DP126LB
DOOSAN INFRACORE GENERATOR ENGINE
Standby Prime Standby Prime
1500rpm(50Hz) 362/492 327/445 346/470 311/423
1800rpm(60Hz) 402/547 366/498 378/514 342/465
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
DP126LB
ㅇEngine Type
4-Cycle, In-line, 6-Cylinder Diesel, water cooled, Turbo charged & intercooled
ㅇBore x stroke
123 x 155 mm
ㅇDisplacement
11.051 liters
ㅇCompression ratio 17.2 : 1
ㅇRotation
Counter clockwise viewed from Flywheel
ㅇFiring order
1-5-3-6-2-4
ㅇInjection timing 17±1
ㅇDry weight 1008 Kg
ㅇDimension (LxWxH)
1,426 x 1,096 x 1,295 mm
ㅇFly wheel housing
SAE NO.1M
ㅇFly wheel
Clutch NO.14M
ㅇNumber of teeth on flywheel
106
◎ ENGINE MOUNTING
Maximum Bending Moment at Rear Face to Block
1325 NㆍM
◎ EXHAUST SYSTEM
Maximum Back Pressure 5.9 kPa
◎ AIR INDUCTION SYSTEM
Maximum Intake Air Restriction
. With Clean Filter Element
2.16 kPa
. With Dirty Filter Element
6.23 kPa
ㅇMax. static pressure after Radiator
0.125 kPa
Ratings
( kWm/PS)
Gross Engine Output
Net Engine Output
DP126LB
Printed in July 2017 Medium & Large Engine Design Team_DP126LB
◎ COOLING SYSTEM
Water circulation by centrifugal pump on engine.
ㅇCooling method
Fresh water forced circulation
ㅇCoolant capacity
Engine Only : Approx. 23 lit., With Radiator : Approx.51 lit.(standard)
ㅇCoolant flow
540 liters / min
ㅇPressure Cap
90 kPa
ㅇWater Temperature
- Maximum for standby and Prime
110℃
- Before start of full load
40.0℃
ㅇWater pump
Centrifugal type driven by Pulley
ㅇThermostat Type and Range
Wax – pellet type, Opening temp. 82°C , Full open temp. 95°C
ㅇCooling fan
Blower type, Plastic , 810 mm diameter, 7 blade
ㅇMax. external coolant system restriction
Not Available
◎ LUBRICATION SYSTEM
Force-feed lubrication by gear pump, lubricating oil cooling in cooling water circuit of engine.
ㅇLub. Method
Fully forced pressure feed type
ㅇOil pump
Gear type driven by crank-shaft gear
ㅇOil filter
Full flow, cartridge type
ㅇOil capacity
Max. 44 liters , Min. 20 liters
ㅇLub oil pressure
Idle Speed : Min 100 kPa
Governed Speed : Min 300 kPa
ㅇMaximum oil temperature
120℃
ㅇAngularity limit
Front down 10 deg , Front up 10 deg , Side to side 22.5 deg
ㅇLubrication oil
Refer to Operation Manual
◎ FUEL SYSTEM
Bosch type in-line pump with integrated, electromagnetic actuator.
ㅇInjection pump
WEIFU In-line "P" type
ㅇGovernor
Electric type ( all speed control )
ㅇSpeed drop
G2 Class ( ISO 8528 )
ㅇFeed pump
Double action plunger type pump on injection pump
ㅇInjection nozzle
Multi hole type
ㅇOpening pressure
30 MPa
ㅇFuel filter
Main(On Engine) : Full flow, High efficiency dust in fuel filter, cartrudge type
Pre(Loosed Part) : Full flow, cartridge type with water drain valve
ㅇMaximum fuel inlet restriction
10 kPa
ㅇMaximum fuel return restriction
60 kPa
ㅇFuel feed pump Capacity
315 liters / hr
ㅇUsed fuel
Diesel fuel oil
◎ ELECTRICAL SYSTEM
ㅇBattery Charging Alternator
24V x 80A alternator
ㅇVoltage regulator
Built-in type IC regulator
ㅇStarting motor
24V x 6.0 kW
ㅇBattery Voltage
24V
ㅇBattery Capacity
200 Ah (recommended)
ㅇStarting aid (Option)
Block heater, Air heater
Printed in July 2017 Medium & Large Engine Design Team_DP126LB
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