Wärtsilä Corporation - 20 Series

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For more details visit www.marinemegastore.com or call 0871 8732404

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)

For more details visit www.marinemegastore.com or call 0871 8732404

DMX min 1.8 – – – – – –

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RML55 max 730 1010 870 22 30 5 600

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