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1. WO1996003571 - METHOD OF AUTOMATICALLY INITIATING REGENERATION OF A PARTICULATE FILTER OF A DIESEL ENGINE WITH A RAIL INJECTION SYSTEM

Publication Number WO/1996/003571
Publication Date 08.02.1996
International Application No. PCT/IT1995/000124
International Filing Date 21.07.1995
Chapter 2 Demand Filed 20.02.1996
IPC
F01N 3/023 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
3Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
02for cooling, or for removing solid constituents of, exhaust
021by means of filters
023using means for regenerating the filters, e.g. by burning trapped particles
F01N 3/025 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
3Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
02for cooling, or for removing solid constituents of, exhaust
021by means of filters
023using means for regenerating the filters, e.g. by burning trapped particles
025using fuel burner or by adding fuel to exhaust
F02B 3/06 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
3Engines characterised by air compression and subsequent fuel addition
06with compression ignition
F02D 41/02 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
41Electrical control of supply of combustible mixture or its constituents
02Circuit arrangements for generating control signals
F02D 41/38 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
41Electrical control of supply of combustible mixture or its constituents
30Controlling fuel injection
38of the high pressure type
F02D 41/40 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
41Electrical control of supply of combustible mixture or its constituents
30Controlling fuel injection
38of the high pressure type
40with means for controlling injection timing or duration
CPC
F01N 3/023
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
3Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
02for cooling, or for removing solid constituents of, exhaust
021by means of filters
023using means for regenerating the filters, e.g. by burning trapped particles
F01N 3/0253
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
3Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
02for cooling, or for removing solid constituents of, exhaust
021by means of filters
023using means for regenerating the filters, e.g. by burning trapped particles
025using fuel burner or by adding fuel to exhaust
0253adding fuel to exhaust gases
F02B 3/06
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
3Engines characterised by air compression and subsequent fuel addition
06with compression ignition
F02D 41/029
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
41Electrical control of supply of combustible mixture or its constituents
02Circuit arrangements for generating control signals
021Introducing corrections for particular conditions exterior to the engine
0235in relation with the state of the exhaust gas treating apparatus
027to purge or regenerate the exhaust gas treating apparatus
029the exhaust gas treating apparatus being a particulate filter
F02D 41/3827
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
41Electrical control of supply of combustible mixture or its constituents
30Controlling fuel injection
38of the high pressure type
3809Common rail control systems
3827for diesel engines
F02D 41/401
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
41Electrical control of supply of combustible mixture or its constituents
30Controlling fuel injection
38of the high pressure type
40with means for controlling injection timing or duration
401Controlling injection timing
Applicants
  • C.R.F. SOCIETA' CONSORTILE PER AZIONI [IT/IT]; Strada Torino, 50 I-10043 Orbassano, IT (AllExceptUS)
  • ROSSI SEBASTIANO, Giovanni, Maria [IT/IT]; IT (UsOnly)
  • CANALE, Silvio [IT/IT]; IT (UsOnly)
Inventors
  • ROSSI SEBASTIANO, Giovanni, Maria; IT
  • CANALE, Silvio; IT
Agents
  • JORIO, Paolo ; Studio Torta Via Viotti, 9 I-10121 Torino, IT
Priority Data
TO94A00060622.07.1994IT
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD OF AUTOMATICALLY INITIATING REGENERATION OF A PARTICULATE FILTER OF A DIESEL ENGINE WITH A RAIL INJECTION SYSTEM
(FR) PROCEDE D'AMORÇAGE AUTOMATIQUE DE LA REGENERATION D'UN FILTRE A PARTICULES DANS UN MOTEUR DIESEL A SYSTEME D'INJECTION A RAIL
Abstract
(EN)
An automatic regeneration initiating method presenting, in addition to the main injection phase, an auxiliary post-injection phase for injecting a given quantity of fuel directly into the cylinders during the expansion stroke when the temperature in the combustion chamber is still high enough for its combustion, so as to increase the temperature of the exhaust gas and initiate combustion of the filtered particulate. By appropriately regulating the amount of fuel injected and the timing of the post-injection phase, incomplete combustion products are formed for assisting combustion of the dry particulate and lowering its ignition temperature.
(FR)
Procédé d'amorçage automatique de régénération, comportant, en plus de la phase d'injection principale, une phase de post-injection auxiliaire dans laquelle une quantité donnée de carburant est injectée directement dans les cylindres au cours de la course de détente lorsque la température dans la chambre de combustion est encore suffisamment élevée pour en permettre la combustion, afin d'augmenter la température du gaz d'échappement et d'amorcer la combustion des particules filtrées. Une régulation appropriée de la quantité de carburant injectée et de l'instant où se produit la phase de post-injection permet la formation de produits dont la combustion demeure inachevée et qui favorisent la combustion des particules sèches et réduisent sa température d'allumage.
Also published as
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