METHOD FOR SWITCHING ON THE REVERSING DEVICE OF A GAS TURBINE ENGINE WHEN LANDING AN AIRCRAFT Russian patent published in 2022 - IPC F02K1/76 

FIELD: aircraft engine building.

SUBSTANCE: invention relates to the field of aircraft engine building, in particular to methods for automatic control of gas turbine engines using thrust reverser. The method for turning on the reversing device of the gas turbine engine when landing the aircraft, which consists in the fact that the electronic regulator of the gas turbine engine regulates the thrust of the gas turbine engine and at the same time blocks the issuance of control signals to turn on the reversing device of the gas turbine engine when the aircraft is in the air; after the plane hits the runway, which is determined by the presence of the first information signal of the compression of the landing gear legs of the type "Two or three landing gear legs are compressed" or the second information signal "The landing gear is compressed" using the wheel speed sensor of the front landing gear of the aircraft, the engine control lever is moved to the minimum reverse thrust area, after that the information signal "Back thrust" is formed and the mechanical lock of the reversing device is opened, after opening the mechanical lock the information signal "Lock of the reversing device is not closed" is formed; however, after moving the engine control lever to the minimum reverse thrust area and the simultaneous presence of information signals “Two or three landing gear legs are crimped” or “Chassis is crimped”, “Back thrust”, “Reversing device lock is not closed” in automatic mode from the electronic engine controller issue a control action to transfer the reversing device from the “Forward thrust” position to the “Reverse thrust” position, the position of the reversing device is controlled (diagnosed) using a position sensor of the moving elements of the reversing device, an information signal to the cockpit “Reversing device is on” is formed, after transferring the reversing device to the “Reverse thrust” position, the engine control lever is moved to the position necessary to achieve the required reverse thrust value, and the engine operation mode is automatically set corresponding to the position of the engine control lever. Next, diagnostics of the aircraft rebound from the runway is carried out; traction, regardless of the presence of information signals "Two or three landing gear crimped" or "Chassis crimped".

EFFECT: present invention makes it possible to increase the reliability of turning on the reversing device of an aircraft engine when landing an aircraft with a rebound from the runway and to increase flight safety.

5 cl, 1 dwg