Safran Nacelles

Aircelle Limited

Jean-Paul Rami

Patrick Gonidec

Olivier Kerbler

Marc Versaevel

Jean-Baptiste Goulard

Hakim Maalioune

Jérôme Corfa

Hervé Hurlin

Caroline Coat-Lenzotti

Philipe Guerin

Stephane Tirel

Ambre Allard

Matthieu Vanderlinden

Vincent Rigolet

Philippe Micheau

Alain Berry

Jean-Denis Sauzade

Rémi Billard

Arnaud Carles-Espiteau

Raymond Robert

François Brefort

Julien Drant

Alexandre Phi

Remko Moeys

The present disclosure concerns the communication between electronic systems in an aircraft subassembly such as a propulsion unit. This communication is at least partially carried out by light signals transmitted through at least one interior volume of the sub-assembly, this interior volume defining an optical channel. To this end, at least one of these systems includes an emitter arranged to emit a light signal and modulate it depending on data to be transmitted generated by this system, and at least one other of these systems includes at least one receiver capable of receiving this light signal.

Device and method for data communication in an aircraft subassembly

A method for de-icing or anti-icing an aircraft portion having at least one piezoelectric element fastened on the inner face of the aircraft portion includes, during a design phase of the aircraft portion, placing the piezoelectric element on an area of the aircraft portion to determine frequencies of resonance and increased dynamic coupling, and during the de-icing or anti-icing of the aircraft portion, the same piezoelectric element is excited according to the natural frequencies of the area.

Method for supplying electric power to an ultrasonic nacelle de-icing and anti-icing

An active device for attenuating the acoustic emissions of an aircraft turbojet engine includes circulation conduits for a pressurized air flow rate supplying rotary elements each having a pulsation system for the delivered air. The rotary elements are controlled in amplitude and phase and deliver, to outlet diffusers, a pulsed air flow rate with a pulsation at the frequency of the noise to be attenuated having an amplitude and a phase adjusted according to a local feedback law with microphones to attenuate the radiated acoustic power.

Active device for attenuating acoustic emissions for a turbojet engine including controlled turbines

An improved thrust reverser for an aircraft propulsion assembly includes redirection of the air flow for performing the thrust reversal by one or more closure membranes, i.e. by thin and flexible structures deployed across the propulsion assembly. The improved thrust reverser includes at least one closure membrane arranged to deflect at least one portion of the air flow in the direction of the evacuation structure when the thrust reverser is in the reverse jet position and an intermediate structure movable in rotation relative to the fixed structure.

Membrane thrust inverter for an aircraft propulsion unit

An acoustic attenuation panel for a turbojet engine nacelle is provided by the present disclosure. The panel includes at least one alveolar core disposed between at least one internal skin and at least one external skin. In one form, the alveolar core includes a plurality of alveoli having a helical-shaped cavity along an axis in a direction normal to at least one internal skin and at least one external skin.

Acoustic attenuation panel for a turbojet engine nacelle

The present disclosure provides a thrust reverser device that is integrated in an aircraft nacelle. Blocking flaps are stored inside a mobile cowl disposed in a downstream section of the nacelle, under deflection cascade assemblies during direct-jet operation of the nacelle. Various devices are provided for executing the passage from direct-jet operation to reverse-jet operation in two stages: the mobile cowl moves in translation towards the downstream end of the nacelle; and each flap is then deployed in the main air flow path.

Integrated thrust reverser device and aircraft engine nacelle equipped therewith

Growing community of inventors

Gonfreville l'Orcher, France

Jean-Paul Rami