DE3821832C1 - Exhaust system for a piston internal combustion engine - Google Patents
Exhaust system for a piston internal combustion engineInfo
- Publication number
- DE3821832C1 DE3821832C1 DE3821832A DE3821832A DE3821832C1 DE 3821832 C1 DE3821832 C1 DE 3821832C1 DE 3821832 A DE3821832 A DE 3821832A DE 3821832 A DE3821832 A DE 3821832A DE 3821832 C1 DE3821832 C1 DE 3821832C1
- Authority
- DE
- Germany
- Prior art keywords
- exhaust system
- injection element
- exhaust
- ammonia
- exhaust gas
- 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.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B47/00—Methods of operating engines involving adding non-fuel substances or anti-knock agents to combustion air, fuel, or fuel-air mixtures of engines
- F02B47/04—Methods of operating engines involving adding non-fuel substances or anti-knock agents to combustion air, fuel, or fuel-air mixtures of engines the substances being other than water or steam only
- F02B47/08—Methods of operating engines involving adding non-fuel substances or anti-knock agents to combustion air, fuel, or fuel-air mixtures of engines the substances being other than water or steam only the substances including exhaust gas
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/54—Nitrogen compounds
- B01D53/56—Nitrogen oxides
-
- 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
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
-
- 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)
- General Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
Description
Die Erfindung bezieht sich auf eine Abgasanlage für eine Kolben-Brennkraftmaschine nach dem Oberbegriff des Anspruches 1.The invention relates to an exhaust system for a piston internal combustion engine according to the preamble of Claim 1.
Aus dem JP-Abstract 58-59 307 ist eine gattungsgemäße Brennkraftmaschine mit einer Abgasturboaufladung bekannt, bei der im Abgasstrom stromab der Brennkraft maschine etwa im Bereich seiner höchsten Gastemperatur eine Entstickungsvorrichtung angeordnet ist und die stickoxidreduzierten Abgase dem Turbolader zugeleitet werden. Aus der DE-OS 36 15 021 ist ferner ein Verfah ren zur Entstickung von Abgasen einer Kolben-Brenn kraftmaschine bekannt, bei dem unter Druck Ammoniak (NH₃) zur Reduzierung von Stickoxid in das Abgas eingedüst wird. Weiterhin ist aus der Zeitschrift Chem.-Ing.-Techn. 58 (1986) Nr. 8, S. 617-623 bekannt, zur Eindüsung von Ammoniak in das Abgas Frischluft zu verwenden.JP-Abstract 58-59 307 is a generic one Internal combustion engine with an exhaust gas turbocharger known, in the exhaust gas stream downstream of the internal combustion machine around its highest gas temperature a denitrification device is arranged and the Exhaust gases reduced in nitrogen oxide are fed to the turbocharger will. A process is also known from DE-OS 36 15 021 Ren for the denitrification of exhaust gases from a piston burner Engine known in which ammonia under pressure (NH₃) to reduce nitrogen oxide in the exhaust gas is injected. Furthermore, from the magazine Chem.-Ing.-Techn. 58 (1986) No. 8, pp. 617-623 known, fresh air to inject ammonia into the exhaust gas use.
Aufgabe der Erfindung ist es, für eine gattungsgemäße Abgasanlage einer Brennkraftmaschine mit Turboaufladung eine Ausbildung zu schaffen, mit der die Stickoxide am Abgasaustritt verminderbar sind, wobei ein funktionssicherer Betrieb ermöglicht und mit einem geringen zusätzlichen Bauaufwand eine relativ hohe Entstickungsrate im Abgas gewährleistet wird.The object of the invention is for a generic Exhaust system of an internal combustion engine with turbocharging to create a training with which the nitrogen oxides on Exhaust gas outlet are reducible, being a reliable operation enables and with one low additional construction costs a relatively high Denitrification rate in the exhaust gas is guaranteed.
Diese Aufgabe wird erfindungsgemäß durch die kenn zeichnenden Merkmale des Anspruches 1 gelöst. Weitere vorteilhafte Merkmale beinhalten die Unteransprüche.This object is achieved by the kenn Drawing features of claim 1 solved. Further advantageous features include the subclaims.
Die mit der Erfindung hauptsächlich erzielten Vorteile bestehen darin, daß durch das Einspritzelement im Zusammenspiel mit dem Steuerschieber eine relativ hohe NO x -Reduktion der Motorabgase erreicht wird und auf einen nachgeschalteten Katalysator verzichtet werden kann. Diese NO x -Reduktion wird im wesentlichen dadurch erreicht, daß eine Vermischung der Vergasung des NH₃ in einem Trägergas erfolgt, das wiederum an einer gün stigen Stelle des Abgasleitungssystems den Motorabgasen durch Verschieben des Steuerschiebers zugemischt wird.The main advantages achieved by the invention are that a relatively high NO x reduction of the engine exhaust gases is achieved by the injection element in interaction with the control slide and a downstream catalytic converter can be dispensed with. This NO x reduction is essentially achieved by mixing the gasification of the NH₃ in a carrier gas, which in turn is admixed to the engine exhaust gases by moving the spool valve at a position in the exhaust gas system.
Die Anordnung der im wesentlichen aus dem Einspritz element und dem Steuerschieber bestehende Zuführein richtung ist derart angeordnet, daß durch ein axiales Verschieben des Steuerschiebers, die günstigste Reak tionsstellung des Düsenkopfes im Mündungsbereich des Konverters der Abgasrohre ermittelbar ist. Auch kann das Einspritzelement verschoben werden, so daß die Düse dieses Elements eine veränderte Stellung zur Drall platte einnehmen kann. Das Trägergas sowie die Druck luft können durch eine elektronische Steuerung dem Einspritzelement entsprechend den Anforderungen über Ventile zugeführt werden. Zum Einbringen des Ammoniaks ist eine Förderpumpe vorgesehen, die das flüssige Ammoniak mit Druck in das Einspritzelement fördert und mit Druckluft in die Mischkammer befördert.The arrangement of the essentially from the injection element and the control slide existing feeder direction is arranged such that by an axial Moving the spool, the cheapest reak position of the nozzle head in the mouth area of the Converter of the exhaust pipes can be determined. Can too the injector are moved so that the nozzle this element a changed position to swirl plate can take. The carrier gas as well as the pressure air can be controlled by an electronic control Injection element according to the requirements Valves are fed. For introducing the ammonia a feed pump is provided, which the liquid Promotes ammonia with pressure in the injection element and conveyed into the mixing chamber with compressed air.
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher beschrieben. Es zeigtAn embodiment of the invention is in the Drawing shown and is closer below described. It shows
Fig. 1 ein Funktionsschema eines kombinierten Arbeitsverfahrens über eine Aufladung einer Brennkraftmaschine bei gleichzeiti ger Ammoniakzuführung, Fig. 1 is a functional diagram of a combined work process via a supercharging of an internal combustion engine at gleichzeiti ger ammonia feed,
Fig. 2 Einen Längsschnitt nach der Linie II-II der Fig. 3 durch ein Abgasleitungssystem mit einer Zuführeinrichtung, Fig. 2 is a longitudinal section along the line II-II of Fig. 3, through an exhaust pipe system with a feed
Fig. 3 ein Abgasleitungssystem im Querschnitt. Fig. 3 shows an exhaust pipe system in cross section.
Eine Brennkraftmaschine 1 wird über einen Ladeluft kühler 2 mit Ladeluft höheren Druckes gegenüber der Atmosphäre über eine Ladeluftleitung 3 von einem Verdichter 4 eines Abgasturboladers 5 versorgt. Der Verdichter 4 wird durch eine Abgasturbine 6 ange trieben, die vom Abgasstrom 7 des Abgassystems 8 beaufschlagt wird.An internal combustion engine 1 is supplied via a charge air cooler 2 with charge air of higher pressure than the atmosphere via a charge air line 3 from a compressor 4 of an exhaust gas turbocharger 5 . The compressor 4 is driven by an exhaust gas turbine 6 , which is acted upon by the exhaust gas flow 7 of the exhaust system 8 .
Wie Fig. 2 insbesondere in Verbindung mit Fig. 3 näher zeigt, vereinigen sich die Rohre 9, 10, 11 und 12 des Abgasleitungssystems 8 in einem Konverter 14, der an das Gasaustrittsgehäuse 13 anschließt. Zentrisch der Rohre 9 bis 12 ist, wie Fig. 1 näher zeigt, eine Zuführeinrichtung 16, bestehend aus einem Einspritzele ment 15, einem Steuerschieber 34 und einem Draller zeuger als Drallscheibe 29 angeordnet und über einen Führungszylinder 33 gehalten.As shown in FIG. 2 in particular in connection with FIG. 3 in more detail, the tubes 9, 10, 11 and 12 of the exhaust passage system 8 in a converter 14, which connects to the gas outlet housing 13 combine. Centrally, the tubes 9 to 12 , as shown in FIG. 1, a feed device 16 , consisting of an injection element 15 , a control slide 34 and a swirl generator as a swirl disk 29 are arranged and held by a guide cylinder 33 .
Im Abgasstrom 7 der Brennkraftmaschine 1, etwa im Bereich seiner höchsten Gastemperatur, wird dem Abgas vom Einspritzelement 15 über den Steuerschieber 16 ein Gemisch aus Ammoniak (NH₃) und einem Trägergas (TG) unter Druck zugeführt. Für die Druckerzeugung kann ein Kompressor (32) herangezogen werden. Durch die Reaktion des Ammoniakgases mit dem Abgas werden die Abgase entsprechend den Vorgaben, wie beispielsweise Druck, Temperatur und anderen Parametern reduziert, d. h. die Stickoxidanteile im Abgas werden abgesenkt.In the exhaust gas stream 7 of the internal combustion engine 1 , approximately in the region of its highest gas temperature, the exhaust gas from the injection element 15 via the control slide 16 is supplied with a mixture of ammonia (NH₃) and a carrier gas (TG) under pressure. A compressor ( 32 ) can be used to generate the pressure. Through the reaction of the ammonia gas with the exhaust gas, the exhaust gases are reduced in accordance with the specifications, such as pressure, temperature and other parameters, ie the nitrogen oxide content in the exhaust gas is reduced.
Das Einspritzelement 15 ist koaxial zum anschließenden Steuerschieber 16 angeordnet und umfaßt endseitig eine Düse 17 und ist mit Verbindungsleitung 18, 19 und 20 mit jeweils einem Ventil 21, 22 und 23 versehen. Das Ventil 21 steuert die Trägergaszufuhr, das Ventil 22 die Luftzufuhr und das Ventil 23 die Ammoniakzufuhr.The injection element 15 is arranged coaxially with the adjoining control slide 16 and comprises a nozzle 17 at the end and is provided with a connecting line 18, 19 and 20 , each with a valve 21, 22 and 23 . The valve 21 controls the carrier gas supply, the valve 22 the air supply and the valve 23 the ammonia supply.
Der Steuerschieber 16 weist einen Düsenkopf 24 mit einer Vielzahl von kleinen Durchtrittsöffnungen 24 a auf, die dem Gaseintrittsgehäuse 13 zugerichtet sind. In einer Führung ist der Steuerschieber 34 axial verschiebbar gegen die Spannung einer Feder 5 gehal ten, wobei ein sich in das Innere des rohrförmigen Steuerschiebers 34 erstreckendes Rohrteil 26, den Verschiebeweg s überbrückend, koaxial zum Steuer schieber 16 angeordnet ist. Im hinteren Ende des Rohrteils 26 ist eine Drallscheibe 29 vorgesehen, die der Düse 17 des Einspritzelements 15 zugerichtet ist. Die Verschiebung des Steuerschiebers 34 kann auch pneumatisch erfolgen, wozu ein Druckluftanschluß 27 vorgesehen ist.The control slide 16 has a nozzle head 24 with a plurality of small passage openings 24 a , which are aligned with the gas inlet housing 13 . In a guide, the control spool 34 is axially displaceable against the tension of a spring 5 , wherein a tube part 26 extending into the interior of the tubular control spool 34 , spanning the displacement path s , is arranged coaxially with the control spool 16 . In the rear end of the tubular part 26 , a swirl disk 29 is provided, which is directed towards the nozzle 17 of the injection element 15 . The control slide 34 can also be moved pneumatically, for which purpose a compressed air connection 27 is provided.
Eine Zuführung des über die Leitung 20 zum Einspritz element 15 gelangenden Ammoniaks erfolgt mittels der Pumpe 35.A supply of the ammonia via the line 20 to the injection element 15 takes place by means of the pump 35 .
Die Zerstäubung des flüssigen Ammoniaks wird über die Düse 17 des Einspritzelements 15 vorgenommen, wobei durch die vorgeschaltete Drallscheibe 29 eine Vergasung und Vermischung mit dem Trägergas TG erfolgt. Das Ammoniak-Trägergas-Gemisch wird dann mit Druck über die Durchtrittsöffnungen 24 a im Düsenkopf 24 in den Abgas strom 7 im Bereich des Gaseintrittsgehäuses 13 ein gedüst.The liquid ammonia is atomized via the nozzle 17 of the injection element 15 , gasification and mixing with the carrier gas TG taking place through the upstream swirl disk 29 . The ammonia / carrier gas mixture is then sprayed with pressure via the passage openings 24 a in the nozzle head 24 into the exhaust gas stream 7 in the region of the gas inlet housing 13 .
Wie Fig. 1 zeigt, sind das Trägergas TG und die Luft L entsprechend den Vorgaben über Ventile und dergleichen dem Einspritzelement 15 mittels Kompressoren 32 zuführ bar, wobei auch entsprechende Anzeigegeräte vorgesehen sind.As shown in FIG. 1, the carrier gas TG and the air L can be supplied to the injection element 15 by means of compressors 32 in accordance with the specifications for valves and the like, with corresponding display devices also being provided.
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3821832A DE3821832C1 (en) | 1988-06-29 | 1988-06-29 | Exhaust system for a piston internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3821832A DE3821832C1 (en) | 1988-06-29 | 1988-06-29 | Exhaust system for a piston internal combustion engine |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3821832C1 true DE3821832C1 (en) | 1989-11-02 |
Family
ID=6357457
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE3821832A Expired DE3821832C1 (en) | 1988-06-29 | 1988-06-29 | Exhaust system for a piston internal combustion engine |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3821832C1 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0624391A1 (en) * | 1993-05-08 | 1994-11-17 | Bayer Ag | Process for the denitrification of flue gases |
WO1996008639A1 (en) * | 1994-09-13 | 1996-03-21 | Siemens Aktiengesellschaft | Process and device for introducing a fluid into an exhaust gas purification system |
WO1997007876A2 (en) * | 1995-08-23 | 1997-03-06 | Siemens Aktiengesellschaft | Method and device for decomposing oxides of nitrogen in the exhaust gases from an internal-combustion engine |
FR2755624A1 (en) * | 1996-11-12 | 1998-05-15 | Daimler Benz Ag | NITROGEN OXIDE REDUCER INJECTION SYSTEM IN AN EXHAUST GAS FLOW |
EP1111211A2 (en) * | 1999-12-21 | 2001-06-27 | Ford Global Technologies, Inc. | Exhaust gas purification system for a lean burn engine |
DE102006045435A1 (en) * | 2006-09-26 | 2008-03-27 | Faurecia Abgastechnik Gmbh | Exhaust gas system for diesel vehicle, has mixing device that is connected upstream of converter for mixing exhaust gas stream with reducing agent from one parallel line and reducing agent-free exhaust gas stream from another parallel line |
DE102008041530A1 (en) | 2008-08-25 | 2010-03-04 | Dirk Dombrowski | Process and exhaust system for the purification of SOx-containing exhaust gases, in particular marine propulsion engines |
DK178838B1 (en) * | 2011-12-13 | 2017-03-13 | Hitachi Shipbuilding Eng Co | Urea solution spraying structure |
WO2018063052A1 (en) * | 2016-09-30 | 2018-04-05 | Scania Cv Ab | Multiple bank exhaust system comprising reductant supply system arranged upstream of a turbine |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2031069A (en) * | 1978-09-15 | 1980-04-16 | Maschf Augsburg Nuernberg Ag | Turbine of exhaust gas turbo- charger |
JPS5859307A (en) * | 1981-10-05 | 1983-04-08 | Mitsui Eng & Shipbuild Co Ltd | Denitrification for exhaust gas of diesel engine |
DE3615021A1 (en) * | 1986-05-02 | 1987-11-05 | Ruhrgas Ag | Process and device for the selective catalytic reduction of the nitrogen oxides from exhaust gases of an internal combustion engine |
DE3715729C1 (en) * | 1987-05-12 | 1988-09-08 | Krupp Mak Maschb Gmbh | Turbine housing for an exhaust gas turbocharger of an internal combustion engine |
-
1988
- 1988-06-29 DE DE3821832A patent/DE3821832C1/en not_active Expired
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2031069A (en) * | 1978-09-15 | 1980-04-16 | Maschf Augsburg Nuernberg Ag | Turbine of exhaust gas turbo- charger |
JPS5859307A (en) * | 1981-10-05 | 1983-04-08 | Mitsui Eng & Shipbuild Co Ltd | Denitrification for exhaust gas of diesel engine |
DE3615021A1 (en) * | 1986-05-02 | 1987-11-05 | Ruhrgas Ag | Process and device for the selective catalytic reduction of the nitrogen oxides from exhaust gases of an internal combustion engine |
DE3715729C1 (en) * | 1987-05-12 | 1988-09-08 | Krupp Mak Maschb Gmbh | Turbine housing for an exhaust gas turbocharger of an internal combustion engine |
Non-Patent Citations (1)
Title |
---|
Chem.-Ing.-Tech. 58 (1986) Nr. 8, S. 617-623 * |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0624391A1 (en) * | 1993-05-08 | 1994-11-17 | Bayer Ag | Process for the denitrification of flue gases |
WO1996008639A1 (en) * | 1994-09-13 | 1996-03-21 | Siemens Aktiengesellschaft | Process and device for introducing a fluid into an exhaust gas purification system |
WO1997007876A2 (en) * | 1995-08-23 | 1997-03-06 | Siemens Aktiengesellschaft | Method and device for decomposing oxides of nitrogen in the exhaust gases from an internal-combustion engine |
WO1997007876A3 (en) * | 1995-08-23 | 1997-04-17 | Siemens Ag | Method and device for decomposing oxides of nitrogen in the exhaust gases from an internal-combustion engine |
US5974789A (en) * | 1995-08-23 | 1999-11-02 | Siemens Aktiengesellschaft | Method and device for decomposing nitrogen oxides in the exhaust gas of an internal combustion engine |
FR2755624A1 (en) * | 1996-11-12 | 1998-05-15 | Daimler Benz Ag | NITROGEN OXIDE REDUCER INJECTION SYSTEM IN AN EXHAUST GAS FLOW |
US5907950A (en) * | 1996-11-12 | 1999-06-01 | Daimler-Benz Aktiengesellschaft | System for injecting nitrogen-oxide-reducing agents into an exhaust stream |
EP1111211A3 (en) * | 1999-12-21 | 2003-08-13 | Ford Global Technologies, Inc. | Exhaust gas purification system for a lean burn engine |
EP1111211A2 (en) * | 1999-12-21 | 2001-06-27 | Ford Global Technologies, Inc. | Exhaust gas purification system for a lean burn engine |
DE102006045435A1 (en) * | 2006-09-26 | 2008-03-27 | Faurecia Abgastechnik Gmbh | Exhaust gas system for diesel vehicle, has mixing device that is connected upstream of converter for mixing exhaust gas stream with reducing agent from one parallel line and reducing agent-free exhaust gas stream from another parallel line |
DE102006045435B4 (en) * | 2006-09-26 | 2008-06-05 | Faurecia Abgastechnik Gmbh | Exhaust system for diesel vehicles with an SCR catalytic converter |
EP2161423A1 (en) | 2006-09-26 | 2010-03-10 | Faurecia Abgastechnik GmbH | Exhaust gas facility for diesel vehicles with an SCR catalytic converter |
US7793490B2 (en) | 2006-09-26 | 2010-09-14 | Faurecia Abgastechnik Gmbh | Exhaust gas system for diesel vehicles with an SCR catalytic converter |
DE102008041530A1 (en) | 2008-08-25 | 2010-03-04 | Dirk Dombrowski | Process and exhaust system for the purification of SOx-containing exhaust gases, in particular marine propulsion engines |
DK178838B1 (en) * | 2011-12-13 | 2017-03-13 | Hitachi Shipbuilding Eng Co | Urea solution spraying structure |
WO2018063052A1 (en) * | 2016-09-30 | 2018-04-05 | Scania Cv Ab | Multiple bank exhaust system comprising reductant supply system arranged upstream of a turbine |
US11149622B2 (en) | 2016-09-30 | 2021-10-19 | Scania Cv Ab | Multiple bank exhaust system comprising reductant supply system arranged upstream of a turbine |
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Legal Events
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8100 | Publication of the examined application without publication of unexamined application | ||
D1 | Grant (no unexamined application published) patent law 81 | ||
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |