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Wärtsilä 20DF - 2 Pages

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Catalogue excerpts

The Wärtsilä 20DF is a four-stroke 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. The 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. 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 31DF, 34DF, 46DF or 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. Wärtsilä DF -based engine room layout. Fuel flexibility Application flexibility Proven and reliable dual-fuel technology Long overhaul intervals Low exhaust gas emissions Low gas feed pressure Embed

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Rated power Genset dimensions (mm) and weights (tonnes) Engine type A* E    I*    K L* Weight Technology and Operation Advantages One of the main features of the proven dual-fuel technology is that the engine can be switched from fuel oil to gas operation or vice-versa. Transfer takes place automatically after the operator's command without power interruption or instantly in case of a gas supply interruption. Furthermore, the separate liquid fuel system makes it possible to switch over from MDO to HFO without power interruption. The fuel switch from liquid to gas operation mode can be made as...

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All Wärtsilä Corporation catalogues and brochures

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