Main Engine 4-Stroke · Main Engines (4-Stroke)
The Wärtsilä 14VW31 engine employs a robust two-stage turbocharging system with intercooling to maximize power output. This 14-cylinder, V-configured engine boasts a 310mm bore and a 430mm stroke, achieving a power output of 4270 kW at 750 rpm. It is designed to operate on heavy fuel oil (HFO) and marine diesel oil (MDO) and features a common rail direct injection system for precise fuel delivery. The Wärtsilä 14VW31 is a four-stroke engine with a mean effective pressure (BMEP) of 30 bar and a specific fuel oil consumption (SFOC) of 167.7 g/kWh at its optimal point. It delivers a piston speed of 10.75 m/s and weighs approximately 57.1 tonnes (dry, diesel). Introduced in 2015 and continually refined, this engine has gained global recognition for its efficiency, with over 1,000 MW installed and exceeding 1 million running hours.
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