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1. WO2020069551 - METHOD AND PETROL ENGINE ARRANGEMENT HAVING IMPROVED EXHAUST GAS AFTERTREATMENT USING A REGENERATION STRATEGY

Publication Number WO/2020/069551
Publication Date 09.04.2020
International Application No. PCT/AT2019/060331
International Filing Date 04.10.2019
IPC
F01N 3/029 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
029by adding non-fuel substances to exhaust
F01N 3/10 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
08for rendering innocuous
10by thermal or catalytic conversion of noxious components of exhaust
F01N 3/22 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
08for rendering innocuous
10by thermal or catalytic conversion of noxious components of exhaust
18characterised by methods of operation; Control
22Control of additional air supply only, e.g. using by-passes or variable air pump drives
F01N 3/30 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
08for rendering innocuous
10by thermal or catalytic conversion of noxious components of exhaust
24characterised by constructional aspects of converting apparatus
30Arrangements for supply of additional air
F01N 9/00 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
9Electrical control of exhaust gas treating apparatus
F01N 13/00 2010.01
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
13Exhaust or silencing apparatus characterised by constructional features
CPC
F01N 13/009
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
13Exhaust or silencing apparatus characterised by constructional features ; ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
009having two or more separate purifying devices arranged in series
F01N 2430/06
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
2430Influencing exhaust purification, e.g. starting of catalytic reaction, filter regeneration, or the like, by controlling engine operating characteristics
06by varying fuel-air ratio, e.g. by enriching fuel-air mixture
F01N 2560/025
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
2560Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
02the means being an exhaust gas sensor
025for measuring or detecting O2, e.g. lambda sensors
F01N 2900/1402
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
2900Details of electrical control or of the monitoring of the exhaust gas treating apparatus
06Parameters used for exhaust control or diagnosing
14said parameters being related to the exhaust gas
1402Exhaust gas composition
F01N 2900/1606
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
2900Details of electrical control or of the monitoring of the exhaust gas treating apparatus
06Parameters used for exhaust control or diagnosing
16said parameters being related to the exhaust apparatus, e.g. particulate filter or catalyst
1606Particle filter loading or soot amount
F01N 3/0233
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
0233periodically cleaning filter by blowing a gas through the filter in a direction opposite to exhaust flow, e.g. exposing filter to engine air intake
Applicants
  • AVL LIST GMBH [AT]/[AT]
Inventors
  • GÖTSCHL, Peter
  • PREVEDEL, Kurt
  • BERGER, Peter
  • KAPUS, Paul
  • KOLLER, Gernot
Agents
  • WIETZKE, Andreas
Priority Data
A50857/201805.10.2018AT
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) VERFAHREN UND OTTOMOTORANORDNUNG MIT EINER VERBESSERTEN ABGASNACHBEHANDLUNG DURCH EINE REGENERATIONSSTRATEGIE
(EN) METHOD AND PETROL ENGINE ARRANGEMENT HAVING IMPROVED EXHAUST GAS AFTERTREATMENT USING A REGENERATION STRATEGY
(FR) PROCÉDÉ ET SYSTÈME DE MOTEUR À ALLUMAGE COMMANDÉ À POST-TRAITEMENT AMÉLIORÉ DES GAZ D’ÉCHAPPEMENT PAR UNE STRATÉGIE DE RÉGÉNÉRATION
Abstract
(DE)
Ein Verfahren und eine Ottomotoranordnung, wobei die Ottomotoranordnung einen Ottomotor (1) und eine Abgasnachbehandlungsanlage (2) umfasst, wobei die Abgasnachbehandlungsanlage (2) zumindest einen Hauptkatalysator (3) und einen dem Hauptkatalysator (3) nachgeordneten, unter Verwendung von Sauerstoff und/oder Stickstoffdioxid regenerierbaren Ottomotorpartikelfilter (4) umfasst, wobei in einer Normalbetriebsphase im Ottomotor (1) Treibstoff und Luft zu einem Abgas umgesetzt werden, wobei in einem Regenerationsbetrieb über eine in die Abgasnachbehandlungsanlage (2) mündende Zuführungsleitung (14) vor dem Ottomotorpartikelfilter (4) und nach dem Hauptkatalysator (3) Sauerstoff und insbesondere Luft, vorzugsweise gefilterte Umgebungsluft, zur Regeneration des Ottomotorpartikelfilters (4) zugeführt wird, wobei der Sauerstoffgehalt des den Hauptkatalysator (3) durchströmenden Abgases oder des im Hauptkatalysator (3) befindlichen Abgases im Regenerationsbetrieb kleiner ist als 5 Vol.-% oder im Wesentlichen null ist, und/ oder wobei die im Regenerationsbetrieb den Hauptkatalysator (3) durchströmende Sauerstoffmenge des Abgases oder die Sauerstoffmenge des im Hauptkatalysator (3) befindlichen Abgases so gering gehalten wird, dass der Wirkungsgrad des Hauptkatalysators (3) unbeeinflusst ist.
(EN)
The invention relates to a method and a petrol engine arrangement, wherein: the petrol engine arrangement comprises a petrol engine (1) and an exhaust gas aftertreatment system (2); the exhaust gas aftertreatment system (2) comprises at least one main catalytic converter (3) and a petrol engine particulate filter (4) which is arranged downstream of the main catalytic converter (3) and can be regenerated using oxygen and/or nitrogen dioxide; fuel and air are reacted to produce an exhaust gas in the petrol engine (1) in a normal operating phase; in a regeneration mode, oxygen and in particular air, preferably filtered ambient air, is supplied via a supply line (14) leading into the exhaust gas aftertreatment system (2) upstream of the petrol engine particulate filter (4) and downstream of the main catalytic converter (3) in order to regenerate the petrol engine particulate filter (4); the oxygen content of the exhaust gas flowing through the main catalytic converter (3) or of the exhaust gas located in the main catalytic converter (3) in the regeneration mode is less than 5 vol.% or is essentially zero, and/or the amount of oxygen in the exhaust gas flowing through the main catalytic converter (3) in the regeneration mode or the amount of oxygen in the exhaust gas located in the main catalytic converter (3) is kept so low that the efficiency of the main catalytic converter (3) is unaffected.
(FR)
L’invention concerne un procédé et un système de moteur à allumage commandé, le système de moteur allumage commandé (1) comprenant un moteur à allumage commandé (1) et une installation de post-traitement des gaz d’échappement (2), ladite installation de post-traitement des gaz d’échappement (2) comportant au moins un catalyseur principal (3) et un filtre à particules de moteur à allumage commandé (4) pouvant être régénéré au moyen d’oxygène et/ou d’oxyde d’azote, monté en aval du catalyseur principal (3), dans une phase de fonctionnement normal, du carburant et de l’air étant convertis en gaz d’échappement dans le moteur à allumage commandé, dans un mode de régénération, de l’oxygène et en particulier de l’air, de préférence de l’air ambiant filtré, étant acheminé pour assurer la régénération du filtre à particules du moteur à allumage commandé (4), avant le filtre à particules du moteur à allumage commandé (4) et après le catalyseur principal (3), par l’intermédiaire d’une conduite d’alimentation (14) débouchant dans l’installation de retraitement des gaz d’échappement (2), la teneur en oxygène des gaz d’échappement qui traversent le catalyseur principal (3) ou sont présents dans le catalyseur principal (3) étant inférieure à 5% en volume ou sensiblement égale à zéro en mode de régénération, et/ou la quantité d’oxygène des gaz d’échappement qui traversent le catalyseur principal (3) étant maintenue à un niveau suffisamment bas, en mode de régénération, pour que le rendement du catalyseur principal (3) demeure inchangé.
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