DOOSAN INFRACORE GENERATOR ENGINE Gross Engine Output Ratings Definitions The power ratings of Emergency Standby and Prime are in accordance with ISO 8528. Fuel Stop power in accordance with ISO 3046. Electric power (kWe) must be considered cooling fan loss, alternator efficiency, altitude derating and ambient temperature. STANDBY POWER RATING is applicable for supplying emergency power for the duration of the utility power outage. No overload capability is available for this rating. A standby rated engine should be sized for a maximum of an 80% average load factor and 200 hours of operation per year. This includes less than 25 hours per year at the Standby Power rating. PRIME POWER RATING is available for an unlimited number of hours per year in variable load application. Variable load should not exceed a 70% average of the Prime Power rating during any operating period of 24 hours. The Total operating time at 100% Prime Power shall not exceed 500 hours per year. A 10% overload capability is available for a period of 1 hour withing a 12 hour period of operation. Total operating time at the 10% overload power shall not exceed 25 hours per year. ◎ GENERAL ENGINE DATA ㅇEngine Model ㅇEngine Type 4-Cycle, In-line, 6-Cylinder Diesel, Turbo charged ㅇCompression ratio Counter clockwise viewed from Flywheel ㅇFiring order ㅇInjection timing ㅇDry weight ㅇDimension (LxWxH) ㅇFly wheel housing ㅇFly wheel ㅇNumber of teeth on flywheel ◎ ENGINE MOUNTING Maximum Bending Moment at Rear Face to Block ◎ EXHAUST SYSTEM Maximum Back Pressure ◎ AIR INDUCTION SYSTEM Maximum Intake Air Restriction . With Clean Filter Element . With Dirty Filter Element ㅇMax. static pressure after Radiator Printed in September 2015 Medium Engine

◎ COOLING SYSTEM Water circulation by centrifugal pump on engine. ㅇCooling method Fresh water forced circulation ㅇCoolant capacity Engine Only : Approx. 14 lit., With Radiator : Approx 34 lit.(standard) ㅇCoolant flow rate ㅇWater Temperature - Maximum for standby and Prime - Before start of full load ㅇWater pump Centrifugal type driven by belt ㅇThermostat Type and Range Wax – pellet type, Opening temp. 71°C , Full open temp. 85°C Blower type, Steel , 590 mm diameter, 6 blade ㅇMax. external coolant system restriction ◎ LUBRICATION SYSTEM Force-feed lubrication by gear pump, lubricating oil cooling...

◎ VALVE SYSTEM ㅇ Type Overhead valve type Intake 1, exhaust 1 per cylinder ㅇ Valve lashes at cold ㅇ Valve timing Opening -. Intake valve -. Exhaust valve Prime Power Standby Power ㅇGoverned Engine speed ㅇEngine Idle Speed ㅇOver speed limit ㅇGross Engine Power Output ㅇBreak Mean effective pressure Mpa ㅇMean Piston Speed ㅇFriction Power ㅇ Specific fuel consumption 25% load ㅇFan Power ㅇSound Pressure at 1m from the each side of Cylinder Block (without Fan) The all data and the specific fuel consumption are based on ISO 3046/1, Standard reference conditions are in accordance with 298 K(25˚ Celsius)...

◆ CONVERSION TABLE in. = mm x 0.0394 PS = kW x 1.3596 psi = kg/cm2 x 14.2233 in3 = lit. x 61.02 hp = PS x 0.98635 lb = kg x 2.20462 kW = Kcal/sec x 0.239 lb/ft = N.m x 0.737 U.S. gal = lit. x 0.264 kW = 0.2388 kcal/s lb/PS.h = g/kW.h x 0.00162 cfm = m3/min x 35.336 Mpa = Pa x 1000 = bar x 10 ※ Speccifications are subject to change without prior notice Printed in September 2015 Medium Engine Main Feature Development Team_D1146