Specifications
DFP4 2011 Operation Manual
54
DFP4-2011-T10
General
Physical Data
Cylinders 4 Length 718 mm 28.3 in
Cylinder arrangement Vertical in-line Width 553 mm 21.8 in
Bore 94 mm 3.7 in Height 703 mm 27.7 in
Stroke 112mm 4.4 in Weight, dry 247kg 543.4 lb
Cylinder Displacement 0.777 liter 47.4 in³ Max bending @ housing 900 Nm 663.3 lb-ft
Total displacement 3.108 liter 189.6 in³ Max force @ flywheel:
Compression ratio 17.5 : 1 Axial 1500 N 337.8 lb
Combustion system Direct injection Radial 3700 N 833.3 lb
Aspiration Turbocharged
Fuel System Certified Gross Power
Lift pump suction head, max 1.5m 60 in Engine RPM 1760 2100 2350 2650 2800 3000
Lift pump flow @ max rpm 53.1/h 14.0 GPH Kw 34 41 45 45 54 54
Max restriction in fuel supply line 300 mbar 120 in. H2O Hp 45 55 60 60 72 72
Max restriction in fuel return line 200 mbar 80 in. H2O
Max restriction in fuel pre-filter 200 mbar 80 in. H2O Certified Fuel Consumption
Fuel filter type Replaceable cartridge g/kw-hr 255 231 236 249 253 275
lb/hp-hr 0.418 0.379 0.388 0.408 0.416 0.452
Combustion Air System Liters/hr 10.1 11.1 12.6 13.1 16.0 17.6
Combustion air flow @ max rating 370.0m³/h 217.7 CFM Gal/hr 2.7 2.9 3.3 3.5 4.2 4.7
Max allowable clean restriction 50 mbar 20 in. H2O
Max allowable dirty restriction 65 mbar 26 in. H2O Combustion Air
m³/h 200 265 300 350 390 425
Exhaust System
CFM 118 156 177 206 230 250
Exhaust gas flow @ max rating 965.0 m³/h 567.9 CFM
Exhaust temp @ max rating 620°C 1148°F Exhaust Gas
Max allowable back pressure 75.0 mbar 30 in. H2O m³/h 550 730 850 970 1075 1170
CFM 324 430 500 571 633 689
Cooling System
Type External oil coolng Raw Water Flow
Coolant heat rejection % of gross power 63%
Water Temp:
GPM
Max coolant temp @ engine outlet 140°C 284°F 60°F 7 7 9 10 13 14
Max coolant operating pressure 7 bar 101.5 psi 90°F 9 9 11 12 14 16
Lubrication type Forced-feed lubrication
Oil flow at max rpm 40.0 l/min 10.6 GPM
Heat Rejection to Coolant
kW 19.7 23.5 26 27 33
34
Lubrication System BTU/min 1120 1337 1479 1536
1877 1935
Lubrication type Forced-feed lubrication
Oil flow at max rpm 40.0 l/min 10.6 GPM Certifications
Filter volume 0.4 liter 0.423 qt U.S. EPA Non Road Tier 2
European COM 2 (37-75kW)
Electrical
Starter motor 12V, 2.3kw 24V, 4.0 kw
Voltage drop, battery (+), max 1.0V