EP1365121B1 - Collecteur d'échappement pour un moteur à combustion interne et et méthode de fabrication d'un tel collecteur d'échappement - Google Patents

Collecteur d'échappement pour un moteur à combustion interne et et méthode de fabrication d'un tel collecteur d'échappement Download PDF

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Publication number
EP1365121B1
EP1365121B1 EP03004679A EP03004679A EP1365121B1 EP 1365121 B1 EP1365121 B1 EP 1365121B1 EP 03004679 A EP03004679 A EP 03004679A EP 03004679 A EP03004679 A EP 03004679A EP 1365121 B1 EP1365121 B1 EP 1365121B1
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EP
European Patent Office
Prior art keywords
exhaust
outer shell
braze
manifold
exhaust pipes
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP03004679A
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German (de)
English (en)
Other versions
EP1365121A1 (fr
EP1365121B2 (fr
Inventor
Rainer Diez
Friedrich Dipl.-Ing. Hartmann (Fh)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Friedrich Boysen GmbH and Co KG
Original Assignee
Friedrich Boysen GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Application filed by Friedrich Boysen GmbH and Co KG filed Critical Friedrich Boysen GmbH and Co KG
Publication of EP1365121A1 publication Critical patent/EP1365121A1/fr
Application granted granted Critical
Publication of EP1365121B1 publication Critical patent/EP1365121B1/fr
Publication of EP1365121B2 publication Critical patent/EP1365121B2/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • F01N13/10—Other arrangements or adaptations of exhaust conduits of exhaust manifolds
    • 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, one of the exhaust pipes receiving outer shell and at least one with the exhaust pipes and motor flange connected to the outer shell for connecting the Exhaust manifold with the internal combustion engine.
  • Such exhaust manifolds have between exhaust pipe and engine flange as well as between outer shell and engine flange and / or between outer shell and exhaust pipe on a welded connection. This occurs Problem on that foreign particles such as spatter in the exhaust manifold remain, later in the operation of subsequent components such as catalysts and turbocharger damage. To avoid this, Such exhaust manifolds are sometimes also with laser welded joints produced. But this is expensive and requires a relatively large Effort for the exact production of the components to be joined together.
  • DE-C-197 21 092 relates to a single-walled exhaust manifold, in which the exhaust pipes are welded into nozzles, which in turn with are connected to the motor flange.
  • Another single-walled exhaust manifold is known from DE-A-198 27 276. Again, the exhaust pipes connected to exhaust nozzles, which in turn connected to the motor flange are.
  • EP-A-0 178 430 also shows a single-walled one Exhaust manifold with pipe socket. The neck can also be on be molded on the motor flange.
  • the invention is based on the object, an exhaust manifold of the above specify the type and a method of producing it, which do not have the above-mentioned disadvantages. In particular, should Foreign particles are avoided in the manifold.
  • connection between the Exhaust pipes and the engine flanges and between the exhaust pipes and the outer shell and / or between the outer shell and the engine flanges is designed as a solder joint.
  • the soldering process can be characterized in that between the parts to be soldered on a solder gap coordinated interference fit is available. On the one hand, this can make a close Soldering can be achieved, resulting in a relatively large distribution of the Lots leads.
  • the connection between the parts is not like that when welding, linear but flat, reducing the strength is increased.
  • the parts to be soldered together thereby securely positioned until the soldering is completed.
  • the solder joints arranged at a protected position relative to the exhaust gas stream.
  • the solder joints can be on a side facing away from the exhaust stream Side of the exhaust pipe or viewed in the exhaust gas flow direction behind a Be arranged paragraph.
  • the solder joints are thereby in operation the exhaust system does not flow directly from the exhaust stream and remain Accordingly, relatively cool. This makes it possible, even at relative Hot exhaust gases to use a solder joint at exhaust manifolds.
  • the solder joints in arranged a groove whose opening points away from Abgasström.
  • the Soldering can be better protected from the exhaust stream and kept cool accordingly.
  • Such a design is especially in engines with high exhaust temperatures such as gasoline engines advantageous.
  • Another way to solder joints against the exhaust stream too protect consists of the passage openings of the motor flanges for the exhaust stream in such a stepped form that they are in the flow direction expand, and the exhaust pipes and / or the outer shell against to arrange the step pushed. As a result, the assembly is simplified.
  • a particularly advantageous embodiment of the invention also results then, when the motor flanges around their passages around each have a groove into which the exhaust pipes and / or the outer shell the exhaust pipes are inserted.
  • the solder can thus be good the exhaust gas are protected and the assembly is very simple possible.
  • the outer shell of the exhaust manifold according to the invention exists in known and advantageously preferred from two half-shells. According to the invention, these two half-shells with each other be soldered. This can also at this point a welding process and so that the formation of impurities can be avoided. moreover The compounds can be produced in a single operation become.
  • outlet flange of the exhaust manifold is preferred with the Exhaust pipes and / or the outer shell soldered. As before, this will the emergence of impurities avoided and the simultaneous Production of all compounds in a single operation allows.
  • solder for example, a copper solder with a melting temperature of about 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 about 1000 ° C can be used.
  • the Exhaust pipes and the motor flange and / or the outer shell by soldering connected with each other.
  • the two half-shells the outer shell with each other and the exhaust pipes and / or the Outer shell preferably soldered to the outlet flange. This can advantageously together in a single operation in one Soldering oven done.
  • the parts to be soldered together before soldering in particular firmly fixed against each other. This can simplify installation and a firm and tight soldering can be ensured.
  • the solder in the gap is preferably set the smallest possible Lotspalt.
  • This can be the inner component expanded at a Lotstelle 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 about 0.02 and 0.015 mm. These values are especially good for good soldering suitable exposed.
  • the soldering temperature is preferably between 1000 ° C and 1200 ° C, depending to Lot.
  • a copper solder for example, it is between approx. 1100 ° C and 1150 ° C, with a copper-nickel solder about 1120 ° C and at a high temperature nickel solder about 1040 ° C.
  • the soldering becomes common In a controlled atmosphere, in particular hydrogen, or in vacuo carried out.
  • the exhaust manifold shown in Fig. 1 comprises three exhaust pipes 1, 2 and 3, which are connected at one end to a respective motor flange 4 are.
  • the other ends of the exhaust pipes 1 and 2 are in the one Inserted end of a manifold 5, the other end together with the other end of the third exhaust pipe 3 in the one end of a another collection tube 6 is inserted.
  • All exhaust pipes 1, 2 and 3 and the manifolds 5 and 6 are in one Housed outer shell 7, 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 in the motor flanges 4 and together with the second manifold 6 in an outlet flange 10 is inserted.
  • the outer shell 7 is fixedly connected to the outlet flange 10, while the second manifold 6 is arranged cantilevered.
  • the exhaust pipes 1, 2 and 3 fixedly connected to the motor flanges 4.
  • they 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 passages 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 joints between the exhaust pipes 1, 2 and 3 with the motor flanges 4 and the outer shell 7 in the region 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 formed as solder joints.
  • a possible Type of solder joint on the motor flanges 4 is shown in FIGS. 2, 3 and FIG. 4.
  • Variant has the gradation 11 of the motor flange 4 an inclined wall 13, which in an exhaust gas flow direction I extending wall 14 passes. Then extended to the wall 14 the exhaust passage opening 12 of the motor flange 4 again under Forming another inclined wall 15.
  • the outer shell 7 and the Exhaust pipe 1 illustrated here by way of example are designed such that they on the one hand abut each other and on the other hand on the wall 14. In addition the outer shell 7 has hit against the sloping wall 13. there exists between the outer shell 7 and the motor flange 4 a press fit, by which the said parts frictionally against each other be fixed.
  • solder 17 As a paste be applied.
  • the solder joint made, the Lot 17 due to capillary action in the Gap 18 between the motor flange 4 and outer shell 7 and in the gap 19 between outer shell 7 and exhaust pipe 1 is sucked. Thereby creates a large-scale connection, resulting in a high durability leads.
  • the gradation 11 of the motor flange 4 just trained. That is, the wall 13 is perpendicular to the Wall 14.
  • the sloping wall 15 is also smaller here. Otherwise, the design is right with the embodiment of FIG. 2 match.
  • the motor flange 4 is in the range its exhaust passage opening 12 provided with a groove 20, the opening 22 in the exhaust gas flow direction I points.
  • the groove 20 are the exhaust pipe 1 and the outer shell 7 is inserted, in which case the outer shell 7 opposite the exhaust pipe 1 is arranged offset back, so that in turn a receptacle 16 for Lot 17 is created.
  • Another shot 16 is also here by an inclined wall 15 following the wall 14 formed.
  • a solder ring is used. The rest of the structure and the effect is again as in the Variant of FIG. 2.
  • Such an exhaust manifold can be used in particular as a diesel manifold, because the exhaust gas temperatures are lower here.
  • Using but 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 possible Low heating of the solder joint is also promoted by the fact that the Exhaust passage opening 12 of the motor flange 4 flush with the inner wall 21 of the exhaust pipes 1, 2 and 3 is formed.

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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)

Claims (10)

  1. Collecteur d'échappement pour moteur à combustion interne comportant au moins un conduit d'échappement (1, 2, 3), une coque extérieure (7) où sont logés les conduits d'échappement (1, 2, 3) et au moins une bride de moteur (4) reliée aux conduits d'échappement (1, 2, 3) et à la coque extérieure (7) et servant à relier le collecteur d'échappement au moteur à combustion interne,
       caractérisé en ce que la liaison entre les conduits d'échappement (1, 2, 3) et les brides de moteur (4) ainsi qu'entre les conduits d'échappement (1, 2, 3) et la coque extérieure (7) et/ou entre la coque extérieure (7) et les brides de moteur (4) est réalisée sous forme de liaison par brasage.
  2. Collecteur d'échappement selon la revendication 1,
       caractérisé en ce qu'il y a, entre les pièces à braser ensemble, un ajustement serré adapté au joint de brasage et/ou un ou plusieurs points de soudure par points.
  3. Collecteur d'échappement selon la revendication 1 ou 2,
       caractérisé en ce que les points de soudure sont disposés à un endroit protégé vis-à-vis du courant de gaz d'échappement, notamment sur un côté du conduit d'échappement (1, 2, 3) détourné du courant de gaz d'échappement ou, si l'on considère le sens d'écoulement des gaz d'échappement (I), derrière un épaulement (11) ou dans une rainure (20) dont l'orifice (22) est orienté dans le sens d'écoulement des gaz d'échappement (I).
  4. Collecteur d'échappement selon l'une des revendications précédentes,
       caractérisé en ce que les orifices de passage (12) des brides de moteur (4) destinés au courant de gaz d'échappement sont réalisés en étant étagés de sorte qu'ils s'élargissent dans le sens d'écoulement (I) et en ce que les conduits d'échappement (1, 2, 3) et/ou la coque extérieure (7) sont chaque fois disposés de manière à buter contre l'échelon (11), les orifices de passage (12) des brides de moteur (4) étant de préférence chaque fois réalisés de manière jointive avec les cloisons intérieures (21) des conduits d'échappement (1, 2, 3), ou en ce que les brides de moteur (4) comportent chaque fois, tout autour de leur orifice de passage (12), une rainure (20) dans laquelle le conduit d'échappement (1, 2, 3) et/ou la coque extérieure (7) sont emboítés.
  5. Collecteur d'échappement selon l'une des revendications précédentes,
       caractérisé en ce que la coque extérieure (7) est constituée de deux demi-coques (8, 9) brasées ensemble et/ou en ce que la bride de sortie (10) du collecteur d'échappement est brasée aux conduits d'échappement (1, 2, 3) et/ou à la coque extérieure (7).
  6. Collecteur d'échappement selon l'une des revendications précédentes,
       caractérisé en ce que l'on utilise comme métal d'apport de brasage un cuivre de brasage, un cupro-nickel de brasage ou un nickel de brasage haute température.
  7. Procédé de fabrication d'un collecteur d'échappement pour moteur à combustion interne comportant au moins un conduit d'échappement (1, 2, 3), une coque extérieure (7) où sont logés les conduits d'échappement (1, 2, 3) et au moins une bride de moteur (4) reliée aux conduits d'échappement (1, 2, 3) et à la coque extérieure (7) et servant à relier le collecteur d'échappement au moteur à combustion interne,
       caractérisé en ce que les conduits d'échappement (1, 2, 3) et les brides de moteur (4) ainsi que les conduits d'échappement (1, 2, 3) et la coque extérieure (7) et/ou la coque extérieure (7) et les brides de moteur (4) sont reliés ensemble par brasage.
  8. Procédé selon la revendication 7,
       caractérisé en ce que, dans le cas d'une coque extérieure (7) constituée de deux demi-coques (8, 9), celles-ci sont également brasées ensemble, et/ou en ce que, dans le cas de collecteurs d'échappement avec bride de sortie (10), on relie également celle-ci par brasage aux conduits d'échappement (1, 2, 3) et/ou à la coque extérieure (7), et/ou en ce que les pièces à braser ensemble (1, 4, 7) sont fixées ou attachées les unes contre les autres par adhérence avant le brasage, auquel cas, notamment, on ménage chaque fois une petite fente (18, 19) destinée au métal de brasage.
  9. Procédé selon la revendication 8,
       caractérisé en ce que la pièce intérieure (1, 7) est élargie contre la pièce extérieure (7, 4), notamment au moyen d'un mandrin d'évasement, et/ou en ce que l'on ménage une fente (18, 19) destinée au métal de brasage qui est inférieure à 0,2 mm et est notamment comprise entre environ 0,02 mm et environ 0,15 mm.
  10. Procédé selon l'une des revendications 7 à 9,
       caractérisé en ce que le brasage a lieu à une température allant d'environ 800°C à environ 1200°C, notamment d'environ 1000°C, et/ou en ce que l'on utilise, en tant que métal d'apport de brasage, un cuivre de brasage, un cupro-nickel de brasage ou nickel de brasage haute température, et/ou en ce que les liaisons par brasage sont réalisées, notamment toutes ensemble, dans un four à braser.
EP03004679A 2002-04-23 2003-03-03 Collecteur d'échappement pour un moteur à combustion interne et et méthode de fabrication d'un tel collecteur d'échappement Expired - Lifetime EP1365121B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10218103A DE10218103A1 (de) 2002-04-23 2002-04-23 Abgaskrümmer für einen Verbrennungsmotor und Verfahren zur Herstellung eines solchen Abgaskrümmers
DE10218103 2002-04-23

Publications (3)

Publication Number Publication Date
EP1365121A1 EP1365121A1 (fr) 2003-11-26
EP1365121B1 true EP1365121B1 (fr) 2005-08-03
EP1365121B2 EP1365121B2 (fr) 2010-11-03

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ID=29264785

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EP03004679A Expired - Lifetime EP1365121B2 (fr) 2002-04-23 2003-03-03 Collecteur d'échappement pour un moteur à combustion interne et et méthode de fabrication d'un tel collecteur d'échappement

Country Status (4)

Country Link
EP (1) EP1365121B2 (fr)
AT (1) ATE301240T1 (fr)
DE (2) DE10218103A1 (fr)
ES (1) ES2243819T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008047076A1 (de) 2008-09-12 2010-03-18 Behr Gmbh & Co. Kg Fügebauteil und Wärmetauscher

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US10352484B2 (en) 2004-08-05 2019-07-16 Faurecia Emissions Control Technologies Germany Gmbh Exhaust system
DE102005025735B3 (de) * 2005-06-04 2006-09-07 Daimlerchrysler Ag Schweißverbund
DE102007035849A1 (de) * 2007-07-31 2009-02-05 Gesenkschmiede Schneider Gmbh Verfahren zum Lötverbinden eines ersten Metallteils mit einem zweiten Metallteil und so hergestelltes gelötetes Metallbauteil
US7975473B2 (en) 2007-10-10 2011-07-12 GM Global Technology Operations LLC Exhaust manifold assembly
DE102008017625B4 (de) 2008-04-04 2013-05-16 Tenneco Gmbh Teilstück für eine Abgasanlage eines Verbrennungsmotors und Verfahren zu seiner Herstellung
DE102009001542A1 (de) 2009-03-13 2010-10-07 Ford Global Technologies, LLC, Dearborn Zylinderkopf für einen Saugmotor und Verwendung eines derartigen Zylinderkopfes
JP2013185498A (ja) * 2012-03-08 2013-09-19 Calsonic Kansei Corp エキゾースト・マニホールド
DE102014103809A1 (de) 2014-03-20 2015-12-03 Benteler Automobiltechnik Gmbh Abgaskrümmer für eine Abgasanlage eines Verbrennungsmotors

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Publication number Priority date Publication date Assignee Title
DE102008047076A1 (de) 2008-09-12 2010-03-18 Behr Gmbh & Co. Kg Fügebauteil und Wärmetauscher

Also Published As

Publication number Publication date
DE10218103A1 (de) 2003-11-20
EP1365121A1 (fr) 2003-11-26
EP1365121B2 (fr) 2010-11-03
ES2243819T3 (es) 2005-12-01
ATE301240T1 (de) 2005-08-15
DE50300895D1 (de) 2005-09-08

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