DE102019008956A1 - Exhaust system for an internal combustion engine, in particular a motor vehicle - Google Patents
Exhaust system for an internal combustion engine, in particular a motor vehicle Download PDFInfo
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- DE102019008956A1 DE102019008956A1 DE102019008956.1A DE102019008956A DE102019008956A1 DE 102019008956 A1 DE102019008956 A1 DE 102019008956A1 DE 102019008956 A DE102019008956 A DE 102019008956A DE 102019008956 A1 DE102019008956 A1 DE 102019008956A1
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- Prior art keywords
- burner
- air
- fuel
- internal combustion
- combustion engine
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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
- 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
- F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
- F01N3/0828—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents characterised by the absorbed or adsorbed substances
- F01N3/0842—Nitrogen oxides
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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
- F01N13/009—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
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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
- 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
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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
- 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
- F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
- F01N3/0814—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents combined with catalytic converters, e.g. NOx absorption/storage reduction catalysts
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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
- 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
- F01N3/2066—Selective catalytic reduction [SCR]
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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
- 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
- F01N3/30—Arrangements for supply of additional air
- F01N3/32—Arrangements for supply of additional air using air pump
- F01N3/323—Electrically driven air pumps
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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
- F01N2240/14—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 a fuel burner
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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
- F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
- F01N2900/06—Parameters used for exhaust control or diagnosing
- F01N2900/16—Parameters used for exhaust control or diagnosing said parameters being related to the exhaust apparatus, e.g. particulate filter or catalyst
- F01N2900/1602—Temperature of exhaust gas 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
Abstract
Die Erfindung betrifft eine Abgasanlage (10) für eine Verbrennungskraftmaschine (12), mit einem von Abgas der Verbrennungskraftmaschine (12) durchströmbaren Stickoxid-Speicherkatalysator (38), und mit einem mit Luft und einem Kraftstoff versorgbaren Brenner (48), mittels welchem ein den Kraftstoff und die Luft aufweisendes Kraftstoff-Luft-Gemisch zu verbrennen ist, wobei der Brenner (48) dazu ausgebildet ist, durch das Verbrennen des Kraftstoff-Luft-Gemisches den Stickoxid-Speicherkatalysator (38) zu erwärmen, wobei dem Brenner (38) eine eigene, unabhängig von der Verbrennungskraftmaschine (12) und elektrisch betreibbare Luftpumpe (56) zugeordnet ist, mittels welcher der Brenner (48) unabhängig von der Verbrennungskraftmaschine (12) mit der Luft versorgbar ist. The invention relates to an exhaust system (10) for an internal combustion engine (12), with a nitrogen oxide storage catalytic converter (38) through which exhaust gas from the internal combustion engine (12) can flow, and with a burner (48) that can be supplied with air and a fuel, by means of which a burner (48) can be supplied Fuel and the air-containing fuel-air mixture is to be burned, the burner (48) being designed to heat the nitrogen oxide storage catalytic converter (38) by burning the fuel-air mixture, the burner (38) being one Own, independently of the internal combustion engine (12) and electrically operated air pump (56) is assigned, by means of which the burner (48) can be supplied with the air independently of the internal combustion engine (12).
Description
Die Erfindung betrifft eine Abgasanlage für eine Verbrennungskraftmaschine, insbesondere eines Kraftwagens, gemäß dem Oberbegriff von Patentanspruch 1.The invention relates to an exhaust system for an internal combustion engine, in particular a motor vehicle, according to the preamble of claim 1.
Eine solche Abgasanlage für eine Verbrennungskraftmaschine, insbesondere eines Kraftwagens, ist beispielsweise bereits der
Aufgabe der vorliegenden Erfindung ist es, eine Abgasanlage der eingangs genannten Art derart weiterzuentwickeln, dass sich eine besonders vorteilhafte Abgasnachbehandlung realisieren lässt.The object of the present invention is to further develop an exhaust gas system of the type mentioned at the outset in such a way that a particularly advantageous exhaust gas aftertreatment can be implemented.
Diese Aufgabe wird durch eine Abgasanlage mit den Merkmalen des Patentanspruchs 1 gelöst. Vorteilhafte Ausgestaltungen mit zweckmäßigen Weiterbildungen der Erfindung sind in den übrigen Ansprüchen angegeben.This object is achieved by an exhaust system with the features of claim 1. Advantageous refinements with expedient developments of the invention are specified in the remaining claims.
Um eine Abgasanlage der im Oberbegriff des Patentanspruchs 1 angegebenen Art derart weiterzuentwickeln, dass eine besonders vorteilhafte Abgasnachbehandlung realisiert werden kann, ist es erfindungsgemäß vorgesehen, dass der Brenner dazu ausgebildet beziehungsweise derart angeordnet ist, dass durch das Verbrennen des Kraftstoff-Luft-Gemisches der Stickoxid-Speicherkatalysator erwärmt wird. Hierzu ist der Brenner beispielsweise in Strömungsrichtung des die Abgasanlage und somit den Stickoxid-Speicherkatalysator durchströmenden Abgases stromauf des Stickoxid-Speicherkatalysators angeordnet, sodass beispielsweise durch das Verbrennen des Kraftstoff-Luft-Gemisches das Abgas stromauf des Stickoxid-Speicherkatalysators beziehungsweise an einer stromauf des Stickoxid-Speicherkatalysators angeordneten Stelle erwärmt werden kann. Ferner ist es denkbar, dass der Brenner dazu ausgebildet beziehungsweise derart angeordnet ist, dass ein aus dem Verbrennen des Kraftstoff-Luft-Gemisches resultierendes und auch als Brennerabgas bezeichnetes Abgas in den einfach auch als Speicherkatalysator bezeichneten Stickoxid-Speicherkatalysator einleitbar ist, sodass beispielsweise der Speicherkatalysator von dem Brennerabgas durchströmbar ist. Hierdurch kann der Speicherkatalysator erwärmt werden. Insbesondere ist der Brenner beispielsweise dazu ausgebildet, durch das Verbrennen des Kraftstoff-Luft-Gemisches eine Flamme zu erzeugen, mittels welcher beispielsweise der Speicherkatalysator erwärmt werden kann. Dabei ist der Brenner beispielsweise dazu ausgebildet beziehungsweise derart angeordnet, dass die Flamme, insbesondere direkt, in dem Speicherkatalysator entsteht.In order to further develop an exhaust gas system of the type specified in the preamble of patent claim 1 in such a way that a particularly advantageous exhaust gas aftertreatment can be implemented, it is provided according to the invention that the burner is designed or arranged in such a way that the nitrogen oxide is caused by the combustion of the fuel-air mixture Storage catalyst is heated. For this purpose, the burner is arranged upstream of the nitrogen oxide storage catalytic converter, for example in the flow direction of the exhaust gas flowing through the exhaust system and thus the nitrogen oxide storage catalytic converter, so that, for example, by burning the fuel-air mixture, the exhaust gas is upstream of the nitrogen oxide storage catalytic converter or at an upstream of the nitrogen oxide storage catalytic converter. Storage catalyst arranged point can be heated. Furthermore, it is conceivable that the burner is designed or arranged such that an exhaust gas resulting from the combustion of the fuel-air mixture and also referred to as burner exhaust gas can be introduced into the nitrogen oxide storage catalytic converter, which is also simply referred to as the storage catalytic converter, so that, for example, the storage catalytic converter can flow through the burner exhaust gas. As a result, the storage catalytic converter can be heated. In particular, the burner is designed, for example, to generate a flame by burning the fuel-air mixture, by means of which, for example, the storage catalytic converter can be heated. The burner is designed, for example, or arranged in such a way that the flame, in particular directly, arises in the storage catalytic converter.
Des Weiteren ist es erfindungsgemäß vorgesehen, dass dem Brenner eine eigene, unabhängig von der Verbrennungskraftmaschine betreibbare und vorzugsweise elektrische Luftpumpe zugeordnet ist, mittels welcher der Brenner unabhängig von der Verbrennungskraftmaschine mit der Luft versorgt werden kann. Unter dem Merkmal, dass der Brenner mittels der Luftpumpe unabhängig von der Verbrennungskraftmaschine mit Luft versorgt werden kann, ist insbesondere zu verstehen, dass der Brenner mittels der Luftpumpe mit Luft versorgt werden kann, ohne dass hierbei eine durch die Luftpumpe bewirkte Versorgung der Verbrennungskraftmaschine mit Luft bewirkt wird. Insbesondere kann der Brenner mittels der Luftpumpe mit Luft auch dann versorgt werden, wenn die Verbrennungskraftmaschine deaktiviert beziehungsweise ausgeschaltet ist. In der Folge können beispielsweise eine Temperatur der Abgasanlage, ein auch als Lambda bezeichnetes Verbrennungsluftverhältnis, insbesondere in dem Brenner, und eine Sauerstoffmasse, insbesondere in dem Brenner besonders bedarfsgerecht eingestellt, insbesondere geregelt, werden. Die Verwendung der insbesondere frei regelbaren Luftpumpe ermöglicht eine zumindest nahezu autarke, zumindest nahezu frei einstellbare, insbesondere regelbare, Luftversorgung des Brenners, an den die Luftversorgung beispielsweise angeschlossen ist. Dadurch ist es beispielsweise möglich, für den Brenner oder in dem Brenner ein bestimmtes beziehungsweise vorgebbares Verbrennungsluftverhältnis einzustellen. Mit anderen Worten ist es möglich, unterschiedliche Werte des Verbrennungsluftverhältnisses einzustellen, sodass das Verbrennungsluftverhältnis beispielsweise auf 1 (stöchiometrisch), unter 1 (fett) oder über 1 (mager) eingestellt werden kann.Furthermore, it is provided according to the invention that the burner is assigned its own, preferably electric, air pump that can be operated independently of the internal combustion engine and by means of which the burner can be supplied with the air independently of the internal combustion engine. The feature that the burner can be supplied with air by means of the air pump independently of the internal combustion engine is to be understood in particular to mean that the burner can be supplied with air by means of the air pump without a supply of air to the internal combustion engine caused by the air pump is effected. In particular, the burner can also be supplied with air by means of the air pump when the internal combustion engine is deactivated or switched off. As a result, for example, a temperature of the exhaust system, a combustion air ratio also referred to as lambda, in particular in the burner, and an oxygen mass, in particular in the burner, can be adjusted, in particular regulated, as required. The use of the air pump, which is in particular freely adjustable, enables an at least almost autonomous, at least almost freely adjustable, in particular controllable, air supply to the burner to which the air supply is connected, for example. This makes it possible, for example, to set a specific or predeterminable combustion air ratio for the burner or in the burner. In other words, it is possible to set different values of the combustion air ratio, so that the combustion air ratio can be set, for example, to 1 (stoichiometric), below 1 (rich) or above 1 (lean).
Durch die Verwendung der beispielsweise zusätzlich zu der Verbrennungskraftmaschine vorgesehenen Luftpumpe ist es möglich, eine zumindest nahezu autarke und/oder eine zumindest frei einstellbare, insbesondere zumindest nahezu frei regelbare, Luftversorgung des Brenners zu realisieren. In der Folge ist es beispielsweise möglich, für den Brenner und somit beispielsweise auch für den stromab des Brenners angeordneten Speicherkat ein auch als Luftverhältnis bezeichnetes Verbrennungsluftverhältnis, insbesondere ein bestimmtes Verbrennungsluftverhältnis, einzustellen. Insbesondere ist es möglich, das Verbrennungsluftverhältnis in dem Brenner und/oder in dem Speicherkatalysator auf 1 (stöchiometrisch), auf unter 1 (fett) oder auf über 1 (mager) einzustellen.By using the air pump provided, for example, in addition to the internal combustion engine, it is possible to realize an at least almost self-sufficient and / or an at least freely adjustable, in particular at least almost freely controllable, air supply to the burner. As a result, it is possible, for example, to set a combustion air ratio, also known as an air ratio, in particular a specific combustion air ratio, for the burner and thus, for example, also for the storage cat arranged downstream of the burner. In particular, it is possible set the combustion air ratio in the burner and / or in the storage catalytic converter to 1 (stoichiometric), to less than 1 (rich) or to more than 1 (lean).
Durch Erwärmen des Speicherkatalysators ist es möglich, den Speicherkatalysator zumindest teilweise zu denoxieren, das heißt beispielsweise zu entgiften beziehungsweise zu entschwefeln. Hierdurch kann eine besonders vorteilhafte Einspeicherbarkeit von Stickoxiden in den Speicherkatalysator realisiert beziehungsweise wiederhergestellt werden. Dadurch, dass eine Versorgung des Brenners mit der Luft durch die Luftpumpe zumindest nahezu frei eingestellt, insbesondere geregelt, werden kann, kann eine besonders vorteilhafte Temperatur des Abgases beziehungsweise des Speicherkatalysators realisiert werden. Insbesondere ist es möglich, eine zur Denoxierung des Speicherkatalysators erforderliche beziehungsweise vorteilhafte Temperatur von rund 600 Grad Celsius einzustellen. Ferner ist es möglich, durch Verwendung der Luftpumpe ein für die Denoxierung des Speicherkatalysators vorteilhaftes Verbrennungsluftverhältnis von etwa 0,9 einzustellen, wobei das Verbrennungsluftverhältnis auch als Lambda bezeichnet wird. Da beispielsweise sowohl der Brenner als auch seine Luftversorgung, das heißt die Luftpumpe, zumindest nahezu autark beziehungsweise unabhängig von der auch Motor oder Verbrennungsmotor bezeichneten Verbrennungskraftmaschine betrieben werden können, kann die Denoxierung des Speicherkatalysators beispielsweise bei abgestelltem Motor und/oder in einem Schubbetrieb des Motors und/oder in einem Leerlauf des Motors durchgeführt werden. Beispielsweise ist der Motor im Rahmen einer Start-Stopp-Funktion automatisch, insbesondere an einer Ampel, abgestellt. Insgesamt ist erkennbar, dass der Brenner unabhängig von einem Betriebszustand der Verbrennungskraftmaschine betrieben, insbesondere geregelt, werden kann, wodurch beispielsweise unabhängig von dem Betriebszustand der Verbrennungskraftmaschine der Stickoxid-Speicherkatalysator denoxiert werden kann.By heating the storage catalytic converter, it is possible to at least partially deoxygenate the storage catalytic converter, that is, for example, to detoxify or desulphurise. In this way, a particularly advantageous storability of nitrogen oxides in the storage catalytic converter can be realized or restored. Because a supply of the burner with the air by the air pump can be set at least almost freely, in particular regulated, a particularly advantageous temperature of the exhaust gas or the storage catalytic converter can be realized. In particular, it is possible to set a temperature of around 600 degrees Celsius, which is required or advantageous for denoxing the storage catalytic converter. Furthermore, it is possible to set a combustion air ratio of approximately 0.9, which is advantageous for the denoxing of the storage catalytic converter, by using the air pump, the combustion air ratio also being referred to as lambda. For example, since both the burner and its air supply, i.e. the air pump, can be operated at least almost independently or independently of the internal combustion engine, which is also referred to as the engine or internal combustion engine, the storage catalyst can be de-anodized, for example, when the engine is switched off and / or when the engine is coasting and / or be performed while the engine is idling. For example, the engine is switched off automatically as part of a start-stop function, in particular at a traffic light. Overall, it can be seen that the burner can be operated, in particular regulated, independently of an operating state of the internal combustion engine, as a result of which, for example, the nitrogen oxide storage catalytic converter can be denoxed independently of the operating state of the internal combustion engine.
Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung eines bevorzugten Ausführungsbeispiels sowie anhand der Zeichnung. Die vorstehend in der Beschreibung genannten Merkmale und Merkmalskombinationen sowie die nachfolgend in der Figurenbeschreibung genannten und/oder in der einzigen Figur alleine gezeigten Merkmale und Merkmalskombinationen sind nicht nur in der jeweils angegebenen Kombination, sondern auch in anderen Kombinationen oder in Alleinstellung verwendbar, ohne den Rahmen der Erfindung zu verlassen.Further advantages, features and details of the invention result from the following description of a preferred exemplary embodiment and from the drawing. The features and combinations of features mentioned above in the description, as well as the features and combinations of features mentioned below in the description of the figures and / or shown alone in the single figure, can be used not only in the combination indicated in each case, but also in other combinations or on their own, without the frame to leave the invention.
Die Zeichnung zeigt in der einzigen Fig. eine schematische Darstellung einer erfindungsgemäßen Abgasanlage für eine Verbrennungskraftmaschine, insbesondere eines Kraftwagens.In the single figure, the drawing shows a schematic illustration of an exhaust system according to the invention for an internal combustion engine, in particular a motor vehicle.
Die einzige Fig. zeigt in einer schematischen Darstellung eine Abgasanlage
Die Verbrennungskraftmaschine
Dabei umfasst die Verbrennungskraftmaschine
Die Abgasanlage
Darüber hinaus ist eine Dosiereinrichtung
Die Abgasanlage
Um nun eine besonders vorteilhafte Abgasnachbehandlung realisieren zu können, ist der Brenner
Bei dem Kraftstoff, mit welchem der Brenner
Des Weiteren ist dem Brenner
Dabei ist beispielsweise eine dem Brenner
Außerdem kann eine Leitung
BezugszeichenlisteReference list
- 1010th
- AbgasanlageExhaust system
- 1212th
- VerbrennungskraftmaschineInternal combustion engine
- 1414
- Tanktank
- 1616
- NiederdruckpumpeLow pressure pump
- 1818th
- Hochdruckpumpehigh pressure pump
- 2020
- InjektorInjector
- 2222
- Zylindercylinder
- 2424th
- AnsaugtraktIntake tract
- 2626
- AbgastraktExhaust tract
- 2828
- AufladeeinrichtungCharger
- 3030th
- AbgasturboladerExhaust gas turbocharger
- 3232
- Verdichtercompressor
- 3434
- Turbineturbine
- 3636
- AbgasnachbehandlungseinrichtungExhaust aftertreatment device
- 3838
- Stickoxid-SpeicherkatalysatorNitrogen oxide storage catalytic converter
- 4040
- PartikelfilterParticle filter
- 4242
- SCR-KatalysatorSCR catalytic converter
- 4444
- DosiereinrichtungDosing device
- 4646
- MischkammerMixing chamber
- 4848
- Brennerburner
- 5050
- Flammeflame
- 5252
- KraftstoffleitungFuel line
- 5454
- Versorgungsleitungsupply line
- 5656
- LuftpumpeAir pump
- 5858
- LuftleitungAir duct
- 6060
- VentilelementValve element
- 6262
- VentilelementValve element
- 6464
- SteuergerätControl unit
- 6666
- Leitungmanagement
- S1S1
- StelleJob
- V1V1
- VerbindungsstelleLiaison
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 documents listed by the applicant has been generated automatically and is only included 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 PatentliteraturPatent literature cited
- DE 102008032601 A1 [0002]DE 102008032601 A1 [0002]
- DE 102010027984 A1 [0002]DE 102010027984 A1 [0002]
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE102019008956.1A DE102019008956A1 (en) | 2019-12-20 | 2019-12-20 | Exhaust system for an internal combustion engine, in particular a motor vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019008956.1A DE102019008956A1 (en) | 2019-12-20 | 2019-12-20 | Exhaust system for an internal combustion engine, in particular a motor vehicle |
Publications (1)
Publication Number | Publication Date |
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DE102019008956A1 true DE102019008956A1 (en) | 2020-07-09 |
Family
ID=71104148
Family Applications (1)
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DE102019008956.1A Withdrawn DE102019008956A1 (en) | 2019-12-20 | 2019-12-20 | Exhaust system for an internal combustion engine, in particular a motor vehicle |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102020126255A1 (en) | 2020-10-07 | 2022-04-07 | Bayerische Motoren Werke Aktiengesellschaft | Internal combustion engine for a motor vehicle and motor vehicle |
US11506136B1 (en) | 2021-07-22 | 2022-11-22 | Tenneco Automotive Operating Company Inc. | Selective catalytic reduction catalyst pre-heating and exhaust burner air control |
WO2023046361A1 (en) * | 2021-09-21 | 2023-03-30 | Mercedes-Benz Group AG | Internal combustion engine for a motor vehicle, in particular for a car |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008032601A1 (en) | 2008-07-11 | 2010-01-14 | Volkswagen Ag | Exhaust gas flow condition adjusting method for e.g. diesel engine, of motor vehicle, involves supplying secondary air mass flow to burner, where burner lambda value produced from injection amount and mass flow amounts to less than one |
DE102010027984A1 (en) | 2010-04-20 | 2011-10-20 | Robert Bosch Gmbh | Method for operating exhaust system of internal combustion engine in motor vehicle, involves guiding fresh air by exhaust system, where fresh air is guided through exhaust duct during operating state of internal combustion engine |
-
2019
- 2019-12-20 DE DE102019008956.1A patent/DE102019008956A1/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008032601A1 (en) | 2008-07-11 | 2010-01-14 | Volkswagen Ag | Exhaust gas flow condition adjusting method for e.g. diesel engine, of motor vehicle, involves supplying secondary air mass flow to burner, where burner lambda value produced from injection amount and mass flow amounts to less than one |
DE102010027984A1 (en) | 2010-04-20 | 2011-10-20 | Robert Bosch Gmbh | Method for operating exhaust system of internal combustion engine in motor vehicle, involves guiding fresh air by exhaust system, where fresh air is guided through exhaust duct during operating state of internal combustion engine |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102020126255A1 (en) | 2020-10-07 | 2022-04-07 | Bayerische Motoren Werke Aktiengesellschaft | Internal combustion engine for a motor vehicle and motor vehicle |
US11506136B1 (en) | 2021-07-22 | 2022-11-22 | Tenneco Automotive Operating Company Inc. | Selective catalytic reduction catalyst pre-heating and exhaust burner air control |
WO2023046361A1 (en) * | 2021-09-21 | 2023-03-30 | Mercedes-Benz Group AG | Internal combustion engine for a motor vehicle, in particular for a car |
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