Main Engine 4-Stroke · Main Engines (4-Stroke)
Marine vessels requiring robust and reliable power solutions often rely on high-performance medium-speed engines. The Wärtsilä 12VW31 is a prime mover designed for these demanding applications. This engine boasts a powerful output of 6240 kW, driven by a 12-cylinder V-configuration with a bore of 310 mm and a stroke of 430 mm. It operates at a rotational speed of 750 rpm and is capable of utilizing both Heavy Fuel Oil (HFO) and Marine Diesel Oil (MDO). The Wärtsilä 12VW31 incorporates a Common Rail Medium-Speed technology, renowned for its efficiency and precise fuel delivery. The engine's "verified_specs" highlight its key performance characteristics, including a Mean Effective Pressure (MEP) of 25.5 bar at 900 RPM and 24 bar at 1000 RPM. It achieves an impressive power per cylinder output of 325 kW, consistently across all configurations. Turbocharging with an intercooler ensures optimal performance and fuel efficiency. The Wärtsilä 12VW31 complies with IMO Tier II emission standards (MARPOL 73/78 Annex VI), demonstrating its commitment to environmental responsibility.
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