Wärtsilä 6L20

The Wärtsilä 20 is a 4-stroke, non-reversible, turbocharged and intercooled diesel engine with direct injection of fuel.

Cylinder bore             200 mm
Stroke                       280 mm
Piston displacement    8.8 l/cyl
Number of valves       2 inlet valves and 2 exhaust valves
Cylinder configuration  6 in-line
Mean piston speed       9,3  m/s   

The Wärtsilä 20 is able to operate on different fuels, from the lowest viscosity of 1.8 cSt up to 730 cSt HFO (at 50 °C).

The engine is also able to use low sulphur fuel oils (<0.1% S) set as standard by emission control area authorities.