INFOCUS

摘要

Rolls-Royce has ramped up its offerings from its Bergen range and those of subsidiary MTU. The company has unveiled a new group of medium speed Bergen engines. The B33:45, which was launched in its diesel variant in September 2014, has been designed to boast a 20% increase in power per cylinder compared to the current B32:40-series engine in the Rolls-Royce Bergen range. This means the same power demand can be met with fewer cylinders, not only making the engine more compact, but also reducing maintenance. "The engine will produce 600kW per cylinder versus 500kW, so this makes the new engine ideal for space saving while meeting power requirements," said Thor Humerfelt, Rolls-Royce's programme director, Bergen engines, adding thatthe engine had a fuel consumption of 177g on full load and 175g at 85% load. "We have ensured reduced vibrations, visible smoke at low load and incorporated an equipment health monitoring system. Furthermore we have tried to ensure thatthe engine needs to be overhauled at 25,000 hours, which should sync up with the reclassifi cation of the vessel."