Operating instructions

2.2 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,
sequential turbocharging and charge-air cooling.
An electronic management system provides engine control and monitoring.
Fuel system with common rail injection
Controlled by the engine electronics, the common rail injection system determines injection pressure, in‐
jection timing and injection quantity independently of the engine speed.
Injection pressures up to 1800 bar ensure optimum fuel injection and combustion conditions.
Charging 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 cooling 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 security and test system with interfaces to re‐
mote control system (RCS) and to monitoring system (MCS).
Electronic engine control unit (ECU)
Closed-loop control:
• Engine speed
• Fuel HP
20 | General Information | MS150061/03E 2012-02
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