DE102018205771A1 - Internal combustion engine with an exhaust system - Google Patents
Internal combustion engine with an exhaust system Download PDFInfo
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- DE102018205771A1 DE102018205771A1 DE102018205771.0A DE102018205771A DE102018205771A1 DE 102018205771 A1 DE102018205771 A1 DE 102018205771A1 DE 102018205771 A DE102018205771 A DE 102018205771A DE 102018205771 A1 DE102018205771 A1 DE 102018205771A1
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- exhaust
- internal combustion
- exhaust pipe
- combustion engine
- exhaust gas
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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
- 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
- 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
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/08—Other arrangements or adaptations of exhaust conduits
-
- 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
- F01N3/04—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using liquids
- F01N3/043—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using liquids without contact between liquid and exhaust gases
- F01N3/046—Exhaust manifolds with cooling jacket
-
- 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
-
- 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
- F01N9/00—Electrical control of exhaust gas treating apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
- F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
- F02D13/0257—Independent control of two or more intake or exhaust valves respectively, i.e. one of two intake valves remains closed or is opened partially while the other is fully opened
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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
- F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
- F01N2240/36—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being an exhaust flap
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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
- F01N2260/00—Exhaust treating devices having provisions not otherwise provided for
- F01N2260/02—Exhaust treating devices having provisions not otherwise provided for for cooling the device
-
- 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
- F01N2410/02—By-passing, at least partially, exhaust from inlet to outlet of apparatus, to atmosphere or to other device in case of high temperature, e.g. overheating of catalytic reactor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/021—Introducing corrections for particular conditions exterior to the engine
- F02D41/0235—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus
- F02D2041/0265—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to decrease temperature of the exhaust gas treating apparatus
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- 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
-
- 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
- Y02T10/40—Engine management systems
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Toxicology (AREA)
- Exhaust Gas After Treatment (AREA)
- Supercharger (AREA)
- Exhaust Silencers (AREA)
Abstract
Brennkraftmaschine mit zumindest zwei Zylindern mit je zwei Gaswechselauslassventilen und mit einer über die Gaswechselauslassventile Abgas führend verbindbare Abgasanlage, wobei in der Abgasanlage ein Turbinengehäuse mit einem Turbinenrad eines Abgasturboladers und in Strömungsrichtung eines Abgases hinter dem Turbinengehäuse eine erste Abgasreinigungsanlage angeordnet ist, wobei zwischen der Brennkraftmaschine und dem Turbinengehäuse ein erstes Abgasrohr von der Abgasanlage Abgas führend abzweigt und nach der ersten Abgasreinigungsanlage wieder in die Abgasanlage mündet, wobei der Abgasturbolader ein Mono-Scroll-Abgasturbolader ist, wobei von jeden Zylinder ein erstes Gaswechselauslassventil über zumindest ein zweites Abgasrohr mit dem Scroll des Turbinengehäuses und ein zweites Gaswechselventil über zumindest ein drittes Abgasrohr mit dem ersten Abgasrohr verbindbar ist.Durch die erfindungsgemäße Ausgestaltung können höhere spezifische Leistungen für die Brennkraftmaschine erreicht werden, bei gleichzeitig thermischem Bauteilschutz.Internal combustion engine with at least two cylinders, each with two gas exchange outlet valves and with a gas exchange outlet valves exhaust leading connectable exhaust system, wherein in the exhaust system, a turbine housing with a turbine of an exhaust gas turbocharger and in the flow direction of an exhaust gas behind the turbine housing, a first emission control system is arranged, wherein between the internal combustion engine and the turbine housing a first exhaust pipe from the exhaust system exhaust leading branches and after the first emission control system opens into the exhaust system, wherein the exhaust gas turbocharger is a mono-scroll exhaust gas turbocharger, each cylinder from a first Gaswechselauslassventil at least a second exhaust pipe with the scroll of the turbine housing and a second gas exchange valve via at least a third exhaust pipe with the first exhaust pipe is connectable.Durch the inventive design higher specific power for the Brennkraftma can be achieved with simultaneous thermal component protection.
Description
Die Erfindung betrifft eine Brennkraftmaschine mit einer Abgasanlage mit den Merkmalen aus dem Oberbegriff des Patentanspruchs 1.The invention relates to an internal combustion engine having an exhaust system with the features of the preamble of patent claim 1.
Zum technischen Umfeld wird beispielsweise auf die Deutsche Offenlegungsschrift
Eine Weiterbildung der aus der
Bei Ottobrennkraftmaschinen wird bei hohen Motordrehzahlen und hoher Leistung üblicher Weise das Kraftstoff-Luft-Gemisch angereichert (Lambda < 1), um die abgasführenden Bauteile vor thermischer Überbeanspruchung zu schützen. Dies gilt insbesondere für aufgeladene Brennkraftmaschinen, bei denen die Abgasturbine und der Katalysator ansonsten durch zu hohe Abgastemperaturen zerstört werden könnten.In petrol engines, the fuel-air mixture is enriched (lambda <1) at high engine speeds and high power usually way to protect the exhaust gas-carrying components from thermal overload. This is especially true for supercharged internal combustion engines, in which the exhaust gas turbine and the catalyst could otherwise be destroyed by excessive exhaust gas temperatures.
Die Gemischanreicherung führt zu hohen CO-Konzentrationen im Abgas und das CO wird im Katalysator aufgrund des im Abgas vorherrschenden Sauerstoffmangels in nachteiliger Weise nicht oxidiert. Der Katalysator arbeitet in diesem Betriebsbereich nicht mehr als 3-Wege-Katalysator, da kein stöchiometrisches Gemisch (Lambda = 1) eingestellt wird. Damit wird die Erfüllung zukünftiger Zulassungsanforderung für Kraftfahrzeuge gefährdet.The mixture enrichment leads to high CO concentrations in the exhaust gas and the CO is not oxidized disadvantageously in the catalyst due to the prevailing in the exhaust oxygen deficiency. The catalyst no longer works as a 3-way catalyst in this operating range because no stoichiometric mixture (lambda = 1) is set. This endangers the fulfillment of future approval requirements for motor vehicles.
Heutige Abgasanlagen, insbesondere von turboaufgeladenen OttoBrennkraftmaschinen verfügen typischerweise über einen Turbinenbypass, auch Waste-Gate genannt, mit regelbarem Abgas-Massenstrom durch das Waste-Gate. Mit diesem Waste-Gate wird der Abgas-Massenstrom über die Turbine und damit die Turbinenleistung und damit der gewünschte Ladedruck eingestellt. Nach der Turbine und nach der Zuführung des Waste-Gate-Kanals zum Hauptstrom des Abgases befindet sich typischerweise so nah wie möglich, um ein schnelles Aufheizen nach dem Start der Brennkraftmaschine zu gewährleisten, ein Katalysator (auch motornaher Katalysator genannt). Beim Start der Brennkraftmaschine wird das Waste-Gate zudem weit geöffnet, um für das Aufheizen möglichst viel heißes Abgas direkt auf den motornahen Katalysator zu leiten.Today's exhaust systems, in particular of turbocharged Otto internal combustion engines typically have a turbine bypass, also called waste gate, with adjustable exhaust gas mass flow through the waste gate. With this waste gate, the exhaust gas mass flow through the turbine and thus the turbine power and thus the desired boost pressure is set. After the turbine and after the supply of the waste gate channel to the main flow of the exhaust gas is typically as close as possible, to ensure a rapid heating after the start of the engine, a catalyst (also called close-coupled catalyst). When starting the engine, the waste gate is also wide open to direct as much hot exhaust gas directly to the close-coupled catalyst for heating.
In der Volllast, bei hohen Leistungen der Brennkraftmaschine, müssen typischerweise hohe Abgas-Massenströme (ca. 30 - 45%) über das Waste-Gate an der Turbine vorbeigeleitet werden. Da dieses Abgas nicht in der Turbine expandiert wird, ist es sehr heiß. Damit liegt die mittlere Abgastemperatur nach dem Mischen von Turbinenaustritts-Abgas-Massenstrom und Waste-Gate-Abgas-Massenstrom höher als die Turbinenaustrittstemperatur. Sie kann die maximale, für den Katalysator erlaubte Abgas-Eintrittstemperatur übersteigen. In Folge muss z. B. die Leistung der Brennkraftmaschine gedrosselt werden, was nicht gewünscht ist.In full load, at high power levels of the internal combustion engine, typically high exhaust gas mass flows (about 30 - 45%) have to be routed past the turbine via the waste gate. Since this exhaust gas is not expanded in the turbine, it is very hot. Thus, the average exhaust gas temperature after mixing turbine exhaust mass flow and wastegate exhaust mass flow is higher than the turbine exhaust temperature. It may exceed the maximum exhaust gas inlet temperature allowed for the catalyst. As a result, z. B. the performance of the internal combustion engine are throttled, which is not desirable.
Aufgabe der vorliegenden Erfindung ist es, eine Maßnahme aufzuzeigen, mit der höhere spezifische Leistungen der Brennkraftmaschine erreicht werden können, ohne eine thermische Schädigung des motornahen Katalysators.The object of the present invention is to identify a measure with which higher specific powers of the internal combustion engine can be achieved without thermal damage to the catalyst close to the engine.
Diese Aufgabe wird durch die Merkmale im kennzeichnenden Teil des Patentanspruchs 1 gelöst.This object is solved by the features in the characterizing part of patent claim 1.
Vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen beschrieben.Advantageous developments of the invention are described in the subclaims.
Aufgrund der erfindungsgemäßen Ausgestaltung der Brennkraftmaschine mit der Abgasanlage sind deutlich höhere Leistungen der Brennkraftmaschine erzielbar, ohne eine thermische Schädigung des motornahen Katalysators.Due to the inventive design of the internal combustion engine with the exhaust system significantly higher performance of the internal combustion engine can be achieved without thermal damage to the engine near catalyst.
Mit der Ausgestaltung gemäß Patentanspruch 2 können Zylindergruppen gemäß der Zündreihenfolge zusammen gefasst werden, wodurch beispielsweise der Abgasgegendruck reduziert, oder die Beaufschlagung des Turbinenrades mit Abgas optimiert werden kann. Werden Zylindergruppen, wie beispielsweise für eine vierzylindrige Brennkraftmaschine gebildet, so werden die zweiten und die dritten Abgasrohre bevorzugt erst kurz vor dem Turbinenrad oder kurz vor dem ersten Abgasrohr zusammen geführt. With the embodiment according to claim 2 cylinder groups can be taken together according to the firing order, which for example reduces the exhaust back pressure, or the admission of the turbine wheel can be optimized with exhaust. If cylinder groups are formed, as for example for a four-cylinder internal combustion engine, the second and the third exhaust pipes are preferably brought together only shortly before the turbine wheel or shortly before the first exhaust pipe.
Mit der Ausgestaltung gemäß Patentanspruch 3 ist eine gesteuerte oder geregelte Aufteilung des Abgasmassenstroms darstellbar, um eine Überhitzung der ersten Abgasreinigungsanlage nach der Turbine des Abgasturboladers zu vermeiden.With the embodiment according to claim 3, a controlled or regulated division of the exhaust gas mass flow can be displayed in order to avoid overheating of the first exhaust gas purification system after the turbine of the exhaust gas turbocharger.
Um eine Schadstoffreinigung des durch das Waste-Gate geleiteten Abgases zu gewährleisten, wird vorzugsweise gemäß Patentanspruch 4 in dem ersten Abgasrohr eine zweite Abgasreinigungsanlage vorgesehen.In order to ensure pollutant cleaning of the exhaust gas conducted through the waste gate, a second exhaust gas purification system is preferably provided in the first exhaust pipe according to claim 4.
Um eine bestmögliche Abgasreinigung zu erzielen, wird gemäß Patentanspruch 5 in der Abgasanlage in Strömungsrichtung des Abgases hinter einer Einmündung des ersten Abgasrohrs eine dritte Abgasreinigungsanlage vorgesehen.In order to achieve the best possible emission control, a third emission control system is provided according to claim 5 in the exhaust system in the flow direction of the exhaust gas behind a junction of the first exhaust pipe.
Um eine größtmögliche Variabilität im Aufheizverhalten und bezüglich der Abgasreinigung zu erzielen zweigt gemäß Patentanspruch 6 von dem zweiten Abgasrohr und dem dritten Abgasrohr in Strömungsrichtung des Abgases vor dem Abgasturbolader ein sechstes Abgasrohr ab und mündet vor der ersten Abgasreinigungsanlage wieder in die Abgasanlage.In order to achieve the greatest possible variability in the heating behavior and with respect to the exhaust gas purification branches off according to
In einer weiteren besonders bevorzugten Ausführungsform wird gemäß Patentanspruch 7 in dem sechsten Abgasrohr ein zweites Absperrelement angeordnet, mit dem das sechste Abgasrohr absperrbar ist. Durch diese Ausgestaltung ist das Katalysatorheizen mit dem Bypass-Abgasmassenstrom möglich.In a further particularly preferred embodiment, a second shut-off element is arranged according to claim 7 in the sixth exhaust pipe, with which the sixth exhaust pipe is shut off. With this configuration, the catalyst heating with the bypass exhaust gas mass flow is possible.
In einer nochmaligen Weiterbildung der Erfindung ist gemäß Patentanspruch 8 für jeden Zylinder ein Gaswechselauslassventil deaktivierbar. Ist das erste Abgasrohr geschlossen, erfolgen in einer Teillast der Brennkraftmaschine die Ladedruckregelung und das Katalysatorheizen über das sechste Abgasrohr. In a further development of the invention, a gas exchange outlet valve can be deactivated according to
In einer weiteren bevorzugten Ausführungsform ist das sechste Abgasrohr gem. Patentanspruch 9 kühlbar, beispielsweise mit einem Kühlmittel der Brennkraftmaschine.In a further preferred embodiment, the sixth exhaust pipe is gem.
In wiederum einer weiteren bevorzugten Ausführungsformkann kann auch das erste Abgasrohr
Im Folgenden ist die Erfindung anhand von drei Figuren näher erläutert.
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1 zeigt ein erstes Ausführungsbeispiel für eine erfindungsgemäße Brennkraftmaschine mit einer Abgasanlage. -
2 zeigt ein zweites Ausführungsbeispiel für eine erfindungsgemäße Brennkraftmaschine mit einer Abgasanlage. -
3 zeigt ein drittes Ausführungsbeispiel für eine erfindungsgemäße Brennkraftmaschine mit einer Abgasanlage.
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1 shows a first embodiment of an internal combustion engine according to the invention with an exhaust system. -
2 shows a second embodiment of an internal combustion engine according to the invention with an exhaust system. -
3 shows a third embodiment of an internal combustion engine according to the invention with an exhaust system.
Im Folgenden gelten in den
Das Abgas strömt je Zylinder
Erfindungsgemäß ist der Abgasturbolader
Das zweite 8 Abgasrohr und das dritte Abgasrohr
Durch das zweite Abgasrohr
Nach dem Abgasturbolader
Am Übertritt von den zweiten Abgasrohren
Bei einer Volllast der Brennkraftmaschine
- - Vorteil: Temperaturabsenkung des Abgasmassenstromes vor der ersten Abgasreinigungsvorrichtung
6 bei Nennleistung ggü. dem Zumischen des Wastegate-Abgasmassenstroms vor der erstenAbgasreinigungsanlage 6 . - - Katheizen dauert länger, da der Waste-Gate-Abgasmassenstrom keinen Beitrag liefert.
- - Ventile müssen ggf. an Abgasmassenstrom angepasst werden.
- - Nachteil: Aufwändigerer Abgaskrümmer, Waste-Gate muss dicht sein.
- - Advantage: Temperature reduction of the exhaust gas mass flow before the first
emission control device 6 at nominal power against. the admixing of the waste gas exhaust gas mass flow before the firstemission control system 6 , - - Catalyzing takes longer because the waste gas exhaust gas mass flow does not contribute.
- - Valves may need to be adapted to the exhaust gas mass flow.
- - Disadvantage: more complicated exhaust manifold, waste gate must be tight.
In einer weiteren bevorzugten Ausführungsform, die figürlich nicht dargestellt ist, kann das erste Abgasrohr
In einer weiteren bevorzugten Ausführungsform, die figürlich nicht dargestellt ist, kann das sechste Abgasrohr
-
- Vorteil: Temperaturabsenkung vor der ersten Abgasreinigungsanlage
6 bei Nennleistung ggü. dem Zumischen des Waste-Gate-Abgasmassenstroms vor der ersten Abgasreinigungsanlage6 .- Advantage: Temperature reduction before the firstemission control system 6 at nominal power against. the admixing of the waste gas exhaust gas mass flow upstream of the firstemission control system 6 , - - Katheizen ist über den Waste-Gate-Kanal möglich.- Catalyzation is possible via the Waste Gate channel.
- - Ventile müssen ggf. an Abgas-Massendurchsätze angepasst werden.- Valves may need to be adjusted to exhaust mass flow rates.
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- Nachteil: Aufwändigerer Krümmer, zwei Waste-Gates, zwei schaltbare Absperrelemente
10 ,13 .- Disadvantage: Elaborate manifold, two waste gates, two switchable shut-offelements 10 .13 ,
- - Vorteil: Temperaturabsenkung vor der ersten Abgasreinigungsanlage
6 bei Nennleistung ggü. dem Zumischen des Waste-Gate-Abgasmassenstroms vor der ersten Abgasreinigungsanlage6 über die schaltbaren Gaswechselauslassventile kann der Bypass sicher abgedichtet werden. - - Katheizen ist über den Waste-Gate-Kanal möglich.
- - Ventile müssen ggf. an Abgasmassen-Durchsätze angepasst werden.
- - Nachteil: Aufwändigerer Krümmer, zwei Wastegates, schaltbare Absperrelemente
10 ,13 .
- - Advantage: Temperature reduction before the first
emission control system 6 at nominal power against. the admixing of the waste gas exhaust gas mass flow upstream of the firstemission control system 6 The bypass can be safely sealed via the switchable gas exchange outlet valves. - - Catalyzation is possible via the Waste Gate channel.
- - Valves may need to be adjusted to exhaust mass flow rates.
- - Disadvantage: more complicated manifold, two waste gates, switchable shut-off
elements 10 .13 ,
Selbstverständlich kann die erfindungsgemäße Ausgestaltung auch für Dreizylinder- oder V8-Brennkraftmaschinen oder Reihen-Sechszylinder- oder V12-Brennkraftmaschinen eingesetzt werden.Of course, the inventive design can also be used for three-cylinder or V8 internal combustion engines or in-line six-cylinder or V12 internal combustion engines.
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 1.1.
- BrennkraftmaschineInternal combustion engine
- 2.Second
- Zylindercylinder
- 3.Third
- Abgasanlageexhaust system
- 4.4th
- Turbinenradturbine
- 5.5th
- Abgasturboladerturbocharger
- 6.6th
- erste Abgasreinigungsanlagefirst emission control system
- 7.7th
- erstes Abgasrohrfirst exhaust pipe
- 8.8th.
- zweites Abgasrohrsecond exhaust pipe
- 9.9th
- drittes Abgasrohrthird exhaust pipe
- 10.10th
- erstes Absperrelementfirst shut-off element
- 11.11th
- zweite Abgasreinigungsanlagesecond emission control system
- 12.12th
- dritte Abgasreinigungsanlagethird emission control system
- 13.13th
- zweites Absperrelementsecond shut-off element
- 15.15th
- AnsauggeräuschdämpferAnsauggeräuschdämpfer
- 16.16th
- Verdichtercompressor
- 17.17th
- LadeluftkühlerIntercooler
- 18.18th
- Drosselelementthrottle element
- 1919
- Luftsammlerplenum
- 21.21st
- sechstes Abgasrohrsixth exhaust pipe
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 2851675 A1 [0002, 0003]DE 2851675 A1 [0002, 0003]
- DE 102017218837 [0003]DE 102017218837 [0003]
Claims (10)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018205771.0A DE102018205771A1 (en) | 2018-04-17 | 2018-04-17 | Internal combustion engine with an exhaust system |
PCT/EP2019/057178 WO2019201549A1 (en) | 2018-04-17 | 2019-03-22 | Internal combustion engine with an exhaust gas system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018205771.0A DE102018205771A1 (en) | 2018-04-17 | 2018-04-17 | Internal combustion engine with an exhaust system |
Publications (1)
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DE102018205771A1 true DE102018205771A1 (en) | 2019-10-17 |
Family
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DE102018205771.0A Pending DE102018205771A1 (en) | 2018-04-17 | 2018-04-17 | Internal combustion engine with an exhaust system |
Country Status (2)
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DE (1) | DE102018205771A1 (en) |
WO (1) | WO2019201549A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102022103116A1 (en) | 2022-02-10 | 2023-08-10 | Ford Global Technologies, Llc | Controlling an exhaust flow of an internal combustion engine |
Citations (6)
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DE2851675A1 (en) | 1978-11-29 | 1980-06-12 | August Paul Dr H C | IC engine exhaust gas after burner - has one catalyst block contg. coarsely grained active material followed by spaced second block contg. finely grained material |
DE102005039012A1 (en) * | 2005-08-18 | 2007-02-22 | Volkswagen Ag | Internal combustion engine with turbocharging |
EP2123877A1 (en) * | 2007-03-14 | 2009-11-25 | Toyota Jidosha Kabusiki Kaisha | Exhaust control device for internal combustion engine |
US20110131978A1 (en) * | 2008-12-26 | 2011-06-09 | Toyota Jidosha Kabushiki Kaisha | Exhaust gas purifying apparatus for supercharger-equipped internal combustion engine |
DE102011089658B4 (en) * | 2010-12-27 | 2014-08-21 | Toyota Jidosha Kabushiki Kaisha | exhaust pipe |
DE102017218837A1 (en) | 2017-10-23 | 2019-04-25 | Bayerische Motoren Werke Aktiengesellschaft | Internal combustion engine with an exhaust system |
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DE102007021526A1 (en) * | 2007-05-04 | 2008-11-06 | Volkswagen Ag | Combustion engine, especially for motor vehicle, uses waste-gate for exhaust-gas turbo-charger with additional waste-gate joined to coolant circuit |
DE102009049394A1 (en) * | 2009-10-14 | 2011-04-21 | 2G Energietechnik Gmbh | Load control device and method of load control for a motor |
WO2015006194A1 (en) * | 2013-07-10 | 2015-01-15 | Borgwarner Inc. | Exhaust aftertreatment system and method |
DE102014208703A1 (en) * | 2014-05-09 | 2015-11-12 | Ford Global Technologies, Llc | Exhaust-driven turbocharged internal combustion engine with at least two turbines and method for operating such an internal combustion engine |
DE102015114356A1 (en) * | 2014-10-07 | 2016-04-07 | Halla Visteon Climate Control Corporation | Device of a system for guiding air of an internal combustion engine in a motor vehicle |
DE102016010572A1 (en) * | 2016-09-02 | 2018-03-08 | Man Truck & Bus Ag | Drive device, in particular for a vehicle |
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2018
- 2018-04-17 DE DE102018205771.0A patent/DE102018205771A1/en active Pending
-
2019
- 2019-03-22 WO PCT/EP2019/057178 patent/WO2019201549A1/en active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2851675A1 (en) | 1978-11-29 | 1980-06-12 | August Paul Dr H C | IC engine exhaust gas after burner - has one catalyst block contg. coarsely grained active material followed by spaced second block contg. finely grained material |
DE102005039012A1 (en) * | 2005-08-18 | 2007-02-22 | Volkswagen Ag | Internal combustion engine with turbocharging |
EP2123877A1 (en) * | 2007-03-14 | 2009-11-25 | Toyota Jidosha Kabusiki Kaisha | Exhaust control device for internal combustion engine |
US20110131978A1 (en) * | 2008-12-26 | 2011-06-09 | Toyota Jidosha Kabushiki Kaisha | Exhaust gas purifying apparatus for supercharger-equipped internal combustion engine |
DE102011089658B4 (en) * | 2010-12-27 | 2014-08-21 | Toyota Jidosha Kabushiki Kaisha | exhaust pipe |
DE102017218837A1 (en) | 2017-10-23 | 2019-04-25 | Bayerische Motoren Werke Aktiengesellschaft | Internal combustion engine with an exhaust system |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102022103116A1 (en) | 2022-02-10 | 2023-08-10 | Ford Global Technologies, Llc | Controlling an exhaust flow of an internal combustion engine |
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