VARIABLE FRESH AIR DUCT (VFAD) ACTUATOR CONSTRUCTION/OPERATION (13B-MSP (HIGH POWER))


BHE011320130T04

• A diaphragm design has been adopted.

• Normally, the rod is pushed by the force of the spring, opening the VFAD valve. When intake manifold vacuum is applied to the diaphragm chamber, the rod is pulled, closing the VFAD valve.

1
VFAD valve
2
VFAD actuator
3
Return (Open)
4
Pull (Close)