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MAIN TECHNICAL DATA Cylinder bore Piston stroke Cylinder output Speed Mean effective pressure Piston speed Voltage Alternator efficiency Fuel specification: Fuel oil
200 mm 280 mm 130 - 200 kW/cyl 1000 rpm 22.5 - 28.0 bar 6.7 - 9.3 m/s 0.4 – 13.8 kV 0.94 – 0.96
730 cSt/50°C 7200 sR1/100°F ISO 8217, category ISO-F-RMK 55 SFOC 188-196 g/kWh at ISO condition ± 5% tolerance Rated power: Propulsion engines Output in kW/bhp at 1 000 rpm
Engine type
C2 -output
4L20 6L20 8L20 9L20
C3 -output
kW
bhp
kW
bhp
720 1080 1440 1620
980 1470 1960 2200
800 1200 1600 1800
1085 1630 2175 2450
Principal engine dimensions (mm) and wet weights (tonnes) Engine type
A*
A
B*
B
C*
C
D
4L20 6L20 8L20 9L20
– 3292 4011 4299
2510 3108 3783 4076
– 1528 1614 1614
1348 1348 1465 1449
– 1580 1756 1756
1483 1579 1713 1713
1800 1800 1800 1800
E
F
H
K
N*
Weight*
4L20 6L20 8L20 9L20
325 325 325 325
725 624 624 624
155 155 155 155
980 980 980 980
– 589 708 696
7.2 9.3 11.0 11.6
For this engine type the dimension B refers to the highest point of the engine. Weight with liquids (wet sump) but without flywheel. *Turbocharger at flywheel end.
Rated power: Generating sets Engine type 4L20 6L20 8L20 9L20
C3 -output C2 -output 900 rpm/60 Hz 1000 rpm/50 Hz 900 rpm/60 Hz 1000 rpm/50 Hz Eng. kW Gen. kW Eng. kW Gen. kW Eng. kW Gen. kW Eng. kW Gen. kW 680 1020 1360 1530
645 970 1290 1455
720 1080 1440 1620
685 1025 1370 1540
740 1110 – 1665
700 1055 – 1580
800 1200 – 1800
760 1140 – 1710
Principal genset dimensions (mm) and weights (tonnes) Engine
A*
H*
I
L*
M
Weight*
4L20 6L20 8L20 9L20
4910 5325 6030 6535
1770/1920 1770/1920 1920/2070 2070/2300
1800 1800 1800 1800
2338 2243/2323 2474/2524 2524/2574
1168 1299 1390 1390
14.0 16.8 20.7 23.8
* Values are based on standard alternator, whose type (water or air cooled) and size affects width, length, height and weight. Weight is based on wet sump engine with engine liquids. Gen. output based on generator efficiency of 95%.
Fuel Quality Limits Viscosity Density CCAI CCR Pour point S V
Range (cSt) (kg/m3) (%) (°C) (%) (ppm)
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DMX min 1.8 – – – – – –
15
RML55 max 730 1010 870 22 30 5 600
15