Main Engine 4-Stroke · Main Engines (4-Stroke)
Designed for high-performance and fuel flexibility, dual-fuel engines are essential for modern maritime operations where efficiency and environmental compliance are paramount. The 18VW25DF, part of the W25DF family, delivers a robust 2970 kW at 1000 rpm, making it suitable for a wide range of marine applications, including large ferries, cargo ships, and offshore vessels. With a V-configuration and 18 cylinders, this engine is equipped to handle both LNG and HFO, ensuring operational versatility and reduced emissions. The bore and stroke dimensions are 250 mm and 300 mm, respectively, contributing to its high power output and reliability. The 18VW25DF also features a common-rail high-pressure injection system, which enhances fuel efficiency and performance. To maintain optimal operation, regular checks on the high-pressure common-rail pump for contamination and monitoring of piston ring wear during low-load operations are crucial. Additionally, periodic inspections of the turbocharger for deposits and the NOx reduction system (NOR) to ensure compliance with IMO Tier III standards are recommended. With a time between overhauls (TBO) of up to 32,000 hours, the 18VW25DF is built for long-term reliability and minimal downtime.
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