Safran Aircraft Engines

François Maurice Marcel Demaison

Josselin Xavier Coupard

Alméric Pierre Louis Garnier

Valentin Francis Joël Facquet

Marion Marguerite Jedruszek

Franck Serge Jacques Liotte

Jean-Robert André Fernand Pougeon

Analysis device for detecting solid particles in suspension in a lubricant, the analysis device comprising one or more ferromagnetic solid particle sensors, one or more other sensors able to detect non-ferromagnetic solid particles, and one or more magnets. The ferromagnetic solid particle sensors are offset in a direction perpendicular to a main direction of flow of the lubricant in relation to the other sensors, and the magnets are arranged so as to attract ferromagnetic solid particles towards the sensors of ferromagnetic solid particles by drawing them away from the other sensors.

Analysis device for detecting solid particles in a lubricant

Method for acquiring data for detecting damage to a bearing, comprising the following steps: obtaining a vibration signal from the bearing over a period of time, determining spectrograms of said vibration signal at various instants of the period of time, detecting the peaks on each spectrogram, from among the detected peaks, retaining the peaks which, in spectrograms corresponding to successive instants and transformed through synchronous resampling at a rotational speed of the bearing, would be present at the same frequency, with a predetermined tolerance, identifying spectral lines corresponding to the retained peaks, and storing information representative of said spectral lines in a record able to be used by a unit for detecting damage to the bearing.

Method for acquiring data for detecting damage to a bearing

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.

Method for monitoring elements in a turbine engine combustion chamber

A method for monitoring an aircraft turboshaft engine including a vibration sensor capable of outputting a vibration signal and a spark plug. The method includes, based on the vibration signal output by the vibration sensor, a step of determining a level of vibration of the turboshaft engine as well as a step of determining an indicator of spark plug wear.

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Moissy-Cramayel, France

François Maurice Marcel Demaison