SYSTEM TO CONTROL DUAL-SHAFT GAS TURBINE COMPRESSOR STATOR POSITION Russian patent published in 2015 - IPC F04D27/00 

FIELD: engines and pumps.

SUBSTANCE: control system comprises adder with its output connected with stator position control mechanism, switch with output connected with adder first input, 1^st and 2^nd program units, low-pressure rotor reduced rpm computation unit connected with low-pressure rotor rpm transducer and engine intake air temperature meter. This system is equipped with stator position pickup and high-pressure rotor rpm transducer, comparator and turbine cooling system electrical fluid valve. Comparator input is connected with high-pressure rotor rpm transducer while comparator output is connected with turbine cooling system electrical fluid valve. Switch incorporates controlled input connected with electrical fluid valve and first and second inputs connected with outputs of the first and second program units, respectively. Inputs of said program units are connected with low-pressure rotor reduced rpm computation unit. Stator position pickup is connected with adder second input.

EFFECT: higher efficiency of control, fuel saving in cruising mode.

1 dwg