EP1365121A1 - Manifold for an internal combustion engine and method for manufacturing such a manifold - Google Patents
Manifold for an internal combustion engine and method for manufacturing such a manifold Download PDFInfo
- Publication number
- EP1365121A1 EP1365121A1 EP03004679A EP03004679A EP1365121A1 EP 1365121 A1 EP1365121 A1 EP 1365121A1 EP 03004679 A EP03004679 A EP 03004679A EP 03004679 A EP03004679 A EP 03004679A EP 1365121 A1 EP1365121 A1 EP 1365121A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- exhaust
- outer shell
- solder
- exhaust pipes
- soldered
- 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
Links
- 238000000034 method Methods 0.000 title claims description 9
- 238000002485 combustion reaction Methods 0.000 title claims description 7
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 229910000679 solder Inorganic materials 0.000 claims abstract description 51
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910000570 Cupronickel Inorganic materials 0.000 claims abstract description 5
- 229910052802 copper Inorganic materials 0.000 claims abstract description 5
- 239000010949 copper Substances 0.000 claims abstract description 5
- YOCUPQPZWBBYIX-UHFFFAOYSA-N copper nickel Chemical compound [Ni].[Cu] YOCUPQPZWBBYIX-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 5
- 238000005476 soldering Methods 0.000 claims description 19
- 239000000945 filler Substances 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 20
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 238000009826 distribution Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Images
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
-
- 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
Definitions
- the present invention relates to an exhaust manifold for an internal combustion engine with at least one exhaust pipe, possibly one Exhaust pipe receiving outer shell and at least one with the Exhaust pipes and / or engine flange connected to the outer shell for connecting the exhaust manifold to the internal combustion engine.
- Such exhaust manifolds have between the exhaust pipe and engine flange and if necessary between the outer shell and the motor flange and / or a welded connection between the outer shell and the exhaust pipe.
- the problem occurs that foreign particles such as welding spatter in the exhaust manifold remain, the subsequent components such as later in operation Can damage catalysts and turbochargers.
- To make this possible Avoid such exhaust manifolds with laser welded connections manufactured. But this is expensive and requires one relatively great effort for the exact manufacture of the interconnected Components.
- the invention has for its object an exhaust manifold and a Specify processes for its manufacture that do not have these disadvantages exhibit. In particular, foreign particles in the manifold should be avoided become.
- connection between the Exhaust pipes and the engine flanges and, if necessary, between the Exhaust pipes and the outer shell and / or between the outer shell and the motor flanges are designed as a soldered connection.
- soldering process can be simplified and improved in that between the parts to be soldered together to a solder gap coordinated press fit is present. For one thing, this can make a close Soldering gap can be achieved, which leads to a relatively large distribution of the Lots leads.
- the connection between the parts is not how when welding, linear but flat, which increases the strength is increased.
- the parts to be soldered together thereby securely positioned until the soldering is complete.
- fixation with tack weld spots and light Press fit to be provided.
- the solder joints are arranged at a point protected from the exhaust gas flow.
- the solder joints on a side facing away from the exhaust gas flow Side of the exhaust pipe or viewed in the exhaust gas flow direction behind one Paragraph should be arranged.
- the solder joints are thereby in operation of the exhaust system are not directly flown by the exhaust gas flow and remain accordingly relatively cool. This makes it possible even at relative hot exhaust gases to use a solder joint on exhaust manifolds.
- solder joints are in arranged a groove, the opening of which faces away from the exhaust gas flow.
- the This enables solder joints to be better protected from the exhaust gas flow and be kept cool.
- Such an embodiment is especially in engines with high exhaust gas temperatures such as gasoline engines advantageous.
- Another way of closing the solder joints to the exhaust gas flow protect is the passage openings of the motor flanges for to design the exhaust gas flow in such a way that it flows in the direction of flow expand, and the exhaust pipes and / or the outer shell against to arrange the level encountered. This also simplifies assembly.
- a particularly advantageous embodiment of the invention also results then when the motor flanges each around their passage openings have a groove in which the exhaust pipes and / or the outer shell the exhaust pipes are inserted.
- the solder can do well are protected from exhaust gas and installation is particularly easy possible.
- the outer shell of the exhaust manifold according to the invention is in known and advantageous way preferably from two half-shells. According to the invention, these two half-shells can also be used together be soldered. This means that a welding process and so that the formation of contamination is avoided. moreover the connections can be made in a single operation become.
- the outlet flange of the exhaust manifold is also preferred with the Exhaust pipes and / or the outer shell soldered. As before, this will the formation of contaminants avoided and the simultaneous All connections can be made in one operation.
- a copper solder with a melting temperature for example, can be used as the solder of approx. 1083 ° C, a copper-nickel solder with a melting temperature of 1085 ° C to 1100 ° C or a high-temperature nickel solder with a Melting temperature of approx. 1000 ° C can be used.
- the parts to be soldered to each other are particularly important before soldering fixed against each other. This can simplify assembly and ensure tight and tight soldering.
- the smallest possible solder gap is preferably set.
- the inner component expanded at a solder point against the outer component be, for example by means of an expanding mandrel.
- the solder gap is thereby preferably to less than 0.2 mm, in particular between approximately 0.02 and 0.015 mm set. These values have proven to be special for good soldering appropriately highlighted.
- the soldering temperature is preferably between 1000 ° C and 1200 ° C, each according to lot.
- a copper solder for example, it is between approx. 1100 ° C and 1150 ° C, with a copper-nickel solder approx. 1120 ° C and at a high temperature nickel solder approx. 1040 ° C.
- the soldering is more common Way under a protective atmosphere, especially hydrogen, or in a vacuum carried out.
- the exhaust manifold shown in FIG. 1 comprises three exhaust pipes 1, 2 and 3, each connected to a motor flange 4 at one end are.
- the other ends of the exhaust pipes 1 and 2 are in one End of a manifold 5 inserted, the other end together with the other end of the third exhaust pipe 3 in one end of a another manifold 6 is inserted.
- All exhaust pipes 1, 2 and 3 and the manifolds 5 and 6 are in one Outer shell 7 housed, which is formed by two half-shells 8 and 9 is.
- the outer shell 7 is together with the exhaust pipes 1, 2 and 3 into the motor flanges 4 and together with the second manifold 6 in an outlet flange 10 is inserted. In the area of the outlet flange 10, however, only the outer shell 7 is firmly connected to the outlet flange 10, while the second manifold 6 is arranged cantilever.
- the exhaust pipes 1, 2 and 3 are firmly connected to the engine flanges 4.
- these have a gradation widening in the exhaust gas flow direction I. 11 so that a receptacle is formed in which the exhaust pipes 1, 2 and 3 are inserted together with the outer shell 7.
- the exhaust gas openings 12 of the motor flanges 4 are each flush with the inner walls 21 of the exhaust pipes 1, 2 and 3 are formed.
- solder connections between the exhaust pipes 1, 2 and 3 with the motor flanges 4 and the outer shell 7 in the area of the motor flanges 4 and the connection of the outer shell 7 with the outlet flange 10 and the connection between the two half-shells 8 and 9 the outer shell 7 are designed as solder connections.
- a possible The type of soldered connection on the motor flanges 4 is in each case in FIGS. 2, 3 and 4.
- solder 17 Through the sloping walls 13 and 15 and the arrangement of the outer shell 7 and the exhaust pipe 1 are two receiving areas 16 for solder 17 created, which can be used alternatively or cumulatively.
- the solder 17 can be used as a paste be applied.
- the soldered connection is then made by heating made, the solder 17 due to capillary action in the Gap 18 between the motor flange 4 and the outer shell 7 and in the gap 19 is drawn between the outer shell 7 and the exhaust pipe 1. Thereby creates a large-area connection that leads to a high durability leads.
- the step 11 of the motor flange 4 just trained. That is, the wall 13 is perpendicular to Wall 14. Opposed by staggered arrangement of the exhaust pipe 1 the outer shell 7 can also have a receptacle 16 in this variant for lot 17 at level 11. The sloping wall 15 is here also trained smaller. Otherwise, the design is correct with the configuration of FIG. 2.
- the motor flange 4 is in the area its exhaust passage opening 12 provided with a groove 20, the opening 22 points in the exhaust gas flow direction I.
- the groove 20 are the exhaust pipe 1 and the outer shell 7 inserted, here the outer shell 7 opposite the exhaust pipe 1 is arranged offset, so that again a receptacle 16 for lot 17 is created.
- Another shot 16 is here also through an inclined wall 15 following the wall 14 formed.
- a solder ring is preferably used in this embodiment. The rest of the structure and the mode of action is again the same as for the Variant of Fig. 2nd
- Such an exhaust manifold can be used in particular as a diesel manifold, because the exhaust gas temperatures are lower here.
- Using a correspondingly higher melting solder is also the use possible with petrol engines.
- a use of the solder joints is also due to the hidden arrangement of the solder joints by the Paragraph 11 or the groove 20 in the motor flange 4 reached.
- One if possible low heating of the solder joint is also promoted by the fact that the Exhaust gas passage opening 12 of the engine flange 4 is flush with the inner wall 21 of the exhaust pipes 1, 2 and 3 is formed.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft einen Abgaskrümmer für einen Verbrennungsmotor mit mindestens einem Abgasrohr, eventuell einer die Abgasrohre aufnehmenden Außenschale und mindestens einem mit den Abgasrohren und/oder mit der Außenschale verbundenen Motorflansch zur Verbindung des Abgaskrümmers mit dem Verbrennungsmotor.The present invention relates to an exhaust manifold for an internal combustion engine with at least one exhaust pipe, possibly one Exhaust pipe receiving outer shell and at least one with the Exhaust pipes and / or engine flange connected to the outer shell for connecting the exhaust manifold to the internal combustion engine.
Derartige Abgaskrümmer weisen zwischen Abgasrohr und Motorflansch sowie gegebenenfalls zwischen Außenschale und Motorflansch und/oder zwischen Außenschale und Abgasrohr eine Schweißverbindung auf. Dabei tritt das Problem auf, dass Fremdpartikel wie Schweißspritzer im Abgaskrümmer verbleiben, die später im Betrieb nachfolgende Bauelemente wie Katalysatoren und Turbolader schädigen können. Um dies möglichst zu vermeiden, werden derartige Abgaskrümmer teilweise auch mit Laserschweißverbindungen hergestellt. Dies ist aber teuer und erfordert einen relativ großen Aufwand zur exakten Herstellung der miteinander zu verbindenden Bauteile.Such exhaust manifolds have between the exhaust pipe and engine flange and if necessary between the outer shell and the motor flange and / or a welded connection between the outer shell and the exhaust pipe. there The problem occurs that foreign particles such as welding spatter in the exhaust manifold remain, the subsequent components such as later in operation Can damage catalysts and turbochargers. To make this possible Avoid such exhaust manifolds with laser welded connections manufactured. But this is expensive and requires one relatively great effort for the exact manufacture of the interconnected Components.
Der Erfindung liegt die Aufgabe zugrunde, einen Abgaskrümmer und ein Verfahren zu dessen Herstellung anzugeben, die diese Nachteile nicht aufweisen. Insbesondere sollen Fremdpartikel im Krümmer vermieden werden. The invention has for its object an exhaust manifold and a Specify processes for its manufacture that do not have these disadvantages exhibit. In particular, foreign particles in the manifold should be avoided become.
Diese Aufgabe wird dadurch gelöst, dass die Verbindung zwischen den Abgasrohren und den Motorflanschen sowie gegebenenfalls zwischen den Abgasrohren und der Außenschale und/oder zwischen der Außenschale und den Motorflanschen als Lötverbindung ausgebildet ist.This problem is solved in that the connection between the Exhaust pipes and the engine flanges and, if necessary, between the Exhaust pipes and the outer shell and / or between the outer shell and the motor flanges are designed as a soldered connection.
Außerdem wird die Aufgabe durch ein Verfahren gemäß Anspruch 15
gelöst.In addition, the object is achieved by a method according to
Überraschenderweise hat sich gezeigt, dass Abgaskrümmer der eingangs genannten Art gut und günstig gelötet werden können. Dabei ergibt sich der Vorteil, dass beim Löten keine Fremdpartikel entstehen, die nachfolgende Bauelemente schädigen könnten. Auch wird der Abgaskrümmer beim Erhitzen auf die Löttemperatur metallisch gereinigt.Surprisingly, it has been shown that the exhaust manifold at the beginning mentioned type can be soldered well and cheaply. It follows the advantage that no foreign particles arise during soldering, the following one Components could damage. Also the exhaust manifold metallically cleaned when heated to the soldering temperature.
Vereinfacht und verbessert kann der Lötvorgang dadurch werden, dass zwischen den miteinander zu verlötenden Teilen ein auf Löt-Spaltmaß abgestimmter Presssitz vorhanden ist. Zum einen kann dadurch ein enger Lötspalt erreicht werden, der zu einer relativ großflächigen Verteilung des Lots führt. Die Verbindung zwischen den Teilen ist dadurch nicht, wie beim Schweißen, linienförmig sondern flächig, wodurch die Festigkeit erhöht wird. Zum anderen werden die miteinander zu verlötenden Teile dadurch sicher positioniert, bis die Lötung abgeschlossen ist.The soldering process can be simplified and improved in that between the parts to be soldered together to a solder gap coordinated press fit is present. For one thing, this can make a close Soldering gap can be achieved, which leads to a relatively large distribution of the Lots leads. The connection between the parts is not how when welding, linear but flat, which increases the strength is increased. On the other hand, the parts to be soldered together thereby securely positioned until the soldering is complete.
Alternativ kann eine Fixierung durch Heftschweißpunkte und leichten Presssitz vorgesehen sein.Alternatively, fixation with tack weld spots and light Press fit to be provided.
Nach einer bevorzugten Ausgestaltung der Erfindung sind die Lötstellen an einer gegenüber dem Abgasstrom geschützten Stelle angeordnet. Beispielsweise können die Lötstellen auf einer dem Abgasstrom abgewandten Seite des Abgasrohres oder in Abgasstromrichtung betrachtet hinter einem Absatz angeordnet sein. Die Lötstellen werden dadurch im Betrieb der Abgasanlage nicht direkt vom Abgasstrom angeströmt und bleiben dementsprechend relativ kühl. Dadurch ist es möglich, auch bei relativ heißen Abgasen eine Lötverbindung bei Abgaskrümmern einzusetzen.According to a preferred embodiment of the invention, the solder joints are arranged at a point protected from the exhaust gas flow. For example the solder joints on a side facing away from the exhaust gas flow Side of the exhaust pipe or viewed in the exhaust gas flow direction behind one Paragraph should be arranged. The solder joints are thereby in operation of the exhaust system are not directly flown by the exhaust gas flow and remain accordingly relatively cool. This makes it possible even at relative hot exhaust gases to use a solder joint on exhaust manifolds.
Nach einer besonderen Ausgestaltung der Erfindung sind die Lötstellen in einer Nut angeordnet, deren Öffnung vom Abgasstrom weg weist. Die Lötstellen können dadurch noch besser vor dem Abgasstrom geschützt und entsprechend kühl gehalten werden. Eine solche Ausgestaltung ist insbesondere bei Motoren mit hohen Abgastemperaturen wie Benzinmotoren vorteilhaft.According to a special embodiment of the invention, the solder joints are in arranged a groove, the opening of which faces away from the exhaust gas flow. The This enables solder joints to be better protected from the exhaust gas flow and be kept cool. Such an embodiment is especially in engines with high exhaust gas temperatures such as gasoline engines advantageous.
Eine andere Möglichkeit, die Lötstellen gegenüber dem Abgasstrom zu schützen, besteht darin, die Durchtrittsöffnungen der Motorflansche für den Abgasstrom derart gestuft auszubilden, dass sie sich in Strömungsrichtung erweitern, und die Abgasrohre und/oder die Außenschale gegen die Stufe gestoßen anzuordnen. Hierdurch wird auch die Montage vereinfacht.Another way of closing the solder joints to the exhaust gas flow protect, is the passage openings of the motor flanges for to design the exhaust gas flow in such a way that it flows in the direction of flow expand, and the exhaust pipes and / or the outer shell against to arrange the level encountered. This also simplifies assembly.
Ein weiterer Vorteil ergibt sich, wenn die Durchtrittsöffnungen der Abgasrohre und der Motorflansche jeweils bündig ineinander übergehen, da dann die Abgasströmung wenig behindert wird, was zu einer entsprechend geringeren Aufheizung des Verbindungsbereiches zwischen Abgasrohren und Motorflanschen sowie gegebenenfalls Außenschale führt. Another advantage arises when the passage openings of the exhaust pipes and the motor flanges merge into each other, because then the exhaust gas flow is little hampered, resulting in a corresponding less heating of the connection area between exhaust pipes and motor flanges and, if necessary, the outer shell.
Eine besonders vorteilhafte Ausgestaltung der Erfindung ergibt sich auch dann, wenn die Motorflansche um ihre Durchtrittsöffnungen herum jeweils eine Nut aufweisen, in welche die Abgasrohre und/oder die Außenschale der Abgasrohre eingesteckt sind. Das Lot kann dadurch gut vor dem Abgas geschützt werden und die Montage ist besonders einfach möglich.A particularly advantageous embodiment of the invention also results then when the motor flanges each around their passage openings have a groove in which the exhaust pipes and / or the outer shell the exhaust pipes are inserted. The solder can do well are protected from exhaust gas and installation is particularly easy possible.
Die Außenschale des erfindungsgemäßen Abgaskrümmers besteht in an sich bekannter und vorteilhafter Weise bevorzugt aus zwei Halbschalen. Erfindungsgemäß können auch diese beiden Halbschalen miteinander verlötet sein. Damit kann auch an dieser Stelle ein Schweißvorgang und damit das Entstehen von Verunreinigungen vermieden werden. Zudem können die Verbindungen in einem gemeinsamen Arbeitsgang hergestellt werden.The outer shell of the exhaust manifold according to the invention is in known and advantageous way preferably from two half-shells. According to the invention, these two half-shells can also be used together be soldered. This means that a welding process and so that the formation of contamination is avoided. moreover the connections can be made in a single operation become.
Auch der Austrittsflansch des Abgaskrümmers ist bevorzugt mit den Abgasrohren und/oder der Außenschale verlötet. Wie zuvor, wird hierdurch das Entstehen von Verunreinigungen vermieden und die gleichzeitige Herstellung aller Verbindungen in einem Arbeitsgang ermöglicht.The outlet flange of the exhaust manifold is also preferred with the Exhaust pipes and / or the outer shell soldered. As before, this will the formation of contaminants avoided and the simultaneous All connections can be made in one operation.
Als Lot kann beispielsweise ein Kupferlot mit einer Schmelztemperatur von ca. 1083°C, ein Kupfer-Nickel-Lot mit einer Schmelztemperatur von 1085°C bis 1100°C oder auch ein Hochtemperatur-Nickel-Lot mit einer Schmelztemperatur von ca. 1000°C verwendet werden.A copper solder with a melting temperature, for example, can be used as the solder of approx. 1083 ° C, a copper-nickel solder with a melting temperature of 1085 ° C to 1100 ° C or a high-temperature nickel solder with a Melting temperature of approx. 1000 ° C can be used.
Zur Herstellung eines erfindungsgemäßen Abgaskrümmers werden die Abgasrohre und der Motorflansch und/oder die Außenschale durch Löten miteinander verbunden. Ebenso werden gegebenenfalls die beiden Halbschalen der Außenschale miteinander und die Abgasrohre und/oder die Außenschale mit dem Austrittsflansch bevorzugt verlötet. Dies kann vorteilhafterweise gemeinsam in einem einzigen Arbeitsgang in einem Lötofen erfolgen.To produce an exhaust manifold according to the invention Exhaust pipes and the motor flange and / or the outer shell by soldering connected with each other. Likewise, the two half-shells, if necessary the outer shell with each other and the exhaust pipes and / or the The outer shell is preferably soldered to the outlet flange. This can advantageously together in a single operation in one Soldering oven done.
Die miteinander zu verlötenden Teile werden vor dem Löten insbesondere gegeneinander kraftschlüssig fixiert. Damit kann die Montage vereinfacht und eine feste und dichte Lötung sichergestellt werden.The parts to be soldered to each other are particularly important before soldering fixed against each other. This can simplify assembly and ensure tight and tight soldering.
Um eine möglichst großflächige Verteilung des Lots im Spalt zu erreichen, wird bevorzugt ein möglichst kleiner Lotspalt eingestellt. Hierzu kann das innere Bauteil an einer Lotstelle gegen das äußere Bauteil aufgeweitet werden, beispielsweise mittels eines Aufweitdorns. Der Lotspalt wird dabei bevorzugt auf kleiner 0,2 mm, insbesondere zwischen ca. 0,02 und 0,015 mm eingestellt. Diese Werte haben sich für eine gute Lötung als besonders geeignet herausgestellt.In order to achieve the largest possible distribution of the solder in the gap, the smallest possible solder gap is preferably set. For this, the inner component expanded at a solder point against the outer component be, for example by means of an expanding mandrel. The solder gap is thereby preferably to less than 0.2 mm, in particular between approximately 0.02 and 0.015 mm set. These values have proven to be special for good soldering appropriately highlighted.
Die Löttemperatur beträgt bevorzugt zwischen 1000°C und 1200°C, je nach Lot. Bei einem Kupfer-Lot beträgt sie beispielsweise zwischen ca. 1100°C und 1150°C, bei einem Kupfer-Nickel-Lot ca. 1120°C und bei einem Hochtemperatur-Nickel-Lot ca. 1040°C. Die Lötung wird in üblicher Weise unter Schutzatmosphäre, insbesondere Wasserstoff, oder in Vakuum durchgeführt.The soldering temperature is preferably between 1000 ° C and 1200 ° C, each according to lot. For a copper solder, for example, it is between approx. 1100 ° C and 1150 ° C, with a copper-nickel solder approx. 1120 ° C and at a high temperature nickel solder approx. 1040 ° C. The soldering is more common Way under a protective atmosphere, especially hydrogen, or in a vacuum carried out.
Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und werden nachfolgend beschrieben. Es zeigen, jeweils in schematischer Darstellung:
- Fig. 1
- einen Längsschnitt durch einen erfindungsgemäßen Abgaskrümmer,
- Fig. 2
- eine erste Variante einer Lötstelle,
- Fig. 3
- eine zweite Variante einer Lötstelle, und
- Fig. 4
- eine dritte Variante einer Lötstelle.
- Fig. 1
- 2 shows a longitudinal section through an exhaust manifold according to the invention,
- Fig. 2
- a first variant of a solder joint,
- Fig. 3
- a second variant of a solder joint, and
- Fig. 4
- a third variant of a solder joint.
Der in Fig. 1 dargestellte Abgaskrümmer umfasst drei Abgasrohre 1, 2
und 3, die mit ihrem einen Ende jeweils mit einem Motorflansch 4 verbunden
sind. Die anderen Enden der Abgasrohre 1 und 2 sind in das eine
Ende eines Sammelrohres 5 eingesteckt, dessen anderes Ende zusammen
mit dem anderen Ende des dritten Abgasrohres 3 in das eine Ende eines
weiteren Sammelrohres 6 eingesteckt ist.The exhaust manifold shown in FIG. 1 comprises three exhaust pipes 1, 2
and 3, each connected to a motor flange 4 at one end
are. The other ends of the exhaust pipes 1 and 2 are in one
End of a
Alle Abgasrohre 1, 2 und 3 sowie die Sammelrohre 5 und 6 sind in einer
Außenschale 7 untergebracht, die durch zwei Halbschalen 8 und 9 gebildet
ist. Die Außenschale 7 ist zusammen mit den Abgasrohren 1, 2 und 3
in die Motorflansche 4 und zusammen mit dem zweiten Sammelrohr 6 in
einen Austrittsflansch 10 eingesteckt. Im Bereich des Austrittsflansches
10 ist aber nur die Außenschale 7 mit dem Austrittsflansch 10 fest verbunden,
während das zweite Sammelrohr 6 freitragend angeordnet ist.All exhaust pipes 1, 2 and 3 and the
Im Bereich der Motorflansche 4 sind dagegen neben der Außenschale 7
auch die Abgasrohre 1, 2 und 3 fest mit den Motorflanschen 4 verbunden.
Diese weisen hierfür eine sich in Abgasstromrichtung I erweiternde Stufung
11 auf, so dass eine Aufnahme entsteht, in welche die Abgasrohre 1,
2 und 3 zusammen mit der Außenschale 7 eingesteckt sind. Die Abgasdurchtrittsöffnungen
12 der Motorflansche 4 sind dabei jeweils bündig mit
den Innenwänden 21 der Abgasrohre 1, 2 und 3 ausgebildet.In the area of the motor flanges 4, on the other hand, there are 7 next to the outer shell
the exhaust pipes 1, 2 and 3 are firmly connected to the engine flanges 4.
For this purpose, these have a gradation widening in the exhaust gas flow direction I.
11 so that a receptacle is formed in which the exhaust pipes 1,
2 and 3 are inserted together with the outer shell 7. The
Sowohl die Lötverbindungen zwischen den Abgasrohren 1, 2 und 3 mit
den Motorflanschen 4 und der Außenschale 7 im Bereich der Motorflansche
4 als auch die Verbindung der Außenschale 7 mit dem Austrittsflansch
10 und die Verbindung zwischen den beiden Halbschalen 8 und 9
der Außenschale 7 sind als Lötverbindungen ausgebildet. Eine mögliche
Art der Lötverbindung an den Motorflanschen 4 ist jeweils in den Fig. 2, 3
und 4 dargestellt.Both the solder connections between the exhaust pipes 1, 2 and 3 with
the motor flanges 4 and the outer shell 7 in the area of the motor flanges
4 and the connection of the outer shell 7 with the outlet flange
10 and the connection between the two half-
Bei der in Fig. 2 dargestellten. Variante weist die Stufung 11 des Motorflansches
4 eine schräge Wand 13 auf, die in eine in Abgasstromrichtung I
verlaufende Wand 14 übergeht. Anschließend an die Wand 14 erweitert
sich die Abgasdurchtrittsöffnung 12 des Motorflansches 4 nochmals unter
Bildung einer weiteren schrägen Wand 15. Die Außenschale 7 und das
hier beispielhaft dargestellte Abgasrohr 1 sind so ausgebildet, dass sie
einerseits aneinander anliegen und andererseits an der Wand 14. Außerdem
ist die Außenschale 7 gegen die schräge Wand 13 gestoßen. Dabei
besteht zwischen der Außenschale 7 und dem Motorflansch 4 ein Presssitz,
durch welchen die genannten Teile kraftschlüssig gegeneinander
fixiert werden.The one shown in Fig. 2. Variant has the
Durch die schrägen Wände 13 und 15 sowie die Anordnung der Außenschale
7 und des Abgasrohres 1 werden zwei Aufnahmebereiche 16 für Lot
17 geschaffen, die alternativ oder kumulativ eingesetzt werden können.
Insbesondere kann bei diesem Ausführungsbeispiel das Lot 17 als Paste
aufgetragen werden. Durch anschließendes Erhitzen wird die Lötverbindung
hergestellt, wobei das Lot 17 aufgrund von Kapillarwirkung in den
Spalt 18 zwischen Motorflansch 4 und Außenschale 7 sowie in den Spalt
19 zwischen Außenschale 7 und Abgasrohr 1 gesogen wird. Dadurch
entsteht eine großflächige Verbindung, die zu einer hohen Haltbarkeit
führt.Through the sloping
Bei der in Fig. 3 dargestellten Variante ist die Stufung 11 des Motorflansches
4 gerade ausgebildet. Das heißt, die Wand 13 verläuft senkrecht zur
Wand 14. Durch zurück versetzte Anordnung des Abgasrohres 1 gegenüber
der Außenschale 7 kann auch bei dieser Variante eine Aufnahme 16
für Lot 17 an der Stufe 11 geschaffen werden. Die schräge Wand 15 ist
hier außerdem kleiner ausgebildet. Im übrigen stimmt die Ausgestaltung
mit der Ausgestaltung von Fig. 2 überein.In the variant shown in Fig. 3, the
Bei der in Fig. 4 dargestellten Variante ist der Motorflansch 4 im Bereich
seiner Abgasdurchtrittsöffnung 12 mit einer Nut 20 versehen, deren Öffnung
22 in Abgasstromrichtung I weist. In die Nut 20 sind das Abgasrohr
1 und die Außenschale 7 eingesteckt, wobei hier die Außenschale 7 gegenüber
dem Abgasrohr 1 zurück versetzt angeordnet ist, so dass wiederum
eine Aufnahme 16 für Lot 17 geschaffen wird. Eine weitere Aufnahme
16 ist auch hier durch eine schräge Wand 15 im Anschluss an die Wand
14 gebildet. Bevorzugt wird bei dieser Ausgestaltung ein Lotring verwendet.
Der übrige Aufbau und die Wirkungsweise ist wieder wie bei der
Variante von Fig. 2.In the variant shown in FIG. 4, the motor flange 4 is in the area
its exhaust passage opening 12 provided with a
Insgesamt wird so ein einfach herstellbarer Abgaskrümmer geschaffen,
der ohne Schweißverbindungen auskommt. Das Entstehen von Verunreinigungen
im Abgaskrümmer kann dadurch vermieden werden, so dass
keine Gefahr einer Beschädigung nachfolgender Bauelemente besteht.
Durch das Vorsehen eines engen Spaltes 18, 19 zwischen den zu verbindenden
Teilen 1, 4, 7, was durch einen abgestimmten Presssitz erreicht
werden kann, wird eine flächige Verteilung des Lotes 17 ermöglicht, und
dadurch eine feste und dauerhafte Verbindung. Durch den Presssitz
werden die Teile 1, 4, 7 außerdem vor dem Lötvorgang gegeneinander
fixiert.Overall, an exhaust manifold that is easy to manufacture is created,
that works without welded connections. The formation of impurities
in the exhaust manifold can be avoided, so that
there is no risk of damage to subsequent components.
By providing a
Ein derartiger Abgaskrümmer ist insbesondere als Dieselkrümmer einsetzbar,
da hier die Abgastemperaturen niedriger sind. Bei Verwendung
eines entsprechend höher schmelzenden Lotes ist aber auch die Verwendung
bei Benzinmotoren möglich. Eine Verwendung der Lötverbindungen
wird außerdem durch die versteckte Anordnung der Lötstellen durch den
Absatz 11 oder die Nut 20 im Motorflansch 4 erreicht. Eine möglichst
geringe Erwärmung der Lötstelle wird auch dadurch gefördert, dass die
Abgasdurchtrittsöffnung 12 des Motorflansches 4 bündig mit der Innenwand
21 der Abgasrohre 1, 2 und 3 ausgebildet ist. Such an exhaust manifold can be used in particular as a diesel manifold,
because the exhaust gas temperatures are lower here. Using
a correspondingly higher melting solder is also the use
possible with petrol engines. A use of the solder joints
is also due to the hidden arrangement of the solder joints by the
- 11
- Abgasrohrexhaust pipe
- 22
- Abgasrohrexhaust pipe
- 33
- Abgasrohrexhaust pipe
- 44
- Motorflanschmotor flange
- 55
- Sammelrohrmanifold
- 66
- Sammelrohrmanifold
- 77
- Außenschaleouter shell
- 88th
- Halbschalehalf shell
- 99
- Halbschalehalf shell
- 1010
- Austrittsflanschoutlet flange
- 1111
- Stufunggradation
- 1212
- AbgasdurchtrittsöffnungExhaust passage opening
- 1313
- Wandwall
- 1414
- Wandwall
- 1515
- Wandwall
- 1616
- Aufnahmeadmission
- 1717
- Lotsolder
- 1818
- Spaltgap
- 1919
- Spaltgap
- 2020
- Nutgroove
- 2121
- Innenwandinner wall
- 2222
- Öffnungopening
- II
- AbgasstromrichtungExhaust gas flow direction
Claims (10)
dadurch gekennzeichnet, dass die Verbindung zwischen den Abgasrohren (1, 2, 3) und den Motorflanschen (4) sowie gegebenenfalls zwischen den Abgasrohren (1, 2, 3) und der Außenschale (7) und/oder zwischen der Außenschale (7) und den Motorflanschen (4) als Lötverbindung ausgebildet ist.Exhaust manifold for an internal combustion engine with at least one exhaust pipe (1, 2, 3), possibly an outer shell (7) receiving the exhaust pipes (1, 2, 3) and at least one with the exhaust pipes (1, 2, 3) and / or with the Outer shell (7) connected engine flange (4) for connecting the exhaust manifold to the internal combustion engine,
characterized in that the connection between the exhaust pipes (1, 2, 3) and the engine flanges (4) and optionally between the exhaust pipes (1, 2, 3) and the outer shell (7) and / or between the outer shell (7) and the motor flanges (4) is designed as a soldered connection.
dadurch gekennzeichnet, dass zwischen den miteinander zu verlötenden Teilen ein auf Lötnaht abgestimmter Presssitz und/oder eine oder mehrere Heftschweißstellen vorhanden sind.Exhaust manifold according to claim 1,
characterized in that between the parts to be soldered to one another there is a press fit matched to the soldered seam and / or one or more tack welds.
dadurch gekennzeichnet, dass die Lötstellen an einer gegenüber dem Abgasstrom geschützten Stelle angeordnet sind, insbesondere auf einer dem Abgasstrom abgewandten Seite des Abgasrohres (1, 2, 3) oder in Abgasstromrichtung (I) betrachtet hinter einem Absatz (11) oder in einer Nut (20), deren Öffnung (22) in Abgasstromrichtung (I) weist.Exhaust manifold according to claim 1 or 2,
characterized in that the soldering points are arranged at a point protected from the exhaust gas flow, in particular on a side of the exhaust pipe (1, 2, 3) facing away from the exhaust gas flow or in the exhaust gas flow direction (I) viewed behind a shoulder (11) or in a groove ( 20), whose opening (22) points in the exhaust gas flow direction (I).
dadurch gekennzeichnet, dass die Durchtrittsöffnungen (12) der Motorflansche (4) für den Abgasstrom derart gestuft ausgebildet sind, dass sie sich in Strömungsrichtung (I) erweitern und dass die Abgasrohre (1, 2, 3) und/oder die Außenschale (7) jeweils gegen die Stufe (11) gestoßen angeordnet sind, wobei die Durchtrittsöffnungen (12) der Motorflansche (4) bevorzugt jeweils bündig mit den Innenwänden (21) der Abgasrohre (1, 2, 3) ausgebildet sind, oder dass die Motorflansche (4) um ihre Durchtrittsöffnung (12) herum jeweils eine Nut (20) aufweisen, in welche das Abgasrohr (1, 2, 3) und/oder die Außenschale (7) eingesteckt sind.Exhaust manifold according to one of the preceding claims,
characterized in that the passage openings (12) of the engine flanges (4) for the exhaust gas flow are designed so that they widen in the direction of flow (I) and that the exhaust pipes (1, 2, 3) and / or the outer shell (7) are arranged in each case pushed against the step (11), the passage openings (12) of the engine flanges (4) preferably being each flush with the inner walls (21) of the exhaust pipes (1, 2, 3), or that the engine flanges (4) have a groove (20) around their passage opening (12), into which the exhaust pipe (1, 2, 3) and / or the outer shell (7) are inserted.
dadurch gekennzeichnet, dass die Außenschale (7) aus zwei miteinander verlöteten Halbschalen (8, 9) besteht und/oder dass der Austrittsflansch (10) des Abgaskrümmers mit den Abgasrohren (1, 2, 3) und/oder mit der Außenschale (7) verlötet ist.Exhaust manifold according to one of the preceding claims,
characterized in that the outer shell (7) consists of two half-shells (8, 9) soldered together and / or in that the outlet flange (10) of the exhaust manifold with the exhaust pipes (1, 2, 3) and / or with the outer shell (7) is soldered.
dadurch gekennzeichnet, dass als Lot ein Kupfer-Lot, ein Kupfer-Nickel-Lot oder ein Hochtemperatur-Nickel-Lot verwendet ist. Exhaust manifold according to one of the preceding claims,
characterized in that a copper solder, a copper-nickel solder or a high-temperature nickel solder is used as the solder.
dadurch gekennzeichnet, dass die Abgasrohre (1, 2, 3) und die Motorflansche (4) sowie gegebenenfalls die Abgasrohre (1, 2, 3) und die Außenschale (7) und/oder die Außenschale und die Motorflansche (4) durch Löten miteinander verbunden werden.Method for producing an exhaust manifold for an internal combustion engine with at least one exhaust pipe (1, 2, 3), possibly an outer shell (7) receiving the exhaust pipes (1, 2, 3) and at least one with the exhaust pipes (1, 2, 3) and / or motor flange (4) connected to the outer shell (7) for connecting the exhaust manifold to the internal combustion engine,
characterized in that the exhaust pipes (1, 2, 3) and the motor flanges (4) and optionally the exhaust pipes (1, 2, 3) and the outer shell (7) and / or the outer shell and the motor flanges (4) by soldering together get connected.
dadurch gekennzeichnet, dass bei einer aus zwei Halbschalen (8, 9) bestehenden Außenschale (7) auch diese miteinander verlötet werden und/oder dass bei Abgaskrümmern mit Austrittsflansch (10) auch dieser mit den Abgasrohren (1, 2, 3) und/oder der Außenschale (7) durch Löten verbunden wird und/oder dass die miteinander zu verlötenden Teile (1, 4, 7) vor dem Löten gegeneinander kraftschlüssig fixiert oder geheftet werden, wobei jeweils insbesondere ein kleiner Lotspalt (18, 19) eingestellt wird.Method according to claim 7,
characterized in that, in the case of an outer shell (7) consisting of two half-shells (8, 9), these are also soldered to one another and / or in the case of exhaust manifolds with an outlet flange (10) this also with the exhaust pipes (1, 2, 3) and / or the outer shell (7) is connected by soldering and / or that the parts (1, 4, 7) to be soldered to one another are non-positively fixed or tacked to one another before soldering, a small solder gap (18, 19) in particular being set in each case.
dadurch gekennzeichnet, dass das innere Bauteil (1, 7) gegen das äußere Bauteil (7, 4) aufgeweitet wird, insbesondere mittels eines Aufweitdorns, und/oder dass ein Lotspalt (18, 19) kleiner als 0,2 mm, insbesondere zwischen ca. 0,02 mm und ca. 0,15 mm eingestellt wird.A method according to claim 8,
characterized in that the inner component (1, 7) is expanded against the outer component (7, 4), in particular by means of an expanding mandrel, and / or that a solder gap (18, 19) is less than 0.2 mm, in particular between approx 0.02 mm and approx. 0.15 mm is set.
dadurch gekennzeichnet, dass das Löten bei einer Temperatur von ca. 800°C bis ca. 1200°C, insbesondere bei ca. 1000°C erfolgt und/oder dass als Lot ein Kupfer-Lot, ein Kupfer-Nickel-Lot oder Hochtemperatur-Nickel-Lot verwendet wird und/oder dass die Lötverbindungen, insbesondere alle gemeinsam, in einem Lötofen ausgeführt werden.Method according to one of claims 7 to 9,
characterized in that the soldering is carried out at a temperature of approx. 800 ° C to approx. 1200 ° C, in particular at approx. 1000 ° C and / or that a solder is a copper solder, a copper-nickel solder or high-temperature solder. Nickel solder is used and / or that the solder connections, in particular all of them together, are carried out in a soldering furnace.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10218103A DE10218103A1 (en) | 2002-04-23 | 2002-04-23 | 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 |
| DE10218103 | 2002-04-23 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1365121A1 true EP1365121A1 (en) | 2003-11-26 |
| EP1365121B1 EP1365121B1 (en) | 2005-08-03 |
| EP1365121B2 EP1365121B2 (en) | 2010-11-03 |
Family
ID=29264785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03004679A Expired - Lifetime EP1365121B2 (en) | 2002-04-23 | 2003-03-03 | Manifold for an internal combustion engine and method for manufacturing such a manifold |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1365121B2 (en) |
| AT (1) | ATE301240T1 (en) |
| DE (2) | DE10218103A1 (en) |
| ES (1) | ES2243819T3 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2025441A1 (en) * | 2007-07-31 | 2009-02-18 | Gesenkschmiede Schneider GmbH | Method of brazing one metal component with a second metal component using in combination a mechanical jointing; corresponding metal component |
| US7975473B2 (en) | 2007-10-10 | 2011-07-12 | GM Global Technology Operations LLC | Exhaust manifold assembly |
| CN103306796A (en) * | 2012-03-08 | 2013-09-18 | 康奈可关精株式会社 | Exhaust manifold |
| EP2921670A2 (en) | 2014-03-20 | 2015-09-23 | Benteler Automobiltechnik GmbH | Exhaust manifold for an exhaust system of a combustion engine |
| US10352484B2 (en) | 2004-08-05 | 2019-07-16 | Faurecia Emissions Control Technologies Germany Gmbh | Exhaust system |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005025735B3 (en) * | 2005-06-04 | 2006-09-07 | Daimlerchrysler Ag | Welded joint of air gap insulated waste gas bend useful in automobile construction has connecting flange, inner part for guiding hot gases and outer jacket |
| DE102008017625B4 (en) | 2008-04-04 | 2013-05-16 | Tenneco Gmbh | Section for an exhaust system of an internal combustion engine and method for its production |
| DE102008047076A1 (en) | 2008-09-12 | 2010-03-18 | Behr Gmbh & Co. Kg | Soldering component useful in a heat exchanger, comprises a first component and a second component, which are joined to each other in the area of a joining connection with a joining fit |
| DE102009001542A1 (en) | 2009-03-13 | 2010-10-07 | Ford Global Technologies, LLC, Dearborn | Cylinder head for a naturally aspirated engine and use of such a cylinder head |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0178430A1 (en) * | 1984-09-19 | 1986-04-23 | Erhardt Bischoff GmbH & Co. KG Fabrik für Kraftfahrzeugteile | Exhaust manifold |
| 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 |
| DE19721092C1 (en) * | 1997-05-20 | 1998-09-03 | Bayerische Motoren Werke Ag | Exhaust fume conductor esp. for combustion engine |
| DE19827276A1 (en) * | 1997-10-02 | 1999-04-08 | Wolfgang Kleiner | Exhaust manifold flange for internal combustion engine |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB873135A (en) † | 1956-08-01 | 1961-07-19 | Marc Marie Paul Rene De La Fou | Improvements in or relating to engine exhaust systems |
| US4829944A (en) † | 1986-06-25 | 1989-05-16 | Showa Aluminum Corporation | Intake manifold and process for producing same |
| US4873823A (en) † | 1989-04-03 | 1989-10-17 | Mcinerney Incorporated | Air injection pipe assembly and method of making |
| DE29518189U1 (en) † | 1995-02-03 | 1996-01-18 | Loup, Rudolf, 73655 Plüderhausen | Exhaust manifold system |
| US5929262A (en) † | 1995-03-30 | 1999-07-27 | The United States Of America As Represented By The Department Of Health And Human Services | Method for preparing 17α-acetoxy-11β-(4-N, N-dimethylaminophyl)-19-Norpregna-4,9-diene-3, 20-dione, intermediates useful in the method, and methods for the preparation of such intermediates |
| JPH0988581A (en) † | 1995-09-28 | 1997-03-31 | Aisin Takaoka Ltd | Manufacture of exhaust manifold |
| DE19819946A1 (en) † | 1998-05-05 | 1999-11-11 | Boysen Friedrich Gmbh Co Kg | Exhaust manifold |
| DE19940140A1 (en) * | 1998-10-28 | 2000-05-11 | Wolfgang Kleiner | Exhaust manifold flange for an internal combustion engine |
| DE19916943A1 (en) * | 1998-10-28 | 2000-05-04 | Vukic Roland | Flange device for fitting exhaust pipe to engine block, with long gas guide channel of line unit running separately and spaced out from exhaust pipe |
| DE10031903C1 (en) † | 2000-06-30 | 2001-11-22 | Daimler Chrysler Ag | Exhaust for fuel burning machine, has some of gas directed into return pipe by inner shell |
-
2002
- 2002-04-23 DE DE10218103A patent/DE10218103A1/en not_active Withdrawn
-
2003
- 2003-03-03 EP EP03004679A patent/EP1365121B2/en not_active Expired - Lifetime
- 2003-03-03 ES ES03004679T patent/ES2243819T3/en not_active Expired - Lifetime
- 2003-03-03 AT AT03004679T patent/ATE301240T1/en not_active IP Right Cessation
- 2003-03-03 DE DE50300895T patent/DE50300895D1/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0178430A1 (en) * | 1984-09-19 | 1986-04-23 | Erhardt Bischoff GmbH & Co. KG Fabrik für Kraftfahrzeugteile | Exhaust manifold |
| 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 |
| DE19721092C1 (en) * | 1997-05-20 | 1998-09-03 | Bayerische Motoren Werke Ag | Exhaust fume conductor esp. for combustion engine |
| DE19827276A1 (en) * | 1997-10-02 | 1999-04-08 | Wolfgang Kleiner | Exhaust manifold flange for internal combustion engine |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10352484B2 (en) | 2004-08-05 | 2019-07-16 | Faurecia Emissions Control Technologies Germany Gmbh | Exhaust system |
| EP2025441A1 (en) * | 2007-07-31 | 2009-02-18 | Gesenkschmiede Schneider GmbH | Method of brazing one metal component with a second metal component using in combination a mechanical jointing; corresponding metal component |
| US7975473B2 (en) | 2007-10-10 | 2011-07-12 | GM Global Technology Operations LLC | Exhaust manifold assembly |
| CN101408125B (en) * | 2007-10-10 | 2012-06-13 | 通用汽车环球科技运作公司 | Exhaust manifold assembly |
| CN103306796A (en) * | 2012-03-08 | 2013-09-18 | 康奈可关精株式会社 | Exhaust manifold |
| EP2921670A2 (en) | 2014-03-20 | 2015-09-23 | Benteler Automobiltechnik GmbH | Exhaust manifold for an exhaust system of a combustion engine |
| DE102014103809A1 (en) * | 2014-03-20 | 2015-12-03 | Benteler Automobiltechnik Gmbh | Exhaust manifold for an exhaust system of an internal combustion engine |
| US9677453B2 (en) | 2014-03-20 | 2017-06-13 | Benteler Automobiltechnik Gmbh | Exhaust manifold for an exhaust system of a combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1365121B1 (en) | 2005-08-03 |
| ATE301240T1 (en) | 2005-08-15 |
| DE50300895D1 (en) | 2005-09-08 |
| EP1365121B2 (en) | 2010-11-03 |
| DE10218103A1 (en) | 2003-11-20 |
| ES2243819T3 (en) | 2005-12-01 |
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