Main Engine 4-Stroke · Main Engines (4-Stroke)
The 6LH46/60V is a high-performance marine engine from HiMSEN. This model is part of the H46/60V family and features a bore of 460 mm and a stroke of 600 mm, delivering a power output of 5220 kW at 500 rpm. It is designed to run on heavy fuel oil (HFO) or marine diesel oil (MDO) and is equipped with an enhanced Miller timing vent valve system for NOx compliance, ensuring it meets IMO Tier III emission standards. The engine's turbocharger is from a new generation, offering higher efficiency. Each cylinder produces 1250 kW, and the specific fuel oil consumption (SFOC) is 177 g/kWh at 100% maximum continuous rating (MCR) and 174 g/kWh at 85% MCR. The engine's dry weight ranges from 193 to 260 tonnes, depending on the number of cylinders. Common maintenance issues include cylinder cover wear and surface corrosion in marine environments, water contamination in the crankcase leading to acid formation and wear, abrasive particle wear on piston rings and bearings, turbocharger wear requiring water flushing every 200 to 500 operating hours, and saltwater corrosion of bearings in brackish water environments due to chloride ions.
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