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Application : aircraft
Model : An-158 , Аn-148
Plant :
SP "FED"
GP HMZ "FED"
ND-MS2 meters the fuel supply to AI-450-MS engine according to electronic control system commands, and supplies fuel for inlet guide vanes and air bypass valve actuation.
Description: The fuel metering unit provides:
rising of fuel pressure in boost stage of fuel metering unit;
rising of fuel pressure in main stage of fuel metering unit;
supplying of fuel delivery to starting fuel spray nozzles;
supplying of fuel delivery to main fuel spray nozzles;
supplying of fuel to actuating devices;
engine cutoff by electrical command;
filtration of fuel;
signaling of fuel filter clogging;
limitation of minimum and maximum fuel delivery rate;
metering of fuel delivery by automatic control system.