GAS-TURBINE ENGINE FUEL AND CONTROL SYSTEM Russian patent published in 1994 - IPC

FIELD: gas-turbine engine fuel feed and control systems provided with electronic devices for protection of engine against damage. SUBSTANCE: jet sensor-converter is connected with fuel cut-off unit through filter and temperature analyser and with fuel feed unit through divider-corrector unit. Engine control lever acts on jet portion of fuel feed unit; as a result, gas-dynamic characteristic of high-pressure turbocompressor changes. Sensor-converter converts parameters of the characteristic into electric signal whose logic processing is effected in electronic unit correcting the preset magnitudes of fuel flow rate from the position of the engine control lever at engine time constant irrespective of step change of α_ECL which makes it possible to avoid employment of on-board electronic computers. In an emergency (surge, flame-out, overspeeding of turbine) fuel cut-off unit operates by damage elimination algorithms through changing the mode of operation of the fuel feed unit. EFFECT: enhanced efficiency. 3 cl, 3 dwg