[go: up one dir, main page]

IN2015DN00671A - - Google Patents

Download PDF

Info

Publication number
IN2015DN00671A
IN2015DN00671A IN671DEN2015A IN2015DN00671A IN 2015DN00671 A IN2015DN00671 A IN 2015DN00671A IN 671DEN2015 A IN671DEN2015 A IN 671DEN2015A IN 2015DN00671 A IN2015DN00671 A IN 2015DN00671A
Authority
IN
India
Prior art keywords
fuel ratio
air fuel
engine
combustion chamber
operation area
Prior art date
Application number
Inventor
Yuki Bisaiji
Kohei Yoshida
Kenji Sakurai
Kohki Nakamura
Original Assignee
Toyota Motor Co 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 Toyota Motor Co Ltd filed Critical Toyota Motor Co Ltd
Publication of IN2015DN00671A publication Critical patent/IN2015DN00671A/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/021—Introducing corrections for particular conditions exterior to the engine
    • F02D41/0235—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus
    • F02D41/027—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to purge or regenerate the exhaust gas treating apparatus
    • F02D41/0275—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to purge or regenerate the exhaust gas treating apparatus the exhaust gas treating apparatus being a NOx trap or adsorbent
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
    • F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
    • F02D41/146—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an NOx content or concentration
    • F02D41/1461—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an NOx content or concentration of the exhaust gases emitted by the engine
    • 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
    • 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
    • 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]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
    • F02D41/1473—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the regulation method
    • F02D41/1475—Regulating the air fuel ratio at a value other than stoichiometry
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/14—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the exhaust system
    • F02M26/15—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the exhaust system in relation to engine exhaust purifying 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
    • F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
    • F01N2900/06—Parameters used for exhaust control or diagnosing
    • F01N2900/16—Parameters used for exhaust control or diagnosing said parameters being related to the exhaust apparatus, e.g. particulate filter or catalyst
    • F01N2900/1614—NOx amount trapped in 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
    • 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
    • F01N3/0828—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents characterised by the absorbed or adsorbed substances
    • F01N3/0842—Nitrogen oxides
    • 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
    • F01N3/101—Three-way catalysts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2250/00—Engine control related to specific problems or objectives
    • F02D2250/36—Control for minimising NOx emissions
    • 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)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Materials Engineering (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

According to the present invention a ternary catalyst (20) and an NO storage catalyst (22) are disposed in an engine exhaust passage. In a pre established low load operation area of the engine combustion is performed with a lean base air fuel ratio in a combustion chamber (5) and a rich air fuel ratio is used in the combustion chamber (5) when NO is to be emitted from the NO storage catalyst (22). In a pre established high load operation area of the engine feedback control is performed to bring the air fuel ratio in the combustion chamber (5) to a theoretical air fuel ratio. In a pre established medium load operation area of the engine combustion is performed in the combustion chamber (5) with a lower base air fuel ratio than the base air fuel ratio in the low load operation area of the engine and a richer air fuel ratio is used in the combustion chamber (5) with a shorter cycle than the rich air fuel ratio cycle for NO emission in the low load operation area of the engine.
IN671DEN2015 2012-07-27 2012-07-27 IN2015DN00671A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2012/069218 WO2014016965A1 (en) 2012-07-27 2012-07-27 Exhaust purification device of internal combustion engine

Publications (1)

Publication Number Publication Date
IN2015DN00671A true IN2015DN00671A (en) 2015-06-26

Family

ID=49996798

Family Applications (1)

Application Number Title Priority Date Filing Date
IN671DEN2015 IN2015DN00671A (en) 2012-07-27 2012-07-27

Country Status (11)

Country Link
US (1) US9845756B2 (en)
EP (1) EP2878778B1 (en)
JP (1) JP5835488B2 (en)
KR (1) KR101615866B1 (en)
CN (1) CN104508265B (en)
BR (1) BR112015001870A2 (en)
CA (1) CA2879957C (en)
ES (1) ES2731523T3 (en)
IN (1) IN2015DN00671A (en)
RU (1) RU2592945C1 (en)
WO (1) WO2014016965A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5748005B2 (en) 2013-02-20 2015-07-15 トヨタ自動車株式会社 Exhaust gas purification device for internal combustion engine
US10190457B2 (en) * 2016-07-22 2019-01-29 Toyota Jidosha Kabushiki Kaisha Exhaust gas purification apparatus for an internal combustion engine
JP6435369B2 (en) * 2017-04-26 2018-12-05 株式会社キャタラー Exhaust gas purification system and automatic propulsion vehicle
JP2020029841A (en) * 2018-08-24 2020-02-27 トヨタ自動車株式会社 Exhaust gas purification device and exhaust gas purification method for internal combustion engine

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3633295B2 (en) * 1998-07-22 2005-03-30 トヨタ自動車株式会社 Exhaust gas purification device for lean combustion internal combustion engine
JP3104692B2 (en) * 1998-11-13 2000-10-30 トヨタ自動車株式会社 Internal combustion engine
JP3854013B2 (en) * 1999-06-10 2006-12-06 三菱電機株式会社 Exhaust gas purification device for internal combustion engine
JP3858554B2 (en) * 2000-02-23 2006-12-13 株式会社日立製作所 Engine exhaust purification system
US6499293B1 (en) * 2000-03-17 2002-12-31 Ford Global Technologies, Inc. Method and system for reducing NOx tailpipe emissions of a lean-burn internal combustion engine
JP3733834B2 (en) * 2000-05-02 2006-01-11 日産自動車株式会社 Exhaust gas purification device for internal combustion engine
JP3617450B2 (en) * 2000-12-20 2005-02-02 トヨタ自動車株式会社 Exhaust gas purification device for internal combustion engine
JP3512010B2 (en) * 2001-02-06 2004-03-29 トヨタ自動車株式会社 Control device for in-cylinder injection internal combustion engine
JP2002364415A (en) * 2001-06-07 2002-12-18 Mazda Motor Corp Exhaust emission control device for engine
US7082753B2 (en) * 2001-12-03 2006-08-01 Catalytica Energy Systems, Inc. System and methods for improved emission control of internal combustion engines using pulsed fuel flow
JP3828425B2 (en) * 2002-01-08 2006-10-04 三菱電機株式会社 Exhaust gas purification method for internal combustion engine
JP2004068700A (en) 2002-08-06 2004-03-04 Toyota Motor Corp Exhaust gas purification method
US7043901B2 (en) 2003-03-20 2006-05-16 Ford Global Technologies, Llc Device and method for internal combustion engine control
KR100662313B1 (en) * 2003-12-01 2006-12-28 도요다 지도샤 가부시끼가이샤 Exhaust emission purification apparatus of compression ignition internal combustion engine
JP4572709B2 (en) * 2005-03-18 2010-11-04 トヨタ自動車株式会社 Exhaust gas purification system for internal combustion engine
JP4666386B2 (en) 2006-07-14 2011-04-06 本田技研工業株式会社 Control device for internal combustion engine
JP2008069740A (en) 2006-09-15 2008-03-27 Toyota Motor Corp Internal combustion engine
JP2008163775A (en) 2006-12-27 2008-07-17 Toyota Motor Corp Exhaust purification device
JP4997177B2 (en) * 2008-06-09 2012-08-08 本田技研工業株式会社 Exhaust gas purification device for internal combustion engine
WO2010146718A1 (en) * 2009-06-15 2010-12-23 トヨタ自動車株式会社 Exhaust emission control device for internal combustion engine
CN102667082B (en) * 2009-11-18 2014-09-24 丰田自动车株式会社 Exhaust emission purification system for internal combustion engine
CA2755977C (en) 2010-03-15 2014-01-21 Toyota Jidosha Kabushiki Kaisha Exhaust purification system of internal combustion engine
KR101383422B1 (en) 2010-03-15 2014-04-08 도요타지도샤가부시키가이샤 Exhaust purification system of internal combustion engine
WO2014024311A1 (en) 2012-08-10 2014-02-13 トヨタ自動車株式会社 Exhaust purification device of spark ignition internal combustion engine

Also Published As

Publication number Publication date
US9845756B2 (en) 2017-12-19
WO2014016965A1 (en) 2014-01-30
EP2878778B1 (en) 2019-05-22
JP5835488B2 (en) 2015-12-24
EP2878778A1 (en) 2015-06-03
CN104508265A (en) 2015-04-08
ES2731523T3 (en) 2019-11-15
BR112015001870A2 (en) 2017-07-04
KR20150023855A (en) 2015-03-05
KR101615866B1 (en) 2016-04-26
CA2879957A1 (en) 2014-01-30
RU2592945C1 (en) 2016-07-27
CA2879957C (en) 2017-02-14
EP2878778A4 (en) 2015-08-05
US20150176514A1 (en) 2015-06-25
JPWO2014016965A1 (en) 2016-07-07
CN104508265B (en) 2016-10-12

Similar Documents

Publication Publication Date Title
IN2014CN00536A (en)
WO2014008309A3 (en) Variable compression ratio diesel engine
ES2502315T3 (en) Method for the protection of SCR catalysts and method for controlling emissions containing phosphorus compounds
MX355239B (en) Post fuel injection of gaseous fuel to reduce exhaust emissions.
RU2014123941A (en) METHOD FOR OPERATING ENGINE WITH EXHAUST GAS RECIRCULATION SYSTEM
RU2014117203A (en) METHOD FOR TURBOCHARGED ENGINE (OPTIONS)
MX2015009338A (en) Device and method for controlling variable compression ratio internal combustion engine.
RU2014137670A (en) SYSTEMS AND METHODS FOR GAS FUEL INJECTION DURING THE RELEASE TACT TO REDUCE THE DELAY OF A TURBOCHARGER
JP2012057470A5 (en)
JP2015522122A5 (en)
IN2015DN00671A (en)
Venkateswarlu et al. The effect of exhaust gas recirculation and di-tertiary butyl peroxide on diesel-biodiesel blends for performance and emission studies
Liu et al. Experimental study on the spray and combustion characteristics of SIDI CNG
WO2014145955A3 (en) Low-compression oxyhydrogen combustion engine systems, methods, and components
EP2792863A8 (en) Exhaust purification device of internal combustion engine
WO2011153970A2 (en) Method to reduce emissions of nitrogen oxides from combustion engines and/or to increase the performance of combustion engines while keeping the emissions of nitrogen oxides from combustion engines at the same level and/or to increase the overall performance of an engine, and a device to perform this method
MY182863A (en) Emission control system and emission control method for internal combustion engine
TR201002685A2 (en) H.B.Ö. engine
CZ25132U1 (en) Device for reducing nitrogen oxide emissions of internal combustion engines and/or increasing power of internal combustion engines while maintaining nitrogen oxide emissions of internal combustion engines and/or increasing total efficiency of engine
JP2015175311A (en) Dual fuel engine
Sekaran et al. Emission and combustion characteristics of different fuel in a HCCI engine
KR101290775B1 (en) Method for controlling combustion processes of the hydrogen engine
IN2015MU03388A (en)
WO2016005426A1 (en) System and method for controlled combustion reactions
TR201105191A2 (en) Easy to manufacture, high efficiency internal combustion engine.