EP2287452B1 - Exhaust system for an internal combustion engine - Google Patents
Exhaust system for an internal combustion engine Download PDFInfo
- Publication number
- EP2287452B1 EP2287452B1 EP10005111A EP10005111A EP2287452B1 EP 2287452 B1 EP2287452 B1 EP 2287452B1 EP 10005111 A EP10005111 A EP 10005111A EP 10005111 A EP10005111 A EP 10005111A EP 2287452 B1 EP2287452 B1 EP 2287452B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- exhaust
- line
- connecting line
- exhaust gas
- tract
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/04—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 silencers in parallel, e.g. having interconnections for multi-cylinder engines
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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
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/16—Silencing apparatus characterised by method of silencing by using movable parts
- F01N1/166—Silencing apparatus characterised by method of silencing by using movable parts for changing gas flow path through the silencer or for adjusting the dimensions of a chamber or a pipe
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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
- F01N13/02—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 silencers in series
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
- F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
- F02B75/18—Multi-cylinder engines
-
- 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
- F01N2410/00—By-passing, at least partially, exhaust from inlet to outlet of apparatus, to atmosphere or to other device
Definitions
- the invention relates to an exhaust system of an internal combustion engine according to the preamble of claim 1.
- each exhaust systems of an internal combustion engine are known, wherein a first cylinder group of the internal combustion engine is associated with a first exhaust line of the exhaust system and a second cylinder group of the internal combustion engine, a second exhaust line of the exhaust system.
- Each exhaust system of the exhaust system comprises an exhaust gas purification device, namely a catalyst, and two downstream of the exhaust gas purification device muffler, namely one of the respective exhaust gas purification device downstream first muffler and the respective first muffler downstream second muffler.
- the two exhaust gas lines of the exhaust system are connected to each other via a connecting line, which provides a sound transmission device, the connecting line and thus the sound transmission device in the flow direction of the exhaust gas downstream of the exhaust gas purification devices and upstream of the first muffler engages the exhaust strands and the same with each other, depending from the position of one of the connecting line and thus sound transmission associated flap.
- a connecting line which provides a sound transmission device, the connecting line and thus the sound transmission device in the flow direction of the exhaust gas downstream of the exhaust gas purification devices and upstream of the first muffler engages the exhaust strands and the same with each other, depending from the position of one of the connecting line and thus sound transmission associated flap.
- the present invention has the object to provide a novel exhaust system of an internal combustion engine, this task is by an exhaust system of an internal combustion engine according to claim or claim 2, according to the invention branches off from the exhaust lines coupling coupling line from a common bypass line.
- Fig. 1 shows a section of an inventive exhaust system 10 of an internal combustion engine according to a first embodiment of the invention, wherein the exhaust system 10 of the Fig. 1 two exhaust gas lines 11, 12, namely a not shown, a first cylinder group of the internal combustion engine associated first exhaust line 11 and a likewise not shown, second cylinder group of the internal combustion engine associated second exhaust line 12.
- the flow direction of the exhaust gas through the exhaust lines 11 and 12 is visualized by arrows 13 and 14.
- the two exhaust lines 11 and 12 of in Fig. 1 shown exhaust system 10 are coupled via a connecting line 15 with each other.
- the connecting line 15 is coupled via a first connection point 16 to the first exhaust gas line 11 and via a second binding point 17 to the second exhaust line 12.
- Exhaust gas can be transferred between the two exhaust gas lines 11 and 12 via the connecting line 15.
- Exhaust gas, which is diverted starting from the first exhaust line 11 via the connecting line 15 of the same, and exhaust gas, which is branched starting from the second exhaust line 12 via the connecting line 15 from the same, can be removed via the common bypass line 18, wherein the flow through the bypass line 18th is visualized by the exhaust gas by an arrow 19.
- the common bypass line 18 branches off in a connection point 20 from the connecting line 15.
- the connecting line 15 a total of two shut-off devices 21 and 22, namely a first shut-off device 21 between the connection point 16 of the connecting line 15 to the first exhaust line 11 and the connection point 20 of the common bypass line 18 to the connecting line 15, and a second shut-off device 22 between the connection point 17th the connection line 15 to the second exhaust line 12 and the connection point 20 of the common bypass line 18 to the connecting line 15.
- the shut-off devices 21 and 22 can be closed or opened uniformly or non-uniformly.
- shut-off devices 21 and 22 in which case exhaust gas from both exhaust lines 11 and 12 passes via the connecting line 15 into the common bypass line 18.
- Fig. 1 is the connecting line 15 to the first exhaust line 11 and the second exhaust line 12 respectively in the region of an exhaust pipe section of the respective exhaust line 11 and 12 coupled to the same.
- the connection points 16 and 17 of the connecting line 15 to the exhaust gas lines 11 and 12 are therefore in an exhaust pipe section of the same.
- Fig. 1 can be seen that seen in the flow direction of the exhaust both the exhaust line 13 and the exhaust line 14 downstream of the respective connection point 16 and 17 of the connecting line 15 to the respective exhaust line 11 and 12, a module 23 and 24 of the respective exhaust line 11 and May be associated with 12, wherein it may be the assemblies 23 and 24 to exhaust purification devices or catalysts or even silencer.
- Fig. 1 opens the common bypass line 18 seen in the flow direction of the exhaust gas downstream of the connecting line 15 to the outside.
- Fig. 2 shows an embodiment of an exhaust system 25, wherein in contrast to the embodiment of Fig. 1 the common bypass line 18 downstream of the connecting line 15 does not open directly into the open air, but rather into an assembly 25 which is assigned to the common bypass line 18, wherein the assembly 26 may be an exhaust gas purification device or a catalyst or even a silencer ,
- the exhaust system 25 of the Fig. 2 with the exhaust system 10 of the Fig. 1 Therefore, to avoid unnecessary repetition for the same components same reference numerals are used and to the comments on the embodiment of Fig. 1 is referenced.
- Also for the following embodiments of the Fig. 3 to 8 are used to avoid unnecessary repetition for the same components same reference numerals as in the embodiment of Fig. 1 ,
- Fig. 3 shows a further embodiment of an exhaust system 27 according to the invention, in which the common bypass line 18 branches in the flow direction (arrow 19) of the exhaust downstream of the connecting line 15 into two partial bypass lines 28 and 29, wherein the partial bypass line 28 the exhaust line 11 and the partial bypass line 29 the exhaust line 12 can be attributed.
- the subbypass passages 28 and 29 can also be assigned to further subassemblies 31 and 32, wherein the subassemblies 31 and 32 can be exhaust gas purification devices or catalysts or mufflers.
- each partial bypass line 28 and 29 is assigned an individual exhaust-gas cleaning device 31 or 32, so that in the flow direction of the exhaust gas, on the one hand, each partial bypass line 28 and 29 downstream of the branching point 30 of the common bypass line 18 into the partial bypass lines 28, 29 into a separate exhaust gas purification device 31 and 32 and on the other hand, each exhaust line 11 and 12 downstream of the connection points 16 and 17 of the connecting line 15 to the respective exhaust line 11 and 12 opens into a separate exhaust gas purification device 23 and 24 respectively.
- each partial bypass line is associated with an individual silencer 31 or 32, so seen in the flow direction of the exhaust gas, on the one hand, each partial bypass line 28 and 29 downstream of the Branching point 30 of the common bypass line 18 in the partial bypass lines 28 and 29 into a separate muffler 31 and 32 and on the other hand, each exhaust line 11 and 12 downstream of the connection points 16 and 17 of the connecting line 15 to the exhaust gas lines 11 and 12 in a separate muffler 23 and 24 opens ,
- Fig. 4 shows a further embodiment of an exhaust system 33 according to the invention
- the common bypass line 18 in turn branches downstream of the connecting line 15 in two partial bypass lines 28 and 29, wherein, however, in the embodiment of Fig. 4
- each partial bypass line 28 and 29 opens into an exhaust gas purification device 23 and 24, in the flow direction of the exhaust gas seen the exhaust line 11 and 12 downstream of the connection point 16 and 17 of the connecting line 15 opens to the respective exhaust line 11 and 12 respectively.
- each partial bypass line 28 and 29 opens into a silencer 23 and 24, in which the respective exhaust line 11 and 12 downstream of the respective connection point 16 and 17 of the connecting line 15 to the respective exhaust line 11 and 12 opens.
- the embodiments of the Fig. 1 to 4 is common that the connecting line 15 of the exhaust systems to the exhaust lines 11 and 12 is in each case in the region of an exhaust pipe section of the respective exhaust line 11 and 12 coupled to the same.
- FIG. 5 shows Fig. 5 an embodiment of an exhaust system 34, in which the connecting line 15 is coupled to the first exhaust line 11 and the second exhaust line 12 respectively in the region of the exhaust line 11 and 12 associated assembly 35 and 36 to the respective exhaust line 11 and 12, wherein it may be the assemblies 35 and 36 to exhaust gas purification equipment or catalysts or even silencer.
- the connection points 16, 17 are not assigned to an exhaust pipe section of the respective exhaust gas line 11 or 12, but rather to an exhaust gas purification device or a silencer of the respective exhaust gas line 11 or 12.
- the exemplary embodiment of FIG Fig. 5 with the embodiment of Fig. 1 match.
- the coupling of the connecting line 15 with the exhaust gas lines 11 and 12 in the region of an exhaust gas purification device or a silencer can also in the embodiments of the Fig. 2 to 4 be used.
- Fig. 6 shows a further embodiment of an exhaust system 37 according to the invention, wherein the exhaust system 37 of the Fig. 6 essentially the exhaust system 33 of the Fig. 4 equivalent.
- the exhaust system 37 of Fig. 6 differs from the exhaust system 33 of the Fig. 3 in that in the exhaust system 37 of the Fig. 6 the connection line 15 are not assigned two shut-off, but in the embodiment of the Fig. 6 the connecting line 15 exclusively associated with a shut-off device 22.
- the common bypass line 18 is assigned a shut-off device 38.
- the common bypass line 18 associated shut-off device 38 can be closed, so that when the connecting line 15 associated shut-off device 22 is opened, exhaust gas is exchanged exclusively between the exhaust lines 11 and 12, but without exhaust gas through the common bypass line 18 and thus the partial bypass lines 28 and 29 flows.
- the connecting line 15 associated shut-off device 22 between the connection point the common bypass line 18 connected to the connecting line 15 and the connection point 17 of the connecting line 15 to the second exhaust line 12.
- shut-off devices 22 and 38 in the connecting line 15 and in the common bypass line 18 can also in the embodiments of the Fig. 1 to 5 as well as 6 and 7 are used.
- Fig. 7 shows a further embodiment of an exhaust system 39 according to the invention, wherein in the embodiment of the Fig. 7 the features of the embodiments of Fig. 4 and 5 combined with each other.
- the connection points 16 and 17 of the connecting line 15 to the exhaust gas lines 11 and 12 again not exhaust pipe sections, but an exhaust gas purification device or a silencer 35 or 36 assigned.
- the common bypass line 18 is branched into partial bypass lines 28 and 29 which are in the same Exhaust gas purification device or the same silencer 23 and 24 open, as the exhaust gas lines 11, 12 downstream of the connection points 16, 17th
- FIG Fig. 8 A further exemplary embodiment of an exhaust system 40 according to the invention is shown in FIG Fig. 8 shown, wherein the embodiment of the Fig. 8 from the embodiment of Fig. 7 differs in that the partial bypass lines 28 and 29 open into the same assembly 23 and 24 and are passed through the same assemblies 23 and 24, from which the connecting line 15 branches off.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Gas After Treatment (AREA)
- Exhaust Silencers (AREA)
Description
Die Erfindung betrifft eine Abgasanlage einer Brennkraftmaschine nach dem Oberbegriff des Anspruchs 1.The invention relates to an exhaust system of an internal combustion engine according to the preamble of claim 1.
Aus der
Aus der
Hiervon ausgehend liegt der hier vorliegenden Erfindung die Aufgabe zugrunde, eine neuartige Abgasanlage einer Brennkraftmaschine zu schaffen, Diese Aufgabe wird durch eine Abgasanlage einer Brennkraftmaschine gemäß Anspruch oder Anspruch 2 gelöst, Erfindungsgemäß zweigt von der die Abgasstränge koppelnden Verbindungsleitung eine gemeinsame Bypassleitung ab.On this basis, the present invention has the object to provide a novel exhaust system of an internal combustion engine, this task is by an exhaust system of an internal combustion engine according to claim or claim 2, according to the invention branches off from the exhaust lines coupling coupling line from a common bypass line.
Bevorzugte Weiterbildungen der Erfindung ergeben sich aus den Unteransprüchen und der nachfolgenden Beschreibung. Ausführungsbeispiele der Erfindung werden, ohne hierauf beschränkt zu sein, an Hand der Zeichnung näher erläutert. Dabei zeigt:
- Fig. 1:
- eine schematisierte Darstellung eines ersten Ausführungsbeispiels einer erfindungsgemäßen Abgasanlage;
- Fig. 2:
- eine schematisierte Darstellung eines zweiten Ausführungsbeispiels einer erfindungsgemäßen Abgasanlage;
- Fig. 3:
- eine schematisierte Darstellung eines dritten Ausführungsbeispiels einer erfindungsgemäßen Abgasanlage;
- Fig. 4:
- eine schematisierte Darstellung eines vierten Ausführungsbeispiels einer erfindungsgemäßen Abgasanlage;
- Fig. 5:
- eine schematisierte Darstellung eines fünften Ausführungsbeispiels einer erfindungsgemäßen Abgasanlage;
- Fig. 6:
- eine schematisierte Darstellung eines sechsten Ausführungsbeispiels einer erfindungsgemäßen Abgasanlage;
- Fig. 7:
- eine schematisierte Darstellung eines siebten Ausführungsbeispiels einer erfindungsgemäßen Abgasanlage; und
- Fig. 8:
- eine schematisierte Darstellung eines achten Ausführungsbeispiels einer erfindungsgemäßen Abgasanlage.
- Fig. 1:
- a schematic representation of a first embodiment of an exhaust system according to the invention;
- Fig. 2:
- a schematic representation of a second embodiment of an exhaust system according to the invention;
- 3:
- a schematic representation of a third embodiment of an exhaust system according to the invention;
- 4:
- a schematic representation of a fourth embodiment of an exhaust system according to the invention;
- Fig. 5:
- a schematic representation of a fifth embodiment of an exhaust system according to the invention;
- Fig. 6:
- a schematic representation of a sixth embodiment of an exhaust system according to the invention;
- Fig. 7:
- a schematic representation of a seventh embodiment of an exhaust system according to the invention; and
- Fig. 8:
- a schematic representation of an eighth embodiment of an exhaust system according to the invention.
Die beiden Abgasstränge 11 und 12 der in
Erfindungsgemäß zweigt von der die Abgasstränge 11 und 12 koppelnden Verbindungsleitung 15 eine gemeinsame Bypassleitung 18 ab. Abgas, welches ausgehend vom ersten Abgasstrang 11 über die Verbindungsleitung 15 von demselben abgezweigt wird, sowie Abgas, welches ausgehend vom zweiten Abgasstrang 12 über die Verbindungsleitung 15 von demselben abgezweigt wird, kann über die gemeinsame Bypassleitung 18 abgeführt werden, wobei die Durchströmung der Bypassleitung 18 vom Abgas durch einen Pfeil 19 visualisiert ist.According to the invention, the connecting
Gemäß
Im Ausführungsbeispiel der
Im Ausführungsbeispiel der
Stromabwärts einer Verzweigungsstelle 30 der gemeinsamen Bypassleitung 18 in die Teilbypassleitungen 28 und 29 können die Teilbypassleitungen unmittelbar ins Freie münden. Wie
So ist es im Ausführungsbeispiel der
Ebenso ist es im Ausführungsbeispiel der
So ist es im Ausführungsbeispiel der
Ebenso ist es im Ausführungsbeispiel der
Den Ausführungsbeispielen der
Demgegenüber zeigt
Die Anordnung der Absperreinrichtungen 22 und 38 in der Verbindungsleitung 15 sowie in der gemeinsamen Bypassleitung 18 kann auch bei den Ausführungsbeispielen der
Abgasreinigungseinrichtung bzw. denselben Schalldämpfer 23 bzw. 24 münden, wie die Abgasstränge 11, 12 stromabwärts der Anbindungsstellen 16, 17.
Exhaust gas purification device or the
Ein weiteres Ausführungsbeispiel einer erfindungsgemäßen Abgasanlage 40 ist in
- 1010
- Abgasanlageexhaust system
- 1111
- Abgasstrangexhaust gas line
- 1212
- Abgasstrangexhaust gas line
- 1313
- Strömungsrichtung AbgasFlow direction exhaust gas
- 1414
- Strömungsrichtung AbgasFlow direction exhaust gas
- 1515
- Verbindungsleitungconnecting line
- 1616
- Anbindungsstelleconnecting point
- 1717
- Anbindungsstelleconnecting point
- 1818
- gemeinsame Bypassleitungcommon bypass line
- 1919
- Strömungsrichtung AbgasFlow direction exhaust gas
- 2020
- Anbindungsstelleconnecting point
- 2121
- Absperreinrichtungshut-off
- 2222
- Absperreinrichtungshut-off
- 2323
- Abgasreinigungseinrichtung/SchalldämpferExhaust purification apparatus / silencer
- 2424
- Abgasreinigungseinrichtung/SchalldämpferExhaust purification apparatus / silencer
- 2525
- Abgasanlageexhaust system
- 2626
- Abgasreinigungseinrichtung/SchalldämpferExhaust purification apparatus / silencer
- 2727
- Abgasanlageexhaust system
- 2828
- TeilbypassleitungPart bypass line
- 2929
- TeilbypassleitungPart bypass line
- 3030
- Verzweigungsstellebranching point
- 3131
- Abgasreinigungseinrichtung/SchalldämpferExhaust purification apparatus / silencer
- 3232
- Abgasreinigungseinrichtung/SchalldämpferExhaust purification apparatus / silencer
- 3333
- Abgasanlageexhaust system
- 3434
- Abgasanlageexhaust system
- 3535
- Abgasreinigungseinrichtung/SchalldämpferExhaust purification apparatus / silencer
- 3636
- Abgasreinigungseinrichtung/SchalldämpferExhaust purification apparatus / silencer
- 3737
- Abgasanlageexhaust system
- 3838
- Absperreinrichtungshut-off
- 3939
- Abgasanlageexhaust system
- 4040
- Abgasanlageexhaust system
Claims (14)
- Exhaust system fcr an internal combustion engine, having a first exhaust tract assigned to a first group of cylinders of the internal combustion engine, and a second exhaust tract assigned to a second group of cylinders of the internal combustion engine, the first exhaust tract and the second exhaust tract being coupled to one another by a connecting line, characterized in that a common bypass line (18) branches off from the connecting line (15) coupling the exhaust tracts (11, 12) with the result that exhaust gas which, emanating from the first exhaust tract (11), is branched off from the latter via the connecting line (15) and exhaust gas which, emanating from the second exhaust tract (12), is branched off from the Latter via the connecting line (15) are discharged via the common bypass line 18, and the common bypass line (18) opens, downstream of the connecting line (15) as viewed in the flow direction of the exhaust gas, to atmosphere, into an exhaust gas purification device (26) or into a silencer (26) .
- Exhaust system for an internal combustion engine, having a first exhaust tract assigned to a first group of cylinders of the internal combustion engine, and a second exhaust tract assigned to a second group of cylinders of the internal combustion engine, the first exhaust tract and the second exhaust tract being coupled to one another by a connecting line, characterized in that a common bypass line (18) branches off from the connecting line (15) coupling the exhaust tracts (11, 12) with the result that exhaust gas which, emanating from the first exhaust tract (11), is branched off from the latter via the connecting line (15) and exhaust gas which, emanating from the second exhaust tract (12), is branched off from the latter via the connecting line (15) are discharged via the common bypass line 18, and the common bypass line (18) branching into at least two bypass branch lines (28, 29) downstream of the connecting line (15), as seen in the direction of flow of the exhaust gas.
- Exhaust system according to Claim 2, characterized in that each bypass branch line (28, 29) opens to atmosphere downstream of a branch point (30) in the common bypass line (18), as seen in the direction of flow of the exhaust gas.
- Exhaust system according to Claim 2, characterized in that each bypass branch line (28, 29) opens into an exhaust gas purification device downstream of a branch point (30) in the common bypass line (18), as seen in the direction of flow of the exhaust gas.
- Exhaust system according to Claim 4, characterized in that each bypass branch line (28, 29) is assigned a dedicated exhaust gas purification device (31, 32), with the result that, on the one hand, each bypass branch line (28, 29) opens into a separate exhaust gas purification device (31, 32) downstream of the point (30) where the common bypass line (18) branches into the bypass branch lines (28, 29) and, on the other hand, each exhaust tract (11, 12) opens into a separate exhaust gas purification device (23, 24) downstream of a point of connection (16, 17) of the connecting line (15) to the respective exhaust tract (11, 12), as seen in the direction of flow of the exhaust gas.
- Exhaust system according to Claim 4, characterized in that each bypass branch line (28, 29) opens into an exhaust gas purification device (23, 24) into which an Exhaust tract (11, 12) opens downstream of a point of connection (16, 17) of the connecting line (15) to the respective exhaust tract (11, 12), as seen in the direction of flow of the exhaust gas.
- Exhaust system according to Claim 2, characterized in that each bypass branch line (28, 29) opens into a silencer downstream of a branch point (30) in the common bypass line (18), as seen in the direction of flow of the exhaust gas.
- Exhaust system according to Claim 7, characterized in that each bypass branch line (28, 29) is assigned a dedicated silencer (31, 32), with the result that, on the one hand, each bypass branch line opens into a separate silencer (31, 32) downstream of the point (30) where the common bypass line (18) branches into the bypass branch lines (28, 29) and, on the other hand, each exhaust tract (11, 12) opens into a separate silencer (23, 24) downstream of a point of connection (16, 17) of the connecting line (15) to the respective exhaust tract (11, 12), as seen in the direction of flow of the exhaust gas.
- Exhaust system according to Claim 7, characterized in that each bypass branch line (28, 29) opens into a silencer (23, 24) into which an exhaust tract (11, 12) opens downstream of a point of connection (16, 17) of the connecting line (15) to the respective exhaust tract (11, 12), as seen in the direction of flow of the exhaust gas.
- Exhaust system according to one of Claims 1 to 9, characterized in that the connecting line (15) to the first exhaust tract (11) and to the second exhaust tract (12) is in each case coupled to the said exhaust tracts in the region of an exhaust pipe section of the respective exhaust tract (11, 12).
- Exhaust system according to one of Claims 1 to 9, characterized in that the connecting line (15) to the first exhaust tract (11) and to the second exhaust tract (12) is in each case coupled to the said exhaust tracts in the region of an exhaust gas purification device (35, 36) of the respective exhaust tract (11, 12).
- Exhaust system according to one of Claims 1 to 9, characterized in that the connecting line (15) to the first exhaust tract (11) and to the second exhaust tract (12) is in each case coupled tc the said exhaust tracts in the region of a silencer (35, 36) of the respective exhaust tract (11, 12).
- Exhaust system according to one of Claims 1 to 12, characterized in that the connecting line (15) is assigned at least two shut-off devices, namely a first shut-off device (21) between a point of connection (16) of the connecting line to the first exhaust tract and a point of connection (20) of the common bypass line to the connecting line, and a second shut-off device (22) between a point of connection (17) of the connecting line to the second exhaust tract and the point of connection (20) of the common bypass line to the connecting line.
- Exhaust system according to one of Claims 1 to 12, characterized in that the connecting line (15) is assigned one shut-off device (22), namely between a point of connection of the connecting line to the first exhaust tract and a point of connection of the common bypass line to the connecting line, or between a point of connection (17) of the connecting line to the second exhaust tract and the point of connection (20) of the common bypass line to the connecting line, and in that the common bypass line (18) is assigned an additional shut-off device (28).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009032215A DE102009032215A1 (en) | 2009-07-06 | 2009-07-06 | Exhaust system of an internal combustion engine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2287452A1 EP2287452A1 (en) | 2011-02-23 |
EP2287452B1 true EP2287452B1 (en) | 2012-09-19 |
Family
ID=42768025
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10005111A Active EP2287452B1 (en) | 2009-07-06 | 2010-05-15 | Exhaust system for an internal combustion engine |
Country Status (5)
Country | Link |
---|---|
US (1) | US8826651B2 (en) |
EP (1) | EP2287452B1 (en) |
CN (1) | CN101943046B (en) |
DE (1) | DE102009032215A1 (en) |
RU (1) | RU102229U1 (en) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010003301B4 (en) * | 2009-10-22 | 2014-12-04 | Faurecia Abgastechnik Gmbh | silencer |
DE102010008277B4 (en) | 2010-02-17 | 2023-10-12 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Exhaust system of an internal combustion engine |
DE102010064088A1 (en) * | 2010-12-02 | 2012-06-06 | Kess-Tech Gmbh | Muffler for exhaust systems |
DE102011088150A1 (en) * | 2011-12-09 | 2013-06-13 | Kess-Tech Gmbh | Silencer arrangement |
DE102013208946A1 (en) * | 2013-05-15 | 2014-11-20 | Bayerische Motoren Werke Aktiengesellschaft | Exhaust system for an internal combustion engine and method for operating the exhaust system |
DE102013210464A1 (en) * | 2013-06-05 | 2014-12-11 | Bayerische Motoren Werke Aktiengesellschaft | Exhaust system for an internal combustion engine and method for operating the exhaust system |
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-
2009
- 2009-07-06 DE DE102009032215A patent/DE102009032215A1/en not_active Withdrawn
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2010
- 2010-05-15 EP EP10005111A patent/EP2287452B1/en active Active
- 2010-07-02 US US12/829,489 patent/US8826651B2/en active Active
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- 2010-07-06 CN CN201010225083.6A patent/CN101943046B/en not_active Expired - Fee Related
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CN101943046B (en) | 2015-04-29 |
RU102229U1 (en) | 2011-02-20 |
DE102009032215A1 (en) | 2011-01-27 |
CN101943046A (en) | 2011-01-12 |
US20110000201A1 (en) | 2011-01-06 |
US8826651B2 (en) | 2014-09-09 |
EP2287452A1 (en) | 2011-02-23 |
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