Wärtsilä steps into small engine sector and adds new HYTug design

Malcolm Latarche
Malcolm Latarche

30 November 2018

Finnish technology group Wärtsilä has stepped into the small engine sector with the announcement of its first high-speed engine the Wärtsilä 14.

The International Workboat Show in New Orleans, USA, was the venue of the official unveiling of the Wärtsilä 14: a high-speed, compact engine designed to fit requirements for limited space and weight, lower capital expense, to meet current and future global emissions regulations, and to provide customers with improved efficiency, safety, and environmental sustainability. This new engine fosters Wärtsilä’s Smart Marine vision as the brand continues to offer customers increasingly wider options for meeting specific operational needs.

Tug Wartsila

Wärtsilä’s naming method would suggest a 140mm bore for the new engine range but in fact the bore is just 135mm and the stroke 157mm. Until now the company’s smallest engine was the Wärtsilä 20 range. Operating range for the two models announced is between 1,500rpm to 1,900rpm.

Highly versatile and engineered to support a wide range of applications within marine and offshore markets, the Wärtsilä 14 can serve as main propulsion or auxiliary genset and is ideal for hybrid installations. It is available in 12- and 16-cylinder configurations, delivering a power output of 755-1340 KW in mechanical propulsion, and 675-1155 KWe in auxiliary and diesel-electric configurations.

To meet IMO Tier III NOx requirements the Wärtsilä 14 is supplied with the Wärtsilä NOX reducer (Wärtsilä NOR), an emissions after-treatment system based on selective catalytic reduction.

The company is targeting vessels where power to weight ratio, fuel-type, efficiency, safety and environmental compliance are key considerations. Examples of such operating profiles include tugs, fishing vessels, offshore service vessels, small ferries and the merchant auxiliary market.

The engine was developed in collaboration with Liebherr, a leading manufacturer of machinery and components. The two companies have agreed to cooperate on a long-term basis in the research and development of highspeed engines for maritime and offshore applications, and post R&D exploitation of the results of the parties’ R&D efforts.

First deliveries of the Wärtsilä 14 are planned for the latter part of 2019. Liebherr will be responsible for product development, classification and manufacturing of the engines. The new engine type will be backed by Wärtsilä’s global lifecycle support and services network.

“We are very proud of this small but mighty high-speed engine,” states Stefan Wiik, Vice President, Marine Power Solutions, Wärtsilä, “because it heralds entry into a new, strategically important market for our brand, it reinforces our global position as leader of fully integrated technologies and hybrid solutions and bears testimony to the tangible benefits of our close cooperation with Liebherr”.

Simultaneous with the launch of the new engine, Wärtsilä announced the introduction of its HYTug 40 design and concept. This is a smaller version of the HYTug launched in 2017 and designed for shallow draft operation, this evolution features two Wärtsilä 14 engines along with a hybrid propulsion solution which deliver various flexible operating settings, including a zero-emissions mode.