Auxiliary Engine (Generator Set) · Auxiliary Engines
This engine type utilizes a 4-stroke, two-stage turbocharged design with intercooling, featuring common rail direct injection for efficient fuel delivery. Wärtsilä's 7LW31-GS-50Hz is a powerful diesel engine with a bore of 310 mm and a stroke of 430 mm, arranged in a 7-cylinder configuration. It boasts a maximum power output of 2065 kW at 750 rpm and is optimized to run on Heavy Fuel Oil (HFO) and Marine Diesel Oil (MDO). The engine is capable of generating 1962 kW of electricity at 50 Hz frequency. Wärtsilä's 7LW31-GS-50Hz benefits from a robust common rail fuel injection system with extended overhaul intervals for the high-pressure fuel pumps. The engine's design incorporates features aimed at reducing emissions and improving efficiency, including two-stage turbocharging with intercooling and a mean effective pressure (BMEP) of 30 bar. The engine's piston speed reaches 10.75 m/s. This model is part of Wärtsilä's widely recognized W31-GS engine family, known for its reliability and performance in marine applications.
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