3.2 Product description
Description of the engine
Engine
The engine is a liquid-cooled four-stroke diesel engine with c.c.w. direction of rotation, direct injection, se-
quential turbocharging and charge-air cooling.
An electronic management system provides engine control and monitoring.
Fuel system with common-rail injection
Controlled by the electronic engine management system, the common rail injection system determines injec-
tion pressure, injection timing and injection quantity independently of the engine speed.
Injection pressures up to 1800 bar ensure optimum fuel injection and combustion conditions.
Turbocharging system
The charging system comprises charge-air system, exhaust system and sequential turbocharging.
The exhaust system is equipped with triple-walled, water-cooled exhaust lines.
The triple-walled design permits
• low surface temperature,
• reduced thermal load,
• absolute gas-tightness
Lube oil system
Wet-sump forced-feed lubrication system
Components supplied with oil:
• Bearings
• Piston cooling
• Control and actuating elements of the sequential turbocharging system
Cooling system
• Two separate circuits:
– Engine coolant
– Raw water
• Coolant cooling by raw water-cooled plate-core heat exchanger
• Thermostat-controlled coolant system
• Coolant-cooled / preheated charge-air
• Coolant-cooled fuel return
Electronic system
Electronic control and monitoring system with integrated safety and test system with interfaces to the Re-
mote Control System (RCS) and to the Monitoring and Control System (MCS).
Connection box EIM (Engine Interface Module)
The Engine Interface Module (EIM) is the central connection box on the engine. It covers the entire minimum
scope of a Series marine engine. It has no controls or parts requiring maintenance.
20 | General Information | M015650/06E 2018-05
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