EP1389267B1 - Collecteur d'echappement - Google Patents

Collecteur d'echappement Download PDF

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Publication number
EP1389267B1
EP1389267B1 EP02712862A EP02712862A EP1389267B1 EP 1389267 B1 EP1389267 B1 EP 1389267B1 EP 02712862 A EP02712862 A EP 02712862A EP 02712862 A EP02712862 A EP 02712862A EP 1389267 B1 EP1389267 B1 EP 1389267B1
Authority
EP
European Patent Office
Prior art keywords
exhaust
gas
exhaust manifold
sealing device
cylinder head
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
EP02712862A
Other languages
German (de)
English (en)
Other versions
EP1389267A2 (fr
Inventor
Hans A. Haerle
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.)
Individual
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Individual
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Filing date
Publication date
Priority claimed from DE20101645U external-priority patent/DE20101645U1/de
Priority claimed from DE20101644U external-priority patent/DE20101644U1/de
Application filed by Individual filed Critical Individual
Publication of EP1389267A2 publication Critical patent/EP1389267A2/fr
Application granted granted Critical
Publication of EP1389267B1 publication Critical patent/EP1389267B1/fr
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Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F11/00—Arrangements of sealings in combustion engines 
    • F02F11/002—Arrangements of sealings in combustion engines  involving cylinder heads
    • 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
    • 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
    • F01N13/105—Other arrangements or adaptations of exhaust conduits of exhaust manifolds having the form of a chamber directly connected to the cylinder head, e.g. without having tubes connected between cylinder head and chamber
    • 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
    • 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
    • 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
    • F01N2530/00—Selection of materials for tubes, chambers or housings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
    • F02F1/4264—Shape or arrangement of intake or exhaust channels in cylinder heads of exhaust channels
    • F02F2001/4278—Exhaust collectors

Definitions

  • the invention relates to an exhaust manifold for attachment to a cylinder head of an internal combustion engine, which has at least one provided with exhaust bores for the outlet of exhaust gas cylinder bank.
  • an exhaust manifold for attachment to a cylinder head of an internal combustion engine which comprises an exhaust manifold, a seal arranged between the exhaust manifold and the cylinder head, and a gas duct wherein the exhaust gas collecting housing is provided with recesses, which allow a connection thereof with the cylinder head, wherein between the exhaust gas collecting housing and the cylinder head caused by heat movements are possible.
  • EP 0 709 557 A1 describes an exhaust manifold in which each exhaust pipe is welded to a flange which is intended to be screwed to the cylinder head. Starting from the cylinder head, the exhaust pipes open into a common manifold, which then continues in the exhaust pipe.
  • an exhaust manifold is known, for example, from EP 0 671 551 A1, in which a gas guide channel is arranged within a housing.
  • a gas guide channel is arranged within a housing.
  • EP 0 765 994 A1 describes an exhaust manifold for an internal combustion engine, in whose housing baffles are arranged to direct the exhaust gas flowing into the housing in the direction of an outflow channel.
  • the entire housing is to be made of only one board by punching and bending, the baffles are welded into the housing.
  • US-PS 4,537,027 describes an exhaust manifold, in which also the exhaust gases of all the exhaust bores are introduced into a common housing.
  • Another exhaust manifold is known from EP 0 849 445 A1.
  • the sealing device provided in this case is formed integrally with the exhaust gas collecting housing, which on the one hand does not guarantee a tightness of this exhaust gas manifold.
  • the exhaust manifold heated by the exhaust gases can in turn deliver its heat to the cylinder head and so heat the same so that even engine damage can be the result.
  • the gas guide channel used according to the invention within the exhaust gas collecting housing results in an air gap-insulated exhaust manifold which extracts relatively little heat from the exhaust gas due to the thin walls of the gas guide channel and the air gap between the exhaust gas collection housing and the gas guide channel.
  • a decrease in the exhaust gas temperature is prevented and improves the response and efficiency of a downstream catalytic converter.
  • the use of such a gas guide channel it is also possible to use a relatively inexpensive material for the exhaust manifold, since only the gas guide channel itself is thermally heavily loaded, resulting in a reduction in manufacturing costs for the exhaust manifold according to the invention.
  • the sealing device between the exhaust gas collecting housing and the cylinder head ensures a sealing of the exhaust gas collecting housing from the environment and, in principle, allows movements between the exhaust gas collecting housing and the cylinder head, which can be caused for example by the action of heat.
  • the gas guide channel Due to the guidance of the circulating collar of the gas guide channel below the circumferential recess of the exhaust gas collecting housing, it is possible for the gas guide channel to carry out movements caused by the action of heat relative to the sealing device and / or with respect to the exhaust gas collecting housing. Only by enabling such, though minimal movements, the durability of the exhaust manifold according to the invention is to ensure.
  • the gas guide channel may have a main part adapted to the contour of the exhaust gas collecting housing and a bottom part arranged in the direction of the sealing device.
  • This embodiment in which all the exhaust bores are introduced directly into a common gas duct, is particularly advantageous because of the very cost-effective production of the gas duct.
  • individual lines can run from the gas guide channel to the respective exhaust gas bores which separate the exhaust gas bores from one another.
  • the exhaust gases from the exhaust gas holes are first introduced independently of each other in the sense of a single channel guide via the lines in the gas guide channel and it will be on this Mutual influences on the outflow of exhaust gases from the individual exhaust holes prevented.
  • very advantageous embodiment of the invention can be provided that within the exhaust manifold lines are arranged, which form a gas guide channel, wherein the exhaust gases from the individual exhaust bores are separated from each other by the lines, wherein the lines are held by the exhaust gas collecting housing, that caused by the action of heat movements of the lines are possible, and wherein the lines extend at least up to a transition of the exhaust gas collecting housing in an exhaust pipe.
  • the lines used in this case separate the exhaust gases from the exhaust bores of each other and thus form a gas duct with individual lines for each exhaust hole.
  • This separation of the individual exhaust gas flows from one another results in a very low flow resistance for the exhaust gases, which leads, for example, in the operation of the internal combustion engine with supercharging by the higher kinetic energy of the exhaust gas to a significant torque and thus power increase.
  • Another advantage is that by avoiding mutual interference of the individual exhaust gas streams in the combustion chambers of the internal combustion engine in a much shorter time, a very high negative pressure is created, which allows optimum conditions for the subsequent filling of the combustion chamber with the fuel / air mixture.
  • the lines are each constructed of individual baffles, which allows a particularly simple construction and in particular manufacturing.
  • the baffles are provided on their side facing the cylinder head each with a collar which is guided in the circumferential recess such that between the lines and the sealing means and / or between the lines and the exhaust gas collecting housing by the action of heat caused movements are possible, the individual baffles is allowed to carry out relative to the sealing device and / or relative to the exhaust gas collecting housing caused by the action of heat. This can help to increase the durability of the exhaust manifold according to the invention.
  • FIG. 1 shows an exhaust manifold 1 which is attached to a cylinder head 2 of an internal combustion engine 3.
  • it is an internal combustion engine 3 in a row construction, in which the cylinder head 2 has only one cylinder bank 4 with four cylinders or combustion chambers 5 in this case.
  • a plurality of cylinder banks 4 could be provided, to each of which then an exhaust manifold 1 would be attached.
  • the exhaust manifold 1 In the cylinder head 2 are four outgoing from the cylinders 5 exhaust holes 6, which open into the exhaust manifold 1. In this way, the exhaust gas enters the exhaust manifold 1.
  • the exhaust manifold 1 is provided on its side facing away from the engine 3 with an opening 7, which may be located at any point and to which an exhaust pipe 8 is connected in a known manner. A not shown, for cleaning the exhaust gases serving exhaust gas catalyst can also be located in the exhaust pipe 8.
  • FIG. 2 and FIG. 3 show in a perspective view a first embodiment of the exhaust manifold 1.
  • This has an exhaust gas collecting housing 9, which receives the exhaust gases from the exhaust bores 6 of the cylinder head 2.
  • a sealing device 10 is located between the exhaust gas collecting housing 9 and the cylinder head 2 (not illustrated in the following figures for reasons of clarity).
  • the exhaust gas collecting housing 9 is surrounded by a circumferential collar 11 in its entire circumference, in which recesses 12 for passing through fastening means 13, such as the combination screw / nut are located. With the fastening means 13, the exhaust gas collecting 9 is attached to the cylinder head 2.
  • a gas guide channel 14 which has a main part 15 adapted to the contour of the exhaust gas collecting housing 9 and a bottom part 16 arranged in the direction of the sealing device 10, ie in the direction of the cylinder head 2.
  • an air gap 17 which separates the hot exhaust gas within the gas guide channel 14 from the cold ambient air.
  • the present embodiment of the exhaust manifold 1 is also referred to as the air gap-isolated exhaust manifold 1.
  • the bottom part 16 of the gas guide channel 14 is provided with four holes 18 whose positions at least approximately coincide with the positions of the four exhaust bores 6 of the cylinder head 2, so that the exhaust gases can be easily introduced into the gas guide channel 14.
  • the bottom part 16 is provided in the region between the bores 18 with a total of at least three stampings 19, each of which in the direction of the main part 15 facing surveys and embossed in the opposite direction beads and serve to stiffen the bottom part 16.
  • the bottom part 16 itself serves to stiffen the gas guide channel 14 and to shield the cylinder head 2 against the heat from the gas guide channel 14.
  • the bottom part 16 may optionally be omitted, in which case the sealing device 10 of its Function takes over.
  • the gas guide channel 14, in the present case, the main part 15 of the gas guide channel 14 is provided on its side facing the cylinder head 2 with a circumferential in the present case along its entire collar 20, which is clamped between the exhaust manifold 9 and the sealing device 10. Also, the bottom part 16 has a collar 20 of the main part 15 corresponding circumferential collar 21 which is disposed between the peripheral collar 20 of the main part 15 and the sealing device 10.
  • the exhaust gas collection housing 9 a circumferential recess 22, in which the encircling collar 20 and in the present case, the circumferential collar 21 are guided.
  • the parts mentioned so far such as the exhaust manifold 9, the main part 15 or the bottom part 16 can be prepared relatively inexpensively by deep drawing or similar forming process, the stampings 19, the collar 20, the collar 21 and the recess 22 can be introduced during this deep drawing operation in the respective component.
  • the sealing device 10 between the exhaust gas collecting housing 9 and the cylinder head 2 according to FIG. 3 in the present case consists of a high-temperature-resistant metal and has four holes 23 corresponding to the bores 18 and the bores 6. Furthermore, the sealing device 10 is provided with a circumferential outside of the bores 23 bead 24 which on the one hand with the cylinder head 2 and on the other hand with the gas guide channel 14 in contact and thus seals these two parts against each other. Outside the first bead 24 extends a second circumferential bead 25 which rests on the one hand on the cylinder head 2 and on the other hand on the exhaust gas collecting 9, to seal the same against each other. In addition, the beads 24 and 25 create an air gap between the cylinder head 2 and the sealing device 10, which isolates the exhaust manifold 1 to a certain extent relative to the cylinder head 2.
  • the sealing device 10 has recesses 12a, the shape and position of which substantially corresponds to that of the recesses 12 of the exhaust gas collecting housing 9. To the above-mentioned movements of the gas guide channel 14 and also to allow movements of the exhaust gas collecting 9 relative to the sealing device 10 and thus with respect to the cylinder head 2, the recesses 12 and 12 are formed in the form of oblong holes. At each of the recesses 12a in the sealing device 10, a bead 26 is likewise provided, which serves for the support.
  • the gas guide channel 14 is made of a high-temperature resistant metal, since it must be able to withstand relatively high exhaust gas temperatures. Because of this selected material for the gas guide channel 14 and the existing air gap 17, which, as mentioned above, ensures isolation, the exhaust manifold 9 may consist of a relatively inexpensive structural steel or, for example, if noise and / or strength problems occur, made of cast iron.
  • the material number is 1.4828, for example, as the material, for the exhaust gas collection 9 with a thickness of about 2 mm, the material number 1.4512 in question.
  • FIG. 5 shows a section through an embodiment of an exhaust manifold 1 similar to the exhaust manifold 1 shown in FIGS. 2, 3 and 4, in which the bottom part 16 has a flanging 27 directed away from the sealing device 10.
  • the flanging 27 of the bottom part 16 is welded to a flanging 28 extending on the circumferential collar 20 of the main part 15.
  • a firm connection of these two parts by folding or equivalent method is possible.
  • the flanging 27 of the bottom part 16 may also be welded directly to the main part 15, wherein the main part 15 is provided in all cases with the disposed below the recess 22 collar 20.
  • FIG. 7 Another example of the exhaust manifold 1 is shown in FIG. 7.
  • a hold-down element 29 is arranged between the exhaust gas collecting housing 9 and the sealing device 10 or clamped, which has a circumferential recess 30, in which the encircling collar 20 is in turn guided such that between the gas duct 14 and the sealing device 10 and / or the hold-down element 29 caused by heat movements are possible.
  • the hold-down element 29 itself is guided in the recess 22, which is also present here, of the exhaust gas collecting housing 9.
  • a further sealing device 31 is arranged, which may alternatively consist of a metal or a soft material.
  • a soft material is particularly suitable for noise reduction.
  • the embodiments of the gas guide channel 14 shown in FIGS. 4, 5 and 6 can also be realized in the embodiment of the exhaust manifold 1 with the hold-down element 29 shown in FIG. 7.
  • the same also applies to the sealing device 31, in which recesses 12c are provided.
  • the hold-down element 29 with the aid of the exhaust gas collecting 9 relative to the cylinder head 2 are firmly attached.
  • the recesses 12b and 12c are designed as slots.
  • an adapter flange 32 is provided between the exhaust gas collecting housing 9 and the sealing device 10, which is not suitable for closing off shown holes in the cylinder head 2, such as coolant holes or oil lines, is provided.
  • the adapter flange 32 can therefore be opened or closed at completely different locations.
  • the adapter flange 32 is adapted to the shape of the sealing device 10, that is, it has not shown in Fig. 8 bores 23a whose positions correspond to the positions of the exhaust bores 6, and recesses 12d for performing the fastening means 13.
  • a further sealing device 33 is arranged as a spacer seal, which is provided, inter alia, with recesses 12 e for the fastening means 13.
  • the sealing device 33 of the recess 22 forms for receiving the collar 20.
  • the sealing devices 31 and 33 can optionally also be interchanged.
  • the exhaust manifold 1 according to FIG. 9 has a gas guide channel 14, in which the main part 15 consists of two plates 15a and 15b. This allows even better isolation between the exhaust gas flowing through the gas guide channel 14 and the environment due to the air gap 34 located between the two plates 15a and 15b. Otherwise, the exhaust manifold 1 according to FIG. 9 can have the construction of all previously described exhaust manifolds 1.
  • the exhaust manifold 9 has the recess 22 for receiving the collar 20 and the collar 21 and it is again the gas guide channel 14, consisting of the main part 15 and the bottom part 16, provided.
  • the gas guide channel 14 is made of ceramic and also has the collar 20 which is disposed below the recess 22 on the exhaust manifold 9.
  • a sliding film 35 is arranged between the gas guide channel 14 and the exhaust gas collecting housing.
  • FIG. 12 shows, in a perspective view, a further exhaust manifold 1, in which the gas guide channel 14 has a configuration that is in principle different from that described so far.
  • individual lines 37 run from the gas guide channel 14 to the respective exhaust gas bores 6 and thus separate the exhaust gas streams which leave the individual exhaust gas bores 6 from one another.
  • the lines 37 are each provided with a peripheral collar 38, which in each case between the exhaust gas collecting housing 9 and the Sealing device 10 is clamped and replaced with respect to its operation, the collar 20 described above.
  • the exhaust gas collecting housing 9 is also provided with the recesses 22, which can be recognized as bulges 39 on the outside of the exhaust gas collecting housing 9.
  • the gas guide channel 14 has an upper part 40 and a gas-tightly connected to the upper part 40, arranged in the direction of the sealing device 10 and the cylinder head 2 lower part 41.
  • the lines 37 are assigned to the lower part 41 and, for example welded to the same or connected by folding with the same.
  • the upper part 40 and the lower part 41 are welded together along a weld 42, which is particularly easy to manufacture in this case. Again, the connection is possible by means of folding.
  • Figures 14 and 15 show two different embodiments of the exhaust manifold 1 shown in Fig. 12 and Fig. 13 in section, wherein according to FIG. 14, a beading 43 is attached to the sealing device 10, which points in the direction of the gas guide channel 14.
  • Fig. 15 it is shown that the collar 38 may be welded to the conduits 37 also via a weld 44 instead of being integral therewith as shown in Fig. 14.
  • the exhaust manifold 1 represented by an exploded view in FIG. 16 has the hold-down element 29 already mentioned above, which is provided with a recess 45 which comprises all exhaust gas bores 6. Furthermore, the recesses 30 of the hold-down element 29 can be seen, which are each provided in pairs for receiving a collar 38 of the lines.
  • the hold-down element 29 also has the function already explained above in this case.
  • the hold-down element 29 has individual bores 46 whose positions at least approximately coincide with the positions of the exhaust bores 6 and which replace the above-mentioned recess 45.
  • the recesses 30 for receiving the respective circumferential collar 38 are provided on the circumference of the bores 46.
  • the hold-down element 29 is divided in the longitudinal direction of the exhaust gas collecting housing 9, in this case in two halves 29a and 29b.
  • the gas guide channel 14, in contrast to the embodiment with the upper part 40 and the lower part 41 may consist of two at least approximately half shells 47 and 48, which are divided in the longitudinal direction of the gas guide channel 14, and respectively have half of one of the lines 37.
  • a weld 49 is also provided here, which connects the two half-shells 47 and 48 with each other.
  • the collar 38 on the line 37 is in this embodiment not round but executed approximately square, but fulfills the same purpose as the collar 38 described above or described with reference to the other embodiments of the exhaust manifold 1 collar 20.
  • the gas guide channel 14 consisting of the upper part 40 and the lower part 41 or the gas guide channel 14 consisting of the two half shells 47 and 48 may be more advantageous. In order to enable a comparison of the two embodiments, both are shown on one and the same gas guide channel 14 in FIG. 17.
  • FIGs 18 and 19 show the exhaust manifold 1 similar to Figures 14 and 15, but both times the hold-down element 29 is provided.
  • Fig. 20 shows a perspective, sectional view of another embodiment of the exhaust manifold 1.
  • the exhaust gas collecting housing 9 which is able to receive the exhaust gases from the exhaust bores 6 of the cylinder head 2.
  • the sealing device 10 is arranged, which consists of a high temperature resistant metal to shield the cylinder head 2 against the high temperatures of the exhaust manifold 1.
  • the exhaust gas collecting housing 9 is also surrounded on its entire circumference by the circumferential collar 11, which is provided at regular intervals with the recesses 12 for carrying out the fastening means 13, not shown in this case. With the aid of the fastening means, the exhaust gas collecting housing 9 can be attached to the cylinder head 2 e.g. be screwed on. In order to enable movements of the exhaust gas collecting housing 9 with respect to the sealing device 10 and thus with respect to the cylinder head 2, the recesses 12 are formed in the form of oblong holes.
  • the gas guide channel 14 is also arranged here, which in the present case is composed of a total of three lines 50, 51 and 52.
  • Each of the lines 50, 51 and 52 in turn each has two baffles 50a and 50b, 51a and 51b and 52a and 52b.
  • the baffles 50a and 50b of the first, the baffles 51a and 51b of the second and the baffles 52a and 52b of the third exhaust hole 6 are assigned and are each in close proximity on both sides of the associated exhaust gas holes 6.
  • a line 50, 51 or 52 consisting of two baffles 50 a, 50 b, 51 a, 51 b, 52 a and 52 b, is provided.
  • baffles 50a, 50b, 51a, 51b, 52a and 52b emerging from the individual exhaust gas holes 6 exhaust gases are separated from each other and it can be a mutual influence of these exhaust gases when flowing out of the internal combustion engine 3 are prevented. This is particularly advantageous when the internal combustion engine 3 is to be operated with the so-called surge charging.
  • the baffles 50a, 51a and 52a each extend to the region in which the exhaust gas collecting housing 9 merges into the exhaust gas line 8, that is, into the region of the opening 7, wherein a flange element connecting the exhaust gas collecting housing 9 to the exhaust gas line 8 is not shown.
  • the conduit 50 thus extends from a lateral end of the exhaust manifold 1 to its opposite side end and is therefore substantially longer than the conduit 52 extending from the directly adjacent to the opening 7 exhaust hole 6 leads to the opening 7.
  • the guide plates 50b and 51b terminate where they meet with the guide plates 51a and 52a of the subsequent exhaust gas bore. In this way, a material and thus weight savings can be achieved, since anyway only one sheet is required to separate the adjacent exhaust holes 6 and the lines 50, 51 and 52 in a sufficient manner from each other.
  • a bottom plate 53 On the side of the guide plates 50a, 50b, 51a, 51b, 52a and 52b facing the cylinder head 2, a bottom plate 53 is provided, which in this case has three bores 54 whose positions substantially coincide with the positions of the exhaust bores 6.
  • the bottom plate 53 has embossings 55 arranged between the bores 54, which each consist of protrusions extending from the cylinder head 2 and embossed beads in the direction of the cylinder head 2 and serve to stiffen the bottom plate 53 and prevent vibrations of the bottom plate 53.
  • the bottom plate 53 itself shields the cylinder head 2 against heat from the gas guide channel 13. When the bottom plate 53 is omitted, the sealing device 10 takes over its function.
  • Each of the baffles 50a, 50b, 51a, 51b, 52a, 52b is provided on its side facing the cylinder head 2 each with a collar 56, which in each case under the here provided, the exhaust manifold 9 associated or located at the same recess 22 extends and in this way is slidably clamped between the exhaust manifold 9 and the sealing device 10.
  • the bottom plate 53 has a circumferential collar 57, which is arranged below the collar 56 and thus also below the recess 22 of the exhaust gas collecting housing 9.
  • the baffles 51a and 52a have been omitted, resulting in longer intervals between the baffles 50b and 51b and 51b and 52b leads.
  • the lines 51 and 52 in which the exhaust gases from the exhaust gas holes 6 flow, larger.
  • the size of the line 50 does not change.
  • a weight and cost reduction is achieved, however, depending on the particular embodiment of the internal combustion engine 3, possibly neutralized by the less precise guidance of the exhaust gas through the lines 50, 51 and 52 of the gas guide channel 13 again becomes. This is dependent on the respective conditions of the particular internal combustion engine to which the exhaust manifold 1 is attached. Accordingly, in this described embodiment, the guide plates 50a, 50b and 51b extend up to the opening 7, at which the exhaust gas collecting housing 9 merges into the exhaust gas line 8.
  • FIG. 22 A further embodiment of an exhaust manifold 1 is shown in FIG. 22.
  • the baffles 50b, 51b and 52b are omitted. Again, there are again changes in the size of the lines 50, 51 and 52, which are all larger here.
  • various baffles 50a, 50b, 51a, 51b, 52a and 52b may be omitted as long as the exhaust gases flowing out of the exhaust bores 6 are separated from each other.
  • FIGS. 23, 24 and 25 fundamentally different embodiments of the exhaust manifold 1 are shown in FIGS. 23, 24 and 25.
  • the main difference is that the opening 7, at which the exhaust gas collecting housing 9 merges into the exhaust pipe 8, not is arranged more in a lateral region of the exhaust gas collecting housing 9, but directly opposite the cylinder head 2 in a central region of the exhaust gas collecting housing.
  • emanating from the exhaust holes 6 lines 50, 51 and 52 inevitably no longer the same from one side of the exhaust manifold 9 to the other side but the two outer lines 50 and 52 extend from the outside, so from the two lateral areas , to the central region of the exhaust gas collecting housing 9.
  • the leading away from the central exhaust hole 6 line 51 extends substantially along the longitudinal axis of the associated exhaust hole 6, that is substantially perpendicular to the plane of the sealing device 10, since the opening 7 is disposed directly above the central exhaust hole 6 is. This results in a sense a layering of the lines 50, 51 and 52nd
  • the lines 50, 51 and 52 in contrast to the exhaust manifold 1 according to FIG. 20, FIG. 21 and FIG. 22 are not formed in each case by two guide plates but in the embodiment according to FIG. 23 as follows:
  • the middle line 51 is formed by a from the exhaust hole to the opening 7 extending continuously, baffle 58 formed in its the exhaust hole 6 facing area of circular, closed cross section, whereas the two outer lines 50 and 52 each have an inner baffle 59 and an outer baffle 60.
  • the baffle 58 is formed so that it separates the two outer lines 50 and 52 from each other, for which it has in the area immediately in front of the opening 7 in the direction of the edge of the outer baffle 60 directed and in contact therewith projection 61. Also on the projection 61 opposite side of the baffle 58 is a projection which, however, can not be seen due to the sectional view. Of course, the described separation of the lines 50, 51 and 52 from each other could also be realized by an oval design of the line 51.
  • the baffle 59 has been omitted, whereby the outer leads 50 and 52 are formed only by the baffle 58 and the outer baffle 60.
  • the outer lines 50 and 52 increase, which may possibly result in a less precise guidance of the exhaust gas through the lines 50 and 52.
  • the projection 61 for sealing the lines 50, 51 and 52 against each other is also provided here.
  • the illustrated exhaust manifold 1, in which the lines 50, 51 and 52 are stacked on top of each other, are of course also in internal combustion engine 3 with four or more cylinders 5 conceivable. Then, if appropriate, no central exhaust gas bore 6 would be present and the opening 7 could be located between two exhaust gas bores 6. However, the arrangement of the necessary for this, beyond the lines 50, 51 and 52 outgoing lines, the skilled person can easily imagine. The same applies to the embodiments according to Figures 20, 21 and 22, when more than three cylinders 5 are provided.
  • the bottom plate 53 is provided with the holes 54 and the stampings 55 and takes over the function already described above.
  • the same also applies to the respective collar 56 on the baffles 58, 59 and 60. These are in turn, together with the collar 57 of the bottom plate 53, below the recess 22 of the exhaust gas collecting 9 arranged so that caused by the action of heat movements of the lines 50, 51st and 52 are possible.
  • the gas guide channel 13 is in all embodiments of a high temperature resistant metal, since he must be able to withstand relatively high exhaust gas temperatures. Due to this selected material for the gas guide channel 13 and existing between the gas guide channel 13 and the exhaust manifold 9 air gap 17, which separates the hot exhaust gas within the gas guide channel 13 from the cold ambient air, thus ensuring insulation, the exhaust manifold 9 can be made of a relatively inexpensive structural steel or, for example, when noise problems occur, consist of cast iron.
  • the material number is 1.4828, for example, as the material, for the exhaust gas collecting 9 with a thickness of about 2 mm, the material number 1.4512 in question.
  • the exhaust gas collecting 9, the bottom plate 53 and the individual baffles 50a, 50b, 51a, 51b, 52a, 52b, 58, 59 and 60 can be produced inexpensively and reliably by deep drawing.
  • sealing device 10 may have three and possibly more holes whose positions at least approximately correspond to the positions of the exhaust holes 6. Furthermore, it can be provided that the sealing device 10 has a bead extending outside the holes, which on the one hand on the cylinder head 2 and on the other hand on the respective baffle 50a, 50b, 51a, 51b, 52a, 52b and 58, 59, 60 or the bottom plate 53 rests. In addition, outside the first bead, a second circumferential bead can run, which on the one hand bears against the cylinder head 2 and, on the other hand, against the exhaust gas collecting housing 9 in order to seal them against one another.
  • recesses should also be provided in the sealing device 10 which correspond to the recesses 12 of the exhaust manifold flange.
  • This adapter flange is adapted to the shape of the sealing device 10 and it can be arranged between the exhaust manifold 9 and the adapter flange, a further sealing means.
  • FIG. 26 shows an embodiment of the exhaust manifold 1 similar to that of FIG. 8.
  • a spacer ring 62 is provided, which is welded in the region of the collar 11 with the exhaust gas collecting housing 9 and with the underlying adapter flange 32 by means of a weld 63.
  • the weld 63 which is located within the recesses 12, not shown in this case, serves for even better sealing of the gas guide channel 14 from the environment.
  • the weld seam 63 can be embodied as a laser stitched seam, as a roll seam, as an electron beam seam or the like. Furthermore, it is also possible to provide a solder joint instead of the weld 63.
  • the gas guide channel 14 is formed from a main part 15 and an at least partially bent bottom part 16. Between the bottom part 16 and the adapter flange 32 is a multilayer bottom plate 64, which serves to achieve a sound insulation.
  • the multilayer base plate 64 may be embodied, for example, as a wire mesh, as a woven fabric, as metal fibers or as a sintered plate, wherein in the illustrated embodiment, sheet metal beads are provided for achieving a spring effect.
  • the bottom plate 64 also a displaceability of the gas guide channel 14 and a reduction of the gas pulsation within the gas guide channel 14 is achieved.
  • Fig. 27 The illustrated in Fig. 27 embodiment of the exhaust manifold 1 is performed approximately identically to that of FIG. 26, wherein the bottom plate 64, however, is made in one piece. Furthermore, a stiffening flange 65 is arranged in this case within the collar 11, which serves to further stiffen the exhaust manifold 1.
  • FIG. 28 shows an exhaust manifold 1 which is similar to that shown in FIG. 11.
  • the exhaust gas collection housing 9 made of cast iron and the gas guide channel 14 made of ceramic.
  • the air gap 17 with a knitted element 66 which may for example consist of metal or ceramic, filled.
  • the sealing device 10 and the adapter flange 32 which could possibly be dispensed with.
  • the floor panel 64 described above is arranged for sound insulation.
  • FIG. 29 A further embodiment of the exhaust manifold 1 is shown in FIG. 29.
  • a heat storage medium 67 can be provided with heat exchanger tubes 68, as indicated in the left half of FIG.
  • These heat exchanger tubes 68 can be flowed through, for example, with cooling water in order to use the introduced into the gas duct 14 exhaust heat for a vehicle heating.
  • Means be provided to use the heat energy stored in the heat storage medium 67.
  • FIG. 30 shows a further embodiment of the exhaust manifold 1, which, analogous to the embodiment according to FIG. 29, serves as a heat exchanger, in this case by an additional wall 69 arranged between the gas guide channel 14 and the exhaust gas collector housing 9, which Similar to FIG. 26 and FIG. 29, the weld 63 connects to the exhaust manifold 9, the spacer ring 62 and the adapter flange 32.
  • the bottom part 16 can in turn be multi-layered and serves here additionally for receiving a sealing element 70.
  • FIG. 30 furthermore shows a connection 71 for supplying and / or removing a heat transfer medium, for example in the form of water or air.
  • a heat transfer medium located in an additional space 72 is also heated here by the hot exhaust gases in the gas guide channel 14 and can be used as a heater for a motor vehicle.
  • the heat transfer medium may also be in the form of a salt solution or alcohol in order to store the heat over a longer period of time.

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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)
  • Surgical Instruments (AREA)
  • Valve Device For Special Equipments (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)

Claims (30)

  1. Pipe d'échappement destinée à être montée sur une culasse d'un moteur à combustion interne munie de plusieurs perçages de gaz d'échappement pour la sortie des gaz d'échappement, comportant les particularités suivantes :
    1.1 un boîtier de collecteur de gaz d'échappement (9) destiné à recevoir les gaz d'échappement provenant de la culasse (2) ;
    1.2 un canal de guidage des gaz (14) disposé à l'intérieur du boîtier de collecteur de gaz d'échappement (9) ;
    1.3 une fente d'air (17) se trouve entre le boîtier de collecteur de gaz d'échappement (9) et le canal de guidage des gaz (14) ;
    1.4 un dispositif d'étanchéité (10) disposé entre le boîtier de collecteur de gaz d'échappement (9) et la culasse (2) ;
    1.5 le boîtier de collecteur de gaz d'échappement (9) comporte des évidements (12) au moyen desquels il peut être assemblé à la culasse (2) à l'aide de moyens de fixation (13);
    1.6 sur son côté dirigé vers la culasse (2), le canal de guidage des gaz (14) est pourvu d'une collerette (20, 38, 56) s'étendant sur au moins approximativement toute sa périphérie, qui est serrée au moins indirectement entre le boîtier de collecteur de gaz d'échappement (9) et le dispositif d'étanchéité (10) ou la culasse (2) ;
    1.7 le boîtier de collecteur de gaz d'échappement (9) comporte un retrait périphérique (22) dans lequel la collerette périphérique (20, 38, 56) du canal de guidage des gaz (14) est guidée d'une manière telle qu'il puisse se produire des déplacements provoqués par l'action de la chaleur entre le canal de guidage des gaz (14) et le dispositif d'étanchéité (10) et/ou entre le canal de guidage des gaz (14) et le boîtier de collecteur de gaz d'échappement (9).
  2. Pipe d'échappement selon la revendication 1,
    caractérisée en ce que
    le canal de guidage des gaz (14) comprend une partie principale (15) adaptée au contour du boîtier de collecteur de gaz d'échappement (9) et une partie de fond (16) disposée en direction du dispositif d'étanchéité (10), la partie de fond (16) étant pourvue de perçages (18) dont les positions correspondent au moins approximativement aux positions des perçages de gaz d'échappement (6) de la culasse (2).
  3. Pipe d'échappement selon la revendication 2
    caractérisée en ce que
    la partie de fond (16) est munie d'emboutis (19) dans la région comprise entre les perçages (18).
  4. Pipe d'échappement selon l'une des revendications 2 ou 3,
    caractérisée en ce que
    la collerette périphérique (20) du canal de guidage des gaz (14) se trouve le long de la partie principale (15) de ce canal, et en ce que la partie de fond (16) est pourvue d'une collerette périphérique (21) qui s'étend entre la collerette périphérique (20) de la partie principale (15) et le dispositif d'étanchéité (10).
  5. Pipe d'échappement selon l'une des revendications 1 à 4,
    caractérisée en ce que
    la partie de fond (16) comporte une partie rabattue (27) dirigée en s'éloignant du dispositif d'étanchéité (10) et qui est reliée rigidement à la partie principale (15), la partie rabattue (27) de la partie de fond (16) étant assemblée rigidement à une partie rabattue périphérique (28) s'étendant le long de la collerette périphérique (20) de la partie principale (15).
  6. Pipe d'échappement selon l'une des revendications 1 à 5,
    caractérisée en ce que
    le canal de guidage des gaz (14) est en céramique.
  7. Pipe d'échappement selon la revendication 6,
    caractérisée en ce que
    le dispositif d'étanchéité (10) comporte au moins un embouti (36) pointant en direction du canal de guidage des gaz (14) servant de partie de fond (16) pour le canal de guidage des gaz (14).
  8. Pipe d'échappement selon la revendication 6 ou 7,
    caractérisée en ce que
    une feuille de glissement (35) est disposée entre le canal de guidage des gaz (14) et le boîtier de collecteur de gaz d'échappement (9).
  9. Pipe d'échappement selon la revendication 1,
    caractérisée en ce que
    des conduites élémentaires (37) s'étendent du canal de guidage des gaz (14) jusqu'aux perçages de gaz d'échappement (6) respectifs et séparent les perçages de gaz d'échappement (6) les uns des autres.
  10. Pipe d'échappement selon la revendication 9,
    caractérisée en ce que,
    sur leur côté dirigé vers la culasse (2), les conduites (37) sont pourvues chacune d'une collerette périphérique (38) qui est serrée entre le boîtier de collecteur de gaz d'échappement (9) et le dispositif d'étanchéité (10).
  11. Pipe d'échappement selon la revendication 9 ou 10,
    caractérisée en ce que
    le canal de guidage des gaz (14) comporte une partie supérieure (40) et une partie inférieure (41) assemblée à la partie supérieure (40) à joint étanche aux gaz et disposée en direction du dispositif d'étanchéité (10), les conduites (37) étant associées à la partie inférieure (41), la partie supérieure (40) et la partie inférieure (41) étant soudées l'une à l'autre ou assemblées l'une à l'autre par sertissage.
  12. Pipe d'échappement selon la revendication 9 ou 10,
    caractérisée en ce que
    le canal de guidage des gaz (14) est composé de deux demi-coquilles (47, 48) au moins approximativement identiques, qui sont divisées dans la direction longitudinale du canal de guidage des gaz (14) et qui comportent chacune la moitié des conduites (37), les demi-coquilles (47, 48) étant soudées l'une à l'autre ou assemblées l'une à l'autre par sertissage.
  13. Pipe d'échappement selon l'une des revendications 1 à 12,
    caractérisée en ce que
    le boîtier de collecteur de gaz d'échappement (9) comporte une collerette périphérique (11) dans laquelle se trouvent les évidements (12) prévus pour les moyens de fixation (13).
  14. Pipe d'échappement selon l'une des revendications 1 à 13,
    caractérisée en ce que
    le dispositif d'étanchéité (10) disposé entre le boîtier de collecteur de gaz d'échappement (9) et la culasse (2) comporte des perçages (23) dont les positions correspondent au moins approximativement aux positions des perçages de gaz d'échappement (6), le dispositif d'étanchéité (10) disposé entre le boîtier de collecteur de gaz d'échappement (9) et la culasse (2) comportant une moulure périphérique (24) située en dehors des perçages (23), qui est en appui, d'une part, contre la culasse (2) et, d'autre part, contre le canal de guidage des gaz (14), pour former un joint étanche entre ces derniers.
  15. Pipe d'échappement selon la revendication 14,
    caractérisée en ce que
    en dehors de la première moulure (24), s'étend une deuxième moulure périphérique (25) qui est en appui, d'une part, contre la culasse (2) et, d'autre part, contre le boîtier de collecteur de gaz d'échappement (9) pour former un joint étanche entre ces derniers.
  16. Pipe d'échappement selon l'une des revendications 1 à 15,
    caractérisée en ce que
    entre le dispositif d'étanchéité (10) et le boîtier de collecteur de gaz d'échappement (9) est disposée une semelle formant adaptateur (32) adaptée à la forme du dispositif d'étanchéité (10) et destinée à obturer des perçages de la culasse (2).
  17. Pipe d'échappement selon la revendication 16,
    caractérisée en ce que
    un dispositif d'étanchéité (31, 33) supplémentaire est disposé entre le boîtier de collecteur de gaz d'échappement (9) et la semelle formant adaptateur (32).
  18. Pipe d'échappement selon l'une des revendications 1 à 17,
    caractérisée en ce que
    le retrait (22, 30) est formé par un dispositif d'étanchéité (33) disposé entre le boîtier de collecteur de gaz d'échappement (9) et le dispositif d'étanchéité (10).
  19. Pipe d'échappement selon l'une des revendications 1 à 18,
    caractérisée en ce que
    à l'intérieur du boîtier de collecteur de gaz d'échappement (9), sont disposées des conduites (50, 51, 52) qui forment un canal de guidage des gaz (13), les gaz d'échappement provenant des différents perçages de gaz d'échappement (6) étant séparés les uns des autres par les conduites (50, 51, 52), les conduites (50, 51, 52) étant tenues par le boîtier de collecteur de gaz d'échappement (9) de telle manière qu'il puisse se produire des mouvements des conduites (50, 51, 52) provoqués par l'action de la chaleur, et les conduites (50, 51, 52) s'étendant au moins jusqu'au point où le boîtier de collecteur de gaz d'échappement (9) se transforme en une conduite de gaz d'échappement (8).
  20. Pipe d'échappement selon la revendication 19,
    caractérisée en ce que
    les conduites (50, 51, 52) sont composées chacune de plusieurs déflecteurs élémentaires (50a, 50b, 51a, 51b, 52a, 52b ; 58, 59, 60), les déflecteurs (50a, 50b, 51a, 51b, 52a, 52b ; 58, 59, 60) étant pourvus chacun, sur son côté dirigé vers la culasse (2), d'une collerette (56) qui est dirigée dans le retrait périphérique (22, 30) de telle manière qu'il puisse se produire des déplacements provoqués par l'action de la chaleur entre les conduites (50, 51, 52) et le dispositif d'étanchéité (10) et/ou entre les conduites (50, 51, 52) et le boîtier de collecteur de gaz d'échappement (9) .
  21. Pipe d'échappement selon l'une des revendications 19 ou 20,
    caractérisée en ce que
    les perçages de gaz d'échappement (6) voisins sont séparés les uns des autres par des déflecteurs (50a, 50b, 51a, 51b, 52a, 52b ; 58, 59, 60).
  22. Pipe d'échappement selon l'une des revendications 19 ou 20,
    caractérisée en ce que,
    pour chaque perçage de gaz d'échappement (6), sont prévus deux déflecteurs (50a, 50b, 51a, 51b, 52a, 52b ; 58, 59, 60) qui sont disposés chacun à proximité immédiate du perçage de gaz d'échappement (6).
  23. Pipe d'échappement selon l'une des revendications 19 à 22,
    caractérisée en ce que
    entre les déflecteurs élémentaires (50a, 50b, 51a, 51b, 52a, 52b ; 58, 59, 60) et le dispositif d'étanchéité (10), est disposée une plaque de fond (53) qui est pourvue de perçages (54) dont les positions correspondent au moins approximativement aux positions des perçages de gaz d'échappement (6) de la culasse (2).
  24. Pipe d'échappement selon la revendication 23,
    caractérisée en ce que
    la plaque de fond (53) est pourvue d'emboutis (55) dans la région comprise entre les perçages (54).
  25. Pipe d'échappement selon la revendication 23 ou 24,
    caractérisée en ce que
    la plaque de fond (53) est pourvue d'une collerette périphérique (57) qui s'étend entre la collerette périphérique (56) des déflecteurs (50a, 50b, 51a, 51b, 52a, 52b ; 58, 59, 60) et le dispositif d'étanchéité (10).
  26. Pipe d'échappement selon l'une des revendications 1 à 25,
    caractérisée en ce que
    entre le boîtier de collecteur de gaz d'échappement (9) et le dispositif d'étanchéité (10), est disposée une bague entretoise (62) qui est assemblée au boîtier de collecteur de gaz d'échappement (9) au moyen d'un cordon de soudure (63).
  27. Pipe d'échappement selon l'une des revendications 1 à 26,
    caractérisée en ce que
    une plaque de fond multicouche (64) est disposée entre le boîtier de collecteur de gaz d'échappement (9) et le dispositif d'étanchéité (10).
  28. Pipe d'échappement selon l'une des revendications 1 à 27,
    caractérisée en ce que
    la fente d'air (17) est comblée au moyen d'un élément tricoté (66).
  29. Pipe d'échappement selon l'une des revendications 1 à 27,
    caractérisée en ce que
    la fente d'air (17) est comblée au moyen d'un milieu accumulateur de chaleur (67), des tubes d'échangeur de chaleur (68) s'étendant à travers le milieu accumulateur de chaleur (67).
  30. Pipe d'échappement selon l'une des revendications 1 à 29,
    caractérisée en ce que
    une paroi additionnelle (69) est disposée entre le canal de guidage des gaz (14) et le boîtier de collecteur de gaz d'échappement (9), la paroi (69) formant, avec le boîtier de collecteur de gaz d'échappement (9), un autre espace (72) dans lequel se trouve un milieu accumulateur de chaleur.
EP02712862A 2001-01-29 2002-01-28 Collecteur d'echappement Expired - Lifetime EP1389267B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE20101644U 2001-01-29
DE20101645U 2001-01-29
DE20101645U DE20101645U1 (de) 2001-01-29 2001-01-29 Abgaskrümmer
DE20101644U DE20101644U1 (de) 2001-01-29 2001-01-29 Abgaskrümmer
PCT/EP2002/000858 WO2002073010A2 (fr) 2001-01-29 2002-01-28 Collecteur d'echappement

Publications (2)

Publication Number Publication Date
EP1389267A2 EP1389267A2 (fr) 2004-02-18
EP1389267B1 true EP1389267B1 (fr) 2006-03-29

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ID=26056792

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Country Link
EP (1) EP1389267B1 (fr)
AT (1) ATE321937T1 (fr)
DE (1) DE50206229D1 (fr)
WO (1) WO2002073010A2 (fr)

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FR2908821A1 (fr) * 2006-11-20 2008-05-23 Renault Sas Ensemble collecteur d'echappement/culasse pour moteur a combustion interne
DE102009037520A1 (de) 2009-08-17 2011-04-21 Poroson Gmbh Abgaskrümmer
DE102009037505A1 (de) 2009-08-17 2011-05-05 Poroson Gmbh Abgaskrümmer für eine Brennkraftmaschine
DE102014105656A1 (de) * 2014-04-22 2015-10-22 Benteler Automobiltechnik Gmbh Abgaskrümmer
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FR2908821A1 (fr) * 2006-11-20 2008-05-23 Renault Sas Ensemble collecteur d'echappement/culasse pour moteur a combustion interne
DE102009037520A1 (de) 2009-08-17 2011-04-21 Poroson Gmbh Abgaskrümmer
DE102009037505A1 (de) 2009-08-17 2011-05-05 Poroson Gmbh Abgaskrümmer für eine Brennkraftmaschine
DE102014105656A1 (de) * 2014-04-22 2015-10-22 Benteler Automobiltechnik Gmbh Abgaskrümmer
EP2937539A1 (fr) 2014-04-22 2015-10-28 Benteler Automobiltechnik GmbH Collecteur de gaz d'échappement
DE102014105656B4 (de) 2014-04-22 2017-02-02 Benteler Automobiltechnik Gmbh Abgaskrümmer
DE102016204286A1 (de) * 2016-03-16 2017-09-21 Bayerische Motoren Werke Aktiengesellschaft Abgasanlage, Abgasrohr, Abgasschalldämpfer, Abgaskatalysator und Krümmerrohr für Kraftfahrzeug

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WO2002073010A2 (fr) 2002-09-19
DE50206229D1 (de) 2006-05-18
WO2002073010A3 (fr) 2003-11-27
ATE321937T1 (de) 2006-04-15
EP1389267A2 (fr) 2004-02-18

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