DCEC QSB3.9-G2 G-Drive Engine
DCEC QSB3.9-G2 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-G2 generator drive engine is 63kW.
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.
Advantages of DCEC QSB3.9-G2 G-Drive Engine
Advanced design and high-quality manufacturing. Adapt to harsh working environment, high strength, reliable work under heavy load.
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.
Forged steel camshafts and crankshafts, high-strength cylinders, cast on multiple cylinders, high rigidity, high pressure resistance, good reliability, and long service life.
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.
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.
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
| Engine Model: | QSB3.9-G2 |
| Engine Type: | 4 Cylinders |
| Displacement: | 3.9 L |
| Rated Speed: | 1500 RPM |
| Rated Power: | 63 kW @ 1500 RPM |
| Fuel System: | Common Rail |
| Cooling System: | 29 kW |
| Aspiration Method: | Turbocharged & Air-Air Intercooler |
| Emission Standard: | N/A |
| Bore*Storke: | 102 mm * 120 mm |
| Packing Size(L*W*H): | N/A |
| Wet Weight: | 281 kg |
| Lead Time: | 15-30 Working Days |
| Payment Terms: | T/T ,L/C |
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 |
| QSB3.9-G31 | 27 kW @ 1500 RPM | 33 kW @ 1500 RPM | High Pressure Common Rail System | Turbocharged & Air-Air Intercooler |
| QSB3.9-G33 | 40 kW @ 1500 RPM | 36 kW @ 1500 RPM | High Pressure Common Rail System | Turbocharged & Air-Air Intercooler |
| QSB3.9-G35 | 64 kW @ 1500 RPM | 58 kW @ 1500 RPM | High Pressure Common Rail System | Turbocharged & Air-Air Intercooler |
| QSB3.9-G37 | 92 kW @ 1500 RPM | 84 kW @ 1500 RPM | High Pressure Common Rail System | Turbocharged & Air-Air Intercooler |
| QSB3.9-G39 | 110 kW @ 1500 RPM | 100 kW @ 1500 RPM | High Pressure Common Rail System | Turbocharged & Air-Air Intercooler |
| ——END—— | ||||
General Infomation of DCEC QSB3.9-G2 Generator Engine | |||
| Engine Model | QSB3.9-G2 | Engine Configuration Number | D383099GX03 |
| Performance Curve | FR95833 | Performance Control Part | 4854 |
| Fuel System | Common Rail | Aspiration | Turbocharged & Air-Air Intercooler |
| Cylinder Diameter/Stroke | 102/120 | No. of Cylinders | 4 |
| Compression Ratio | 17.3:1 | Emissions | 3.9 L |
| Standby Power & Engine Speed | 94Hp (70 kW) at 1500 RPM | Continuous Power & Engine Speed | 67 HP (50 kW) at 1500 RPM |
| Normal Power & Engine Speed | 84 HP (63 kW) at 1500 RPM | Dry Weight | N/A |
| Wet Weight | 281 kg | Maximum Used Altitude | 4500 m |
| Engine Type | 4 Cylinder,4 Stroke | Governor Regulation | ≤3% |
| ——END—— | |||
Performance Data of DCEC QSB3.9-G2 Generator Engine | |||||
| Prime Power | Standby | Prime Power | Standby | ||
| Governed Engine Speed | 1500 RPM | 1500 RPM | Gross Engine Power Output | 63 kWm | 70 kWm |
| Low Idle Speed | 900-1000 RPM | 900-1000 RPM | Piston Speed | 6 m/s | 6 m/s |
| Friction Loss Power | 8.46 kW | 8.46 kW | Engine Coolant Flow Rate | 2.5 litre/sec | 2.5 litre/sec |
| lnlet Flow | 86 litre/sec | 89 litre/sec | Extraction Flow | 180 litre/sec | 188 litre/sec |
| Exhaust Gas Temperature | 460℃ | 465℃ | Ambient Heat Loss Work | N/A | N/A |
| Heat Loss Work of Coolant | 29 kW | 32 kW | Heat Loss Work of Intercooler | 11 kW | 13 kW |
| Exhaust Heat Loss work | N/A | N/A | |||
System Technical Data of DCEC QSB3.9-G2 Generator Engine | |||
| Exhaust System | Maximum Exhaust Resistance Allowed By the System | 10 kPa | |
| the Maximum Static Bending Moment That the Exhaust Flange Can Bear | 4.5 N.m | ||
| Recommended Minimum Inner Diameter of Exhaust Pipe | 80 mm | ||
| Induction System | Exhaust Heat Loss Work Maximum Allowable Intake Resistance – Clean Filter Element | 3.7 kPa | |
| Exhaust Heat Loss Work Maximum Allowable Intake Resistance – Dirty Filter Element | 6.2 kPa | ||
| the Maximum Temperature Rise of External Air to the Inlet of the Supercharger | 15 ℃ | ||
| Recommended Minimum Inner Diameter of Intake Pipe | 76 mm | ||
| Lubrication System | Normal Operating Oil Pressure Range – Low Idle Minimum Oil Pressure | 69 kPa | |
| Normal Operating Oil Pressure Range – Minimum Oil Pressure At Rated Point | 241 kPa | ||
| Maximum Pan Oil Temperature | 124 ℃ | ||
| Oil Pan (Op 9352 And Op 9855) Timing Oil Capacity: Maximum – Minimum | 9.46-7.57 litre | ||
| Volume of the Entire Lubrication System | 10.9 litre | ||
| Front Op 9352/ Rear Op 9855 Low Oil Slope – Front Up | 45/44° | ||
| Front Op 9352/ Rear Op 9855 Low Oil Slope – Rear Up | 45/44° | ||
| Front Op 9352/ Rear Op 9855 Low Oil Surface Inclination Angle – Edge to Edge | 45/44° | ||
| Cooling System | Minimum Engine Operating Coolant Temperature | 70 ℃ | |
| Engine torque Limit Maximum Coolant Temperature | 104 ℃ | ||
| Engine Coolant Volume | 7 litre | ||
| Standard Regulating Temperature of thermostat (Range) | 82-95 ℃ | ||
| Recommended Refill Rate | 11-19 L/min | ||
| Minimum Coolant Expansion Volume (As A Percentage of total Cooling System Volume) | 6% | ||
| Minimum Lower Tank Volume Without Expansion Tank (As A Percentage of total Cooling System Volume) | 11% | ||
| Maximum Degassing Time | 25 min | ||
| Minimum Allowable Cap Pressure (Sea Level) | 70 kPa | ||
| Fuel System | Type of Fuel Pump System | EC high pressure common rail | |
| Maximum Engine Fuel Inlet Resistance When Using Clean Filter (Relative Value) | -16 kPa | ||
| Maximum Engine Fuel Inlet Resistance When Using Dirty Filter (Relative Value) | -30 kPa | ||
| Maximum Fuel Return Resistance (Relative Value) | 20 kPa | ||
| Maximum Fuel Temperature (At Engine Fuel Inlet) | 80 ℃ | ||
| Minimum Fuel Design Flow Rate | 5 L/min | ||
| Electric System | System Voltage | 24 V | |
| the Minimum Cold Start Current Is Recommended When the Temperature Is -18℃ Or Above | 600 CCA | ||
| Maximum Resistance of Starting Circuit | 2 mΩ | ||
| Minimum Ignition Speed | 150 RPM | ||
| Supercharged Intercooling System | Maximum Allowable Intake Manifold Temperature And Intake Temperature Difference | 25 ℃ | |
| Maximum Allowable Pressure Difference Before And After Intercooling | 13 kPa | ||
| Maximum Allowable Intake Manifold Temperature (Ambient Temperature 25℃) | 50 ℃ | ||
| ——END—— | |||
Scopes of Supply of DCEC QSB3.9-G2 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 | |||
| ——END—— | |||
Optional Accessories of DCEC QSB3.9-G2 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 |
| 2. Fuel Pre-Heater | 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 | ||
| ——END—— | |||
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-G2 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) | ||
| ——END—— | |||
Note: All Above Data are Just for Reference, All Data Might Change Without Notices or Updates, Please Contact Our Sales Team to Confirm All Details Via WhatsApp or Email.
Engine Sale Manual
Installation Drawing
Installation Manual
Operation Manual
Parts Catalogue
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