Marine Power Catalogue
Marine Power Catalogue
Catalogue
Explore the why, how and what of Wärtsila Marine Power
Table of contents
Introduction........................................................................... 3
Diesel Engines............................................................................................ 9
Auxiliary Systems........................................................................................ 28
2-speed Gears........................................................................................... 42
Steerable Thrusters.................................................................................... 56
Retractable Thrusters................................................................................. 60
Transverse Thrusters.................................................................................. 65
Waterjets..................................................................................................... 67
Control Systems......................................................................................... 74
Electric Propulsion............................................................... 76
Hybrid Solutions................................................................... 78
Hybrid Propulsion................................................................. 81
Power Generation................................................................. 84
Shaft Generator Systems............................................................................ 84
Power Distribution................................................................ 86
Lifecycle Services................................................................. 90
Spare Parts................................................................................................. 90
Services and workshops............................................................................. 91
Wärtsilä Online............................................................................................ 92
Lifecycle Solutions...........................................................................,........... 93
Lifecycle Upgrades...................................................................................... 96
Training Services.......................................................................................... 97
Through its Smart Marine Ecosystem vision, Wärtsilä has pointed
the way to a maritime future that is smart, clean, safe, and highly
vision.
3
Wärtsilä Engines
the engines are capable of switching from one fuel to the other
generating sets.
4
Engines and Generating Sets
Dual-fuel Engines
5
Engines and Generating Sets
Dual-fuel Engines
6
Engines and Generating Sets
Dual-fuel Engines
7
Engines and Generating Sets
Dual-fuel Engines
8
Engines and Generating Sets
Diesel Engines
9
Engines and Generating Sets
Diesel Engines
10
Engines and Generating Sets
Diesel Engines
11
Engines and Generating Sets
Diesel Engines
12
Engines and Generating Sets
Diesel Engines
13
Engines and Generating Sets
Diesel Engines
14
Engines and Generating Sets
Diesel Engines
Engine dimensions
a piston.
• Dimensions are in millimetres and weights are in metric tonnes. Indicated values
• Tolerance 5%
• Natural gas
15
Engines and Generating Sets
Generating Sets
Wärtsilä Gensets
A wide range of generating sets, comprising the generator and diesel engine mounted
on a common baseframe, are available for both service power generation and for
diesel-electric propulsion. All generating sets listed in this section are based on
medium-speed diesel engines designed for operating on heavy fuel oil. These
generating sets are resiliently mounted and the generator voltage can be selected in all
cases, except for the Auxpac generating sets, which are Low Voltage only. Larger
diesel generators are delivered for separate mounting of the diesel engine and
generator.
16
Engines and Generating Sets
Generating Sets
17
Engines and Generating Sets
Generating Sets
18
Engines and Generating Sets
Generating Sets
19
Engines and Generating Sets
Generating Sets
20
Engines and Generating Sets
Generating Sets
21
Engines and Generating Sets
Generating Sets
22
Engines and Generating Sets
Generating Sets
23
Engines and Generating Sets
Generating Sets
24
Engines and Generating Sets
Generating Sets
25
Engines and Generating Sets
Generating Sets
26
Engines and Generating Sets
Generating Sets
Engine dimensions
centreline
Indicated values are for guidance only and are not binding.
• Tolerance 5%
• Natural gas
27
Engines and Generating Sets
Auxiliary Systems
All auxiliary equipment needed for the engines can be delivered by Wärtsilä.
Some equipment can be built onto the engine, and the rest can be delivered
Depending on the engine type and application, a lubricating oil pump HT- and LT-
cooling water pumps, fuel pump, oil filters and coolers, prelubricating oil pump and
lubricating oil automatic filters, exhaust gas silencers and boilers are
• Tolerance 5%
• Natural gas
together with the main propulsion engines and generator sets. Whenever
building costs and operating costs for a specific combination of main and
auxiliary engines.
Auxiliary Systems
Preheating unit
Oil mist
separator module.
29
Selective Catalytic Reduction NOx
NOx Abatement
Generating Sets
A marine diesel engine installed on a ship constructed on or after 1 January 2016, and
operating in the North American ECA and the United States Caribbean Sea ECA, must
comply with the Tier III NOX standards. The same rule applies in the North Sea and
Baltic Sea for ships with keel laying on or after 1 January 2021.
The Wärtsilä NOX Reducer (NOR) is an emission after-treatment system based on the
Selective Catalytic Reduction (SCR) technology for Nitrogen Oxide (NOX) reduction.
The NOR is optimized and validated for Wärtsilä medium speed engines in terms of
reliability, flexibility, size and easy installation and maintenance onboard. It is available
for both new build and retrofits. Wärtsilä engines delivered with NOR are equipped
with exhaust gas temperature control to ensure the correct temperature for SCR
30
Selective Catalytic Reduction NOx
NOx Abatement
operation (ON/OFF). The NOR can be used for various applications and different fuel
qualities (HFO/MDO/MGO) and can be operated together with other exhaust gas
equipment including scrubbers, silencers, and exhaust gas boilers. Wärtsilä provides
IMO and EPA Tier III EIAPP certificates for a complete package of engine and SCR.
The Wärtsilä NOX Reducer ensures you can operate with different fuels globally and
The main component of the NOR installation is the Reactor with a soot blowing unit
and the catalyst elements. Other modular essential parts of the NOR system are the
power distribution unit, urea pump unit, urea dosing unit, which controls the SCR
31
Fuel Gas Supply Systems
Wärtsilä Marine Power has the biggest experience and widest references in the
Wärtsilä offers the LNGPac™ systems as a full ‘one-stop-shop’ supply and service
package that includes assistance for the ship design, the system classification
The LNGPac
Wärtsilä LNGPac™ is a complete fuel gas handling system for LNG-fuelled ships
consisting of several modules such as the bunkering station, the fuel tank, the
process and conditioning equipment as well as the control and monitoring system.
with patented features such as the cold recovery or the integrated Gas Valve Units.
detection, ship to shore link and other optional features. Wärtsilä can deliver LNG
systems for propulsion and power generation for any applicable type of ship or low-
pressure (6/16 barg) dual fuel or gas engine, including WinGD and other engines’
makers.
The Wärtsilä LNGPac™ systems are tailored made and are built by several modules
which are connected on board by the shipyard. Interconnecting piping can be offered
as an option.
The main item of an LNGPac™ system is the LNG fuel storage tank which can is
Wärtsilä collaborates also with other companies, such as GTT, for other tank
The process equipment can be delivered either mounted directly on the tank, in a
TANK CONNECTION SPACE, or in a unit detached from the tank normally called
FUEL GAS PREPARATION UNIT. Wärtsilä can deliver the Tank Connection Spaces as
open dome arrangements or built-on gastight enclosed units. Typical LNG processes
32
Fuel Gas Supply Systems
AUTOMATION
Any LNGPac™ system comes with its own automation system ready for data sharing
with an easy-to-use interface and ESD functionalities for the scope supplied. The
LNGPac™ operations, such as bunkering, BOG, management, and fuel gas supply
to consumers are fully automated and controlled with an HMI adapted to customer
needs. The LNGPac™ control system can be delivered integrated with the vessel
automation system (IAS) and with monitoring & remote access or diagnostics (CBM)
Complete Solution
The Wärtsilä LNGPac™ system is based on an IMO C-type LNG-storage tank with
pipelines, e.g. from the bunker station to the tank are insulated. All necessary
directly to the LNG tank or placed remotely. The fuel gas process equipment
vaporizes the liquid LNG to natural gas and ensures correct fuel gas temperature and
pressure for the engines and other gas consumers. The LNGPac operations, such as
bunkering, BOG, management, and fuel gas supply to consumers is fully automated
and controlled with an HMI adopted to customer needs. The LNGPac control system
can be delivered integrated with the vessel automation system (IAS) and with
monitoring & remote access or diagnostics (CBM) of Wärtsilä Life Cycle Services.
33
Fuel Gas Supply Systems
and operational standards specific to a gas processing plant. The NG pipelines are
ventilated and hazardous zones are separated from the non-hazardous space with an
requirements.
Main Features
and operational standards specific to a gas processing plant. Hazardous zones come
prepared for forced ventilation and can be separated from the non-hazardous space
the project to match the specific operational requirements, safety and classification
requirements.
MAINTANABILITY
The LNGPac™ systems are designed with attention to maintenance. The system is
engineered relying on tools supporting the lifecycle of the product and selecting
components which minimize the downtime of the system and allow a safe
maintenance. The automation is designed for the maximum possible remote operation
of the system without manual intervention and increased safety for the crew.
COLD RECOVERY
The cooling power of LNG can be recovered and utilized for HVAC and cold storage
INTEGRATED AIRLOCK
hazardous zones, and makes the installation for the yard easier.
Gas Valve Units can be integrated with the rest of the LNGPac™ reducing the
installation work for the shipyard. The integration can not only save space on board
but also reduce the installation time and the costs of the system.
CONNECTED PORTFOLIO
LNGPac™ automation can be connected to the Wärtsilä engine and GVU digital
ecosystem for global maintenance support throughout the complete vessel lifecycle.
Besides, one supplier for automation design, project execution, commissioning work
and services will reduce project risk and minimize delays in communication.
SPECIAL DESIGNS
Wartsila is a frontrunner in developing new solutions and tank designs. The Wartsila
INLINE TANK CONNECTION SPACE combines the benefit of a PUR insulated tank
(weight and cost reduction) with the compactness of the process system typical of a
vacuum insulated tank solution. The collaboration with GTT smoothen the design and
delivery of Fuel Gas Supply systems with membrane tanks. The Wartsila’s patented
multilobe design combines the benefits of a type C tank with the volume efficiency of
a prismatic tank.
34
Fuel Gas Supply Systems
LNGPac™ design focuses on enabling safe service and maintenance of all core
Multi-Lobe LNGPac
fuel. The system provides adequate storage and supply capabilities for gas-fuelled
35
Fuel Gas Supply Systems
The Gas Valve Unit (GVU) is a module connected to the DF engine gas supply piping.
Each engine has its own dedicated GVU. The unit controls the gas pressure to the
engine according the engine load. Wärtsilä can deliver GVUs for both Wärtsilä 4-st DF
The GVU-EDTM™ is a solution where all gas related equipment is mounted inside a
gas tight enclosure. This arrangement allows the GVU to be placed inside safe area
for example the engine room. GVU location next to the engine gives the best engine
The GVU-OD™ is a traditional solution that is used mainly for Gas Carrier. The GVU-
OD are delivered open-skid mounted and must be installed in a dedicated GVU room
(Hazardous area).
GVU Integrated
If the distance between the gas consumers and the LNGPac™ allows it, the GVU
equipment can be integrated with the rest of the LNGPac™ process equipment.
GVU Automation
The Wärtsilä GVUs comes as a complete module with the automation system. With
GVU-EDTM™ the automation is fixed in the unit frame and with GVU-OD™ control
cabinet and solenoid valves. With GVU-ED™ solenoids are located in dedicated
solenoid valve cabinet and with GVU-OD™ solenoids are directly mounted on the
valve actuators. The control cabinet gives control signal to solenoids and solenoids
are controlling pneumatic air feed to the valves. Therefore, unit is so called electro-
valve position sensors. The control cabinet is equipped with a LDU (Local Display Unit)
where the operator can read unit and valve statuses, sensor readings, possible active
alarms and alarm history. Furthermore, the alarms are send via Modbus Ethernet link
Options
Opening side
• For the GVU-ED the opening of the enclosure can be made either on the left or
Flow meter
• The Wärtsilä GVUs can be supplied with an integrated flow meters to allow the ship
owner to optimize the engine and keep record on the gas consumption. The used
flow meter type is a Coriolis mass flow meter. This type of instrument gives
accurate measurements regardless of pressure and temperature. The flow meter is
mounted on the GVU with an additional flow meter transmitter box.
36
Propulsors & Gears
Wärtsilä Gears
Wärtsilä gears have been designed to meet the highest standards of operational
Gear configurations:
• 1-speed gearboxes, for installations with a single engine and propeller
• 2-speed gearboxes, for installations with a single engine and propeller able to
operate at two selectable propeller speeds. The Wärtslä SCV/2 designation
• Double gearboxes, for installations with two engines and one propeller
• Special gearboxes, for instance gearboxes with both horizontal and vertical
offsets, are available upon request and are customised for the specific
application.
• All Wärtsilä gears can be supplied with built-in multi-disc clutchesfor engaging
All Wärtsilä gears can be equipped with one or more PTOs for driving shaft
Most Wärtsilä gears can be supplied with a combined PTO/PTI. In PTI mode the shaft
alternator can be used as an electric motor to enable additional power for demanding
operations via the ‘PTI booster’. This functionality does not require any additional
clutch.
• “PTI take me home” – an electrical drive mode used for emergencies if the
prime mover is out of operation. This functionality requires two clutches: one
to disconnect the prime mover and one to engage the propeller in PTI mode.
Hydraulic system for the gear & controllable pitch (CP) propeller can be
integrated or separate
Most Wärtsilä gears are designed with an integrated propeller hydraulic system. This
provides a space efficient and highly reliable solution since the hydraulic pump is
37
Propulsors & Gears
* Not binding
38
Propulsors & Gears
* Not binding
39
Propulsors & Gears
40
Propulsors & Gears
* Not binding
TCH type
41
Propulsors & Gears
The Wärtsilä 2-speed gear is designed to serve vessels having multiple operational
vessels, tug boats and fishing vessels can gain notable economic and environmental
benefits. Single screw vessels with redundant propulsion system (“take me home
The key feature of the 2-speed gearbox is the possibility to reduce the propeller speed
while the speed of the vessel remains constant in operating conditions where vessel
speed is below maximum. This results in fuel savings of up to 15% when compared to
a single speed mechanical propulsion system. At the same time, nitrogen oxide (NOX)
When switching between propeller speeds, both the engine speed and PTO speed
are kept constant, enabling uninterrupted electrical power generation at any time.
Benefits
• Acts as a systems enabler for vessels with variable operational modes and/or a
• Reliable and simple to operate with mode changes from the bridge
• Lower noise levels for on-board comfort and ecological friendliness
42
Propulsors & Gears
2-Speed Gears
Vertical Offset
Horizontal Offset
43
Propulsors & Gears
2-Speed Gears
44
Propulsors & Gears
Wärtsilä Controllable Pitch (WCP) propeller systems provide excellent performance and
manoeuvrability, and are recommended for vessels with frequent sailing routes that
involve multiple operating conditions. These can be, for example, vessels requiring full
power in both bollard pull and free- sailing conditions, or that make frequent port calls.
WCP propeller systems can also be applicable for vessels that encounter varying
positioning. A controllable pitch propeller can be the optimal choice for installations
with a shaft generator operating at constant rotational speed. Full propulsion power is
available in both heavy and light conditions through an automatic pitch adjustment.
The WCP propeller system is the ideal choice for diesel-mechanic propulsion with both
Power Take Off/In, the WCP propeller system can be transformed into a hybrid
blades, shafting, hydraulics, control system and any further accessories required. The
system is fully customised to meet the specific needs of the customer. Wärtsilä’s
hydrodynamic experts tailor the propeller for each application to achieve the optimum
balance between fuel consumption and comfort levels, according to the customer’s
wishes.
Technical Data
Options
45
Propulsors & Gears
Power range for Wärtsilä standard 4 bladed bronze hubs, without ice
class notation
16 MW. The WCP hub type D is the right solution for light and moderately loaded
propellers. The WCP hub type G is selected for vessels requiring high power or
having a highly loaded propeller. With these two hub types, Wärtsilä successfully
covers all applications requiring controllable pitch propellers. Stainless steel propellers
46
Propulsors & Gears
Wärtsilä offers an unrivalled range of products, systems and solutions, including ship
machinery, propulsion equipment and control systems, for all types of marine vessels.
The offering is based on technological expertise and close customer support. Our
customer support extends throughout the entire process, from initial design to
efficiency
47
Propulsors & Gears
The hydrodynamic design covers propellers for vessels ranging from heavy-duty
ships, such as AHTS to high-speed passenger ferries, and from small fishing boats to
how is based upon the company’s long history and vast experience in the design of
propellers. Our design tools are continuously developed and validated by a large
development efforts. The latest addition to Wärtsilä’s design capability is the OPTI
Design methodology.
OPTI Design
With OPTI Design the focus is on the vessel’s total propulsive efficiency, which in the
end determines its fuel consumption. This propulsive efficiency depends in turn on the
efficiency of the propeller and the interaction between the propeller and the vessel.
simulation of the complete vessel and propulsion unit. With such simulation, paying
attention to both the propeller design and the details, such as brackets and nozzle
connections and the propulsion unit to the vessel, the overall performance can be
determined. Design features that can be further improved are also revealed, thus
48
Propulsors & Gears
and ProTouch
49
Propulsors & Gears
Wärtsilä fixed pitch propellers are manufactured by the Wärtsilä CME Zhenjiang
Propeller Co., Ltd joint venture company. At this facility fixed pitch propellers with
the joint venture company was established in 2004, more than 2000 propellers have
been produced. Furthermore, Wärtsilä CME is able to take advantage of the extensive
experience and databases of LIPS and Wärtsilä with regard to propeller design and
production technology. The propeller and shaft line design tools are based upon long
experience with calculations, model test results, Computational Fluid Dynamics (CFD),
Propeller efficiency, noise, and vibration requirements are the main considerations for
propeller designs that can be applied for a wide variety of speeds and power
densities, and for any type of ship. The unique Wärtsilä Cunial® propeller material
Replacement Propellers
only!
51
Propulsors & Gears
propeller. The easily (de)mountable blades and the possibility of under water
The BUPs are supplied in stainless steel or bronze. Connections to the propeller shaft
are made using a flange and fit bolts. Most BUPs are delivered with 4- and 5-blade
propellers, but 6-bladed propellers can also be delivered on request. There are no
propeller diameter or weight limits. The flush and compact hub design in combination
with efficiency optimised propeller blades makes the BUP fit for applications where low
Built-up propellers are typically installed on ice-breakers and offshore patrol vessels
The short replacement time needed also benefits vessels with a fixed operating
51
Propulsors & Gears
Coastal and inland propulsion systems are specialized for vessels operating on local
waterways, and for coastal and fishing vessels. Wärtsilä has considerable expertise in
designing propulsion systems for large, fast luxury yachts and government-owned
ships as well as a variety of special vessels, all with their own characteristics. Wärtsilä
supplies fixed pitch propellers, nozzles, and propeller shaft assemblies complete with
Coastal and Inland Waterway Propellers are available in bronze or stainless steel. They
class II, I or S. Wärtsilä has the capability to deliver fixed pitch propellers for any
diameter above 1000 mm, although for the coastal and inland waterway segment they
52
Propulsors & Gears
Fitting a nozzle increases the thrust at relatively low ship speeds. This allows for
number of revolutions and the capacity of the engine. The improved Wärtsilä High
Performance nozzle, the type HP nozzle, when combined with Wärtsilä propellers, can
provide up to 5% more thrust than conventional nozzles in bollard pull conditions. The
nozzle profile offers a double profiled cross section at the inlet side of the nozzle.
Wärtsilä EnergoPac
EnergoPac is the optimised propulsion and manoeuvring solution for coastal and
ocean going vessels. The key objective is to reduce the vessel’s fuel consumption by
integrating the design of both the propeller and rudder. Each EnergoPac is designed
to fit the intended vessel and to meet its specific requirements; this allows EnergoPac
• Excellent maneuverability
53
Propulsors & Gears
Fuel savings
separation behind the propeller hub. Extended studies show that for the same
course-keeping capabilities, EnergoPac will create less drag than conventional rudder
systems.
Typical applications
EnergoPac can effectively reduce the operational costs for any vessel with a
considerable share of free sailing time in its operational profile. It works very well for
propellers with a relatively large propeller hub. The potential savings are large for
vessels with highly loaded controllable pitch propeller systems, such as Ro-Ro
Cost savings
The reduction in fuel consumption depends very much on the vessel type, its
operational profile, and on the reference propeller and rudder. For any application, the
power savings can be estimated by Wärtsilä. The estimate is based on the vessel
design, its operational profile and other factors. Proven savings in the power required
54
Propulsors & Gears
EnergoProFin
The Wärtsilä EnergoProFin is an energy saving propeller cap with fins that rotate
together with the propeller. It improves propulsive efficiency by weakening the hub
vortex, and by recovering kinetic energy from the rotating flow aft of the propeller
blades. This solution provides average fuel savings of 2%, with a payback time of less
than one year. The Wärtsilä EnergoProFin can be applied for both Controllable and
EnergoFlow
creates optimal inflow for the propeller by guiding one side of the stern flow in the
consists of multiple curved fins and a ring attached to the ship’s hull to prevent the
power losses that typically occur in a propeller’s slipstream. The curved fins enhance
the propeller’s efficiency while keeping resistance at acceptable levels. Hence, optimal
EnergoFlow shape.
The power savings that can be achieved with EnergoFlow varies, depending on the
specifics of each case. Nevertheless, indications are depicted in the illustration above,
based on ship type. Bulk carriers can achieve the highest fuel savings, in the range of
10%. Faster vessels which are already relatively efficient in propulsion terms, could
55
Propulsors & Gears
Steerable Thrusters
Wärtsilä steerable thrusters are available in different series covering a wide range of
underwater mountable thruster series, are based on the reliable designs of the
standard steerable thruster series. Together they form a steerable thruster range that
The Wärtsilä Steerable Thruster (WST) series is intended for tug or offshore support
vessel applications, and for river/inland waterway vessels. These thrusters have a light
ice class capability and can be combined with high- speed engines of up to 1800
The thruster can be fully retracted in the hull for transit or shallow draught operation.
All WST-R feature an 8° tilted propeller gearbox design to minimize thruster-hull and
The small footprint and low weight make the WST-24R and WST-32R the ideal
The top of the retractable thruster range is covered by the WST-65RU. This is a
exchanged under water to optimise maintenance when docking of the vessel is not
with several added features, such as an increased power range, an 8° tilted propeller
gearbox, and the Wärtsilä Thruster Nozzle to provide superior and reliable DP
performance. The underwater mountable thrusters from the LMT series are available
Based on the above mentioned thruster series, special thruster designs are available,
56
Propulsors & Gears
Steerable Thrusters
57
Propulsors & Gears
Steerable Thrusters
1) Based on two installations, 100% power, FP propeller in nozzle designed fo bollard pull, thrust deduction included
Key benefits
• Superior hydrodynamic performance for high bollard pull or maximum propulsion
efficiency
• Reduced number of external connections and field bus technology for ease of
installation
• Wärtsilä ProTouch controls with ergonomic levers and intuitive touch screen
Options
• Mechanical Z-drive configuration compatible with engine speeds ranging from
• Mechanical drive configurations have an integrated power take off for steering,
• FP propeller and integrated medium duty hydraulic clutch (slipping range up to
• Two nozzle types: optimized for bollard pull or free sailing (FP propeller only)
• Finnish-Swedish (Baltic) ice class up to 1B, Russian (RMRS) ice class up to Ice-
3 or equivalent Russian river register (RRR) ice class (except WST-32 and WST
58
Propulsors & Gears
Steerable Thrusters
1) Estimated minimum (FPP Electric drive and smallest prop / nozzle / propeller arm length (PAL)) and maximum (CPP
59
Propulsors & Gears
Retractable Thrusters
Wärtsilä retractable thrusters have been selected for vessels worldwide, operating in
the most demanding environments. Our customers are secure in the knowledge that
each system from Wärtsilä conforms to the highest performance and reliability
standards, can deliver more efficient thrust that reduces fuel consumption and are
Key benefits
• High thrust performance with WTN type nozzle (WST types) or Wärtsilä HR nozzle
• Outboard part exchangeable under water for maintenance or overhaul (WST-
65RU)
• Wärtsilä ProTouch controls with ergonomic levers and intuitive touch screen
displays
Options
• L- and Z-drive with horizontal floating shaft and quick connect clutch (except
WST-65RU)
• Fixed pitch (FP) or controllable pitch (CP) propeller (LMT types CS/FS
175/200/225/250)
• 3° tilted nozzle (standard), 5° tilted nozzle or straight execution (LMT type)
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Propulsors & Gears
Retractable Thrusters
Remarks
Other input speed / power level combinations are available on request. Maximum power level depends on classification
society.
Selections are not valid for classification with ice class. Values for dimensions and weight are indicative.
Dimensions and weights can vary depending on propeller type, propeller size and project specific customizations.
1) Height indication H2 is for L-drive execution, including generic E-motor
2) Indicative weights without auxiliaries and oil
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Propulsors & Gears
Retractable Thrusters
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Propulsors & Gears
Key benefits
• Maintenance or overhaul without the need for dry docking the vessel
• High reliability
• Easy installation
• Wärtsilä ProTouch controls with ergonomic levers and intuitive touch screen
displays
Options
2) Tilted nozzle
All weights and dimensions for 3° tilted nozzle (1510 through 2510 type) or 8° tilted propeller shaft (WST-45/55/65U type)
4) Including top cover, bottom cover, pipe covers, valves and position sensor
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Propulsors & Gears
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Propulsors & Gears
Transverse Thrusters
Key benefits
• Wärtsilä Protouch controls with ergonomic levers and intuitive touch
Options
• CP or FP propeller upto WTT-40 type; CP propeller for WTT-45 and CT3500
types
• Compatible with environmentally acceptable lubricant (EAL) for EPA VGP 2013
• Tailor-made tunnel with tunnel ends cut according to hull form and additional
1) Maximum power level is valid for uni-directional rotation (CPP). Depending on propeller type and class society, lower power
2) Version with CP propeller including a standard tunnel with E-motor support, excluding E-motor.
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Propulsors & Gears
Transverse Thrusters
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Propulsors & Gears
Waterjets
• A compactly designed axial pump with excellent efficiency, cavitation and noise
characteristics.
• High performance components in stainless steel to prevent wear and corrosion.
friendly
solution.
• Water lubricated Face type sterntube seal with an optional inflatable emergency
seal.
• Inboard mounted thrust bearing block, for increased life and easy maintenance.
• Inboard hydraulics provide an environmental friendly solution, increased life and
Key benefits
A Plug and Play waterjet concept, with all auxiliary systems pre-installed on the skid.
The waterjet package is welded into the hull and the yard connections are reduced to
a minimum.
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Propulsors & Gears
Waterjets
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Propulsors & Gears
Waterjets
The Wärtsilä WXJ modular waterjets represent the state-of-the-art in this field,
customisation with a wide variety of options available depending on the vessel type.
The Wärtsilä WXJ series features an improved axial pump design, which boosts
cavitation margins help reduce the environmental impact by lowering noise levels. This
axial pump design comes with a 25% reduction in mounting flange diameter, 10%
overall weight reduction and a 35% increase in cavitation margin compared to its
predecessor, the “LJ type” with a mixed flow pump design, while the small transom
Key benefits
Wärtsilä axial waterjets are single stage, compact, high performance systems that
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Propulsors & Gears
Waterjets
This results in much less space being needed on the vessel’s transom, and greatly
increased waterjet cavitation margins for optimum vessel operational flexibility. For
naval architects, the axial jet technology creates the possibility to apply a larger power
• Inboard mounted thrust bearing block, for increased life and easy maintenance
• Best performance in the market based on more than 35 years of waterjet
experience
corrosion
• Impeller tip clearance guaranteed due to axial shape and no risk of impeller
housing
collisions.
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Propulsors & Gears
Waterjets
Express 4 – A high-speed RoPax ferry with a compact axial flow jet solution
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Propulsors & Gears
Waterjets
The selection graphs indicate the jet size required based on the relation between the
vessel’s engine power and design speed. For instance, a ship with four 1250 kW
engines and a corresponding vessel speed of 33 knots will need four 510 size
waterjets. A ship with a design speed of 40 knots at 1250 kW power can use 450
size waterjets. The correct jet size is thus indicated by the line above the intersection
To ensure an optimised propulsion system for your vessel, we recommend that you
contact Wärtsilä during the early stages of the design work. Please contact us for an
optimised jet selection based on specific vessel design parameters, the operational
profile, or for details of waterjets above 50 knots or 30 000 kW. DXF/DWG format
general arrangement drawings of the most often used sizes are available.
Applications
applications.
• High speed vessels; waterjets have better propulsion efficiency at ship speeds
• Shallow draft vessels; the integrated steering function provides benefits for
rescue vessels, inshore passenger ferries, landing crafts & special work boats.
• High power density; the pressure built-up in the waterjet inlet allows small
dimensions.
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Propulsors & Gears
Waterjets
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Propulsors & Gears
Control Systems
intuitive and compact design controls. ProTouch gives the power to the user.
Key benefits
Compact design: The entire footprint of the system is significantly reduced to allow
interfaces provides a flexible solution for any vessel layout. The system fits all the
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Propulsors & Gears
Control Systems
Safety: the system improves safety, both at sea and in port, by removing the visual
challenge of finding critical information. It provides the user the relevant information
when needed.
touchscreen technology, the operator has handy access to all functions and
information. The system will guide the user when a more complex sequence or action
Simpler installation and maintenance: The system minimizes installation time and
costs, simplifies commissioning, and reduces maintenance needs. This is because the
Integration with other systems: The system enables easy integration via serial
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Electric Propulsion
Electric Propulsion
Diesel-electric Propulsion
Wärtsilä is fully aligned with the growing trend in the market for dieselelectric propulsion
systems. Frequency converter fed propulsion systems offer advantages for ships with
• Reduced emissions
Because of these features, electrical propulsion systems are being used, particularly on
ships with special requirements, such as cruise liners, ferries, cable and pipe layers,
research vessels, icebreakers, multipurpose vessels, patrol boats, supply and rescue
permanent magnet motors used for electric propulsion, pumps, compressors, winches
and for drilling operations. These converter systems use power transistors in the motor
inverter and can be configured with either a 6, 12, 18 or 24 pulse rectifier front end, or
an active front end inverter which allows regeneration and can also remove the need
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Electric Propulsion
Electric Propulsion
Furthermore, these can be configured into the Wärtsilä Low Loss Concept topology, or
DC-Hub Systems
For inverters connected to the same DC link, the electronic DC breakers work
independently of each other. The multi-drive system connects to the main grid through
solar panels or fuel cells. The system allows electrical operation with variable speed
engines.
designed with direct current (DC) intermediate circuits. They comprise thyristor
rectifiers on the mains side and a thyristor inverter on the motor side. LCI converters
are available for supplying synchronous motors in the high power ranges.
Harmonic voltage distortion causes disturbances for the network and loads, and
impairs the performance of the vessel. By reducing these to a minimum, the Total
reduces THD by splitting the distribution bus into two sections, and placing the
This means that fewer transformers are needed for installations with more than 2 x
drive power output connected. Where more than 2 x drives are installed, the
The design of the LLC also improves system redundancy. This means that in the case
of failure in one of the switchboards, the drive can continue to operate – albeit with
reduced power.
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Hybrid Solutions
Hybrid Solutions
Wärtsilä HY
Wärtsilä has leveraged its technological leadership in both engines and electrical &
The various components are tuned and harmonized into a single entity through the
enhanced Energy Management System. Full control over all the hardware and software
segments and can be optimized for specific operating profiles, even throughout the
vessel lifecycle.
• Smokeless operation: the synergy between the energy storage system and the
engine allows the avoidance of visible smoke emissions under all normal
conditions
• Instant load taking: the module is able to react instantly to fast and broad changes
emergency back-up algorithms and built-in redundancy of the power sources
• Start & stop: at low loads the power is supplied exclusively by the energy storage
system until it reaches a pre-set minimum state of charge. At this point the engine
is automatically activated, providing power to the ship and simultaneously re-
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Hybrid Solutions
Hybrid Solutions
• Green mode: when selected by the operator, power is supplied exclusively through
the energy storage system until the pre-set minimum state of charge is reached
• Power boost: the engine and energy storage system can supply power at the
• Peak shaving: load fluctuations are absorbed by the energy storage system,
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Hybrid Solutions
Hybrid Solutions
Wärtsilä Zero
free or carbon neutral fuels. Energy storage systems such as electrical batteries,
Wärtsilä has developed solutions for harvesting renewable energy from shore through
an innovative fast charging solution or shore connection system for pure electric energy
batteries in combination with supercapacitors and/or fuel cells that when driven by
hydrogen or other green fuels offer an emission free solution. The fuel cells can also be
driven by LNG or similar energy carriers, thereby obtaining a cleaner energy system
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Hybrid Propulsion
Hybrid Propulsion
HY Upgrade
Hybrid solutions are not only for new build vessels. Existing ships can be retrofitted to
benefit from the multiple advantages offered by Wärtsilä’s advanced hybrid technology.
Wärtsilä completed its first hybrid conversion project already in 2014. The ‘Viking
Lady’, a platform supply vessel owned by Eidesvik Offshore, was fitted with a Wärtsilä
confirmed fuel savings of 15%. Less fuel burned also means fewer exhaust emissions.
When in transit mode in heavy weather conditions, the ‘Viking Lady’ uses the battery
to reduce frequent load variations on the engines. This allows one less genset to be
used because a higher average load can be maintained. In critical operations, the
adopted. This allows one engine and a single battery to operate at the most efficient
loading.
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Hybrid Propulsion
Hybrid Propulsion
The Hybrid Power System combines different power sources with energy storage
devices. The introduction of the hybrid power system, and its integration with
improvement in efficiency by running the engines on optimal load and absorbing many
The introduction of Hybrid Power Systems with energy storage is a new and attractive
way of reducing both fuel consumption and exhaust emissions. Utilising the latest
wireless charging technology, Wärtsilä can offer total electrical plug-in solutions and
Wärtsilä’s system design incorporates energy storage capabilities in the form of battery
packs, hybrid control systems, power transfer systems, and energy storage systems.
sustainable operations with different fuels. Annual fuel savings have proven to be
By optimising performance, the engines can be operated with optimal specific fuel
consumption.
Wärtsilä’s ESS reduces transient loads in engines. Transients increase both fuel
The Wärtsilä Hybrid Control System controls and monitors the overall operation of the
• Control strategies to optimise the performance and reduce the transient loads of
engines.
whereby the batteries take the load required to run the thrusters, while the engine is
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Hybrid Propulsion
Hybrid Propulsion
Power redundancy needs require engines to run at low loads. With the battery
providing the redundant power, the engine can operate more efficiently at higher loads.
Reduced maintenance
Thanks to more stable operations and reduced engine running hours, maintenance
Better performance
The fast power response from the energy storage system means that vessel
performance will also be more responsive. This may also increase dynamic
propulsion, optimised energy efficiency, and hotel load and cargo energy efficiency with
Smart service loads. Voyage planning will secure the best route efficiency.
Energy control and optimisation of the complete vessel energy systems are achieved
throughout the vessel by implementing solutions such as the Energy management and
Hybrid control system to manage and operate the Propulsion and Power electric
Engine and power supply, Electrical power conversion systems, Propulsion controls,
Waste
heat recovery, Energy storage systems (e.g. batteries), fuel cells, solar panels and
system control, synchronisation, AVRs, and load sharing, including Power electrical
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Power Generation
Power Generation
Wärtsilä provides Shaft Generators (SG), driven by the main engine to supply power to
the mains within the 500 kW to 9000 kW range. The power generation has to function
properly at changing propulsion shaft speeds, when the ship travels at different
speeds, or in the case of very fast speed changes caused by heavy seas. To allow a
stable frequency and voltage in the mains while the main engine speed is changing – a
and more ships are being equipped with such systems. The use of shaft
• Continuous parallel operation together (two SG systems) or with diesel generator
sets
On ships with fixed pitch propellers, the speed is set via the propeller speed. If using
controllable pitch propellers, the shaft speed and the propeller pitch are adjusted
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Power Generation
Power Generation
combinator mode. Even with this type of propeller, it is nevertheless economical to use
shaft generator systems with a frequency converter for variable speeds in order to
• Unrestricted operation during main engine speed variations resulting from heavy
• Continuous parallel operation together (if 2 shaft generator systems are provided)
• Starting and shut-down of large consumers without inadmissible voltage and
• Operation, including synchronisation, in the same way and with the
PTI/PTO shaft generator systems with a power range of 3.6 MW to 9.0 MW with 6.6
kV are required. They are also required for lower power demand with high redundancy
of the propulsion system, PTI/PTH/PTO SG. Systems including power take home drive
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Power Distribution
Power Distribution
Power Distribution
Wärtsilä provides both low voltage and medium voltage switchboards that meet the
most stringent requirements. Due to the growing demand for more available power,
medium voltage – instead of low voltage distribution systems – are provided in the 6.6
kV or 11.0 kV range.
For the protection and control of power supply systems, Wärtsilä integrates its own
developed protection system. The micro-processor based protection system covers all
necessary protection functions for low and medium voltage power supply systems, as
well as for the generators and power consumers. If required, a power management
function for controlling the power supply system is also available. The protection
systems via data bus. Interfaces to automation systems and other control systems can
be provided.
• Operation, control and monitoring of all important generator data, status indication
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Power Distribution
Power distribution
The system is mainly intended for the protection and control of the following listed
applications:
• Emergency generators
• Transformers
• Motors
• Shore connections
• Filters
• HR grounding
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Power Distribution
Power distribution
Medium Voltage
Special Switchboards
Distribution Boards
• Feeder circuits: moulded case circuit breakers or fuse switch combination
Special Boards
For protection and control of the power supply, Wärtsilä integrates its own developed
protection system, the GPM 500.
The system covers all necessary protection functions for low and high voltage
systems, as well as for generators and consumers.
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Power Distribution
Wärtsilä helps ship operators and port authorities to meet increasingly stringent
environmental regulations by enabling ships to meet their electrical power
requirements, even when the engines are shut down. By taking the power from the
shore, instead of from the engines, there are no exhaust emissions or noise pollution.
Through its Shore Connect solution, Wärtsilä provides the technology to make this
possible.
The system design is essentially based on meeting port needs while also conforming
components, such as the cable reel, a medium voltage switchboard, and a control
and monitoring facility that includes an interface between ship and shore. A
containerised for siting at a specific on- board location. Upon request, we can
develop tailor-made solutions for all vessel types. We offer the full range of turnkey
integration options.
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Lifecycle Services
Lifecycle Services
With the industry's most complete global network of service locations, Wärtsilä
supports its marine customers wherever they are located, and whenever help is
needed. Our comprehensive range of services cover all from OEM parts, field- and
Spare parts
Wärtsilä offers a complete range of original spare parts, tools and consumables for
Wärtsilä equipment and various brands. Original Wärtsilä spare parts meet strict
demands and have passed through extensive laboratory and field tests in order to
ensure that they comply with the required specifications and are in accordance with
professional support from Wärtsilä’s global network, ensure that customers always get
Key benefits:
• Durability
Order your spare parts through Wärtsilä network or via Wärtsilä Online 24/7. Wärtsilä’s
delivery
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Lifecycle Services
downtime. Wärtsilä offers both, enabling you to focus on your core business. We have
you with timely support wherever you need it. Partnering with Wärtsilä for field services
gives you access to expert engineering knowledge and certified maintenance and
As an OEM service provider we can offer you the latest technologies and repair
methods as well as greater procurement and contracting flexibility with global quality
standards. Wärtsilä workshops are equipped with modern tools and machinery
operated by skilled personnel. We can handle all types of maintenance and repair
Regardless of where the work is being performed, we ensure that it meets the local
legislation and the requirements of the relevant international standards, including ISO
9001, ISO 45001 and ISO 14001, International Maritime Organization standards and
those set by major classification societies. Safety and quality are our top priorities in
everything we do.
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Lifecycle Services
Wärtsilä Online
Wärtsilä Online is a platform that allows all our customers to collaborate with Wärtsilä,
find information and order spare parts to maintain their equipment. With Wärtsilä
Online you can access and manage your installations and services at anytime,
anywhere and with any device. It is always on and always there making your work
more efficient, productive and reducing manual steps. 24/7 access to real-time
Wärtsilä Online provides you a secure and easy access to search product specific
information and services documentation, procure spare parts and track & trace your
deliveries, plan and keep track on service and maintenance activities and much more.
Wärtsilä Online is a direct and reliable platform to collaboration with Wärtsilä fast and
transparently.
• Commerce
• Training
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Lifecycle Services
Wärtsilä Lifecycle Solutions improve the reliability of your assets and optimise vessel
performance. Supported by generations’ worth of knowledge combined with the
power of AI and predictive analytics, we can guide you in finding a sustainable solution
to suit your operations. With Lifecycle Solutions we provide better and faster support,
we optimise your maintenance and improve cost predictability, and ensure better asset
performance by offering performance guarantees.
Key benefits:
Solutions - choose the right level of support for your marine assets
We ensure the operational We improve long-term cost We provide better and faster
reliability, performance and predictability and availability support via expert access to
availability of your marine by planning and scheduling your operational data. We
assets. Quantifiable maintenance to suit your also help you to forecast
performance targets are operational needs. Our scheduled maintenance
mutually agreed based on Expertise Centres support activities to support you in
your business needs, and you proactively, whenever maintenance planning.
we guarantee that those and wherever needed.
targets will be reached and
maintained.
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Lifecycle Services
Digitalisation and connectivity enables a full range of new services but data is not
enough in itself to generate improvements. Creating value requires analytics and
technical experts who can make sense of the data and give actionable advice.
Wärtsilä Expertise Centres around the world have this expertise to support, predict
and optimise your asset performance. In practice, this is done through services such
as Expert Insight, Operational Support and Data Driven Maintenance which are
available as part of the Wärtsilä Lifecycle Solutions agreements.
The Expert Insight takes predictive maintenance to the next level by utilising artificial
intelligence and advanced diagnostics. Expert Insight analyses asset data according to
a set of rules based on Wärtsilä’s vast installed base, and artificial intelligence is used
to model asset behaviour. Should anomalous asset behaviour occur and be detected,
it is flagged to specialists at Wärtsilä Expertise Centres, allowing them to support the
customer proactively with an appropriate resolution to the issue. The combination of
AI, advanced diagnostics, and the company’s extensive equipment expertise greatly
enhances the reliability, efficiency, and safety of the installed equipment.
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Lifecycle Services
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Lifecycle Services
Lifecycle Upgrades
The maritime industry is in a period of transition towards more sustainable and energy-
efficient operations, driven by the need to meet increasingly strict regulatory
requirements. As a result, ship owners and operators are seeking technologies that will
help them to stay compliant and competitive while at the same time maintaining
profitability.
To ensure that your assets deliver maximum value throughout their lifecycle you will
need to make important decisions on issues like modernisations, modifications,
upgrades and major repairs. A reliable partner that can provide future-proof solutions
and is capable of managing every aspect of complex retrofit and upgrade projects is
therefore invaluable.
Wärtsilä offers wide range of upgrades and modernisations including engine upgrades,
propulsion system upgrades, fuel conversions, exhaust treatment retrofits, hybrid
retrofits and much more. Our professional service project managers and teams have a
proven track record of running smooth, successful projects. We can take care of the
complete project from feasibility studies, financing solutions, solution proposals,
execution planning and implementation to full engineering, procurement and
construction (EPC) solutions. Because every situation is unique, our approach is highly
flexible and adaptable to your needs, resulting in better predictability, broader scope
and minimised downtime.
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Lifecycle Services
Training Services
Competence and learning are key to success in any business. The Wärtsilä Land and
Sea Academy (WLSA) provides high-quality training services for the marine and energy
markets, ensuring that your personnel have a strong knowledge of how to manage
your assets. Our global training solutions cover all aspects of managing and operating
your installation, including maintenance, safety, availability, reliability and performance.
The courses and programmes are delivered in the way that works best for your
organisation – whether that’s on board, on site, in training centre or online.
Training and competence management have been a vital part of our operations for
decades. We support you in assessing, developing and managing your staff’s
competences to help you achieve your goals. With products becoming more
sophisticated and competent personnel harder to find, training is playing an
increasingly important role. With Wärtsilä Training Services you will get:
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Wärtsilä is a global leader in smart technologies
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