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Press Release

Wärtsilä introduces latest addition to its RT-flex48T engine portfolio

The new engine is designed to power small bulk and tanker vessels. The flex common-rail technology lowers emissions and fuel consumption.

Wärtsilä, the marine industry's leading solutions provider, successfully started up its new 6-cylinder Wärtsilä RT-flex48T engine on 24 November 2011 at the facilities of Wärtsilä licensee QMD (Qingdao Qiyao Wärtsilä MHI Linshan Marine Diesel Co Ltd.) in China. This new engine is the result of further development of the existing Wärtsilä RTA48T engine. With the introduction of this new engine, Wärtsilä completes its work in adapting its range of low-speed RT-flex engines for all bore sizes. The engine type is also available in other cylinder configurations.

The Wärtsilä RT-flex48T is designed to power small bulk and tanker vessels, including the Handysize and Handymax range. With the implementation of the RT-flex common-rail technology, the conventional and well-known RTA48T engine has been upgraded to feature electronically controlled fuel injection, and exhaust valve activation for greatly reduced emissions and fuel consumption. One great advantage is its smokeless operation at all engine load levels.

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The new Wärtsilä RT-flex48T engine

"We are extremely pleased to add the Wärtsilä RT-flex48T engine to our portfolio of common-rail low-speed engines. We now have this industry-leading technology available for all bore sizes in our current low-speed engine portfolio," says Mr Martin Wernli, President, Wärtsilä Switzerland and Vice President, Product Centre 2-stroke.

The key features of the Wärtsilä RT-flex common-rail system are the precise control of fuel injection, and the high injection pressure at all speeds which together give steady running. The electronically controlled exhaust valve opening/closing allows the best engine tuning for each individual engine rating.

To further develop the common rail version of the RTA48T engine, the rail unit and supply unit were taken from the well-known and successful RT-flex50 type engine. It consists of one common rail pipe for fuel injection and another common rail pipe for the system oil driving the exhaust valves. Both are integrated within the rail unit where all pipe works and components are easily accessible from above. The rail unit is located just below the cylinder covers along the complete engine length.

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For further information please contact:
Mr Martin Wernli
President, Wärtsilä Switzerland,
Vice President, Product Centre 2-stroke
Tel: +41 52 262 2686
martin.wernli@wartsila.com  

Ms Anna-Leena Pohjanpalo
Media Officer, Media and Stakeholder Relations
Wärtsilä Corporation
Tel. +358 10 7095627
anna-leena.pohjanpalo@wartsila.com


2011-12-01

Please see Wärtsilä Corporation /Wärtsilä Vostok, LLC (WRU)/ company electronic office

For more information, please contact:
Mirja-Maija Santala
Media Manager
Wärtsilä Corporation
Tel. +358 (0)400 793 827
E-mail: mirja-maija.santala@wartsila.com 

Wärtsilä Vostok, LLC (WRU)
Tel/Fax: +7 812 448-32-48
E-mail:
office.spb@wartsila.com  

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