How is a fuel injector composed?
1 Answers
Fuel injectors are divided into five components: the electromagnet assembly, armature assembly, valve assembly, injector body, and nozzle coupling. Electromagnet assembly: Consists of a coil, iron core, cavity, electrical connector, and retaining cap. When energized, it generates electromagnetic force to attract the armature plate upward, controlling the nozzle needle valve. The fuel supply section comprises the fuel tank, fuel pump, fuel filter, pressure regulator, and fuel injector. The fuel pump draws gasoline from the tank, filters impurities through the fuel filter, pressurizes the gasoline via the pressure regulator to ensure its pressure exceeds the intake manifold's negative pressure, and then delivers the gasoline to each cylinder's fuel injector through the fuel delivery lines.