METHOD CONTROLLING FUEL FEED IN GAS TURBINE ENGINE COMBUSTION CHAMBER Russian patent published in 2012 - IPC F02C9/26 

FIELD: engines and pumps.

SUBSTANCE: invention may be used in gas turbine engine ACSs. Additional, actual fuel feed to combustion chamber nozzle manifold is measured to use experimentally defined dependence for calculate the number of nozzles required to feed measure fuel amount into combustion chamber at pressure different at nozzles sufficient for fuel spray. Calculate number of nozzles is compared with actual amount. If calculated amount is smaller than actual number, using separate shut-off valves (SV, one SV for each nozzle) fuel is fed only to group of nozzles of calculated number of nozzles. Note here that center of said group of nozzles is located at the highest point of manifold. In time interval defined experimentally for every gas turbine engine, nozzle nearest to said group is connected on manifold right side, if seen from engine nozzle side, while nozzle nearest to the group of nozzles on manifold left side is disconnected in time interval. Said operation is repeated unless calculated number of nozzles equals actual one.

EFFECT: efficient operation of ACS and higher reliability of gas turbine engine.