DE102011018569A1 - Exhaust system for use in combustion engine of motor car, has metering valve injecting reducing agent in passage portion arranged in baffle unit, where baffle unit comprises impact surfaces that are bent in main flow direction of gas stream - Google Patents
Exhaust system for use in combustion engine of motor car, has metering valve injecting reducing agent in passage portion arranged in baffle unit, where baffle unit comprises impact surfaces that are bent in main flow direction of gas stream Download PDFInfo
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- DE102011018569A1 DE102011018569A1 DE102011018569A DE102011018569A DE102011018569A1 DE 102011018569 A1 DE102011018569 A1 DE 102011018569A1 DE 102011018569 A DE102011018569 A DE 102011018569A DE 102011018569 A DE102011018569 A DE 102011018569A DE 102011018569 A1 DE102011018569 A1 DE 102011018569A1
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- exhaust system
- exhaust gas
- exhaust
- reducing agent
- baffle
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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
- F01N3/2066—Selective catalytic reduction [SCR]
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/21—Mixing gases with liquids by introducing liquids into gaseous media
- B01F23/213—Mixing gases with liquids by introducing liquids into gaseous media by spraying or atomising of the liquids
- B01F23/2132—Mixing gases with liquids by introducing liquids into gaseous media by spraying or atomising of the liquids using nozzles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/20—Jet mixers, i.e. mixers using high-speed fluid streams
- B01F25/25—Mixing by jets impinging against collision plates
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/314—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit
- B01F25/3141—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit with additional mixing means other than injector mixers
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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
- F01N2240/20—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 flow director or deflector
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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
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
-
- 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
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/14—Arrangements for the supply of substances, e.g. conduits
- F01N2610/1453—Sprayers or atomisers; Arrangement thereof in the exhaust 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
- 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
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
Description
Die Erfindung betrifft eine Abgasanlage mit einem Dosierventil zum seitlichen Einspritzen eines Reduktionsmittels in einen Abgasstrom gemäß Oberbegriff des Anspruchs 1.The invention relates to an exhaust system with a metering valve for the lateral injection of a reducing agent into an exhaust gas stream according to the preamble of claim 1.
Zur Reduktion von Stickoxiden im Abgas von mit Dieselkraftstoff betriebenen Verbrennungsmotoren ist es bekannt, die Stickoxide mittels einer so genannten selektiven katalytischen Reduktion (SCR) zu reduzieren. Hierzu wird dem Abgasstrom zum Beispiel eine wässrige Harnstofflösung über ein Dosierventil zudosiert. Dabei verdampft der Wasseranteil im Abgasstrom und der verbleibende Harnstoff wird zu Isocyansäure und Ammoniak thermolysiert. Die verbliebene Isocyansäure wird in einem nächsten Schritt zu Ammoniak und Kohlendioxid hydrolisiert. Alle diese Schritte erfordern eine gewisse Zeit und es muss sichergestellt werden, dass das erzeugte Ammoniak über den Strömungsquerschnitt des Abgaskanals und anschließend am Eintritt des SCR-Katalysators oder eines mit SCR-Beschichtung versehenen Partikelfilters gleichmäßig verteilt ist. Um eine optimale Gleichverteilung zu erhalten, muss beim Stand der Technik eine ausreichend lange Mischstrecke vom Dosierventil bis zum Eintritt des SCR-Katalysators eingehalten werden. Die Mischstrecke herkömmlicher Systeme hat eine Länge von mehr als 25 cm, weshalb aufgrund der erforderlichen Länge eine motornahe Anordnung bei herkömmlichen Systemen nicht möglich ist. Herkömmliche SCR-Systeme werden daher im Unterbodenbereich des Fahrzeugs, also motorfern, angeordnet, was zur Folge hat, dass durch die motorferne Anordnung das Abgastemperaturniveau entsprechend niedrig ist. Das niedrige Abgastemperaturniveau wirkt sich dabei negativ auf die Katalyse im SCR-System aus.For the reduction of nitrogen oxides in the exhaust gas of diesel-fueled internal combustion engines, it is known to reduce the nitrogen oxides by means of a so-called selective catalytic reduction (SCR). For this purpose, for example, an aqueous urea solution is added to the exhaust gas flow via a metering valve. The proportion of water in the exhaust gas stream evaporates and the remaining urea is thermolyzed to form isocyanic acid and ammonia. The remaining isocyanic acid is hydrolyzed in a next step to ammonia and carbon dioxide. All these steps require a certain amount of time and it must be ensured that the generated ammonia is evenly distributed over the flow cross-section of the exhaust gas channel and then at the inlet of the SCR catalytic converter or an SCR-coated particulate filter. In order to obtain an optimal uniform distribution, in the prior art a sufficiently long mixing distance from the metering valve to the entry of the SCR catalyst must be maintained. The mixing section of conventional systems has a length of more than 25 cm, which is why a close-coupled arrangement is not possible in conventional systems due to the required length. Conventional SCR systems are therefore arranged in the underbody area of the vehicle, that is to say remote from the engine, with the result that the exhaust-gas temperature level is correspondingly low due to the arrangement remote from the engine. The low exhaust gas temperature level has a negative effect on the catalysis in the SCR system.
Aus der
Die Aufgabe der Erfindung besteht darin, eine Abgasanlage für ein Fahrzeug bereitzustellen, bei der die Einspritzung eines Reduktionsmittels in den Abgasstrom so erfolgt, dass eine möglichst kurze Mischstrecke für eine gute Gleichverteilung des Reduktionsmittels im Abgasstrom ausreicht.The object of the invention is to provide an exhaust system for a vehicle in which the injection of a reducing agent into the exhaust gas flow takes place so that the shortest possible mixing section is sufficient for a good uniform distribution of the reducing agent in the exhaust gas flow.
Die Lösung dieser Aufgabe erhält man durch die im Patentanspruch 1 angegebenen Merkmale. Bevorzugte Weiterbildungen der Erfindung sind in den Unteransprüchen offenbart.The solution to this problem is obtained by the features specified in claim 1. Preferred embodiments of the invention are disclosed in the subclaims.
Erfindungsgemäß wird das Reduktionsmittel über ein seitlich an einem Abgaskanalabschnitt angeordnetes Dosierventils auf eine im Abgaskanalabschnitt angeordnete Prallvorrichtung eingespritzt. Die Prallvorrichtung verhindert einerseits, dass eine als Reduktionsmittel vorzugsweise im rechten Winkel zum Abgasstrom eingespritzte wässrige Harnstofflösung auf die dem Dosierventil gegenüberliegende Innenwand des Abgaskanalabschnitts auftrifft, und sorgt insbesondere für eine deutliche Verbesserung der Durchmischung des Harnstoffs im Abgasstrom. Die Prallfläche bzw. die Prallflächen der Prallvorrichtung können dabei so zum Abgasstrom geneigt ausgerichtet sein, dass die auftreffende wässrige Harnstofflösung in gewünschter Weise möglichst gleichmäßig verteilt in den Abgasstrom von der Prallvorrichtung abprallt. Selbst wenn die Prallvorrichtung als einfache ebene oder gewölbte Prallplatte ausgebildet ist, ergibt sich schon dadurch die Möglichkeit, die Mischstrecke bzw. die Länge des Abgaskanalabschnitts bis zum nachfolgenden Katalysator gegenüber herkömmlichen Ausführungen deutlich zu verringern, da der Pralleffekt an der Prallvorrichtung die Durchmischung des Harnstoffs im Abgasstrom verbessert.According to the invention, the reducing agent is injected via a metering valve arranged laterally on an exhaust gas duct section onto a baffle device arranged in the exhaust gas duct section. On the one hand, the baffle device prevents an aqueous urea solution, which is injected as a reducing agent preferably at right angles to the exhaust gas flow, from impinging on the inner wall of the exhaust gas duct section opposite the dosing valve, and in particular ensures a marked improvement in the mixing of the urea in the exhaust gas flow. The baffle surface or the baffles of the baffle device can be aligned inclined to the exhaust stream that rebounds the impinging aqueous urea solution in the desired manner evenly distributed as possible in the exhaust stream from the baffle. Even if the baffle device is designed as a simple planar or curved baffle plate, this already results in the possibility of significantly reducing the mixing distance or the length of the exhaust gas duct section to the subsequent catalyst compared to conventional designs, since the baffle effect on the baffle device causes the mixing of the urea in the Improved exhaust flow.
Durch die mögliche Verkürzung der Mischstrecke ergibt sich insgesamt eine kürzere Bauform für den Abgaskanalabschnitt, an dem das Dosierventil zur Platzersparnis vorzugsweise rechtwinklig seitlich absteht. Durch die kleinere Bauform lässt sich die gesamte Katalysatoranordnung motornah im Motorraum eines Kraftfahrzeugs unterbringen, so dass für die Katalyse höhere Abgastemperaturen zur Verfügung stehen.Due to the possible shortening of the mixing section, the overall result is a shorter design for the exhaust gas duct section, on which the metering valve preferably projects laterally at right angles in order to save space. Due to the smaller design, the entire catalyst assembly can be accommodated close to the engine in the engine compartment of a motor vehicle, so that higher exhaust gas temperatures are available for catalysis.
Die Prallvorrichtung kann eine oder mehrere Prallflächen haben, die zur Hauptströmungsrichtung des Abgasstroms derart geneigt ausgerichtet sind, dass die davon abprallende Harnstofflösung in etwa in Hauptströmungsrichtung des Abgasstroms abprallt, wobei die Neigung der Prallflächen so gewählt sein können, dass bereits unmittelbar nach dem Abprallen der Harnstofflösung eine sehr gute Gleichverteilung bzw. Durchmischung im Abgasstrom auftritt.The baffle device may have one or more baffles that are aligned inclined to the main flow direction of the exhaust gas flow, that bounces off the rebounding urea solution approximately in the main flow direction of the exhaust gas flow, wherein the inclination of the baffles may be selected so that immediately after the rebound of the urea solution a very good uniform distribution or mixing in the exhaust gas flow occurs.
Die Prallvorrichtung hat vorzugsweise im Abgasstrom eine deutlich kleinere wirksame Stirnfläche als die innere Querschnittsfläche des Abgaskanalabschnitts, in welchem die Prallvorrichtung angeordnet ist. Auf diese Weise kann der Abgasstrom die Prallvorrichtung umströmen, wobei die auftretenden Verwirbelungen an der Prallvorrichtung eine gute Gleichverteilung des Harnstoffs im Abgasstrom begünstigen können.The baffle device preferably has a significantly smaller effective end face in the exhaust gas flow than the inner cross-sectional surface of the exhaust gas passage section, in which the baffle device is arranged. In this way, the exhaust gas flow around the baffle device, wherein the turbulence occurring at the baffle device can promote a good uniform distribution of urea in the exhaust stream.
Eine bevorzugte Ausführungsform der Erfindung sieht vor, dass der Anstellwinkel der Prallvorrichtung verstellbar ist. Vorzugsweise erfolgt die Verstellung der Prallvorrichtung pneumatisch oder mittels eines elektrischen Stellantriebs um eine Achse, die quer zur Hauptrichtung des Abgasstroms ausgerichtet ist. Damit besteht die Möglichkeit, die Prallvorrichtung in Abhängigkeit von aktuellen Betriebsparametern des Verbrennungsmotors bzw. des Abgasstroms in der Neigung so zu verändern, dass eine optimale Funktionalität für das SCR-System erzielt wird. Insbesondere kann dadurch eine Optimierung der Gleichverteilung des Harnstoffs im Abgasstrom für unterschiedliche Strömungsgeschwindigkeiten erreicht werden. A preferred embodiment of the invention provides that the angle of attack of the baffle device is adjustable. Preferably, the adjustment of the impact device takes place pneumatically or by means of an electric actuator about an axis which is aligned transversely to the main direction of the exhaust gas flow. This makes it possible to change the impact device as a function of current operating parameters of the internal combustion engine or the exhaust gas flow in the inclination so that optimum functionality for the SCR system is achieved. In particular, an optimization of the uniform distribution of the urea in the exhaust gas flow for different flow velocities can thereby be achieved.
Die aus wenigstens einer Prallplatte bestehende Prallvorrichtung kann Durchbrechungen aufweisen, durch die ein Teil des Abgases hindurchströmen kann. Durch Größe, Form und Verteilung der Durchbrechungen in der oder den Prallflächen kann eine Änderung der Abprallwirkung und damit zum Beispiel eine Anpassung an unterschiedliche Motortypen vorgenommen werden. Auch durch eine Änderung der Außenränder der Prallvorrichtung kann eine Änderung des Strömungseinflusses und der damit verbundenen Verwirbelungen im Abgasstrom erreicht werden, wodurch ebenfalls eine Veränderung der Abprall- und Mischfunktion in gewünschter Weise erzielt werden kann.The baffle device consisting of at least one baffle plate can have openings through which a part of the exhaust gas can flow. By size, shape and distribution of the openings in the baffles or a change in the rebound effect and thus, for example, an adaptation to different engine types can be made. Also, by changing the outer edges of the baffle device, a change of the flow influence and the associated turbulence in the exhaust gas flow can be achieved, whereby also a change in the rebound and mixing function can be achieved in the desired manner.
Die erfindungsgemäße Abgasanlage ist vorzugsweise als System zur selektiven katalytischen Reduktion ausgebildet, welches einen SCR-Katalysator hat, dem der mit wässriger Harnstofflösung beaufschlagte Abgasstrom zugeführt wird, wobei die für die Beimischung des Reduktionsmittels wirksame Mischstrecke des Abgasstroms von der Prallvorrichtung bis zum nachfolgenden Katalysator vorzugsweise weniger als 20 cm beträgt.The exhaust system according to the invention is preferably designed as a system for selective catalytic reduction, which has an SCR catalyst, which is supplied to the treated with aqueous urea solution exhaust stream, wherein the effective for the admixture of the reducing agent mixing section of the exhaust stream from the impact device to the subsequent catalyst, preferably less than 20 cm.
In Versuchen konnte ein SCR-System realisiert werden, bei dem die wirksame Mischstrecke des Abgasstroms zwischen Dosierventil und nachfolgendem SCR-Katalysator nur 10 cm betragen hat, wobei gleichzeitig eine sehr gute Gleichverteilung des Harnstoffs im Abgasstrom erzielt werden konnte.In experiments, an SCR system could be realized in which the effective mixing section of the exhaust gas flow between metering valve and subsequent SCR catalyst was only 10 cm, at the same time a very good uniform distribution of urea could be achieved in the exhaust stream.
Die Erfindung wird nachfolgend anhand von in der Zeichnung dargestellten Ausführungsbeispielen näher erläutert.The invention will be explained in more detail with reference to embodiments shown in the drawing.
Es zeigen:Show it:
In
Anstelle eines SCR-Katalysators
In den Abgaskanalabschnitt
Die Prallvorrichtung
In
Die in
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 102008052757 A1 [0003] DE 102008052757 A1 [0003]
Claims (15)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE102011018569A DE102011018569A1 (en) | 2011-04-26 | 2011-04-26 | Exhaust system for use in combustion engine of motor car, has metering valve injecting reducing agent in passage portion arranged in baffle unit, where baffle unit comprises impact surfaces that are bent in main flow direction of gas stream |
Applications Claiming Priority (1)
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DE102011018569A DE102011018569A1 (en) | 2011-04-26 | 2011-04-26 | Exhaust system for use in combustion engine of motor car, has metering valve injecting reducing agent in passage portion arranged in baffle unit, where baffle unit comprises impact surfaces that are bent in main flow direction of gas stream |
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DE102011018569A1 true DE102011018569A1 (en) | 2012-10-31 |
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DE102011018569A Withdrawn DE102011018569A1 (en) | 2011-04-26 | 2011-04-26 | Exhaust system for use in combustion engine of motor car, has metering valve injecting reducing agent in passage portion arranged in baffle unit, where baffle unit comprises impact surfaces that are bent in main flow direction of gas stream |
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Cited By (6)
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WO2015071005A1 (en) * | 2013-11-15 | 2015-05-21 | Robert Bosch Gmbh | Injection module and exhaust system having an injection module |
WO2015185297A1 (en) * | 2014-06-04 | 2015-12-10 | Robert Bosch Gmbh | Injection module and exhaust system having an injection module |
DE102017209483A1 (en) | 2017-06-06 | 2018-07-12 | Audi Ag | Optimized exhaust gas purification |
WO2019034277A1 (en) * | 2017-08-14 | 2019-02-21 | Ruscheweyh Consult Gmbh | Exhaust gas system for a combustion engine, flange plate or bearing bush, exhaust manifold, vehicle and method for operating an exhaust gas system |
US10443587B2 (en) | 2013-06-28 | 2019-10-15 | Robert Bosch Gmbh | High-pressure fuel pump |
NL2022889B1 (en) * | 2019-04-08 | 2020-10-15 | Daf Trucks Nv | An arrangement for introducing a liquid medium into exhaust gases |
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Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10443587B2 (en) | 2013-06-28 | 2019-10-15 | Robert Bosch Gmbh | High-pressure fuel pump |
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CN105765189B (en) * | 2013-11-15 | 2019-10-25 | 罗伯特·博世有限公司 | Jet module and exhaust system with jet module |
WO2015185297A1 (en) * | 2014-06-04 | 2015-12-10 | Robert Bosch Gmbh | Injection module and exhaust system having an injection module |
CN106536882A (en) * | 2014-06-04 | 2017-03-22 | 罗伯特·博世有限公司 | Injection module and exhaust system having an injection module |
DE102017209483A1 (en) | 2017-06-06 | 2018-07-12 | Audi Ag | Optimized exhaust gas purification |
WO2019034277A1 (en) * | 2017-08-14 | 2019-02-21 | Ruscheweyh Consult Gmbh | Exhaust gas system for a combustion engine, flange plate or bearing bush, exhaust manifold, vehicle and method for operating an exhaust gas system |
NL2022889B1 (en) * | 2019-04-08 | 2020-10-15 | Daf Trucks Nv | An arrangement for introducing a liquid medium into exhaust gases |
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