EP1413719B1 - Collecteur d'échappement pour véhicule propulsé par un moteur à combustion ainsi qu'un système de gaz d'échappement comprenant un tel collecteur d'échappement - Google Patents

Collecteur d'échappement pour véhicule propulsé par un moteur à combustion ainsi qu'un système de gaz d'échappement comprenant un tel collecteur d'échappement Download PDF

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Publication number
EP1413719B1
EP1413719B1 EP20030020140 EP03020140A EP1413719B1 EP 1413719 B1 EP1413719 B1 EP 1413719B1 EP 20030020140 EP20030020140 EP 20030020140 EP 03020140 A EP03020140 A EP 03020140A EP 1413719 B1 EP1413719 B1 EP 1413719B1
Authority
EP
European Patent Office
Prior art keywords
exhaust manifold
webs
individual
exhaust
pipes
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 - Fee Related
Application number
EP20030020140
Other languages
German (de)
English (en)
Other versions
EP1413719A2 (fr
EP1413719A3 (fr
Inventor
Günter Schmelzer
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.)
Faurecia Emissions Control Technologies Germany GmbH
Original Assignee
Emcon Technologies Germany Augsburg 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 Emcon Technologies Germany Augsburg GmbH filed Critical Emcon Technologies Germany Augsburg GmbH
Publication of EP1413719A2 publication Critical patent/EP1413719A2/fr
Publication of EP1413719A3 publication Critical patent/EP1413719A3/fr
Application granted granted Critical
Publication of EP1413719B1 publication Critical patent/EP1413719B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • F01N13/10—Other arrangements or adaptations of exhaust conduits of exhaust manifolds
    • 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 present invention relates to an exhaust manifold for a motor vehicle driven by internal combustion engine, comprising a plurality of individual individual tubes, which are combined on the output side to a tube bundle with adjacent tube wall sections, wherein the output ends of the individual tubes are welded to arranged between the adjacent tube wall sections webs. Furthermore, the present invention relates to such an exhaust manifold and at least one component downstream of this exhaust system.
  • An exhaust manifold of the type indicated above is known from DE 10051277 A1 known.
  • This exhaust manifold comprises a plurality of individual tubes and an adapter with which the individual tubes are connected on the output side.
  • the adapter to which in turn the exhaust manifold immediately downstream component of the exhaust system can be connected, consists of an annular wall with a plurality of radially aligned webs, wherein a receptacle is formed by two adjacent webs and a connecting portion of the annular wall , in which one of the individual tubes is inserted with its output-side end.
  • each individual tube is welded in each case to the two adjacent webs and to the corresponding section of the annular wall, for which purpose the webs project beyond the end edges of the individual tubes.
  • a disadvantage of the DE 10051277 A1 known exhaust manifold is in particular the high production costs associated with the production of the manifold. In this context, in particular the considerable production costs for the adapter play a role.
  • Another disadvantage of the known from this document design of the exhaust manifold is that in the production of said fillet welds inside the individual pipes can adhere spatters and that further a weld elevation can lead to a constriction of the flow cross-section.
  • the welding spatters can not only lead to an impairment of the flow conditions within the individual tubes; rather, they can, which is even more serious, solve in operation and lead to damage to downstream components (eg exhaust gas turbocharger, catalysts).
  • exhaust manifold in which two individual tubes which have been flattened in the form of D-shaped in the region of their output ends, are inserted back to back abutting each other in a downstream exhaust pipe.
  • the two individual tubes can be welded together in the region of the connection plane.
  • various lifetime issues have been observed; In particular, where the individual tubes abut each other, it can lead to stress-induced deformations, as a result of leakage problems occur and / or tear welds.
  • the EP 0 736 678 A2 shows an exhaust manifold, in which four pipes are flattened in the region of their exhaust-side end to a circle segment quarter. The four quarters are welded together with their flat sides.
  • the present invention seeks to provide a durable, reliable exhaust manifold of the type described, which can be produced with a comparatively low production cost and at a correspondingly low cost.
  • two individual tubes in the region of their adjacent tube wall sections can be connected to one another with a single weld seam as well as to the web arranged between the respective tube wall sections.
  • the present invention makes it possible to perform the respective welds as grooved welds; In this way, the risk that spatter inside reach the individual tubes, significantly reduced compared with that of the DE 10051277 A1 known construction.
  • the outlet-side ends of the individual tubes during the production of the exhaust manifold even be closed, whereby a penetration of weld spatter into the individual tubes is definitely excluded.
  • the webs can be designed as a simple sheet metal parts, with identical web material, as will be explained in detail below, even for different exhaust manifolds can be used; this too is a significant advantage over the prior art which requires different adapters for different exhaust manifolds.
  • the exhaust manifold immediately downstream component of the exhaust system directly to the individual pipes, on which the said component is plugged connected. So does the omission of the adapter of the exhaust manifold after the DE 10051277 A1 provided annular wall immediately in reduced material costs.
  • a preferred development of the invention is characterized in that the Webs are designed as independent single webs, which are not connected to each other before mounting the exhaust manifold.
  • Identical individual webs which particularly preferably consist of sheets bent along one edge, can be used for different exhaust manifolds, for example for exhaust manifolds of the 3-in-1 construction, the 4-in-1 construction and the 5-in-1 Design type. This advantage clearly contributes to the possibility of significant cost savings.
  • the webs if they are designed in the sense set out above as individual webs, particularly preferably with one of their associated individual tubes are connected before they are joined together to form a tube bundle.
  • welding methods known as such (tack welding) and adhesive methods are suitable.
  • the webs are designed as single webs in the sense set out above. Rather, the webs may be part of a uniform star-shaped web component.
  • the web component may in particular consist of a multiply folded, sheet metal strip, wherein each web has at least two layers of the sheet metal strip.
  • the effort associated with folding the sheet metal strip into a unitary web component comprising a plurality of webs is optionally more than offset by cost savings resulting from the use of a relatively thin-walled, relatively inexpensive sheet material for producing the web component.
  • the four individual tubes may be connected to each other by two respective L-shaped welds and with the four arranged between the individual tubes webs, as will be explained in more detail below.
  • the present invention does not require that all individual tubes in the region of their respective outlet-side end coincidentally have a circular segment-shaped cross-section; Rather, for example, an embodiment of the exhaust manifold according to the invention in such a way that in the region of the outlet end a plurality of individual tubes are grouped around a centrally arranged single tube.
  • FIG. 1 shown single tube 1 has an inlet-side end 2 and an outlet-side end 3. It is, depending on the structural conditions, ie the installation conditions of the exhaust system relative to the associated internal combustion engine, repeatedly bent between its inlet-side end 2 and its outlet-side end 3.
  • the single tube 1 which otherwise has a substantially round cross-section, reshaped in such a way that it has a cross section substantially corresponding to a quarter-circle segment.
  • two substantially planar pipe wall sections 4 and 5 arranged at a right angle to each other and an outer pipe wall section 6 curved substantially along a quarter circle are provided.
  • a web 8 designed as a single web 7 is attached by means of a resistance spot weld 9.
  • the single web has a turn 11 on, whose function and dimensioning out Fig. 2 results.
  • each of the individual tubes 1 as they are in kind in Fig. 1 illustrates are, assembled in such a way that in each case between two adjacent individual tubes in the region of the adjacent planar tube wall sections is a single web 7.
  • the four individual tubes 1 are connected to one another in the region of their outlet-side ends 3.
  • the two welds 13 pull without interruption L-shaped along the flat tube wall sections of two diametrically opposed individual tubes along; In other words, each weld 13 extends without interruption along two adjacent webs 8.
  • the welds begin and end at the respective radial outer edge 15 of the webs 8.
  • the downstream component (exhaust pipe, catalyst or the like), not shown, is pushed with a tubular section over the exit end 16 of the exhaust manifold 12; and the component is welded via a corresponding circumferential weld directly with the combined there to form a tube bundle individual tubes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)

Claims (9)

  1. Collecteur d'échappement (12) pour un véhicule automobile entraîné par un moteur à combustion interne, comportant une pluralité de tubes individuels uniques (1) qui sont réunis du côté sortie pour former un faisceau de tubes présentant des tronçons de paroi de tube (4, 5) adjacents les uns aux autres, les extrémités (3) côté sortie des tubes individuels (1) étant soudées à des barrettes (8) agencées entre les tronçons de paroi de tube (4, 5) adjacents les uns aux autres, caractérisé en ce que
    - les barrettes (8) sont en retrait par rapport aux arêtes frontales côté sortie des tubes individuels (1), et
    - deux tubes individuels (1) sont respectivement reliés l'un à l'autre côté face frontale au moyen d'un soudage de gorge (14) recouvrant la barrette (8) agencée entre eux.
  2. Collecteur d'échappement selon la revendication 1,
    caractérisé en ce que
    les barrettes (8) sont réalisées sous forme de barrettes individuelles (7).
  3. Collecteur d'échappement selon la revendication 1 ou la revendication 2,
    caractérisé en ce que
    les barrettes individuelles (7) sont composées de tôles présentant un coude (11) le long d'une arête.
  4. Collecteur d'échappement selon la revendication 2 ou la revendication 3,
    caractérisé en ce que
    les barrettes individuelles (7) ont chacune été reliées à l'un des tubes individuels (1) qui leur est associé avant que ceux-ci ont été réunis pour former un faisceau de tubes.
  5. Collecteur d'échappement selon la revendication 1,
    caractérisé en ce que
    les barrettes (8) font partie d'un composant de barrette unitaire.
  6. Collecteur d'échappement selon la revendication 5,
    caractérisé en ce que
    le composant de barrette est composé d'un ruban de tôle plié, chaque barrette présentant au moins deux couches du ruban de tôle.
  7. Collecteur d'échappement selon l'une des revendications 1 à 6,
    caractérisé en ce que
    l'épaisseur des barrettes (8) constitue entre 1,5 fois et 3,5 fois la valeur de l'épaisseur de paroi des tubes individuels (1).
  8. Collecteur d'échappement selon l'une des revendications 1 à 7,
    caractérisé en ce que
    un joint soudé (13) est respectivement réalisé de façon continue le long de deux barrettes (8).
  9. Ensemble d'une installation de gaz d'échappement pour un véhicule automobile entraîné par un moteur à combustion interne, comportant un collecteur d'échappement (12) selon l'une des revendications précédentes et au moins un composant (tube, silencieux, filtre, catalyseur ou similaire) agencé en aval de celui-ci,
    le composant de l'installation de gaz d'échappement agencé directement en aval du collecteur d'échappement étant directement relié aux tubes individuels (1) sur lesquels ledit composant est placé.
EP20030020140 2002-10-23 2003-09-05 Collecteur d'échappement pour véhicule propulsé par un moteur à combustion ainsi qu'un système de gaz d'échappement comprenant un tel collecteur d'échappement Expired - Fee Related EP1413719B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10249281 2002-10-23
DE2002149281 DE10249281C1 (de) 2002-10-23 2002-10-23 Abgaskrümmer für ein verbrennungsmotorisch angetriebenes Kraftfahrzeug sowie einen derartigen Abgaskrümmer umfassende Baugruppe einer Abgasanlage

Publications (3)

Publication Number Publication Date
EP1413719A2 EP1413719A2 (fr) 2004-04-28
EP1413719A3 EP1413719A3 (fr) 2004-09-22
EP1413719B1 true EP1413719B1 (fr) 2010-11-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP20030020140 Expired - Fee Related EP1413719B1 (fr) 2002-10-23 2003-09-05 Collecteur d'échappement pour véhicule propulsé par un moteur à combustion ainsi qu'un système de gaz d'échappement comprenant un tel collecteur d'échappement

Country Status (2)

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EP (1) EP1413719B1 (fr)
DE (2) DE10249281C1 (fr)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3336056A (en) * 1965-03-25 1967-08-15 Gen Motors Corp Conduit system
JP3334454B2 (ja) * 1995-04-03 2002-10-15 トヨタ自動車株式会社 エキゾーストマニホルド集合部構造
JP2856705B2 (ja) * 1996-05-08 1999-02-10 株式会社三五 合流管とその製造方法
DE10051277A1 (de) * 2000-10-16 2002-04-25 Eberspaecher J Gmbh & Co Abgaskrümmer
JP3509796B2 (ja) * 2001-09-14 2004-03-22 本田技研工業株式会社 エキゾーストマニホールド
JP4287125B2 (ja) * 2002-02-18 2009-07-01 三桜工業株式会社 フランジに対する配管の接合構造

Also Published As

Publication number Publication date
EP1413719A2 (fr) 2004-04-28
DE50313253D1 (de) 2010-12-23
DE10249281C1 (de) 2003-11-20
EP1413719A3 (fr) 2004-09-22

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