Component description for fuel injection valves - GF07.03-P-6010MCC

ENGINE 132.9 in MODEL 451.3 /4

Fig 1: Identifying Fuel Injection Valves

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Location

The fuel injection valves are located in the cylinder head upstream of the intake valves.

Task

The injection valves inject the fuel in the required amount before the intake valve.

Design

Fig 2: Identifying Fuel Injection Valves Design

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Function

When the solenoid coil is energized, the nozzle needle is raised about 0.1 mm by the solenoid armature against the force of the coil spring.

Fuel escapes through the outlet hole and is sprayed into the intake port in a finely atomized spray.

Fuel injection valves are actuated by mass impulses from the ME-SFI [ME] control unit (N3/10).