Safran Aircraft Engines

Snecma

Didier Queant

Dominique Magnaudeix

Francois Marie Paul Marlin

Lucas Antoine Christophe Lauwick

François Marie Paul Marlin

Frederic Imbourg

Maxime Mathieu Mourot

Sylvain Huchet

Francois Marie Marlin

Frédéric Imbourg

A method for correcting the radial moment weight of a vane, includes the step of providing a vane extending along an axis of elongation (Z) between a free end and an opposite root, the vane having a blade made of composite material and having a leading edge. The method further includes the steps of measuring the radial moment weight of the vane and comparing the measured radial moment weight to a reference value and adjusting the radial moment weight of the vane according to the result of the comparison. The vane has at least one adjustment cavity extending along the leading edge and opening into the free end of the vane. The adjustment is carried out by inserting a first material into the adjustment cavity.

Method for correcting the radial moment weight of a vane for an aircraft turbine engine

Turbojet engine fan module wheel, including a plurality of blades made of composite material, each blade having a root assembled with a base distinct from the bases of the other blades, each base having a groove extending axially and opening out on the side of the upstream face and on the side of the downstream face, each root cooperating by axial interlocking in a form-fitting manner, for example in the shape of a dovetail, with the groove of the base, whereby the root is retained on the base along the radial and circumferential directions, and each base cooperates with at least one part configured to axially block the root within the groove of the base, whereby the root is retained along the axial direction.

Fan module impeller, and jet turbine engine equipped with such an impeller

A repair method for repairing an assembly including a main body and an old reinforcement, the assembly including an initial hole passing through the old reinforcement and at least a portion of the main body, the method including removing the old reinforcement; positioning a plug in the initial hole in the main body; fastening a new reinforcement on the main body, the new reinforcement covering the plug; and forming a new hole passing through the new reinforcement and at least a portion of the main body.

Repair of an assembly comprising a main body and a reinforcement

A rotor of a turbomachine, such as a multi-flow turbojet engine fan, has a disc including, on the rim thereof, substantially axial slots with a dovetailed cross-section, and blades mounted individually in the slots, an axial wedge positioned between the root of the blades and the bottom of the slots, and a transverse lock providing upstream axial immobilization of the blades in the slot thereof. The lock is guided in radial notches formed in the flanks of the slots and radially supported against the wedge. The axial wedge is immobilised in the upstream direction, butting up against a transverse annular component secured to the disc.

Turbomachine rotor with a means for axial retention of the blades

Growing community of inventors

Moissy-Cramayel, France

Didier Queant