What force is used to hold the nozzle valve seated and closed on a typical CR-EHI when the engine is running?
A) Combined spring and hydraulic force
B) Combined spring and electrical force
C) Spring force only
D) Electrical force only

Question

Quizplus · Accepted Answer

The nozzle valve in a typical Common Rail Electronic Hydraulic Injector (CR-EHI) is held seated and closed by a combination of spring and hydraulic force when the engine is running. This ensures precise control over fuel injection.

What Force Is Used to Hold the Nozzle Valve Seated