Rolls-Royce Marine Diesel Engines are manufactured by Rolls-Royce plc and cover five ranges of diesel engines for the marine sector. There are three "Bergen" and two Crossley Pielstick ranges with power outputs in the range 1.2MW to 15MW.
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The Bergen marine diesel ranges are denoted by the letters C, B and K and are broadly divided by the power output as follows:
for powers from 1200 – 8,000kW,
for powers of 1190kW – 8750kW.
These engines can all burn Marine Diesel Oil (MDO) and Heavy Fuel Oil (HFO).
They achieve specific fuel consumptions of between 183 and 196g/kWh. Specific lubricant oil consumptions are of the order of 0.8g/kWh.
Two of the Bergen marine engine variants may be fuelled by natural gas.
The Bergen K marine diesel and gas engines are a range of marine internal combustion engines manufactured by Rolls-Royce plc.
The Bergen K lean burn marine engines with 250mm bore and 300mm stroke is available as a diesel in 6, 8 and 9 cylinder in-line configurations for propulsion and auxiliary duties.
Features:
The diesel power range is from 1215-2005 kW. Also available as a gas engine for powers from 1190 – 3970kW the Bergen K-G4 lean burn gas engine is the result of careful development based on the Bergen K.
The lean burn principle of the K-G4 gas engines operation combines high power and high efficiency coupled with reduced exhaust emissions, and delivers a specific fuel consumption of 7990-8060kJ/kWh. Engines in service burn natural gas and also other fuels such as gas derived from landfill and from fermentation of effluents.
Bergen lean burn spark ignition technology was first developed more than fifteen years ago and has proved very popular for power generation on land.
Bergen K engines have dry masses between 22500 and 30500 kg
These marine diesel and gas engines have design lives of more than 20 years and engines are installed in more than 150 power plants throughout the world.
Also available as a gas engine for powers from 1190 – 3970kW the Bergen K-G4 lean burn gas engine is the result of development based on the K type diesel and heavy fuel oil engine parent.
The Bergen B Series is a twenty year old (est. 1986) marque of reciprocating diesel engines. They serve a wide range of ocean-going vessels and; can be supplied as propulsion units or as generator sets for the provision of electrical power. The range includes in-line and Vee cylinder configurations.
The Bergen B Series Marine Diesels have power outputs in the range 2,545 - 5,300 kilowatts
These engines have a reputation for being "a Rolls Royce product" in terms of quality which is ironic because when they were designed, the company was not part of the Rolls Royce organization.
The Bergen B35:40 gas engine has high power and efficiency in the 720-750 rpm class and, is designed for low emissions of NOx, CO, and UHC combined. It builds on the latest B diesel hardware, specifically redesigned and modified for this gas variant.
Pielstick PA6 STC and PA6B STC
Manufactured under licence by Rolls-Royce plc, these engines are designed and developed specifically to burn heavy residual fuels. The Pielstick PA range of diesels offers cylinder configurations ranging from 6 to 20 and a power range of 1950 to 8910 kW.
S.E.M.T Pielstick PC2.6 & PC2.6B These models are rated for Naval applications to run at 520/600 rpm respectively, with power outputs in the 6 to 15 MW range.