EP0582205A1 - Exhaust manifold - Google Patents

Exhaust manifold Download PDF

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Publication number
EP0582205A1
EP0582205A1 EP93112104A EP93112104A EP0582205A1 EP 0582205 A1 EP0582205 A1 EP 0582205A1 EP 93112104 A EP93112104 A EP 93112104A EP 93112104 A EP93112104 A EP 93112104A EP 0582205 A1 EP0582205 A1 EP 0582205A1
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EP
European Patent Office
Prior art keywords
exhaust manifold
flange
hood
manifold according
inner tube
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.)
Granted
Application number
EP93112104A
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German (de)
French (fr)
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EP0582205B1 (en
Inventor
Klaus Krüger
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.)
ERHARDT BISCHOFF GMBH & CO KG
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Erhardt Bischoff & Co KG GmbH
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Publication of EP0582205A1 publication Critical patent/EP0582205A1/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
    • F01N13/14—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
    • 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
    • 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
    • F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
    • F01N2450/24—Methods or apparatus for fitting, inserting or repairing different elements by bolts, screws, rivets or the like

Definitions

  • the invention is based on an insulated exhaust manifold which is attached, for example, to a cylinder head using a flange.
  • the gas-carrying inner tube is surrounded by an outer tube which in many cases has a bearing, a distance being formed between the tubes. This distance can be filled with air or filled with an insulating material.
  • the outer tube has approximately the same shape as the inner tube and is attached to the cylinder flange at the same locations as the gas-carrying inner tube. On In this way, the outer tube must be constructed from several partial shells, which then have to be connected to one another in a relatively complicated process for forming the outer tube.
  • an inner skin consisting of two half-shells is present, which is surrounded by an insulating body consisting of two partial shells.
  • the outside is covered by an outer shell, which also consists of two parts.
  • the two half-shells of the outer shell can only be connected to one another after they have been attached to the inner skin.
  • the invention has for its object to provide an exhaust manifold that is inexpensive to manufacture and has high strength.
  • the invention proposes an exhaust manifold with the features of claim 1. Further training is the subject of the subclaims.
  • the outer tube By designing the outer tube as a hood, the number of parts required for producing the exhaust manifold is reduced, and thus the number of connection or fastening processes.
  • the hood is made in a size that can be placed over the inner tube. The shape of the hood no longer has to follow the shape of the inner tube. It can therefore be manufactured with relatively little effort. At the same time, the space between the inner tube and the hood increases, which can lead to better thermal insulation. Due to the larger surface of the hood, it can give off its heat better to the outside. This reduces the temperature load and increases the service life of the exhaust manifold.
  • the hood is designed as a one-piece sheet metal part.
  • the invention proposes in a further development that the hood is welded to the cylinder flange essentially along the edge thereof. This also leads to an increase in the strength of the exhaust manifold.
  • the hood prefferably be welded to the collecting flange essentially along its edge.
  • the cylinder flange and / or collecting flange is designed as a sheet metal plate, it also being possible, of course, to provide a plurality of sheet metal plates lying flat on one another to form the flanges.
  • the cylinder flange and the collector flange are connected directly to one another. This further increases the strength of the exhaust manifold, since it leads to a stiffening of the collecting flange.
  • the connection of the collector flange to the cylinder flange also results in thermal relief of the collector flange.
  • the cylinder flange and the collecting flange are part of a common circuit board. This board can be produced in one operation, so that no subsequent connection is required.
  • circuit board is angled, one part of the cylinder flange and the part separated by the bend forms the collecting flange.
  • the inner tube is passed through an opening of the collecting flange, insulated from the latter in particular through an air gap.
  • the inner tube can then be held in the forward tube. So there is a thermal decoupling between the gas-carrying and therefore hot inner tube and the flange and thus also the hood.
  • the inner tube can be constructed from a plurality of sections which can be connected to one another by sliding seats, the sliding seats possibly being sealed by a corrugated bellows.
  • the space between the gas-carrying inner tube and the hood can be filled with air, but it is also possible to fill it with an insulating material.
  • the part of the exhaust manifold shown in FIG. 1 contains a cylinder flange 1, which is constructed from an angled sheet metal plate 2 and a sealing plate 3 arranged on the side of the sheet metal plate 2 facing the cylinder head.
  • the sealing plate 3 can in particular consist of a different material.
  • a plurality of holes 4 passing through the circuit board 2, 3 are provided for fastening to the cylinder head.
  • a plurality of pipe parts 5a, 5b, 5c are fastened to the cylinder flange 1, which together form an inner pipe 5 carrying the exhaust gas of the engine.
  • the individual parts 5a, 5b, 5c of the inner tube 5 are connected to one another by sliding seats, so that a length compensation can take place when heated.
  • the part of the angled sheet metal plate 2 which is angled with respect to the plane of the cylinder flange 1 forms a collecting flange 6 to which a corresponding flange of the further pipeline can be screwed.
  • the collecting flange contains a central opening 7 for the passage of the inner tube 5.
  • the inner tube 5 is passed through the opening 7 in such a way that it has a radial distance from the edge of the opening 7 on all sides. So there is no touch. Even if the inner tube 5 heats up more than the angled plate 2, the distance from the edge of the opening is maintained.
  • the collecting flange 6 has threaded bores 8 in the region of its corners, into which screws for fastening the flange of the front pipe can be screwed. It is of course also possible to have 6 nuts in the area of the bores on the inside of the collecting flange visible in FIG. 1 8 welded, which then have the thread for the screws. It is also possible to weld bolts in the form of studs or combinations of both.
  • a hood 9 shown in the correct position in FIG. 2 is placed on the part of the exhaust manifold shown in FIG. 1.
  • the hood 9 is produced as a one-piece sheet metal part by pulling and has an opening directed downward in FIG. 2.
  • the edge of the sheet metal part 9 delimiting the opening corresponds approximately to the shape and dimensions of the angled sheet metal plate 2.
  • the indentations 11 provide access to the screws with which the exhaust manifold is screwed onto the cylinder head.
  • the hood 9 is placed on the angled sheet metal plate 2 and welded along the edge of the two angled parts both to the cylinder flange 1 and to the collecting flange 6. This results in a very stable arrangement of the circuit board 2 and the hood 9 with a simple construction. This arrangement is shown in FIG. 3. It can be seen that the indentations 11 allow access to the holes 4. The edge of the hood 9 lies flat on the top of the sheet metal plate 2 and can be welded there.
  • the end region 12 of the gas-carrying inner tube 5 protruding through the collecting flange 6 can then be plugged into a front tube and, if necessary, form a sliding fit there with a further tube part.
  • the one-piece connection of the collecting flange 6 with the cylinder flange 1 not only results in a stiffening of the exhaust manifold, but also a thermal relief of the collecting flange. This is further reinforced by the annular gap between the gas-carrying inner tube 5 and the edge of the opening 7 of the collecting flange 6.

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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)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)

Abstract

An exhaust manifold contains a cylinder flange (1) intended for fixing on a cylinder head and a combined flange (6) directly connected to the cylinder flange (1). The connection can be made in particular by the use of a common, angled plate. The gas-carrying inner pipe (5) is covered by a hood (9), formed as a one-piece drawn part, which is welded to the plate (2). <IMAGE>

Description

Die Erfindung geht aus von einem isolierten Abgaskrümmer, der beispielsweise an einem Zylinderkopf mit Hilfe eines Flansches angebracht wird.The invention is based on an insulated exhaust manifold which is attached, for example, to a cylinder head using a flange.

Bei den bisher bekannten Abgaskrümmern dieser Art ist das gasführende Innenrohr von einem in vielen Fällen tragenden Außenrohr umgeben, wobei zwischen den Rohren ein Abstand gebildet ist. Dieser Abstand kann luftgefüllt oder mit einem Isoliermaterial gefüllt sein. Bei den bekannten Abgaskrümmern dieser Art weist das äußere Rohr etwa die gleiche Form wie das Innenrohr auf und ist an dem Zylinderflansch an den gleichen Stellen befestigt wie das gasführende Innenrohr. Auf diese Weise muß das Außenrohr aus mehreren Teilschalen aufgebaut sein, die dann in einem relativ komplizierten Verfahren zur Bildung des Außenrohres miteinander verbunden werden müssen.In the previously known exhaust manifolds of this type, the gas-carrying inner tube is surrounded by an outer tube which in many cases has a bearing, a distance being formed between the tubes. This distance can be filled with air or filled with an insulating material. In the known exhaust manifolds of this type, the outer tube has approximately the same shape as the inner tube and is attached to the cylinder flange at the same locations as the gas-carrying inner tube. On In this way, the outer tube must be constructed from several partial shells, which then have to be connected to one another in a relatively complicated process for forming the outer tube.

Bei einem bekannten abgasführenden Bauteil (DE-A1-33 33 591) ist eine aus zwei Halbschalen bestehende Innenhaut vorhanden, die von einem aus zwei Teilschalen bestehenden Isolierkörper umgeben ist. Nach außen abgedeckt ist das Ganze durch eine Außenschale, die ebenfalls aus zwei Teilen besteht. Die beiden Halbschalen der Außenschale können erst nach Anbringung an der Innenhaut miteinander verbunden werden.In a known exhaust gas-carrying component (DE-A1-33 33 591), an inner skin consisting of two half-shells is present, which is surrounded by an insulating body consisting of two partial shells. The outside is covered by an outer shell, which also consists of two parts. The two half-shells of the outer shell can only be connected to one another after they have been attached to the inner skin.

Der Erfindung liegt die Aufgabe zugrunde, einen Abgaskrümmer zu schaffen, der sich kostengünstig herstellen läßt und eine hohe Festigkeit aufweist.The invention has for its object to provide an exhaust manifold that is inexpensive to manufacture and has high strength.

Zur Lösung dieser Aufgabe schlägt die Erfindung einen Abgaskrümmer mit den Merkmalen des Anspruchs 1 vor. Weiterbildungen sind Gegenstand der Unteransprüche.To achieve this object, the invention proposes an exhaust manifold with the features of claim 1. Further training is the subject of the subclaims.

Durch Ausbildung des äußeren Rohrs als Haube verringert sich die Anzahl der zur Herstellung des Abgaskrümmers nötigen Teile und damit die Zahl der Verbindungs- bzw. Befestigungsvorgänge. Die Haube wird in einer Größe hergestellt, daß sie über das Innenrohr aufgesetzt werden kann. Die Form der Haube braucht nicht mehr der Form des Innenrohres zu folgen. Sie kann daher mit relativ geringem Aufwand hergestellt werden. Gleichzeitig vergrößert sich der Zwischenraum zwischen dem Innenrohr und der Haube, was zu einer besseren thermischen Isolierung führen kann. Aufgrund der größeren Oberfläche der haube kann diese ihre Wärme nach außen besser abgeben. Dadurch verringert sich die Temperaturbelastung und erhöht sich die Lebensdauer des Abgaskrümmers.By designing the outer tube as a hood, the number of parts required for producing the exhaust manifold is reduced, and thus the number of connection or fastening processes. The hood is made in a size that can be placed over the inner tube. The shape of the hood no longer has to follow the shape of the inner tube. It can therefore be manufactured with relatively little effort. At the same time, the space between the inner tube and the hood increases, which can lead to better thermal insulation. Due to the larger surface of the hood, it can give off its heat better to the outside. This reduces the temperature load and increases the service life of the exhaust manifold.

Insbesondere kann in Weiterbildung vorgesehen sein, daß die Haube als ein einstückiges Blechziehteil ausgebildet ist.In particular, it can be provided in a further development that the hood is designed as a one-piece sheet metal part.

Die Erfindung schlägt in Weiterbildung vor, daß die Haube im wesentlichen längs des Randes des Zylinderflansches mit diesem verschweißt wird. Auch dies führt zur Vergrößerung der Festigkeit des Abgaskrümmers.The invention proposes in a further development that the hood is welded to the cylinder flange essentially along the edge thereof. This also leads to an increase in the strength of the exhaust manifold.

Es ist ebenfalls möglich, daß die Haube mit dem Sammelflansch im wesentlichen längs dessen Randes verschweißt wird.It is also possible for the hood to be welded to the collecting flange essentially along its edge.

Erfindungsgemäß kann vorgesehen sein, daß der Zylinderflansch und/oder Sammelflansch als Blechplatine ausgebildet ist, wobei selbstverständlich auch mehrere flächig aufeinander aufliegende Blechplatinen zur Bildung der Flansche vorgesehen sein können.According to the invention it can be provided that the cylinder flange and / or collecting flange is designed as a sheet metal plate, it also being possible, of course, to provide a plurality of sheet metal plates lying flat on one another to form the flanges.

Erfindungsgemäß kann in Weiterbildung vorgesehen sein, daß der Zylinderflansch und der Sammelflansch direkt miteinander verbunden werden. Dies erhöht weiter die Festigkeit des Abgaskrümmers, da es zu einer Versteifung des Sammelflansches führt. Durch die Verbindung des Sammelflansches mit dem Zylinderflansch ergibt sich aber auch eine thermische Entlastung des Sammelflansches.According to the invention, it can be provided in a further development that the cylinder flange and the collector flange are connected directly to one another. This further increases the strength of the exhaust manifold, since it leads to a stiffening of the collecting flange. The connection of the collector flange to the cylinder flange also results in thermal relief of the collector flange.

In nochmaliger Weiterbildung kann vorgesehen sein, daß der Zylinderflansch und der Sammelflansch Teil einer gemeinsamen Platine sind. Diese Platine kann in einem Arbeitsgang hergestellt werden, so daß keine nachträgliche Verbindung mehr erforderlich ist.In a further development it can be provided that the cylinder flange and the collecting flange are part of a common circuit board. This board can be produced in one operation, so that no subsequent connection is required.

Es kann erfindungsgemäß vorgesehen sein, daß die Platine abgewinkelt verläuft, wobei der eine Teil den Zylinderflansch und der durch die Abwinkelung getrennte Teil den Sammelflansch bildet.It can be provided according to the invention that the circuit board is angled, one part of the cylinder flange and the part separated by the bend forms the collecting flange.

Insbesondere kann vorgesehen sein, daß das Innenrohr durch eine Öffnung des Sammelflansches von diesem insbesondere durch einen Luftspalt isoliert hindurchgeführt ist. Das Innenrohr kann dann in dem weiterführenden Vorrohr gehaltert sein. Es erfolgt also eine thermische Entkopplung zwischen dem gasführenden und daher heißen Innenrohr und dem Flansch und damit auch der Haube.In particular, it can be provided that the inner tube is passed through an opening of the collecting flange, insulated from the latter in particular through an air gap. The inner tube can then be held in the forward tube. So there is a thermal decoupling between the gas-carrying and therefore hot inner tube and the flange and thus also the hood.

Das Innenrohr kann aus mehreren Teilstücken aufgebaut sein, die durch Schiebesitze miteinander verbunden sein können, wobei die Schiebesitze ggf. durch einen Wellbalg abgedichtet sein können.The inner tube can be constructed from a plurality of sections which can be connected to one another by sliding seats, the sliding seats possibly being sealed by a corrugated bellows.

Der Zwischenraum zwischen dem gasführenden Innenrohr und der Haube kann luftgefüllt sein, es ist jedoch auch möglich, ihn mit einem isolierenden Material auszufüllen.The space between the gas-carrying inner tube and the hood can be filled with air, but it is also possible to fill it with an insulating material.

Weitere Merkmale, Einzelheiten und Vorzüge der Erfindung ergeben sich der folgenden Beschreibung einer bevorzugten Ausführungsform der Erfindung sowie anhand der Zeichnung. Hierbei zeigen:

Fig. 1
eine perspektivische Ansicht eines Teils des Abgaskrümmers nach der Erfindung;
Fig. 2
perspektivisch eine auf den in Fig. 1 dargestellten Teil des Abgaskrümmers aufzusetzende Haube;
Fig. 3
den fertiggestellten Abgaskrümmer.
Further features, details and advantages of the invention will become apparent from the following description of a preferred embodiment of the invention and from the drawing. Here show:
Fig. 1
a perspective view of part of the exhaust manifold according to the invention;
Fig. 2
in perspective a hood to be placed on the part of the exhaust manifold shown in FIG. 1;
Fig. 3
the finished exhaust manifold.

Der in Fig. 1 dargestellte Teil des Abgaskrümmers enthält einen Zylinderflansch 1, der aus einer abgewinkelten Blechplatine 2 und einer auf der dem Zylinderkopf zugewandten Seite der Blechplatine 2 angeordneten Dichtplatine 3 aufgebaut ist. Die Dichtplatine 3 kann insbesondere aus anderem Material bestehen. Zur Befestigung an dem Zylinderkopf sind mehrere durch die Platine 2, 3 hindurchgehende Löcher 4 vorgesehen. An dem Zylinderflansch 1 sind mehrere Rohrteile 5a, 5b, 5c befestigt, die zusammen ein das Abgas des Motors führendes Innenrohr 5 bilden. Die einzelnen Teile 5a, 5b, 5c des Innenrohrs 5 sind durch Schiebesitze miteinander verbunden, so daß bei Erwärmung ein Längenausgleich erfolgen kann.The part of the exhaust manifold shown in FIG. 1 contains a cylinder flange 1, which is constructed from an angled sheet metal plate 2 and a sealing plate 3 arranged on the side of the sheet metal plate 2 facing the cylinder head. The sealing plate 3 can in particular consist of a different material. A plurality of holes 4 passing through the circuit board 2, 3 are provided for fastening to the cylinder head. A plurality of pipe parts 5a, 5b, 5c are fastened to the cylinder flange 1, which together form an inner pipe 5 carrying the exhaust gas of the engine. The individual parts 5a, 5b, 5c of the inner tube 5 are connected to one another by sliding seats, so that a length compensation can take place when heated.

Der gegenüber der Ebene des Zylinderflansches 1 abgewinkelte Teil der abgewinkelten Blechplatine 2 bildet einen Sammelflansch 6, an dem ein entsprechender Flansch der weiterführenden Rohrleitung angeschraubt werden kann. Der Sammelflansch enthält eine zentrale Öffnung 7 zum Durchführen des Innenrohres 5. Das Innenrohr 5 ist derart durch die Öffnung 7 hindurchgeführt, daß es allseits einen radialen Abstand von dem Rand der Öffnung 7 aufweist. Es tritt also keine Berührung auf. Selbst dann, wenn das Innenrohr 5 sich stärker erwärmt als die abgewinkelte Platine 2, bleibt der Abstand vom Rand der Öffnung erhalten.The part of the angled sheet metal plate 2 which is angled with respect to the plane of the cylinder flange 1 forms a collecting flange 6 to which a corresponding flange of the further pipeline can be screwed. The collecting flange contains a central opening 7 for the passage of the inner tube 5. The inner tube 5 is passed through the opening 7 in such a way that it has a radial distance from the edge of the opening 7 on all sides. So there is no touch. Even if the inner tube 5 heats up more than the angled plate 2, the distance from the edge of the opening is maintained.

Es ist selbstverständlich auch möglich, das Innenrohr mit dem Sammelflansch zu verschweißen, wenn dieser an dieser Stelle nicht thermisch abgekoppelt zu werden braucht.It is of course also possible to weld the inner tube to the collecting flange if it does not need to be thermally decoupled at this point.

Der Sammelflansch 6 weist im Bereich seiner Ecken Gewindebohrungen 8 auf, in die Schrauben zum Befestigen des Flansches des Vorrohrs eingeschraubt werden können. Es ist selbstverständlich auch möglich, auf der in Fig. 1 sichtbaren Innenseite des Sammelflansches 6 Muttern im Bereich der Bohrungen 8 anzuschweißen, die dann das Gewinde für die Schrauben aufweisen. Ebenso ist es möglich, Schrauben in Form von Stehbolzen anzuschweißen oder auch Kombinationen beider Möglichkeiten.The collecting flange 6 has threaded bores 8 in the region of its corners, into which screws for fastening the flange of the front pipe can be screwed. It is of course also possible to have 6 nuts in the area of the bores on the inside of the collecting flange visible in FIG. 1 8 welded, which then have the thread for the screws. It is also possible to weld bolts in the form of studs or combinations of both.

Auf den in Fig. 1 dargestellten Teil des Abgaskrümmers wird eine in Fig. 2 lagerichtig dargestellte Haube 9 aufgesetzt. Die Haube 9 ist als einstückiges Blechteil durch Ziehen hergestellt und weist eine in Fig. 2 nach unten gerichtete Öffnung auf. Der die Öffnung begrenzende Rand des Blechteils 9 entspricht etwa der Form und den Abmessungen der abgewinkelten Blechplatine 2. In den zueinander parallelen Seitenwänden 10 der Haube 9 sind drei Einbuchtungen 11 eingeformt, die in axialer Verlängerung der Löcher 4 liegen. Durch die Einbuchtungen 11 ist der Zugang zu den Schrauben möglich, mit denen der Abgaskrümmer an dem Zylinderkopf festgeschraubt wird.A hood 9 shown in the correct position in FIG. 2 is placed on the part of the exhaust manifold shown in FIG. 1. The hood 9 is produced as a one-piece sheet metal part by pulling and has an opening directed downward in FIG. 2. The edge of the sheet metal part 9 delimiting the opening corresponds approximately to the shape and dimensions of the angled sheet metal plate 2. The indentations 11 provide access to the screws with which the exhaust manifold is screwed onto the cylinder head.

Die Haube 9 wird auf die abgewinkelte Blechplatine 2 aufgesetzt und längs des Randes der beiden abgewinkelten Teile sowohl mit dem Zylinderflansch 1 als auch mit dem Sammelflansch 6 verschweißt. Dadurch ergibt sich bei einfachem Aufbau eine sehr stabile Anordnung aus der Platine 2 und der Haube 9. Diese Anordnung ist in Fig. 3 dargestellt. Es ist zu sehen, daß die Einbuchtungen 11 den Zugang zu den Löchern 4 ermöglichen. Die Haube 9 liegt mit ihrem Rand flächig auf der Oberseite der Blechplatine 2 auf und kann dort festgeschweißt werden.The hood 9 is placed on the angled sheet metal plate 2 and welded along the edge of the two angled parts both to the cylinder flange 1 and to the collecting flange 6. This results in a very stable arrangement of the circuit board 2 and the hood 9 with a simple construction. This arrangement is shown in FIG. 3. It can be seen that the indentations 11 allow access to the holes 4. The edge of the hood 9 lies flat on the top of the sheet metal plate 2 and can be welded there.

Der durch den Sammelflansch 6 hindurchragende Endbereich 12 des gasführenden Innenrohres 5 kann dann in ein Vorrohr hineingesteckt werden und dort ggf. mit einem weiterführenden Rohrteil einen Schiebesitz bilden.The end region 12 of the gas-carrying inner tube 5 protruding through the collecting flange 6 can then be plugged into a front tube and, if necessary, form a sliding fit there with a further tube part.

Durch die einstückige Verbindung des Sammelflansches 6 mit dem Zylinderflansch 1 ergibt sich nicht nur eine Versteifung des Abgaskrümmers, sonder auch eine thermische Entlastung des Sammelflansches. Diese wird durch den Ringspalt zwischen dem gasführenden Innenrohr 5 und dem Rand der Öffnung 7 des Sammelflansches 6 weiter verstärkt.The one-piece connection of the collecting flange 6 with the cylinder flange 1 not only results in a stiffening of the exhaust manifold, but also a thermal relief of the collecting flange. This is further reinforced by the annular gap between the gas-carrying inner tube 5 and the edge of the opening 7 of the collecting flange 6.

Es wird zum ersten Mal möglich, mit der als Ziehteil ausgebildeten Haube und der ebenfalls einstückigen Platine 2 das ganze System gasdicht zu verschließen, wobei die gasdichte Verbindung des Innenrohrs 5 mit dem weiterführenden Vorrohr innerhalb des Vorrohrs erfüllt. Es ist selbstverständlich auch möglich, das gasführende Innenrohr über einen Wellbalg oder einen Schiebesitz mit dem Sammelflansch 6 zu verbinden.It becomes possible for the first time to seal the entire system in a gas-tight manner with the hood designed as a drawn part and the also one-piece circuit board 2, the gas-tight connection of the inner tube 5 with the outgoing forward tube within the forward tube being fulfilled. It is of course also possible to connect the gas-carrying inner tube to the collecting flange 6 via a corrugated bellows or a sliding seat.

Claims (12)

Abgaskrümmer, mit 1.1 einem Zylinderflansch (1) zum Anbringen des Abgaskrümmers an einem Zylinderkopf, 1.2 einem Sammelflansch (6) zum Anschließen eines weiterführenden Rohres, 1.3 einem gasführenden Innenrohr (5) sowie 1.4 einer Haube, die 1.4.1 das Innenrohr (5) allseits umgibt, 1.4.2 von diesem einen Abstand zur Bildung eines Zwischenraumes aufweist, 1.4.3 als Blechziehteil ausgebildet ist, 1.4.4 mit dem Zylinderflansch (1) verbunden, insbesondere verschweißt ist, und 1.4.5 mit dem Sammelflansch (6) verbunden, insbesondere verschweißt ist. Exhaust manifold, with 1.1 a cylinder flange (1) for attaching the exhaust manifold to a cylinder head, 1.2 a collecting flange (6) for connecting a further pipe, 1.3 a gas-carrying inner tube (5) and 1.4 a hood that 1.4.1 surrounds the inner tube (5) on all sides, 1.4.2 is at a distance from it to form a space, 1.4.3 is designed as a sheet metal part, 1.4.4 connected to the cylinder flange (1), in particular welded, and 1.4.5 connected to the collecting flange (6), in particular welded. Abgaskrümmer nach Anspruch 1, bei dem die Haube (9) als einstückiges Blechziehteil ausgebildet ist.Exhaust manifold according to claim 1, wherein the hood (9) is designed as a one-piece sheet metal part. Abgaskrümmer nach Anspruch 1 oder 2, bei dem die Haube (9) im wesentlichen längs des Randes des Zylinderflansches (1) mit diesem verschweißt ist.Exhaust manifold according to Claim 1 or 2, in which the hood (9) is welded to the cylinder flange (1) substantially along the edge thereof. Abgaskrümmer nach einem der vorhergehenden Ansprüche, bei dem die Haube (9) im wesentlichen längs des Randes des Sammelflansches (6) mit diesem verschweißt ist.Exhaust manifold according to one of the preceding claims, in which the hood (9) is welded to the collecting flange (6) substantially along the edge of the latter. Abgaskrümmer nach einem der vorhergehenden Ansprüche, bei dem der Zylinderflansch (1) und/oder der Sammelflansch (6) als Blechplatine ausgebildet ist.Exhaust manifold according to one of the preceding claims, in which the cylinder flange (1) and / or the collecting flange (6) is designed as a sheet metal plate. Abgaskrümmer nach einem der vorhergehenden Ansprüche, bei dem der Zylinderflansch (1) und der Sammelflansch (6) direkt miteinander verbunden sind.Exhaust manifold according to one of the preceding claims, in which the cylinder flange (1) and the collecting flange (6) are connected directly to one another. Abgaskrümmer nach einem der vorhergehenden Ansprüche, bei dem der Zylinderflansch (1) und der Sammelflansch (6) Teil einer gemeinsamen Platine (2) sind.Exhaust manifold according to one of the preceding claims, in which the cylinder flange (1) and the collecting flange (6) are part of a common circuit board (2). Abgaskrümmer nach Anspruch 7, bei dem die Platine (2) abgewinkelt verläuft.Exhaust manifold according to claim 7, wherein the circuit board (2) is angled. Abgaskrümmer nach einem der vorhergehenden Ansprüche, bei dem das Innenrohr (5) durch eine Öffnung (7) des Sammelflansches (6) von diesem insbesondere durch einen Luftspalt isoliert hindurchgeführt ist.Exhaust manifold according to one of the preceding claims, wherein the inner tube (5) through an opening (7) of the Collective flange (6) is passed through it in an isolated manner, in particular through an air gap. Abgaskrümmer nach einem der vorhergehenden Ansprüche, bei dem das Innenrohr (5) mindestens einen Schiebesitz aufweist.Exhaust manifold according to one of the preceding claims, wherein the inner tube (5) has at least one sliding seat. Abgaskrümmer nach Anspruch 10, bei dem der Schiebesitz durch einen Wellbalg abgedichtet ist.Exhaust manifold according to claim 10, wherein the sliding seat is sealed by a corrugated bellows. Abgaskrümmer nach einem der vorhergehenden Ansprüche, bei dem der Zwischenraum zwischen dem Innenrohr (5) und der Haube (9) mit Isoliermaterial gefüllt ist.Exhaust manifold according to one of the preceding claims, wherein the space between the inner tube (5) and the hood (9) is filled with insulating material.
EP93112104A 1992-08-07 1993-07-29 Exhaust manifold Expired - Lifetime EP0582205B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4226171A DE4226171A1 (en) 1992-08-07 1992-08-07 Exhaust manifold
DE4226171 1992-08-07

Publications (2)

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EP0582205A1 true EP0582205A1 (en) 1994-02-09
EP0582205B1 EP0582205B1 (en) 1996-04-10

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ID=6465081

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EP93112104A Expired - Lifetime EP0582205B1 (en) 1992-08-07 1993-07-29 Exhaust manifold

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EP (1) EP0582205B1 (en)
AT (1) ATE136623T1 (en)
DE (2) DE4226171A1 (en)
ES (1) ES2086158T3 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1329607A3 (en) * 2002-01-10 2005-11-16 Benteler Automobiltechnik GmbH & Co. KG Apparatus to guide exhaust gas from an internal combustion engine
CN104595000A (en) * 2015-01-04 2015-05-06 无锡市佳宜车厢制造有限公司 Exhaust heat shield applied to diesel engine and production process thereof
GB2571270A (en) * 2018-02-21 2019-08-28 Jaguar Land Rover Ltd Exhaust manifold assembly

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19507439A1 (en) * 1995-03-03 1996-09-05 Bischoff Erhardt Gmbh Co Kg Exhaust manifold
DE10230015A1 (en) * 2002-07-04 2004-01-22 Bayerische Motoren Werke Ag Exhaust gas manifold has gas-carrying pipes fabricated from sheet metal and with second fastening element connected to first fastening element by connecting element, forming frame encased on at least two sides by air guiding duct
FR2916800A1 (en) * 2007-05-30 2008-12-05 Faurecia Sys Echappement DEVICE FOR INSULATING AN EXHAUST MANIFOLD
DE102007062660A1 (en) 2007-12-24 2009-06-25 J. Eberspächer GmbH & Co. KG exhaust manifold
FR2930288B1 (en) * 2008-04-16 2010-06-04 Faurecia Sys Echappement EXHAUST LINE COLLECTOR ASSEMBLY COMPRISING A COLLECTOR AND A HOUSING.
DE102008063744A1 (en) 2008-12-18 2010-07-08 Friedrich Boysen Gmbh & Co. Kg Einwandkrümmer
JP7086884B2 (en) * 2019-03-27 2022-06-20 株式会社クボタ Work vehicle

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DE2033434A1 (en) * 1970-01-02 1971-07-08 Arvin Industries Ine, Columbus, Ind (V St A) Exhaust collector
FR2549529A1 (en) * 1983-07-21 1985-01-25 Witzenmann Metallschlauchfab Vehicle IC engine exhaust manifold
DE3333591A1 (en) * 1983-09-16 1985-03-28 Daimler-Benz Ag, 7000 Stuttgart Exhaust-carrying component

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DE2744964A1 (en) * 1977-10-06 1979-04-19 Kloeckner Humboldt Deutz Ag EXHAUST GAS PIPE SYSTEM FOR MULTICYLINDRICAL PISTON ENGINE
DE3326259A1 (en) * 1983-07-21 1985-02-07 Witzenmann GmbH, Metallschlauch-Fabrik Pforzheim, 7530 Pforzheim Exhaust pipe

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Publication number Priority date Publication date Assignee Title
DE2033434A1 (en) * 1970-01-02 1971-07-08 Arvin Industries Ine, Columbus, Ind (V St A) Exhaust collector
FR2549529A1 (en) * 1983-07-21 1985-01-25 Witzenmann Metallschlauchfab Vehicle IC engine exhaust manifold
DE3333591A1 (en) * 1983-09-16 1985-03-28 Daimler-Benz Ag, 7000 Stuttgart Exhaust-carrying component

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1329607A3 (en) * 2002-01-10 2005-11-16 Benteler Automobiltechnik GmbH & Co. KG Apparatus to guide exhaust gas from an internal combustion engine
CN104595000A (en) * 2015-01-04 2015-05-06 无锡市佳宜车厢制造有限公司 Exhaust heat shield applied to diesel engine and production process thereof
GB2571270A (en) * 2018-02-21 2019-08-28 Jaguar Land Rover Ltd Exhaust manifold assembly

Also Published As

Publication number Publication date
DE4226171A1 (en) 1994-02-10
ATE136623T1 (en) 1996-04-15
ES2086158T3 (en) 1996-06-16
EP0582205B1 (en) 1996-04-10
DE59302160D1 (en) 1996-05-15

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