CONTROL METHOD OF GAS TURBINE ENGINE WITH AFTERBURNER Russian patent published in 2011 - IPC F02C9/34 F02C9/28 F02C9/48 F02C7/228 F02C7/26 

FIELD: engines and pumps.

SUBSTANCE: control method of gas turbine engine with afterburner consists in the fact that fuel consumption in afterburner is controlled by measured air temperature at engine entrance, air pressure after compressor, engine control lever position and fuel consumption in main combustion chamber (main fuel consumption). Measured engine control lever position and gas pressure differential at engine turbine allow controlling hydraulic cylinders of jet nozzle doors actuator. Additionally the measured engine control lever position, air pressure after compressor and air temperature at engine inlet help to form specified value of start-up fuel consumption in afterburner. Start-up fuel consumption is directed into afterburner, "hot streak" device is switched on and afterburner ignition is controlled by measured gas temperature in afterburner. If there is no afterburner ignition the start-up fuel consumption and "hot streak" device are switched off, the specified value of start-up fuel consumption is changed with 5% increment and the process of afterburner start-up is repeated. It is done till afterburner ignition is fixed. If changing of specified fuel consumption exceeded 50% and there is no afterburner ignition, the process is stopped and unscheduled engine regulation is performed.

EFFECT: improving operating quality of ACS and increasing economy of turbojet engine with reheat in afterburner modes.

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