METHOD TO CONTROL AN EXHAUST GAS AFTER-TREATMENT SYSTEM FOR AN EXHAUST GAS SYSTEM OF AN INTERNAL COMBUSTION ENGINE

A method is disclosed to control an exhaust gas aftertreatment system (14) with at least one catalytic converter (15, 17) arranged along an exhaust duct (10) and a burner (21), which is suited to introduce exhaust gases into the exhaust duct (10), wherein inside the burner (21) there is defined a co...

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Bibliographische Detailangaben
Hauptverfasser:	CIALEO, Giuseppe, ZANOTTI, Massimo, GARAGNANI, Nicola, DE RITO, Valerio, DI MARTINO, Umberto
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING ENGINE PLANTS IN GENERAL GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING STEAM ENGINES WEAPONS
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Beschreibung
Zusammenfassung:	A method is disclosed to control an exhaust gas aftertreatment system (14) with at least one catalytic converter (15, 17) arranged along an exhaust duct (10) and a burner (21), which is suited to introduce exhaust gases into the exhaust duct (10), wherein inside the burner (21) there is defined a combustion chamber (22), which receives fresh air through an air feeding circuit (23) and fuel from an injector (27); the method comprises housing a temperature and pressure sensor (33, 34) interposed between a pumping device (24) and the burner (21) or leaving the burner (21); acquiring the pressure signal (P33) generated by the combustion inside the combustion chamber (22) and detected by said temperature and pressure sensor (33, 34); and controlling the combustion inside the combustion chamber (22) as a function of said pressure signal (P33).