PH12019500249A1 - Device and method for removing urea-derived deposits in internal combustion engine - Google Patents

Device and method for removing urea-derived deposits in internal combustion engine

Info

Publication number
PH12019500249A1
PH12019500249A1 PH12019500249A PH12019500249A PH12019500249A1 PH 12019500249 A1 PH12019500249 A1 PH 12019500249A1 PH 12019500249 A PH12019500249 A PH 12019500249A PH 12019500249 A PH12019500249 A PH 12019500249A PH 12019500249 A1 PH12019500249 A1 PH 12019500249A1
Authority
PH
Philippines
Prior art keywords
time duration
combustion engine
internal combustion
purge control
urea
Prior art date
Application number
PH12019500249A
Inventor
Junji IKE
Kenta Shioyasu
Tsuyoshi Suzuki
Shinji Hara
Original Assignee
Isuzu 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 Isuzu Motors Ltd filed Critical Isuzu Motors Ltd
Publication of PH12019500249A1 publication Critical patent/PH12019500249A1/en

Links

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
    • 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
    • F01N3/18—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
    • 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)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Environmental & Geological Engineering (AREA)
  • Toxicology (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

A device 110 for removing urea-derived deposits in an internal combustion engine is provided with a purge control unit 101 for executing purge control to remove urea-derived deposits, which are derived from urea water supplied from a urea SCR device 60 disposed in an exhaust passage 30 of an internal combustion engine 10. This purge control unit: executes purge control every time a preset first time duration elapses; and executes purge control irrespective of whether or not the first time duration has elapsed if, upon measurement of a low-temperature operation time duration, which is an operation time duration of the internal combustion engine in which the temperature of exhaust upstream of the urea SCR device is equal to or less than a prescribed temperature, the measured low-temperature operation time duration exceeds a preset second time duration.
PH12019500249A 2016-08-10 2019-02-04 Device and method for removing urea-derived deposits in internal combustion engine PH12019500249A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016157757A JP6705334B2 (en) 2016-08-10 2016-08-10 Apparatus and method for removing urea-derived deposits in an internal combustion engine
PCT/JP2017/027433 WO2018030178A1 (en) 2016-08-10 2017-07-28 Device and method for removing urea-derived deposits in internal combustion engine

Publications (1)

Publication Number Publication Date
PH12019500249A1 true PH12019500249A1 (en) 2019-10-21

Family

ID=61162459

Family Applications (1)

Application Number Title Priority Date Filing Date
PH12019500249A PH12019500249A1 (en) 2016-08-10 2019-02-04 Device and method for removing urea-derived deposits in internal combustion engine

Country Status (5)

Country Link
JP (1) JP6705334B2 (en)
CN (1) CN109563754B (en)
MY (1) MY201140A (en)
PH (1) PH12019500249A1 (en)
WO (1) WO2018030178A1 (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5618542B2 (en) * 2006-12-23 2014-11-05 アルツケム アクチエンゲゼルシャフトＡｌｚＣｈｅｍ ＡＧ Use of aqueous solutions containing guanidinium formate as ammonia precursors for selective catalytic reduction of nitrogen oxides in exhaust gas
US8079211B2 (en) * 2008-11-06 2011-12-20 Ford Global Technologies, Llc Bypass purge for protecting against formation of reductant deposits
JP2011220232A (en) * 2010-04-09 2011-11-04 Ud Trucks Corp Exhaust emission control device for engine
JP2011247135A (en) * 2010-05-25 2011-12-08 Isuzu Motors Ltd Scr system
SE536889C2 (en) * 2012-03-22 2014-10-21 Scania Cv Ab Device and method for cleaning an SCR system
EP2927443A1 (en) * 2014-04-02 2015-10-07 Caterpillar Inc. Apparatus and method for detecting urea deposit formation
JP2017040195A (en) * 2015-08-19 2017-02-23 株式会社デンソー Exhaust purification system control device

Also Published As

Publication number Publication date
CN109563754A (en) 2019-04-02
JP6705334B2 (en) 2020-06-03
WO2018030178A1 (en) 2018-02-15
CN109563754B (en) 2021-02-19
MY201140A (en) 2024-02-07
JP2018025156A (en) 2018-02-15

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