Dongfeng Renault engine parts No oil pump injector assembly 1112010-E9300

The assembly features an innovative oil-pump-free structure that eliminates the need for a dedicated injector lubrication pump—relying instead on the engine’s common rail fuel pressure (up to 2,000 bar) for operation. This design simplifies the fuel system by removing 3–4 components (pump, hoses, filters), reducing weight by 15% and lowering the risk of pump-related failures (e.g., oil leaks, mechanical wear). Unlike traditional injectors with built-in oil pumps that require regular lubricant changes, this oil-pump-free model reduces maintenance frequency by 40%, cutting downtime for fleet operators. It also minimizes fuel system complexity, making troubleshooting faster and more cost-effective—critical for commercial vehicle applications

Engineered to deliver ultra-fine fuel atomization, the injector features a 6-hole tip with precision-drilled orifices (0.12mm diameter each) and a piezoelectric actuator. The actuator responds to ECU signals in 0.1 milliseconds, controlling injection timing and fuel quantity with ±1% accuracy—ensuring fuel is atomized into 5–10μm droplets (ideal for complete combustion). This precise atomization reduces fuel consumption by 3–5% compared to standard injectors and lowers NOₓ emissions by 15%, meeting Dongfeng Renault’s emission standards (National V/VI). Unlike injectors with worn or misaligned orifices that cause uneven combustion, this design maintains consistent spray patterns through 100,000+ km of operation, preserving engine power and reducing carbon deposits on pistons and valves

Built to withstand the harsh conditions of Dongfeng Renault’s engine (high pressure, temperature, and vibration), the injector assembly uses rugged materials. The injector body is made of heat-treated stainless steel (316L grade) that resists corrosion from diesel fuel additives and endures temperatures up to 300°C (near combustion chambers). The tip is coated with a wear-resistant ceramic layer (Al₂O₃) that prevents erosion from high-velocity fuel flow, extending tip life by 50%. The piezoelectric actuator is encapsulated in a hermetic seal (IP67 rating) that blocks moisture and fuel intrusion, ensuring reliable performance in wet or dusty environments. Unlike plastic or low-grade metal injectors that degrade quickly, this material combination ensures the assembly operates reliably for 150,000+ km

The injector assembly is fully compatible with Dongfeng Renault’s ECU, featuring a dedicated electrical interface that supports real-time communication for adaptive injection control. The ECU monitors engine load, speed, and temperature, adjusting the injector’s injection duration (0.2–2.0 milliseconds) and pressure to optimize performance under all conditions (e.g., idle, full load, cold start). The assembly includes a built-in pressure sensor that feeds data back to the ECU, enabling closed-loop control to maintain consistent fuel delivery—even as fuel pressure fluctuates. Unlike aftermarket injectors that require ECU reprogramming, this OEM-compatible model works seamlessly with the factory ECU, eliminating calibration issues that cause rough idling or power loss. Backed by a 24-month warranty against manufacturing defects (e.g., actuator failure, tip erosion, or electrical malfunction), it provides Dongfeng Renault engine owners with reliable fuel injection and long-term engine efficiency