EP0178430B1 - Exhaust manifold - Google Patents

Exhaust manifold Download PDF

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Publication number
EP0178430B1
EP0178430B1 EP85110556A EP85110556A EP0178430B1 EP 0178430 B1 EP0178430 B1 EP 0178430B1 EP 85110556 A EP85110556 A EP 85110556A EP 85110556 A EP85110556 A EP 85110556A EP 0178430 B1 EP0178430 B1 EP 0178430B1
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EP
European Patent Office
Prior art keywords
exhaust
flange
exhaust manifold
pipe socket
welded
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
Application number
EP85110556A
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German (de)
French (fr)
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EP0178430A1 (en
Inventor
Rudolf Loup
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 & Co KG Fabrik fur Kraftfahrzeugteile GmbH
Original Assignee
Erhardt Bischoff & Co KG Fabrik fur Kraftfahrzeugteile GmbH
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Application filed by Erhardt Bischoff & Co KG Fabrik fur Kraftfahrzeugteile GmbH filed Critical Erhardt Bischoff & Co KG Fabrik fur Kraftfahrzeugteile GmbH
Priority to AT85110556T priority Critical patent/ATE34805T1/en
Publication of EP0178430A1 publication Critical patent/EP0178430A1/en
Application granted granted Critical
Publication of EP0178430B1 publication Critical patent/EP0178430B1/en
Expired legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00Exhaust 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
    • F01N13/18Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1805Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00Exhaust 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
    • F01N13/08Other arrangements or adaptations of exhaust conduits
    • F01N13/10Other arrangements or adaptations of exhaust conduits of exhaust manifolds

Definitions

  • the invention relates to an exhaust manifold with a flange for its attachment to an engine block and with exhaust pipes leading away from the flange.
  • Exhaust manifolds of this type are currently usually produced as castings (US-A 2847819).
  • the flange with the help of which the exhaust manifold is screwed onto the engine block, poses the greatest problems, since the flange must be screwed onto the engine block in a gas-tight manner.
  • the requirements of modern engine construction prescribe certain flange shapes and thicknesses, which mean a high financial outlay when manufactured using cast iron.
  • the castings require post-processing, which is expensive, particularly in the case of complicated shapes.
  • the invention has for its object to develop an exhaust manifold of the type mentioned in such a way that it can be produced with considerable cost savings and still enables the most complicated flange shapes.
  • the invention proposes an exhaust manifold in which the flange is constructed in a lamella-like manner from at least two boards which are welded or soldered to one another and which have an exhaust opening for each exhaust pipe, in the area of which a pipe socket is welded or soldered to the flange.
  • the boards are extremely easy to manufacture as stamped parts, and the most complicated shapes are possible. Due to the structure of several boards, any desired thickness and strength can be achieved, and post-processing, if such is still necessary, is extremely simple.
  • the pipe socket which is present in the area of the exhaust openings, makes it possible to also manufacture the actual exhaust pipes from pipe material and to weld them to the pipe socket. This in turn makes it possible to make the exhaust pipes themselves thinner than was possible with cast material.
  • the thinner, yet firm and stable exhaust pipes have the advantage of lower heat capacity, which is particularly advantageous in connection with the catalytic converters. These have to have a certain minimum temperature in order to work correctly, the measures of the invention ensuring that not too much heat is absorbed by the catalytic converters through the exhaust pipes in the cold start phase.
  • the invention further proposes that the boards are resistance welded or hump welded together.
  • the inner circuit boards can have one or more welding pins which project in the direction of the outer circuit boards and therefore form the contact point in the case of electrical resistance welding.
  • the inner circuit boards can have one or more welding pins which project in the direction of the outer circuit boards and therefore form the contact point in the case of electrical resistance welding.
  • the boards are soldered to one another, they can be soldered under protective gas, using pure copper as the solder. However, it is particularly favorable if the soldering takes place in a vacuum oven. This is possible due to the design of the flange with a pipe socket, since the exhaust pipes are not yet available at this stage and the space required for the flange in the vacuum furnace is therefore small.
  • the exhaust pipes can be welded to each other after soldering the boards together.
  • the inner boards have openings for the insertion of copper, which then melts in the vacuum furnace during the soldering.
  • the invention provides that the pipe socket is also soldered to the flange formed by the circuit boards.
  • the pipe socket can be soldered into the exhaust opening of the boards. It can be provided here that the outside of the pipe socket is connected, in particular soldered, to the inside of the exhaust opening of at least one circuit board. This soldering process can also take place when the circuit boards are connected to one another in the soldering furnace.
  • the exhaust pipes are then welded to the pipe socket. Therefore, according to the proposal of the invention, the exhaust pipes in the area of the elbow no longer consist of cast iron, but instead of bent pipe, which makes it possible to keep their wall thickness smaller, despite great stability, than was possible with cast iron.
  • the outer i.e. the circuit board facing away from the engine block has a curved edge surrounding its exhaust opening, which forms the pipe socket.
  • a process step namely the soldering of the pipe socket, is saved.
  • the exhaust pipes can be welded directly onto the bent edge forming the pipe socket.
  • the edge is formed by deep drawing. It is also advantageously possible for the edge to be punched through during the manufacture of the board.
  • Fig. Shows a plan view of a circuit board 11 for forming a flange of an exhaust manifold.
  • the circuit board contains two exhaust openings 12 which, when the exhaust flange is attached to an engine block, are in line with the corresponding exhaust openings of the engine block.
  • For fastening the circuit board 11 to the engine block there are several holes 13 with which the flange can be screwed onto the engine block.
  • the circuit board 11 contains a number of small holes 14 in the region of the edge of the exhaust openings 12, which holes are intended to hold solder, for example solder copper.
  • Fig. Shows the structure of an exhaust flange 15 from several boards. A total of four boards are provided to form the flange 15.
  • the two inner boards 11, 15 are constructed identically and have the shape shown in FIG. 1. They have matching openings 13 for the passage of a screw and matching holes 14 for inserting the solder copper.
  • FIG. 2 it is also shown in FIG. 2 that the connection of the boards can also be carried out by resistance welding, for which purpose the two boards 11, 15 have a welding pin 16 which is inserted into openings in the boards 11, 15 and after protrudes conically above and below. When the outer boards 17, 18, which are under tension, are pressed, resistance welding then takes place.
  • the circuit board 18 arranged in the direction of the engine block does not contain any holes 14 for solder, but again a hole 13 for fastening.
  • the exhaust opening 19, which is in line with the exhaust openings 12 of the other boards, has a smaller area.
  • a pipe socket 20 is shown, which is only broken off and is soldered to the inner walls of the exhaust openings 12. With its end face 21, the pipe socket 20 is soldered to the top 22 of the motor-side circuit board 18. Accordingly, the exhaust opening 19 of the engine-side board 18 is offset inwards by the wall thickness of the pipe socket 20.
  • the individual boards are moved towards one another in such a way that they abut one another and in this position are soldered to one another, with the aid of the soldering copper arranged in the holes, or else welded, with the aid of the welding pin 16.
  • the welding pin 16 pronounced humps can also be used.
  • Fig. Shows a modified embodiment.
  • the flange 23 consists of four individual boards, of which the outer board 24 has a punched-out edge 25 surrounding its exhaust opening.
  • the edge 25 has the shape of an approximately tubular, short extension.
  • an exhaust pipe 26 is only shown schematically, which can be soldered or welded to the inside of the edge 25.
  • a separate pipe socket 20 is unnecessary; since the edge 25 forms the pipe socket.
  • the exhaust port 28 of the engine-side board 27 has the same shape and size as the exhaust ports of the other boards.
  • a manifold pipe could also be inserted and fastened in the pipe socket 20 shown in FIG. 2, as is shown and described in FIG. 3 with regard to the exhaust pipe 26.

Abstract

1. Exhaust manifold with a flange (15, 23) for its fixing to an engine block and exhaust pipes leading away from flange (15, 23), characterized in that the flange (15, 23) is constructed in laminated manner from at least two welded or soldered together sheet blanks (11, 15, 17, 18, 24, 27) which have an exhaust opening (12, 19, 28) for each exhaust pipe and in the vicinity of which a pipe socket (20) is welded or soldered to the flange (15, 23).

Description

Die Erfindung betrifft einen Auspuffkrümmer mit einem Flansch zu seiner Befestigung an einem Motorblock und mit von dem Flansch wegführenden Auspuffrohren.The invention relates to an exhaust manifold with a flange for its attachment to an engine block and with exhaust pipes leading away from the flange.

Auspuffkrümmer dieser Art werden z.Zt. üblicherweise als Gussteile hergestellt (US-A 2847819). Dabei bildet der Flansch, mit dessen Hilfe der Auspuffkrümmer an dem Motorblock angeschraubt wird, die grössten Probleme, da der Flansch gasdicht an dem Motorblock angeschraubt sein muss. Hinzu kommt, dass die Anforderungen des yodernen Motorbaus bestimmte Flanschformen und -dicken vorschreiben, die bei Herstellung mit Hilfe von Guss einen hohen finanziellen Aufwand bedeuten. Die Gussteile benötigen eine Nachbearbeitung, die insbesondere bei komplizierten Formen teuer ist.Exhaust manifolds of this type are currently usually produced as castings (US-A 2847819). The flange, with the help of which the exhaust manifold is screwed onto the engine block, poses the greatest problems, since the flange must be screwed onto the engine block in a gas-tight manner. In addition, the requirements of modern engine construction prescribe certain flange shapes and thicknesses, which mean a high financial outlay when manufactured using cast iron. The castings require post-processing, which is expensive, particularly in the case of complicated shapes.

Der Erfindung liegt die Aufgabe zugrunde, einen Auspuffkrümmer der eingangs genannten Art derart weiterzubilden, dass er sich mit beachtlichen Kostenersparnissen herstellen lässt und dennoch die kompliziertesten Flanschformen ermöglicht.The invention has for its object to develop an exhaust manifold of the type mentioned in such a way that it can be produced with considerable cost savings and still enables the most complicated flange shapes.

Zur Lösung disser Aufgabe schlägt die Erfindung einen Auspuffkrümmer vor, bei dem der Flansch lamellenartig aus mindestens zwei miteinander verschweissten oder verlöteten Platinen aufgebaut ist, die für jedes Auspuffrohr eine Auspufföffnung aufweisen, in deren Bereich an dem Flansch ein Rohrstutzen angeschweisst oder angelötet ist. Die Platinen lassen sich ausserordentlich einfach als Stanzteile herstellen, wobei die kompliziertesten Formen möglich sind. Aufgrund des Aufbaus aus mehreren Platinen lässt sich jede gewünschte Dicke und Festigkeit erreichen, wobei die Nachbearbeitung, sofern eine solche überhaupt noch nötig ist, ausserordentlich einfach ist. Der Rohrstutzen, der im Bereich der Auspufföffnungen vorhanden ist, macht es möglich, die eigentlichen Auspuffrohre ebenfalls aus Rohrmaterial herzustellen und an den Rohrstutzen anzuschweissen. Dadurch wird es wiederum möglich, die Auspuffrohre selbst dünner herzustellen als dies bei Gussmaterial möglich war. Die dünneren und dennoch festen und stabilen Auspuffrohre haben den Vorteil geringerer Wärmekapazität, was insbesondere im Zusammenhang mit den Katalysatoren von Vorteil ist. Diese müssen zu ihrem korrekten Arbeiten eine bestimmte Mindesttemperatur aufweisen, wobei die Massnahmen der Erfindung dafür sorgen, dass in der Kaltstartphase nicht zu viel Wärme von den Katalysatoren durch die Auspuffrohre aufgenommen wird.To solve this problem, the invention proposes an exhaust manifold in which the flange is constructed in a lamella-like manner from at least two boards which are welded or soldered to one another and which have an exhaust opening for each exhaust pipe, in the area of which a pipe socket is welded or soldered to the flange. The boards are extremely easy to manufacture as stamped parts, and the most complicated shapes are possible. Due to the structure of several boards, any desired thickness and strength can be achieved, and post-processing, if such is still necessary, is extremely simple. The pipe socket, which is present in the area of the exhaust openings, makes it possible to also manufacture the actual exhaust pipes from pipe material and to weld them to the pipe socket. This in turn makes it possible to make the exhaust pipes themselves thinner than was possible with cast material. The thinner, yet firm and stable exhaust pipes have the advantage of lower heat capacity, which is particularly advantageous in connection with the catalytic converters. These have to have a certain minimum temperature in order to work correctly, the measures of the invention ensuring that not too much heat is absorbed by the catalytic converters through the exhaust pipes in the cold start phase.

Die Erfindung schlägt weiter vor, dass die Platinen miteinander widerstandsverschweisst oder buckelverschweisst werden.The invention further proposes that the boards are resistance welded or hump welded together.

Zu diesem Zweck können bei mehreren Platinen beispielsweise die inneren Platinen einen oder mehrere Schweissstifte aufweisen, die in Richtung auf die äusseren Platinen vorstehen und daher bei einer elektrischen Widerstandsverschweissung den Kontaktpunkt bilden. Bei der Verbindung der einzelnen Platinen miteinander kann es ausreichen, wenn eine gasdichte Verbindung nur im Bereich um die eigentlichen Auspufföffnungen herum durchgeführt ist, da die Platinen über durchgehende Löcher mit dem Motorblock verschraubt werden können.For this purpose, in the case of a plurality of circuit boards, for example, the inner circuit boards can have one or more welding pins which project in the direction of the outer circuit boards and therefore form the contact point in the case of electrical resistance welding. When connecting the individual boards together, it may be sufficient if a gas-tight connection is only carried out in the area around the actual exhaust openings, since the boards can be screwed to the engine block via through holes.

Wenn die Platinen miteinander verlötet sind, können sie unter Schutzgas verlötet werden, wobei als Lot ein Reinkupfer Verwendung finden kann. Besonders günstig ist es jedoch, wenn die Verlötung im Vakuumofen vor sich geht. Dies ist aufgrund der Ausbildung des Flansches mit einem Rohrstutzen möglich, da in diesem Stadium noch nicht die Auspuffrohre vorhanden sind und dadurch der Platzbedarf des Flansches in dem Vakuumofen klein ist. Die Auspuffrohre können nach dem Verlöten der Platinen aneinander an diesen angeschweisst werden.If the boards are soldered to one another, they can be soldered under protective gas, using pure copper as the solder. However, it is particularly favorable if the soldering takes place in a vacuum oven. This is possible due to the design of the flange with a pipe socket, since the exhaust pipes are not yet available at this stage and the space required for the flange in the vacuum furnace is therefore small. The exhaust pipes can be welded to each other after soldering the boards together.

Zur besseren Durchführung der Verlötung kann vorgesehen sein, dass die inneren Platinen Öffnungen zum Einsetzen von Kupfer aufweisen, das dann im Vakuumofen bei der Verlötung schmilzt.For better execution of the soldering, it can be provided that the inner boards have openings for the insertion of copper, which then melts in the vacuum furnace during the soldering.

Die Erfindung sieht vor, dass auch der Rohrstutzen mit dem durch die Platinen gebildeten Flansch verlötet ist. Insbesondere kann der Rohrstutzen in die Auspufföffnung der Platinen eingelötet sein. Hier kann vorgesehen sein, dass der Rohrstutzen mit seiner Aussenseite mit der Innenseite der Auspufföffnung mindestens einer Platine verbunden, insbesondere verlötet ist. Dieser Lötvorgang kann zugleich mit dem Verbinden der Platinen miteinander im Lötofen erfolgen.The invention provides that the pipe socket is also soldered to the flange formed by the circuit boards. In particular, the pipe socket can be soldered into the exhaust opening of the boards. It can be provided here that the outside of the pipe socket is connected, in particular soldered, to the inside of the exhaust opening of at least one circuit board. This soldering process can also take place when the circuit boards are connected to one another in the soldering furnace.

In Weiterbildung kann vorgesehen sein, dass der Rohrstutzen mit seiner Stirnseite an der motorseitigen Platine aufliegt. Dies hat für die Herstellung und für die gasdichte Anbringung des Auspuffkrümmers nach der Erfindung besondere Vorteile.In a further development it can be provided that the end of the pipe socket rests on the motor-side circuit board. This has particular advantages for the manufacture and for the gas-tight attachment of the exhaust manifold according to the invention.

Die Auspuffrohre werden an dem Rohrstutzen anschliessend angeschweisst. Daher bestehen nach dem Vorschlag der Erfindung die Auspuffrohre im Bereich des Krümmers nicht mehr aus Guss, sondern aus gebogenem Rohr, was es ermöglicht, ihre Wandstärke trotz grosser Stabilität kleiner zu halten, als dies bei Guss möglich war.The exhaust pipes are then welded to the pipe socket. Therefore, according to the proposal of the invention, the exhaust pipes in the area of the elbow no longer consist of cast iron, but instead of bent pipe, which makes it possible to keep their wall thickness smaller, despite great stability, than was possible with cast iron.

Es kann ebenfalls vorgesehen sein, dass die äussere, d.h. die vom Motorblock weggewandte Platine einen ihre Auspufföffnung umgebenden gebogenen Rand aufweist, der den Rohrstutzen bildet. In diesem Fall wird nicht nur ein Einzelteil, sondern auch ein Verfahrensschritt, nämlich das Anlöten des Rohrstutzens, eingespart. An dem den Rohrstutzen bildenden umgebogenen Rand können die Auspuffrohre direkt angeschweisst werden.It can also be provided that the outer, i.e. the circuit board facing away from the engine block has a curved edge surrounding its exhaust opening, which forms the pipe socket. In this case, not only an individual part, but also a process step, namely the soldering of the pipe socket, is saved. The exhaust pipes can be welded directly onto the bent edge forming the pipe socket.

Es kann in Weiterbildung der Erfindung vorgesehen sein, dass der Rand durch Tiefziehen gebildet ist. Ebenfalls ist es mit Vorteil möglich, dass der Rand beim Herstellen der Platine durchgestanzt ist.In a further development of the invention it can be provided that the edge is formed by deep drawing. It is also advantageously possible for the edge to be punched through during the manufacture of the board.

Weitere Merkmale, Einzelheiten und Vorzüge der Erfindung ergeben sich aus der folgenden Beschreibung bevorzugter Ausführungsformen sowie anhand der Zeichnung. Hierbei zeigen:

  • Fig. 1 eine Aufsicht auf eine zum Herstellen eines Flansches eines Auspuffkrümmers verwendeten Platine;
  • Fig. einen schematischen Querschnitt durch einen Auspuff-Flansch vor seiner Herstellung;
  • Fig. einen entsprechenden Schnitt bei einer geänderten Ausführungsform.
Further features, details and advantages of the invention will become apparent from the following description of preferred embodiments and from the drawing. Here show:
  • Figure 1 is a plan view of a board used to manufacture a flange of an exhaust manifold.
  • Fig. A schematic cross section through an exhaust flange before its manufacture;
  • Fig. A corresponding section in a modified embodiment.

Fig. zeigt eine Aufsicht auf eine Platine 11 zur Bildung eines Flansches eines Auspuffkrümmers. Die Platine enthält zwei Auspufföffnungen 12, die bei Anbringung des Auspuff-Flansches an einem Motorblock in Übereinstimmung mit den entsprechenden Auspufföffnungen des Motorblokkes stehen. Zur Befestigung der Platine 11 an dem Motorblock sind mehrere Löcher 13 vorhanden, mit denen der Flansch an dem Motorblock angeschraubt werden kann. Die Platine 11 enthält im Bereich des Randes der Auspufföffnungen 12 mehrere kleine Löcher 14, die zur Aufnahme von Lötmittel, beispielsweise Lötkupfer dienen sollen.Fig. Shows a plan view of a circuit board 11 for forming a flange of an exhaust manifold. The circuit board contains two exhaust openings 12 which, when the exhaust flange is attached to an engine block, are in line with the corresponding exhaust openings of the engine block. For fastening the circuit board 11 to the engine block, there are several holes 13 with which the flange can be screwed onto the engine block. The circuit board 11 contains a number of small holes 14 in the region of the edge of the exhaust openings 12, which holes are intended to hold solder, for example solder copper.

Fig. zeigt den Aufbau eines Auspuff-Flansches 15 aus mehreren Platinen. Zur Bildung des Flansches 15 sind insgesamt vier Platinen vorgesehen. Die beiden inneren Platinen 11, 15 sind identisch aufgebaut und weisen die in Fig. 1 dargestellte Form auf. Sie haben übereinstimmende Öffnungen 13 für den Durchtritt einer Schraube sowie übereinstimmende Löcher 14 zum Einsetzen des Lötkupfers. Der Einfachheit halber ist zugleich in Fig. 2 noch dargestellt, dass die Verbindung der Platinen auch über ein Widerstandsschweissen erfolgen kann, zu welchem Zweck die beiden Platinen 11, 15 einen Schweissstift 16 aufweisen, der in Öffnungen der Platinen 11, 15 eingesetzt ist und nach oben und unten kegelartig herausragt. Beim Andrücken der unter Spannung stehenden äusseren Platinen 17, 18 erfolgt dann eine Widerstandsverschweissung.Fig. Shows the structure of an exhaust flange 15 from several boards. A total of four boards are provided to form the flange 15. The two inner boards 11, 15 are constructed identically and have the shape shown in FIG. 1. They have matching openings 13 for the passage of a screw and matching holes 14 for inserting the solder copper. For the sake of simplicity, it is also shown in FIG. 2 that the connection of the boards can also be carried out by resistance welding, for which purpose the two boards 11, 15 have a welding pin 16 which is inserted into openings in the boards 11, 15 and after protrudes conically above and below. When the outer boards 17, 18, which are under tension, are pressed, resistance welding then takes place.

Die in Richtung auf den Motorblock angeordnete Platine 18 enthält keine Löcher 14für Lötmittel, jedoch wiederum ein Loch 13 zur Befestigung. Die in Übereinstimmung mit den Auspufföffnungen 12 der anderen Platinen stehende Auspufföffnung 19 weist eine kleinere Fläche auf.The circuit board 18 arranged in the direction of the engine block does not contain any holes 14 for solder, but again a hole 13 for fastening. The exhaust opening 19, which is in line with the exhaust openings 12 of the other boards, has a smaller area.

Durch die Auspufföffnungen 12 der Platinen 11, 15 und 17 ist ein nur abgebrochen dargestellter Rohrstutzen 20 eingesetzt, der mit den Innenwandungen der Auspufföffnungen 12 verlötet wird. Mit seiner Stirnseite 21 ist der Rohrstutzen 20 auf der Oberseite 22 der motorseitigen Platine 18 aufgelötet. Dementsprechend ist die Auspufföffnung 19 der motorseitigen Platine 18 um die Wandstärke des Rohrstutzens 20 nach innen versetzt.Through the exhaust openings 12 of the boards 11, 15 and 17, a pipe socket 20 is shown, which is only broken off and is soldered to the inner walls of the exhaust openings 12. With its end face 21, the pipe socket 20 is soldered to the top 22 of the motor-side circuit board 18. Accordingly, the exhaust opening 19 of the engine-side board 18 is offset inwards by the wall thickness of the pipe socket 20.

Ausgehend von der in Fig. 2 dargestellten Stellung werden die einzelnen Platinen so aufeinander zu bewegt, dass sie dicht aneinander anliegen und in dieser Stellung miteinander verlötet, mit Hilfe des in den Löchern angeordneten Lötkupfers, oder aber verschweisst, mit Hilfe des Schweissstiftes 16. Statt des Schweissstiftes 16 können auch ausgeprägte Buckel Verwendung finden.Starting from the position shown in FIG. 2, the individual boards are moved towards one another in such a way that they abut one another and in this position are soldered to one another, with the aid of the soldering copper arranged in the holes, or else welded, with the aid of the welding pin 16. Instead of the welding pin 16, pronounced humps can also be used.

Es ergibt sich dann ein Auspuff-Flansch gewünschter Dicke, beispielsweise aus vier Platinen bestehend, und gewünschter Form, siehe beispielsweise die in Fig. 1 dargestellte Flanschform.The result is an exhaust flange of the desired thickness, for example consisting of four boards, and of the desired shape, see for example the flange shape shown in FIG. 1.

Fig. zeigt eine abgewandelte Ausführungsform. Wiederum besteht der Flansch 23 aus vier einzelnen Platinen, von denen die äussere Platine 24 einen durchgestanzten, ihre Auspufföffnung umgebenden Rand 25 aufweist. Der Rand 25 weist die Form eines etwa rohrartigen kurzen Ansatzes auf. In die Innenseite dieses Randes 25 ist ein nur schematisch dargestelltes Auspuffrohr 26 eingesetzt, das mit der Innenseite des Randes 25 verlötet oder verschweisst werden kann. Bei der in Fig. 3 dargestellten Ausführungsform erübrigt sich ein eigener Rohrstutzen 20; da der Rand 25 den Rohrstutzen bildet. Bei dieser Ausführungsform besitzt die Auspufföffnung 28 der motorseitigen Platine 27 die gleiche Form und Grösse wie die Auspufföffnungen der anderen Platinen.Fig. Shows a modified embodiment. Again, the flange 23 consists of four individual boards, of which the outer board 24 has a punched-out edge 25 surrounding its exhaust opening. The edge 25 has the shape of an approximately tubular, short extension. In the inside of this edge 25, an exhaust pipe 26 is only shown schematically, which can be soldered or welded to the inside of the edge 25. In the embodiment shown in Fig. 3, a separate pipe socket 20 is unnecessary; since the edge 25 forms the pipe socket. In this embodiment, the exhaust port 28 of the engine-side board 27 has the same shape and size as the exhaust ports of the other boards.

Auch in den in Fig. 2 dargestellten Rohrstutzen 20 könnte ein Krümmerrohr derart eingesetzt und befestigt werden, wie dies in Fig. 3 bezüglich des Auspuffrohrs 26 dargestellt und beschrieben ist.A manifold pipe could also be inserted and fastened in the pipe socket 20 shown in FIG. 2, as is shown and described in FIG. 3 with regard to the exhaust pipe 26.

Claims (9)

1. Exhaust manifold with a flange (15, 23) for its fixing to an engine block and exhaust pipes leading away from flange (15, 23), characterized in that the flange (15, 23) is constructed in laminated manner from at least two welded or soldered together sheet blanks (11, 15, 17, 18, 24, 27), which have an exhaust opening (12, 19, 28) for each exhaust pipe and in the vicinity of which a pipe socket (20) ist welded or soldered to the flange (15,23).
2. Exhaust manifold according to claim 1, characterized in that the sheet blanks (11, 15, 17, 18, 24, 27) are resistance or projection welded together.
3. Exhaust manifold according to one of the preceding claims, characterized in that the pipe socket (20) is soldered to the flange (15, 23) formed by the sheet blanks (11, 15, 17, 18, 24, 27).
4. Exhaust manifold according to one of the preceding claims, characterized in that the outside of the pipe socket (20) is welded or soldered to the inside of exhaust opening (12) of at least one sheet blank (11, 15, 17).
5. Exhaust manifold according to one of the preceding claims, characterized in that the end face (21) of pipe socket (20) is placed on the engine-side sheet blank (18) and is welded or soldered thereto.
6. Exhaust manifold according to one of the preceding claims, characterized in that the exhaust pipes are welded to the pipe socket (20).
7. Exhaust manifold according to one of the preceding claims, characterized in that the outer sheet blank (24) has a bent over rim (25) surrounding its exhaust opening (12) and which forms the pipe socket.
8. Exhaust manifold according to claim 7, characterized in that. rim (25) is formed by deep drawing.
9. Exhaust manifold according to claim 7, characterized in that rim (25) is stamped through.
EP85110556A 1984-09-19 1985-08-22 Exhaust manifold Expired EP0178430B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85110556T ATE34805T1 (en) 1984-09-19 1985-08-22 EXHAUST MANIFOLD.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843434288 DE3434288A1 (en) 1984-09-19 1984-09-19 EXHAUST MANIFOLD
DE3434288 1984-09-19

Publications (2)

Publication Number Publication Date
EP0178430A1 EP0178430A1 (en) 1986-04-23
EP0178430B1 true EP0178430B1 (en) 1988-06-01

Family

ID=6245725

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85110556A Expired EP0178430B1 (en) 1984-09-19 1985-08-22 Exhaust manifold

Country Status (3)

Country Link
EP (1) EP0178430B1 (en)
AT (1) ATE34805T1 (en)
DE (2) DE3434288A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0918148A2 (en) 1997-11-26 1999-05-26 HEINRICH GILLET GMBH & CO. KG Exhaust manifold flange
DE102012011609A1 (en) 2012-06-12 2012-11-29 Daimler Ag Supporting element i.e. sliding strip, for fastening exhaust gas manifold at combustion engine of motor car, has contact surfaces including specific angle with one another, where one of surfaces is inclined relative to other surface

Families Citing this family (14)

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Publication number Priority date Publication date Assignee Title
DE3717989A1 (en) * 1987-05-27 1988-12-08 Bischoff Erhardt Gmbh Co Kg FLANGE FOR FASTENING TUBES
DE3925802A1 (en) * 1989-08-04 1991-02-07 Bayerische Motoren Werke Ag Exhaust manifold for use with turbo-charger - has set steel tubes fixed between cast flanges
DE4025652A1 (en) * 1989-10-26 1991-05-02 Hermanns Gebr Kremo Werke Pipe connection flange with pipe socket - has ring washer of U=shaped annular cross=section, with sealing surface, bridge piece and screws
DE9316960U1 (en) * 1993-11-05 1995-03-16 Prototechnik Gmbh Device for screwing exhaust manifolds to an engine block
DE19607184C1 (en) * 1996-02-27 1997-04-24 Schmitz & Brill Gmbh & Co Kg Flange for multi-flow exhaust gas installation for road vehicle
DE19721092C1 (en) * 1997-05-20 1998-09-03 Bayerische Motoren Werke Ag Exhaust fume conductor esp. for combustion engine
DE19722725A1 (en) * 1997-05-30 1998-12-03 Zeuna Staerker Kg Pipe merging
DE19735061B4 (en) * 1997-08-13 2007-09-13 Arvinmeritor Emissions Technologies Gmbh Flange for a multi-flow exhaust system of motor vehicles
DE19743399C2 (en) * 1997-10-01 2003-05-28 Schmitz & Brill Gmbh & Co Kg Flange for a multi-flow exhaust system of motor vehicles
DE10218103A1 (en) * 2002-04-23 2003-11-20 Boysen Friedrich Gmbh Co Kg Exhaust manifold for IC engines has solder connections between exhaust pipes and engine mounting flange, pipes and outer shell, and/or shell and flange, preventing inclusion of foreign bodies
DE10338382B4 (en) * 2003-08-21 2008-07-31 Adam Opel Ag Manifold for an internal combustion engine and method for its production
DE102004051680C5 (en) * 2004-10-22 2014-02-27 Benteler Automobiltechnik Gmbh Arrangement for fastening an exhaust manifold
DE102007062660A1 (en) 2007-12-24 2009-06-25 J. Eberspächer GmbH & Co. KG exhaust manifold
DE102013102859B4 (en) 2013-03-20 2015-04-02 Tenneco Gmbh Gland plate for a manifold of an exhaust system

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Publication number Priority date Publication date Assignee Title
US2135628A (en) * 1935-10-17 1938-11-08 Acklin Stamping Company Manifold
US2847819A (en) * 1952-11-07 1958-08-19 Gen Motors Corp Reversible exhaust manifold system
US3177649A (en) * 1963-03-08 1965-04-13 Alco Products Inc Exhaust manifolds
DE3129351C2 (en) * 1981-07-24 1983-09-29 Roth Technik GmbH, 7560 Gaggenau Flange for pipe elbows on combustion engines

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0918148A2 (en) 1997-11-26 1999-05-26 HEINRICH GILLET GMBH & CO. KG Exhaust manifold flange
US6155045A (en) * 1997-11-26 2000-12-05 Heinrich Gillet Gmbh & Co. Kg Engine flange
DE102012011609A1 (en) 2012-06-12 2012-11-29 Daimler Ag Supporting element i.e. sliding strip, for fastening exhaust gas manifold at combustion engine of motor car, has contact surfaces including specific angle with one another, where one of surfaces is inclined relative to other surface

Also Published As

Publication number Publication date
ATE34805T1 (en) 1988-06-15
EP0178430A1 (en) 1986-04-23
DE3563090D1 (en) 1988-07-07
DE3434288A1 (en) 1986-03-20

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