The new Wärtsilä 50DF applies the sophisticated tri-fuel technology incorporated in the reliable and well-tried Wärtsilä 46 HFO engine. It can be run either on natural gas or on light fuel oil (LFO) or on heavy fuel oil (HFO). The engine can smoothly switch between fuels during engine operation and is designed to give the same output regardless of the fuel.

The engine operates on the lean-burn principle. Lean combustion enables high compression ratio which increases engine efficiency and reduces peak temperatures, and therefore also reduces NOx emissions.

Both the gas admission and pilot fuel injection are electronically controlled. The engine functions are controlled by an advanced automation system that allows optimum running conditions to be set independent of the ambient conditions or fuel.

Wärtsilä 50DF core values:
-High reliability
-High efficiency
-Fuel flexibility
-Low emission rates