EP2687286A3 - Mixing device for the aftertreatment of exhaust gases - Google Patents

Mixing device for the aftertreatment of exhaust gases Download PDF

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Publication number
EP2687286A3
EP2687286A3 EP13002562.0A EP13002562A EP2687286A3 EP 2687286 A3 EP2687286 A3 EP 2687286A3 EP 13002562 A EP13002562 A EP 13002562A EP 2687286 A3 EP2687286 A3 EP 2687286A3
Authority
EP
European Patent Office
Prior art keywords
housing
exhaust
inner tube
main
stream
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.)
Granted
Application number
EP13002562.0A
Other languages
German (de)
French (fr)
Other versions
EP2687286B1 (en
EP2687286A2 (en
Inventor
Albert Herbert
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.)
MAN Truck and Bus SE
Original Assignee
MAN Truck and Bus SE
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 MAN Truck and Bus SE filed Critical MAN Truck and Bus SE
Publication of EP2687286A2 publication Critical patent/EP2687286A2/en
Publication of EP2687286A3 publication Critical patent/EP2687286A3/en
Application granted granted Critical
Publication of EP2687286B1 publication Critical patent/EP2687286B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F01N3/206—Adding periodically or continuously substances to exhaust gases for promoting purification, e.g. catalytic material in liquid form, NOx reducing agents
    • 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
    • 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
    • B01F25/10—Mixing by creating a vortex flow, e.g. by tangential introduction of flow components
    • B01F25/103—Mixing by creating a vortex flow, e.g. by tangential introduction of flow components with additional mixing means other than vortex mixers, e.g. the vortex chamber being positioned in another mixing chamber
    • 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
    • B01F25/313—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit
    • 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
    • B01F25/32—Injector mixers wherein the additional components are added in a by-pass of the main flow
    • 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
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • 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
    • B01F2025/93—Arrangements, nature or configuration of flow guiding elements
    • B01F2025/931—Flow guiding elements surrounding feed openings, e.g. jet nozzles
    • 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
    • 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
    • F01N2240/40—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 hydrolysis catalyst
    • 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
    • F01N2340/00—Dimensional characteristics of the exhaust system, e.g. length, diameter or volume of the apparatus; Spatial arrangements of exhaust apparatuses
    • 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
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • 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
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/02—Tubes being perforated
    • 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
    • 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
    • F01N2610/03—Adding substances to exhaust gases the substance being hydrocarbons, e.g. engine fuel
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

Mischvorrichtung (1) zur Nachbehandlung von Abgasen (2) in einer Abgasanlage einer Brennkraftmaschine, die ein einen Eintrittsquerschnitt (3) aufweisendes Gehäuse (4) und ein innerhalb des Gehäuses (4) angeordnetes, sich im Wesentlichen parallel zu einer Hauptinjektionsrichtung (5) einer Dosiereinrichtung (6) zur Zuführung einer Flüssigkeit und/oder eines Flüssigkeit-Gas-Gemisches erstreckendes Innenrohr (7) mit einem im Inneren (8) des Innenrohres (7) ausgebildeten Vormischbereichs (10) umfasst, wobei das Gehäuse (4) einen spiralförmigen Gehäuseabschnitt (13) aufweist und an einer Stirnseite (11) des Gehäuses (4) die Dosiereinrichtung (6) angeordnet ist, wobei ein Abgashauptstrom (12) zwischen dem Gehäuse (4) und der äußeren Mantelfläche (14) des Innenrohres (7) geführt und einem Hauptmischbereich (16) zuführbar ist und ein Abgasteilstrom (17) durch einen Innenrohrdurchtritt (18) in den dosiereinrichtungsnäheren Vormischbereich (10) zuführbar ist, wobei der Abgasteilstrom (17) über den Vormischbereich (10) in den Hauptmischbereich (16) mündet und der Abgashauptstrom (12) einen größeren Abgasvolumenanteil als der Abgasteilstrom (17) umfasst.

Figure imgaf001
Mixing device (1) for the aftertreatment of exhaust gases (2) in an exhaust system of an internal combustion engine having a housing (4) having an inlet cross-section (3) and a housing arranged inside the housing (4) substantially parallel to a main injection direction (5) Dosing device (6) for supplying a liquid and / or a liquid-gas mixture extending inner tube (7) with a in the interior (8) of the inner tube (7) formed Vormischbereichs (10), wherein the housing (4) has a spiral-shaped housing portion (13) and on a front side (11) of the housing (4) the metering device (6) is arranged, wherein a main exhaust stream (12) between the housing (4) and the outer lateral surface (14) of the inner tube (7) out and a primary mixing region (16) can be fed and an exhaust gas partial stream (17) through an inner tube passage (18) in the metering device nearer Vormischbereich (10) can be supplied, wherein the exhaust part trom (17) via the Vormischbereich (10) in the main mixing region (16) opens and the exhaust main stream (12) comprises a larger exhaust gas volume fraction than the exhaust gas partial stream (17).
Figure imgaf001
EP13002562.0A 2012-07-20 2013-05-16 Mixing device for the aftertreatment of exhaust gases Active EP2687286B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102012014333.8A DE102012014333A1 (en) 2012-07-20 2012-07-20 Mixing device for aftertreatment of exhaust gases

Publications (3)

Publication Number Publication Date
EP2687286A2 EP2687286A2 (en) 2014-01-22
EP2687286A3 true EP2687286A3 (en) 2017-06-28
EP2687286B1 EP2687286B1 (en) 2021-03-31

Family

ID=48444032

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13002562.0A Active EP2687286B1 (en) 2012-07-20 2013-05-16 Mixing device for the aftertreatment of exhaust gases

Country Status (5)

Country Link
EP (1) EP2687286B1 (en)
CN (1) CN103573350B (en)
BR (1) BR102013017993B1 (en)
DE (1) DE102012014333A1 (en)
RU (1) RU2631591C2 (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202008001547U1 (en) 2007-07-24 2008-04-10 Emcon Technologies Germany (Augsburg) Gmbh Assembly for introducing a reducing agent into the exhaust pipe of an exhaust system of an internal combustion engine
DE102012010878A1 (en) 2012-06-01 2013-12-05 Daimler Ag Reductant addition and treatment system of a motor vehicle
EP3152419B1 (en) 2014-06-03 2020-03-04 Faurecia Emissions Control Technologies, USA, LLC Doser cone assembly
WO2016013319A1 (en) * 2014-07-25 2016-01-28 フタバ産業株式会社 Dosing pipe
SE538308C2 (en) * 2014-09-03 2016-05-10 Scania Cv Ab Device for injecting a reducing agent into exhaust gases
DE102015002432A1 (en) * 2015-02-26 2016-09-01 Daimler Ag Exhaust after-treatment device for an internal combustion engine of a motor vehicle
DE102015002974A1 (en) 2015-03-10 2016-09-15 Man Truck & Bus Ag Device for the aftertreatment of exhaust gas of a motor vehicle
US9719397B2 (en) 2015-04-30 2017-08-01 Faurecia Emissions Control Technologies Usa, Llc Mixer with integrated doser cone
WO2016176076A1 (en) 2015-04-30 2016-11-03 Faurecia Emissions Control Technologies, Usa, Llc Full rotation mixer
US9828897B2 (en) 2015-04-30 2017-11-28 Faurecia Emissions Control Technologies Usa, Llc Mixer for a vehicle exhaust system
US9714598B2 (en) 2015-04-30 2017-07-25 Faurecia Emissions Control Technologies, Usa, Llc Mixer with integrated doser cone
US10086332B2 (en) * 2015-05-07 2018-10-02 Ford Global Technologies, Llc Exhaust flow device
US10100706B2 (en) * 2016-02-12 2018-10-16 Ford Global Technologies, Llc Urea mixer
AT518758B1 (en) * 2016-05-23 2018-11-15 Avl List Gmbh EXHAUST GAS TREATMENT DEVICE FOR AN INTERNAL COMBUSTION ENGINE
US10612442B2 (en) 2016-08-22 2020-04-07 Daimler Ag Exhaust gas treatment device for an internal combustion engine of a motor vehicle
WO2018075061A1 (en) 2016-10-21 2018-04-26 Faurecia Emissions Control Technologies Usa, Llc Reducing agent mixer
US10787946B2 (en) 2018-09-19 2020-09-29 Faurecia Emissions Control Technologies, Usa, Llc Heated dosing mixer
CN110792496A (en) * 2019-10-14 2020-02-14 东莞材料基因高等理工研究院 Imaging detection device of diesel particle catcher
FI20205784A1 (en) * 2020-08-05 2022-02-06 Proventia Oy Method in a flow device for exhaust gas aftertreatment and the flow device

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FR1323501A (en) * 1956-10-17 1963-04-12 Atomizer mixer device
DE4012411A1 (en) * 1990-04-19 1991-10-24 Webasto Ag Fahrzeugtechnik Exhaust-operated filter-regenerating burner - divides gas into equal evenly-distributed currents before combustion chamber inlet
CN1187778A (en) * 1995-06-28 1998-07-15 西门子公司 Catalytic purification process and device for exhaust gas from combustion system
DE19955013A1 (en) * 1999-11-16 2001-05-17 Volkswagen Ag Unit for removing harmful pollutants from I.C. engine exhaust gas has catalyst section connected coaxially to partial section of exhaust gas channel
WO2011163395A1 (en) * 2010-06-22 2011-12-29 Donaldson Company, Inc. Dosing and mixing arrangement for use in exhaust aftertreatment
DE102010035311A1 (en) * 2010-08-25 2012-03-01 Boa Balg- Und Kompensatoren-Technologie Gmbh Decoupling element, in particular for exhaust systems
WO2012047159A1 (en) * 2010-10-06 2012-04-12 Scania Cv Ab (Publ) Arrangement for introducing a liquid medium into exhaust gases from a combustion engine
EP2465602A2 (en) * 2010-12-14 2012-06-20 Proventia Emission Control Oy Method and device for exhaust gas cleaning

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DE19913462A1 (en) * 1999-03-25 2000-09-28 Man Nutzfahrzeuge Ag Urea hydrolysis to generate ammonia for reducing nitrogen oxides in an exhaust gas catalytic converter comprises reacting urea with a side stream of exhaust gas
KR100927434B1 (en) * 2005-04-13 2009-11-19 그런포스 노녹스 에이/에스 Mixer for mixing urea and air
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DE102009053950A1 (en) * 2009-11-19 2011-05-26 Man Nutzfahrzeuge Aktiengesellschaft Device for aftertreatment of exhaust gases of internal combustion engines
US8302389B2 (en) * 2009-11-23 2012-11-06 International Engine Intellectual Property Company, Llc Urea SCR diesel aftertreatment system
ES2434865T3 (en) * 2009-12-16 2013-12-17 Iveco Motorenforschung Ag Procedure for dosing a urea-based reducing agent in a gas exhaust stream.
DE102010032576A1 (en) * 2010-07-28 2012-02-02 Emitec Gesellschaft Für Emissionstechnologie Mbh Device for near-exhaust gas treatment
SE535198C2 (en) * 2010-09-30 2012-05-15 Scania Cv Ab Arrangement for introducing a liquid medium into exhaust gases from an internal combustion engine
SE535235C2 (en) * 2010-10-22 2012-06-05 Scania Cv Abp Arrangement for introducing a liquid medium into exhaust gases from an internal combustion engine
DE102010056314A1 (en) * 2010-12-27 2012-06-28 Friedrich Boysen Gmbh & Co. Kg Device for distributing fluids in exhaust systems

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1323501A (en) * 1956-10-17 1963-04-12 Atomizer mixer device
DE4012411A1 (en) * 1990-04-19 1991-10-24 Webasto Ag Fahrzeugtechnik Exhaust-operated filter-regenerating burner - divides gas into equal evenly-distributed currents before combustion chamber inlet
CN1187778A (en) * 1995-06-28 1998-07-15 西门子公司 Catalytic purification process and device for exhaust gas from combustion system
DE19955013A1 (en) * 1999-11-16 2001-05-17 Volkswagen Ag Unit for removing harmful pollutants from I.C. engine exhaust gas has catalyst section connected coaxially to partial section of exhaust gas channel
WO2011163395A1 (en) * 2010-06-22 2011-12-29 Donaldson Company, Inc. Dosing and mixing arrangement for use in exhaust aftertreatment
DE102010035311A1 (en) * 2010-08-25 2012-03-01 Boa Balg- Und Kompensatoren-Technologie Gmbh Decoupling element, in particular for exhaust systems
WO2012047159A1 (en) * 2010-10-06 2012-04-12 Scania Cv Ab (Publ) Arrangement for introducing a liquid medium into exhaust gases from a combustion engine
EP2465602A2 (en) * 2010-12-14 2012-06-20 Proventia Emission Control Oy Method and device for exhaust gas cleaning

Also Published As

Publication number Publication date
BR102013017993A2 (en) 2015-06-30
CN103573350A (en) 2014-02-12
BR102013017993B1 (en) 2021-04-06
DE102012014333A1 (en) 2014-01-23
EP2687286B1 (en) 2021-03-31
CN103573350B (en) 2019-01-11
EP2687286A2 (en) 2014-01-22
RU2013130797A (en) 2015-01-10
RU2631591C2 (en) 2017-09-25

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