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EP1905974B2 - Exhaust manifold - Google Patents

Exhaust manifold Download PDF

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Publication number
EP1905974B2
EP1905974B2 EP07008323.3A EP07008323A EP1905974B2 EP 1905974 B2 EP1905974 B2 EP 1905974B2 EP 07008323 A EP07008323 A EP 07008323A EP 1905974 B2 EP1905974 B2 EP 1905974B2
Authority
EP
European Patent Office
Prior art keywords
exhaust gas
exhaust manifold
exhaust
accordance
base element
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.)
Active
Application number
EP07008323.3A
Other languages
German (de)
French (fr)
Other versions
EP1905974B1 (en
EP1905974A3 (en
EP1905974A2 (en
Inventor
Rainer Diez
Frank Bühler
Nils Rippert
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.)
Friedrich Boysen GmbH and Co KG
Original Assignee
Friedrich Boysen GmbH and Co KG
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Publication date
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Application filed by Friedrich Boysen GmbH and Co KG filed Critical Friedrich Boysen GmbH and Co KG
Publication of EP1905974A2 publication Critical patent/EP1905974A2/en
Publication of EP1905974A3 publication Critical patent/EP1905974A3/en
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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
    • 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 ; 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
    • 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
    • F01N13/14—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 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
    • 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
    • F01N13/1861—Construction facilitating manufacture, assembly, or disassembly the assembly using parts formed by casting or moulding
    • 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 invention relates to an exhaust manifold, which comprises a flange with a plurality of exhaust gas passages and a fixedly connected to the flange exhaust guide member, wherein the flange has a the exhaust gas passage openings exhibiting base member and a fixed to the exhaust guide member facing flat side of the base member stop disc as a stop for the exhaust guide member and wherein a contour of the stop disc at least partially corresponds to the contour of the exhaust guide member in the region of its connection to the flange.
  • the flange part comprises a plurality of superimposed, connected by brazing plates.
  • a circular opening is provided, wherein the diameters of the openings in the various plates are chosen so that a sleeve of an exhaust guide can be inserted into the openings of one part of the plates and seated on another, adjacent to the cylinder head plate whose Opening is slightly smaller than the diameter of the sleeve.
  • exhaust manifolds which may be formed in particular as so-called air-gap manifold
  • a exhaust gas guide serving exhaust gas guide member is gas-tight and mechanically strong connected to the flange.
  • the exhaust guide member is welded to the flange. To comply with predetermined manufacturing dimensions for this exact positioning of the exhaust guide member on the flange is required.
  • a stop disc On one of the exhaust guide part facing flat side of the base member so a stop disc is also attached, which prevents lateral displacement of the patch on the flange exhaust guide member. This makes it possible to position the exhaust guide member without further aids in a predetermined position by the stop plate and then to weld.
  • the outer edge of the stop disk is set back in particular with respect to the edge of the base element and forms an outer contour which at least in sections corresponds to the inner contour of the exhaust gas guide part.
  • the exhaust guide member is slid over the stopper disc in this embodiment, i. the stop disk is after positioning with its outer edge at least partially on the inside of the exhaust gas guide part. This results in a good accessibility of the attachment areas to be welded.
  • stop disc inversely by the provision of one or more central recesses so that the formed by the recesses inner contour of the stop disc at least partially corresponds to the outer contour of the exhaust guide member.
  • the stop disc on one or more exhaust gas passage openings, which cover the exhaust gas passage openings of the base member.
  • the exhaust gas flow can be passed through the stop disk.
  • the stop disc is screwed to the base member.
  • Such a screw allows due to the provided in the stop plate and the base member holes or threaded holes exact positioning of both parts against each other.
  • the stopper plate may be welded to the base member.
  • centering holes and / or pins may be provided in the base member and / or the stop plate.
  • the stop disc is a stamped part.
  • the base member may advantageously be a stamped part. Such stampings are very economical to manufacture.
  • the base element is a lamellar flange composed of a plurality of lamellar disks arranged in parallel.
  • Such lamellar flanges have a high strength and are also inexpensive to manufacture.
  • the exhaust manifold may be an air gap insulated manifold having an inner portion and an outer portion spaced therefrom through an air gap.
  • the inner part consists in particular of a plurality of tubes, one end of which opens into the exhaust gas passage openings, while the outer part is preferably formed as a shell part with two half shells.
  • the exhaust gas guide part is connected to the base element and / or the stop disk by a welded connection, in particular a laser welding connection.
  • the edges of the stop disc form over its entire circumference a bearing surface for the connection region of the exhaust gas guide member, so that in this way a gas-tight and stable weld between the exhaust guide member and the flange is achieved.
  • the flange is a cylinder flange for attachment to the cylinder head of an internal combustion engine.
  • a corresponding stop disc can also be arranged at an output side, for example, two exhaust gas passage openings having provided flange of the exhaust manifold.
  • a flange 8 is shown for an exhaust manifold according to the invention. It comprises a base element 10 which has three exhaust gas passage openings 12 for the passage of the exhaust gases emerging from the internal combustion engine. Furthermore, eight arranged in the vicinity of the circumference mounting holes 14 are provided, can be performed by the corresponding screws for attachment to a cylinder head, not shown, of an internal combustion engine.
  • a stop plate 16 is arranged, which is smaller than the base member 10, so that it projects beyond the base member 10 at any point laterally, but rather a distance to the outer edge of the base member 10 remains and no mounting hole 14 is covered.
  • the stop disc 16 also has three exhaust gas passage openings 12 'which have the same diameter as the exhaust gas passage openings 12 of the base element 10 and are aligned with these in an assembly position.
  • a screw connection 18 is provided, through which the base member 10 and the stopper plate 16 are interconnected.
  • Fig. 2 shows an exhaust duct part 22 shown only in sections, consisting of an outer shell 24 and disposed therein pipes 26, which are connected to the flange 8.
  • the stop disk 16 is, as already mentioned above, so connected to the base member 10, that the exhaust gas passage openings 12, 12 'of both parts are aligned.
  • the outer shell 24 is pushed completely over the stop disk 16 and abuts the base element 10 at the end.
  • the inner contour of the outer shell 24 corresponds to the outer contour of the stop plate 16, so that both abut each other in the illustrated mounting position.
  • Outer shell 24 and stop disk 16 are connected to each other by a over the entire circumference of the outer shell 24 extending laser weld joint 28.
  • the end sections of the tubes 26 extend through both exhaust gas passage openings 12, 12 ', so that a projection 30 is formed on the side of the flange section 8 facing away from the stop plate 16.
  • the tubes 26 are fastened to the base element 10 in the region of the projection 30 by a laser welding connection 28 'extending over the circumference of the exhaust gas passage opening 12.
  • the continuous laser weld joint 28 'prevents the entry of exhaust gases into an air gap 32 between the tubes 26 and the outer shell 24.
  • the base element 10 may have a thickness of 6 mm and the stop disk 16 a thickness of 2 mm.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)

Abstract

The exhaust gas manifold includes a flange part (8) with several exhaust gas passages (12) and an exhaust gas guide part fixed to it. The flange part is made with a base element (10) and a stop washer (16) acting as a stop for the exhaust gas guide part. The stop washer corresponds at least partly to the shape of the exhaust gas guide part where it joins the flange part.

Description

Die Erfindung betrifft einen Abgaskrümmer, welcher ein Flanschteil mit mehreren Abgasdurchtrittsöffnungen und ein mit dem Flanschteil fest verbundenes Abgasführungsteil umfasst, wobei das Flanschteil ein die Abgasdurchtrittsöffnungen aufweisendes Basiselement und eine auf einer dem Abgasführungsteil zugewandten Flachseite des Basiselements befestigte Anschlagscheibe als Anschlag für das Abgasführungsteil aufweist und wobei eine Kontur der Anschlagscheibe zumindest abschnittsweise der Kontur des Abgasführungsteils im Bereich seiner Verbindung mit dem Flanschteil entspricht.The invention relates to an exhaust manifold, which comprises a flange with a plurality of exhaust gas passages and a fixedly connected to the flange exhaust guide member, wherein the flange has a the exhaust gas passage openings exhibiting base member and a fixed to the exhaust guide member facing flat side of the base member stop disc as a stop for the exhaust guide member and wherein a contour of the stop disc at least partially corresponds to the contour of the exhaust guide member in the region of its connection to the flange.

Aus der DE 89 14 153 U1 ist ein gattungsgemäßer Abgaskrümmer bekannt, dessen Flanschteil mehrere aufeinander gelegte, durch Hartlötung verbundene Platten umfasst. Für jeden Auslasskanal ist eine kreisförmige Öffnung vorgesehen, wobei die Durchmesser der Öffnungen in den verschiedenen Platten so gewählt sind, dass eine Hülse einer Abgasführung in die Öffnungen eines Teils der Platten eingesetzt werden kann und auf einer weiteren, an den Zylinderkopf angrenzenden Platte aufsitzt, deren Öffnung etwas kleiner als der Durchmesser der Hülse ist.From the DE 89 14 153 U1 a generic exhaust manifold is known, the flange part comprises a plurality of superimposed, connected by brazing plates. For each outlet channel a circular opening is provided, wherein the diameters of the openings in the various plates are chosen so that a sleeve of an exhaust guide can be inserted into the openings of one part of the plates and seated on another, adjacent to the cylinder head plate whose Opening is slightly smaller than the diameter of the sleeve.

Bei derartigen Abgaskrümmern, die insbesondere als so genannte Luftspaltkrümmer ausgebildet sein können, ist es erforderlich, dass ein der Abgasführung dienendes Abgasführungsteil gasdicht und mechanisch belastbar mit dem Flanschteil verbunden ist. Zu diesem Zweck wird das Abgasführungsteil mit dem Flanschteil verschweißt. Zur Einhaltung vorgegebener Fertigungsmaße ist hierzu eine exakte Positionierung des Abgasführungsteils auf dem Flanschteil erforderlich.In such exhaust manifolds, which may be formed in particular as so-called air-gap manifold, it is necessary that a exhaust gas guide serving exhaust gas guide member is gas-tight and mechanically strong connected to the flange. For this purpose, the exhaust guide member is welded to the flange. To comply with predetermined manufacturing dimensions for this exact positioning of the exhaust guide member on the flange is required.

Es ist Aufgabe der Erfindung, einen Abgaskrümmer zu schaffen, bei dem das Abgasführungsteil auf einfache und zugleich präzise Weise mit dem Flanschteil verbindbar ist.It is an object of the invention to provide an exhaust manifold, wherein the exhaust guide member is connected in a simple yet precise manner with the flange.

Die Lösung der Aufgabe erfolgt durch die Merkmale des Anspruchs 1.The object is achieved by the features of claim 1.

Auf einer der dem Abgasführungsteil zugewandten Flachseite des Basiselements wird also zusätzlich eine Anschlagscheibe angebracht, die ein seitliches Verschieben des auf das Flanschteil aufgesetzten Abgasführungsteils verhindert. Dadurch ist es möglich, das Abgasführungsteil ohne weitere Hilfsmittel in einer durch die Anschlagscheibe vorgegebenen Position zu positionieren und anschließend zu verschweißen.On one of the exhaust guide part facing flat side of the base member so a stop disc is also attached, which prevents lateral displacement of the patch on the flange exhaust guide member. This makes it possible to position the exhaust guide member without further aids in a predetermined position by the stop plate and then to weld.

Der äußere Rand der Anschlagscheibe ist hierfür insbesondere gegenüber dem Rand des Basiselements zurückversetzt und bildet eine Außenkontur, die zumindest abschnittsweise der Innenkontur des Abgasführungsteils entspricht. Das Abgasführungsteil wird bei dieser Ausführungsform über die Anschlagscheibe geschoben, d.h. die Anschlagscheibe liegt nach erfolgter Positionierung mit ihrer Außenkante zumindest abschnittsweise an der Innenseite des Abgasführungsteils an. Hierdurch ergibt sich eine gute Zugänglichkeit der zu verschweißenden Befestigungsbereiche.For this purpose, the outer edge of the stop disk is set back in particular with respect to the edge of the base element and forms an outer contour which at least in sections corresponds to the inner contour of the exhaust gas guide part. The exhaust guide member is slid over the stopper disc in this embodiment, i. the stop disk is after positioning with its outer edge at least partially on the inside of the exhaust gas guide part. This results in a good accessibility of the attachment areas to be welded.

Es ist aber auch möglich, die Anschlagscheibe umgekehrt durch das Vorsehen einer oder auch mehrerer zentraler Ausnehmungen so zu gestalten, dass die durch die Ausnehmungen ausgebildete Innenkontur der Anschlagscheibe zumindest abschnittsweise der Außenkontur des Abgasführungsteils entspricht.But it is also possible to make the stop disc inversely by the provision of one or more central recesses so that the formed by the recesses inner contour of the stop disc at least partially corresponds to the outer contour of the exhaust guide member.

Bei einer bevorzugten Ausführungsform der Erfindung weist die Anschlagscheibe eine oder mehrere Abgasdurchtrittsöffnungen auf, welche die Abgasdurchtrittsöffnungen des Basiselements überdecken. Somit kann der Abgasstrom durch die Anschlagscheibe hindurchgeführt werden.In a preferred embodiment of the invention, the stop disc on one or more exhaust gas passage openings, which cover the exhaust gas passage openings of the base member. Thus, the exhaust gas flow can be passed through the stop disk.

Bei einer vorteilhaften Ausführungsform der Erfindung ist die Anschlagscheibe mit dem Basiselement verschraubt. Eine derartige Schraubverbindung erlaubt durch die in der Anschlagscheibe und dem Basiselement vorgesehenen Bohrungen bzw. Gewindebohrungen eine exakte Positionierung beider Teile gegeneinander.In an advantageous embodiment of the invention, the stop disc is screwed to the base member. Such a screw allows due to the provided in the stop plate and the base member holes or threaded holes exact positioning of both parts against each other.

Alternativ kann die Anschlagscheibe mit dem Basiselement verschweißt sein. Zum exakten Positionieren können Zentrierbohrungen und/oder -stifte im Basiselement und/oder der Anschlagscheibe vorgesehen sein.Alternatively, the stopper plate may be welded to the base member. For exact positioning centering holes and / or pins may be provided in the base member and / or the stop plate.

Gemäß einer weiteren bevorzugten Ausführungsform ist die Anschlagscheibe ein Stanzteil. Auch das Basiselement kann vorteilhafterweise ein Stanzteil sein. Derartige Stanzteile sind sehr wirtschaftlich zu fertigen.According to a further preferred embodiment, the stop disc is a stamped part. Also, the base member may advantageously be a stamped part. Such stampings are very economical to manufacture.

Bei einer weiteren vorteilhaften Ausführungsform ist das Basiselement ein aus mehreren parallel angeordneten lamellenförmigen Scheiben zusammengesetzter Lamellenflansch. Derartige Lamellenflansche weisen eine hohe Festigkeit auf und sind ebenfalls kostengünstig zu fertigen.In a further advantageous embodiment, the base element is a lamellar flange composed of a plurality of lamellar disks arranged in parallel. Such lamellar flanges have a high strength and are also inexpensive to manufacture.

Alternativ kann der Abgaskrümmer ein luftspaltisolierter Krümmer mit einem Innenteil und einem davon durch einen Luftspalt beabstandeten Außenteil sein. Das Innenteil besteht insbesondere aus mehreren Rohren, deren eines Ende in den Abgasdurchtrittsöffnungen mündet, während das Außenteil bevorzugt als Schalenteil mit zwei Halbschalen ausgebildet ist.Alternatively, the exhaust manifold may be an air gap insulated manifold having an inner portion and an outer portion spaced therefrom through an air gap. The inner part consists in particular of a plurality of tubes, one end of which opens into the exhaust gas passage openings, while the outer part is preferably formed as a shell part with two half shells.

Bei einer weiteren bevorzugten Ausführungsform der Erfindung ist das Abgasführungsteil mit dem Basiselement und/oder der Anschlagscheibe durch eine Schweißverbindung, insbesondere eine Laserschweißverbindung, verbunden. Die Kanten der Anschlagscheibe bilden hierbei entlang ihres gesamten Umfangs eine Auflagefläche für den Verbindungsbereich des Abgasführungsteils, so dass hierdurch eine gasdichte und stabile Schweißverbindung zwischen dem Abgasführungsteil und dem Flanschteil erreicht wird.In a further preferred embodiment of the invention, the exhaust gas guide part is connected to the base element and / or the stop disk by a welded connection, in particular a laser welding connection. The edges of the stop disc form over its entire circumference a bearing surface for the connection region of the exhaust gas guide member, so that in this way a gas-tight and stable weld between the exhaust guide member and the flange is achieved.

Bevorzugt ist das Flanschteil ein Zylinderflansch zur Befestigung an dem Zylinderkopf einer Brennkraftmaschine. Eine entsprechende Anschlagscheibe kann aber auch bei einem ausgangsseitig angeordneten, beispielsweise zwei Abgasdurchtrittsöffnungen aufweisenden Flansch des Abgaskrümmers vorgesehen sein.Preferably, the flange is a cylinder flange for attachment to the cylinder head of an internal combustion engine. However, a corresponding stop disc can also be arranged at an output side, for example, two exhaust gas passage openings having provided flange of the exhaust manifold.

Weitere vorteilhafte Ausführungsformen der Erfindung sind in den abhängigen Ansprüchen angegeben.Further advantageous embodiments of the invention are specified in the dependent claims.

Die Erfindung wird nachfolgend beispielhaft anhand der Zeichnungen beschrieben. In diesen zeigt:

Fig. 1
eine Draufsicht auf ein Flanschteil mit Basiselement und Anschlagscheibe eines erfindungsgemäßen Abgaskrümmers; und
Fig. 2
eine Schnittansicht eines Teils eines erfindungsgemäßen Abgaskrümmers.
The invention will now be described by way of example with reference to the drawings. In these shows:
Fig. 1
a plan view of a flange with base element and stop disc of an exhaust manifold according to the invention; and
Fig. 2
a sectional view of a portion of an exhaust manifold according to the invention.

In Fig. 1 ist ein Flanschteil 8 für einen erfindungsgemäßen Abgaskrümmer dargestellt. Es umfasst ein Basiselement 10, das drei Abgasdurchtrittsöffnungen 12 zum Durchlass der aus der Brennkraftmaschine austretenden Abgase aufweist. Weiterhin sind acht in der Nähe des Umfangs angeordnete Befestigungsbohrungen 14 vorgesehen, durch die entsprechende Schrauben zur Befestigung an einem nicht dargestellten Zylinderkopf einer Brennkraftmaschine durchgeführt werden können.In Fig. 1 a flange 8 is shown for an exhaust manifold according to the invention. It comprises a base element 10 which has three exhaust gas passage openings 12 for the passage of the exhaust gases emerging from the internal combustion engine. Furthermore, eight arranged in the vicinity of the circumference mounting holes 14 are provided, can be performed by the corresponding screws for attachment to a cylinder head, not shown, of an internal combustion engine.

Auf dem Basiselement 10 ist eine Anschlagscheibe 16 angeordnet, die kleiner ist als das Basiselement 10, so dass sie das Basiselement 10 an keiner Stelle seitlich überragt, sondern vielmehr ein Abstand zur Außenkante des Basiselements 10 verbleibt und auch keine Befestigungsbohrung 14 überdeckt wird. Die Anschlagscheibe 16 weist ebenfalls drei Abgasdurchtrittsöffnungen 12' auf, die den gleichen Durchmesser wie die Abgasdurchtrittsöffnungen 12 des Basiselements 10 besitzen und mit diesen in einer Montagestellung fluchten.On the base member 10, a stop plate 16 is arranged, which is smaller than the base member 10, so that it projects beyond the base member 10 at any point laterally, but rather a distance to the outer edge of the base member 10 remains and no mounting hole 14 is covered. The stop disc 16 also has three exhaust gas passage openings 12 'which have the same diameter as the exhaust gas passage openings 12 of the base element 10 and are aligned with these in an assembly position.

Ungefähr mittig zwischen jeweils zwei benachbarten Abgasdurchtrittsöffnungen 12 ist eine Schraubverbindung 18 vorgesehen, durch die das Basiselement 10 und die Anschlagscheibe 16 miteinander verbunden sind.Approximately centrally between each two adjacent exhaust gas passage openings 12, a screw connection 18 is provided, through which the base member 10 and the stopper plate 16 are interconnected.

Fig. 2 zeigt ein nur abschnittsweise dargestelltes Abgasführungsteil 22, bestehend aus einer Außenschale 24 und innerhalb davon angeordneten Rohren 26, die mit dem Flanschteil 8 verbunden sind. Fig. 2 shows an exhaust duct part 22 shown only in sections, consisting of an outer shell 24 and disposed therein pipes 26, which are connected to the flange 8.

Die Anschlagscheibe 16 ist, wie bereits vorstehend erwähnt wurde, derart mit dem Basiselement 10 verbunden, dass die Abgasdurchtrittsöffnungen 12, 12' beider Teile fluchten.The stop disk 16 is, as already mentioned above, so connected to the base member 10, that the exhaust gas passage openings 12, 12 'of both parts are aligned.

Die Außenschale 24 ist vollständig über die Anschlagscheibe 16 geschoben und stößt endseitig an das Basiselement 10 an. Die Innenkontur der Außenschale 24 entspricht der Außenkontur der Anschlagscheibe 16, so dass beide in der dargestellten Montagestellung aneinander anliegen. Außenschale 24 und Anschlagscheibe 16 sind durch eine sich über den gesamten Umfang der Außenschale 24 erstreckende Laserschweißverbindung 28 miteinander verbunden.The outer shell 24 is pushed completely over the stop disk 16 and abuts the base element 10 at the end. The inner contour of the outer shell 24 corresponds to the outer contour of the stop plate 16, so that both abut each other in the illustrated mounting position. Outer shell 24 and stop disk 16 are connected to each other by a over the entire circumference of the outer shell 24 extending laser weld joint 28.

Die Endabschnitte der Rohre 26 erstrecken sich durch beide Abgasdurchtrittsöffnungen 12, 12' hindurch, so dass auf der der Anschlagscheibe 16 abgewandten Seite des Flanschteils 8 ein Überstand 30 ausgebildet ist. Die Rohre 26 sind im Bereich des Überstands 30 durch eine sich über den Umfang der Abgasdurchtrittsöffnung 12 erstreckende Laserschweißverbindung 28' am Basiselement 10 befestigt. Die durchgehende Laserschweißverbindung 28' verhindert den Eintritt von Abgasen in einen Luftspalt 32 zwischen den Rohren 26 und der Außenschale 24.The end sections of the tubes 26 extend through both exhaust gas passage openings 12, 12 ', so that a projection 30 is formed on the side of the flange section 8 facing away from the stop plate 16. The tubes 26 are fastened to the base element 10 in the region of the projection 30 by a laser welding connection 28 'extending over the circumference of the exhaust gas passage opening 12. The continuous laser weld joint 28 'prevents the entry of exhaust gases into an air gap 32 between the tubes 26 and the outer shell 24.

Es ist anzumerken, dass die Zeichnungen nicht maßstabsgerecht ausgeführt sind. Beispielhaft kann das Basiselement 10 eine Dicke von 6 mm und die Anschlagscheibe 16 eine Dicke von 2 mm aufweisen.It should be noted that the drawings are not drawn to scale. By way of example, the base element 10 may have a thickness of 6 mm and the stop disk 16 a thickness of 2 mm.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

88th
Flanschteilflange
1010
Basiselementbase element
12, 12'12, 12 '
AbgasdurchtrittsöffnungExhaust passage opening
1414
Befestigungsbohrungmounting hole
1616
Anschlagscheibestop disc
1818
Schraubverbindungscrew
2020
Abgaskrümmerexhaust manifold
2222
AbgasführungsteilExhaust system part
2424
Außenschaleouter shell
2626
Rohrpipe
28, 28'28, 28 '
LaserschweißverbindungLaser welded joint
3030
ÜberstandGot over
3232
Luftspaltair gap

Claims (11)

  1. An exhaust manifold (20) for an exhaust gas system of an internal combustion engine, comprising a flange part (8) having a plurality of exhaust gas passage openings (12) and an exhaust gas conducting part (22) that is fixedly connected to the flange part (8) and that has an outer shell (24) and pipes (26) arranged within it,
    wherein the flange part (8) has a base element (10) having the exhaust gas passage openings (12) and, as an abutment for the exhaust gas conducting part (22), an abutment plate (16) fastened to a flat side of the base element (10) facing the exhaust gas conducting part (22); wherein a contour of the abutment plate (16) at least sectionally corresponds to the contour of the exhaust gas conducting part (22) in the region of its connection to the flange part (8); and wherein the abutment plate is formed in one part and the outer shell of the exhaust gas conducting part (22) surrounds each of the two or more exhaust gas passage openings (12).
  2. An exhaust manifold in accordance with claim 1,
    characterized in that
    the abutment plate (16) has one or more exhaust gas passage openings (12') which cover the exhaust gas passage openings (12) of the base element (10).
  3. An exhaust manifold in accordance with claim 1 or claim 2, characterized in that
    the abutment plate (16) is screwed to the base element (10).
  4. An exhaust manifold in accordance with claim 1 or claim 2, characterized in that
    the abutment plate (16) is welded to the base element (10).
  5. An exhaust manifold in accordance with any one of the preceding claims,
    characterized in that
    the abutment plate (16) is a stamped part.
  6. An exhaust manifold in accordance with any one of the preceding claims,
    characterized in that
    the base element (10) is a stamped part.
  7. An exhaust manifold in accordance with any one of the preceding claims,
    characterized in that
    the base element (10) is a fin flange composed of a plurality of finshaped plates arranged in parallel.
  8. An exhaust manifold in accordance with any one of the claims 1 to 7,
    characterized in that
    the exhaust manifold (20) is an air-gap insulated manifold having an inner part (26) and an outer part (24) spaced apart therefrom by an air gap (32).
  9. An exhaust manifold in accordance with any one of the preceding claims,
    characterized in that
    the exhaust gas conducting part (22) is connected to the base element (10) and/or to the abutment plate (16) by a weld connection or solder connection, in particular by a laser weld connection (28, 28').
  10. An exhaust manifold in accordance with any one of the preceding claims,
    characterized in that
    the flange part (8) is a cylinder flange for fastening to the cylinder head of an internal combustion engine.
  11. An exhaust manifold in accordance with any one of the preceding claims,
    characterized in that
    the exhaust manifold (20) is connected to a downstream exhaustgas turbocharger.
EP07008323.3A 2006-09-27 2007-04-24 Exhaust manifold Active EP1905974B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202006014855U DE202006014855U1 (en) 2006-09-27 2006-09-27 Exhaust gas manifold for internal combustion engine has flange part with base elements and stop washer as stop for exhaust gas guide part

Publications (4)

Publication Number Publication Date
EP1905974A2 EP1905974A2 (en) 2008-04-02
EP1905974A3 EP1905974A3 (en) 2009-04-22
EP1905974B1 EP1905974B1 (en) 2011-02-23
EP1905974B2 true EP1905974B2 (en) 2017-03-22

Family

ID=37545533

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07008323.3A Active EP1905974B2 (en) 2006-09-27 2007-04-24 Exhaust manifold

Country Status (3)

Country Link
EP (1) EP1905974B2 (en)
AT (1) ATE499514T1 (en)
DE (2) DE202006014855U1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103470888B (en) * 2013-09-12 2016-02-03 重庆长安汽车股份有限公司 Enmgine exhaust and flange

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4197704A (en) * 1976-06-11 1980-04-15 Honda Giken Kogyo Kabushiki Kaisha Exhaust manifold for internal combustion engine
DE8914153U1 (en) * 1989-12-01 1990-02-15 Audi AG, 8070 Ingolstadt Device for supplying secondary air to the exhaust gases
DE20101644U1 (en) * 2001-01-29 2002-06-06 Härle, Hans A., 73441 Bopfingen exhaust manifold
JP4394851B2 (en) * 2001-07-11 2010-01-06 本田技研工業株式会社 Engine oxygen concentration sensor mounting structure

Also Published As

Publication number Publication date
DE202006014855U1 (en) 2006-11-30
DE502007006533D1 (en) 2011-04-07
EP1905974B1 (en) 2011-02-23
EP1905974A3 (en) 2009-04-22
EP1905974A2 (en) 2008-04-02
ATE499514T1 (en) 2011-03-15

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