AT507633A3 - EXHAUST SYSTEM WITH AN EXHAUST GAS TREATMENT SYSTEM - Google Patents

EXHAUST SYSTEM WITH AN EXHAUST GAS TREATMENT SYSTEM Download PDF

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Publication number
AT507633A3
AT507633A3 AT0029110A AT2912010A AT507633A3 AT 507633 A3 AT507633 A3 AT 507633A3 AT 0029110 A AT0029110 A AT 0029110A AT 2912010 A AT2912010 A AT 2912010A AT 507633 A3 AT507633 A3 AT 507633A3
Authority
AT
Austria
Prior art keywords
particle
exhaust gas
exhaust
reducing agent
particle filter
Prior art date
Application number
AT0029110A
Other languages
German (de)
Other versions
AT507633A2 (en
AT507633B1 (en
Inventor
Georg Seewald
Original Assignee
Avl List Gmbh
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 Avl List Gmbh filed Critical Avl List Gmbh
Priority to ATA291/2010A priority Critical patent/AT507633B1/en
Publication of AT507633A2 publication Critical patent/AT507633A2/en
Publication of AT507633A3 publication Critical patent/AT507633A3/en
Application granted granted Critical
Publication of AT507633B1 publication Critical patent/AT507633B1/en

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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
    • F01N3/08—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
    • 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
    • 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
    • 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
    • F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
    • F01N3/0821—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents combined with particulate filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/14—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the exhaust system
    • F02M26/15—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the exhaust system in relation to engine exhaust purifying apparatus
    • 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)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Processes For Solid Components From Exhaust (AREA)

Abstract

Die Erfindung betrifft eine Abgasanlage (1) mit einem Abgasnachbehandlungssystem zur Stickoxid- und Partikelreduzierung, mit zumindest einem SCR-Katalysator (4) zur Stickoxidreduzierung und zumindest einem stromaufwärts des SCR-Katalysators (4) angeordneten Partikelabscheider oder Partikelfilter (3) zur Partikelreduktion, wobei stromaufwärts des Partikelabscheiders oder Partikelfilters (3) eine Zumesseinrichtung (5) für ein Reduktionsmittel (6) angeordnet ist. Um auf möglichst einfache Weise eine Feinverteilung des Reduktionsmittels (6) und eine reduktionsmittelfreie Rückführung von vorgereinigtem Abgas zu ermöglichen, ist vorgesehen, dass stromabwärts des Partikelabscheiders oder Partikelfilters (3) eine Abzweigung (9) für eine Abgasrückführleitung (8) angeordnet ist und dass im Bereich der Zumesseinrichtung (5) im Abgasstrang (7) ein im wesentlichen in Strömungsrichtung des Abgases ausgerichtetes Leitblech (11) angeordnet ist, welches die Abgasströmung durch den Partikelabscheider oder Partikelfilter (3) in einen reduktionsmittelreichen ersten und einen reduktionsmittelarmen zweiten Abgaspfad (12, 13) aufteilt, wobei vorzugsweise die Leiteinrichtung (11) im Strahlbereich des durch die Zumesseinrichtung (5) eingebrachten Reduktionsmittels (6) angeordnet ist. Vorzugsweise kann zwischen der Zumesseinrichtung (5) und dem Partikelabscheider oder Partikelfilter (3) ein Hydrolysekatalysator (14) angeordnet sein.The invention relates to an exhaust system (1) with an exhaust aftertreatment system for nitrogen oxide and particle reduction, with at least one SCR catalyst (4) for nitrogen oxide reduction and at least one particle separator or particle filter (3) arranged upstream of the SCR catalyst (4) for particle reduction, wherein upstream of the particle separator or particle filter (3) a metering device (5) for a reducing agent (6) is arranged. In order to facilitate in the simplest possible way a fine distribution of the reducing agent (6) and a reducing agent-free recycling of pre-purified exhaust gas, it is provided that a branch (9) for an exhaust gas recirculation line (8) is arranged downstream of the particle separator or particle filter (3) and that in In the exhaust line (7), a guide plate (11) oriented substantially in the flow direction of the exhaust gas is arranged, which divides the exhaust gas flow through the particle separator or particle filter (3) into a first and a second exhaust gas path (12, 13) rich in reducing agent ), wherein preferably the guide device (11) in the beam region of the metering device (5) introduced reducing means (6) is arranged. Preferably, a hydrolysis catalytic converter (14) can be arranged between the metering device (5) and the particle separator or particle filter (3).

ATA291/2010A 2009-06-25 2010-02-25 EXHAUST SYSTEM WITH AN EXHAUST GAS TREATMENT SYSTEM AT507633B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ATA291/2010A AT507633B1 (en) 2009-06-25 2010-02-25 EXHAUST SYSTEM WITH AN EXHAUST GAS TREATMENT SYSTEM

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT9832009 2009-06-25
ATA291/2010A AT507633B1 (en) 2009-06-25 2010-02-25 EXHAUST SYSTEM WITH AN EXHAUST GAS TREATMENT SYSTEM

Publications (3)

Publication Number Publication Date
AT507633A2 AT507633A2 (en) 2010-06-15
AT507633A3 true AT507633A3 (en) 2011-07-15
AT507633B1 AT507633B1 (en) 2012-06-15

Family

ID=42244718

Family Applications (1)

Application Number Title Priority Date Filing Date
ATA291/2010A AT507633B1 (en) 2009-06-25 2010-02-25 EXHAUST SYSTEM WITH AN EXHAUST GAS TREATMENT SYSTEM

Country Status (3)

Country Link
CN (1) CN202039923U (en)
AT (1) AT507633B1 (en)
DE (1) DE102010017526A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011108237A1 (en) * 2011-07-21 2013-01-24 Friedrich Boysen Gmbh & Co. Kg Arrangement for introducing an additive into a gas stream
DE102011113809A1 (en) * 2011-09-20 2013-03-21 Volkswagen Aktiengesellschaft Exhaust system for an internal combustion engine
DE102012007890B4 (en) 2012-04-23 2014-09-04 Clariant Produkte (Deutschland) Gmbh Emission control system for cleaning exhaust gas streams from diesel engines
DE102017205697A1 (en) * 2017-04-04 2018-10-04 Volkswagen Aktiengesellschaft Exhaust after-treatment system for an internal combustion engine and internal combustion engine
DE102017107974A1 (en) * 2017-04-12 2018-10-18 Volkswagen Aktiengesellschaft Exhaust after-treatment system for an internal combustion engine and internal combustion engine
CN112505235A (en) * 2020-12-25 2021-03-16 潍柴动力股份有限公司 Method, device, equipment and storage medium for determining distribution amount of substances in SCR

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE519922C2 (en) * 1998-12-07 2003-04-29 Stt Emtec Ab Device and process for exhaust purification and use of the device
JP2007002668A (en) * 2003-07-01 2007-01-11 Tokudaiji Jidosha Bunka Kenkyusho:Kk Diesel engine exhaust emission control device and control means
JP2006348855A (en) * 2005-06-16 2006-12-28 Hino Motors Ltd Exhaust emission control device
DE102006038290A1 (en) * 2006-08-16 2008-02-21 Man Nutzfahrzeuge Aktiengesellschaft Exhaust gas after treatment system with nitrogen oxide and particle reduction during operation of internal combustion engine such as diesel engine, has oxidation catalyst arranged in part of exhaust gas stream and particle separator
DE102006038291A1 (en) * 2006-08-16 2008-02-21 Man Nutzfahrzeuge Aktiengesellschaft aftertreatment system
FR2908472A1 (en) * 2006-11-14 2008-05-16 Faurecia Sys Echappement METHOD FOR SUPPLYING EXHAUST GAS TO AN ENGINE, EXHAUST ELEMENT, EXHAUST LINE AND VEHICLE COMPRISING MEANS FOR SUPPLYING SUCH AN EXHAUST GAS ENGINE
US7805926B2 (en) * 2007-04-30 2010-10-05 Caterpillar Inc Exhaust treatment system having an acidic debris filter

Also Published As

Publication number Publication date
AT507633A2 (en) 2010-06-15
DE102010017526A1 (en) 2010-12-30
CN202039923U (en) 2011-11-16
AT507633B1 (en) 2012-06-15

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Effective date: 20190225