Page 40: of Maritime Reporter Magazine (November 1996)

PROPULSION UPDATE "The Series 2000 and

Series 4000 have been developed jointly with our part- ners Detroit Diesel Corp."

Dr.-Ing. Gerd-Michael Wolters, a member of the MTU Friedrichshafen board, at press confer- ence introducing the new engines.

The new 16V 4000 for marine main propulsion produces 2,720 kW@ 2,100 rpm.

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JOINER CONTRACTOR

CRUISE SHIPS • DINNER BOATS • FERRYBOATS • CASINO VESSELS

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P.O. Box 237 • Lusby, MD 20657 • Fax: 410-326-9125 410-326-9122

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Reliability 42

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Series 2000 engines imitate the basic structure of the major components and subassemblies to

Mercedes. The engines were derived from the

Mercedes-Benz Series 500 engines, which are pro- duced in large quantity for trucks.

The rugged, torsionally rigid, gray cast-iron crankcase was designed for minimal weight and accommodates the cylinder lines, crankshaft and central camshaft bearings as well as the injection pumps. It also contains the major passages for lube oil and coolant circulation, and provides attachment points for the engine mounts, as well as for various ancillary and accessory equipment.

Together with the respective application-related pistons, the four-valve cylinder heads with central- ly located injection nozzle offer optimum prerequi- sites to tune the combustion for minimum noxious emissions and fuel consumption.

The injection system is the same for all applica- tions; it consists of one high-pressure pump for each cylinder. The pumps are controlled by an electromagnetic solenoid valve, supplying the fuel to the central injectors where it is atomized by up to 1,800-bar injection pressures.

The engines feature a triple-walled exhaust sys- tem. An outer, water-cooled aluminum casing con- structed from tough (but lightweight) extruded sec- tions with integral coolant passages cools and car- ries the exhaust system along the side of the engines. This is designed to ensure that surface temperatures do not exceed the permissible levels, while providing absolute gas tightness. Inside the cooled outer casing, there is another, high-temper- ature-resistant exhaust pipe. This is designed to ensure that the flow of exhaust gases comes into direct contact with the cooled outer casing as little

Series 2000

Technical Specifications

Engine model 8,12 and 16 cylinder diesel engines, 4-stroke

Vee angle 90 degrees

Bore 130 mm

Stroke 150 mm

Cylinder displacement 1.991

Total engine displacement 11.94 to 31.841

Idle speed 575 rpm

Rated speed 1,500 to 2,300 rpm

Power per cylinder 34 to 84 kW

Total power 270 to 1,343 kW

Mean effective pressure 13.6 to 22 bar

Average piston speed 7.5 to 11.5 m/sec.

Supercharging Single-stage with two exhaust turbochargers and charge-air cooling; optional sequential turbocharging

Injection Electronically controlled high pressure injection with unit injectors

Starting system Electric starter

Maritime Reporter/Engineering News