Rolls-Royce has introduced its advanced design MTU Series 4000 diesel engines for IMO III and EPA Tier 4 emission regulations. The engines have completed over 4,000 hours on MTU’s test benches in Germany and the United States.
As of 2018, MTU will offer advanced design diesel engines as the main propulsion for tug boats, ferries, crew supply vessels, displacement hull yachts, governmental vessels and as a genset for power supply for ships and offshore platforms. With a variety of technical advances to the turbocharging system, the combustion process and the injection system of the engines, NOx emissions have been reduced by 75 percent compared with IMO II and particulate emissions by 65 percent compared with EPA Tier 3. An additional diesel particulate filter is not required.
The Series 4000 diesel engines will be available in 12-, 16- and 20-cylinder versions. The power range will extend from 1,380 to 3,220 kW and will thus offer 45 percent increase in output compared with its predecessor.
MTU has already received its first order for an IMO Tier III yacht propulsion system: Bilgin Yachts shipyard in Istanbul is to equip a new 80m yacht with two MTU 16V 4000 M73 engines. Construction has begun. Delivery is scheduled for 2019.