The Bosch diesel injector with part number 0445110367 is a common fuel injection component used in various diesel engines:

Key Details:

• 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

• Receives signals from the ECU to control injection timing and duration.

• Contains terminals for solenoid activation.

• Solenoid Valve (Actuator)

• An electromagnetic coil that opens/closes the injector needle when energized.

• Controls fuel flow into the nozzle.

• Valve Spring & Armature

• Helps return the valve to the closed position when de-energized.

• B. Middle Section (Hydraulic Control & Pressure Regulation)

• High-Pressure Fuel Inlet

• Connects to the common rail (up to 2,000+ bar pressure).

• 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

• Regulates fuel flow into the control chamber.

• Critical for precise injection timing.

• C. Lower Section (Nozzle & Injection)

• Injector Needle (Nozzle Needle)

• Precision-machined needle that opens/closes the injector tip.

• Controlled by hydraulic pressure and solenoid action.

• 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

• Ensures a leak-proof connection to the cylinder head.

• 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.