The Bosch diesel injector with part number 0445110944 is a common rail fuel injector used in various diesel engines. Here’s some key information about it:
Coding Required: Many modern diesel injectors need coding to the ECU using a diagnostic tool (e.g., VCDS, Bosch KTS, or dealer software).
Sealing Washers/O-rings: Must be replaced during installation to prevent leaks.
The Bosch diesel fuel injector (0445110944) is a high-precision component in common rail diesel systems. Below is a breakdown of its structure and key features:
1. Structure of the Bosch 0445110944 Injector
The injector consists of several critical components, each playing a role in fuel delivery:
A. Nozzle Assembly (Spray Tip)
Multi-hole nozzle (typically 5-8 holes) for precise fuel atomization.
Tight tolerances (µm-level precision) to ensure optimal spray pattern.
Sac volume design (mini-sac or VCO – Valve Covered Orifice) to reduce emissions.
B. Solenoid or Piezo Actuator (Depending on Model)
Solenoid-controlled injectors use an electromagnetic coil to open/close the needle.
Piezo injectors (faster response) use piezoelectric crystals for ultra-precise fuel metering (though 0445110944 is typically solenoid-driven).
C. Hydraulic Servo System
Control piston & pressure chamber for needle lift regulation.
High-pressure fuel inlet (connected to the common rail).
Leakage return line (returns excess fuel to the tank).
D. Electronic Control Components
Integrated ECU connector for receiving signals from the engine control unit.
Wiring harness with high-temperature-resistant insulation.
E. Mechanical Components
Spring-loaded needle valve for quick closure.
Pressure-balanced design to handle 1800+ bar rail pressures.
Precision shims for calibration adjustments.
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