MAN Engines is expanding its existing engine portfolio for workboats with a newly developed workboat engine for heavy and medium-duty applications.
Based on a completely new basic engine that benefits from the findings of the established MAN D2862 V12 engine series, the MAN D3872 LE432 with 1,650 hp (1,213 kW), and a displacement of 30 litres, is ready for its first field test on an Italian passenger ferry.
"MAN engines have always stood for a low power-to-weight ratio. With the MAN D3872, we offer an even better solution for demanding applications with more power and larger displacement," says Reiner Roessner, Head of Sales at MAN Engines.
Wind farm supply vessels (WFSV), ferries and passenger ships, or fishing boats with up to 3,000 hours of operation per year and a full-load share of up to 50 percent benefit from the high level of smoothness, fuel efficiency and reliability.
Significant changes have been implemented, including an increase in the wall thicknesses of the crankcase, optimised bolting and a new crankshaft with larger bearing diameters. A new coolant pump and an optimized thermostat housing provide an improved coolant supply and a long engine life.
The engine offers optional outer skin cooling instead of the closed cooling circuit. The new cylinder head of the MAN D3872 is also aerodynamic and cooling-optimised. In addition to the positive results from extensive test bench tests, further tests are currently being carried out on the water in customer applications with classified engines, such as the re-engining of a passenger ferry.
Werner Kübler, Head of Engineering at MAN Engines, emphasises, "MAN engines stand for robustness. For this reason, numerous measures have been taken to ensure durability, reliability and future viability for the MAN D3872."
The new engine is future-proof for EU Stage V, hybrid systems and suitable for HVO.
