METHOD OF CONTROLLING TWIN-ROTOR GAS-TURBINE ENGINE OF AIRCRAFT AT STOPPAGE Russian patent published in 2018 - IPC B64C19/00 F01D21/00 F02C7/36 

Abstract RU 2648528 C1

FIELD: motors and pumps.

SUBSTANCE: invention relates to controlling an aircraft engine. Method of controlling a twin-rotor gas turbine engine of aircraft at shutdown comprises reducing rotational speed of the high-pressure rotor shaft and the low-pressure rotor shaft. Rotational speed of the high-pressure rotor shaft and the low-pressure rotor shaft is reduced until the rotors achieve the same rotational speed. Rotors engage with each other by a freewheel located between the shafts, after which the rotor speed is reduced to a stop.

EFFECT: invention provides stable supply of oil to the engine mounts at stoppage before the complete stoppage of all the motor rotors, and also reduces the "sticking" effect of the high-pressure rotor shaft during shutdown.

1 cl, 1 dwg

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RU 2 648 528 C1

Authors

Bystrov Valentin Vasilevich

Kritskij Vasilij Yurevich

Kunitsa Sergej Petrovich

Dates

2018-03-26Published

2016-12-09Filed