Part Number: 0445110367 (Bosch)
Type: Diesel fuel injector (solenoid or piezoelectric, depending on application)
Compatible Vehicles: Used in several European diesel engines, including some models from Volkswagen (VW), Audi, Skoda, and Seat with 1.6 TDI, 2.0 TDI, or similar engines.
Injection System: Common Rail Direct Injection (CRDI)
The Bosch diesel fuel injector (0445110367) is a Common Rail solenoid-type injector, designed for high-pressure direct fuel injection in modern diesel engines. Below is a detailed breakdown of its structure and key components:
1. Main Structural Components of Bosch 0445110367 Injector
A. Upper Section (Electrical & Control)
Electrical Connector
Solenoid Valve (Actuator)
Valve Spring & Armature
B. Middle Section (Hydraulic Control & Pressure Regulation)
High-Pressure Fuel Inlet
Control Chamber (Pilot Valve Section)
A small chamber where fuel pressure acts on the needle control piston.
When the solenoid opens, pressure drops, allowing the needle to lift.
Ball Valve & Orifice Plate
C. Lower Section (Nozzle & Injection)
Injector Needle (Nozzle Needle)
Nozzle Tip (Orifice Disc)
Contains microscopic holes (e.g., 6–8 holes) for atomized fuel spray.
Made of hardened steel to withstand high pressure and heat.
Tightening Clamp & Sealing Washer
2. How It Works (Brief Operation Principle)
ECU Sends Signal → Solenoid energizes, lifting the armature.
Pilot Valve Opens → Pressure drops in the control chamber.
Needle Lifts → High-pressure fuel sprays through the nozzle.
ECU Cuts Signal → Solenoid de-energizes, closing the injector.
3. Key Features of This Injector Design
✔ Solenoid-Driven (not piezoelectric, unlike some newer Bosch injectors).
✔ Multi-Hole Nozzle for better fuel atomization.
✔ Precision-Matched Components for consistent spray pattern.
✔ Integrated Filter (some models) to prevent clogging.
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