International Maritime Organization (IMO) and RT-flex engine

International Maritime Organization (IMO) will tighten gradually the regulation for NOx emission, the second regulation in 2011 and the third regulation in 2016. It is essential for marine engines to meet the regulation with minimum trade-off against fuel economy.
In this circumstance, as a licensee of Wartsila, DU is producing and servicing RT-flex electronically-controlled ecological engines compatible with the IMO regulation.

Fuel economical and ecological RT-flex engine

In the RT-flex electronically-controlled engine, the common rail fuel injection system is adopted. This engine realizes to meet the NOx regulation with low fuel consumption, smokeless engine operation and smooth running in low revolution speed.
Furthermore, it makes possible to optimize the engine tuning to fit the ship’s operational condition resulting to contribute largely in fuel consumption at partial load compared with conventional mechanically-controlled engine.

Concept of RT-flex engine

The RT-flex engine has been developed for realizing the following concepts.

Better economy

Low fuel consumption

Low maintenance cost

Better maneuverability

Lower minimum revolution

Capability for continuous low load operation

Better startability

Smooth changeover ahead / astern

Operability

Same manner as previous engines

Higher reliability / safety

Redundancy with duplex configuration of main parts

Equipped with monitoring system

Related Document : DU-WÄRTSILÄ　RT-flex engine