What is the function of the admission valve used in some diesel CR fuel systems?
A) prevents fuel siphon from the rail on shutdown
B) holds rail pressure fuel away from nozzle seat until energized
C) monitors fuel quantity entering the CR pump
D) restricts flow area of the rail inlet

Question

Quizplus · Accepted Answer

The admission valve in diesel common rail (CR) fuel systems holds the high-pressure fuel away from the nozzle seat until it is energized, allowing precise control of fuel injection timing and quantity.

What Is the Function of the Admission Valve Used in Some