Doosan DP126LB User Manual

Page 1
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
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
Engine Model
DP126LB
Engine Type
4-Cycle, In-line, 6-Cylinder Diesel, water cooled, Turbo charged & intercooled
Bore x stroke
123 x 155 mm
Displacement
11.051 liters
Compression ratio 17.2 : 1
Rotation
Counter clockwise viewed from Flywheel
Firing order
1-5-3-6-2-4
Injection timing 17±1
Dry weight 1008 Kg
Dimension (LxWxH)
1,426 x 1,096 x 1,295 mm
Fly wheel housing
SAE NO.1M
Fly wheel
Clutch NO.14M
Number of teeth on flywheel
106
ENGINE MOUNTING
Maximum Bending Moment at Rear Face to Block
1325 NM
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
Max. 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
Page 2
COOLING SYSTEM
Water circulation by centrifugal pump on engine.
Cooling method
Fresh water forced circulation
Coolant capacity
Engine Only : Approx. 23 lit., With Radiator : Approx.51 lit.(standard)
Coolant flow
540 liters / min
Pressure Cap
90 kPa
Water Temperature
- Maximum for standby and Prime
110
- Before start of full load
40.0
Water pump
Centrifugal type driven by Pulley
Thermostat Type and Range
Wax – pellet type, Opening temp. 82°C , Full open temp. 95°C
Cooling fan
Blower type, Plastic , 810 mm diameter, 7 blade
Max. external coolant system restriction
Not Available
LUBRICATION SYSTEM
Force-feed lubrication by gear pump, lubricating oil cooling in cooling water circuit of engine.
Lub. Method
Fully forced pressure feed type
Oil pump
Gear type driven by crank-shaft gear
Oil filter
Full flow, cartridge type
Oil capacity
Max. 44 liters , Min. 20 liters
Lub oil pressure
Idle Speed : Min 100 kPa
Governed Speed : Min 300 kPa
Maximum oil temperature
120
Angularity limit
Front down 10 deg , Front up 10 deg , Side to side 22.5 deg
Lubrication oil
Refer to Operation Manual
FUEL SYSTEM
Bosch type in-line pump with integrated, electromagnetic actuator.
Injection pump
WEIFU In-line "P" type
Governor
Electric type ( all speed control )
Speed drop
G2 Class ( ISO 8528 )
Feed pump
Double action plunger type pump on injection pump
Injection nozzle
Multi hole type
Opening pressure
30 MPa
Fuel 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
Maximum fuel inlet restriction
10 kPa
Maximum fuel return restriction
60 kPa
Fuel feed pump Capacity
315 liters / hr
Used fuel
Diesel fuel oil
ELECTRICAL SYSTEM
Battery Charging Alternator
24V x 80A alternator
Voltage regulator
Built-in type IC regulator
Starting motor
24V x 6.0 kW
Battery Voltage
24V
Battery Capacity
200 Ah (recommended)
Starting aid (Option)
Block heater, Air heater
Printed in July 2017 Medium & Large Engine Design Team_DP126LB
Page 3
VALVE SYSTEM
Type
Overhead valve type
Number of valve
Intake 2, exhaust 2 per cylinder
Valve lashes at cold
Intake 0.4mm , Exhaust 0.5mm
Valve timing
Opening Close
-. Intake valve 24 deg. BTDC 38 deg. ABDC
-. Exhaust valve 62 deg. BBDC 25 deg. ATDC
PERFORMANCE DATA
Governed Engine speed
rpm
Engine Idle Speed
rpm
Over speed limit
rpm
Gross Engine Power Output
kW
ps
Break Mean effective pressure
Mpa
Mean Piston Speed
m/s
Friction Power
kW
ps
Specific fuel consumption
25% load liters/hr 50% load liters/hr 75% load liters/hr 100% load liters/hr
Fan Power
kW
(without Fan) dB(A)
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) air temperature, 100kPa(1000mbar) air pressure, 60% relative humidity, 110m(361ft) altitude.
Engine Data with Dry Type Exhaust Manifold
Intake Air Flow
m3/min
Exhaust gas temp. after turbo.
°C
Exhaust Gas Flow
m3/min
Heat Rejection to Exhaust
kW
Heat Rejection to Coolant
kW
Heat Rejetion to Intercooler
kW
Radiated Heat to Ambient
kW
Cooling water circulation
liters/min
Cooling fan air flow
m3/min
7.75
9.3
7.75
9.3
26.3
38.4
26.3
38.4
327
366
445
498
492
547
2.37
2.21
2.62
20.9
19.0
25.4
27.0
70.1
85.8
Sound Pressure at 1m from the each side of Cylinder Block
84.5
96.4
76.0
Prime Power
Standby Power
1500
1800
1500
1800
800
800
800
800
57.1
20.2
24.0
47.3
63.1
64.0
43.4
26.1
38.4
2.43
362
402
1650
1980
1650
1980
312
528
312
528
16
241624
46.7
57.6
73.4
87.1
43.0
43.0
32.0
33.0
22.1
42.5
35.7
52.2
35.7
52.2
435
525
525
435
99.5
100.4
99.5
100.5
67.6
535.0
58.3
505.0
62.1
52.9
575.0
590.0
92.4
102.7
114.0
125.4
253.3
290.8
279.3
324.6
Printed in July 2017 Medium & Large Engine Design Team_DP126LB
Page 4
ENGINE DIMENSION
CONVERSION TABLE
in. = mm x 0.0394 lb/ft = N.m x 0.737 PS = kW x 1.3596 U.S. gal = lit. x 0.264 psi = kg/cm2 x 14.2233 kW = 0.2388 kcal/s in3 = lit. x 61.02 lb/PS.h = g/kW.h x 0.00162 hp = PS x 0.98635
cfm = m3/min x 35.336
lb = kg x 2.20462 Mpa = Pa x 1000 = bar x 10 kW = Kcal/sec x 0.239
Speccifications are subject to change without prior notice
Doosan Infracore Co., Ltd.
21st Floor, Doosan Tower, 18-12, Euljiro 6-ga,
Jung-gu, Seoul, Korea.
TEL : +82-2-3398-8400 / FAX : +82-2-3398-8509 E-mail : enginesales@doosan.com Web site : www.doosaninfracore.com
Printed in July 2017 Medium & Large Engine Design Team_DP126LB
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