Snecma

Mersen France Gennevilliers Sas

Jean-Bernard Forgue

Patrick Jean-Louis Reghezza

Thierry Nitre

Carole Stochmil

Jack-Pierre Lauvergnat

Nicolas Christian Triconnet

Alain Timon

Didier Monnet

Thomas Chrzastek

Dominique Gaveau

Henry Louis Paul Nicolas Loiseau

Henry Louis Loiseau

A turbomachine rotor including a disc including a rim and axial slots machined in the rim for the individual housing of blades, a ring being attached to one face of the rim, the ring being pierced with holes in the axial continuation of the slots, at least some of the holes in the continuation of the slots including a plug. The plug includes a first half-plug made of a first wear-resistant material and a second half-plug made of a second material, one of the two half-plugs bearing on one side of the ring and the other bearing on the other side of the ring and being connected to one another through the hole. The plug is configured to form an anti-wear device.

Turbomachine rotor comprising an anti-wear plug, and anti-wear plug

A seal for an intermediate platform provided between two adjacent blades in the rotor of a turbine engine, the seal having an elongate shape with an upstream end and a downstream end, and including transversally, in the direction of the width thereof, a contact portion, an attachment portion, and a flexible portion between the attachment portion and the contact portion. The cross section of the seal has an open-ended shape between the two ends thereof.

Seal for a platform in the rotor of a turbine engine

An elastomer material seal for an interleaved platform between two adjacent blades in a turbomachine rotor is disclosed. The seal is of elongate shape and includes transversely a contact part, an attachment part, and a flexible part between the attachment part and the contact part. The seal is noteworthy in that it further includes a local reinforcement of the flexible part, to avoid the tearing that would result from centrifugal forces on the seal. The local reinforcement of the flexible part includes at least one transverse rib on the flexible part.

Platform seal in a turbomachine rotor, method for improving the seal between a platform and a turbomachine blade

A turbomachine rotor comprising a disk the periphery of which has a plurality of slots, a plurality of removable blades, each blade comprising a blade root housed in one of the slots, and a downstream flange, secured to said disk and against which each blade root bears. Further, the rotor comprises, between each blade root and the downstream flange, an elastic buffer intended to maintain a gap between the blade root and the downstream flange.

Turbomachine rotor and turbomachine comprising such a rotor

A shim for a turbomachine blade is disclosed. The shim includes two branches which wrap around flanks of a blade root, and two tabs. Each of the tabs extend from one end of a respective one of the two branches. The tabs are folded towards each other and are interconnected in such a manner as to prevent them from unfolding. Advantageously, the shim includes a connection part which interconnects the tabs in such a manner as to prevent them from unfolding. The connection part is assembled to the tabs in such a manner as to allow the branches of the shim to spread apart. For example, the connection part can be suitable for stretching in the direction for spreading the branches apart.

Shim for a turbojet blade

A device for damping vibration of a retention ring for axially retaining turbomachine fan blades, the blades being designed to be mounted via their roots on a rotary disk having an annular flange extending axially and provided with a plurality of radial crenellations for coming into contact with a plurality of complementary radial crenellations of a retention ring designed to be mounted around the disk flange, the device comprising an abutment element of elastomer material designed to be received axially between two adjacent crenellations of the flange and two adjacent complementary crenellations of the retention ring, and radially between the flange of the rotary disk and the retention ring, said abutment element presenting contact surfaces for coming into contact with the adjacent crenellations, with the retention ring, and with the flange of the rotary disk.

Growing community of inventors

Montacher-Villegardin, France

Jean-Bernard Forgue