| Patent application number | Description | Published |
|---|
| 20090194485 | DETECTING THE CLOGGING OF A FLUID FILTER - The invention relates to the field of fluid filters. It provides a method of detecting clogging of a fluid filter, which method comprises measuring, at successive sampling instants, the pressure difference ΔP from upstream to downstream across the filter, and then calculating the first time derivative {ΔP}′ of the pressure difference ΔP at different instants, and then sending a clogging signal S | 08-06-2009 |
| 20110041474 | METHOD AND SYSTEM FOR DETECTING THE INGESTION OF AN OBJECT BY AN AIRCRAFT TURBINE ENGINE DURING A MISSION - The invention relates to a method and a system for detecting the ingestion of an object by an aircraft turbine engine during a mission. The method includes the steps of acquiring during the mission digital images of the operating fan of the turbine engine, these images being acquired at an acquisition frequency proportional to the speed of rotation of the fan and to the number of blades of the fan (E | 02-24-2011 |
| 20110178772 | METHOD AND SYSTEM FOR MONITORING A TURBOJET ENGINE - A method and a system for monitoring a turbojet engine. The method acquires a signal representative of a vibratory level of an operating rotor of the turbojet engine, acquires a rotation speed of the rotor during operation, compares the amplitude of the signal with at least one predetermined threshold based on the rotor rotation speed and, in event an amplitude peak exceeds the threshold, analyzes the signal over a time slot defined around the amplitude peak to determine if the phenomenon at the origin of the amplitude peak is a mechanical shock undergone by the rotor of the turbojet engine or an electronic interference of the signal. | 07-21-2011 |
| 20110199249 | METHOD FOR DIGITIZING AN ANALOGUE SIGNAL WITH AN ANALOGUE-DIGITAL CONVERTER OF DETERMINED SHANNON FREQUENCY - A method for forming a global spectrum (Sg) of an analogue signal (A) to be digitized, in which:
| 08-18-2011 |
| 20110259093 | METHOD FOR DETECTING RESONANCE IN A ROTOR SHAFT OF A TURBINE ENGINE - A method for detecting resonance in a rotor shaft of a turbine engine, the resonance frequency (Fr) of the said rotor shaft belonging to a resonance band centred on an estimated resonance frequency (Fr | 10-27-2011 |
| 20120148400 | SYSTEM FOR DETECTING AN EPHEMERAL EVENT ON A VANE IMPELLER OF AN AIRCRAFT ENGINE - The invention relates to a method and a system for monitoring an ephemeral event on a vane impeller ( | 06-14-2012 |
| 20120229290 | METHOD AND DEVICE FOR MONITORING TORSIONAL VIBRATIONS OF A ROTARY SHAFT OF A TURBINE ENGINE - A method of monitoring twisting vibration of a rotary shaft of a turbine engine includes obtaining a vibratory acceleration signal from a sensor located on a stationary component of the turbine engine. This vibratory signal is characterized by a carrier frequency. The method also includes evaluating a frequency spectrum of the vibratory signal and searching for a pair of spectral lines of amplitudes greater than at least a first threshold. The lines are distributed in the spectrum on either side of the carrier frequency of the vibratory signal, and spaced apart therefrom by a twisting frequency of the shaft. Where appropriate, the method includes issuing a warning message. | 09-13-2012 |
| 20130186056 | GAS TURBINE ENGINE COMPRISING MEANS FOR AXIALLY RETAINING A FAN OF THE ENGINE - A gas turbine engine including: a casing in which is mounted at least one shaft for driving a fan solidly connected to a driving drum including blades to compress an airflow moving from upstream to downstream in the engine; and an axial retention mechanism, on standby, solidly connected to the casing and arranged to come into contact with the driving drum such as to prevent axial movement of the drum in event of breakage of the driving shaft. | 07-25-2013 |
| 20130197747 | SYSTEM FOR DETECTING AN IMPACT ON AN AIRCRAFT ENGINE IMPELLER WHEEL - The invention relates to a method and a system for detecting an impact on an impeller wheel ( | 08-01-2013 |
| 20130211768 | MONITORING SYSTEM FOR AN ENGINE TEST BENCH - A monitoring method and system for a test bench for at least one engine component, including: an acquisition mechanism to acquire time signal packets corresponding to measurements of endogenic and exogenic parameters specific to the combination of the test bench and the engine component, at successive instants; and a processor to construct an endogenic indicator vector and an associated exogenic indicator factor at each instant of the successive instants, using time signal packets earlier than the instant, to identify a context class for the exogenic indicator vector, and to calculate a risk probability of the endogenic indicator vector conditioned by the identified context class for the associated exogenic indicator vector using at least one anomaly detector, to produce a diagnostic of a state of the test bench and engine component combination. | 08-15-2013 |
| 20130239653 | SYSTEM FOR DETECTING DEFECTS ON AN AIRCRAFT ENGINE IMPELLER WHEEL - A method and an on-board system for detecting impact on an impeller wheel of an aircraft engine. Deflection signals representative of the deflections on the blades of the impeller wheel are acquired. Each of the deflection signals is correlated with a pulse signal typical of an impact on a sound blade at the rotation frequency of the engine, in order to identify impacts on the impeller wheel. The impact signals are extracted from among the deflection signals. The impact signals are transmitted to the ground in order that the signals are analysed to detect defects on the blades of the impeller wheel. | 09-19-2013 |
| 20140236451 | AVIONICS METHOD AND DEVICE FOR MONITORING A TURBOMACHINE AT STARTUP - A method of characterizing a turbine engine, the method comprising:
| 08-21-2014 |
