EP0582985A1 - Collecteur d'échappement - Google Patents

Collecteur d'échappement Download PDF

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Publication number
EP0582985A1
EP0582985A1 EP93112708A EP93112708A EP0582985A1 EP 0582985 A1 EP0582985 A1 EP 0582985A1 EP 93112708 A EP93112708 A EP 93112708A EP 93112708 A EP93112708 A EP 93112708A EP 0582985 A1 EP0582985 A1 EP 0582985A1
Authority
EP
European Patent Office
Prior art keywords
exhaust manifold
shell
outer shell
manifold according
inner shell
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP93112708A
Other languages
German (de)
English (en)
Other versions
EP0582985B1 (fr
Inventor
Siegfried Dipl.-Ing. Wörner
Peter Dr. Ing. Zacke
Georg Dipl.-Ing. Wirth
Siegfried Pollak
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.)
Eberspaecher Climate Control Systems GmbH and Co KG
Original Assignee
J Eberspaecher 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
Application filed by J Eberspaecher GmbH and Co KG filed Critical J Eberspaecher GmbH and Co KG
Publication of EP0582985A1 publication Critical patent/EP0582985A1/fr
Application granted granted Critical
Publication of EP0582985B1 publication Critical patent/EP0582985B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • F01N13/10—Other arrangements or adaptations of exhaust conduits of exhaust manifolds
    • F01N13/102—Other arrangements or adaptations of exhaust conduits of exhaust manifolds having thermal insulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/14—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having thermal insulation
    • F01N13/141—Double-walled exhaust pipes or housings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1805—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
    • F01N13/1811—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body with means permitting relative movement, e.g. compensation of thermal expansion or vibration
    • 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
    • F01N2260/00—Exhaust treating devices having provisions not otherwise provided for
    • F01N2260/10—Exhaust treating devices having provisions not otherwise provided for for avoiding stress caused by expansions or contractions due to temperature variations

Definitions

  • the invention relates to an exhaust manifold for exhaust gas discharge from an internal combustion engine, in particular for vehicles.
  • Exhaust manifolds are generally used to transfer exhaust gases emerging from a cylinder arrangement of an internal combustion engine into an exhaust system.
  • the introduction of the hot exhaust gases into the exhaust manifold leads to a heating of the manifold and thus to a cooling of the exhaust gases that are carried into the exhaust system.
  • an exhaust gas inlet temperature that is too low an exhaust gas inlet temperature that is too high has a disadvantage for the effectiveness or the service life of a catalytic converter.
  • the invention is therefore based on the object of creating an exhaust manifold which on the one hand prevents excessive cooling of the exhaust gases during the transition from the cylinder arrangement to the exhaust system and on the other hand prevents the If necessary, sufficient cooling of the exhaust gases is ensured, thus limiting the temperature of the exhaust gases when entering the exhaust system or a catalyst installed therein.
  • the exhaust manifold according to the invention is double-walled and has an outer shell with at least one inner shell arranged therein, forming an intermediate space to the outer shell.
  • the space thus created enables air gap insulation between the inner shell and the outer shell.
  • the air gap considerably limits the possibility of heat transfer by conduction from the inner shell to the outer shell, so that heating of the outer shell with the resulting possibility of heat transfer to the air in the engine compartment is considerably reduced.
  • Both the inner shell and the outer shell consist of thin-walled sheet metal, the inner shell having a smaller wall thickness than the outer shell.
  • the outer shell takes on the load-bearing component function, whereas the inner shell serves to heat shield the outer shell. This takes advantage of the effect that when the annealing temperature is reached through the inner shell, considerable amounts of heat are transferred from the inner shell to the outer shell and thus ultimately into the interior of the engine.
  • the exhaust manifold according to the invention enables a common fastening flange on the exhaust gas inlet side and a common connecting flange on the exhaust gas outlet side Despite the double-walled structure, it is easy to use and therefore easy to install.
  • a plurality of inner shells are correspondingly provided in the outer shell and can be moved relative to one another.
  • This relative mobility can be achieved in that two adjacent inner shells are connected to each other via a sliding seat.
  • two adjacent inner shells with opposite ends are arranged in a sleeve-like manner in order to form the sliding fit.
  • the relative mobility of the individual inner shells achieved in this way prevents thermal stresses due to different temperature loads of individual inner shell regions from being transmitted to the fastening flange or the connecting flange and thus leading to tension in the flange regions.
  • the relative mobility enables a compensation of manufacturing tolerances in the individual inner shells, which leads to a reduction in the manufacturing costs of the exhaust manifold according to the invention.
  • intermediate elements in the sliding seat area between the ends of adjacent inner shells, which, depending on the design, seal the inner shells towards the space and / or allow an improvement in the relative mobility of the inner shells to one another.
  • intermediate elements which can be designed, for example, as a wire mesh, have proven to be advantageous.
  • a particularly easy manufacture of the inner shells is ensured if they are formed from several parts, for example two, which are connected to one another by welding in their connecting plane by means of a flanged seam.
  • the weld seam as a flanged seam, a particularly high seam strength can be achieved, in particular with regard to dynamic loading, for example caused by thermal stresses.
  • the welded connection by means of a flanged seam does not require the addition of additional weld metal.
  • the outer shells if they are formed from two shell halves welded together. In the areas lying between two adjacent inner shells, the shell halves of the outer shell can be welded flat to one another to ensure overall the torsional stiffness and thus ultimately the dimensional accuracy of the exhaust manifold according to the invention with respect to the connecting dimensions for mounting on the cylinder head.
  • a nozzle can be provided in the exhaust manifold according to the invention, which is inserted through the outer shell into an inner shell. It proves to be advantageous if the outer shell is in the area of the nozzle inlet and the inner shell are designed to abut one another in order to avoid warping on the relatively thin-walled outer shell and the inner shell.
  • At least two nozzles are provided, which, however, are only passed through the outer shell and open into the space between the inner shell and the outer shell.
  • This advantageous embodiment enables the above-mentioned use of the exhaust manifold according to the invention as a heat exchanger, it being possible for an air flow to be heated to be passed through a first connection piece into the intermediate space, counter to the exhaust gas flow direction through the intermediate space and out of the second connection piece.
  • the exhaust manifold could be used as a heat exchanger in particular if a targeted reduction in the exhaust gas temperature, for example to limit the catalyst inlet temperature, is to take place.
  • An embodiment of the exhaust manifold according to the features of claim 11 enables particularly efficient production.
  • insulation in the space between the inner shell or the inner shells and the outer shell which insulation can be formed from ceramic fibers, high-temperature glass fibers or microporous substances. This proves to be particularly useful when effective insulation is desired even at high exhaust gas temperatures at which the air gap insulation loses its effectiveness.
  • insulation in connection with the isolated space described it also proves to be particularly advantageous if the above-described, wire-knit sliding seats are realized, since this effectively protects the insulation against discharge due to the exhaust gas pulsation.
  • the further subclaims 13 to 16 relate to advantageous material selections for use in the outer shell and the inner shell or in the shells as well as advantageous wall thickness areas, the material selections and the wall thickness ranges taken on their own or in combination with one another the setting of a maximum temperature of the exhaust gases upon entry described above allow in the exhaust system or the catalytic converter.
  • the exhaust manifold shown in FIG. 1 has an inner manifold 13 consisting of a plurality of inner shells 10, 11, 12 which are merged into one another and is arranged in an outer shell 14.
  • the inner manifold 13 is connected to the outer shell 14 on the inlet side of the cylinder exhaust gases by means of a fastening flange 15 and on the outlet side of the cylinder exhaust gases by means of a connecting flange 16.
  • the mounting flange 15 is used to connect the exhaust manifold to a cylinder head, not shown here
  • the connecting flange 16 is used to connect the exhaust manifold to an exhaust system, also not shown here.
  • the inner elbow 13 formed from the inner shells 10, 11, 12 is arranged at a distance from the outer shell 14, with the exception of the connection regions with the outer shell 14 in the region of the fastening flange 15 or the connection flange 16. This creates an intermediate space 17 which isolates the inner manifold 13 from the outer shell and which counteracts heat transfer from the wall of the inner shell 10, 11, 12 to the outer shell 14.
  • the fastening flange 15, the outer shell 14 and the inner shell 10 or 11 or 12 are welded to one another in the transition cross sections to the individual cylinders of the cylinder head, not shown, on the exhaust gas inlet side.
  • the welded connection which is embodied here as an internal fillet weld 18, 19, 20, makes it possible in a particularly advantageous manner to connect the three components to be connected to one another in the respective transition cross section in one operation.
  • the inner shells 10, 11, 12 shown in FIG. 1 are designed differently according to their different arrangement in the outer shell 14.
  • the simplest design has the inner shell 12 which is furthest away from the connecting flange 16 and which is essentially formed from a 90 ° elbow.
  • the inner shell 12 is inserted on its exhaust gas inlet side with a sleeve end 21 that is reduced in outer diameter into a sleeve end 22 of the outer shell 14 that is reduced in both outer diameter and inner diameter, and together with the latter in a through opening 23 of the fastening flange 15.
  • the inner shell 12 On its exhaust gas outlet side, the inner shell 12 has a sleeve end 24, with which it is inserted into a sleeve end 25 of the inner shell 11 arranged adjacent.
  • the inner shell 11 has a T-shaped design and is inserted in the same way as the inner shell 12 on its exhaust gas inlet side together with the outer shell 14 with a sleeve end 52 into a through opening 26 in the fastening flange 15.
  • the sleeve ends 25, 27 provided in the transverse region of the T-shaped inner shell 11 serve, as has already been partially described above, for connection to the inner shells 10, 12 arranged adjacent to the inner shell 11.
  • the inner shell 10 arranged closest to the connecting flange 16 has the most complicated shape.
  • the inner shell 10 has a 90 ° elbow part 28, which with its sleeve ends 29, 30 on the one hand for connection to the outer shell 14 and reception in a through opening 31 of the fastening flange 15 (sleeve end 29), on the other hand for connection to the sleeve end of the inner shell 11 (sleeve end 30) is used.
  • the inner shell 10 has an elbow part 53 with a plane of curvature rotated approximately 90 ° with respect to the 90 ° elbow part 28.
  • the manifold part 53 has at its free, exhaust gas outlet end a sleeve end 32 which serves for connection to the connecting flange 16. (Fig. 3)
  • FIG. 2 shows possible alternative configurations of sliding seats 33, 34 (FIG. 1) formed by interlocking sleeve ends 24, 25 and 27, 30 of adjacent inner shells 12, 11 and 11, 10, respectively, which have a longitudinal displaceability of the adjacent inner shells 10, 11 or 11, 12 enable each other.
  • FIG. 2 shows a possible alternative embodiment of the exhaust manifold, in which instead of air insulation, insulation with insulating material 35 is provided in the space 17 formed between the inner shells 10, 11, 12 and the outer shell 14.
  • the representation according to FIG. 2 therefore contains four mutually independently executable variations in the design of the exhaust manifold according to the invention.
  • an air gap insulation is provided in the intermediate space 17 for the exhaust manifold and a design of the sliding seat 34 that is different from that in FIG. 1 the sleeve ends 27, 30 of the sliding seat 34 are formed in a stepped manner.
  • the wire mesh 36 take on a sealing function, so that essentially no exhaust gas can penetrate into the intermediate space 17 from the interior of the exhaust manifold delimited by the inner shells 10, 11, 12.
  • the wire mesh 36 creates elastic guide elements in the sliding seat 33, 34, which allow a low-friction and low-noise relative longitudinal movement of the sleeve ends 24, 25 and 27, 30 to each other.
  • Variation B shows a sliding seat 34 designed in accordance with variation A, but, in deviation from variation A, the intermediate space 17 is filled with an insulating material 35.
  • Variation C (shown using the example of the sliding seat 33) has a link-like design of the sliding seat, so that the sleeve end 24 is arranged engaging in the sleeve end 25 and also encompasses an outer sleeve 37 concentrically with the sleeve end 24 and connected to the sleeve end 25. The sleeve end 25 is thus received between the outer sleeve 37 and the sleeve end 24.
  • Variation D finally shows a variation of the sliding seat corresponding to variation C, the space 17 also being filled with insulating material 35.
  • the inner shells 10, 11, 12 are each composed of two shell halves 39, 40, as shown in FIGS. 2 and 6 using the inner shell 12.
  • the shell halves 39, 40 are welded to one another by means of a flanged seam 41, the welding being carried out by melting the flanges with the course of the weld metal in the drawing radius of the sheets forming the shell halves 39, 40 at the seam root. This creates a notch effect in the weld tearing of the weld seam avoided as a possible consequence.
  • the outer shell 14 is also formed, like an inner shell 10, 11 or 12, from shell halves 42, 43, which are connected to one another in the parting plane 38 by means of a short board weld 44.
  • Fig. 2 also shows mounting holes 44 which are used to attach the mounting flange 15 to the cylinder head, not shown.
  • a connector 45 is provided in the exhaust manifold according to FIG. 2, the function and arrangement of which in the exhaust manifold are explained in more detail below with reference to FIGS. 5 and 6.
  • FIGS. 3 and 4 show possibilities of connection with the inner shell 10 or the sleeve end 32 of the elbow part 53 of the inner shell 10 with the connecting flange 16.
  • the connection possibilities shown in FIGS. 3 and 4 naturally do not only apply to the exhaust gas outlet side of the exhaust manifold Connection with the connecting flange 16, but also represent possible alternatives for connecting the exhaust gas inlet-side sleeve ends 21, 52, 29 of the inner shells 10, 11, 12 to the fastening flange 15.
  • an intermediate sleeve 46 is provided, which has a cross section that is smaller than that of the exhaust gas inlet side on the exhaust gas outlet side.
  • the sleeve end 32 of the elbow part 31 from the inner shell 10 is inserted into the intermediate sleeve 46 on the exhaust gas inlet side.
  • the end of the intermediate sleeve 46 on the exhaust gas outlet side is inserted into a sleeve end 47 of the outer shell 14 on the exhaust gas outlet side and inserted together with the latter into the connecting flange 16.
  • With appropriate choice of fit for the fit of the outer diameter of the sleeve end 32 in the inner diameter of the intermediate sleeve 46 can again be provided for a sliding fit.
  • an outer fillet seam 48 or an inner flat seam 49 can be provided, as shown in FIG. 3 using two alternatives.
  • this can consist of a scale-resistant chrome / nickel steel, for example a material with the material numbers 1.4713, 1.4301 or 1.4541.
  • a weldable structural steel, such as St 52-3, or a weldable stainless steel, such as 1.4301 or 1.4541 is recommended.
  • FIG. 4 Another possibility, shown in FIG. 4, is to connect the sleeve end 32 to the outer shell 14 and, via the latter, to the connecting flange 16, omitting the intermediate sleeve 46.
  • the sleeve end 47 of the outer shell 14 is then inserted into the connecting flange 16 again in accordance with the exemplary embodiment shown in FIG. 3.
  • the permanent connection of the sleeve end 47 to the connecting flange 16 can also take place in accordance with the alternatives shown in FIG. 3.
  • a guide element 50 is provided which, for example, consists of a pressed wire mesh ring and at the same time provides a seal of the intermediate space 17 to the gas-flowed interior of the exhaust manifold.
  • FIG. 5 and 6 show the connector 45 already shown in FIG. 2, which enables exhaust gas to be removed from the interior of the exhaust manifold through which exhaust gas flows, here through the inner shell 12 and the outer shell 14, for example for exhaust gas recirculation.
  • the outer shell 14 is designed to bear against the inner shell 12 in the region of the insertion of the connecting piece 45 into the interior of the exhaust manifold. This is done by a corresponding indentation 51 of the outer shell 14 at the designated point.

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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)
EP93112708A 1992-08-12 1993-08-09 Collecteur d'échappement Expired - Lifetime EP0582985B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4226715A DE4226715A1 (de) 1992-08-12 1992-08-12 Abgaskrümmer
DE4226715 1992-08-12

Publications (2)

Publication Number Publication Date
EP0582985A1 true EP0582985A1 (fr) 1994-02-16
EP0582985B1 EP0582985B1 (fr) 1996-05-15

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EP93112708A Expired - Lifetime EP0582985B1 (fr) 1992-08-12 1993-08-09 Collecteur d'échappement

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EP (1) EP0582985B1 (fr)
DE (2) DE4226715A1 (fr)

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19505710A1 (de) * 1994-02-21 1995-08-24 Aisin Takaoka Ltd Auspuffkrümmer
EP0671551A1 (fr) * 1994-03-09 1995-09-13 Etablissement STREIT S.A. Collecteur d'échappement pour moteur de véhicules automobiles
EP0717179A1 (fr) * 1994-12-16 1996-06-19 Firma J. Eberspächer Collecteur d'échappement isolé par couche d'air
DE19511514C1 (de) * 1995-03-29 1996-08-01 Daimler Benz Ag Abgaskrümmer für eine Brennkraftmaschine
DE19546509A1 (de) * 1995-12-13 1997-06-19 Zeuna Staerker Kg Abgaskrümmer sowie Verfahren zu seiner Herstellung
EP0765994B1 (fr) * 1995-09-28 1998-01-14 Benteler Ag Collecteur d'échappement
FR2751376A1 (fr) * 1996-07-17 1998-01-23 Daimler Benz Ag Tubulure coudee de gaz d'echappement pour le guidage des gaz d'echappement d'un moteur a combustion interne
FR2757565A1 (fr) * 1996-12-19 1998-06-26 Ecia Equip Composants Ind Auto Collecteur d'echappement a conduites enveloppees
DE19850763C1 (de) * 1998-11-04 2000-04-13 Daimler Chrysler Ag Verfahren zum Zusammenschweißen von runden, zunächst lose ineinandergesteckten Teilen mittels eines energiereichen Strahles
EP0999351A1 (fr) 1998-11-05 2000-05-10 Zeuna-Stärker Gmbh & Co Kg Collecteur d'échappement à double paroi d' un moteur diesel à plusieurs cylindres
US6343417B1 (en) 1997-11-28 2002-02-05 Daimler-Benz Aktiengesellschaft Process of manufacturing an air-gap-insulating exhaust elbow of a vehicle exhaust system
US6349468B1 (en) 1997-11-28 2002-02-26 Daimlerchrysler Ag Air gap insulated exhaust pipe with branch pipe stub and method of manufacturing same
EP1229221A1 (fr) * 2001-02-01 2002-08-07 Benteler Automobiltechnik GmbH & Co. KG Collecteur d'échappement avec bride de fixation fritté comprenant un conduit pour une recirculation des gaz d'échappement ou une injection d'air secondaire
EP1245802A1 (fr) * 2001-03-28 2002-10-02 Calsonic Kansei Corporation Collecteur d'échappement à double paroi
EP1041255A3 (fr) * 1999-04-01 2003-04-02 Mascotech Tubular Products, Inc. Collecteur d'échappement estampé pour moteurs de véhicule
WO2003056146A3 (fr) * 2001-12-28 2003-10-02 Eberspaecher J Gmbh & Co Element de raccordement
EP1367234A1 (fr) * 2002-05-28 2003-12-03 Benteler Automobiltechnik GmbH Conduit de gaz d'échappement à paroi double avec une bride
EP1503133A2 (fr) 2003-07-29 2005-02-02 G + H Isolite GmbH Element isolé thermiquement
EP1522687A2 (fr) * 2003-10-07 2005-04-13 Friedrich Boysen GmbH & Co. KG Collecteur à couche d'air
EP1329607A3 (fr) * 2002-01-10 2005-11-16 Benteler Automobiltechnik GmbH & Co. KG Dispositif pour guider les gaz d'échappement d'un moteur à combustion interne
FR2875845A1 (fr) * 2004-09-29 2006-03-31 Renault Sas Collecteur d'echappement a double paroi
WO2006035188A1 (fr) * 2004-09-29 2006-04-06 Renault S.A.S. Collecteur d'echappement a double paroi
EP1548245A3 (fr) * 2003-12-23 2006-08-16 DaimlerChrysler AG Collecteur d'échappement
DE19532068B4 (de) * 1995-08-31 2006-08-17 Daimlerchrysler Ag Abgaskrümmer
FR2886338A1 (fr) * 2005-05-24 2006-12-01 Renault Sas Collecteur d'echappement a double paroi pour moteur a combustion interne
US7272927B2 (en) 2003-11-07 2007-09-25 Heinrich Gillet Gmbh Air gap-insulated exhaust manifold for internal combustion engines
DE102016116995A1 (de) 2016-09-09 2018-03-15 Eberspächer Exhaust Technology GmbH & Co. KG Abgasanlage mit verbesserter thermischer Belastbarkeit

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19952648C2 (de) * 1998-10-23 2001-12-20 Leistritz Abgastech Luftspaltisolierter Schalenkrümmer
DE19909934C1 (de) * 1999-03-06 2001-01-11 Daimler Chrysler Ag Luftspaltisolierter Abgaskrümmer zur Abgasführung aus einer Brennkraftmaschine
DE10031903C1 (de) * 2000-06-30 2001-11-22 Daimler Chrysler Ag Abgaskrümmer für eine Brennkraftmaschine
DE10107040A1 (de) * 2001-02-17 2002-08-29 Zeuna Staerker Kg Kraftfahrzeug-Schalldämpfer
DE102005025735B3 (de) * 2005-06-04 2006-09-07 Daimlerchrysler Ag Schweißverbund

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0232953A1 (fr) * 1986-02-10 1987-08-19 General Motors Corporation Assemblage de conduites d'échappement protégées et soumises à de faibles contraintes

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3581494A (en) * 1970-01-02 1971-06-01 Arvin Ind Inc Exhaust gas manifold
DE2137699A1 (de) * 1971-07-28 1973-02-08 Boysen Friedrich Kg Mit einem isoliermantel versehene rohrleitung fuer heisse medien, insbesondere thermischer reaktor in abgasleitungen von brennkraftmaschinen od.dgl

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0232953A1 (fr) * 1986-02-10 1987-08-19 General Motors Corporation Assemblage de conduites d'échappement protégées et soumises à de faibles contraintes

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
ABTHOFF U.A.: "Der neue Zwölfzylinder-Motor für die neue Mercedes-Menz S-Klasse", MTZ MOTORTECHNISCHE ZEITSCHRIFT, vol. 52, no. 4, April 1991 (1991-04-01), STUTTGART DE, pages 156 - 168 *
NORDING: "Neuartiges Konzept für isolierte Abgaskrümmer, Vorrohre und Katalysatoren", MTZ MOTORTECHNISCHE ZEITSCHRIFT, vol. 52, no. 4, April 1991 (1991-04-01), STUTTGART, pages 206 - 210 *

Cited By (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19505710A1 (de) * 1994-02-21 1995-08-24 Aisin Takaoka Ltd Auspuffkrümmer
DE19505710C2 (de) * 1994-02-21 2002-10-17 Aisin Takaoka Ltd Auspuffkrümmer
EP0671551A1 (fr) * 1994-03-09 1995-09-13 Etablissement STREIT S.A. Collecteur d'échappement pour moteur de véhicules automobiles
FR2717224A1 (fr) * 1994-03-09 1995-09-15 Streit Sa Ets Collecteur d'échappement pour moteur de véhicules automobiles.
EP0717179A1 (fr) * 1994-12-16 1996-06-19 Firma J. Eberspächer Collecteur d'échappement isolé par couche d'air
DE19511514C1 (de) * 1995-03-29 1996-08-01 Daimler Benz Ag Abgaskrümmer für eine Brennkraftmaschine
EP0735251A1 (fr) * 1995-03-29 1996-10-02 Mercedes-Benz Ag Collecteur d'échappement pour un moteur à combustion interne
US5682741A (en) * 1995-03-29 1997-11-04 Mercedes-Benz Ag Exhaust manifold for an internal combustion engine
DE19532068B4 (de) * 1995-08-31 2006-08-17 Daimlerchrysler Ag Abgaskrümmer
EP0765994B1 (fr) * 1995-09-28 1998-01-14 Benteler Ag Collecteur d'échappement
DE19546509A1 (de) * 1995-12-13 1997-06-19 Zeuna Staerker Kg Abgaskrümmer sowie Verfahren zu seiner Herstellung
DE19628798A1 (de) * 1996-07-17 1998-01-29 Daimler Benz Ag Abgaskrümmer zur Abgasführung aus einer Brennkraftmaschine
US5784882A (en) * 1996-07-17 1998-07-28 Daimler-Benz Ag Exhaust manifold for conducting exhaust gas out of an internal combustion engine
DE19628798B4 (de) * 1996-07-17 2008-04-17 Daimler Ag Abgaskrümmer zur Abgasführung aus einer Brennkraftmaschine
FR2751376A1 (fr) * 1996-07-17 1998-01-23 Daimler Benz Ag Tubulure coudee de gaz d'echappement pour le guidage des gaz d'echappement d'un moteur a combustion interne
FR2757565A1 (fr) * 1996-12-19 1998-06-26 Ecia Equip Composants Ind Auto Collecteur d'echappement a conduites enveloppees
US6519851B2 (en) 1997-11-28 2003-02-18 Daimlerchrysler Ag Air gap insulated exhaust pipe with branch pipe stub and method of manufacturing same
US6349468B1 (en) 1997-11-28 2002-02-26 Daimlerchrysler Ag Air gap insulated exhaust pipe with branch pipe stub and method of manufacturing same
US6343417B1 (en) 1997-11-28 2002-02-05 Daimler-Benz Aktiengesellschaft Process of manufacturing an air-gap-insulating exhaust elbow of a vehicle exhaust system
US6539764B2 (en) * 1997-11-28 2003-04-01 Daimlerchrysler Ag Air gap insulated exhaust pipe with branch pipe stub and method of manufacturing same
DE19850763C1 (de) * 1998-11-04 2000-04-13 Daimler Chrysler Ag Verfahren zum Zusammenschweißen von runden, zunächst lose ineinandergesteckten Teilen mittels eines energiereichen Strahles
EP0999351A1 (fr) 1998-11-05 2000-05-10 Zeuna-Stärker Gmbh & Co Kg Collecteur d'échappement à double paroi d' un moteur diesel à plusieurs cylindres
US6651425B2 (en) 1999-04-01 2003-11-25 Metaldyne Tubular Products, Inc. Stamped exhausts manifold for vehicle engines
EP1041255A3 (fr) * 1999-04-01 2003-04-02 Mascotech Tubular Products, Inc. Collecteur d'échappement estampé pour moteurs de véhicule
EP1229221A1 (fr) * 2001-02-01 2002-08-07 Benteler Automobiltechnik GmbH & Co. KG Collecteur d'échappement avec bride de fixation fritté comprenant un conduit pour une recirculation des gaz d'échappement ou une injection d'air secondaire
US6625979B2 (en) 2001-03-28 2003-09-30 Calsonic Kansei Corporation Double pipe exhaust manifold
EP1245802A1 (fr) * 2001-03-28 2002-10-02 Calsonic Kansei Corporation Collecteur d'échappement à double paroi
WO2003056146A3 (fr) * 2001-12-28 2003-10-02 Eberspaecher J Gmbh & Co Element de raccordement
EP1329607A3 (fr) * 2002-01-10 2005-11-16 Benteler Automobiltechnik GmbH & Co. KG Dispositif pour guider les gaz d'échappement d'un moteur à combustion interne
EP1367234A1 (fr) * 2002-05-28 2003-12-03 Benteler Automobiltechnik GmbH Conduit de gaz d'échappement à paroi double avec une bride
EP1503133A2 (fr) 2003-07-29 2005-02-02 G + H Isolite GmbH Element isolé thermiquement
EP1503133A3 (fr) * 2003-07-29 2006-04-19 G + H Isolite GmbH Element isolé thermiquement
JP2005113910A (ja) * 2003-10-07 2005-04-28 Friedrich Boysen Gmbh & Co Kg 空隙部を備えたマニホールド
DE10346552A1 (de) * 2003-10-07 2005-06-30 Friedrich Boysen Gmbh & Co. Kg Luftspaltkrümmer
EP1522687A2 (fr) * 2003-10-07 2005-04-13 Friedrich Boysen GmbH & Co. KG Collecteur à couche d'air
EP1522687B1 (fr) * 2003-10-07 2010-05-05 Friedrich Boysen GmbH & Co. KG Collecteur à couche d'air
US7272927B2 (en) 2003-11-07 2007-09-25 Heinrich Gillet Gmbh Air gap-insulated exhaust manifold for internal combustion engines
EP1548245A3 (fr) * 2003-12-23 2006-08-16 DaimlerChrysler AG Collecteur d'échappement
WO2006035188A1 (fr) * 2004-09-29 2006-04-06 Renault S.A.S. Collecteur d'echappement a double paroi
FR2875845A1 (fr) * 2004-09-29 2006-03-31 Renault Sas Collecteur d'echappement a double paroi
FR2886338A1 (fr) * 2005-05-24 2006-12-01 Renault Sas Collecteur d'echappement a double paroi pour moteur a combustion interne
DE102016116995A1 (de) 2016-09-09 2018-03-15 Eberspächer Exhaust Technology GmbH & Co. KG Abgasanlage mit verbesserter thermischer Belastbarkeit

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DE4226715A1 (de) 1994-02-17
DE59302582D1 (de) 1996-06-20
EP0582985B1 (fr) 1996-05-15

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