EP1979586A1 - Systeme de recyclage des gaz d'echappement - Google Patents

Systeme de recyclage des gaz d'echappement

Info

Publication number
EP1979586A1
EP1979586A1 EP06701333A EP06701333A EP1979586A1 EP 1979586 A1 EP1979586 A1 EP 1979586A1 EP 06701333 A EP06701333 A EP 06701333A EP 06701333 A EP06701333 A EP 06701333A EP 1979586 A1 EP1979586 A1 EP 1979586A1
Authority
EP
European Patent Office
Prior art keywords
catalytic converter
scr
exhaust gas
soot
injector
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.)
Withdrawn
Application number
EP06701333A
Other languages
German (de)
English (en)
Other versions
EP1979586A4 (fr
Inventor
Gert-Ove WAHLSTRÖM
Paulina Ramfelt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Volvo Truck Corp
Original Assignee
Volvo Lastvagnar AB
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Volvo Lastvagnar AB filed Critical Volvo Lastvagnar AB
Publication of EP1979586A1 publication Critical patent/EP1979586A1/fr
Publication of EP1979586A4 publication Critical patent/EP1979586A4/fr
Withdrawn legal-status Critical Current

Links

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
    • F01N3/023—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 using means for regenerating the filters, e.g. by burning trapped particles
    • F01N3/0231—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 using means for regenerating the filters, e.g. by burning trapped particles using special exhaust apparatus upstream of the filter for producing nitrogen dioxide, e.g. for continuous filter regeneration systems [CRT]
    • 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
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/003—Silencing apparatus characterised by method of silencing by using dead chambers communicating with gas flow passages
    • F01N1/006—Silencing apparatus characterised by method of silencing by using dead chambers communicating with gas flow passages comprising at least one perforated tube extending from inlet to outlet of the silencer
    • 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
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/02—Silencing apparatus characterised by method of silencing by using resonance
    • F01N1/023—Helmholtz resonators
    • 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
    • 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
    • F01N13/0097—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 arranged in a single housing
    • 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
    • F01N13/011—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 purifying devices arranged in parallel
    • F01N13/017—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 purifying devices arranged in parallel the purifying devices are arranged in a single housing
    • 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
    • F01N3/0335—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 exhaust silencers in a single housing
    • 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
    • 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
    • F01N3/105—General auxiliary catalysts, e.g. upstream or downstream of the main catalyst
    • F01N3/106—Auxiliary oxidation catalysts
    • 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
    • F01N3/2882—Catalytic reactors combined or associated with other devices, e.g. exhaust silencers or other exhaust purification devices
    • F01N3/2885—Catalytic reactors combined or associated with other devices, e.g. exhaust silencers or other exhaust purification devices with exhaust silencers in a single housing
    • 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
    • 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
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/003—Silencing apparatus characterised by method of silencing by using dead chambers communicating with gas flow passages
    • 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
    • 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

Definitions

  • the present invention relates to an exhaust gas aftertreatment system for treating exhaust gases from an internal combustion engine, comprising a soot catalytic converter and an SCR catalytic converter, which reduces NOx-emissions by means of a reagent delivered via a nozzle located upstream of the SCR catalytic converter.
  • SCR Selective Catalytic Reduction
  • a reagent in the form a urea/water solution, for example, is injected upstream of an SCR catalytic converter.
  • DPF Diesel Particulate Filters
  • NO 2 is another system which reduces engine particulate emissions (which consist primarily of carbon) .
  • NO 2 is produced by means of an oxidation catalytic converter located upstream of the particulate filter.
  • particulate filter Various types exist, of which the so-called “wall flow” cordierite filter has been the most commonly used. Another type of filter that has emerged of late is the so-called “flow-through” filter. The latter is characterized in that it has a lower - - particulate reduction and is ash-permeable, thereby requiring no servicing.
  • Variants exist in which a hydrolysis catalytic converter may also be incorporated, primarily into the SCR catalytic converter, and the particulate filter may be catalytically coated, thereby avoiding the first oxidation catalytic converter downstream of the engine. They are all characterized, however, in that the particulate filter is located upstream of the urea injection. This has been essential where "wall flow" cordierite filters were used, due among other things to the fact that these collect ash, primarily calcium sulfate (i.e. gypsum), which presents problems if urea/water solution is injected upstream. They are further characterized by a considerable porous mass, which absorbs the ammonia formed and thereby makes transient urea dosing more difficult.
  • An object of the invention is therefore to provide an effective exhaust gas aftertreatment system which is more compact that known systems.
  • the exhaust gas aftertreatment system according to the invention for treating exhaust gases from an internal combustion engine comprises a soot catalytic converter and an SCR catalytic converter, which reduces NOx- emissions by means of a reagent delivered via a nozzle located upstream of the SCR catalytic converter and is characterized in that the soot catalytic converter is located between the nozzle and the SCR catalytic converter.
  • FIG. 1 shows a schematic representation of an internal combustion engine having an exhaust gas aftertreatment system according to the invention
  • Fig. 2 shows in more detail a longitudinal section through a treatment unit forming part of the exhaust gas aftertreatment system according to
  • Fig. 3 correspondingly shows a cross-section through the treatment unit according to Fig. 2. - -
  • the internal combustion engine 10 represented schematically in Fig. 1 comprises an engine block 11 having six piston cylinders 12 with an inlet manifold 13 and an exhaust manifold 14. Exhaust gases from the engine are led via an exhaust line 15 to a turbine rotor 17 of a turbocharger unit 16.
  • the turbine shaft 18 drives the compressor wheel 19 of the turbocharger unit, which via an inlet line 20 compresses intake air and delivers it via an intercooler 21 to the inlet manifold 13.
  • Fuel is fed to each cylinder 12 via injection devices (not shown) .
  • injection devices not shown
  • Exhaust gases that have passed through the turbocharger unit 16 are led onwards via the exhaust line 22 to an oxidation catalytic converter 23 for the production of NO 2 for the exhaust gas flow.
  • a unit 24 for removing soot particles and NO x from the exhaust gas flow Downstream of the oxidation catalytic converter is a unit 24 for removing soot particles and NO x from the exhaust gas flow, which unit will be described with reference to Fig. 2.
  • the unit 24 comprises an oval cylindrical casing 26 having two end walls 27, 28 and three internal dividing walls 29, 30, 31.
  • An inlet pipe 32 extends from the side in through the casing 26 and via a pipe bend onwards in the longitudinal direction of the casing through the three dividing walls 29-31 to a distributing space 33 at the end wall 27.
  • Two catalytic converter units 34, 35 are fitted in parallel, each in its pipe in the casing, said pipes extending through the three dividing walls 29-31 with internal sealing in relation to said walls and external sealing in relation to the outer casing 26, in order to form two separate internal spaces 36, 37 in the casing.
  • the space 36 situated nearest the distributing space 33 communicates via perforations 38 with the exhaust inlet 32.
  • the space 36 therefore communicates with the distributing space 33 via the inlet pipe 32.
  • a further connection between the distributing space 33 and the space 36 is provided via a pipe 39, which extends between the distributing space 33 and the space 37, by the side of the other pipes in the casing 26.
  • the pipe 39 is provided with perforations into the space 36 on the one hand and into the space 37 on the other. The provision of the pipe 39 allows the otherwise enclosed space 37 to serve as a sound-damping
  • the pipe 39 forms a flow path from the space 36 to the distributing space 33 via said perforations, the flow path reducing the pressure gradient into the distributing space and furthermore increasing the scope for gasifying of the reagent in the exhaust gas flow.
  • the distributing space 33 distributes the exhaust gas flow entering via the inlet pipe 32 and the pipe 39 to the two catalytic converter units 34, 35, which are both identically fitted each with its particulate filter 40 of the soot catalytic converter type.
  • the exhaust gas flow from this particulate filter thereafter passes through an SCR-catalytic converter - -
  • the embodiment of the aftertreatment unit 24 according to the invention in which the exhaust gas flow passes through the particulate filter 40 before it reaches the SCR catalytic converter 41, allows the injector 25 to be located advantageously close to the unit 24. Distribution and gasification of the reagent in the exhaust gas flow occurs in the pipes 32, 39, the distributing space 33 and the particulate filter 40. At the same time it becomes possible to locate the particulate filter, the SCR-catalytic converter and the oxidation catalytic converter as a common unit 24 in one and the same casing 26. If the injector 25 were instead to be located between the particulate filter and SCR- catalytic converter, the entire exhaust gas aftertreatment system would have to be configured differently, taking up more space.
  • the aftertreatment unit 24 need not be provided with multiple catalytic converter units arranged in parallel.

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)
  • Materials Engineering (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

L'invention concerne un système de recyclage des gaz d'échappement qui traite les gaz d'échappement provenant d'un moteur à combustion interne (10). Le système comporte un convertisseur catalytique à suie (40) et un convertisseur catalytique SCR (41), qui réduit les émissions de NOx- par le biais d'un réactif acheminé par un injecteur se trouvant en amont du convertisseur catalytique SCR. Selon l'invention le convertisseur catalytique à suie (40) est situé entre l'injecteur (25) et le convertisseur catalytique SCR (41).
EP06701333A 2006-01-24 2006-01-24 Systeme de recyclage des gaz d'echappement Withdrawn EP1979586A4 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SE2006/000113 WO2007086781A1 (fr) 2006-01-24 2006-01-24 Systeme de recyclage des gaz d'echappement

Publications (2)

Publication Number Publication Date
EP1979586A1 true EP1979586A1 (fr) 2008-10-15
EP1979586A4 EP1979586A4 (fr) 2010-03-10

Family

ID=38309482

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06701333A Withdrawn EP1979586A4 (fr) 2006-01-24 2006-01-24 Systeme de recyclage des gaz d'echappement

Country Status (6)

Country Link
US (1) US20090007551A1 (fr)
EP (1) EP1979586A4 (fr)
JP (1) JP2009524758A (fr)
CN (1) CN101336337A (fr)
BR (1) BRPI0621003A2 (fr)
WO (1) WO2007086781A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008035562A1 (de) * 2008-07-30 2010-02-04 Emitec Gesellschaft Für Emissionstechnologie Mbh Abgasreinigungssystem für Dieselmotoren von Nutzkraftfahrzeugen
US8460610B2 (en) * 2009-12-22 2013-06-11 Caterpillar Inc. Canister aftertreatment module
US8596049B2 (en) * 2009-12-22 2013-12-03 Caterpillar Inc. Exhaust system having an aftertreatment module
JP2011247135A (ja) * 2010-05-25 2011-12-08 Isuzu Motors Ltd Ｓｃｒシステム
IN2014MN02308A (fr) * 2012-04-17 2015-10-09 Volvo Lastvagnar Ab
EP3333889B1 (fr) * 2015-08-05 2022-07-20 Panasonic Intellectual Property Management Co., Ltd. Structure de dissipation de chaleur et appareil électronique
WO2018075931A1 (fr) * 2016-10-21 2018-04-26 Cummins Emission Solutions Inc. Forme, géométrie, positionnement et/ou densité cellulaire de substrat permettant d'améliorer la performance de post-traitement
FR3070430B1 (fr) * 2017-08-22 2022-05-13 Psa Automobiles Sa Silencieux de ligne d’echappement pouvant integrer deux catalyseurs de traitement de fuites d’ammoniac
WO2019194784A1 (fr) * 2018-04-02 2019-10-10 Cummins Emission Solutions Inc. Système de post-traitement comprenant des composants réduisant le bruit
DE112018007799T5 (de) 2018-07-03 2021-03-25 Cummins Emission Solutions Inc. Zersetzungsreaktor mit körpermischung
DE102021130365B8 (de) * 2021-11-19 2023-05-04 Emission Partner GmbH & Co. KG Abgasanlage

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6314722B1 (en) * 1999-10-06 2001-11-13 Matros Technologies, Inc. Method and apparatus for emission control
EP1262644A2 (fr) * 2001-06-01 2002-12-04 Nelson Burgess Limited Convertisseur catalytique
US20030221424A1 (en) * 2000-08-30 2003-12-04 J. Eberspacher Gmbh & Co. Exhaust cleaning system
US20050031514A1 (en) * 2003-08-05 2005-02-10 Engelhard Corporation Catalyzed SCR filter and emission treatment system
EP1617051A1 (fr) * 2004-07-15 2006-01-18 Peugeot Citroen Automobiles SA Ligne d'echappement d'un moteur a combustion interne, et systeme d'epuration des gaz d'echappement la comprenant
EP1630369A2 (fr) * 2004-08-26 2006-03-01 DaimlerChrysler AG Méthode de commande d'un dispositif de purification des gaz d'échappement pour un moteur à combustion interne, en particulier d'automobile

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6615580B1 (en) * 1999-06-23 2003-09-09 Southwest Research Institute Integrated system for controlling diesel engine emissions
US6826906B2 (en) * 2000-08-15 2004-12-07 Engelhard Corporation Exhaust system for enhanced reduction of nitrogen oxides and particulates from diesel engines
EP1348838A1 (fr) * 2002-03-26 2003-10-01 Siemens Aktiengesellschaft Dispositif de purification de gaz d'échappement et procédé de régénération d'un filtre à particules
DE10316802A1 (de) * 2003-04-11 2004-10-21 Man Nutzfahrzeuge Ag Kombinierte Abgasnachbehandlungs-/Schalldämpfungsvorrichtung im Abgasstrang einer Brennkraftmaschine
SE523479C2 (sv) * 2003-06-26 2004-04-20 Scania Cv Abp Behållaranordning inrättad att anordnas i ett avgassystem för en förbränningsmotor
US20070012032A1 (en) * 2005-07-12 2007-01-18 Eaton Corporation Hybrid system comprising HC-SCR, NOx-trapping, and NH3-SCR for exhaust emission reduction
US7669408B2 (en) * 2005-12-02 2010-03-02 Eaton Corporation LNT desulfation strategy with reformer temperature management
US7614214B2 (en) * 2006-07-26 2009-11-10 Eaton Corporation Gasification of soot trapped in a particulate filter under reducing conditions
US7874147B2 (en) * 2007-04-26 2011-01-25 Emcon Technologies Llc Method and apparatus for a non-catalytic NOx reduction

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6314722B1 (en) * 1999-10-06 2001-11-13 Matros Technologies, Inc. Method and apparatus for emission control
US20030221424A1 (en) * 2000-08-30 2003-12-04 J. Eberspacher Gmbh & Co. Exhaust cleaning system
EP1262644A2 (fr) * 2001-06-01 2002-12-04 Nelson Burgess Limited Convertisseur catalytique
US20050031514A1 (en) * 2003-08-05 2005-02-10 Engelhard Corporation Catalyzed SCR filter and emission treatment system
EP1617051A1 (fr) * 2004-07-15 2006-01-18 Peugeot Citroen Automobiles SA Ligne d'echappement d'un moteur a combustion interne, et systeme d'epuration des gaz d'echappement la comprenant
EP1630369A2 (fr) * 2004-08-26 2006-03-01 DaimlerChrysler AG Méthode de commande d'un dispositif de purification des gaz d'échappement pour un moteur à combustion interne, en particulier d'automobile

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2007086781A1 *

Also Published As

Publication number Publication date
WO2007086781A1 (fr) 2007-08-02
EP1979586A4 (fr) 2010-03-10
US20090007551A1 (en) 2009-01-08
BRPI0621003A2 (pt) 2011-11-29
CN101336337A (zh) 2008-12-31
JP2009524758A (ja) 2009-07-02

Similar Documents

Publication Publication Date Title
US20090007551A1 (en) Exhaust Gas Aftertreatment System
US8713922B2 (en) Engine exhaust purification device
KR101787333B1 (ko) 배기 시스템 및 선택적인 촉매 환원을 위한 방법
US20110225969A1 (en) Compressor bypass to exhaust for particulate trap regeneration
RU2009132607A (ru) Способ регенерации сажевых фильтров в системе выпуска отработавших газов работающего на обедненных смесях двигателя внутреннего сгорания и предназначенная для этого система выпуска отработавших газов
CN101828010A (zh) 在涡轮增压器前的排气后处理
JP2011021496A (ja) 排気ガス浄化装置
JP2009091982A (ja) 排気浄化装置
JP2009091984A (ja) 排気浄化装置
EP2460986B1 (fr) Réduction de particules dans un système d'échappement d'un moteur à essence
JP5258426B2 (ja) エンジンの排気浄化装置
CN211598859U (zh) 一种发动机的排气***及发动机
CN104204438B (zh) 内燃机
JP5020185B2 (ja) 排気浄化装置
JP4216673B2 (ja) 排気浄化装置
US8277548B2 (en) Combined exhaust gas aftertreatment/air cleaner dust and ejector unit
CN101180455A (zh) 用于排气后处理***的再生的方法
JP2009097435A (ja) 排気浄化装置
JP2012092746A (ja) 排気浄化装置
EP3450715A1 (fr) Système de post-traitement
CN220646057U (zh) 一种小型通用汽油机排气后处理净化与消音装置
FI124642B (en) Catalyst unit for a piston engine and supercharged piston engine
JP2009220033A (ja) 排気浄化触媒装置
US20190085746A1 (en) Aftertreatment system
JP2021055634A (ja) 排気系構造体

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20080825

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

A4 Supplementary search report drawn up and despatched

Effective date: 20100210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20100921