METHOD AND DEVICE TO AUTOMATICALLY CONTROL FUEL FEED Russian patent published in 2009 - IPC B64C13/08 

FIELD: engines and pumps.

SUBSTANCE: in compliance with proposed method, difference between actual and preset parametres that governs engine operation is determined. Control signal proportional to said difference is sent into program controller operating in compliance with fuel feed algorithm subject to engine air pressure to automatically vary program controller setting to zero synch error signal. Fuel feed is effected by acting on metering mechanism drive by program controller output signal. Device to automatically control fuel feed into aircraft gas turbine engine main combustion chambers comprises comparator, control signal shaper, and program controller to feed fuel in compliance with air pressure. The latter additionally incorporates automatic tuning circuitry designed to vary program to cope with mismatching and having its input connected to control signal shaper. Note that it makes and additional input to program controller. Note also that output of the latter is connected with fuel feed metering mechanism drive.

EFFECT: increased quality of control.

2 cl, 1 dwg