Basic Rolls-Royce offshore thruster unit/media/Files/R/Rolls-Royce/documents/... · The basic unit...
Transcript of Basic Rolls-Royce offshore thruster unit/media/Files/R/Rolls-Royce/documents/... · The basic unit...
General
The basic unit for offshore thruster
applications is a compact unit and
includes:
• L-drive with integrated steering gear
• Nozzle (tilted or non-tilted)
• FP propeller for variable speed electric
drive
• Hydraulic steering gear
It is suitable for various applications
including underwater mounting
This compact construction gives
advantages for mounting at the shipyard
as well as during routine maintenance.
Fact Sheet
Basic Rolls-Royce offshore thruster unit
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Typical applications
• Semi-sub drilling rig/ships
• Production vessels
• Other large vessels
Fact Sheet
Rolls-Royce Oy AbP. O. Box 220, FIN-26101, Finland Tel: +358 2 83791 Fax: +358 2 8379 4800Rolls-Royce Marine AS, Propulsion - UlsteinvikP.O. Box 158, N-6067 Ulsteinvik, NorwayTel.: +47 70 01 40 00 Fax: +47 70 01 40 17www.rolls-royce.com
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© 2013 Rolls-Royce plcWhilst this information is given in good faith, no warranty or representation is given concerning such information, which must not be taken as establishing any contractual or other commitment binding upon Rolls-Royce plc or any of its subsidiary or associated companies.
Hydraulic steering system Lubrication system
Closed loop type hydraulic steering system is equipped with one
100% capacity main pump. A stand by pump is optional. The variable
displacement pump has good steering efficiency and minimum
energy losses at low loads. The smooth turning operation is effected
by electrically controlled starting and stopping ramps. The system is
designed to give simultaneously full torque at 2 rpm steering speed
even in crash stop condition.
Lubrication oil is circulated by one 100% lubrication pump. A stand
by pump is optional. The pump is of screw type and thus very silent.
The oil is filtered by duplex (20 microns) filter as well as fine filter
(3 microns) in the by-pass line.
UUC is a modern design for underwater
mounting and demounting.
USE is designed for installation in dry
conditions. This type can be mounted
directly to the hull or on a container.
The container can be either of retrieveable or
retractable type.
USL is a compact design with bottom well
and foundation for vertical drive motor. USL
installation method means wet mounting
from the top through a casing.
Applications
UUC USE USL
Size 305 355 405 455 505
Propeller diameter (m) 3,0 3,2 3,5 3,8 4,1 4,2 4,5
MCR (kW) 3200 3200 3800 4000 4600 4800 5200 5500 6500 6500
Input /rpm) 720 720 720 750 720 750 720 750 600 600
Technical data
The final data is subject to application and to be reconfirmed by Rolls-Royce.