More powerful version of Wärtsilä 20 engine introduced

PHOTO: The more powerful Wärtsilä 20 engine features and increased cylinder output of 220kW.

The technology group Wärtsilä is launching an upgraded, more powerful version of its well established Wärtsilä 20 diesel engine. This new development features an increased cylinder output of 220kW that will increase the engine’s power density, thereby enabling vessels to accommodate greater payloads or achieve faster speeds with almost the same low fuel consumption as the current version. The increased maximum output will also improve the bollard pull capacity for tugs and support vessels.

Detail image of Auxpac 1000W6L20 inside factory

The technology group Wärtsilä is launching an upgraded, more powerful version of its well established Wärtsilä 20 diesel engine. This new development features an increased cylinder output of 220kW that will increase the engine’s power density, thereby enabling vessels to accommodate greater payloads or achieve faster speeds with almost the same low fuel consumption as the current version. The increased maximum output will also improve the bollard pull capacity for tugs and support vessels.

By increasing the output per cylinder from 185kW to 220kW, it follows that fewer cylinders will be needed when installed in 60Hz generating sets. This means that a lighter and more compact generating set is possible within the 1.3 to 2 MW merchant auxiliary segment.

”The new Wärtsilä 20 engine has the best power-to-weight ratio on the market in its segment. This provides an exciting value proposition for owners of ships where a light yet powerful engine is an advantage,” says Stefan Wiik, Vice President, Engines, Wärtsilä Marine Solutions.

Since the new engine is a refinement of the existing Wärtsilä 20 engine, there is a high level of compatibility with the spare parts needed. The maintenance procedures are also for the most part unchanged.

The Wärtsilä 20 has proven its robustness and reliability with more than 6000 engines delivered since its introduction to the market in the early 1990s. The engine can switch from MDO to HFO and vice versa without power interruption at any engine operation load. The engine is fully compliant with the IMO Tier II exhaust emissions regulations set out in Annex VI of the MARPOL 73/78 convention. IMO Tier III compliance is available, as an option, together with the Wärtsilä NOR SCR system. The engine is a popular choice for a wide range of applications including merchant ships, special vessels, and offshore applications.  The upgraded Wärtsilä 20 is also included in the newly introduced Wärtsilä HYTug series featuring integrated energy storage and power management systems.

The new Wärtsilä 20 engine will be officially launched at the Marintec conference and exhibition to be held in Shanghai, China from December 5 to 8.

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