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AssigneeSafran Aircraft Engines
InventorsJosselin Xavier Coupard, François Maurice Marcel Demaison, Valentin Francis Joël Facquet, Marion Marguerite Jedruszek
Estimating the term…
Method for monitoring an ignition system of an aircraft turbine engine, the ignition system including a combustion chamber fitted with a spark plug and an ignition casing, the turbine engine including an accelerometer and an acoustic sensor. The method includes steps of: acquiring accelerometric and acoustic data representative of spark plug breakdown noises from signals generated by the accelerometer and the acoustic sensor, detecting breakdown peak times from the accelerometric data and the acoustic data, correlating the breakdown peak times detected from the accelerometric data and the breakdown peak times detected from the acoustic data, and establishing a diagnosis of the health of the ignition casing and a diagnosis for the spark plug on the basis of the correlation results.
A method for monitoring an ignition system of an aircraft turbine engine, the ignition system including at least one combustion chamber, at least one spark plug in the at least one combustion chamber, an ignition exciter box to excite the at least one spark plug, the turbine engine including at least one accelerometer and at least one acoustic sensor, the method comprising:
Device for monitoring an ignition system of an aircraft turbine engine, the ignition system including at least one combustion chamber, at least one spark plug in the at least one combustion chamber, an ignition exciter box to excite the at least one spark plug, the turbine engine including at least one accelerometer and at least one acoustic sensor, the device comprising a data processing unit adpated for acquiring accelerometric and acoustic data representative of breakdown noises of the at least one spark plug, on the basis of signals produced by the at least one accelerometer and the at least one acoustic sensor, detecting times of breakdown peaks of the at least one spark plug on the basis of the accelerometric data and times of breakdown peaks of the at least one spark plug on the basis of the acoustic data representative of breakdown noises of the at least one spark plug, correlating the times of the breakdown peaks of the at least one spark plug detected on the basis of the accelerometric data and the times of breakdown peaks of the at least one spark plug detected on the basis of the acoustic data representative of breakdown noises of the at least one spark plug and establishing a diagnosis of health of the ignition exciter box and a diagnosis of the at least one spark plug, according to the results of the correlating.
Dependencies are inferred from the claim text.