WO2008102560A1 - 排気浄化装置 - Google Patents

排気浄化装置 Download PDF

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Publication number
WO2008102560A1
WO2008102560A1 PCT/JP2008/000296 JP2008000296W WO2008102560A1 WO 2008102560 A1 WO2008102560 A1 WO 2008102560A1 JP 2008000296 W JP2008000296 W JP 2008000296W WO 2008102560 A1 WO2008102560 A1 WO 2008102560A1
Authority
WO
WIPO (PCT)
Prior art keywords
exhaust gas
rear end
flow path
mixing pipe
connection flow
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/JP2008/000296
Other languages
English (en)
French (fr)
Inventor
Minoru Kowada
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.)
Hino Motors Ltd
Original Assignee
Hino Motors Ltd
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 Hino Motors Ltd filed Critical Hino Motors Ltd
Priority to EP08710449.3A priority Critical patent/EP2128398B1/en
Priority to US12/525,689 priority patent/US8347610B2/en
Publication of WO2008102560A1 publication Critical patent/WO2008102560A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • 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
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • 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
    • 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
    • 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
    • B01D2251/206—Ammonium compounds
    • B01D2251/2067—Urea
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
    • B01D2257/702—Hydrocarbons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/45—Gas separation or purification devices adapted for specific applications
    • B01D2259/4591—Construction elements containing cleaning material, e.g. 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
    • 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
    • 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
    • F01N2470/18—Structure or shape of exhaust gas passages, pipes or tubes the axis of inlet or outlet tubes being other than the longitudinal axis of 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
    • 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

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

Abstract

 パティキュレートフィルタ5と選択還元型触媒6とを並列に配置し、パティキュレートフィルタ5の後端部から排出された排気ガス3を前方に折り返して隣の選択還元型触媒6の前端部に導入するS字構造の連絡流路9を設け、該連絡流路9の途中に尿素水添加用インジェクタ11を備えた排気浄化装置に関し、排気ガス3の流量が多くなっても尿素水を良好に分散させて排気ガス3との混合性を高め得るようにするため、連絡流路9の上流部分を成すミキシングパイプ9Bの後端部における周方向複数箇所に排気ガス3を導入するためのスリット12を穿設し、該各スリット12の周囲を被包し且つミキシングパイプ9Bの後端面を閉塞し得るようにガス集合室9Aの下流側端部9aをミキシングパイプ9Bの後端部に接続する。
PCT/JP2008/000296 2007-02-23 2008-02-21 排気浄化装置 Ceased WO2008102560A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP08710449.3A EP2128398B1 (en) 2007-02-23 2008-02-21 Exhaust emission control device
US12/525,689 US8347610B2 (en) 2007-02-23 2008-02-21 Exhaust emission control device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007043492A JP4928304B2 (ja) 2007-02-23 2007-02-23 排気浄化装置
JP2007-043492 2007-02-23

Publications (1)

Publication Number Publication Date
WO2008102560A1 true WO2008102560A1 (ja) 2008-08-28

Family

ID=39709840

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/000296 Ceased WO2008102560A1 (ja) 2007-02-23 2008-02-21 排気浄化装置

Country Status (4)

Country Link
US (1) US8347610B2 (ja)
EP (1) EP2128398B1 (ja)
JP (1) JP4928304B2 (ja)
WO (1) WO2008102560A1 (ja)

Cited By (5)

* Cited by examiner, † Cited by third party
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EP2187013A3 (en) * 2008-10-20 2010-12-15 Deere & Company Construction for an exhaust after treatment device
US20120255287A1 (en) * 2009-12-24 2012-10-11 Isuzu Motors Limited Exhaust emission control device
WO2014017310A1 (ja) * 2012-07-25 2014-01-30 日野自動車株式会社 排気浄化装置
CN104066942A (zh) * 2013-01-17 2014-09-24 株式会社小松制作所 还原剂水溶液混合装置及具备它的废气后处理装置
US9604170B2 (en) 2012-01-12 2017-03-28 Hino Motors, Ltd. Exhaust gas purification device

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JP4785803B2 (ja) 2007-08-02 2011-10-05 日野自動車株式会社 排気浄化装置
JP4920532B2 (ja) 2007-09-13 2012-04-18 日野自動車株式会社 排気浄化装置
JP4928409B2 (ja) * 2007-10-23 2012-05-09 日野自動車株式会社 排気浄化装置
JP4995689B2 (ja) * 2007-10-26 2012-08-08 日野自動車株式会社 排気浄化装置
JP5017065B2 (ja) 2007-11-21 2012-09-05 日野自動車株式会社 排気浄化装置
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EP2295756B1 (en) * 2008-05-27 2014-03-05 Hino Motors Ltd. Exhaust emission control device
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DE102009014435A1 (de) 2009-03-26 2010-10-14 J. Eberspächer GmbH & Co. KG Abgasbehandlungseinrichtung
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JP5616194B2 (ja) 2010-01-14 2014-10-29 株式会社クボタ 排気処理装置付きエンジン
JP5619430B2 (ja) * 2010-01-29 2014-11-05 日野自動車株式会社 排気浄化装置
EP3267005B2 (en) * 2010-06-22 2023-12-27 Donaldson Company, Inc. Exhaust aftertreatment device
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JP5728578B2 (ja) * 2013-01-17 2015-06-03 株式会社小松製作所 還元剤水溶液ミキシング装置およびこれを備えた排気ガス後処理装置
KR20140102123A (ko) 2013-01-17 2014-08-21 가부시키가이샤 고마쓰 세이사쿠쇼 환원제 수용액 믹싱 장치 및 이것을 구비한 배기 가스 후처리 장치
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KR20150138172A (ko) * 2013-03-28 2015-12-09 얀마 가부시키가이샤 엔진 장치
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JP6345628B2 (ja) 2015-05-26 2018-06-20 コベルコ建機株式会社 還元剤インジェクタ用ガスケット及びそれを備えた排気ガス後処理装置
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CN107489502B (zh) * 2016-06-13 2020-06-30 天纳克(苏州)排放系统有限公司 尾气后处理混合装置
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JP2024031051A (ja) * 2022-08-25 2024-03-07 ヤンマーホールディングス株式会社 後処理装置およびエンジン

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JP2008208726A (ja) 2008-09-11
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US8347610B2 (en) 2013-01-08
EP2128398A4 (en) 2010-05-26
EP2128398B1 (en) 2013-12-11
JP4928304B2 (ja) 2012-05-09

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