WO2018198345A1 - Dispositif d'épuration de gaz d'échappement - Google Patents

Dispositif d'épuration de gaz d'échappement Download PDF

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Publication number
WO2018198345A1
WO2018198345A1 PCT/JP2017/017027 JP2017017027W WO2018198345A1 WO 2018198345 A1 WO2018198345 A1 WO 2018198345A1 JP 2017017027 W JP2017017027 W JP 2017017027W WO 2018198345 A1 WO2018198345 A1 WO 2018198345A1
Authority
WO
WIPO (PCT)
Prior art keywords
exhaust gas
downstream
upstream
flow path
diffusion portion
Prior art date
Application number
PCT/JP2017/017027
Other languages
English (en)
Japanese (ja)
Inventor
勇人 相澤
知秀 高屋
佑 江原
智美 浦濱
森　仁志
Original Assignee
東京濾器株式会社
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 東京濾器株式会社 filed Critical 東京濾器株式会社
Priority to PCT/JP2017/017027 priority Critical patent/WO2018198345A1/fr
Priority to JP2019515046A priority patent/JP6771099B2/ja
Publication of WO2018198345A1 publication Critical patent/WO2018198345A1/fr

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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
    • 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
    • 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 exhaust gas purified by passing through the SCRs 31 and 32 and the NH 3 slip 33 is air formed between the inner wall of the casing 4 and the first and second flow passages 2 and 3 including the communication part 5. It flows out of the casing 4 (that is, the exhaust emission control device 1) through the layer X (arrow L10 shown by the broken line in FIGS. 1 and 2).

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

Abstract

Dans ce dispositif de purification de gaz d'échappement (1), un premier passage d'écoulement, qui communique avec une entrée d'écoulement de gaz d'échappement (GI) et qui a un DOC et un filtre à particules diesel (DFP), et un second passage d'écoulement (3), qui a des SCR (31,32), sont disposés de manière repliée par l'intermédiaire d'une partie de communication (5). La partie de communication comprend: une partie de diffusion côté amont (52) dans laquelle une partie de dosage (51) est disposée sur le côté amont; une partie de diffusion côté aval (54) dans laquelle le second passage d'écoulement (3) est disposé sur le côté aval; et une partie de connexion (53) qui établit une communication entre la partie de diffusion côté amont (52) et la partie de diffusion côté aval (54). Grâce à cette configuration, l'allongement du dispositif global peut être empêché tout en garantissant la distance entre la partie de dosage (51) et le SCR (31), un mélange suffisant des gaz d'échappement avec un agent réducteur peut être obtenu, et l'efficacité d'épuration de gaz d'échappement peut être améliorée.
PCT/JP2017/017027 2017-04-28 2017-04-28 Dispositif d'épuration de gaz d'échappement WO2018198345A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/JP2017/017027 WO2018198345A1 (fr) 2017-04-28 2017-04-28 Dispositif d'épuration de gaz d'échappement
JP2019515046A JP6771099B2 (ja) 2017-04-28 2017-04-28 排気浄化装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2017/017027 WO2018198345A1 (fr) 2017-04-28 2017-04-28 Dispositif d'épuration de gaz d'échappement

Publications (1)

Publication Number Publication Date
WO2018198345A1 true WO2018198345A1 (fr) 2018-11-01

Family

ID=63918150

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2017/017027 WO2018198345A1 (fr) 2017-04-28 2017-04-28 Dispositif d'épuration de gaz d'échappement

Country Status (2)

Country Link
JP (1) JP6771099B2 (fr)
WO (1) WO2018198345A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100242450A1 (en) * 2009-03-26 2010-09-30 Marcus Werni Exhaust gas-treating device
JP2015068341A (ja) * 2013-09-27 2015-04-13 エーバーシュペッヒャー・エグゾースト・テクノロジー・ゲーエムベーハー・ウント・コンパニー・カーゲー 排気ガス処理装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100242450A1 (en) * 2009-03-26 2010-09-30 Marcus Werni Exhaust gas-treating device
JP2015068341A (ja) * 2013-09-27 2015-04-13 エーバーシュペッヒャー・エグゾースト・テクノロジー・ゲーエムベーハー・ウント・コンパニー・カーゲー 排気ガス処理装置

Also Published As

Publication number Publication date
JPWO2018198345A1 (ja) 2020-01-16
JP6771099B2 (ja) 2020-10-21

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