Safran Aircraft Engines

Snecma

Eddy Stephane Joel Fontanel

Giuliana Elisa Rossi

Olivier Renon

Maxime Didier Delabriere

Philippe Pierre Vincent Bouiller

Gerard Philippe Gauthier

Laurent Donatien Behaghel

Wilfried Lionel Schweblen

Mathieu Jean Pierre Trohel

Benjamin Philippe Pierre Pegouet

Matthieu Fiack

Jean-Michel Boiteux

Matthieu Etienne Attali

Julien Foll

Abdelkader Benyahia

Alberto Martin Matos

Emmanuel Da Costa

Helene Orsi

Philippe Rembry

A turbine rotor for aircraft turbine engine includes a mobile disc supporting mobile blades, the mobile disc including a plurality of slots into which are inserted the roots of the mobile blades a passage being formed between the bottom of the slots and the roots of the mobile blades inserted into the slots. The rotor also includes a circulation channel configured to allow circulation of fluid, the circulation channel including the passage, and a calibration device configured to allow the flow of a first fluid flow rate in the circulation channel when the temperature within the channel is less than a predetermined temperature threshold value, and to change state so as to allow the flow of a second fluid flow rate, greater than the first flow rate, in the channel, when the temperature within the channel is greater than or equal to said predetermined threshold value.

Device for detecting cooling abnormalities for an aircraft turbine engine

A turbomachine including an exhaust housing, including a plurality of arms, the space separating the arms defining openings in which there circulates a primary air flow of the turbomachine, at least one conduit, a) configured to collect a compressed air flow at one of the ends of same, b) the other end of the conduit being connected to at least one opening of the exhaust housing, so as to insert the collected air flow into the primary air flow, the collected air flow having, when inserted into the opening, a Mach number less than or equal to 0.5.

Turbomachine with collection of a compressed air flow

A device for protecting against oil leaks towards the rotors of a turbomachine turbine includes an upstream cavity in which an oil/air mixture can circulate, the upstream cavity being delimited downstream by a journal of the turbine rotor and on the outside by a sealing flange of the journal extending axially in an upstream direction, a downstream cavity opening towards the discs of the turbine and communicating with the upstream cavity via a plurality of ventilation holes provided in the journal, and an upstream annular deflector fixed to the sealing flange of the journal and extending radially inwards towards the ventilation holes The upstream deflector has oil passage ports provided at the end of same secured to the sealing flange of the journal.

Device for protecting against oil leaks towards the rotors of a turbomachine turbine

A journal configured to be driven in rotation in a housing of a turbine engine, or for an aircraft, the journal including: a circumferential main body including plural ventilation openings configured to allow plural axial airflows to circulate from upstream to downstream in the turbine engine, two consecutive ventilation openings being connected by a connecting segment, and a circumferential ring for recovering a flow of lubrication oil, which ring is rigidly connected to the main body and is radially inside the ventilation openings, the circumferential ring including plural radial discharge openings for allowing plural radial flows of oil to be discharged towards the outside, each discharge opening being radially aligned with a connecting segment of the main body to allow each flow of oil to be discharged radially between the airflows.

Journal for a turbine engine comprising a ring for recovering a flow of lubricating oil with a plurality of lubricating oil discharge ports

In an axial-centrifugal compressor, the rotor of which includes an impeller, axial play is controlled by a special air ventilation to the rotor, by a circuit including two parallel arms, flow rates of which are both controlled by respective veins, and moreover the temperature in one of them is changed by a heat exchanger. The ventilation air is thus controlled, both in terms of temperature and flow rate.

Axial-centrifugal compressor having system for controlling play

Growing community of inventors

Palaiseau, France

Eddy Stephane Joel Fontanel