6H35/40

The HiMSEN 6H35/40 employs a medium-speed common rail technology, designed to deliver reliable performance in marine applications. This engine features a six-cylinder configuration with a bore of 350 mm and a stroke of 400 mm, running at 750 rpm and generating 3900 kW of power. It can operate on heavy fuel oil (HFO) or marine gas oil (MGO), and is certified to IMO Tier III emission standards. The engine's enhanced Miller timing ensures NOx compliance, and it incorporates a new generation of turbocharger for higher efficiency. Key maintenance areas include the cylinder cover, where wear and surface corrosion can occur, necessitating regular reconditioning during overhauls. Water contamination in the crankcase lubricating oil can cause acid formation and wear, which should be monitored regularly. Additionally, abrasive particles in the fuel can lead to piston ring and liner wear, with specific wear limits for the cylinder liner and flame ring. The turbocharger compressor/turbine also requires regular water flushing every 200 to 500 operating hours to prevent wear. In brackish water environments, chlorides can cause corrosion of bearings, exacerbated by the mixing of water with lubricating oil.