DCEC QSB3.9-G3 G-Drive Engine

DCEC QSB3.9-G3 generator drive engine is a 4-cylinders in line,3.9 liter four-strokes engine with 102mm bore and 120mm stroke. Equipped with Electrically Control High-pressure Common Rail, comes with turbocharger and Air-Air intercooler.
The prime power for 50HZ generator set (1500RPM) of DCEC QSB3.9-G3 generator drive engine is 79 kW.
As part of EMAC, SinoGen also provide complete power supply solutions that powered by DCEC, our ranges of products including open type generator set, silence type generator set, super silence type generator set, mobile trailer, complete power truck and complete power car for railways applications. We provide full life cycle services for all customers, from design to power system supply, from installation to commissioning, from after-sales service training to spare parts supply, from trouble shooting to overhaul technical support.

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1. Advanced design and high-quality manufacturing. Adapt to harsh working environment, high strength, reliable work under heavy load.
2. The integrated design of cylinder block and cylinder head prevents water and oil leakage from the engine. About 40% less than the same type of engine, the failure rate is greatly reduced.
3.Forged steel camshafts and crankshafts, high-strength cylinders, cast on multiple cylinders, high rigidity, high pressure resistance, good reliability, and long service life.
4. The platform hones the cross hatch cylinder hole, and the perfect geometric structure can effectively prevent oil leakage. Advanced technology such as new piston ring assembly and gasket crimp shield to reduce oil loss.
5. Cylinder block and cylinder head adopt integrated design, which eliminates the occurrence of engine water and oil leakage. The parts are about 40% less than other similar engines, and the failure rate is greatly reduced.
6. The three-stage fuel filter ensures a balanced level of particle dispersion, protects the main components of the fuel system, and maximizes the life of the engine.

Technical Specifications

Basic Introduction of DCEC QSB3.9-G3 G-Drive Engine

Engine Model:	QSB3.9-G3
Engine Type:	6 Cylinders
Displacement:	5.9 L
Rated Speed:	1500 RPM
Aspiration Method:	Turbocharged & Air-Air Intercooler
Emission Standard:	N/A
*BoreStorke:**	102 mm * 120 mm
*Packing Size(LWH):*	N/A
Wet Weight:	281 kg
Lead Time:	15-30 Working Days
Payment Terms:	T/T ,L/C

DCEC QSB3.9-G3 Generator Drive Engine Introduction 620×350

Engine Model	Standby Power	Prime Power	Fuel System	Aspiration
QSB3.9-G2	70 kW @ 1500 RPM	63 kW @ 1500 RPM	High Pressure Common Rail System	Turbocharged & Air-Air Intercooler
QSB3.9-G3	88 kW @ 1500 RPM	79 kW @ 1500 RPM	High Pressure Common Rail System	Turbocharged & Air-Air Intercooler
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General Infomation of DCEC QSB3.9-G3 Generator Drive Engine
Engine Model	QSB3.9-G3	Displacement	5.9 L
Compression Ratio	17.3:1	Bore * Storke	102 mm * 120 mm
No. of Cylinders	6	Governor Regulation	≤3%
Aspiration	Turbocharged & Air-Air Intercooler	CPL Code Revision	4813

Installation Data of DCEC QSB3.9-G3 Generator Drive Engine
Net weight		N/A
Net quality		281 kg
Center of Gravity from front face of block		304 mm
Center of Gravity above Crankshaft Centerline		147 mm
Engine Idle Speed		1000 ± 100 RPM
Fire Order		1-4-2-3
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Engine Performance Data 1500 RPM/50HZ of DCEC QSB3.9-G3 Generator Drive Engine
Standby Power	88 kW /118 HP	Friction Horsepower	8.46 kW
Prime Power	79 kW / 106 HP	Piston Speed	6.0 m/s
Continuous Power	64 kW / 86 HP	Engine Water Flow to Engine	2.5 l/s
Fuel Consumption	214 g/kW.h	Intake Air Flow	83 l/s
Cons 100%	20.2 L/h	Exhaust Gas Flow	168 l/s
Governed Engine Speed	1500 RPM	Exhaust Gas Temperature	415 ℃
Engine Idle Speed	79 kW	Radiated Heat to Ambient	N/A
Heat Rejection to Coolant	30 kW
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System Technical Data of DCEC QSB5.9-G3 Generator Drive Engine

Exhaust System	Maximum Back Pressure	10 mmHg
	Maximum allowable static bending moment at exhaust outlet flange	12 N.m
	Exhaust pipe size (recommendatory)	76 mm

Air Intake System	Maximum Intake Air Restriction with Heavy Duty Air Cleaner— Clean Element	3.7 kPa
	Maximum Intake Air Restriction with Heavy Duty Air Cleaner— Dirty Element	6.2 kPa
	Maximum Temp. Rise Between Engine Air Intake and Intake Manifold	17 ℃
	Minimum inlet pipe diameter is recommended	101.6 mm

LubricationSystem	Idle Speed	69 kPa
	Maximum Oil Temperature	124 ℃
	Capacity with Oil Pan : High – Low	14.2 L-12.3 L
	Minimum Required Lube System Capacity – Sump plus Filters	16.4 L

Cooling System	Coolant Capacity – Engine Only	9 L
	Minimum Recommended Coolant Temperature	70 ℃
	The Limit Environmental Temperature At Peak Torque	104 ℃
	Minimum Fill Rate ( Without Low Level Alarm)	19 l/m
	Water Tank Capacity Without Water Expansion	11%
	Maximum Degassing Time	25 min
	Standard Thermostat (Modulating) Range	82 ℃-95 ℃
	Minimum Pressure Cap	90 kPa
	Minimum fill rate	6%

Electrical System	System voltage	24 V
	Minimum battery capacity-cold soak at -18 C (0 F) or above
	Engine only reserve capacity:	N/A
	Engine only cold cranking amperes:	600 CCA

Cool Start System	Minimum ambient temperature for unaided cold start	﹣12 ℃
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Scopes of Supply of DCEC QSB3.9-G3 Generator Drive Engine
Air Intake System	1. Air Intake Manifold	Exhuast System	1. Exhuast Manifold
	2. Standard Air Filter		2. Turbocharger
	3. Water-Air Intercooler		3. Exhuast Elbow
Starting System	1. Starter Motor	Charging System	1. Charging Alternator
	2. Starter Rely		2. N/A
Lubricating System	1. Oil Pump	Cooling System	1. Water Pump
	2. Oil Filter		2. Engine Fan
	3. N/A		3. Standard Radiator
Engine Shut-Down System	1. Engine Fuel Shut-Off Solenoid	Power Output System	1. Flywheel
	2. N/A		2. Standard Flywheel Housing
Fuel System	1. Fuel Transfer Pump
	2. High-Pressure Fuel Pump
	3. Fuel Filter
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Optional Accessories of DCEC QSB3.9-G3 Generator Drive Engine
Air Intake System	1. Air Intake Pre-Heater	Exhuast System	1. Muffler & Bellows
	2. Air Intake Shut-Off Valve		2. Spark Arrestor Type Muffler & Bellows
	3. Heavy-Duty Air Filter		3. DPF System
	4. Plateau Type Air Filter		4. N/A
Fuel System	1. Coarse Filter	Lubricating System	1. Oil Pre-Heater
Fuel System	2. Fuel Pre-Heater	Lubricating System	2. N/A
Starting System	1. Manual Magnetic DC Contactor	Cooling System	1. Silent Type Radiator
	2. Dual Ears Flywheel Housing		2. Plateau Radiator
	3. Spring Starter Motor		3. Salt-Spray Resistant Radiator
	4. Air Starter Motor		4. Coolant Pre-Heater
	5. Hydraulic Starter Motor		5. Jacket Water Heater
	6. Manual Magnetic DC Contactor		6. N/A
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As part of EMAC, SinoGen focusing on generator set related business, from Generator drive engine power pack to complete generator set, from generator control panel to synchronizing cabinet, from super silent type generator set to mobile power trailer, SinoGen provides professional one-stop solution for everything customer needed for generator set. For more information of our complete generator set products, you are welcome to visit SinoGen homepage: www.sino-gen.com

Modifiable components of DCEC QSB3.9-G3 Generator Drive Engine
Air Intake System	1. Installation Position of Air Filter	Charging System	1. 12V Charging Alternator for 12V Electric System
	2. Upgrade to Heavy-Duty Type Air Fitler		2. Explosion-Proof Charging Alternator
Exhuast System	1. Position of Turbocharger	Lubricating System	1. Oil Pan Position
	2. Water-Cooled Exhuast Manifold		2. Number of Dipstick
	3. Water-Cooled Turbocharger		3. Position of Dipstick
Fuel System	1. Upgrade to Fuel Fitler that Integrated with Fuel Transfer Pump	Starting System	1. 12V Starter Motor for 12V Electric System
Engine Shut-Down System	1. 12V Solenoid for 12V Electric System	Power Output System	1. Size of Flywheel Housing and Flywheel.
	2. Explosion-Proof Solenoid		2. Dual-Ear Flywheel Housing (For Twin-Starter System)
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