DE102005043060A1 - Turbocharger device for internal combustion engine, has controllable bypass line diverting upstream before one of turbines of one of exhaust gas turbochargers and again discharging in intersection downstream of turbine in exhaust gas line - Google Patents
Turbocharger device for internal combustion engine, has controllable bypass line diverting upstream before one of turbines of one of exhaust gas turbochargers and again discharging in intersection downstream of turbine in exhaust gas line Download PDFInfo
- Publication number
- DE102005043060A1 DE102005043060A1 DE102005043060A DE102005043060A DE102005043060A1 DE 102005043060 A1 DE102005043060 A1 DE 102005043060A1 DE 102005043060 A DE102005043060 A DE 102005043060A DE 102005043060 A DE102005043060 A DE 102005043060A DE 102005043060 A1 DE102005043060 A1 DE 102005043060A1
- Authority
- DE
- Germany
- Prior art keywords
- exhaust gas
- turbine
- turbocharger
- exhaust
- internal combustion
- 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
Classifications
-
- 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
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/013—Engines characterised by provision of pumps driven at least for part of the time by exhaust with exhaust-driven pumps arranged in series
-
- 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
- F01N3/18—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 methods of operation; Control
- F01N3/20—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 methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2006—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating
-
- 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
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/004—Engines characterised by provision of pumps driven at least for part of the time by exhaust with exhaust drives arranged in series
-
- 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
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/12—Control of the pumps
- F02B37/18—Control of the pumps by bypassing exhaust from the inlet to the outlet of turbine or to the atmosphere
-
- 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
- F01N2390/00—Arrangements for controlling or regulating exhaust apparatus
- F01N2390/02—Arrangements for controlling or regulating exhaust apparatus using electric components only
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- 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 Gas After Treatment (AREA)
- Processes For Solid Components From Exhaust (AREA)
- Supercharger (AREA)
Abstract
Description
Technisches Gebiettechnical area
Die Erfindung betrifft eine Turboladereinrichtung für eine Brennkraftmaschine gemäß dem Oberbegriff des Anspruchs 1.The The invention relates to a turbocharger device for an internal combustion engine according to the preamble of claim 1.
Aus
der
Bei
der aus der
Aufgabe der ErfindungTask of invention
Der Erfindung liegt die Aufgabe zugrunde, eine Turboladereinrichtung für eine Brennkraftmaschine derart auszubilden, so dass beim Kaltstart der Brennkraftmaschine eine Verzögerung des Wirksamwerdens der nach den Turbinen der Abgasturbolader angeordneten Abgaskatalysatoren oder Abgasreinigungsvorrichtungen vermeidbar ist.Of the Invention is based on the object, a turbocharger device for one Engine so form, so that when cold starting the engine a delay the effectiveness of the arranged after the turbines of the turbocharger Catalytic converters or emission control devices avoidable is.
Lösung der AufgabeSolution of task
Die Aufgabe wird durch den kennzeichnenden Teil des Anspruchs 1 gelöst.The The object is solved by the characterizing part of claim 1.
Vorteile der ErfindungAdvantages of invention
Ein Vorteil der Erfindung ist es, dass durch die wahlweise regelbare Bypassleitung die Turbine des ersten Abgasturboladers vollständig oder teilweise umgehbar ist, so dass das Abgas direkt zu der ersten Abgasnachbehandlungseinrichtung strömen kann. Somit treten während der Kaltstartphase der Brennkraftmaschine keine Verzögerungen beim Wirksamwerden der Abgasnachbehandlungseinrichtungen auf. Ferner wirkt sich die motornahe Anordnung der ersten Abgasnachbehandlungseinrichtung vorteilhaft auf deren Wirkweise aus.One Advantage of the invention is that through the optionally controllable Bypass line the turbine of the first exhaust gas turbocharger completely or is partially bypassed, so that the exhaust gas directly to the first exhaust aftertreatment device can flow. Thus occur during the cold start phase of the internal combustion engine no delays when the exhaust aftertreatment devices take effect. Further the close-coupled arrangement of the first exhaust aftertreatment device has an advantageous effect on their mode of action.
In einer vorteilhaften Ausführungsform der Erfindung ist die erste Abgasnachbehandlungseinrichtung ein Vorkatalysator. Dies bietet den Vorteil, dass durch die schaltbare Bypassleitung bei einem Kaltstart das Abgas direkt zu dem Vorkatalysator strömen kann und dieser ohne Verzögerung seine Betriebstemperatur erreicht.In an advantageous embodiment the invention is the first exhaust aftertreatment device Pre-catalyst. This offers the advantage that through the switchable Bypass line at a cold start the exhaust gas can flow directly to the pre-catalyst and this without delay reaches its operating temperature.
In einer weiteren vorteilhaften Ausführungsform der Erfindung ist die erste Abgasnachbehandlungseinrichtung ein Dieselpartikelfilter. Dies bietet den Vorteil, dass durch die schaltbare Bypassleitung das Abgas direkt zu dem Dieselpartikelfilter strömen kann, so dass eine ausreichend hohe Temperatur für eine vollständige und saubere Regeneration des Dieselpartikelfilters erzielbar ist. Ferner ist eine Regenera tion des Dieselpartikelfilters unabhängig von der Öffnung der Bypassleitung möglich, da die Bypassleitung stromaufwärts vor dem Dieselpartikelfilter einmündet, so dass kein weiterer Dieselpartikelfilter stromabwärts der Einmündung erforderlich ist.In a further advantageous embodiment of the invention the first exhaust aftertreatment device a diesel particulate filter. This offers the advantage that the switchable bypass line the Exhaust gas can flow directly to the diesel particulate filter, so that sufficient high temperature for one full and clean regeneration of the diesel particulate filter is achievable. Furthermore, a Regenera tion of the diesel particulate filter is independent of the opening the bypass line possible, because the bypass line upstream before the diesel particulate filter opens, so that no further Diesel particulate filter downstream the confluence is required.
In einer anderen vorteilhaften Ausführungsform der Erfindung ist stromabwärts der Serienschaltung eine weitere Abgasnachbehandlungseinrichtung in Serie geschaltet. Beispielsweise kann die weitere Abgasnachbehandlungseinrichtung ein Hauptkatalysator sein. Dies bietet den Vorteil, dass bei großvolumigen Motoren die Abgasreinigung neben der ersten Abgasnachbehandlungseinrichtung vorwiegend durch die weitere Abgasnachbehandlungseinrichtung erfolgt.In another advantageous embodiment The invention is downstream the series circuit another exhaust aftertreatment device connected in series. For example, the further exhaust aftertreatment device to be a main catalyst. This offers the advantage of being large-volume Engines exhaust purification in addition to the first exhaust aftertreatment device mainly by the further exhaust aftertreatment device.
In einer weiteren vorteilhaften Ausführungsform der Erfindung ist die Abgasnachbehandlungseinrichtung als Vorkatalysator mit einer niedrigen Zelldichte (Zellen pro Quadratzoll, cpsi) bzw. als Dieselpartikelfilter mit einer niedrigen Drosselwirkung sowie einer absoluten Wärmekapazität ausgebildet. Dies bietet den Vorteil, dass hierdurch geringe Strömungsverluste auftreten, so dass bei hoher Last und hoher Drehzahl nur ein geringer Strömungswiderstand besteht. Zudem ergibt sich aufgrund der niedrigen Zelldichte bzw. Wärmekapazität eine geringere Wärmesenke gegenüber einer höheren Zelldichte bzw. Wärmekapazität.In a further advantageous embodiment of the invention, the exhaust aftertreatment device is designed as a precatalyst with a low cell density (cells per square inch, cpsi) or as a diesel particulate filter with a low throttle effect and an absolute heat capacity. This offers the advantage that this results in low flow losses, so that at high load and high speed only a small flow resistance exists. In addition, due to the low cell density or heat capacity results in a lower heat sink compared to a higher cell density or heat capacity.
Weitere Vorteile der Erfindung folgen aus der nachfolgenden Beschreibung sowie aus den Ansprüchen.Further Advantages of the invention will be apparent from the following description as well as from the claims.
Zeichnungdrawing
Es zeigt:It shows:
In
Über die
Abgasleitung
Die
Turbine
In
der Kaltstartphase der Brennkraftmaschine
Unabhängig von
der Schaltung des Bypassventils
Je
nach Betriebspunkt und -zustand der Brennkraftmaschine
- – Beim Leerlauf
strömt
der Abgasmassenstrom vollständig über die
Bypassleitung
8 , so dass die Turbine2 des ersten Abgasturboladers nicht durchströmt wird. Im Kaltlauf bleibt die Bypassleitung8 gleichermaßen geöffnet, um ein schnelles Erreichen der Betriebstemperatur der Abgasnachbehandlungseinrichtung6 zu ermöglichen. - – Im
niedrigen Drehzahlbereich ist die Bypassleitung
8 über das Bypassventil10 geschlossen, so dass der Abgasmassenstrom vollständig über die Abgasleitung4 durch die Turbine2 des ersten Abgasturboladers strömt. Insbesondere wenn die erste Abgasnachbehandlungseinrichtung ein Dieselpartikelfilter ist, ist das Bypassventil10 bei Volllast und bei Teillast im niedrigen Drehzahlbereich geschlossen. Im Kaltlauf kann das Bypassventil10 auch teilweise geöffnet sein, um ein schnelles Erreichen bzw. Halten der Betriebstemperatur der Abgasnachbehandlungseinrichtung6 zu ermöglichen. - – Das
Bypassventil
10 ist im hohen Drehzahlbereich, sowohl bei Teil- als auch bei Volllast, vollständig geöffnet, so dass der Abgasmassenstrom über die Bypassleitung8 strömt und die Turbine2 des ersten Abgasturboladers nicht durchströmt wird.
- - At idling the exhaust gas mass flow flows completely through the bypass line
8th so the turbine2 the first exhaust gas turbocharger is not flowed through. During cold running, the bypass line remains8th equally open to quickly reach the operating temperature of the exhaust aftertreatment device6 to enable. - - In the low speed range is the bypass line
8th via the bypass valve10 closed, so that the exhaust gas mass flow completely over the exhaust pipe4 through the turbine2 of the first exhaust gas turbocharger flows. In particular, when the first exhaust aftertreatment device is a diesel particulate filter, the bypass valve is10 closed at full load and at partial load in the low speed range. During cold running, the bypass valve10 also be partially open to quickly reach or maintain the operating temperature of the exhaust aftertreatment device6 to enable. - - The bypass valve
10 is fully open in the high speed range, both partial and full load, so that the exhaust gas mass flow through the bypass line8th flows and the turbine2 the first exhaust gas turbocharger is not flowed through.
- 11
- BrennkraftmaschineInternal combustion engine
- 22
- Turbine des ersten Abgasturboladersturbine of the first exhaust gas turbocharger
- 33
- Turbine des weiteren Abgasturboladersturbine the further exhaust gas turbocharger
- 44
- Abgasleitungexhaust pipe
- 55
- Krümmerelbow
- 66
- erste Abgasnachbehandlungseinrichtungfirst exhaust treatment device
- 77
- weitere AbgasnachbehandlungseinrichtungFurther exhaust treatment device
- 88th
- Bypassleitungbypass line
- 99
- Einmündungjunction
- 1010
- Bypassventilbypass valve
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005043060A DE102005043060B4 (en) | 2005-09-07 | 2005-09-07 | Turbocharger device for an internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005043060A DE102005043060B4 (en) | 2005-09-07 | 2005-09-07 | Turbocharger device for an internal combustion engine |
Publications (2)
Publication Number | Publication Date |
---|---|
DE102005043060A1 true DE102005043060A1 (en) | 2007-03-15 |
DE102005043060B4 DE102005043060B4 (en) | 2012-10-04 |
Family
ID=37763012
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102005043060A Expired - Fee Related DE102005043060B4 (en) | 2005-09-07 | 2005-09-07 | Turbocharger device for an internal combustion engine |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102005043060B4 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2934012A3 (en) * | 2008-07-15 | 2010-01-22 | Renault Sas | Exhaust gas enthalpy enhancing arrangement for e.g. diesel engine, of motor vehicle, has reducing agent injecting unit fixed in exhaust duct downstream of engine and upstream of depollution device to oxidize reducing agent |
WO2013010924A1 (en) * | 2011-07-19 | 2013-01-24 | Jaguar Cars Limited | Improvements in controlling i.c. engine emissions |
DE102011108916A1 (en) * | 2011-07-28 | 2013-01-31 | Volkswagen Aktiengesellschaft | Internal combustion engine for motor vehicle, has compressor whose output side is connected with input side of turbine for pressurizing compressed gas around turbine |
EP2687696A1 (en) * | 2012-07-18 | 2014-01-22 | Caterpillar Motoren GmbH & Co. KG | Compact exhaust gas treatment system and method of operating the same |
DE102013004649A1 (en) * | 2013-03-16 | 2014-09-18 | Volkswagen Aktiengesellschaft | Charged internal combustion engine and method for operating a supercharged internal combustion engine |
DE102008017280B4 (en) * | 2008-04-04 | 2017-01-26 | Man Truck & Bus Ag | Arrangement for influencing the conversion behavior of catalytic converters |
US10815873B2 (en) | 2016-07-05 | 2020-10-27 | Ford Global Technologies, Llc | Methods and systems for a two-stage turbocharger |
DE102010032076B4 (en) | 2009-07-29 | 2024-06-13 | Ford Global Technologies, Llc | Twin turbo diesel aftertreatment system |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19849495C2 (en) * | 1998-10-27 | 2001-01-25 | Daimler Chrysler Ag | Supercharged internal combustion engine with a bypass line bridging the exhaust gas turbine |
DE10112521A1 (en) * | 2000-03-16 | 2001-12-06 | Ford Global Tech Inc | Automobile engine with regulated exhaust gas temperature and oxygen concentration |
DE10233495A1 (en) * | 2002-07-24 | 2004-01-29 | Bayerische Motoren Werke Ag | Internal combustion engine comprises a bypass pipe opening into an exhaust pipe downstream of a catalyst |
EP1396619A1 (en) * | 2002-09-05 | 2004-03-10 | BorgWarner Inc. | Supercharging system for an internal combustion engine |
DE10319594A1 (en) * | 2003-05-02 | 2004-11-18 | Daimlerchrysler Ag | Turbocharger device and a method for operating a turbocharger device |
-
2005
- 2005-09-07 DE DE102005043060A patent/DE102005043060B4/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19849495C2 (en) * | 1998-10-27 | 2001-01-25 | Daimler Chrysler Ag | Supercharged internal combustion engine with a bypass line bridging the exhaust gas turbine |
DE10112521A1 (en) * | 2000-03-16 | 2001-12-06 | Ford Global Tech Inc | Automobile engine with regulated exhaust gas temperature and oxygen concentration |
DE10233495A1 (en) * | 2002-07-24 | 2004-01-29 | Bayerische Motoren Werke Ag | Internal combustion engine comprises a bypass pipe opening into an exhaust pipe downstream of a catalyst |
EP1396619A1 (en) * | 2002-09-05 | 2004-03-10 | BorgWarner Inc. | Supercharging system for an internal combustion engine |
DE10319594A1 (en) * | 2003-05-02 | 2004-11-18 | Daimlerchrysler Ag | Turbocharger device and a method for operating a turbocharger device |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008017280B4 (en) * | 2008-04-04 | 2017-01-26 | Man Truck & Bus Ag | Arrangement for influencing the conversion behavior of catalytic converters |
FR2934012A3 (en) * | 2008-07-15 | 2010-01-22 | Renault Sas | Exhaust gas enthalpy enhancing arrangement for e.g. diesel engine, of motor vehicle, has reducing agent injecting unit fixed in exhaust duct downstream of engine and upstream of depollution device to oxidize reducing agent |
DE102010032076B4 (en) | 2009-07-29 | 2024-06-13 | Ford Global Technologies, Llc | Twin turbo diesel aftertreatment system |
WO2013010924A1 (en) * | 2011-07-19 | 2013-01-24 | Jaguar Cars Limited | Improvements in controlling i.c. engine emissions |
DE102011108916A1 (en) * | 2011-07-28 | 2013-01-31 | Volkswagen Aktiengesellschaft | Internal combustion engine for motor vehicle, has compressor whose output side is connected with input side of turbine for pressurizing compressed gas around turbine |
EP2687696A1 (en) * | 2012-07-18 | 2014-01-22 | Caterpillar Motoren GmbH & Co. KG | Compact exhaust gas treatment system and method of operating the same |
CN104487668A (en) * | 2012-07-18 | 2015-04-01 | 卡特彼勒发动机有限及两合公司 | Compact exhaust gas treatment system and method of operating the same |
US9903244B2 (en) | 2012-07-18 | 2018-02-27 | Caterpillar Motoren Gmbh & Co. Kg | Compact exhaust gas treatment system and method of operating the same |
DE102013004649A1 (en) * | 2013-03-16 | 2014-09-18 | Volkswagen Aktiengesellschaft | Charged internal combustion engine and method for operating a supercharged internal combustion engine |
US10815873B2 (en) | 2016-07-05 | 2020-10-27 | Ford Global Technologies, Llc | Methods and systems for a two-stage turbocharger |
Also Published As
Publication number | Publication date |
---|---|
DE102005043060B4 (en) | 2012-10-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE102013212801B4 (en) | Arrangement for exhaust aftertreatment for an internal combustion engine and method for operating an internal combustion engine | |
DE102005043060A1 (en) | Turbocharger device for internal combustion engine, has controllable bypass line diverting upstream before one of turbines of one of exhaust gas turbochargers and again discharging in intersection downstream of turbine in exhaust gas line | |
EP2206898B1 (en) | Method for treating an exhaust gas flow of a multi-cylinder combustion engine of a vehicle and exhaust gas treatment device | |
EP1396619A1 (en) | Supercharging system for an internal combustion engine | |
DE10319594A1 (en) | Turbocharger device and a method for operating a turbocharger device | |
DE102016212249B4 (en) | Two-stage turbocharged direct-injection internal combustion engine with exhaust aftertreatment and method for operating such an internal combustion engine | |
DE102018104605B4 (en) | Low pressure EGR system with turbo bypass | |
DE102006031702A1 (en) | Multiple-flow turbocharger, for a motor with a number of cylinders, has a valve for selection of a number of exhaust gas modes | |
DE102018104599B4 (en) | Low pressure EGR system with turbo bypass | |
DE102009043087A1 (en) | Internal-combustion engine i.e. diesel engine, of motor vehicle, has secondary air lines for supplying secondary air into exhaust system and arranged such that secondary air lines divert from combustion air system | |
DE102013212802A1 (en) | Arrangement for exhaust aftertreatment for an internal combustion engine and method for operating an internal combustion engine | |
DE102005055240A1 (en) | Exhaust gas after-treatment device for e.g. diesel engine, has after-treatment unit to retain and oxidize sooty particles from gas stream, and throttle valve arranged in auxiliary exhaust gas system for regulating proportion of stream | |
EP1957767B1 (en) | Method for exhaust-gas aftertreatment in internal combustion engines, and apparatus for carrying out this method | |
DE102009020625A1 (en) | Internal combustion engine i.e. diesel engine, for motor vehicle, has oxidation catalyzer arranged upstream to turbine of turbocharger in surges provided for recycling exhaust gas, and switching device provided upstream to catalyzer | |
DE102009032213A1 (en) | Exhaust system for internal-combustion engine, has exhaust strands provided with bypass lines and tailpipes, where exhaust gas is supplied through respective bypass lines to tailpipes of strands based on respective emission control devices | |
DE102014201077A1 (en) | Selective catalytic reduction system | |
EP2262985B1 (en) | Exhaust gas device of an internal combustion engine | |
DE102010025699A1 (en) | Internal combustion engine i.e. diesel engine, operating method, involves arranging branches for separating partial exhaust gas flow to exhaust gas recirculation in housing of nitrogen oxide-storage catalyst | |
DE102009037285A1 (en) | Exhaust system for internal combustion engine, has exhaust pipe, exhaust gas purification unit, another exhaust gas purification unit, bypass line for turning latter exhaust gas purification unit and exhaust gas return line | |
DE102009029259B4 (en) | Filter arrangement of an exhaust aftertreatment device | |
DE102008059657A1 (en) | Double-flow exhaust gas recirculation valve device for exhaust gas system of direct injecting engine of motor vehicle, has valves separately regulatable from each other to open and/or close openings, such that exhaust gas amount is adjusted | |
DE102018120179B4 (en) | Exhaust tract for an internal combustion engine and internal combustion engine | |
DE202013101028U1 (en) | Selective catalytic reduction system | |
DE102020117728B4 (en) | Exhaust aftertreatment system and method for exhaust aftertreatment of an internal combustion engine | |
DE102004036762A1 (en) | Exhaust gas recirculation device for an internal combustion engine |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
R019 | Grant decision by federal patent court | ||
R020 | Patent grant now final |
Effective date: 20130105 |
|
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |