Rolls-Royce introduced its B33:45 range of medium-speed diesel engines which will be available in liquid fuel and gas configurations in due course.
The best fuel consumption and highest power per cylinder compared with other engines in the same category are key selling points of the new engine range, the company claimed. A first contract has already been signed by Prestfjord for installation on a stern trawler in mid-2015.
MAN Diesel & Turbo has launched a new high-speed engine – the MAN 175D – with target markets including ferries, OSVs, tugs and workboats. And Rolls-Royce subsidiary MTU is now offering a high-speed IMO Tier III-compliant engine with a power range up to 10MW and suitable for fast ferries, tugs and inland waterway vessels. The company is working with shipbuilder Damen and terminal service company Svitzer on the first high-speed gas engines which could be available by mid-2016.
Meanwhile Caterpillar Marine claims its new MaK M 25 E will be available from October and will save fuel for the operators of vessels including offshore and coastal cargo vessels. More efficient part-load performance could save up to 60 tonnes of fuel a year, Caterpillar said, because changing the operating mode from constant to variable engine speed helps to optimise performance.
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