QSK50 Land Based Drilling Power Modules - Cummins Engines

Power module specificationGovernor regulation classISO8528 Part 1 Class G3Voltage regulation, no load to full load ± 0.5%Random voltage variation ± 0.5%Frequency regulationIsochronousRandom frequency variation ± 0.25%EngineEngine manufacturerCummins Inc.ModelQSK50 - DR1480Design4 cycle, V-block, turbocharged and after-cooledCylinder block configurationCast iron, 60°V, 16 cylinderAspirationTurbocharged and low temperature aftercooledGross engine power output 1480 hp (1104 kW m)Displacement 50.3 liter (3087 in 3 )Fuel systemDirect injection: number 2 diesel fuelFuel filterTriple element, 10 micron filtration, spin on fuel filters with waterseparatorStandard cooling system50 °C high ambient radiator with vertical or horizontal airflowdischargeEngine speed1200 rpmBrake mean effective pressure2193 kPa (318 psi)Compression ratio 15.0:1Piston speed6.3 m/s (1250 ft/min)Fuel systemInjection systemMaximum fuel inlet restrictionMaximum fuel flow to injection pumpMaximum return restrictionAirIntake combustion airflowMaximum air cleaner restrictionExhaustCummins MCRSClean filter - 5.0 in Hg (16.9 kPa)150 gal/hr (568 liter/hr)10 in Hg (33.8 kPa)88.5 m 3 /min (3125 scfm)15 in H 20 (3.7 kPa)Exhaust gas flow163 m 3 /min (5760 scfm)Exhaust gas temperature920 °F (495 °C)Max exhaust backpressure 6.7 kPa (27 in. H 2O)Radiated heat performanceRadiated heat to ambientExhaust heat rejectionAftercooler heat rejectionJacket water (JW) heat rejectionCoolingAmbient designFan loadCoolant capacity with radiatorCooling system air flowMaximum air flow static restrictionJacket water (JW) flow at max friction headMaximum friction head (JW)Aftercooler water flow at max friction headMaximum friction head (aftercooler)115 kWm (6340 BTU/min)905 kWm (51250 BTU/min)260 kWm (14710 BTU/min)425 kWm (24015 BTU/min)50 °C (122 °F)Vertical: 50 HP, horizontal: 49 HPVertical: 117 gallons, horizontal: 110 gallonsVertical: 47458 CFM, horizontal: 58367 CFMVertical: no additional external restriction allowed, horizontal: 0.75inches of Water300 gpm (18.9 liter/sec)10 psi (67 kPa)90 gpm (5.7 liter/sec)5 psi (34.4 kPa)©2008 Cummins Inc. All rights reserved. Cummins is a registered trademark of Cummins Inc. Specifications are subject to change without notice.S-1558a (11/08)