 2 to another component of the exhaust system can.
  • the jacket 6 passes at its axial ends in each case in one of these ring body 8, 9 via.
  • the jacket 6 and the ring body 8, 9 are made by rolling from a single, in Fig. 4 produced sheet metal blank 10, wherein abutting edges 11 of the sheet metal blank 10 in the finished housing 2 are interconnected.
  • the jacket 6 and at least one of the annular body 8, 9 differ from each other by different materials or by different wall thicknesses or by different materials and different wall thicknesses.
  • a wall thickness 12 of the shell 6 significantly smaller than a wall thickness 13 of the ring body 8 shown on the left and smaller than a wall thickness 14 of the ring body 9 shown on the right.
  • the wall thicknesses 13, 14 of the two ring body 8, 9 the same size.
  • the wall thickness 13 of the ring body 8 shown on the left smaller than the wall thickness 14 of the ring body 9 shown on the right.
  • the jacket 6 and the respective ring body 8, 9 may be made of different materials.
  • the jacket 6 may be made of an austenitic steel sheet, while the ring members 8, 9 are made of a ferritic steel sheet.
  • both ring body 8, 9 are each configured as a funnel.
  • the one annular body 8 or 9 then forms an inlet funnel, while the other funnel 9, 8 then forms a discharge funnel.
  • Fig. 2 shows an embodiment in which the one annular body 8 is designed as a cylindrical sleeve, while the other annular body 9 is designed as a funnel.
  • Fig. 3 shows an embodiment in which both annular bodies 8, 9 are each designed as cylindrical sleeves.
  • Fig. 4 shows a plan view of a sheet metal blank 10, with the help of the housing 2 is to be produced.
  • the metal sheet 10 has a jacket portion 6 ', which is provided to form the shell 6, and at least one annular body portion 8', 9 '; which is provided for forming the respective annular body 8, 9.
  • the sheet metal blank 10 is a so-called tailored blank and is characterized in that said areas 6 ', 8', 9 'can be designed differently. They differ, for example, by their wall thicknesses and / or by their materials. In the example, the metal sheet 10 has a smaller wall thickness in the jacket region 6 'than in the annular body regions 8', 9 '.
  • these regions 6 ', 8', 9 'of different wall thickness can be formed during roll forming of the sheet metal blank 10.
  • roll-formed sheets 15, 16, 17 of different wall thicknesses are welded together by welds 18, 19 at their lateral longitudinal edges in order to produce the respective sheet metal blank 10 is preferred.
  • the individual partial plates 15, 16, 17 are provided in the form of sheet metal strips on corresponding rollers or coils. From these coils, the metal sheets are unrolled, along the welds 18, 19 connected to each other, whereby a web is formed, which can also be rolled up on a roll. From the latter role can then roll a metal sheet and separate to the individual sheet metal blanks 10, whereby the abutting edges 11 arise.
  • the sheet metal blank 10 extends in a plane.
  • the sheet metal blank 10 is roll formed, that is formed by rolling, wherein the roll forming is performed with respect to the longitudinal center axis 4 of the housing 2 to be produced. Accordingly, the shell portion 6 'during roll forming the shell 6, while the annular body portions 8', 9 'during roll forming the respective annular body 8, 9 form.
  • Fig. 7 shown state in which the abutting edges 11 are opposite to each other.
  • Fig. 8 the abutting edges 11 of the roll-formed sheet metal blank 10 are connected together.
  • An appropriate connection is in Fig. 8 denoted by 20.
  • This connection 20 is preferably a weld.
  • the blank of the sheet metal blank 10 is selected so that after the roll forming of the sheet metal blank 10, a straight-line butt joint 20 is formed.
  • the rolling method is preferably carried out such that this butt joint 20 extends only axially, ie parallel to the longitudinal central axis 4.
  • the housing 2 thereby has a single butt joint 20 which extends in the axial direction over the entire housing 2 or over the casing 6 and over the respective annular body 8, 9 formed thereon.
  • the sheath 6 and the annular body 8, 9 are finally formed after the production of the butt joint 20.
  • This final shaping includes, for example, forming at least one of the ring bodies 8, 9 into a funnel.
  • the end molding may additionally or alternatively also include the molding of a flange 21, as in the Fig. 1 and 2 is shown.
  • the flange 21 is designed circumferentially in the circumferential direction. Additionally or alternatively it can be provided, before the end molding of the shell 6 and the respective annular body 8, 9, the at least one exhaust gas treatment element 5 together with the respective bearing mat 7 in to use the housing 2 or in the jacket 6, so-called Canning.
  • Fig. 2 be provided to grow a probe 23 to the housing 2, here to the right annular body.
  • the sheet metal blank 10 is designed or the roll forming of the sheet metal blank 10 is performed so that the housing 2, the respective larger wall thickness 13, 14 applies only to the outside.
  • a uniform inner cross-section is realized for the interior of the housing 2 for the section of the housing 2 accommodating the respective exhaust-gas treatment element 5, which facilitates the insertion of the respective exhaust-gas treatment element 5.
  • the respective exhaust-gas treatment element 5 can extend in the axial direction into at least one of the annular bodies 8, so that, as in FIGS Fig. 1 to 3 indicated, between the respective annular body 8, 9 and the respective dispensing treatment element 5 may result in an axial overlap.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (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)
EP10159599A 2009-04-24 2010-04-12 Boîtier pour un dispositif pour la purification de gaz d'échappement et méthode de fabrication Ceased EP2246536A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009018823A DE102009018823A1 (de) 2009-04-24 2009-04-24 Gehäuse für eine Abgasbehandlungseinrichtung und Herstellungsverfahren

Publications (1)

Publication Number Publication Date
EP2246536A1 true EP2246536A1 (fr) 2010-11-03

Family

ID=42224714

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10159599A Ceased EP2246536A1 (fr) 2009-04-24 2010-04-12 Boîtier pour un dispositif pour la purification de gaz d'échappement et méthode de fabrication

Country Status (3)

Country Link
US (1) US8790582B2 (fr)
EP (1) EP2246536A1 (fr)
DE (1) DE102009018823A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6056781B2 (ja) * 2013-04-10 2017-01-11 トヨタ自動車株式会社 マフラー製造方法及びマフラー

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002020208A1 (fr) * 2000-09-06 2002-03-14 Toyota Jidosha Kabushiki Kaisha Element creux et son procede de fabrication, utilisation de l'element creux dans un systeme de distribution de liquide et appareil de fabrication pour element creux
EP1243768A2 (fr) * 2001-03-21 2002-09-25 Calsonic Kansei Corporation Procédé de fabrication d'un convertisseur catalytique
EP1980728A1 (fr) * 2007-04-12 2008-10-15 J. Eberspächer GmbH Co. KG Composant de tôle d'emboutissage dans une structure à coque

Family Cites Families (12)

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Publication number Priority date Publication date Assignee Title
US3989471A (en) * 1975-04-14 1976-11-02 Tenneco Inc. Radial flow catalytic converter having thermal expansion compensating means
DE4113855A1 (de) * 1991-04-27 1992-08-20 Bayerische Motoren Werke Ag Konischer wickel-schalldaempfer
DE4445557A1 (de) * 1994-12-20 1996-06-27 Emitec Emissionstechnologie Doppelwandiges Gehäuse, insbesondere für Abgas-Katalysatoren von Kraftfahrzeugen
DE19711789C2 (de) 1997-03-21 2000-05-25 Zeuna Staerker Kg Kraftfahrzeug-Abgasreinigungsvorrichtung und Verfahren zu ihrer Herstellung
US20020071791A1 (en) * 2000-12-13 2002-06-13 Foster Michael Ralph Catalytic converter
US6763948B2 (en) * 2001-07-20 2004-07-20 Rotex, Inc. Screening machine with acceleration modification
JP2005507043A (ja) * 2001-10-26 2005-03-10 ドナルドソン カンパニー，インコーポレイティド コア構造体装置およびその製造方法
DE10358504B4 (de) * 2003-12-13 2006-02-23 Daimlerchrysler Ag Verfahren zur Herstellung eines Katalysatorgehäuses
DE202005001616U1 (de) * 2005-02-01 2005-05-25 Roth-Technik Austria Ges.M.B.H. Lösbare Verbindung von Profilbauteilen mit Zentrierringen
DE102005012067A1 (de) * 2005-03-16 2006-10-12 Emitec Gesellschaft Für Emissionstechnologie Mbh Gehäuse für eine Abgasbehandlungskomponente mit Verstärkungshülse
US20070011874A1 (en) * 2005-07-18 2007-01-18 Myers Stephen J Exhaust treatment devices and methods of making the same
DE102007062662A1 (de) * 2007-12-24 2009-06-25 J. Eberspächer GmbH & Co. KG Schiebesitz und Abgasbehandlungseinrichtung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002020208A1 (fr) * 2000-09-06 2002-03-14 Toyota Jidosha Kabushiki Kaisha Element creux et son procede de fabrication, utilisation de l'element creux dans un systeme de distribution de liquide et appareil de fabrication pour element creux
EP1243768A2 (fr) * 2001-03-21 2002-09-25 Calsonic Kansei Corporation Procédé de fabrication d'un convertisseur catalytique
EP1980728A1 (fr) * 2007-04-12 2008-10-15 J. Eberspächer GmbH Co. KG Composant de tôle d'emboutissage dans une structure à coque

Also Published As

Publication number Publication date
US8790582B2 (en) 2014-07-29
US20100269495A1 (en) 2010-10-28
DE102009018823A1 (de) 2010-11-04

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