DCEC Cummins QSB4.5-C121 Industrial Application Engine
| Engine Model | QSB4.5-C121 |
| Rated Power / Speed: | 121 HP @ 2500 RPM |
| Peak Torque: | 470 N.m @1500 RPM |
| Type | 4 Cylinders |
| Fuel System | Bosch Electronic |
| Aspiration | Turbocharged & Air-Air Intercooler |
| Displacement | 4.5 L |
| Bore * Stroke | 107 mm * 124 mm |
| Packing Size (L * W * H) | 800mm*644mm*950mm |
| Lead Time: | 5-15 Working Days |
General Infomation of DCEC QSB4.5-C121 Industrial Engine
| General Infomation of DCEC QSB4.5-C121 Industrial Engine | |||
| Engine Model | QSB4.5-C121 | Bore * Stke | 107 mm * 124 mm |
| Curve&Datasheet | FR91666 | Displacement | 4.5 L |
| Emission Standard | Euro Stage III | Rated Power | 121 HP @ 2500 RPM |
| No. Of Cylinders | 4 Cylinders | Peak Torque | 470 N.m @1500 RPM |
| Fuel System | Bosch Electronic | Configuration | D323001CX03 |
| Aspiration | Turbocharged & Air-Air Intercooler | Compression Ratio: | 17.2 : 1 |
Performance Data of DCEC QSB4.5-C121 Industrial Engine
| Engine Performance Data Rated Power of DCEC QSB4.5-C121 Industrial Engine | |||||
| Rated Power | Torque Peak | Rated Power | Torque Peak | ||
| Engine Speed | 2200 RPM | 1500 RPM | Turbo Comp. Outlet Pressure | 147 kPa | 123 kPa |
| Gross Power Output | 90 kW | 74 kW | Turbo Comp. Outlet Temp. | 161 °C | 146 °C |
| Torque | 392 N.m | 470 N.m | Maximum Fuel Flow to Pump | 132 kg | 95 kg |
| Friction Horsepower | 18 kW | 9 kW | Heat Rejection to Coolant | 45 kW | 38 kW |
| Exhaust Gas Flow | 341 L/s | 266 L/s | Heat Rejection to Fuel | 2 kW | 1 kW |
| Exhaust Gas Temp. | 428 °C | 521°C | Heat Rejection to Ambient | 17 kW | 13 kW |
| Inlet Air Flow | 156 L/s | 102 L/s | Heat Rejection to Exhaust | 80 kW | 66 kW |
| Charge Air Flow | 11 kg | 7 kg | Steady State Smoke | 0.9 Bosch | 0.8 Bosch |
Advantages of DCEC QSB4.5-C121 Industrial Engine
1. High-Pressure Common Rail (HPCR) Fuel System
- Ultra-High Injection Pressure: Delivers fuel at up to 1,600 bar for precise combustion control.
- Responsive Performance: Enables rapid throttle response across varying speeds.
- Efficiency & Economy: Enhances power output while improving fuel efficiency and reducing operational noise.
2. Intelligent Electronic Control Technology
- Adaptive Performance: Advanced electronics optimize engine performance dynamically.
- Customizable Configurations: Engine specifications can be tailored to meet specific application requirements.
- Diagnostic Capabilities: Robust self-diagnostic and self-protection systems enhance reliability and uptime.
3. Fuel-Adaptive Filtration System
- Broad Compatibility: Redesigned filters accommodate diverse fuel qualities, ensuring adaptability across global markets and challenging environments.
4. Environmental Resilience
- Cold Start Efficiency: Engineered for reliable ignition in low-temperature conditions.
- Durability: Built to perform consistently in extreme climates and harsh operating environments.
5. Modular Design Philosophy
- Simplified Architecture: Fewer components reduce failure rates and streamline maintenance.
- Compact & Service-Friendly: Space-efficient design paired with accessible components for easier repairs and lower lifecycle costs.
By harmonizing these systems, Cummins delivers engines that balance power, efficiency, and durability, meeting the demands of industrial, automotive, and off-grid applications worldwide.port.
