DE102019123757A1 - Aftertreatment system Aftertreatment system - Google Patents
Aftertreatment system Aftertreatment system Download PDFInfo
- Publication number
- DE102019123757A1 DE102019123757A1 DE102019123757.2A DE102019123757A DE102019123757A1 DE 102019123757 A1 DE102019123757 A1 DE 102019123757A1 DE 102019123757 A DE102019123757 A DE 102019123757A DE 102019123757 A1 DE102019123757 A1 DE 102019123757A1
- Authority
- DE
- Germany
- Prior art keywords
- exhaust
- exhaust gas
- valve
- treatment system
- particulate filter
- 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.)
- Pending
Links
Images
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
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/009—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series
- F01N13/0093—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series the purifying devices are of the same type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/031—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 having means for by-passing filters, e.g. when clogged or during cold engine start
-
- 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
-
- 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
- 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
- F01N2410/12—By-passing, at least partially, exhaust from inlet to outlet of apparatus, to atmosphere or to other device in case of absorption, adsorption or desorption of exhaust gas constituents
-
- 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)
- Processes For Solid Components From Exhaust (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
Die Erfindung betrifft ein Abgasnachbehandlungssystem (1) für die Nachbehandlung von Abgas eines Verbrennungsmotors (9). Das Abgasnachbehandlungssystem (1) umfasst einen ersten Partikelfilter (2) und einen zweiten Partikelfilter (3), wobei der erste Partikelfilter (2) stromaufwärts des zweiten Partikelfilters (3) angeordnet ist. The invention relates to an exhaust aftertreatment system (1) for the after-treatment of exhaust gas of an internal combustion engine (9). The exhaust aftertreatment system (1) comprises a first particulate filter (2) and a second particulate filter (3), wherein the first particulate filter (2) is arranged upstream of the second particulate filter (3).
Description
Die Erfindung betrifft ein Abgasnachbehandlungssystem.The invention relates to an exhaust aftertreatment system.
Die
Das erfindungsgemäße Abgasnachbehandlungssystem für die Nachbehandlung von Abgas eines Verbrennungsmotors umfasst einen ersten Partikelfilter und einen zweiten Partikelfilter, wobei der erste Partikelfilter stromaufwärts des zweiten Partikelfilters angeordnet ist.The exhaust aftertreatment system according to the invention for the after-treatment of exhaust gas of an internal combustion engine comprises a first particle filter and a second particle filter, wherein the first particle filter is arranged upstream of the second particle filter.
Das erfindungsgemäße Abgasnachbehandlungssystem ist insbesondere geeignet für den Einsatz in Fahrzeugen, welche vollständig und/oder teilweise verbrennungsmotorbetrieben sind.The exhaust aftertreatment system according to the invention is particularly suitable for use in vehicles that are completely and / or partially powered by internal combustion engines.
Partikelfilter weisen einen höheren Filtrationswirkungsgrad auf, wenn der Filter mit Ruß und/oder Asche beladen ist. Insbesondere für neue Partikelfilter, welche keine und/oder eine geringe Aschebeladung aufweisen, kann sich daher das Problem ergeben, dass die Filterwirkung des Partikelfilters nicht ausreicht, um gesetzliche Bestimmungen zur Abgasreinheit zu erfüllen.Particulate filters have a higher filtration efficiency when the filter is loaded with soot and / or ash. In particular, for new particulate filters, which have no and / or a low ash charge, therefore, the problem may arise that the filter effect of the particulate filter is not sufficient to meet legal requirements for exhaust gas purity.
Insbesondere für diese Fälle ermöglicht die erfindungsgemäße serielle Anordnung von zwei Partikelfiltern eine Erhöhung der Filterleistung des Abgasnachbehandlungssystems, da das Abgas beide Partikelfilter nacheinander durchströmt. Dies führt zu einer weiteren Filtration im zweiten Partikelfilter derjenigen Partikel, die den ersten Filter passieren konnten. Im Gegensatz zu einer Abgasnachbehandlungsanlage, die nur einen Partikelfilter aufweist, wird dadurch der Filtrationswirkungsgrad erhöht. Dadurch werden eine Erhöhung der Reinheit des Abgases und die Einhaltung gesetzlicher Bestimmungen zur Abgasreinheit ermöglicht.In particular, for these cases, the inventive serial arrangement of two particulate filters allows an increase in the filter performance of the exhaust aftertreatment system, since the exhaust gas flows through both particulate filter in succession. This leads to a further filtration in the second particle filter of those particles that could pass through the first filter. In contrast to an exhaust aftertreatment system, which has only one particle filter, thereby the filtration efficiency is increased. As a result, an increase in the purity of the exhaust gas and compliance with legal provisions for exhaust gas purity are made possible.
In einer bevorzugten Ausführungsform umfasst das Abgasnachbehandlungssystem einen Hauptabgasstrom, einen Bypassstrom, einen Entnahmebereich, einen Aufnahmebereich und ein Ventil. Dabei ist der Entnahmebereich stromaufwärts des Aufnahmebereichs angeordnet, und der Bypassstrom ist stromabwärts des Entnahmebereich, stromaufwärts des Aufnahmebereichs und parallel zum Hauptabgasstrom angeordnet. Zudem sind der Hauptabgasstrom und der Bypassstrom über den Entnahmebereich und den Aufnahmebereich fluidverbunden. Das Ventil ist geeignet, den Abgasmassenstrom hauptsächlich durch den Hauptabgasstrom zu leiten sowie bei anderen Ventilstellungen mindestens einen Teilstrom des Abgases aus dem Hauptabgasstrom in den Bypassstrom zu leiten.In a preferred embodiment, the exhaust aftertreatment system includes a main exhaust stream, a bypass stream, a removal region, a receiving region, and a valve. In this case, the removal region is arranged upstream of the receiving region, and the bypass flow is arranged downstream of the removal region, upstream of the receiving region and parallel to the main exhaust gas stream. In addition, the main exhaust stream and the bypass stream are fluidly connected via the removal area and the receiving area. The valve is adapted to direct the exhaust gas mass flow mainly through the main exhaust gas flow and to direct at least a partial flow of the exhaust gas from the main exhaust gas flow into the bypass flow at other valve positions.
Das erfindungsgemäße Abgasnachbehandlungssystem ermöglicht dem Abgas die Umgehung des zweiten Partikelfilters beispielsweise in Fällen, die denen die Filterwirkung des ersten Partikelfilters ausreicht, um gesetzliche Bestimmungen zur Abgasreinheit einzuhalten. Dies ermöglicht einen geringen Kraftstoffverbrauch während des Betriebs des Verbrennungsmotors und damit Erhöhung der Effizienz des Fahrzeugs während des Betriebs gegenüber dem Fall, dass beide Partikelfilter von Abgas durchströmt werden.The exhaust aftertreatment system according to the invention allows the exhaust gas bypassing the second particulate filter, for example, in cases where the filter effect of the first particulate filter is sufficient to comply with legal requirements for exhaust gas purity. This allows low fuel consumption during operation of the internal combustion engine and thus increase the efficiency of the vehicle during operation compared to the case that exhaust gas flows through both particulate filters.
Die abhängigen Ansprüche beschreiben weitere vorteilhafte Ausführungsformen der Erfindung.The dependent claims describe further advantageous embodiments of the invention.
Bevorzugte Ausführungsbeispiele werden anhand der folgenden Figur näher erläutert.Preferred embodiments will be explained in more detail with reference to the following figure.
In diesem Aufführungsbeispiel ist der erste Partikelfilter
Zudem umfasst das Abgasnachbehandlungssystem
Zudem ist der Entnahmebereich
Das Abgas wird so in jedem Fall durch den ersten Partikelfilter
Zudem ist der Entnahmebereich
Dadurch kann Abgas, bei entsprechender Stellung des Ventils
Zudem ist der zweite Partikelfilter
Der erste Partikelfilter
Zudem umfasst das Abgasnachbehandlungssystem
Zudem ist das Steuergerät eingerichtet, für geringere ermittelte Aschebeladungen des ersten Partikelfilters
Insbesondere ist das Steuergerät eingerichtet für eine ermittelte Aschebeladung des ersten Partikelfilters
Dies erlaubt die bedarfsmäßige Zuschaltung des zweiten Partikelfilters
Zudem ist das Steuergerät eingerichtet zur Ermittlung eines aktuellen Standorts des Verbrennungsmotors
In diesem Ausführungsbeispiel ist der aktuelle Standort des Verbrennungsmotors
So ist beispielsweise auch eine Information umfasst, ob sich das Fahrzeug innerhalb einer Stadt oder auf einer Autobahn befindet. Dies ist relevant, da beispielsweise bei Fahrten innerhalb von Städten größere Partikelemissionen des Verbrennungsmotors
Der so ermittelte Standort wird dann dem Steuergerät zur Verfügung gestellt. So kann beispielsweise bei Stadtfahren der Teilstrom vergrößert werden, der in den Bypassstrom
Zudem ist das Steuergerät eingerichtet zur Ermittlung einer aktuellen Partikelemission des Verbbrennungsmotors
Die aktuelle Partikelemission wird über einen Sensor und/oder anhand eines Rechenmodells ermittelt. Das Rechenmodell berücksichtigt dabei die Drehzahl und das erzeugte Drehmoment des Verbrennungsmotors
Dabei treten erhöhte Partikelemissionen des Verbrennungsmotors
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
- EP 1304152 B1 [0002]EP 1304152 B1 [0002]
Claims (11)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018122106.1 | 2018-09-11 | ||
DE102018122106.1A DE102018122106A1 (en) | 2018-09-11 | 2018-09-11 | aftertreatment system |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102019123757A1 true DE102019123757A1 (en) | 2019-10-24 |
Family
ID=63714956
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102018122106.1A Withdrawn DE102018122106A1 (en) | 2018-09-11 | 2018-09-11 | aftertreatment system |
DE102019123757.2A Pending DE102019123757A1 (en) | 2018-09-11 | 2019-09-05 | Aftertreatment system Aftertreatment system |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102018122106.1A Withdrawn DE102018122106A1 (en) | 2018-09-11 | 2018-09-11 | aftertreatment system |
Country Status (1)
Country | Link |
---|---|
DE (2) | DE102018122106A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114961926B (en) * | 2022-05-31 | 2024-04-16 | 潍柴动力股份有限公司 | Aftertreatment system and control method for aftertreatment system |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1304152A1 (en) | 2001-10-19 | 2003-04-23 | J. Eberspächer GmbH & Co. KG | Exhaust system with particle filter for an internal combustion engine |
-
2018
- 2018-09-11 DE DE102018122106.1A patent/DE102018122106A1/en not_active Withdrawn
-
2019
- 2019-09-05 DE DE102019123757.2A patent/DE102019123757A1/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1304152A1 (en) | 2001-10-19 | 2003-04-23 | J. Eberspächer GmbH & Co. KG | Exhaust system with particle filter for an internal combustion engine |
Also Published As
Publication number | Publication date |
---|---|
DE102018122106A1 (en) | 2018-10-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE102012219960B4 (en) | Motor vehicle on-board diagnostics to distinguish quality loss from tampering | |
DE102017124057A1 (en) | METHOD AND SYSTEM FOR EXHAUST HEAT EXCHANGE DIAGNOSIS | |
DE102014114313B4 (en) | Internal combustion engine cooling system | |
DE102011056460A1 (en) | LOW PRESSURE EXHAUST GAS RECYCLING (EGR) SYSTEM AND METHOD FOR CHECKING THE EFFICACY OF LOW PRESSURE EGR COOLER | |
DE112007000779T5 (en) | Control system and control method for estimating turbocharger performance | |
DE102008002366A1 (en) | Exhaust gas purification device for a lean-burn internal combustion engine | |
DE102008054341A1 (en) | Method and system for determining the efficiency of a diesel oxidation catalyst | |
DE102010041982A1 (en) | Exhaust gas recirculation filter, internal combustion engine | |
DE102009014277A1 (en) | Operational equipment for turbocharged diesel engine, includes diesel particle filter in high pressure exhaust recycle line operated by diverter valve | |
DE102018104605A1 (en) | Low pressure EGR system with turbo bypass | |
DE102017218837A1 (en) | Internal combustion engine with an exhaust system | |
DE102008057572B4 (en) | Exhaust system for an internal combustion engine | |
DE102018220824A1 (en) | FORCED REGULATION SYSTEM OF A GASOLINE PARTICLE FILTER | |
DE102018104599A1 (en) | Low pressure EGR system with turbo bypass | |
DE102008035553A1 (en) | Internal combustion engine has exhaust gas reconducting mechanism with four valves, where exhaust gas turbocharger is provided with compressor arranged in intake section | |
DE112017000324T5 (en) | An engine system lubricated by a lubricating oil that forms ammonia-soluble ashes upon combustion and a vehicle including such an engine system | |
DE102019123757A1 (en) | Aftertreatment system Aftertreatment system | |
DE112017000321T5 (en) | Use of a lubricating oil that forms water-soluble ashes in combustion, engine system in which the oil is used, and a vehicle that includes the engine system | |
DE112017000323T5 (en) | engine system | |
DE102005008638A1 (en) | Particle filter arrangement for diesel engine has first filter part and second filter part whereby between two filter parts one mechanism is arranged for withdrawal of portion of exhaust gas which can be recycled | |
DE102010063694A1 (en) | Arrangement for supplying gaseous medium e.g. fresh air, into e.g. exhaust line, of e.g. air supply system, of internal combustion engine of motor vehicle, has microporous membrane for separation of condensate from gaseous medium | |
DE102017218838A1 (en) | Internal combustion engine with an exhaust system | |
DE102009028617A1 (en) | Method for determining exhaust gas mass flow into exhaust pipe of combustion engine of motor vehicle, involves determining fresh air mass flow, measured before compressor, by air mass sensor | |
DE102017204772B4 (en) | Low pressure exhaust gas recirculation system | |
DE102019202943A1 (en) | Method for operating an SCR catalytic converter with a bypass flow channel |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
R084 | Declaration of willingness to licence | ||
R230 | Request for early publication |