Main Engine 4-Stroke · Main Engines (4-Stroke)
This is a medium-speed trunk piston engine. The Wärtsilä 8LW22 is an eight-cylinder engine with a 'L' configuration, boasting a bore of 220 mm and a stroke of 320 mm. It operates at a speed of 900 rpm and can utilize both HFO and MGO as fuel. The engine's displacement per cylinder is 12.2 liters. The Wärtsilä 8LW22 is a four-stroke engine with direct injection, turbocharging, and charge air cooling. It achieves a compression ratio of 13.8:1 and a mean effective pressure of 21.9 bar. The engine's specific fuel consumption at 100% load using HFO is 187 g/kWh, and at 85% load, it is 185 g/kWh. The Wärtsilä 8LW22 is a legacy engine, with production ceasing in 2010.
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