2.2 Product description
Description of the engine
Engine
The engine is a liquid-cooled four-stroke diesel engine, rotating counterclockwise (seen from driving
end), with direct injection, sequential turbocharging and charge air cooling.
The engine is monitored by an engine control and monitoring system (MDEC).
Monitoring in the engine room is facilitated with the local engine control and monitoring unit (LOP).
Fuel system
Electronically controlled common rail injection system with high-pressure pump, pressure accumulator
(rail) and single injectors.
The electronic control unit controls
• Injection start
• Injection quantity
• Injection pressure
Exhaust system
The exhaust system is equipped with triple-walled, water-cooled exhaust lines.
The triple-walled design permits
• low surface temperature,
• reduced amount of heat to be dissipated by the coolant,
• absolute gas-tightness.
Turbocharging
Sequential turbocharging with internal, engine-coolant-controlled charge-air cooling. The right-hand ex‐
haust turbocharger is cut-in and cut-out with electronically controlled, hydraulically actuated flaps.
Cooling system
Engine cooling as split-circuit cooling system with plate-core heat exchanger.
Heating of the charge air in idle and low-load operation prevents white smoke formation.
Seawater only circulates in the engine coolant cooler and seawater pump.
Service block
The service components are mounted at the auxiliary PTO end.
The layout permits easy access for maintenance.
Service components:
• Raw water pump, coolant pump
• Fuel duplex filter, switchable
• Lube oil multiple filter, switchable
• Centrifugal lube oil filter
• Coolant expansion tank
Electronic system
Electronic control and monitoring system with integrated security and test system with interfaces to re‐
mote control system (RCS) and to remote control system (MCS).
MS15021/01E 2012-02 | General Information | 21
TIM-ID: 0000002179 - 003
