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WO2008111254A1 - 内燃機関の排気浄化装置 - Google Patents

内燃機関の排気浄化装置 Download PDF

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Publication number
WO2008111254A1
WO2008111254A1 PCT/JP2007/070121 JP2007070121W WO2008111254A1 WO 2008111254 A1 WO2008111254 A1 WO 2008111254A1 JP 2007070121 W JP2007070121 W JP 2007070121W WO 2008111254 A1 WO2008111254 A1 WO 2008111254A1
Authority
WO
WIPO (PCT)
Prior art keywords
exhaust gas
gas purification
purification apparatus
reducing agent
combustion engine
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.)
Ceased
Application number
PCT/JP2007/070121
Other languages
English (en)
French (fr)
Inventor
Miwa Hayashi
Takeshi Miyamoto
Fumiyasu Kurogi
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.)
Bosch Corp
Original Assignee
Bosch Corp
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 Bosch Corp filed Critical Bosch Corp
Priority to CN2007800521308A priority Critical patent/CN101627190B/zh
Priority to JP2009503880A priority patent/JP4943499B2/ja
Priority to US12/530,816 priority patent/US8371114B2/en
Publication of WO2008111254A1 publication Critical patent/WO2008111254A1/ja
Anticipated expiration legal-status Critical
Ceased 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
    • F01N3/08—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
    • F01N3/2892—Exhaust flow directors or the like, e.g. upstream of catalytic device
    • 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
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/90—Injecting reactants
    • 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
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9404—Removing only nitrogen compounds
    • B01D53/9409—Nitrogen oxides
    • B01D53/9431—Processes characterised by a specific device
    • 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
    • B01F25/30—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
    • 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
    • B01F25/40—Static mixers
    • B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
    • B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
    • B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
    • B01F25/4314—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor with helical baffles
    • 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
    • B01F25/40—Static mixers
    • B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
    • B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
    • B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
    • B01F25/4316—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor the baffles being flat pieces of material, e.g. intermeshing, fixed to the wall or fixed on a central rod
    • 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
    • F01N13/009—Exhaust or silencing apparatus characterised by constructional features having two or more separate purifying devices arranged in series
    • F01N13/0093—Exhaust or silencing apparatus characterised by constructional features having two or more separate purifying devices arranged in series the purifying devices are of the same type
    • 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
    • F01N13/009—Exhaust or silencing apparatus characterised by constructional features having two or more separate purifying devices arranged in series
    • F01N13/0097—Exhaust or silencing apparatus characterised by constructional features 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
    • 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
    • F01N3/0814—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents combined with catalytic converters, e.g. NOx absorption/storage reduction 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
    • F01N3/206—Adding periodically or continuously substances to exhaust gases for promoting purification, e.g. catalytic material in liquid form, NOx reducing agents
    • F01N3/2066—Selective catalytic reduction [SCR]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/20—Reductants
    • 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
    • F01N2470/00—Structure or shape of exhaust gas passages, pipes or tubes
    • F01N2470/30—Tubes with restrictions, i.e. venturi or the like, e.g. for sucking air or measuring mass 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Toxicology (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Dispersion Chemistry (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

　全体にわたって還元剤を均一に分散させた排気ガスを、下流側に配置されたＮＯX触媒に対して流入させることができる内燃機関の排気浄化装置を提供する。 　内燃機関の排気通路に配置されたＮＯX触媒と、ＮＯX触媒の上流側の排気通路内に還元剤を噴射するための還元剤噴射部と、を備えた内燃機関の排気浄化装置であって、還元剤噴射部による噴射位置の下流側、かつ、ＮＯX触媒の上流側に、流路の断面積が排気通路及びＮＯX触媒の断面積よりも小さくされた絞り部を備えるとともに、絞り部に還元剤拡散手段を備えることを特徴とする。
PCT/JP2007/070121 2007-03-12 2007-10-16 内燃機関の排気浄化装置 Ceased WO2008111254A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN2007800521308A CN101627190B (zh) 2007-03-12 2007-10-16 内燃机的排气净化装置
JP2009503880A JP4943499B2 (ja) 2007-03-12 2007-10-16 内燃機関の排気浄化装置
US12/530,816 US8371114B2 (en) 2007-03-12 2007-10-16 Exhaust gas purification apparatus for internal combustion engine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007061561 2007-03-12
JP2007-061561 2007-03-12

Publications (1)

Publication Number Publication Date
WO2008111254A1 true WO2008111254A1 (ja) 2008-09-18

Family

ID=39759198

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/070121 Ceased WO2008111254A1 (ja) 2007-03-12 2007-10-16 内燃機関の排気浄化装置

Country Status (4)

Country Link
US (1) US8371114B2 (ja)
JP (1) JP4943499B2 (ja)
CN (1) CN101627190B (ja)
WO (1) WO2008111254A1 (ja)

Cited By (36)

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JP2009085179A (ja) * 2007-10-02 2009-04-23 Toyota Motor Corp 排気通路の添加剤分散板構造
JP2010116865A (ja) * 2008-11-13 2010-05-27 Mitsubishi Motors Corp エンジンの排気系構造
JP2010116864A (ja) * 2008-11-13 2010-05-27 Mitsubishi Motors Corp エンジンの排気系構造
WO2010079847A1 (ja) * 2009-01-09 2010-07-15 トヨタ自動車株式会社 内燃機関の排気浄化装置
WO2010082308A1 (ja) * 2009-01-13 2010-07-22 トヨタ自動車株式会社 内燃機関の排気浄化装置
US20100186382A1 (en) * 2009-01-26 2010-07-29 Caterpillar Inc. Emissions system mounting device with reductant mixing
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JP2011047293A (ja) * 2009-08-25 2011-03-10 Bosch Corp 排気浄化装置
WO2011087527A1 (en) * 2010-01-12 2011-07-21 Donaldson Company, Inc. Flow device for exhaust treatment system
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JP2013002398A (ja) * 2011-06-17 2013-01-07 Mitsubishi Motors Corp 排気浄化装置
CN102933810A (zh) * 2010-04-05 2013-02-13 卡特彼勒公司 环式还原剂混合器
WO2013027295A1 (ja) * 2011-08-25 2013-02-28 トヨタ自動車株式会社 内燃機関の排気浄化装置
KR20130140014A (ko) * 2010-10-18 2013-12-23 포르시아 쥐스뗌 데샤피망 차량 배기 라인
JP2014040814A (ja) * 2012-08-23 2014-03-06 Hino Motors Ltd 排気浄化装置
JP2014040828A (ja) * 2012-08-21 2014-03-06 Eberspaecher Exhaust Technology Gmbh & Co Kg 混合および／または蒸発装置を備えた排気システム
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WO2015151282A1 (ja) * 2014-04-04 2015-10-08 フタバ産業株式会社 排気ガス浄化装置
WO2015178231A1 (ja) * 2014-05-20 2015-11-26 日野自動車株式会社 ミキシング構造
JP2015537145A (ja) * 2012-10-26 2015-12-24 ダイムラー・アクチェンゲゼルシャフトＤａｉｍｌｅｒ ＡＧ 排気ガスシステム
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JP2016203032A (ja) * 2015-04-15 2016-12-08 三菱日立パワーシステムズインダストリー株式会社 流体の混合装置及び該流体の混合装置を備えた脱硝装置
WO2017002397A1 (ja) * 2015-06-30 2017-01-05 株式会社ユタカ技研 排ガス浄化装置
US9670811B2 (en) 2010-06-22 2017-06-06 Donaldson Company, Inc. Dosing and mixing arrangement for use in exhaust aftertreatment
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WO2017126121A1 (ja) * 2016-01-22 2017-07-27 フタバ産業株式会社 撹拌装置
US9849424B2 (en) * 2009-04-02 2017-12-26 Cummins Emission Solutions Inc. Reductant decomposition system
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JP2020016432A (ja) * 2018-07-25 2020-01-30 ステップ−テック アクチエンゲゼルシャフトＳｔｅｐ−Ｔｅｃ ＡＧ 冷却剤分散系を再生する再生装置
WO2020110938A1 (ja) * 2018-11-29 2020-06-04 いすゞ自動車株式会社 混合部材、排気浄化装置および車両
CN111886068A (zh) * 2018-01-26 2020-11-03 唐纳森公司 用于将来自喷射器的喷雾混入气体中的混合装置、以及包括混合装置的系统
AT526414A4 (de) * 2022-09-12 2024-03-15 Lec Gmbh Vorrichtung zum Reinigen von Abgasen mit einem selektiven katalytischen Reduktionskatalysator

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GB2549035B (en) * 2010-07-13 2018-01-24 Emcon Tech Uk Limited Vehicle exhaust gas treatment apparatus with an openable cover
CN101890294B (zh) * 2010-07-21 2012-09-05 刘昌林 组合式烟气催化还原脱硝装置
DE102010051691A1 (de) * 2010-11-17 2012-05-24 Bayerische Motoren Werke Aktiengesellschaft Abgasanlage
EP2652279B1 (fr) 2010-12-15 2015-05-13 Faurecia Systèmes d'Echappement Ligne d'échappement avec dispositif d'injection de réactif gazeux
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FR2977632A1 (fr) * 2011-07-05 2013-01-11 Faurecia Sys Echappement Ensemble de purification de gaz d'echappement, avec impacteurs montes sur un deflecteur
FR2977633B1 (fr) * 2011-07-05 2013-08-16 Faurecia Sys Echappement Ensemble de purification de gaz d'echappement
FR2977912B1 (fr) * 2011-07-11 2013-07-05 Peugeot Citroen Automobiles Sa Ensemble coude de post-traitement des gaz d'echappement d'un moteur a combustion comportant un repartiteur d'agent reducteur par impacteur
FR2978492B1 (fr) * 2011-07-28 2013-08-02 Peugeot Citroen Automobiles Sa Ensemble coude de post-traitement des gaz d'echappement d'un moteur a combustion comportant un convergent interne
DE102011111590A1 (de) 2011-08-25 2013-02-28 Volkswagen Aktiengesellschaft Abgasbehandlungseinrichtung, Verfahren zur Aufbereitung von Abgas und Kraftfahrzeug
DE102011083637B4 (de) * 2011-09-28 2016-04-14 Eberspächer Exhaust Technology GmbH & Co. KG Misch- und/oder Verdampfungseinrichtung
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GB2511486A (en) * 2013-01-22 2014-09-10 Daimler Ag Mixing device for an exhaust system of a vehicle
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