The classification of fuel injector (Dieselpartsworld) 2016-02-28    

The classification of fuel injector
O1, installation of S classification; (single point and multi point)
02, the nozzle number; (single nozzle type, nozzle type)
The resistance of O 3, the electromagnetic coil value classification; (low resistance, local resistance)
The structure classification of O 4, injector needle; (pintaux, Kong Shi)
Part 05, the classification of fuel into the upper and lower (
2) the working principle
A fuel injector fuel injection, the needle through the armature return spring pressed on the seat, to prevent the drop of oil. When the solenoid is energized, resulting in the electromagnetic force, the armature suck up and drive the needle away from the seat, and a spring is compressed, the fuel through the needle valve and the needle shaft and the nozzle ring gap or hole nozzle is ejected.
When the electromagnetic coil power, the electromagnetic force disappears. In spring quickly so that the valve is closed and the fuel injector fuel injection stop.
The injector drive mode can be divided into:
1) current drive
2) voltage driving mode