© 2004 1

Gen Motor Datasheet BFL912 (1500 min-1 / 50 Hz)

EngineType

F3L912 � � �

F4L912 � � �

F6L912 � � �

Speed [min-1] 1500 1500 1500 1500 1500 1500 1500 1500 1500Net frequency [Hz] 50 50 50 50 50 50 50 50 50Power standard COP PRP LTPPower level -- -- -- -- -- -- -- -- --Exhaust emission standard -- -- -- -- -- -- -- -- --

GeneralAspiration natural natural naturalNo of cylinders 3 4 6 3 4 6 3 4 6Configuration in-line in-line in-lineInjection system direct direct directDisplacement [l] 2.83 3.77 5.65 2.83 3.77 5.65 2.83 3.77 5.65Bore [mm] 100 100 100 100 100 100 100 100 100Stroke [mm] 120 120 120 120 120 120 120 120 120Compression ratio 20 20 20 20 20 20 20 20 20Mean effective pressure [bar] 7.5 7.4 7.5 7.8 7.9 7.8 7.9 8.1 7.9Piston speed [m/s] 6 6 6 6 6 6 6 6 6Rotation (looking at flywheel) counter clock wise counter clock wise counter clock wiseNo of teeth on flywheel ring gear 129 129 129 129 129 129 129 129 129Governor performance

Speed droop (static) mech. gov. [%] 5 – 6 5 – 6 5 – 6Speed droop (static) electr. gov. (EMR/GAC) [%] 0 0 0 0 0 0 0 0 0

Governing standardsto ISO 8528 Parts 1 and 5 G 2 G 2 G 2

Moment of inertiaEngine without flywheel [kg m2] 0.16 0.18 0.28 0.16 0.18 0.28 0.16 0.18 0.28Flywheel (standard genset spec.) [kg m2] 1.02 1.02 1.02 1.02 1.02 1.02 1.02 1.02 1.02

Max. step load acceptance, 1st step [%] 100 100 100 100 100 100 95 95 95Sound power at full load, incl. cooling system5 [dB(A)] 103 104 106.5 103 104 106.5 103 104 106.5Sound press. (1m average, full load), incl. cool. syst. [dB(A)] 90 91 93 90 91 93 90 91 93Weight

Engine dry, w/o cooling system [kg] -- -- -- -- -- -- -- -- --Engine with cooling system [kg] 351 402 541 351 402 541 351 402 541

Lubrication systemOil specification see operation manual see operation manual see operation manualOil consumption (as % of fuel consumption) 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5Oil capacity (sump) [l] 9 11 13.5 9 11 13.5 9 11 13.5Min. oil pressure (warning) [bar] 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5Min. oil pressure (shut down) [bar] 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5Max. permissible oil temperature (oil pan) [°C] 130 130 130 130 130 130 130 130 130

OutputGross output1 [kW] 27.0 35.5 54.0 28.0 37.5 56.0 28.5 38.5 57.0Fan reduction [kW] 0.5 0.5 1.0 0.5 0.5 1.0 0.5 0.5 1.0Net flywheel1 [kW] 26.5 35.0 53.0 27.5 37.0 55.0 28.0 38.0 56.0Electrical output2 [kVA] 28 38 58 29 41 61 30 42 62

Fuel SystemFuel consumption

25% load3 [l/h] 2.8 3.7 5.5 2.8 3.8 5.7 2.8 3.8 5.650% load3 [l/h] 3.8 5.0 7.6 3.9 5.2 7.8 3.9 5.3 7.875% load3 [l/h] 5.2 6.9 10.5 5.4 7.2 10.8 5.4 7.4 10.9100% load3 [l/h] 6.9 9.1 13.8 7.2 9.7 14.5 7.4 10.0 15.025% load [g/kWh] 342 346 342 337 334 337 331 331 32650% load [g/kWh] 234 235 234 233 232 233 231 231 23075% load [g/kWh] 216 216 216 214 214 214 213 213 213100% load [g/kWh] 214 214 214 216 217 216 218 218 220

Max. suction head of fuel feed pump [m] 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5

© 2004 2

Gen Motor Datasheet BFL912 (1500 min-1 / 50 Hz)

EngineType

F3L912 � � �

F4L912 � � �

F6L912 � � �

Speed [min-1] 1500 1500 1500 1500 1500 1500 1500 1500 1500Net frequency [Hz] 50 50 50 50 50 50 50 50 50Power standard COP PRP LTPPower level -- -- -- -- -- -- -- -- --Exhaust emission standard -- -- -- -- -- -- -- -- --

Cooling SystemGeneral engine cooling data

Max. perm. coolant outlet temperature [°C] -- -- -- -- -- -- -- -- --Max. perm. flow resistance (cool. syst. and piping) [bar] -- -- -- -- -- -- -- -- --Max. temperature of coolant (warning) [°C] -- -- -- -- -- -- -- -- --Max. temperature of coolant (shutdown) [°C] -- -- -- -- -- -- -- -- --Temperature at which thermostat starts to open [°C] -- -- -- -- -- -- -- -- --Temperature at which thermostat is fully open [°C] -- -- -- -- -- -- -- -- --Delivery of coolant pump [m3/h] -- -- -- -- -- -- -- -- --Min. pressure before coolant pump [bar] -- -- -- -- -- -- -- -- --Temperature at CAC outlet at standard conditions [°C] -- -- -- -- -- -- -- -- --

DEUTZ cooling systemCoolant capacity (engine) [l] -- -- -- -- -- -- -- -- --Coolant capacity (incl. cooling unit) [l] -- -- -- -- -- -- -- -- --Air to boil (max. permissible cool. air temp. at fan) [°C] -- -- -- -- -- -- -- -- --Fan power consumption4 [kW] 0.5 0.5 1.0 0.5 0.5 1.0 0.5 0.5 1.0Cooling air flow [m3/h] 1565 1810 2610 1565 1810 2610 1565 1810 2610Air pressure loss 10 10 10 10 10 10 10 10 10

Heat BalanceHeat dissipation (engine radiator)6 [kW] -- -- -- -- -- -- -- -- --Heat dissipation (CAC)6 [kW] -- -- -- -- -- -- -- -- --Heat dissipation (convection) [kW] 23 29 45 23 29 45 23 29 45

Inlet / Exhaust DataMax. intake depression (Switch setting) [mbar] 20 20 20 20 20 20 20 20 20Combustion air volume [m3/h] 108 144 216 108 144 216 108 144 216Max. exhaust back pressure [mbar] 30 30 30 30 30 30 30 30 30Max. exhaust gas temperature [ºC] 460 455 460 485 490 485 510 510 530Exhaust gas flow (at above temp) [m3/h] 256 336 509 264 353 527 273 362 558Exhaust flange / pipe diameter [mm] 66 66 66 66 66 66 66 66 66

Electrical SystemVoltage [V] 12 12 12 12 12 12 12 12 12Starter [kW] 3 3 3 3 3 3 3 3 3Alternator output [A] 55 55 55 55 55 55 55 55 55Batteries (minimum capacity, cold start limit -5°C) [Ah] 1 x 110 1 x 110 1 x 110

! Data under examination1Ratings in accordance with ISO 3046.2Ratings in accordance with ISO 8528, based on alternator efficiency of 85% to 89%.3At calorific value 42700 kJ/kg + 5 %, density 0.835 kg/dm3, temperature 280 K.4Technical data and max. permissible torque for fan drive see data sheet.5Sound power values measured in accordance with ISO 6798.6The heat quantities are valid for the dimensioning of the cooling system. They are given for the engine with the highest fuel consumption.For further information see ELTAB / Pocket book.For further application guidance see DEUTZ Installation Manual.All data are provided for informational purposes only and are subject to amendment.