The Wärtsilä 20DF is a medium-speed dual fuel engine that can be run on natural gas, marine diesel oil (MDO) or heavy fuel oil (HFO). The engine can switch over from gas to MDO/HFO and vice versa smoothly during engine operation without power interruption.
Wärtsilä 20DF design is based on the well proven and reliable Wärtsilä 20 diesel engine which was introduced on the market in the early 1990s. The new Wärtsilä 20DF completes the lower power range in the dual fuel Wärtsilä engine family.
APPLICATION FLEXIBILITY
Wärtsilä 20DF is suitable for a wide range of applications. Thanks to fuel flexibility the engine can be installed and optimised for constant speed generating sets as well as variable speed mechanical drives for main engine applications.
The multi-fuel operation capability offers new machinery opportunities for various vessel applications. The Wärtsilä 20DF can be installed to complete the multi-fuel engine room concept as generating set next to Wärtsilä 34DF or Wärtsilä 50DF main propulsion machinery. Typical installation examples are RoPax or LNG carriers.
The compact and light Wärtsilä 20DF fits perfectly also as mechanical drive prime mover for smaller applications, such as small cargo vessels, ferries or tug boat installations.
Wärtsilä 20DF is also optimal for harbour genset application for a wide range of vessel types.
