EP0171624A1 - Conduit d'échappement pour moteurs de véhicule - Google Patents

Conduit d'échappement pour moteurs de véhicule Download PDF

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Publication number
EP0171624A1
EP0171624A1 EP85108816A EP85108816A EP0171624A1 EP 0171624 A1 EP0171624 A1 EP 0171624A1 EP 85108816 A EP85108816 A EP 85108816A EP 85108816 A EP85108816 A EP 85108816A EP 0171624 A1 EP0171624 A1 EP 0171624A1
Authority
EP
European Patent Office
Prior art keywords
line
exhaust pipe
pipe according
metal jacket
exhaust
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
EP85108816A
Other languages
German (de)
English (en)
Other versions
EP0171624B1 (fr
Inventor
Klaus Dpl.-Ing. Winter
Wilfried Dr. Ing. Winzen
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.)
Witzenmann GmbH
Original Assignee
Witzenmann GmbH
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 Witzenmann GmbH filed Critical Witzenmann GmbH
Publication of EP0171624A1 publication Critical patent/EP0171624A1/fr
Application granted granted Critical
Publication of EP0171624B1 publication Critical patent/EP0171624B1/fr
Expired 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
    • 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
    • F01N13/16—Selection of particular materials
    • 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
    • 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
    • F01N13/107—More than one exhaust manifold or exhaust collector
    • 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
    • F01N2310/00—Selection of sound absorbing or insulating material
    • F01N2310/06—Porous ceramics

Definitions

  • the invention relates to an exhaust pipe intended for motor vehicle engines, in particular an exhaust manifold with a plurality of connection ports leading to the outlet openings of the cylinder head, in which the exhaust gas flows through a heat-insulating line made of sintered ceramic material.
  • Such an exhaust pipe is known from DE-PS 25 49 256.
  • the line made of ceramic material forms a core onto which an outer metal jacket is cast directly.
  • Such a line has the advantage that the exhaust gases flowing through it can be kept at such a level in terms of their temperature level that for afterburning of the in the cylinder not completely burned exhaust gas components offers favorable conditions.
  • Even if the core made of ceramic material ensures that the metal jacket is largely protected from strong heating, there are different thermal expansions of the ceramic material on the one hand and the metal jacket on the other hand, which lead to a loosening of the bond given by the pouring of the metal jacket and also Induce tension between the ceramic core and the metal jacket, which can lead to cracks or breaks in the ceramic material, which is sensitive to tension.
  • the described phenomena occur in particular when the components have a larger dimension, as is the case with components of an exhaust pipe for motor vehicle engines.
  • Such components are the exhaust manifold attached to the cylinder head, manifolds merging several exhaust manifolds, and, from there, leads to a muffler or an exhaust gas catalytic converter.
  • the object of the invention is to remedy the deficiencies described above, that is, to provide a way of remaining with the use of sintered ceramic material as a guide for the exhaust gas, without resulting in impairments or premature wear or unusability of the exhaust pipe.
  • the solution to this problem should be made possible with simple means in a reliable manner.
  • the object is achieved according to the invention in that the line is directly or indirectly flexible at least in one section, at least in the axial direction.
  • this solution is based on an exhaust pipe consisting exclusively of ceramic material, for which the generation of stresses between the fastening points is prevented by one or more of the flexible sections mentioned.
  • the line made of ceramic material is surrounded by a jacket, there is also the possibility of dividing the line into sections which are held by the jacket, in which case the flexible sections then exist in the jacket and the line there ceramic material has an interruption permitting axial movements.
  • the flexible section is formed by a corrugated tube made of temperature and corrosion-resistant metal.
  • a corrugated pipe can flexibly absorb both axial and lateral movements, so that over the corrugated pipe arises Tensions can be reduced or balanced.
  • the exhaust pipe - except for the sections - consists exclusively of ceramic material
  • flanges for connection to the cylinder head or a further pipe can be integrally formed on the pipe or its connecting piece, so that there are no further special measures here needed to attach the line.
  • the line is formed from reinforced ceramic material at least in the area of the connecting flanges.
  • the line in the area of its connecting piece for connection to the cylinder head or a further line is surrounded by a metal jacket and that the metal jacket carries the flanges for line attachment or has it connected in one piece.
  • the ceramic line is held by the metal jacket and connected to the cylinder head or further lines via its flanges.
  • Such a metal jacket can be cast onto the line, leaving at least one or the sections free. This results in a firm bond between the metal jacket and the ceramic line, although the disadvantages described at the outset cannot occur. Because now are Only in the area of the connecting pieces, metal jacket parts are poured on, that is, solid connections between the metal jacket and the ceramic line are formed only in a spatially very limited area, so that different temperature-related expansion differences cannot have a disadvantageous effect in these limited areas.
  • the metal sheath consisting of firmly connected sheet steel shells is placed on the line, possibly leaving at least the section free, and that an elastically compressed intermediate layer of metallic braid, knitted fabric, knitted fabric or the like is at least in places between the line and the metal sheath. is arranged.
  • the metal jacket in shell construction is formed by stamping sheet metal parts, which are placed on the ceramic line by inserting the intermediate layer and then connected to one another. Due to the fact that the ceramic line is embedded in the metal jacket via the intermediate layer mentioned, relative movements between the metal jacket and the ceramic line caused by thermal expansion cannot have an effect on the development of tensions. On the other hand, one or more of the flexible sections mentioned remain for the ceramic line, so that tensions forming within the ceramic line can be equalized.
  • the corrugated tube with the neighboring Ends of the ceramic line is connected gas-tight by brazing or by positive locking. This results in a brief interruption in the ceramic gas flow, which is insignificant in terms of temperature radiation and heat loss within the gas.
  • the ends of the corrugated tube can also be molded into the line ends. This possibility remains as long as the ceramic material can still be shaped, in which case the connection with the firing of the ceramic material becomes permanent.
  • the ends of the corrugated tube can also be molded onto outer, annular beads of the line ends and fixed there in a gas-tight manner by means of external clamping means.
  • These clamping means can be clamps with which the corrugated pipe is fastened to the ends of the ceramic line in a manner known per se.
  • the corrugated pipe can also be connected to the section of adjacent ends of the metal sheath encompassing the line in a gas-tight manner by welding, soldering, positive locking or the like, the ends of the ceramic line then being united in the area of the corrugated pipe can have a small distance, so that voltages can be compensated for by relative movement of the line parts, on the other hand the gas tightness due to the metal jacket and results in the corrugated tube used there, which in turn compensates for stresses caused by thermal expansion.
  • the corrugated tube In order to additionally protect the corrugated tube, it can be covered radially on the inside by a protective tube made of temperature and corrosion-resistant metal, wherein the protective tube can be fixed to the corrugated tube or can be held in the axial and radial direction by recesses in the adjacent line ends.
  • a protective tube made of temperature and corrosion-resistant metal, wherein the protective tube can be fixed to the corrugated tube or can be held in the axial and radial direction by recesses in the adjacent line ends.
  • the pipe is surrounded by a metal jacket made of sheet steel shells which are firmly connected to one another while leaving a mutual space in between, and that at least in places an elastically compressed intermediate layer made of metallic braid is between the pipe and the metal jacket , Knitted fabrics, knitted fabrics or the like.
  • the metal jacket carries the flanges for line attachment to the cylinder head or a further line or has one piece connected.
  • the line made of ceramic material can be formed without interruption, that is, in one piece, since its relative expansion movements relative to the metal sheath are possible due to the intermediate layer of braid, knitted fabric, knitted fabric or the like, which holds the ceramic line firmly within the metal sheath and wears without mutual tension in the two parts.
  • the metal sheathing can be easily applied to a finished ceramic part even in the case of extremely complicated shapes, since the sheathing consists of shells which are only firmly connected to one another after being placed on the intermediate layer. The unit thus formed is then attached to a cylinder head or a further line via the flanges of the
  • connection connections with the outlet openings of the cylinder head can have a flame tube which covers the bellows on the inside, which likewise serves to protect the bellows from local, too high temperature loads.
  • the metal sheath in the form of a bellows in addition to the flanges for line fastening.
  • tensions between the cylinder head or the further line on the one hand and the metal jacket on the other hand can be reduced in order to prevent impairment, particularly with regard to disassembly and reattachment, because during operation the metal sheath could warp, so that the mounting holes after disassembly when reattaching the flanges are no longer exactly aligned with the attachment points.
  • the bellows-shaped area of the metal jacket is not covered on the inside by the line made of ceramic material
  • the bellows-shaped area of the metal jacket at the connection connections with the outlet openings of the Cylinder head is covered on the inside by a flame tube with thermal insulation.
  • a flame tube protects the bellows-shaped area from direct gas access and also provides temperature decoupling due to its additional thermal insulation.
  • V-engine 1 with exhaust manifolds 2 and 3, which are connected to a further line 5, the exhaust manifold 2 being followed by a cross pipe 4.
  • the further line 5 is suspended from the vehicle at 6 and a muffler 7 is connected.
  • Fig. 4 shows a partial section of an exhaust manifold in a sectional view and in a bottom view.
  • 10 means the engine block with outlet openings 11, 12, in front of which the exhaust manifold, designated overall by 13, is screwed.
  • the exhaust manifold consists of line sections 14, 15 made of ceramic material, onto which a metal jacket 16, 17 is poured in the area of the connecting piece.
  • the metal jacket 16, 17 firmly encloses the line elements 14, 15.
  • the connection piece is attached via flanges 18, 19 of the metal sheaths 16, 17, through the bores 20 of which the exhaust manifold 13 is screwed to the engine block 10.
  • a sealing ring 21, 22 is interposed there for sealing.
  • the ceramic line elements 14, 15 extend in the area of the connecting piece up to close to the engine block 10 or the sealing ring 21, 22.
  • the exhaust pipe formed from ceramic material is flexibly formed on a section 23, in that the pipe elements 14, 15 are spaced apart from one another, which is bridged by a thin-walled corrugated pipe 24 made of temperature and corrosion-resistant metal.
  • the corrugated tube is terminally connected to the free ends of the line elements 14 and 15 by brazing.
  • a corrugated tube 27 is inserted between the ends 25 and 26 of the line made of ceramic material and is connected to the line end 26 by brazing.
  • a protective tube 28 with a radially outwardly projecting collar 29 is fastened by brazing.
  • the protective tube covers the corrugated tube 27 on the side facing the exhaust gas and the left end of the corrugated tube 27 is fixed gas-tight at 30 on the outside of the protective tube 28.
  • a protective tube consisting of two parts 33 and 34 with outwardly directed rims 35 and 36 is fixed by brazing.
  • the two protective tube parts overlap in the axial direction so that the radially inner protective tube part is arranged upstream.
  • the corrugated tube 37 is fixed gas-tight at 38 and 39.
  • This protective tube design forms a kind of labyrinth seal for the exhaust gas in relation to the corrugated tube 37, so that the corrugated tube is decoupled from the exhaust gas stream in terms of temperature and gas, thus reducing the heat radiation and the corrugated tube being less stressed.
  • FIG. 7 shows a connection as already shown in FIG. 4. Between the ends 40 and 41 of the line made of ceramic material is a corrugated tube 42 with its Ends fixed by brazing.
  • FIG. 8 shows an embodiment comparable to FIG. 7.
  • the line ends 43 and 44 have radially inside, i.e. H. on the exhaust gas side, a circumferential recess 45 or 46, in which a protective tube 47 is seated, which covers the corrugated tube 48 radially on the inside.
  • the protective tube 47 is provided with spherical rounded portions 49, 50 at its ends.
  • FIG. 9 shows an embodiment in which the line ends 51, 52 overlap in the axial direction while leaving axial and radial play with axial extensions 53, 54, the upstream extension 53 being arranged radially on the inside.
  • the heat radiation is further reduced by the design shown in FIG. 9.
  • a corrugated pipe 55 is attached on the outside of the pipe ends 51 and 52 on both sides of their abutment gas-tight by brazing.
  • Fig. 10 differs from the example of FIG. 9 in that the line ends 56, 57 each have a circumferential bead 58, 59 on the outside, onto which the ends of the corrugated tube 60 are molded and held there by clamps 61, 62.
  • the line ends 62, 63 are together with the. see them surrounding metal jacket 64, 65.
  • a joint is formed according to FIGS. 9 and 10, which will not be explained in more detail.
  • the corrugated tube 66 is connected gas-tight to the ends of the metal jacket 64, 65, for example by soldering or welding, so that the line ends 62, 63 are completely freed from the sealing function by fastening the corrugated tube.
  • FIG. 12 shows an example of how a corrugated tube 67 can be positively connected to the end 68 of the ceramic line by molding.
  • the end of the corrugated tube 67 is molded into the material during the formation of the line end 68, so that a permanent connection results after the line has burned, the strength of which can be increased by folding over the end of the corrugated tube 67.
  • FIG. 13 finally shows a junction of adjoining lines 69, 70, as has already been described with reference to FIGS. 9, 10 and 11.
  • a corrugated tube 71 is formed with its ends from the outside in the pipe material before firing, so that a permanent, gas-tight connection results after the firing.
  • Such a practically purely ceramic design is not only simple and inexpensive. It can also be used in the encapsulated drive units increasingly used today without the risk of damage from the outside.
  • FIG. 14 shows an example of an exhaust manifold designated 80 in total.
  • This has a one-piece line 81 made of ceramic material on the inside, which goes with nozzles to the outlet openings 82, 83 of an engine block 84.
  • the line 81 is surrounded by an intermediate layer 85 made of a knitted fabric, braid, knitted fabric or the like made of metal.
  • a metal sheath 86 consisting of two half-shells, the ones of which come to lie on one another, is placed on the intermediate layer by compressing them
  • Collar 87 are connected by spot welding 88 or the like.
  • the line 81 is firmly inserted into the metal jacket 86 via the intermediate layer 85, but there is sufficient mutual mobility on the other side between the line 81 and the metal jacket 86, since the parts are only non-positively connected to one another via the intermediate layer 85 and this connection is made the intermediate layer 85 is a shock-free storage.
  • the left-hand connection connection for the exhaust gas manifold with reference to FIG. 14 is shown enlarged in FIG. 15 and explained on the basis thereof, but the collars 87 with the weld connection 88 are omitted.
  • the reference numerals correspond to those of FIG. 14 insofar as they recur.
  • the metal jacket 86 is flanged to the outside at the connection end, so that it can be attached by a loose flange 89 to the cylinder block, not shown.
  • a bellows 90 with a flange projects into this fastening connection and is connected at its other end at 91 to the line 81 by brazing. In this way, the line 81 is connected gas-tight to the cylinder block. So that the soldered connection 91 does not experience overheating, the metal jacket in the area of the soldered connection is provided with openings 92 for external ventilation. Furthermore is a flame tube 93 with a terminal outer collar 94 attached to the connection, which covers the bellows 90 inside and thus prevents direct access of the exhaust gas to the bellows 90.
  • Fig. 16 shows a variant of the right connection in Fig. 14.
  • the line 95 made of ceramic material in the metallic sheath 96 is mounted on rings 97 made of braid, knitted fabric, knitted fabric or the like, which are arranged at a distance from one another, so that each other Can compensate for thermal expansion between line 95 and sheath 96 via the rings 97.
  • the metal jacket 96 is guided to the connection points via a bellows-shaped formation 98, the attachment to the engine block, not shown, being carried out again via a loose flange 99.
  • a flame tube 100 with an outwardly directed collar 101 is included in the connection, which covers the bellows 98 on the inside.
  • the flame tube is provided with external thermal insulation.
  • FIG. 17 shows a variant, for example according to FIG. 16.
  • the rings 103 carrying the line 102 are made of knitted metallic fabric, knitted fabrics, braid or the like by means of circumferential beads 104 of the metal jacket 105 held.
  • a corner ring 107 made of metallic braiding, knitted fabric, knitted fabric or the like is inserted into a gradation 106 of the metal jacket 105 for the opening edge of the line 102 in order to softly support this edge with respect to the metal jacket without there being a passage for the gas .
  • the flame tube 109 arranged inside the bellows 108, with its heat-insulating jacket 110 again corresponds to that described with reference to FIG. 16.
  • a line 111 made of ceramic material is in turn supported in a metal jacket 113 via an intermediate layer 112 made of metallic braiding, knitted fabrics, knitted fabrics or the like.
  • the line 111 has an interruption, which is bridged by a corrugated tube 114, which in turn, as described earlier, is fixed by brazing at the adjacent ends of the line 111.
  • the corrugated tube 114 is covered on the inside by a protective tube 115 which projects on both sides beyond the ends of the corrugated tube 114 the inside of line 111 is present. So that the mutual friction is reduced there, the ends of the protective tube 115 are in turn rounded at 116.
  • the protective tube 115 is fixed to the corrugated tube 114 at 117. This description corresponds to the representation in the upper half of FIG. 18.
  • the ends of the line 118 directed towards one another form a recess 119 in which the protective tube 120 is seated with its ends.
  • This is in itself sufficient for the axial mounting of the protective tube 120, although in the manner shown an additional fastening is provided at 121 on the corrugated tube 122. Because the protective tube 120 is inserted into recesses 119, a particularly streamlined arrangement is made.
  • the corrugated pipes 114 122 are connected to the ends of the lines 111 and 118 again by brazing.
  • the metal jacket 113 can be provided in the area of the corrugated tube with openings 123, 124, through which ventilation is possible from the outside.

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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)
EP85108816A 1984-07-28 1985-07-15 Conduit d'échappement pour moteurs de véhicule Expired EP0171624B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843427998 DE3427998A1 (de) 1984-07-28 1984-07-28 Abgasleitung fuer kraftfahrzeugmotoren
DE3427998 1984-07-28

Publications (2)

Publication Number Publication Date
EP0171624A1 true EP0171624A1 (fr) 1986-02-19
EP0171624B1 EP0171624B1 (fr) 1988-11-09

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Application Number Title Priority Date Filing Date
EP85108816A Expired EP0171624B1 (fr) 1984-07-28 1985-07-15 Conduit d'échappement pour moteurs de véhicule

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EP (1) EP0171624B1 (fr)
DE (2) DE3427998A1 (fr)

Cited By (12)

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EP0384853A2 (fr) * 1989-02-16 1990-08-29 Mohammed Boubehira Pot catalytique pour véhicules automobiles
US5356598A (en) * 1989-02-16 1994-10-18 Mohamed Boubehira Catalytic exhaust unit for an automobile vehicle
EP0696677A1 (fr) * 1994-07-11 1996-02-14 Toyota Jidosha Kabushiki Kaisha Système d'échappement pour moteur
EP0737803A1 (fr) * 1995-04-13 1996-10-16 Mercedes-Benz Ag Collecteur d'échappement, en particulier pour un moteur à combustion interne d'un véhicule à moteur, et procédé pour sa fabrication
EP1048829A1 (fr) * 1999-04-27 2000-11-02 Man Nutzfahrzeuge Ag Collecteur d'échappement pour moteurs à combustion interne à plusieurs cylindres
EP1291500A3 (fr) * 2001-09-07 2005-10-05 Friedrich Boysen GmbH & Co. KG Dispositif d'échappement pour moteurs à combustion interne multicylindres
FR2899933A1 (fr) * 2006-04-14 2007-10-19 Faurecia Sys Echappement Collecteur d'echappement composite
EP2450543A1 (fr) * 2010-11-08 2012-05-09 Faurecia Systèmes d'Echappement Collecteur d'échappement avec des brides minces
CN101054931B (zh) * 2006-03-17 2012-11-14 曼柴油机欧洲股份公司 用于多缸气体-和柴油发动机的排气管路系统
FR2981403A1 (fr) * 2011-10-12 2013-04-19 Faurecia Sys Echappement Collecteur d'echappement a bride fine, et procede de fabrication correspondant
EP2843207A1 (fr) * 2013-08-30 2015-03-04 Benteler Automobiltechnik GmbH Collecteur de gaz d'échappement doté de manchon d'isolation
WO2018099702A1 (fr) * 2016-11-30 2018-06-07 Bayerische Motoren Werke Aktiengesellschaft Système d'entraînement pour véhicule automobile et véhicule automobile comprenant le système d'entraînement

Families Citing this family (4)

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DE3922667C2 (de) * 1989-03-17 1994-12-01 Eberspaecher J Vorrichtung zur katalytischen Entgiftung zur Entrußung und/oder zur Schalldämpfung von Verbrennungsmotor-Abgasen mit doppelwandigem Gehäuse
DE102004027104A1 (de) * 2004-06-03 2005-12-22 Deutz Ag Abgassammelleitung für eine mehrzylindrige Brennkraftmaschine
DE202010011099U1 (de) * 2010-08-05 2011-12-27 Witzenmann Gmbh Leitungsgussteil und zusammengesetztes Leitungselement für die Abgasanlage einer Brennkraftmaschine
DE102012200396A1 (de) * 2012-01-12 2013-07-18 Witzenmann Gmbh Thermisch isoliertes flexibles Leitungselement

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US1621950A (en) * 1926-10-21 1927-03-22 Albert G Perkins Pipe joint
US1779902A (en) * 1928-12-11 1930-10-28 Nat Tube Co Expansible pipe joint
US1916479A (en) * 1932-06-28 1933-07-04 Howell Bruce Gordon Pipe coupling
FR1324420A (fr) * 1962-03-09 1963-04-19 Ensembles formés par des éléments de tuyauteries ou analogues et des soufflets ou joints de dilatation, assemblés par liaison bi-métallique
GB1137224A (en) * 1966-05-24 1968-12-18 Pickup & Sons Ltd J Pipe coupling
FR1530145A (fr) * 1966-07-05 1968-06-21 Owens Corning Fiberglass Corp Dispositif d'échappement pour moteurs à combustion interne
FR2074857A5 (fr) * 1970-01-02 1971-10-08 Arvin Ind Inc
US3807173A (en) * 1971-03-23 1974-04-30 Owens Illinois Inc Exhaust reactor for combustion engine
US3820829A (en) * 1972-08-29 1974-06-28 Caterpillar Tractor Co Coupling having a solid locking ring
US3798903A (en) * 1972-12-29 1974-03-26 Gen Motors Corp Exhaust reactor manifold
GB1375297A (fr) * 1973-04-30 1974-11-27
FR2284081A1 (fr) * 1974-09-06 1976-04-02 Wurth Anciens Ets Paul Dispositif d'assemblage a compensateur destine a relier deux elements tubulaires pourvus d'une garniture refractaire
US4171832A (en) * 1976-11-16 1979-10-23 International Harvester Company Relaxing joints
FR2527263A1 (fr) * 1982-05-22 1983-11-25 Witzenmann Metallschlauchfab Collecteur d'echappement et procede pour sa fabrication

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0384853A2 (fr) * 1989-02-16 1990-08-29 Mohammed Boubehira Pot catalytique pour véhicules automobiles
EP0384853A3 (en) * 1989-02-16 1990-10-17 Mohammed Boubehira Catalytic reactor, specifically a catalyst for motor vehicle exhaust gases
US5356598A (en) * 1989-02-16 1994-10-18 Mohamed Boubehira Catalytic exhaust unit for an automobile vehicle
EP0696677A1 (fr) * 1994-07-11 1996-02-14 Toyota Jidosha Kabushiki Kaisha Système d'échappement pour moteur
US5606857A (en) * 1994-07-11 1997-03-04 Toyota Jidosha Kabushiki Kaisha Exhaust system for an engine
EP0737803A1 (fr) * 1995-04-13 1996-10-16 Mercedes-Benz Ag Collecteur d'échappement, en particulier pour un moteur à combustion interne d'un véhicule à moteur, et procédé pour sa fabrication
US5689954A (en) * 1995-04-13 1997-11-25 Mercedes-Benz A.G. Exhaust gas manifold for an internal combustion engine and method of making such exhaust gas manifold
EP1048829A1 (fr) * 1999-04-27 2000-11-02 Man Nutzfahrzeuge Ag Collecteur d'échappement pour moteurs à combustion interne à plusieurs cylindres
EP1291500A3 (fr) * 2001-09-07 2005-10-05 Friedrich Boysen GmbH & Co. KG Dispositif d'échappement pour moteurs à combustion interne multicylindres
CN101054931B (zh) * 2006-03-17 2012-11-14 曼柴油机欧洲股份公司 用于多缸气体-和柴油发动机的排气管路系统
WO2007118969A1 (fr) * 2006-04-14 2007-10-25 Faurecia Systemes D'echappement Collecteur d'echappement composite
US8245506B2 (en) 2006-04-14 2012-08-21 Faurecia Systemes D'echappement Composite exhaust manifold
FR2899933A1 (fr) * 2006-04-14 2007-10-19 Faurecia Sys Echappement Collecteur d'echappement composite
DE112007000864B4 (de) * 2006-04-14 2018-01-18 Faurecia Systemes D'echappement Abgaskrümmer-Anordnung
EP2450543A1 (fr) * 2010-11-08 2012-05-09 Faurecia Systèmes d'Echappement Collecteur d'échappement avec des brides minces
WO2012063096A1 (fr) * 2010-11-08 2012-05-18 Faurecia Systemes D'echappement Collecteur d'échappement à collerettes minces
CN102465748A (zh) * 2010-11-08 2012-05-23 佛吉亚排气系统有限公司 具有薄法兰盘的排气歧管
FR2981403A1 (fr) * 2011-10-12 2013-04-19 Faurecia Sys Echappement Collecteur d'echappement a bride fine, et procede de fabrication correspondant
EP2843207A1 (fr) * 2013-08-30 2015-03-04 Benteler Automobiltechnik GmbH Collecteur de gaz d'échappement doté de manchon d'isolation
US9416719B2 (en) 2013-08-30 2016-08-16 Benteler Automobiltechnik Gmbh Exhaust manifold with insulation sleeve
WO2018099702A1 (fr) * 2016-11-30 2018-06-07 Bayerische Motoren Werke Aktiengesellschaft Système d'entraînement pour véhicule automobile et véhicule automobile comprenant le système d'entraînement
US10808604B2 (en) 2016-11-30 2020-10-20 Bayerische Motoren Werke Aktiengesellschaft Drive system for a motor vehicle, and motor vehicle having the drive system

Also Published As

Publication number Publication date
DE3427998A1 (de) 1986-01-30
EP0171624B1 (fr) 1988-11-09
DE3566137D1 (en) 1988-12-15

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