Main Engine 4-Stroke · Main Engines (4-Stroke)
Crews and engineers aboard marine vessels rely on robust and efficient propulsion systems to ensure reliable operations at sea. HiMSEN's 9L H35/40DF engine is a prime example of this reliability, offering a powerful output of 6210 kW at 720 RPM. Part of the H17/28 family, this 4-stroke engine features a bore of 350 mm and a stroke of 400 mm across its nine cylinders. Its compact and cost-effective design makes it an attractive choice for operators looking to optimize space and budget without compromising on performance. The engine is IMO Tier III compliant, ensuring environmental standards are met with fuel types including MDO and MGO. Notable features include an enhanced Miller timing system for NOx compliance and a new generation of turbochargers that improve efficiency. The specific fuel oil consumption (SFOC) at 100% MCR is 177 g/kWh, while at 85% MCR it drops to 174 g/kWh. The dry weight ranges from 193 to 260 tons depending on the cylinder count, and the engine has a compression ratio of 17:1. Regular maintenance is crucial for optimal performance, with common issues including cylinder cover wear and corrosion in marine environments, water contamination in the crankcase lubricating oil, piston ring and bearing wear from abrasive particles, turbocharger compressor/turbine wear, and saltwater corrosion in brackish water conditions. Regular inspections and timely interventions can help mitigate these issues, ensuring the engine remains a dependable asset for maritime operations.
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