EP2474722A2 - Composant de bride et procédé de fabrication - Google Patents

Composant de bride et procédé de fabrication Download PDF

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Publication number
EP2474722A2
EP2474722A2 EP12150601A EP12150601A EP2474722A2 EP 2474722 A2 EP2474722 A2 EP 2474722A2 EP 12150601 A EP12150601 A EP 12150601A EP 12150601 A EP12150601 A EP 12150601A EP 2474722 A2 EP2474722 A2 EP 2474722A2
Authority
EP
European Patent Office
Prior art keywords
flange
pot
pipe section
collar
piece
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Withdrawn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
EP12150601A
Other languages
German (de)
English (en)
Other versions
EP2474722A3 (de
Inventor
Markus Schmitt
Michael Schmidt
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 Exhaust Technology 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 EP2474722A2 publication Critical patent/EP2474722A2/fr
Publication of EP2474722A3 publication Critical patent/EP2474722A3/de
Withdrawn legal-status Critical Current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
    • 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
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • 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
    • F01N13/1805—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
    • 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
    • F01N13/1872—Construction facilitating manufacture, assembly, or disassembly the assembly using stamp-formed parts or otherwise deformed sheet-metal

Definitions

  • the present invention relates to a flange component for a component of an exhaust system for an internal combustion engine, in particular of a motor vehicle.
  • the present invention also relates to an exhaust gas treatment device equipped with at least one such flange component and to an exhaust system equipped with at least one such flange component. Furthermore, the present invention relates to a method for producing such a flange component.
  • a flow guidance function is to be assigned to the flange
  • a pipe piece to the flange which projects from the flange with a longitudinal central axis perpendicular to a flange plane from the flange.
  • Such a pipe piece can be welded to the flange, for example.
  • the pipe section can serve, for example, as an inner wall for the realization of an air gap insulation and / or as an inlet funnel or outlet funnel.
  • the present invention is concerned with the problem of providing an improved embodiment for such a flange component or for an exhaust gas treatment device equipped therewith or for a production method suitable therefor, which is characterized in particular in that the flange component comparatively can be produced inexpensively.
  • the invention is based on the general idea to produce the flange with the flange and the pipe piece of a single piece of sheet metal by forming.
  • the thus configured as a one-piece or one-piece, integral sheet-metal molded flange component can be produced particularly easily by means of forming technology.
  • thermoforming methods are suitable for molding the flange component.
  • Such forming processes can be realized comparatively inexpensively.
  • the flange may have a ring portion which surrounds the tubular piece in a ring-shaped closed manner.
  • the annular region can be designed annular. This allows the flange to stiffen the tube at the transition to the flange.
  • the flange may have a plurality of circumferentially distributed, radially outwardly projecting mounting portions, with which the flange is fastened to a flange complementary to the flange. Since the flange in this way protrudes radially outward only in the region of the connection points to the mating flange, it otherwise builds comparatively compact, lightweight and, accordingly, inexpensive.
  • the attachment regions can each have at least one attachment opening through which, for example, a screw connection can be realized.
  • the attachment areas can protrude in particular from the ring area, expediently radially, to the outside.
  • the flange may have radially outwardly a flange collar which projects from the flange on the same side as the pipe piece.
  • a flange collar which projects from the flange on the same side as the pipe piece.
  • the tube piece axially spaced from the flange may have a closed circumferential, inwardly projecting annular step. With the help of such an annular step and the pipe section can be stabilized or stiffened distal to the flange.
  • the pipe section from the flange plane to the annular step is cylindrical or substantially cylindrical.
  • the pipe section is particularly simple and therefore inexpensive by Deep drawing can be produced.
  • a slight conicity of the pipe section can hardly be avoided due to the production, so that the pipe section is then not perfectly cylindrical, but only substantially cylindrical.
  • the pipe section may have a pipe piece collar which protrudes from the ring step on a side facing away from the flange, wherein this pipe section collar also has a longitudinal central axis perpendicular to the flange plane.
  • this pipe section collar also has a longitudinal central axis perpendicular to the flange plane.
  • the longitudinal center axes of the tube piece collar and the tube piece coincide, so that tube piece and tube piece collar are arranged coaxially. Since the tube piece collar protrudes from the, in particular radially, inwardly projecting annular step in the axial direction, the tube piece collar has at least a smaller inner cross-section than the remaining piece of pipe between annular step and flange.
  • the tube piece collar can be configured cylindrical or substantially cylindrical.
  • a slight conicity of the tube piece collar can hardly be avoided due to the production, so that the tube piece collar is then not perfectly cylindrical, but only substantially cylindrical.
  • the pipe section may be cylindrical or conical, at least between flange and ring step.
  • the pipe collar piece can be cylindrical or conical.
  • the cross section of the pipe section and / or the pipe piece collar can be configured circular or elliptical or oval.
  • a conical pipe section and / or conical pipe collar in particular a funnel shape for the pipe section can be realized.
  • a funnel configuration also results in the case when the pipe section and the Pipe collar are configured substantially cylindrical. If the flange is made by deep drawing, both the pipe section and the optionally existing pipe neck collar inevitably have a certain taper in order to facilitate a final forming of the formed flange of each thermoforming tool.
  • An inventive manufacturing method is characterized in that from a flat blank made of sheet metal by deep-drawing a pot is formed, which has a flat bottom at one axial end and a flat, radially outwardly projecting pot edge at the other axial end, wherein pot bottom and pot edge by a Tubular body forming pot wall are interconnected.
  • this intermediate product namely the pot, the flange component presented here can now be produced particularly easily.
  • an inner pot region can be cut out of the bottom of the pot, for example by a punching process, and an outer edge region can be cut off from the pot edge, for example by means of a stamping process.
  • this separation step remains from the pot a radially inwardly projecting Topfêtrest and a radially outwardly projecting edge of the pot rim.
  • this separation process can be linked to a further forming process.
  • a flange can be formed from the pot edge rest by deep drawing, which extends in a flange plane.
  • an axial end section of the tubular body can be formed from the pot bottom residue by deep drawing.
  • the abovementioned ring step and the tube piece collar can be formed on the axial end section of the tube body. This is the reshaping the pot bottom residue to the end portion expediently designed so that a radially outer region of the pot bottom rest forms an inwardly projecting annular step of the pot wall, while a radially inner region of the pot bottom rest forms a protruding from the annular step and pointing away from the flange pipe collar.
  • An exhaust gas treatment device is characterized by a housing for accommodating at least one exhaust gas treatment element from the group particle filter, catalytic converter and silencer. At least one connection is formed on this housing, through which exhaust gas can enter into the housing (inlet connection) or through which exhaust gas can exit from the housing (outlet connection).
  • a flange component of the type described above is provided at the respective connection.
  • the respective connection may have the respective flange component. It is also possible to form the respective connection by the respective flange component.
  • An exhaust system according to the invention comprises at least one exhaust gas treatment device of the aforementioned type.
  • a flange component 1 comprises a flange 2 and a pipe piece 3.
  • the flange component 1 can be used in a component of an exhaust system, for example at an inlet connection or at an outlet connection.
  • the exhaust system is used in an internal combustion engine, which may be arranged in particular in a motor vehicle, for discharging combustion exhaust gases.
  • the flange 2 extends in a flange plane 4.
  • the pipe section 3 has a longitudinal central axis 5, which is perpendicular to the flange 4. Accordingly, the pipe section 3 is on one side of the flange 4 from the flange 2 from.
  • the flange component 1 presented here is designed as an integral sheet metal body, which consists of a single, in Fig. 2 produced in the raw state sheet metal piece 6 is made by forming.
  • the flange 2 has an annular region 7, which surrounds the tubular piece 3 in an annular manner.
  • the ring portion 7 is configured annular.
  • the flange 2 also has a plurality of attachment portions 8 distributed in the circumferential direction.
  • the attachment regions 8 are also located in the flange plane 4 and project radially outwards from the annular region 7.
  • the flange 1 can be attached to a flange 2 complementary, not shown here counter flange.
  • the respective attachment region 8 may include a fastening opening 9, through which, for example, a screwing of the flange 2 with said counter flange can be realized.
  • the flange 2 also has a flange collar 10, which is formed radially on the outside of the flange 2 and protrudes on the same side as the pipe section 3 from the flange 2.
  • the flange collar 10 expediently runs closed in the circumferential direction.
  • the flange collar 10 is arranged radially outside along the annular region 7, enclosing the fastening regions 8.
  • the flange collar 10 is formed by an angled edge of the flange 4 outer edge of the flange 2.
  • the pipe section 3 adjoins the radially inner end of the annular region 7 and has axially spaced from the flange 2, that is, a distal to the flange 2 a Ring stage 11, which rotates closed in the circumferential direction and also protrudes inward.
  • the ring stage 11 is arranged coaxially to the longitudinal central axis 5.
  • a pipe piece collar 12 connects to the rest of the pipe section 3.
  • the tube piece collar 12 forms a part of the tube piece 3, namely the axial end of the tube piece 3 which is distal with respect to the flange 2.
  • Said tube piece collar 12 stands axially against a side remote from the flange 2 from the ring step 11.
  • a longitudinal central axis 13 of the tube piece collar 12 advantageously coincides with the longitudinal central axis 5 of the remaining tube piece 3.
  • the pipe section collar 12 extends coaxially with the pipe section 3.
  • the longitudinal center axis 13 of the pipe section collar 12 is perpendicular to the flange 4.
  • the pipe section 3 is cylindrical or slightly conical.
  • the pipe section collar 12 may in turn be configured cylindrical or slightly conical.
  • pipe piece 3 and pipe piece collar 12 each have circular cross-sections.
  • a dome can be formed on the pipe section 3 in a region 14, via which a probe can be connected to the flange component 1.
  • This dome can also be formed integrally on the flange component 1, for example by means of forming technology.
  • Fig. 2 shows a metal sheet 15 which is fed in a feed direction 16 a forming tool or performed by a forming tool.
  • this metal sheet 15 rectangular or square track sections 17 follow each other endlessly. These track sections 17 are dimensioned so that in each case a circular Sheet metal piece 6 is punched out of it. After punching out the sheet metal piece 6 remains in the web section 17 a complementary circular opening 18.
  • the sheet metal piece 6 forms a blank 19, which is flat in the initial state.
  • Fig. 3 is formed from the flat blank 19 by deep drawing a pot 20.
  • the pot 20 has at one axial end a flat pot bottom 21 and at the other axial end a flat, radially outwardly projecting pot edge 22.
  • Cup bottom 21 and pot rim 22 are connected by an annular or sleeve-shaped pot wall 23, which is already a basic shape of the tubular body. 3 forms.
  • the deep drawing of the pot 20 can be done in several stages. For example, shows Fig. 3 the result of a preliminary stage while Fig. 4 shows the result of a final stage, which can also be called a look-up stage. Recognizable is the pot 20 according to Fig. 4 extends the pot wall 23 in the axial direction.
  • Fig. 8 generates the mounting holes 9, whereby the flange 2 and thus also the flange 1 is completed.
  • the production of the fastening openings 9 can also be carried out simultaneously with the shaping of the flange collar 10 and / or of the tube piece collar 12.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
  • Exhaust Gas After Treatment (AREA)
EP12150601.8A 2011-01-11 2012-01-10 Flanschbauteil und Herstellungsverfahren Withdrawn EP2474722A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201110002492 DE102011002492A1 (de) 2011-01-11 2011-01-11 Flanschbauteil und Herstellungsverfahren

Publications (2)

Publication Number Publication Date
EP2474722A2 true EP2474722A2 (fr) 2012-07-11
EP2474722A3 EP2474722A3 (de) 2013-11-13

Family

ID=45497838

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12150601.8A Withdrawn EP2474722A3 (de) 2011-01-11 2012-01-10 Flanschbauteil und Herstellungsverfahren

Country Status (3)

Country Link
US (1) US9140171B2 (fr)
EP (1) EP2474722A3 (fr)
DE (1) DE102011002492A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020066721A1 (fr) * 2018-09-27 2020-04-02 Aisin Takaoka Co., Ltd. Procédé de fabrication de partie de liaison

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10570778B2 (en) * 2017-09-11 2020-02-25 Ford Global Technologies, Llc Coupling system for turbocharger and emission control device
US20190368770A1 (en) * 2018-05-29 2019-12-05 John P. Hanus Under Cabinet Ventilation System
DE102021101438B3 (de) 2021-01-22 2022-01-13 Airbus Defence and Space GmbH Verbinder für ein strukturintegriertes Leitungssystem

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3179449A (en) * 1960-11-21 1965-04-20 Walker Mfg Co Pipe joint having internally stressed flange providing continuing axial bias
FR2449840A1 (fr) * 1979-02-20 1980-09-19 Renault Jonction a rotule
DE4429878A1 (de) * 1994-08-23 1996-03-07 Emitec Emissionstechnologie Abgassystem für eine Verbrennungskraftmaschine
DE29615840U1 (de) * 1996-09-11 1996-10-24 Heinrich Gillet Gmbh & Co Kg, 67480 Edenkoben Abgaskrümmer mit Flansch
DE59608215D1 (de) * 1996-12-20 2001-12-20 Zeuna Staerker Kg Abgassammler und Verfahren zu seiner Herstellung
US6908595B1 (en) * 1999-01-22 2005-06-21 Benteler Automotive Corporation Vacuum-insulated exhaust treatment devices, such as catalytic converters, with passive controls
DE19960619A1 (de) * 1999-12-16 2001-07-05 Daimler Chrysler Ag Anordnung zur Befestigung eines Flansches
US6312022B1 (en) * 2000-03-27 2001-11-06 Metex Mfg. Corporation Pipe joint and seal
US7093861B2 (en) * 2000-08-31 2006-08-22 Suncall Corporation Exhaust pipe joint structure and coil spring used in the same
CN100537814C (zh) * 2004-04-19 2009-09-09 日立金属株式会社 高Cr高Ni奥氏体系耐热铸钢及由其构成的排气系统零件
DE102006050052B4 (de) * 2006-10-24 2008-11-27 Fischer & Kaufmann Gmbh & Co. Kg Gehäuseschale eines Abgasfilters und Verfahren zu deren Herstellung
DE202007012642U1 (de) * 2007-08-30 2008-06-19 Mayr + Hönes GmbH Leitungsverbindungselement
KR101000224B1 (ko) * 2008-12-04 2010-12-10 현대자동차주식회사 차량용 촉매장치

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020066721A1 (fr) * 2018-09-27 2020-04-02 Aisin Takaoka Co., Ltd. Procédé de fabrication de partie de liaison
AU2019345494B2 (en) * 2018-09-27 2022-03-17 Aisin Takaoka Co., Ltd. Method of manufacturing connection portion
US11951521B2 (en) 2018-09-27 2024-04-09 Aisin Takaoka Co., Ltd. Method of manufacturing connection member

Also Published As

Publication number Publication date
US20120174560A1 (en) 2012-07-12
EP2474722A3 (de) 2013-11-13
US9140171B2 (en) 2015-09-22
DE102011002492A1 (de) 2012-07-12

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