Patent ID: 11939875
Assignee: RTX CORPORATION
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  G | IPC F  G

Claim 0:
1. A drive system of a gas turbine engine, the drive system comprising:
a first drive shaft and a second drive shaft operable to rotate within the gas turbine engine;
a first sensor operable to detect rotation of the first drive shaft;
a second sensor operable to detect rotation of the second drive shaft;
a drive gear system coupled to the first drive shaft and the second drive shaft; and
a processing system coupled to the first sensor and the second sensor, the processing system operable to:
determine a timing variation based on output of the first sensor and output of the second sensor;
determine a torsional deflection between the first drive shaft and the second drive shaft based on the timing variation; and
detect a health status of the drive system based on the torsional deflection, wherein the health status identifies whether a fault condition of the drive gear system is detected based on the torsional deflection.