Techspace Aero S.a.

Safran Aero Boosters Sa

Hervé Grelin

Didier Honore

Sacha Berard

Philippe Renard

An annular cover for a lubrication chamber of a rotary bearing of a turbomachine. The cover includes a wall that is generally circular and flared with an orifice that is designed to receive a transmission shaft opposite an assembly surface for the cover, and at least one duct communicating with the inside of the wall and extending along the wall as far as the assembly surface. The duct is formed in the thickness of the body of the wall which is made from the same material, and which includes a composite material with a thermoplastic matrix and carbon fibers.

Annular cover delimiting a turbomachine lubrication chamber

The present invention relates to a method for making a preform for a composite with a thermoplastic matrix, said preform comprising one or several layers of reinforcement fibers sewn on a support by means of at least one attachment yarn and according to the TFP process, characterized in that the method comprises one or several steps for depositing a thermoplastic-resin layer on the support or on a layer of reinforcement fibers.

Method for making a preform

A composite material turbomachine vane comprising a blade is provided, wherein the vane comprises a first resin reinforced with long fibers and a second resin reinforced with short fibers, the first and second resins being chemically compatible or identical, the long fibers serving to stiffen the vane and the short fibers dispersed in the second resin serving to fill in the parts of the vane that are not reinforced by the long fibers and giving the vane its substantially final shape.

Composite-material vane

The present invention relates to a turbomachine rectifier comprising a plurality of stator vanes () connecting an inner collar () to an outer collar (), each of said vanes () comprising a blade () and a blade-head platform (), comprising an intermediate piece () arranged between the inner collar () and the outer collar () and fastened to the outer collar (), said intermediate piece () comprising openings () for the passage of the vane blades () and said vane platforms () resting, on one side, on the outer collar () and, on the other side, on the intermediate piece ().

Growing community of inventors

Villeblevin, France

Hervé Grelin