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1. WO2022002948 - DEVICE AND METHOD FOR THE TREATMENT OF FLUE GASES FROM A TURBOCHARGED INTERNAL COMBUSTION ENGINE ON BOARD A MOTOR VEHICLE

Publication Number WO/2022/002948
Publication Date 06.01.2022
International Application No. PCT/EP2021/067865
International Filing Date 29.06.2021
IPC
F01N 3/20 2006.1
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
20specially adapted for catalytic conversion
F02D 41/14 2006.1
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
14Introducing closed-loop corrections
F01N 3/10 2006.1
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
F02B 37/00 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
37Engines characterised by provision of pumps driven at least for part of the time by exhaust
Applicants
  • PLASTIC OMNIUM ADVANCED INNOVATION AND RESEARCH [BE]/[BE]
Inventors
  • OP DE BEECK, Joel
  • DECAMP, Sébastien
  • PEUCAT, Frédéric
Agents
  • LLR
Priority Data
BE2020/548830.06.2020BE
Publication Language French (fr)
Filing Language French (FR)
Designated States
Title
(EN) DEVICE AND METHOD FOR THE TREATMENT OF FLUE GASES FROM A TURBOCHARGED INTERNAL COMBUSTION ENGINE ON BOARD A MOTOR VEHICLE
(FR) DISPOSITIF ET PROCÉDÉ DE TRAITEMENT DES GAZ BRÛLÉS D'UN MOTEUR THERMIQUE TURBOCOMPRESSÉ À COMBUSTION INTERNE À BORD D'UN VÉHICULE AUTOMOBILE
Abstract
(EN) The invention relates to the treatment of flue gases from a turbocharged internal combusiton engine, comprising: • determining a first pressure, P1, in a flue gas exhaust system (3) upstream of at least one turbocharger (30); • determining a second pressure, P2, in an injection line (22) for injecting a reducing agent; • controlling the pressurisation of the injection line when a pressure difference, P2 - P1, is less than a first reference value; • injecting the reducing agent upstream of a selective catalytic reduction catalyst (31) arranged upstream of the at least one turbocharger (30) in the exhaust system (3) only when the pressure difference, P2 - P1, is greater than or equal to a second reference value.
(FR) L'invention concerne le traitement des gaz brûlés d'un moteur thermique turbocompressé comprenant : • détermination d'une première pression, P 1, dans un système d'échappement des gaz brûlés (3) en amont d'au moins un turbocompresseur (30); • détermination d'une deuxième pression, P 2, dans une ligne d'injection (22) d'un agent réducteur; • commander la mise sous pression de la ligne d'injection lorsqu'une différence de pression, P 2 - P 1, est inférieure à une première valeur référence; • injecter de l'agent réducteur en amont d'un catalyseur à réduction catalytique sélective (31) agencé en amont du au moins un turbocompresseur (30) dans le système d'échappement (3) uniquement lorsque la différence de pression, P 2 - P 1, est supérieure ou égale à une deuxième valeur référence.
Latest bibliographic data on file with the International Bureau