CONTROL OVER DUAL-FLOW TURBOJET ENGINE WITH AUGMENTER Russian patent published in 2016 - IPC F02C9/26 

FIELD: engines and pumps.

SUBSTANCE: claimed invention can be used fuel feed control systems of augmented dual-flow turbojet engine. Claimed control procedure consists in the measurement of pressure $$(p_c^{*})$$ behind the compressor and that $$(p_t^{*})$$ behind the turbine and the calculation of the pressure difference at the turbine $$({\pi }_{T\sum }^{*}=p_c^{*}/{р}_t^{*}).$$ Then, pressure difference variation rate $$(\delta {\pi }_{T\sum }^{*})$$ is defined to determine the fuel feed variation rate (δG_TA) at the feed into the combustion augmenter. At augmented conditions the fuel feed into the augmenter is adjusted subject to the ratio between said pressure difference variation rate and said fuel feed variation rate at the turbine $$(\delta {\pi }_{T\sum }^{*}/\delta G_{TA})$$ to make it approximate to zero.

EFFECT: higher accuracy of fuel feed control.

2 cl, 4 dwg