DE102012008539A1 - Exhaust system for use in motor car, has by-pass line for bypassing catalytically active material at discharge side and passed through region of exhaust gas treatment device, and switching flap arranged on treatment device - Google Patents
Exhaust system for use in motor car, has by-pass line for bypassing catalytically active material at discharge side and passed through region of exhaust gas treatment device, and switching flap arranged on treatment device Download PDFInfo
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- DE102012008539A1 DE102012008539A1 DE102012008539A DE102012008539A DE102012008539A1 DE 102012008539 A1 DE102012008539 A1 DE 102012008539A1 DE 102012008539 A DE102012008539 A DE 102012008539A DE 102012008539 A DE102012008539 A DE 102012008539A DE 102012008539 A1 DE102012008539 A1 DE 102012008539A1
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- Prior art keywords
- exhaust
- exhaust gas
- aftertreatment device
- treatment device
- active material
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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
- F01N3/10—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
- F01N3/2053—By-passing catalytic reactors, e.g. to prevent overheating
-
- 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
- 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
- F01N3/033—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 in combination with other devices
- F01N3/035—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 in combination with other devices with catalytic reactors, e.g. catalysed diesel particulate 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
- F01N3/10—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
- F01N3/103—Oxidation catalysts for HC and CO only
-
- 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]
-
- 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
- F01N3/28—Construction of catalytic reactors
- F01N3/2892—Exhaust flow directors or the like, e.g. upstream of catalytic device
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
-
- 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)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Materials Engineering (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
Description
Die Erfindung betrifft eine Abgasanlage für ein Fahrzeug, welche eine erste Abgasnachbehandlungseinrichtung umfasst, wobei stromabwärts der ersten Abgasnachbehandlungseinrichtung eine zweite Abgasnachbehandlungseinrichtung angeordnet ist. Hierbei ist eine Umgehungsleitung vorgesehen, mittels welcher katalytisch aktives Material der zweiten Abgasnachbehandlungseinrichtung umgangen werden kann. Des Weiteren betrifft die Erfindung ein Verfahren zum Betreiben einer solchen Abgasanlage.The invention relates to an exhaust system for a vehicle, which comprises a first exhaust gas aftertreatment device, wherein a second exhaust gas aftertreatment device is arranged downstream of the first exhaust aftertreatment device. Here, a bypass line is provided, by means of which catalytically active material of the second exhaust gas aftertreatment device can be bypassed. Furthermore, the invention relates to a method for operating such an exhaust system.
Die
Aufgabe der vorliegenden Erfindung ist es, eine Abgasanlage der eingangs genannten Art sowie ein Verfahren zum Betreiben einer solchen Abgasanlage zu schaffen, mittels welcher beziehungsweise mittels welchem sich ein verbesserter Betrieb der zweiten Abgasnachbehandlungseinrichtung erreichen lässt.Object of the present invention is to provide an exhaust system of the type mentioned above and a method for operating such an exhaust system, by means of which or by means of which an improved operation of the second exhaust aftertreatment device can be achieved.
Diese Aufgabe wird durch eine Abgasanlage mit den Merkmalen des Patentanspruchs 1 und durch ein Verfahren mit den Merkmalen des Patentanspruchs 8 gelöst. Vorteilhafte Ausgestaltungen mit zweckmäßigen Weiterbildungen der Erfindung sind in den abhängigen Patentansprüchen angegeben.This object is achieved by an exhaust system having the features of patent claim 1 and by a method having the features of patent claim 8. Advantageous embodiments with expedient developments of the invention are specified in the dependent claims.
Bei der erfindungsgemäßen Abgasanlage ist die Umgehungsleitung zumindest durch einen Bereich der zweiten Abgasnachbehandlungseinrichtung hindurchgeführt. Dies bewirkt, dass beim Nutzen der Umgehungsleitung das Abgas zwar von dem katalytisch aktiven Material der zweiten Abgasnachbehandlungseinrichtung ferngehalten ist. Dennoch wird durch den Abgasstrom, welcher durch die Umgehungsleitung hindurchtritt, die zweite Abgasnachbehandlungseinrichtung beheizt. Durch dieses Beheizen der zweiten Abgasnachbehandlungseinrichtung wird sichergestellt, dass diese besonders rasch wieder ihre zum Umwandeln von Abgasbestandteilen geeignete Temperatur erreicht, wenn nach einem Umgehen des katalytisch aktiven Materials wieder Abgas durch die zweite Abgasnachbehandlungseinrichtung durchgeleitet wird, welches mit dem katalytisch aktiven Material in Kontakt kommt.In the exhaust gas system according to the invention, the bypass line is led through at least a region of the second exhaust gas aftertreatment device. This causes the exhaust gas is indeed kept away from the catalytically active material of the second exhaust aftertreatment device when using the bypass line. Nevertheless, the second exhaust aftertreatment device is heated by the exhaust gas flow, which passes through the bypass line. By means of this heating of the second exhaust gas aftertreatment device, it is ensured that it returns to its temperature suitable for converting exhaust gas constituents particularly quickly if, after bypassing the catalytically active material, exhaust gas is again passed through the second exhaust gas aftertreatment device, which comes into contact with the catalytically active material.
Würde hingegen das Abgas unter Umgehung der gesamten zweiten Abgasnachbehandlungseinrichtung an dieser vorbeigeleitet, so kann während dieses Vorbeileitens die zweite Abgasnachbehandlungseinrichtung vergleichsweise stark abkühlen, sodass sie anschließend erst allmählich wieder ihre Anspringtemperatur erreicht. Das Beheizen der zweiten Abgasnachbehandlungseinrichtung verhindert ein solches Auskühlen, so dass ein verbesserter, eine besonders hohe Umsetzung von Abgasbestandteilen mit sich bringender Betrieb der zweiten Abgasnachbehandlungseinrichtung möglicht ist.If, on the other hand, the exhaust gas bypasses the entire second exhaust gas aftertreatment device, then the second exhaust gas aftertreatment device can cool down comparatively strongly during this bypass, so that it subsequently only gradually reaches its light-off temperature. The heating of the second exhaust gas aftertreatment device prevents such a cooling, so that an improved, a particularly high conversion of exhaust gas constituents entailing operation of the second exhaust gas aftertreatment device is made possible.
In einer vorteilhaften Ausgestaltung der Erfindung ist die Umgehungsleitung als Rohr ausgebildet, welches auf einer Einlassseite in ein das katalytisch aktive Material umschließendes Gehäuse der zweiten Abgasnachbehandlungseinrichtung hineingeführt und an einer Auslassseite aus dem Gehäuse herausgeführt ist. So durchzieht das Rohr das Gehäuse vollständig, und die beim Durchströmen des Rohrs abgegebene Wärme des Abgases kann besonders weitgehend zum Beheizen der zweiten Abgasnachbehandlungseinrichtung genutzt werden.In an advantageous embodiment of the invention, the bypass line is designed as a tube, which is guided on an inlet side into a housing enclosing the catalytically active material of the second exhaust gas aftertreatment device and led out of the housing at an outlet side. Thus, the tube passes completely through the housing, and the heat of the exhaust gas emitted as it flows through the tube can be used to a great extent for heating the second exhaust gas aftertreatment device.
Besonders einfach lässt sich die Beaufschlagung der Umgehungsleitung oder des katalytisch aktiven Materials der zweiten Abgasnachbehandlungseinrichtung einstellen, wenn eine zum Versperren oder Freigeben der Umgehungsleitung ausgebildete Verstelleinrichtung ausschließlich stromaufwärts der zweiten Abgasnachbehandlungseinrichtung angeordnet ist. Eine solche Verstelleinrichtung kann insbesondere als einfache Umschaltklappe ausgebildet sein, welche entweder die Umgehungsleitung vollständig versperrt oder die Umgehungsleitung vollständig freigibt.The admission of the bypass line or of the catalytically active material of the second exhaust gas aftertreatment device can be adjusted particularly easily if an adjusting device designed to block or release the bypass line is arranged exclusively upstream of the second exhaust gas aftertreatment device. Such an adjusting device can in particular be designed as a simple reversing flap which either completely blocks the bypass line or completely releases the bypass line.
Bevorzugt ist die Verstelleinrichtung in Abhängigkeit von einer Temperatur ansteuerbar. So kann sichergestellt werden, dass die Umgehungsleitung dann genutzt wird, wenn andernfalls aufgrund einer zu hohen Temperatur des Abgases mit einer zu hohen thermischen Belastung oder Schädigung des katalytisch aktiven Materials der zweiten Abgasnachbehandlungseinrichtung zu rechnen wäre. Als Temperatur kann hierbei insbesondere mittels eines Temperatursensors die Temperatur der ersten Abgasnachbehandlungseinrichtung erfasst werden.Preferably, the adjusting device is controllable in dependence on a temperature. Thus it can be ensured that the bypass line is then used, if otherwise would be due to excessive temperature of the exhaust gas with too high thermal load or damage to the catalytically active material of the second exhaust aftertreatment device would be expected. As temperature, in this case, in particular by means of a Temperature sensor, the temperature of the first exhaust aftertreatment device are detected.
Besonders vorteilhaft lässt sich die Umgehungsleitung nutzen, wenn gemäß einer weiteren vorteilhaften Ausgestaltung der Erfindung die erste Abgasnachbehandlungseinrichtung einen Partikelfilter und/oder einen Oxidationskatalysator umfasst, während die zweite Abgasnachbehandlungseinrichtung als SCR-Katalysator ausgebildet ist. Dann kann nämlich das katalytisch aktive Material des SCR-Katalysators umgangen und so vor einer Beaufschlagung mit heißem Abgas geschützt werden, wenn der Partikelfilter regeneriert wird, wenn also in diesem vorhandene Rußpartikel abgebrannt werden. Dies gilt auch, wenn der Oxidationskatalysator mit einer vergleichsweise hohen Temperatur betrieben wird.The bypass line can be used particularly advantageously if, according to a further advantageous embodiment of the invention, the first exhaust gas aftertreatment device comprises a particle filter and / or an oxidation catalytic converter, while the second exhaust gas aftertreatment device is designed as an SCR catalytic converter. Then, namely, the catalytically active material of the SCR catalyst can be bypassed and thus protected from exposure to hot exhaust gas when the particulate filter is regenerated, so if there are burned in this existing soot particles. This also applies if the oxidation catalyst is operated at a comparatively high temperature.
Es können hierbei insbesondere für das Regenerieren besonders hohe Temperaturen eingestellt werden, sodass die zum Regenerieren des Partikelfilters notwendige Zeitdauer besonders kurz gehalten werden kann. Wenn zum Regenerieren des Partikelfilters Kraftstoff in einen dem Partikelfilter vorgeschalteten Verbrennungsmotor eingebracht wird, welcher den Verbrennungsmotor unverbrannt verlässt, so führt das Regenerieren auch zu einer unerwünschten Verdünnung des Motoröls mit Kraftstoff. Eine solche Verdünnung des Motoröls kann ebenso besonders weitgehend vermieden werden, wenn die zum Regenerieren des Partikelfilters notwendige Zeitdauer vergleichsweise kurz ist.Particularly high temperatures can be set here, in particular for regeneration, so that the time required to regenerate the particle filter can be kept particularly short. If, for regeneration of the particulate filter, fuel is introduced into an internal combustion engine upstream of the particulate filter, which leaves the combustion engine unburnt, regeneration also leads to undesirable dilution of the engine oil with fuel. Such a dilution of the engine oil can also be largely avoided if the time required to regenerate the particulate filter is comparatively short.
Des Weiteren wird der SCR-Katalysator trotz der beim Regenerieren des Partikelfilters eingestellten hohen Temperaturen geschützt, ohne dass ein Zudosieren einer Reduktionsmittellösung wie beispielsweise einer wässrigen Harnstofflösung in den SCR-Katalysator zu Kühlzwecken notwendig wäre.Furthermore, despite the high temperatures set during regeneration of the particulate filter, the SCR catalyst is protected without the need for dosing a reducing agent solution, such as an aqueous urea solution, into the SCR catalyst for cooling purposes.
Bei dem erfindungsgemäßen Verfahren zum Betreiben einer Abgasanlage für ein Fahrzeug wird Abgas durch eine erste Abgasnachbehandlungseinrichtung geleitet, welche stromaufwärts einer zweiten Abgasnachbehandlungseinrichtung angeordnet ist. Katalytisch aktives Material der zweiten Abgasnachbehandlungseinrichtung wird umgangen, indem das Abgas durch eine Umgehungsleitung geleitet wird. Hierbei durchströmt das Abgas die Umgehungsleitung, und es wird dabei zumindest bereichsweise durch die zweite Abgasnachbehandlungseinrichtung hindurchgeführt.In the method according to the invention for operating an exhaust system for a vehicle, exhaust gas is passed through a first exhaust gas aftertreatment device, which is arranged upstream of a second exhaust gas aftertreatment device. Catalytically active material of the second exhaust aftertreatment device is bypassed by the exhaust gas is passed through a bypass line. Here, the exhaust gas flows through the bypass line, and it is at least partially passed through the second exhaust aftertreatment device.
Die für die erfindungsgemäße Abgasanlage beschriebenen Vorteile und bevorzugten Ausführungsformen gelten auch für das erfindungsgemäße Verfahren.The advantages and preferred embodiments described for the exhaust system according to the invention also apply to the method according to the invention.
Die vorstehend in der Beschreibung genannten Merkmale und Merkmalskombinationen sowie die nachfolgend in der Figurenbeschreibung genannten und/oder in der 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.The features and feature combinations mentioned above in the description as well as the features and feature combinations mentioned below in the figure description and / or shown alone in the figure can be used not only in the respectively specified combination but also in other combinations or alone, without the scope of To leave invention.
Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus den Ansprüchen, der nachfolgenden Beschreibung bevorzugter Ausführungsformen sowie anhand der Zeichnung.Further advantages, features and details of the invention will become apparent from the claims, the following description of preferred embodiments and from the drawing.
Diese zeigt schematisch eine Abgasanlage eines Kraftfahrzeugs, bei welcher stromabwärts eines Partikelfilters ein SCR-Katalysator angeordnet ist, wobei eine Bypassleitung durch ein Gehäuse des SCR-Katalysators hindurchgeführt ist.This shows schematically an exhaust system of a motor vehicle, in which downstream of a particulate filter, an SCR catalyst is arranged, wherein a bypass line is passed through a housing of the SCR catalyst.
Eine in der Figur schematisch gezeigte Abgasanlage
Stromabwärts des Partikelfilters
Um den Partikelfilter
Um dies zu vermeiden, ist vorliegend eine Umgehungsleitung oder Bypassleitung
Das die Bypassleitung
Vorliegend wird die Bypassleitung
Wenn das Abgas die Bypassleitung
Durch das Vorsehen der Bypassleitung
Auch wenn eine Abgasrückführung, insbesondere eine Mehrwege-Abgasrückführung vorgesehen ist, kann die Abgasanlage
Ein Defekt des Partikelfilters
Die Ansteuerung der Umschaltklappe
Im Gegensatz zur Ausbildung einer Abgasanlage, bei welcher stromaufwärts des Partikelfilters
Auch die Funktionalitäten eines den Verbrennungsmotor
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 1722078 A1 [0002] EP 1722078 A1 [0002]
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE102012008539A DE102012008539A1 (en) | 2012-04-27 | 2012-04-27 | Exhaust system for use in motor car, has by-pass line for bypassing catalytically active material at discharge side and passed through region of exhaust gas treatment device, and switching flap arranged on treatment device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE102012008539A DE102012008539A1 (en) | 2012-04-27 | 2012-04-27 | Exhaust system for use in motor car, has by-pass line for bypassing catalytically active material at discharge side and passed through region of exhaust gas treatment device, and switching flap arranged on treatment device |
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Publication Number | Publication Date |
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DE102012008539A1 true DE102012008539A1 (en) | 2012-10-11 |
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DE102012008539A Withdrawn DE102012008539A1 (en) | 2012-04-27 | 2012-04-27 | Exhaust system for use in motor car, has by-pass line for bypassing catalytically active material at discharge side and passed through region of exhaust gas treatment device, and switching flap arranged on treatment device |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015086727A (en) * | 2013-10-28 | 2015-05-07 | ヤンマー株式会社 | Exhaust emission control system for ship |
JP2015086726A (en) * | 2013-10-28 | 2015-05-07 | ヤンマー株式会社 | Exhaust emission control system and ship equipped with the same |
CN105683519A (en) * | 2013-10-28 | 2016-06-15 | 洋马株式会社 | Exhaust gas purification system and ship using same |
CN107965370A (en) * | 2017-11-02 | 2018-04-27 | 李鹏飞 | A kind of environment-friendly type cigarette exhaust backflash energy-saving device |
CN107787397B (en) * | 2015-06-18 | 2020-03-03 | 现代重工业株式会社 | Low-voltage SCR system and control method thereof |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1722078A1 (en) | 2004-03-02 | 2006-11-15 | Nissan Diesel Motor Co., Ltd. | Device for purifying exhaust gas of internal combustion engine and method for purifying exhaust gas |
-
2012
- 2012-04-27 DE DE102012008539A patent/DE102012008539A1/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1722078A1 (en) | 2004-03-02 | 2006-11-15 | Nissan Diesel Motor Co., Ltd. | Device for purifying exhaust gas of internal combustion engine and method for purifying exhaust gas |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015086727A (en) * | 2013-10-28 | 2015-05-07 | ヤンマー株式会社 | Exhaust emission control system for ship |
JP2015086726A (en) * | 2013-10-28 | 2015-05-07 | ヤンマー株式会社 | Exhaust emission control system and ship equipped with the same |
CN105683519A (en) * | 2013-10-28 | 2016-06-15 | 洋马株式会社 | Exhaust gas purification system and ship using same |
EP3064725A4 (en) * | 2013-10-28 | 2017-08-02 | Yanmar Co., Ltd. | Exhaust gas purification system and ship using same |
CN105683519B (en) * | 2013-10-28 | 2018-05-15 | 洋马株式会社 | Exhaust gas purifying system and the ship for possessing it |
US10443469B2 (en) | 2013-10-28 | 2019-10-15 | Yanmar Co., Ltd. | Exhaust gas purification system and ship having the same |
CN107787397B (en) * | 2015-06-18 | 2020-03-03 | 现代重工业株式会社 | Low-voltage SCR system and control method thereof |
CN107965370A (en) * | 2017-11-02 | 2018-04-27 | 李鹏飞 | A kind of environment-friendly type cigarette exhaust backflash energy-saving device |
CN107965370B (en) * | 2017-11-02 | 2020-11-03 | 江苏绿能汽配科技有限公司 | Environment-friendly smoke tail gas backflash economizer |
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