Description

The Bosch fuel injector (0445110726) used in the Hyundai/Kia D4EB (2.0L CRDi) engine is a piezoelectric common rail diesel injector, featuring advanced design and precision engineering for optimal performance.

Structural Characteristics:

• Uses a piezoelectric crystal stack instead of a traditional solenoid, enabling faster response times (up to 5x quicker than solenoid injectors).

• Allows for multiple injection events per cycle (pilot, main, and post injections) for smoother combustion.

• Micro-machined spray holes (typically 6-8 holes) ensure fine atomization of diesel fuel for better combustion efficiency.

• Tapered seat design reduces leakage and improves sealing.

• Directly regulates fuel flow with minimal hydraulic losses.

• Reduces internal pressure fluctuations for more stable injection.

• Made from high-strength materials to withstand high-pressure (up to 2,000 bar) common rail systems.

• Resistant to thermal and mechanical stress.

Technical Advantages:

✔ Ultra-Fast Response- Piezo technology allows for precise, near-instantaneous fuel delivery, improving emissions and performance.
✔ Multiple Injection Events- Supports pilot, main, and post injections for quieter operation and reduced NOx/soot emissions.
✔ Higher Pressure Tolerance- Works efficiently in modern high-pressure common rail (HPCR) systems.
✔ Improved Fuel Economy- Optimized spray pattern ensures complete combustion, reducing fuel consumption.
✔ Lower Emissions- Helps meet Euro 5/6 standards by enabling cleaner combustion.