METHOD AND DEVICE FOR DETECTING ROTATING FLOW STALL IN A TURBOJET ENGINE COMPRESSOR Russian patent published in 2022 - IPC F04D27/02 

FIELD: aircraft engineering.

SUBSTANCE: present group of inventions relates to the general field of aviation gas turbine engines. In particular, it concerns the detection of a rotating flow stall in the compressor of an aircraft turbojet engine. The method for detecting a rotating flow stall contains: a step for determining (E90, E100) the level of change in static pressure in the combustion chamber of a turbojet engine relative to the average value of this static pressure; a step for comparing (E11) the level of change in static pressure relative to the first threshold (THR1); a step for comparing (E140) the temperature measured at the turbine outlet of a turbojet engine relative to the second threshold; and if the level of static pressure change exceeds the first threshold and the temperature at the turbine outlet exceeds the second threshold, the detection stage (E170) of the presence of a rotating flow stall is performed. Also presented are a device for detecting a rotating flow stall in a turbojet engine compressor and a turbojet engine containing such a device.

EFFECT: ensuring reliable detection of the presence of a rotating flow stall in a turbojet engine, the size of which corresponds to engines used in business aviation.

11 cl, 6 dwg