Fuel Injector Operation Diagram - How Diesel/Gasoline Injectors Work #1404280 (License: Personal Use)

This technical illustration depicts a solenoid-operated fuel injector, highlighting the needle valve, coil, return spring, and sealing seat. When energized, the solenoid lifts the needle, allowing pressurized fuel to atomize through the nozzle into the combustion chamber. The design ensures precise fuel delivery timing and quantity for optimal engine efficiency.

Used in automotive repair guides, engineering education, OEM service manuals, and diagnostic training to explain injector function, failure modes, or tuning principles; targets mechanics, students, and DIY enthusiasts seeking technical clarity.