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
Title | Year | Author | Number |
---|---|---|---|
METHOD TO CONTROL TWO-ROTOR GAS-TURBINE ENGINE OF AIRCRAFT IN START-UP MODE DURING AUTO-ROTATION | 2016 |
|
RU2634505C1 |
METHOD TO CONTROL DOUBLE-ROTOR GAS-TURBINE ENGINE | 2017 |
|
RU2639260C1 |
METHOD TO PRESSURISE TWO-ROTOR GAS TURBINE ENGINE BEARINGS | 2008 |
|
RU2374470C1 |
GAS-TURBINE ENGINE STARTING METHOD | 2003 |
|
RU2241844C1 |
HELICAL FAN AVIATION GAS-TURBINE ENGINE | 2007 |
|
RU2358138C1 |
SHUTDOWN ROTORCRAFT SAFE LANDING SYSTEM | 2023 |
|
RU2823617C1 |
AIRCRAFT PROPFAN ENGINE | 2007 |
|
RU2379523C2 |
PROPFAN AIRCRAFT GAS TURBINE ENGINE | 2022 |
|
RU2816769C1 |
GAS TURBINE ENGINE LUBRICATION SYSTEM | 0 |
|
SU1015092A1 |
TWO-SHAFT GAS TURBINE ENGINE SUPPORT | 2018 |
|
RU2685154C1 |
Authors
Dates
2018-03-26—Published
2016-12-09—Filed