Safran Aircraft Engines

Clément Charles Jérémy Coiffier

Olivier Renon

Laurent Cédric Zamai

Patrick Jean Laurent Sultana

Patrick Sultana

A turbine includes a first rotor and a second rotor that can rotate in opposite directions and are interleaved. The turbine further includes a ring to which abradable material is secured, the ring, unsegmented, extending between the first impellers of the first rotor and the second rotor, over a sector of between 350 and 360°, and, axially between an upstream end and a downstream end of the ring, the ring is held with the second rotor.

Gas turbine for twin-rotor aircraft

Counter-rotating turbine (C) of a turbomachine () extending about an axis (X) and comprising an inner rotor configured to rotate about the axis of rotation (X), and comprising an inner drum on which an inner movable blading () is fixed, an outer rotor configured to rotate about the axis of rotation (X) in a direction opposite to the inner rotor, and comprising an outer drum () on which an outer movable blading () is fixed, the outer movable blading () comprising at least one fixing rod () extending through an orifice () of the outer drum (), the outer movable blading () being fixed to the outer drum () via a clamping means () fixed to the fixing rod () from an outer face of the outer drum (), a set ring () being disposed around the fixing rod () in the orifice () of the outer drum ().

Device for attaching blades in a contra-rotating turbine

A rotor for a contrarotating turbine comprising a drum and a blading mounted inside, the drum comprising a hook delimiting a housing having an outer wall and an inner wall, the blading comprising a blade and an outer platform provided with spoiler placed inside the housing, wherein the rotor comprises a foil comprising an elastic inner wing and an outer wing, the outer wing being arranged radially between the spoiler and the outer wall, the inner wing having a first support with the inner wall and a second support with the spoiler, the inner wing being arranged in the housing so as to exert a force on the spoiler so as to press the spoiler against the outer wall via the outer wing.

Growing community of inventors

Moissy-Cramayel, France

Clément Charles Jérémy Coiffier