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We develop and deliver complex power and propulsion solutions.

For more than 100 years we have been at the forefront of innovation. Helping to power, protect and connect the modern world.

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Help us deliver better power for our changing world.

We develop and deliver complex power and propulsion solutions for safety-critical applications in the air, at sea and on land.

Our products and service packages enable our customers to connect people, societies, cultures and economies together.

Doing more with less

We have a fundamental role in meeting the environmental and societal opportunities and challenges that the world faces.

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Updates and news from around the Rolls-Royce businesses.

Marine

10 years of LNG at sea

Better power for a changing world

Rolls-Royce has significant and growing experience with its Bergen lean-burn technology. More than 650 gas engines have been delivered for operation on land or at sea, and more than 31 million running hours of experience have been accumulated.

Discover

Delivering clean power for the future

The marine industry relies on fuel oils for most powering needs, but tighter emission regulations and the need to ‘go green’ are starting to convince operators to consider alternatives. Rolls-Royce gas engines have proven themselves to be the cleanest, most efficient piston engines on the market. Since the introduction of the Bergen lean-burn technology more than 700 gas engines have been delivered and over 31 million operating hours accumulated at sea and on land.

Fuel efficiency

Low emissions

Responsiveness

Low maintenance

Safety

Heat recovery

Fuel efficiency

Mixing gas and air together for combustion at the right time is crucial to maximizing the efficiency of our engines. Bergen lean burn gas engines turn around 50% of the energy in the fuel into power at the flywheel. If a waste heat recovery system is added this figure could potentially rise by a further 20%, depending on the technology used.

The lean burn system combines spark-ignition with a prechamber, so the engine uses a lean mixture of gas and air. At the start of the compression stroke a valve feeds the right amount of gas for ignition into the prechamber, where it is ignited by the spark plug at the right moment.

This charge is directed into the cylinder, bringing enough energy to ignite the lean mixture.

Advanced control systems meter the gas, control the air pressure, valve and ignition timing. Knock sensors detect changes and adjust the control system, ensuring methane slip is reduced to very low levels. The engine combustion technology is robust and ensures that the engines can operate on a wide range of gas qualities.

“Using the Rolls-Royce Power Management system, engines can be run at their most efficient load, minimising fuel consumption and helping our customers cut their total emissions.”

Trond Hauge
Technical Manager, Island Offshore

Systems

Explore our ship systems

Rolls-Royce tailors the entire system design, combining gas engines with an efficient propulsion system to meet individual customer needs and the operating profile of the vessel. We can also add an efficient hull design, and – if needed – a hybrid solution with PTI/PTO to provide system flexibility. Our delivery also includes a complete automation and control system where all equipment is interfaced with optimum efficiency and operating economy.

Passenger

Cargo

Tug

Offshore

Offshore | Features

Stricter environmental regulations plus demand from operators have challenged suppliers to come up with cleaner, more efficient power systems. Rolls-Royce’s answer to this challenge is pure LNG engines in combination with efficient diesel-driven engines. Rolls-Royce designed UT vessels with gas/diesel/electric systems have proven to offer the optimum route to cost-effective environmental compliance.

The Bergen lean burn gas engines create a better working environment for crews on board the PSV and on the rig. With almost 800 UT vessels with a range of designs in operation, we’ve proved that we have the qualities and the competence to offer the most comprehensive integrated system for the Offshore Supply Industry.

Pulling azimuthing thrusters – azipull

The Azipull combines the advantages of a pulling propeller with the stability and manoeuvrability of a rudder. It is designed to offer efficient propulsion and manoeuvring on higher speed vessels, and can be linked to any prime mover via mechanical or electric drive (diesel, gas turbine or electric motor) depending on individual customer requirements.

The streamlined leg and skeg recover swirl energy from the slipstream, raising overall propulsive efficiency. The leg has a wide chord to optimise rudder effect and improve course stability. Azipull – which is optimal for larger vessels that require high stability and manoeuvrability – is available with a controllable or fixed pitch propeller.

LNG tank

Three types of tanks are available on the market. A, B and C-type. Most common is the vacuum insulated C-type.

IMO type C-tank allows for; pressure build up, partial loading, easy installation and a range of volumes per tank.

Medium speed gas engines

Rolls-Royce lean-burn gas engines are the cleanest and most efficient piston engines available today, and are classed for both marine propulsion applications and power generation offshore and onshore.

Compared to diesel engines, Bergen gas engines give an emissions reduction of 92% NOx, and around 22% CO₂. They also virtually eliminate SOx and particulates, and already meet the IMO NOx Tier 3 requirements that will come into force in 2016.

Medium speed diesel engines

The C-series engine is a simple and robust design with a reduced number of components. With 6, 8 and 9 cylinders in-line, the Bergen C-series has a range of operating speeds from 900rpm to 1,000rpm and can be supplied with powers from 1,920 to 3,000kW. All engines have a bore of 250mm with a 330mm stroke.

Azimuthing swing-up thruster

Rolls-Royce Swing up thrusters range from 880 to 2000 kW.

Tunnel thruster

Rolls-Royce tunnel thrusters are fitted to a wide range of vessels operating in all corners of the world. The tunnel thruster is designed to give maximum side force to the ship in manoeuvring conditions. The system consists of the thruster unit with tunnel, hydraulic equipment, remote control, and the electrical drive motor with starter. Thrusters are available in both CP and FP versions. Three types of tunnel thrusters are available: standard type, super silent and the newly developed Permanent Magnet thruster.

Power management system

Switchboards have a simple interface to the Integrated Alarm System (IAS) and can be equipped with Power Management System (PMS) for optimized control of the power system and Arc Fault System for enhanced personnel safety.

Other control and safety systems, which form a part of a Rolls-Royce diesel-electric or hybrid propulsion system, are integrated in the switchboard: Blackout Prevention System (BPS), Digital Excitation System (DES), Voltage Quality Monitoring System (VQM).

Medium speed gas fuelled auxiliary engines

The Bergen lean-burn gas engines are the cleanest and most efficient piston engines available today, and are classed for both marine propulsion applications and power generation offshore and onshore. Compared to diesel engines, Bergen gas engines give an emissions reduction of 92% NOx, and around 22% CO₂. They also virtually eliminate SOx and particulates, and already meet the IMO NOx Tier 3 requirements that will come into force in 2016.

Integrated bridge and automation system

Our new concept for ship operation workstations covers navigation, manoeuvring, dynamic positioning, anchor and deck operations and machinery control. Stations are built up from modules and a range of standardized components that meet ship owners’ individual requirements and preferences.

Functions include operation planning, execution and monitoring, and are based on clearly presented information. Crews differ in height, arm reach and other parameters, so the system allows the operator to find a comfortable position, with controls ergonomically placed and necessary information presented on touch screens. Consistency in command transfer, system operation and alarm handling enhances operational safety.

Details

Island Contender

Island Offshore

Country

Norway

Ship type

Offshore

Rolls-Royce engine scope

2xC26:33L9AG + 2xC25:33L6ACD

Details

Island Crusader

Island Offshore

Country

Norway

Ship type

Offshore

Rolls-Royce engine scope

2xC26:33L9AG + 2xC25:33L6ACD

Talk to an expert

Excellence is our way of life

Oscar Kallerdahl Sindre Holmelid Håberg Kim Espen Tepstad

About Oscar Kallerdahl

Sales Manager, LNG Systems

Oscar Kallerdahl holds a M.Sc. in Mechanical Engineering and Product Development. After many years in Rolls-Royce he has covered the full range of Rolls-Royce products and gained in-depth knowledge of the core processes that drive businesses – from Customer Relations, Sales and Contract Management, to Production, Delivery and Warranty Handling.

About Sindre Holmelid Håberg

Area Sales Manager - OSV & Merchant - Engines, Commercial Marine

Sindre Holmelid Håberg started as a diesel mechanic, subsequently obtaining an engineering degree in Mechanical Engineering, specialising in reciprocating engines. Sindre’s wide-ranging knowledge enables him to provide customers with a full and complete understanding of all available options open to them, and their vessel.

About Kim Espen Tepstad

General Manager Sales, Engines

Kim Espen Tepstad has spent all his working life with marine engines, starting out with nearly 5 years on the production line, assembling and testing them. After working closely with design and engineering teams for many years, this has given him a deep understanding of all aspects of engine design.

Services

Services & aftermarket support

With our network of strategically located marine workshops spread across the globe, we can support our customers’ repair and overhaul needs wherever they are operating. Services are tailored to customer requirements, providing rapid turnarounds to meet docking schedules, while working to ISO quality standards.

Product training

24/7 technical support

Services