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EP1730390A1 - Procede et dispositif ayant trait au regime de regeneration d'un filtre d'echappement - Google Patents

Procede et dispositif ayant trait au regime de regeneration d'un filtre d'echappement

Info

Publication number
EP1730390A1
EP1730390A1 EP05718046A EP05718046A EP1730390A1 EP 1730390 A1 EP1730390 A1 EP 1730390A1 EP 05718046 A EP05718046 A EP 05718046A EP 05718046 A EP05718046 A EP 05718046A EP 1730390 A1 EP1730390 A1 EP 1730390A1
Authority
EP
European Patent Office
Prior art keywords
fuel
exhaust
temperature
filter
fuel injection
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.)
Withdrawn
Application number
EP05718046A
Other languages
German (de)
English (en)
Inventor
Ian H. Pyroban Ltd RATCLIFF
John S. Pyroban Ltd PARKER
Nigel S. Pyroban Ltd TESTER
Marco Pyroban Ltd HOLT
Steve R. Pyroban Ltd NOAKES
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.)
Pyroban Ltd
Original Assignee
Pyroban 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
Priority claimed from GBGB0405897.0A external-priority patent/GB0405897D0/en
Priority claimed from GB0426060A external-priority patent/GB0426060D0/en
Application filed by Pyroban Ltd filed Critical Pyroban Ltd
Publication of EP1730390A1 publication Critical patent/EP1730390A1/fr
Withdrawn legal-status Critical Current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
    • F01N3/02—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
    • F01N3/023—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 using means for regenerating the filters, e.g. by burning trapped particles
    • F01N3/025—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 using means for regenerating the filters, e.g. by burning trapped particles using fuel burner or by adding fuel to exhaust
    • F01N3/0253—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 using means for regenerating the filters, e.g. by burning trapped particles using fuel burner or by adding fuel to exhaust adding fuel to exhaust gases
    • 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
    • F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
    • F01N11/002—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity the diagnostic devices measuring or estimating temperature or pressure in, or downstream of the exhaust 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
    • 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
    • F01N3/023—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 using means for regenerating the filters, e.g. by burning trapped particles
    • F01N3/027—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 using means for regenerating the filters, e.g. by burning trapped particles using electric or magnetic heating means
    • 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, e.g. catalysed diesel particulate 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
    • F01N3/08—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
    • F01N3/105—General auxiliary catalysts, e.g. upstream or downstream of the main catalyst
    • F01N3/106—Auxiliary oxidation 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
    • F01N9/00—Electrical control of exhaust gas treating apparatus
    • F01N9/002—Electrical control of exhaust gas treating apparatus of filter regeneration, e.g. detection of clogging
    • 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
    • F01N9/00—Electrical control of exhaust gas treating apparatus
    • F01N9/007—Storing data relevant to operation of exhaust systems for later retrieval and analysis, e.g. to research exhaust system malfunctions
    • 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
    • F01N2610/03—Adding substances to exhaust gases the substance being hydrocarbons, e.g. engine fuel
    • 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
    • F01N2900/04—Methods of control or diagnosing
    • F01N2900/0408—Methods of control or diagnosing using a feed-back loop
    • 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
    • F01N3/05—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 air, e.g. by mixing exhaust with air
    • 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
    • F01N3/2006—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating
    • F01N3/2033—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating using a fuel burner or introducing fuel into exhaust duct
    • 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
    • Y02T10/40—Engine management systems

Definitions

  • This period can be determined from a further look up table, for example calibrated upon development of the system or can be determined using a feed- back approach such as a PID (proportional/integral/derivative) control algorithm as a result of which the metering of fuel injection will be rapidly tailored to converge the temperature rate with the desired value.
  • the amount of fuel injection may be reduced for situations where the engine speed and load are high, thereby preventing unwanted pass through of fuel.
  • table 1 may vary in an additional dimension with engine speed and/or load.
  • the system continues to measure Tco and in block 302 monitors to establish whether the measured T C o has met the next set point (in the first instance 270°C from Table I).
  • FIG. 6 A further improvement is shown in figure 6 whereby an electrical heater 60 is located immediately before the front face 18 of the catalytic converter 18.
  • the main method of heat transfer from the heater 60 to the catalytic converter 18 is via radiation. This is more efficient than using the exhaust gas to transfer heat via convection, as a large amount of power is required to get significant temperature rise of the exhaust gas.
  • the invention can be applied to any appropriate engine or fuel type and that fuel injection can take place in any appropriate part of the exhaust stream.
  • the approaches as described above can be described to any appropriate temperature dependent exhaust treatment regime or other temperature raising mechanisms which rely on fuel injection.
  • the fuel injection can be metered by adjusting fuel alignment, fuel injection rate or fuel injection pulse duration, fuel injection pressure variation or fuel type variation.
  • control can be implemented using appropriate sensed parameters of operation of the engine and the exhaust stream components and using any appropriate sensors and injectors.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Processes For Solid Components From Exhaust (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

L'invention concerne un régime de régénération d'échappement dans lequel on régénère un filtre (20) en déclenchant une réaction exothermique dans le filtre (20) afin de brûler une charge particulaire. Pour atteindre les températures de régénération appropriées, un combustible est injecté dans le flux d'échappement et s'oxyde au contact d'un convertisseur catalytique (18). Le régime de commande comprend l'étape consistant à mesurer l'injection de combustible en fonction de la température du flux d'échappement pour obtenir un régime de commande souple, indépendant du cycle d'utilisation du moteur.
EP05718046A 2004-03-16 2005-03-16 Procede et dispositif ayant trait au regime de regeneration d'un filtre d'echappement Withdrawn EP1730390A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GBGB0405897.0A GB0405897D0 (en) 2004-03-16 2004-03-16 Exhaust filter regeneration regime method and apparatus
GB0426060A GB0426060D0 (en) 2004-11-26 2004-11-26 Engine filter regeneration regime method and apparatus
PCT/GB2005/000998 WO2005090759A1 (fr) 2004-03-16 2005-03-16 Procede et dispositif ayant trait au regime de regeneration d'un filtre d'echappement

Publications (1)

Publication Number Publication Date
EP1730390A1 true EP1730390A1 (fr) 2006-12-13

Family

ID=34962390

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05718046A Withdrawn EP1730390A1 (fr) 2004-03-16 2005-03-16 Procede et dispositif ayant trait au regime de regeneration d'un filtre d'echappement

Country Status (4)

Country Link
US (1) US20080000219A1 (fr)
EP (1) EP1730390A1 (fr)
JP (1) JP2007529678A (fr)
WO (1) WO2005090759A1 (fr)

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DE102004016538A1 (de) * 2004-03-31 2005-11-03 J. Eberspächer GmbH & Co. KG Regenerationsverfahren für ein Partikelfilter sowie Abgasanlage mit Partikelfilter
JP4404048B2 (ja) * 2005-12-28 2010-01-27 トヨタ自動車株式会社 内燃機関の排気浄化装置
FR2901307B1 (fr) * 2006-05-16 2011-08-19 Renault Sas Moteur a combustion interne avec filtre a particules et procede de regeneration d'un tel filtre a particules
KR100860505B1 (ko) * 2007-05-22 2008-09-26 한양대학교 산학협력단 매연저감유니트 및 이를 갖는 디젤연소장치
US8091337B2 (en) * 2008-02-29 2012-01-10 Corning Incorporated Exhaust treatment device having a reactive compound and conditioning the device via endothermic reaction
JP5081848B2 (ja) * 2008-05-15 2012-11-28 株式会社クボタ ディーゼルエンジンの排気装置
US9169765B2 (en) * 2008-07-14 2015-10-27 Westport Power Inc. Method for regenerating a diesel particulate filter
US8407985B2 (en) * 2009-07-28 2013-04-02 International Engine Intellectual Property Company, Llc Method of monitoring hydrocarbon levels in a diesel particulate filter
US8631647B2 (en) * 2010-01-21 2014-01-21 Westport Power Inc. System and method for regenerating an engine exhaust after-treatment device
US9334774B2 (en) * 2010-05-04 2016-05-10 GM Global Technology Operations LLC Control system and method for preventing hydrocarbon slip during particulate matter filter regeneration
JP5585225B2 (ja) * 2010-06-11 2014-09-10 いすゞ自動車株式会社 排ガス浄化システム
JP5585226B2 (ja) * 2010-06-11 2014-09-10 いすゞ自動車株式会社 排ガス浄化システム
CN102959188B (zh) * 2010-06-25 2015-03-18 日产自动车株式会社 柴油机的排气净化装置
JP5304738B2 (ja) * 2010-06-25 2013-10-02 日産自動車株式会社 ディーゼルエンジンの排気浄化装置
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US8460422B2 (en) * 2010-09-17 2013-06-11 Caterpillar Inc. Exhaust aftertreatment system, and engine service package having fuel filtering mechanism
DE102011081644A1 (de) * 2011-08-26 2013-02-28 Ford Global Technologies, Llc Emissionsreduzierte Abgasnachbehandlung
CA2874588A1 (fr) * 2012-06-13 2013-12-19 Mack Trucks, Inc. Procede de surveillance des composants dans un systeme de post-traitement des gaz d'echappement, systeme de post-traitement des gaz d'echappement et organe de commande destine a un systeme de post-traitement des gaz d'echappement
GB2536947A (en) 2015-04-01 2016-10-05 Gm Global Tech Operations Llc Method and system for diagnosing efficiency of an aftertreatment system of an internal combustion engine
US10371110B2 (en) * 2017-12-21 2019-08-06 Caterpillar Inc. Fuel injector having particulate-blocking perforation array

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Also Published As

Publication number Publication date
US20080000219A1 (en) 2008-01-03
JP2007529678A (ja) 2007-10-25
WO2005090759A1 (fr) 2005-09-29

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