Wärtsilä FAST upgrade
Unburnt fuel from the sac volume of a classical injector leads to incomplete combustion, which increases emissions and fuel consumption. This also forms increased combustion deposits in the exhaust gas system and piston running components, which may lead to extra maintenance costs for cleaning or component replacements.
The Fuel Activated Sacless Technology (FAST) reduces the amount of unburnt fuel and reduces fuel consumption. It improves the combustion quality significantly and lowers hydrocarbon and carbon monoxide emissions.
Service experience proves that the exhaust gas and piston running components of engines operated with FAST nozzles are considerably cleaner than those of other engines. FAST nozzles have been designed to reach longer lifetime than classical injection nozzles, and have lengthened the time between overhauls of up to 18.000 running hours.