EP1467070A1 - Kombinierte Abgasnachbehandlungs- /Schalldämpfungsvorrichtung im Abgasstrang einer Brennkraftmaschine - Google Patents
Kombinierte Abgasnachbehandlungs- /Schalldämpfungsvorrichtung im Abgasstrang einer Brennkraftmaschine Download PDFInfo
- Publication number
- EP1467070A1 EP1467070A1 EP04007937A EP04007937A EP1467070A1 EP 1467070 A1 EP1467070 A1 EP 1467070A1 EP 04007937 A EP04007937 A EP 04007937A EP 04007937 A EP04007937 A EP 04007937A EP 1467070 A1 EP1467070 A1 EP 1467070A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- exhaust aftertreatment
- muffler
- module
- gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 5
- 230000003584 silencer Effects 0.000 title claims description 13
- 230000002093 peripheral effect Effects 0.000 claims abstract description 13
- 230000003647 oxidation Effects 0.000 claims abstract description 8
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 8
- 238000013016 damping Methods 0.000 claims abstract description 7
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 16
- 239000003054 catalyst Substances 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 5
- 230000007797 corrosion Effects 0.000 claims description 5
- 238000005260 corrosion Methods 0.000 claims description 5
- 238000013461 design Methods 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 229910000963 austenitic stainless steel Inorganic materials 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 230000002238 attenuated effect Effects 0.000 claims description 3
- 230000003197 catalytic effect Effects 0.000 claims description 3
- 239000011358 absorbing material Substances 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 description 9
- 238000010521 absorption reaction Methods 0.000 description 6
- 230000030279 gene silencing Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 210000000056 organ Anatomy 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009924 canning Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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- 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
- F01N13/1888—Construction facilitating manufacture, assembly, or disassembly the housing of the assembly consisting of two or more parts, e.g. two half-shells
- F01N13/1894—Construction facilitating manufacture, assembly, or disassembly the housing of the assembly consisting of two or more parts, e.g. two half-shells the parts being assembled in longitudinal direction
-
- 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
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/24—Silencing apparatus characterised by method of silencing by using sound-absorbing 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
- F01N13/009—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 two or more separate purifying devices arranged in series
- F01N13/0097—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 two or more separate purifying devices arranged in series the purifying devices are arranged in a single housing
-
- 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
- F01N13/011—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 two or more purifying devices arranged in parallel
- F01N13/017—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 two or more purifying devices arranged in parallel the purifying devices are arranged in a single housing
-
- 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
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
- F01N3/0231—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles using special exhaust apparatus upstream of the filter for producing nitrogen dioxide, e.g. for continuous filter regeneration systems [CRT]
-
- 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
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/033—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices
- F01N3/035—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors, e.g. catalysed diesel particulate filters
-
- 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
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
- F01N3/2882—Catalytic reactors combined or associated with other devices, e.g. exhaust silencers or other exhaust purification devices
- F01N3/2885—Catalytic reactors combined or associated with other devices, e.g. exhaust silencers or other exhaust purification devices with exhaust silencers in a single housing
-
- 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
- F01N2470/00—Structure or shape of gas passages, pipes or tubes
- F01N2470/16—Plurality of inlet tubes, e.g. discharging into different chambers
-
- 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
- F01N2470/00—Structure or shape of gas passages, pipes or tubes
- F01N2470/22—Inlet and outlet tubes being positioned on the same side of the apparatus
-
- 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
- F01N2490/00—Structure, disposition or shape of gas-chambers
- F01N2490/02—Two or more expansion chambers in series connected by means of tubes
-
- 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
- F01N2490/00—Structure, disposition or shape of gas-chambers
- F01N2490/02—Two or more expansion chambers in series connected by means of tubes
- F01N2490/06—Two or more expansion chambers in series connected by means of tubes the gases flowing longitudinally from inlet to outlet in opposite directions
-
- 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
- F01N2510/00—Surface coverings
- F01N2510/08—Surface coverings for corrosion prevention
-
- 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
- F01N2530/02—Corrosion resistive metals
-
- 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
- F01N2530/02—Corrosion resistive metals
- F01N2530/04—Steel alloys, e.g. stainless steel
Definitions
- the invention relates to a combined exhaust aftertreatment / Schalldämpfungsvoriques in the exhaust system of an internal combustion engine, in particular diesel engine of a commercial vehicle such as trucks or buses with features according to the preamble of claim 1.
- the task of the invention derives, namely, in exhaust aftertreatment / Schalldämpfungsvoriquesen the generic type with constructive Measures to create opportunities to address the problem of sulfuric acid Corrosion can be remedied cost-reducing.
- An essential basic idea of the invention is that the sulfuric acid-forming Exhaust gas aftertreatment within the muffler in at least one exhaust aftertreatment / noise attenuation module takes place and only to be cleaned of exhaust gas flowed through housing made of ferritic or austenitic stainless steel and it This makes it possible, the outer walls of the muffler and each inner organ in this like crosswall, the outside of the exhaust aftertreatment / noise attenuation module is made of unalloyed, aluminized or otherwise coated steel sheet manufacture. The latter requires lower material costs and lower tooling costs the silencer and as a whole also lower production costs for the entire system Exhaust aftertreatment / sound attenuation.
- the combined exhaust aftertreatment / silencing device according to the invention arranged in the exhaust system of an internal combustion engine, in which it is z. B. to a diesel engine of a commercial vehicle such as a truck or bus.
- This exhaust aftertreatment / silencing device is modular.
- the first module is basically the silencer in all embodiments of the invention 1. This is spatially generally by a front end wall 2, a rear end wall 3 and a peripheral outer wall 4 limited. This can be cylindrical and one have circular, oval, rectangular or square cross-section or also be barrel-shaped.
- the or all V-Kat 5 and the or each exhaust aftertreatment device (s) 6 are more integral Component of at least one according to the invention as a system core built into the muffler 1 Exhaust Aftertreatment / Silencing Module, hereinafter abbreviated as ON / SD module 7 is designated.
- the AN / SD module 7 has a composite of several parts Housing, depending on the three illustrated construction principles - see Fig. 3, Fig. 19, Fig. 22 - differently designed, split and assembled. Regardless of the different details, the housing has four successive sections 8, 9, 10, 11 (FIGS. 1 to 16) and 8 ', 9', 10 ', 11' (FIGS. 17 to 19) and 8 ", 9", 10 ", 11” (FIGS. 20 to 22), respectively.
- At least one V-cat 5 is installed in the first housing section 8, 8 ', 8 " extends to the first section 8, 8 ', 8 "subsequent second housing section 9, 9', 9” is funnel-shaped on a larger cross section and forms an overflow chamber 12, 12 ', 12 ".
- the third housing section adjoining the second section 9, 9', 9" 10, 10 ', 10 deceives at least one exhaust aftertreatment device 6.
- all parts or sections 8, 9, 10, 11 or 8 ', 9', 10 ', 11' or 8 ", 9", 10 ", 11” of the housing of the AN / SD module 7 made of sulfuric acid-resistant ferritic or austenitic stainless steel, whereas all outer walls 2, 3, 4, an inlet tube 13 and each inner member such as transverse or support wall of the muffler 1, the outside of the AN / SD module 7 is made of non-alloy and for corrosion protection purposes aluminized or coated with other corrosion protection material steel sheet are made, for.
- the connection between the end walls 2, 3 and the peripheral wall 4 of the muffler 1 is performed by known methods such as folding.
- Muffler 1 thus serves as Canning for the materially higher quality and more costly system core formed by the AN / SD module (s) 7 and protects it during operation against mechanical influences. It also serves the muffler 1, preferably also as a high-pass filter for the low-frequency silencing area serving as a preheating chamber for the AN / SD module (s) 7 and ensures an optimal temperature around the latter (s).
- the AN / SD module 7 shown in detail in FIG. 3 consists of the first construction principle a housing composed of two parts.
- the division of the housing is on two places makes sense, with the interface either between the second housing section 8 and third housing section 9 or between the third housing section 10 and the fourth, so the housing end portion 11 may lie.
- the first housing section 8 is formed here circular cylindrical and hugs the outside the built-in V-cat 5 at.
- the second, the overflow chamber 12 limiting housing section 9 connects coaxially to the first housing section 8.
- the outside conforms to the built-in exhaust aftertreatment device 6.
- the fourth, so the end portion 11 of the housing closes with its funnel-shaped tapered beginning 11/1 coaxial with the same diameter starting from the Diameter of the third housing portion 10 of the latter and goes into a circular cylindrical End pipe 11/2 over, with which he gas-tight out of the muffler 1 to the outside is.
- the two housing parts together with the installed V-Kat 5 and exhaust aftertreatment device 6 each one independent of the other to be produced sub-module within the AN / SD module 7.
- the two submodules are used in the final assembly at the provided interface, wherein the connection to the adjoining Housing sections either gas tight tight, z. B. by welding, or via a gas-tight Connecting mechanism are releasably connected together.
- the detachable connection is more expensive, but allows in the event of a defect, a quick replacement of the Exhaust gas after-treatment device 6.
- the housing end portion 11 may for the purpose of soundproofing wholly or partly perforated or equipped with individual holes 14 - see Fig. 8, 9, 10, 11, 14, 15 - and / or either on the whole length or only part of the length with soundproofing or absorbing material 15 to be coated - see Fig. 7, 8, 9, 10, 11, 12, 14, 15.
- the two sub-modules form a prefabricated AN / SD module 7, the then installed as a system core in the muffler 1.
- installation position of the AN / SD module 7 can with this due to its design according to the invention in the field of his Housing end portion 11 with the enormously large free cross-section of the hopper absorption path the muzzle sound especially in the high and medium frequency range be damped without noticeable pressure loss. This does not happen as usual Reflection of the sound waves, but by converting the sound energy into heat.
- FIG. 1 shows the inlet pipe 13 centrally in the front end wall 2 of the muffler 1 arranged and coaxially aligned with the AN / SD module 7 installed in the muffler 1 and with centrally through the rear end wall 3 of the muffler 1 led out gas-tight Tailpipe 11/2.
- the AN / SD module 7 Internally of the muffler 1, the AN / SD module 7 is approximately in the Centered along its length by a non-gas-tight transverse wall 16 in the installed position, the perforated or has breakthroughs, so that the AN / SD module 7 on the entire installation length in the muffler 1 outside of exhaust gas for its preheating is um Hughesbar.
- the transverse wall 16 also forms a muffler in the muffler 1. After installation of the AN / SD module 7 in the muffler interior is the rear end wall 3 of the muffler 1 with the circumferential outer wall 4 z. B. connected by crimping the edge.
- Fig. 4 shows the inlet tube 13 selectively either eccentrically through the front end wall 2 or radially through the circumferential outer wall 4 going.
- the AN / SD module 7 is eccentric installed parallel to the longitudinal axis LA of the muffler 1 in the interior thereof, so, that the tailpipe 11/2 guided gas-tight through the front end wall 2 to the outside and the Entry cross-section is arranged at a greater distance from the rear end wall 3.
- the muffler 1 is the AN / SD module 7 by two axially spaced apart Transverse walls 17, 18 held in position, these two transverse walls 17, 18 the Subdividing the silencer interior into three chambers, namely a front exhaust gas inlet chamber 19, a middle heat chamber 20 and a rear transfer chamber 21.
- the Transverse wall 17 is preferably gas-tight, the transverse wall 18, however, is preferably gas-permeable, z. B. perforated or provided with openings.
- the transverse walls 17, 18 and The tube 22 also form sound absorbing organs in the muffler. 1
- Fig. 5 shows the AN / SD module 7 in the same manner in the muffler 1 as in the case of Fig. 1, 2 installed.
- the inlet pipe 13 is relatively far central in the interior of the muffler 1 extends into it, there end by a transverse wall 16th parallel second transverse wall 23 and passed in the area between this transverse wall 23rd as well as the front end wall 2 of the muffler 1 is perforated or provided with holes 24.
- the transverse walls 16, 23 are both gas permeable, z. B.
- Fig. 6 shows the inlet pipe 13 eccentric and parallel to the longitudinal axis LA of the muffler 1 relatively far into this until about the middle of its longitudinal extension protruding and there by two widely spaced, by perforation or breakthroughs gas permeable trained transverse walls 28, 29 passed.
- These transverse walls 28, 29 serve as a silencer-internal support on the one hand for the inlet pipe 13, on the other the next, also eccentric and parallel to the longitudinal axis of the muffler 1 in this built-in AN / SD module 7.
- the two transverse walls 28, 29 divide the muffler interior in a front chamber 30, middle chamber 31 and rear chamber 32.
- the inlet pipe 13 is perforated in the region of the front and middle chambers 30, 31 or provided with holes 33, 34, so that the exhaust gas via the inlet pipe 13 substantially although it can be fed into the rear chamber 32, but partially also over the holes 33, 34 can also enter the front and middle chambers 30, 31. It is also in In this example, the input section 8 of the housing on the inlet side in front of the installation area of the V-Kat 5 extended forward to the front bulkhead 28 and in this area perforated or provided with holes 35.
- the exhaust gas fed into the muffler 1 flows from the rear chamber 32 via the middle chamber 31 to the front chamber 30 and occurs from there through an opening 36 in the front transverse wall 28 and from the middle chamber 31 via the holes 35 in the AN / SD module 7 and leaves this cleaned after its flow through the latter in the rear end wall.
- the silencer 1 gas-tight led out end pipe 11/2.
- the transverse walls 28, 29 and the internal part of the inlet pipe 13 also serve for soundproofing.
- Fig. 7 shows an embodiment of the AN / SD module 7, wherein the housing end portion 11 has a U-shaped course, with which the purified exhaust gas via the tailpipe 11/2 on the side of entry again from the muffler 1 is divertible.
- the inlet pipe 13 penetrates eccentrically the front end wall 3 and protrudes only slightly into the interior of the muffler 1 inside.
- the housing sections Coaxially with the inlet pipe 13, the housing sections extend 8, 9, 10 and 11/1 of the AN / SD module 7.
- a gas-permeable means of perforation or breakthroughs made transverse wall 37 is provided.
- the first housing section 8 In a lower breakthrough of the same is the first housing section 8 and in an upper opening the end pipe 11/2 of the housing section 11 held.
- the transverse wall 37 divides the muffler interior into a front chamber 38 and rear chamber 39 and serves together with the relatively long Tailpipe 11/2 also for soundproofing.
- Fig. 8 shows the AN / SD module 7 in comparison to the example of FIG. 1 axially closer to Achievements inlet tube 13 and designed with a longer tail pipe 11/2. Furthermore the housing end portion 11 is provided with a perforation or holes 14 and on almost full length with an outer layer 15 of Schalldämpfungs- or absorption material coated.
- the embodiment according to FIG. 9 differs from that according to FIG. 8 in that only the tail pipe 11/2 provided with a perforation or holes 14 and the outside with a Layer 15 is coated from damping or absorption material.
- FIG. 10 differs from that according to FIG. 8 in that in that a venturi 40 is installed in the end tube 11/2 of the housing end section 11, which contributes to a further reduction of the sound level at the outlet.
- the embodiments according to FIGS. 11 and 12 differ from the embodiments 1 to 10 in that the housing end portion 11 is not rectilinear, but curved funnel-shaped starting from the housing portion 10, initially cylindrical and then with a quarter-arc to the cylindrical tail pipe 11/2 tapering, the here led out laterally through the peripheral outer wall 4 of the muffler 1 from this is.
- the housing end section 11 is perforated in the region 11/1 or with holes 14 provided and externally coated with a Schalldämpfungs- or absorption material 15.
- the embodiment according to FIG. 11 in the case of that according to FIG.
- Fig. 13 shows an embodiment similar to that of Fig. 6.
- the muffler 1 has here no circular, but approximately rectangular cross-section.
- the inlet pipe 13 eccentric and parallel to the longitudinal muffler axis LA in the Inserted inside the silencer interior and penetrates there through two perforations or holes made gas-permeable transverse walls 41, 42.
- This AN / SD module 7 is similar to that of FIG. 12, the end tube 11/2 of the housing end portion 11 is not straight, but angled and about the height of entry 13 led out laterally through the peripheral outer wall 4 of the muffler 1.
- this AN / SD module 7 Built this AN / SD module 7 in the muffler 1 so that its housing parts 8, 9, 10 with the installed V-Kat 5 and exhaust aftertreatment device 6 in the upper Extend region and parallel to the longitudinal axis LA of the muffler 1. Is held this AN / SD module 7 as well as the inlet tube 13 through the transverse walls 41, 42, the as well as the inlet tube 13 and the housing end portion 11 for soundproofing serve.
- the transverse walls 41, 42 divide the muffler interior into a front Chamber 43, middle chamber 44 and rear chamber 45.
- the inlet tube 13 is here in the area the middle (44) and rear chamber 45 perforated or provided with holes 46, so that exhaust gas from the inlet pipe 13 not only in the rear chamber 45, but in less Scope can also laterally into the middle and rear chambers 44, 45 can occur. From there the exhaust gas passes through the permeable transverse walls 41, 42 back into the front chamber 43, from where it can enter the AN / SD module 7 for its flow.
- FIG. 14 is similar to that of FIG. 8.
- the main difference is that here the AN / SD module 7 easily replaceable in the muffler. 1 arranged and attached thereto for an end plate 47, which is the central part of the two-part here rear end wall 3 of the muffler 1 forms.
- the outer annular portion 48 of End wall 3 is united with the peripheral outer wall 4 by folding and the end plate 47th with the AN / SD module 7 is on the annular part 48 by means of several clamping or screw connections 49 attached.
- this AN / SD module 7 could be used internally Silencer 1 still be supported by a transverse wall 16 (as in Fig. 8).
- FIGS. 15 and 16 has two AN / SD modules 7 which are also in FIG Fig. 9 used on. However, these have differently long tailpipes 11/2 at their housing end portions 11, so that they, as shown in Fig. 15, axially offset from one another, but each parallel to the longitudinal axis LA of the muffler 1 and in axial projection partially overlapping in the latter are installable.
- a non-gastight transverse wall 50 holds the two AN / SD modules 7 in the installed position, the other holder point for this is given by the rear end wall 3 of the muffler 1, through which they with their tailpipes 11/2 are led out gas-tight.
- FIGS. 17 to 19 show an embodiment of the invention with one after one second rationale framed AN / SD module 7.
- This the system core in the muffler 1 forming AN / SD module 7 consists of several - in the illustrated case four - exhaust aftertreatment modules together, which open into a housing end portion 11 '.
- all exhaust aftertreatment modules are preferably the same design and configured and have in each case a separate housing at the beginning of a V-Kat 5, output an exhaust aftertreatment device 6 installed and in between a down to the latter funnel-shaped extending overflow chamber 12 '.
- the housing of this AN / SD module 7 is therefore made of the housings of the exhaust aftertreatment modules and the common Housing end portion 11 'together.
- the first housing section will be here formed by the first housing sections 8 'of the exhaust aftertreatment modules. Of the second housing section is here through the second housing sections 9 'of the exhaust aftertreatment modules educated.
- the third housing section is here through the third Housing sections 10 'of the exhaust aftertreatment modules formed. Every first housing section 8 'is formed in each case circular cylindrical and hugs the outside of the in him built-in V-Kat 5 on. At each of these first housing sections 8 closes coaxially a funnel-shaped expanding, an overflow chamber 12 'limiting second housing section 9 'and in turn coaxial to a circular cylindrical third housing section 10 'on. In this case, each first housing section 8 'hugs the outside of it built-in V-Kat 5 on.
- each third housing portion 10 hugs the outside to the built-in exhaust aftertreatment device 6 at.
- These prefabricated exhaust aftertreatment modules are with their housings axially parallel to each other and to the longitudinal axis arranged in the interior of the muffler 1 and penetrate each case a breakthrough in a transverse wall 51, fitted gas-tight out there.
- This transverse wall 51 separates in the muffler 1 a Abgaseinströmhunt 52 from another chamber 53.
- the exhaust gas passes through the inlet pipe 13.
- Each the exhaust aftertreatment modules communicates on the input side with the exhaust gas inflow chamber 52 and ends on the output side in the housing end portion 51.
- the latter surrounds in this type of AN / SD module 7 with its substantially rectangular initial area 11/1 ', the third housing sections 10' of the exhaust aftertreatment modules outside peripherally and nestles with its rounded corners - as shown in Fig. 18 visible - on peripheral portions of the same form-fitting manner.
- the housing end portion 11 'tapers with a at the initial region 11/1 'subsequent central region 11/2' to a circular cylindrical End tube 11/3 'out, with the housing end portion 11 gas-tight from the muffler. 1 led out.
- Figures 20 to 22 show a further embodiment of the invention with a after a third basic principle designed AN / SD module 7.
- This the system core in the muffler 1 forming AN / SD module 7 has a plurality of individually prefabricated part housings 8 ", 9", 10 ", 11" composite housing. It is in the preferred circular cylindrical first housing section 8 "built a V-Kat 5. Coaxial to this first housing section 8 "is followed behind the V-Kat 5 a funnel-like widening, an overflow chamber 12 "limiting second housing portion 9" at the end gas-tight connected to a transverse wall 54 ends.
- This transverse wall 54 separates in Silencer 1, a front Abgaseinströmhunt 55 from a rear chamber 56th Des Furthermore, this AN / SD module 7 has a plurality of exhaust aftertreatment modules - in illustrated example two -, each of which in a sub-housing 10 "a built-in exhaust aftertreatment device 6 and together with this a prefabricatable exhaust aftertreatment module forms. Each of these exhaust aftertreatment modules communicates with its sub-housing 10 "via a coaxial aperture 57 in the transverse wall 54th with the overflow chamber 12 "and is with its part housing 10" end gastight on the Transverse wall 54 connected.
- each of these exhaust aftertreatment modules with an outer peripheral portion of its housing 10 "form fit to an inner Enclosed peripheral portion of the housing end portion 11 ", with its cylindrical, in the cross section here oval start area 11/1 "this sub-housing 10" of the exhaust aftertreatment modules peripherally surrounds outside, furthermore gas-tight or over the front side a gas-tight, but releasable connection mechanism attached to the transverse wall 54 is.
- the housing end portion tapers 11 "with its at the beginning of 11/1" adjoining middle area 11/2 "to an end portion 11/3" out, in the example shown by a circular cylindrical End tube is formed, with which the housing end portion 11 "gas-tight from the Silencer 1 is led out.
- the housing sections 8 “and 9" form the beginning built-V-Kat 5 also a prefabricated module, which then with the transverse wall 54 is united.
- the respective housing end section 11 'or 11 "in the region of its beginning and middle part 11/1', 11/1" and 11/2 ', 11/2 " is preferably realized in a two-ply half-shell construction, ie in each case one prefabricated one inner and outer upper half shell comes with an inner and outer lower Half shell united, in which then double-walled part of the tailpipe 11/3 'and 11/3 "gas-tight is installed. This results in installation position of the AN / SD module 7, a housing end portion 11 'or 11 "with integrated sound absorption.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Exhaust Silencers (AREA)
- Exhaust Gas After Treatment (AREA)
- Processes For Solid Components From Exhaust (AREA)
Abstract
Description
- Fig. 1
- einen Längsschnitt und Fig. 2 einen Querschnitt durch ein erstes Ausführungsbeispiel der Erfindung mit einem nach einem ersten Grundprinzip gestalteten Abgasnachbehandlungs-/Schalldämpfungsmodul, der in Fig. 3 einzeln im Längsschnitt dargestellt ist,
- Fig. 4 bis 14
- im Längsschnitt jeweils ein weiteres Ausführungsbeispiel der Erfindung mit einem Abgasnachbehandlungs-/Schalldämpfungsmodul der in Fig. 3 dargestellten Bauart,
- Fig. 15
- im Längsschnitt und Fig. 16 im Querschnitt ein weiteres Ausführungsbeispiel der Erfindung mit zwei Abgasnachbehandlungs-/Schalldämpfungsmodulen der in Fig. 3 gezeigten Bauart,
- Fig. 17
- einen Längsschnitt und Fig. 18 einen Querschnitt durch ein weiteres Ausführungsbeispiel der Erfindung mit einen nach einem zweiten Grundprinzip gestalteten Abgasnachbehandlungs-/Schalldämpfungsmodul, der in Fig. 19 einzeln im Längsschnitt dargestellt ist,
- Fig. 20
- einen Längsschnitt und Fig. 21 einen Querschnitt durch ein weiteres Ausführungsbeispiel der Erfindung mit einem nach einem dritten Grundprinzip gestalteten Abgasnachbehandlungs-/Schalldämpfungsmodul, der in Fig. 22 einzeln im Längsschnitt dargestellt ist.
Claims (11)
- Kombinierte Abgasnachbehandlungs-/Schalldämpfungsvorrichtung im Abgasstrang einer Brennkraftmaschine, insbesondere Dieselmotor eines Nutzfahrzeuges wie Lastkraftwagen oder Omnibus, mit einem Schalldämpfer, der räumlich durch eine vordere und hintere Stirnwand sowie eine Umfangsaußenwand begrenzt ist und in dessen Innenraum wenigstens ein den NO2-Anteil im durchströmenden Abgas signifikant erhöhender Voroxidationskatalysator und wenigstens eine Abgasnachbehandlungseinrichtung eingebaut sind, wobei nachzubehandelndes Abgas über ein Eintrittsrohr in den Schalldämpfer einleitbar ist und nach Durchströmung des Voroxidationskatalysators sowie der Abgasnachbehandlungseinrichtung gereinigt und mittelbar schallgedämpft wieder aus dem Schalldämpfer ausleitbar ist, dadurch gekennzeichnet,dass in den Schalldämpfer (1) als Systemkem wenigstens ein - nachfolgend AN-/SD-Modul genannter - Abgasnachbehandlungs-/Schalldämpfungs-Modul (7) eingebaut ist,dass der AN-/SD-Modul (7) ein aus mehreren Teilen zusammengesetztes Gehäuse aufweist,dass in einen ersten Abschnitt (8, 8', 8") des Gehäuses wenigstens ein Voroxidationskatalysator (5) eingebaut ist,dass sich an den ersten Abschnitt (8, 8', 8") ein zweiter Abschnitt (9, 9', 9") des Gehäuses anschließt, der sich trichterförmig erweitert und eine Überströmkammer (12, 12', 12") begrenzt,dass sich an den zweiten Abschnitt (9, 9', 9") ein dritter Abschnitt (10, 10', 10") des Gehäuses anschließt, in den wenigstens ein Abgasnachbehandlungsorgan (6) - Partikelfilter oder katalytischer Partikelabscheider oder Katalysator - eingebaut ist,dass sich an den dritten Abschnitt (10, 10', 10") des Gehäuses ein gereinigtes Abgas sammelnder und gedämpft aus dem Schalldämpfer (1) ausleitender Gehäuse-Endabschnitt (11, 11', 11 ") anschließt, unddass alle Gehäuse-Teile des AN-/SD-Moduls (7) aus schwefelsäureresistentem ferritischen oder austenitischem Edelstahl hergestellt sind, dagegen alle äußeren Wände (2, 3, 4), das Eintrittsrohr (13) und jedes innere Organ des Schalldämpfers (1) wie Quer- oder Stützwand, das außerhalb des AN-/SD-Moduls (7) gegeben ist, aus unlegiertem, zu Korrosionsschutzzwecken aluminierten oder anderweitig beschichtetem Stahlblech hergestellt sind.
- Kombinierte Abgasnachbehandlungs-/Schalldämpfungsvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass der den Systemkern im Schalldämpfer (1) bildende AN-/SD-Modul (7) ein aus zwei einzeln vorgefertigten Teilen zusammengesetztes Gehäuse aufweist, wobei entweder die beiden ersten (8, 9) oder die drei ersten Gehäuse-Abschnitte (8, 9, 10) den ersten Teil bilden und der dritte (10) und vierte (11) oder nur der vierte Gehäuse-Abschnitt (11) den zweiten Teil bildet, der im Anschluss an den ersten Teil mit diesem entweder fest oder über einen Verbindungsmechanismus lösbar verbunden ist.
- Kombinierte Abgasnachbehandlungs-/Schalldämpfungsvorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass der erste Gehäuse-Abschnitt (8) kreiszylindrisch ist und sich außen an den eingebauten Voroxidationskatalysator (5) anschmiegt, dass sich der zweite, die Überströmkammer (12) begrenzende Gehäuse-Abschnitt koaxial am ersten Gehäuse-Abschnitt (8) als trichterförmige Erweiterung und daran sich koaxial der kreiszylindrisch ausgebildete dritte Gehäuse-Abschnitt (10) anschließt, welcher sich außen an das in ihn eingebaute Abgasnachbehandlungsorgan (6) anschmiegt, und dass sich der ein Abgas-/Schalldämpfungsendrohr bildende vierte Gehäuse-Abschnitt (11) mit seinem Anfangsabschnitt (11/1) koaxial mit gleichen Durchmesser vom Durchmesser des dritten Gehäuse-Abschnitts (10) ausgehend trichterförmig verjüngt und in einen kreiszylindrischen Endabschnitt (11/2) übergeht, mit dem er gasdicht aus dem Schalldämpfer (1) herausgeführt ist.
- Kombinierte Abgasnachbehandlungs-/Schalldämpfungsvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass sich der den Systemkern im Schalldämpfer (1) bildende AN-/ SD-Modul (7) aus mehreren Abgasnachbehandlungsmodulen zusammensetzt, die in einen gemeinsamen Gehäuse-Endabschnitt (11') ausmünden.
- Kombinierte Abgasnachbehandlungs-/Schalldämpfungsvorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass die Abgasnachbehandlungsmodule dieses AN-/SD-Moduls (7) alle gleich ausgebildet und ausgestaltet sind und in jeweils einem Gehäuse eingangs einen V-Kat (5) sowie ausgangs ein Abgasnachbehandlungsorgan (6) eingebaut und dazwischen eine sich zu letzterem hin sich trichterförmig erweiternde Überströmkammer (12') aufweisen.
- Kombinierte Abgasnachbehandlungs-/Schalldämpfungsvorrichtung nach einem der Ansprüche 4 und 5, dadurch gekennzeichnet, dass die Abgasnachbehandlungsmodule dieses AS-/SD-Moduls (7) mit ihren Gehäusen achsparallel zueinander und zur Längsachse (LA) des Schalldämpfers (1) im Innenraum desselben angeordnet sind und Durchbrüche in einer Querwand (51), dort außen gasdicht eingepasst, durchdringen, welche Querwand (51) eine Abgaseinströmkammer (52) von einer weiteren Kammer (53) im Schalldämpfer (1) trennt, und dass jeder dieser Abgasnachbehandlungsmodule eingangsseitig mit der Abgaseinströmkammer (52) kommuniziert und ausgangsseitig in den Gehäuse-Endabschnitt (11') ausmündet.
- Kombinierte Abgasnachbehandlungs-/Schalldämpfungsvorrichtung nach einem der Ansprüche 4 bis 6, dadurch gekennzeichnet, dass sich das Gehäuse dieses AN-/SD-Moduls (7) aus den Gehäusen der Abgasnachbehandlungsmodule und dem Gehäuse-Endabschnitt (11') zusammensetzt, wobei der erste Gehäuse-Abschnitt hier durch die ersten Gehäuse-Abschnitte (8') der Abgasnachbehandlungsmodule gebildet ist, wobei ferner der zweite Gehäuse-Abschnitt durch die sich trichterförmig erweiternden Gehäuse-Abschnitte (9') der Abgasnachbehandlungsmodule gebildet ist und wobei der dritte Gehäuse-Abschnitt durch die dritten Gehäuse-Abschnitte (10') der Abgasnachbehandlungsmodule gebildet ist, wobei außerdem jeder erste Gehäuse-Abschnitt (8') kreiszylndrisch ausgebildet ist und sich außen an den in ihn eingebauten Voroxidationskatalysator (5) anschmiegt, wobei sich ferner koaxial an diesen ersten Gehäuse-Abschnitt (8') sich der zweite, sich trichterförmig erweiternde, eine Überströmkammer (12') begrenzende Gehäuse-Abschnitt (9') und daran sich koaxial der kreiszylindrische dritte Gehäuse-Abschnitt (10') anschließt, der sich außen an das in ihn eingebaute Abgasnachbehandlungsorgan (6) anschmiegt.
- Kombinierte Abgasnachbehandlungs-/Schalldämpfungsvorrichtung nach einem der Ansprüche 4 bis 7, dadurch gekennzeichnet, dass der Gehäuse-Endabschnitt (11') mit seinem Anfangsbereich (11/1') die dritten Gehäuse-Abschnitte (10') der Abgasnachbehandlungsmodule außen peripher und an Umfangsabschnitte derselben formschlüssig angeschmiegt umgibt, femer stirnseitig gasdicht fest oder über einen gasdichten, aber lösbaren Verbindungsmechanismus an der Querwand (51) befestigt ist und sich mit seinem Mittelbereich (11/2') hinter den Austrittsebenen der Abgasnachbehandlungsmodule trichterförmig zu einem Endbereich (11/3') hin verjüngt, der vorzugsweise durch ein kreiszylindrisches Endrohr gebildet ist, mit dem der Gehäuse-Endabschnitt (11') gasdicht aus dem Schalldämpfer (1) herausgeführt ist.
- Kombinierte Abgasnachbehandlungs-/Schalldämpfungsvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass der den Systemkern im Schalldämpfer (1) bildende AN-/SD-Modul (7) ein aus mehreren einzeln vorgefertigten Teilgehäusen (8", 9", 10", 11 ") zusammengesetztes Gehäuse aufweist, dass dabei in den vorzugsweise kreiszylindrischen ersten Gehäuse-Abschnitt (8") ein Voroxidationskatalysator (5) eingebaut ist, dass sich koaxial an diesen ersten Gehäuse-Abschnitt (8") ein sich trichterförmig erweiternder, eine Überströmkammer (12") begrenzender zweiter Gehäuse-Abschnitt (9") anschließt, der endseitig gasdicht an einer Querwand (54) angeschlossen ist, die im Schalldämpfer (1) eine Abgaseinströmkammer (55) von einer anderen Kammer (56) desselben trennt, dass dieser AN-/SD-Modul (7) des weiteren mehrere Abgasnachbehandlungsmodule aufweist, von denen jeder in einem Teilgehäuse (10") ein dort eingebautes Abgasnachbehandlungsorgan (6) aufnimmt, dass ferner jeder dieser Abgasnachbehandlungsmodule mit seinem Teilgehäuse (10") jeweils über einen Durchbruch (57) in der Querwand (54) mit der Überströmkammer (12") kommuniziert, außerdem stirnseitig gasdicht an der Querwand (54) angeschlossen ist und mit einem äußeren Umfangsabschnitt formschlüssig an einen inneren Umfangsbereich des Gehäuse-Endabschnitts (11") angeschmiegt ist, und dass dieser Gehäuse-Endabschnitt (11") mit seinem Anfangsbereich (11/1") die Teilgehäuse (10") der Abgasnachbehandlungsmodule außen peripher umgibt, ferner stirnseitig gasdicht fest oder über einen gasdichten, aber lösbaren Verbindungsmechanismus an der Querwand (54) befestigt ist und sich mit seinem Mittelbereich (11/2") hinter den Austrittsebenen der Abgasnachbehandlungsmodule zu einem Endbereich (11/3") hin verjüngt, der vorzugsweise durch kreiszylindrisches Endrohr gebildet ist, mit dem der Gehäuse-Endabschnitt (11 ") gasdicht aus dem Schalldämpfer (1) herausgeführt ist.
- Kombinierte Abgasnachbehandlungs-/Schalldämpfungsvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Gehäuse-Endabschnitt (11, 11', 11" zu Schalldämpfungszwecken ganz oder teilweise perforiert oder mit einzelnen Löchern versehen und/oder außen auf ganzer Länge oder nur einer Teillänge mit Schalldämpfungsmaterial beschichtet ist.
- Kombinierte Abgasnachbehandlungs-/Schalldämpfungsvorrichtung nach einem der Ansprüche 2 und 3, dadurch gekennzeichnet, dass der AN-/SD-Modul (7) über wenigstens eine gasdichte oder abgasdurchlässige Querwand oder Halterung im Schalldämpfer-Innenraum lagefixiert ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE10316799A DE10316799A1 (de) | 2003-04-11 | 2003-04-11 | Kombinierte Abgasnachbehandlungs-/Schalldämpfungsvorrichtung im Abgasstrang einer Brennkraftmaschine |
DE10316799 | 2003-04-11 |
Publications (2)
Publication Number | Publication Date |
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EP1467070A1 true EP1467070A1 (de) | 2004-10-13 |
EP1467070B1 EP1467070B1 (de) | 2006-03-08 |
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EP04007937A Expired - Lifetime EP1467070B1 (de) | 2003-04-11 | 2004-04-01 | Kombinierte Abgasnachbehandlungs- /Schalldämpfungsvorrichtung im Abgasstrang einer Brennkraftmaschine |
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US (1) | US7273592B2 (de) |
EP (1) | EP1467070B1 (de) |
AT (1) | ATE319921T1 (de) |
DE (2) | DE10316799A1 (de) |
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FR2744138B1 (fr) | 1996-01-25 | 1998-05-15 | Ecia Equip Composants Ind Auto | Utilisation d'un acier faiblement allie aluminie pour la fabrication d'une piece de la partie avant d'une ligne d'echappement et piece d'echappement obtenue |
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- 2004-04-01 AT AT04007937T patent/ATE319921T1/de active
- 2004-04-01 DE DE502004000334T patent/DE502004000334D1/de not_active Expired - Lifetime
- 2004-04-12 US US10/822,543 patent/US7273592B2/en active Active
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WO2001071169A1 (en) * | 2000-03-21 | 2001-09-27 | Silentor Holding A/S | A silencer containing one or more porous bodies |
WO2002011862A1 (en) * | 2000-08-03 | 2002-02-14 | Starfire Systems, Inc. | Filter, regeneration and soot-removing systems and applications |
EP1225313A2 (de) * | 2001-01-20 | 2002-07-24 | Bayerische Motoren Werke Aktiengesellschaft | Abgasbehandlungseinrichtung |
WO2003018971A1 (fr) * | 2001-08-28 | 2003-03-06 | Crmt | Procede de regeneration d'un dispositif de filtration des gaz d'echappement pour moteur diesel et dispositif de mise en oeuvre |
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
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EP3748141A4 (de) * | 2018-01-29 | 2021-10-06 | Kabushiki Kaisha Toyota Jidoshokki | Abgasreinigungsvorrichtung |
US11267333B2 (en) | 2018-01-29 | 2022-03-08 | Kabushiki Kaisha Toyota Jidoshokki | Exhaust gas purification device |
WO2019166444A1 (de) * | 2018-03-01 | 2019-09-06 | Cpt Group Gmbh | Vorrichtung zur abgasnachbehandlung |
CN111788373A (zh) * | 2018-03-01 | 2020-10-16 | 纬湃技术有限公司 | 用于排气后处理的设备 |
US11174775B2 (en) | 2018-03-01 | 2021-11-16 | Vitesco Technologies GmbH | Exhaust gas aftertreatment device |
CN109707485A (zh) * | 2019-03-20 | 2019-05-03 | 王盈盈 | 一种汽车尾气净化装置 |
FR3106853A1 (fr) | 2020-02-04 | 2021-08-06 | Psa Automobiles Sa | Dispositif d’echappement comprenant des bossages de maintien d’un boitier de depollution |
Also Published As
Publication number | Publication date |
---|---|
DE502004000334D1 (de) | 2006-05-04 |
ATE319921T1 (de) | 2006-03-15 |
DE10316799A1 (de) | 2004-10-28 |
US20040202591A1 (en) | 2004-10-14 |
EP1467070B1 (de) | 2006-03-08 |
US7273592B2 (en) | 2007-09-25 |
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