Governor sleeve moves to increase V.M.O. area
Pressure difference sensed by pressure drop
control which opens pressure drop valve
Reduced pressure difference across regulator
acts on servo piston to increase pump delivery
and engine speed
Increased compressor delivery pressure acts
on capsule to further increase fuel flow
At engine speed selected, governors control
V.M.O. and pressure drop control orifice
areas, thus stabilizing pressure difference
across regulator
Pump gives fuel output to match engine
requirements
CAPSULE
ASSEMBLY