METHOD FOR CONTROLLING THE START OF AN AUXILIARY GAS TURBINE ENGINE AT HIGH FLIGHT ALTITUDES Russian patent published in 2022 - IPC F02C9/26 

FIELD: aviation technology.

SUBSTANCE: invention relates to the field of aviation technology, namely to aviation auxiliary gas turbine engines, in particular to a method for controlling the start of an auxiliary gas turbine engine at high altitudes. A method for controlling the start of an auxiliary gas turbine engine at high altitudes, by the linear connection where is the set value of the acceleration of the turbocharger rotor, and n is the actual value of the turbocharger rotor speed, using an algorithm for diagnosing the engine hot start, based on tracking the behavior of the engine parameters controlled by the automatic control system. At the same time, the algorithm for diagnosing the engine hot start consists of conditions where t_t is the temperature of the gases behind the turbine, n_tc is the speed of rotation of the turbocharger rotor, G_f is fuel consumption, G_f.max is the maximum fuel consumption, A₁, A₂, A₃ the constants defined for the selected engine, while the program of the automatic control system regulator uses an algorithm for parrying the engine hot start, during which, at the first stage, the value of the maximum fuel consumption into the combustion chamber G_f.max is adjusted, then the dosing needle is moved to the position corresponding to G_f =G_f.max, with the maximum rate, then, at a given rate, the fuel consumption in the combustion chamber of the auxiliary gas turbine engine is reduced until the removal of the engine hot start sign in the program of the electronic regulator of the automatic control system.

EFFECT: ensuring reliable start of the auxiliary gas turbine engine at altitudes up to 11,000 meters without correcting the control laws depending on external conditions.

1 cl, 3 dwg