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The force in marine propulsion Rolls-Royce is the leading developer and supplier ­ of propulsion equipment. A supplier who has the ­ apability to meet your demands regarding c p ­ erformance and cost-effectiveness. Ongoing research and development is the key to­the success of Rolls-Royce, with a total ­nvest­ ent ­n the i m i overall product range exceeding £6 billion in the last d ­ ecade. Combined with a ­ echnology and skills base t State-of-the-art technology combined with the latest hydrodynamic design codes are routinely used in the optimisation of propulsion equipment. a ­ ccumulated over...

Propellers/ reduction gears At the leading edge of propulsion technology Unlike other propulsor suppliers, Rolls-Royce has its own marine propulsion laboratory in Kristinehamn, Sweden, equipped with two cavitation tunnels. One conventional closed recirculating cavitation tunnel is used for testing propellers, waterjet pumps and ­ thrusters in "open water", i.e. in homogenous inflow. This tunnel offers a 2.5 m long, 800 by 800mm test section with water velocities up to 11 m/s. The test object is driven by an u ­ pstream drive shaft for tests of propulsors under ideal inflow conditions. As one...

Rolls-Royce controllable pitch propellers Typical applications: The Kamewa CP-A controllable pitch hub is an evolution of the XF5 system, r ­ enowned for its high efficiency and its blade bearing arrangement designed ­ to avoid peak pressures and cavitation. Compared with its ­ redecessor, the CP-A p offers ­mproved power to weight ratio by i 20%, a ­ ignificant increase in efficiency and s ­ a blade foot with ­ ecreased exposure to d cavitation, thanks to the latest mechanical design and hydrodynamic techniques. At the same time, the blade foot bearing ­ surfaces have been increased to provide...

Propellers/ reduction gears System D-F - OD box in front of gear The new FA oil distribution box provides reduced oil volume, easier seal replacement and improved pitch feedback accuracy. The new compact hydraulic system offers greatly reduced weight and oil volume and about 50% less energy consumption at constant pitch. System D-M - OD box in shaftline System I - oil distribution integrated in reduction gear 5

Rolls-Royce reduction gearboxes The reduction gearbox is a freestanding gearbox intended for integrated propulsion systems. It is designed as a combined speed reduction unit with common hydraulic system for gear hydraulically operated clutch and is provided with seating brackets for bolting to the ship's foundation.The input shaft is provided for mounting of the flexible coupling, and the output shaft with a cylindrical shaft or flange. Technical data reduction gearboxes All data subject to change without prior notice. The hollow bored propeller shaft carries The reduction gearboxes are normally...

Rolls-Royce high efficiency propulsion The rudder bulb is close to the propeller hub, but not attached to it.The nose of the bulb is curved, and gives good control of water flow fro nn propeller to rudder even at large steering angles. The Rolls-Royce high efficiency propulsion and manoeuvring system, Promas, integrates the propeller, a hub cap, a rudder bulb and the rudder itself into a hydro- dynamic efficient entity. results are verified by testing in the cavitation tunnel at the Rolls-Royce Hydrodynamic Research Centre and large scale model testing with relevant hulls. Available with CP and...

Rolls-Royce fixed pitch propellers Rolls-Royce has many years of experi­ nce e in the design of fixed pitch ­ ropellers. In the p US we have our own foundry capable of producing fixed pitch propellers up to 10m diameter in­a variety of materials, to the e ­ xacting tolerances required for modern ­ n ­ aval platforms. The characteristics of the Bird-Johnson and Kamewa range of FP p ­ ropellers provide good fuel economy, low vibration/noise levels and no harmful cavitation. They are usually individually d ­ esigned for the specific vessel, to deliver the optimum in propeller efficiency. ­ The Rolls-Royce...

Propellers/ reduction gears Rolls-Royce adjustable bolted propellers The adjustable bolted propeller a ­ llows the most efficient blade ­ matching for optimum efficiency, ­ while simplifying the installation ­ process. The Kamewa range of ABP is based on a hollow hub with blades bolted to it from the inside. A unique feature is the method of bolting the blades to the hub using simple hand tools. In comparison to conventional monobloc ­ fixed pitch propellers the ABP has h ­ igher quality blade ­ achining and m e ­ duced overall weight, which give easier ­ s ­ hipment, handling and mounting. The...

azimuth thrusters Rolls-Royce is one of the world's leading suppliers of azimuth thrusters. The basic idea behind an azimuth thruster is that the propeller can be rotated 360 degrees around the vertical axis, providing omni-directional thrust.The Rolls-Royce range of azimuth thrusters therefore offer superior manoeuvrability.The simple and robust construction provides high operational reliability along with easy maintenance, which result in a best possible total economy. The flexibility in design makes the azimuth thrusters ideal to a wide range of vessels. The low noise and vibration levels...

Rolls-Royce azimuthing contra-rotating propellers Azimuthing thrusters The Rolls-Royce azimuthing contra-­ rotating propeller, type Contaz, is the world’s first thruster system designed and b e ­ uilt ­ specially for ­ erchant vessels. It m ­ combines the benefits of contra-­ otating r propellers with ­ teerable thrusters. The s latest bearing, gear and shaft technology are the keys to the Contaz – refined and developed through decades. The Contaz also represents a new way of designing and building ships, and to a ­ rrange its power and auxiliary­­ ystems s for maximum economy, ­ tilisation and...