L21/31H

Basic information

Bore:
210 mm
Stroke:
310 mm
Speed:
900 / 1000 rpm
Frequency:
50 Hz (1.000 rpm.) / 60 Hz (900 rpm.)
Main effective pressure:
22,4 / 23,6 bar
ENGINE CHARACTERISTICS
  • Flexible configuration: depending on the power requirements, 5 to 9 cylinder configurations with a power range from 950 to 1,800 kW can be used.
  • High reliability: L21 / 31 is designed for long intervals between overhauls regardless of operating conditions and fuel.
  • Improved operating conditions: design features, such as ship-type connecting rods, transverse-flow cylinder covers, a resistant motor housing, a condensate separator and a lambda regulator, provide perfect operating conditions.
  • Economic justification: this engine is designed for high power output with low fuel and lubricating oil consumption.
  • Ease of maintenance: internal water and oil flow without piping, support functions in one working interface, a small number of components and a separate unit with cylinders greatly simplify maintenance.

Nominal power

Engine type
1.000 rpm 50 Hz
900 rpm 60 Hz
Eng. kW
Gen. kW
Eng. kW
Gen. kW
5L21/31
1.000
950
950
905
6L21/31
1.200
1.140
1.140
1.085
7L21/31
1.400
1.330
1.330
1.256
8L21/31
1.600
1.520
1.520
1.445
9L21/31
1.800
1.710
1.710
1.625

Mass and dimensions of the generator set

Engine type
A
mm
B
mm
C
mm
H
mm
Mass ton*
5L 21 / 31
—
—
5.860
3.050
21.3
6L 21 / 31
—
—
6.300
3.100
24.3
7L 21 / 31
—
—
6.760
3.100
27.3
8L 21 / 31
—
—
7.210
3.100
30.3
9L 21 / 31
—
—
7.660
3.250
33.3
* – dry weight – whole engine
 
P – free passage between motors, width 600 mm and height 2,000 mm