METHOD FOR PROTECTING BYPASS TURBOJET ENGINE AGAINST STALL DURING OPERATION Russian patent published in 2017 - IPC F02C9/46 

FIELD: engines and pumps.

SUBSTANCE: high-pressure compressor discharge pressure P_c is measured periodically at each interval of 0.01…0.1 s and when the pressure value deviates more than 1-100% relative to the measurement preceding the current values, at a constant value of n₁, the engine is shut down. Since the start of the compressor discarge pressure P_c drop the pressure is preferably measured at each interval equal to 0.02…0.05 s. Implementation of the invention allows to prevent the development of the engine stall caused by a variety of reasons (misuse, damage of rotor blades, etc.) during the operation of the gas turbine engine in the ground-based installation.

EFFECT: reduced costs for reconstructive maintenance of engines by timely stop and prevention of damage propagation in the enginegas-air flow duct and systems.

2 cl, 1 dwg