Exhaust system for a dual fuel engine

An exhaust system for a dual fuel engine, which engine is adapted to operate in a first mode in which the engine is fuelled entirely by a liquid fuel, and a second mode in which the engine is fuelled predominately by a gaseous fuel, the system comprising a first oxidation catalyst 22, a first temper...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	DARRYL WILLIAM HYLANDS, TREVOR LEE FLETCHER
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING COMBUSTION ENGINES CONTROLLING COMBUSTION ENGINES 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 HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING STEAM ENGINES WEAPONS
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Beschreibung
Zusammenfassung:	An exhaust system for a dual fuel engine, which engine is adapted to operate in a first mode in which the engine is fuelled entirely by a liquid fuel, and a second mode in which the engine is fuelled predominately by a gaseous fuel, the system comprising a first oxidation catalyst 22, a first temperature sensor 30 adapted to measure a core temperature of the first oxidation catalyst, and a controller 32 for controlling whether the engine operates in the first mode or the second mode, wherein the first temperature sensor is operatively connectable to the controller such that the controller prevents the engine from running in the second mode if the core temperature of the first oxidation catalyst is below a predetermined temperature. The system may also comprise a second oxidation catalyst 24 and an SCR system 28. An engine system, a catalyst assembly and a method for controlling operation of an engine is also claimed.