Main Engine 4-Stroke · Main Engines (4-Stroke)
Designed for robust and efficient operation in marine environments, the MAN Energy Solutions 7L28/32H engine is a reliable choice for vessel propulsion and power generation. This 4-stroke, L-configured engine features a bore of 280 mm and a stroke of 320 mm, with seven cylinders delivering a total power output of 1540 kW at 750 rpm. It can operate on heavy fuel oil (HFO) or marine diesel oil (MDO). The engine’s swept volume per cylinder is 19.7 dm³, and it boasts a compression ratio of 13.9:1, with a maximum combustion pressure of 130 bar. Fuel consumption ranges from approximately 232-233 g/kWh for HFO at full load to around 188-190 g/kWh for MDO at 75% load. The engine is equipped with a constant pressure turbocharging system featuring intercooling, which enhances efficiency and performance. Regular maintenance checks are crucial to prevent common issues such as charge air cooler fouling, exhaust valve erosion, cooling system corrosion, main bearing wear, and fuel nozzle sticking, ensuring the engine operates at optimal levels throughout its service life.
Every value below comes from the manufacturer datasheet or class-society record on file for this model.
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