Safran Aircraft Engines

François Pierre Michel Comte

Vincent François Georges Millier

Arnaud Lasantha Genilier

Fabien Stéphane Garnier

Alain Dominique Gendraud

Michael Piers Hansom

Geoffrey Juan Desmeure

Fabien Stephane Garnier

Lucie Marie Ida Lanciaux

Anais Suzanne Amelie Gaubert

Arnaud Cyril Longuet

Marine Laetitia Camille Chevalier

A device () for cooling an annular outer turbine casing () includes at least one circumferentially extending tube () having an air inlet intended for conveying cooling air, the tube having a radially inner wall provided with cooling air discharge openings and a radially outer wall arranged radially opposite each other, an air inlet manifold (), the inlet of the tube opening into the manifold, the tube () including at least one intermediate wall extending over a circumferential portion of the tube from the air inlet, the intermediate wall being located radially between the radially inner wall and the radially outer wall, the radially inner wall and the intermediate wall forming a first air conveying duct, the radially outer wall and the intermediate wall forming a second air conveying duct extending circumferentially beyond the first air conveying duct, relative to the air inlet.

Device for cooling an annular outer turbine casing

The invention relates to a lubrication device () for a turbo machine, comprising:

Lubrification device for a turbo machine

A method of determining a maximum acceptable alternating stress at a point of a part subjected to cyclic loading: simulating that the part is subjected to constant loading equal to a threshold value during a level period, and assuming that the part has elasto-viscoplastic behavior; from the results of the simulation, determining a final static stress at the point at the end or after the end of the level period; and for the point under consideration, using a Goodman diagram to determine the maximum acceptable alternating stress, which is determined for a static stress equal to the final static stress; the duration of the level period being equal to the duration of the loading of the testpieces that were used to draw up the Goodman diagram.

Method of determining a maximum acceptable alternating stress for a part that is subjected to cyclic loading; a unit for determining such a stress

A movable ring assembly () for a turbine engine turbine () that is mounted between two successive rotor discs () and () of said turbine (), said rotor discs () and () being fixed to each other by bolting, characterised in that it comprises:&#x2014;a fixing ferrule () fixed between the upstream () and downstream () discs by the bolting thereof; a part forming a movable ring (), said part supporting radial sealing members () and being fixed between the upstream disc () and the ferrule ();&#x2014;and a seal () interposed between said part forming the movable ring () and the ferrule ().

Movable ring assembly for a turbine engine turbine

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Moissy-Cramayel, France

François Pierre Michel Comte