Patent ID: 11970949
Assignee: ROLLS-ROYCE DEUTSCHLAND LTD & CO KG
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 0:
1. A method for detecting a functional failure in a power gearbox in an aircraft gas turbine engine comprising:
a) measuring operational data in the gas turbine engine of at least two operational parameters dependent on a power generation and a power consumption of at least one chosen from the gas turbine engine and the power gearbox,
b) obtaining analyzed operational data comprising at least one chosen from time data, angular data of a rotation, frequency data and phase data from the measured operational data,
c) using the analyzed operational data in a comparison with stored baseline operational data to determine deviation data from the baseline operational data,
d) determining at least two time dependent trend data analyses from the deviation data, and
e) generating at least one chosen from a signal and a protocol for controlling the at least one chosen from the power gearbox and the gas turbine engine based on the at least two time dependent trend data analyses.