Safran Aircraft Engines

Snecma

Snecma Moteurs

Jean-Marc Claude Perrollaz

Romain Nicolas Lagarde

Laurent Jablonski

Philippe Gérard Edmond Joly

Charles Jean-Pierre Douguet

François Jean Comin

Francois Jean Comin

Edouard Antoine Dominique Marie De Jaeghere

Damien Merlot

Adrien Jacques Philippe Fabre

Thierry Georges Paul Papin

Lilian Yann Dumas

David Marsal

Kaelig Merwen Orieux

Anthony Lafitte

Rémi Roland Robert Mercier

Antonin Etienne Diego Tessiereau

Jean-Louis Bertrand

Baptiste René Roger Batonnet

Pierre Grégoire Anton

Pascal Xavier Delaitre

Marie-Oceane Parent

Nadège Pauline Audrey Hugon

Marie-Charline Stéphanie Charbonnier

Nicolas Horn

Thomas Giraudeau

Marie-Charline Stephanie Charbonnier

Alexis Maxime Germain

Philippe Gerard Joly

An assembly for a turbine engine extending along an axis, includes a stator, a low-pressure compressor shaft, a low-pressure compressor comprising a rotor comprising a drum rotatably coupled to the shaft of the low-pressure compressor, and a fan comprising a disk rotatably coupled to the shaft of the low-pressure compressor. The drum has a radially internal part rotatably coupled to the shaft of the low-pressure compressor and a radially external part fixed to the radially internal part by means of detachable fixing means. A first axial retention means is configured to axially and detachably retain the disk of the fan relative to the shaft of the low-pressure compressor. A second axial retention means is configured to axially and detachably retain the radially internal part of the drum relative to the shaft of the low-pressure compressor.

Assembly for a turbine engine

A turbomachine assembly includes a casing, first and second rotors, and a damper. The first rotor includes a disk and blades and is movable in rotation relative to the casing. The second rotor is movable relative to the casing around a longitudinal axis. The damper damps a movement of the first rotor relative to the second rotor. The damper includes first to third parts. The first part bears on the first rotor in a first area extending over a first angular sector around the longitudinal axis and applies a first centrifugal force on the first rotor. The second part bears on the first rotor in a second area that is smaller than the first angular sector and extends over a second angular sector around the longitudinal axis. The third part bears on the second rotor and applies a second centrifugal force on the second rotor.

Assembly for turbomachine

The present invention relates to an assembly for a turbomachine, comprising: a first rotor; a second rotor, and a damper () configured to damp a displacement of the first rotor relative to the second rotor, the damper comprising: a first portion () bearing against the first rotor and having a first thickness, a second portion () bearing against the second rotor and having a second radial thickness, and a third portion () connecting the first portion () to the second portion () and having a third radial thickness, wherein the third radial thickness is greater than at least one of the first radial thickness and the second radial thickness.

Assembly for a turbomachine

A sub-assembly of a turbine engine including a shaft, a bearing for guiding an axial end of the shaft, a nut which is screw-connected to the end of the shaft and a member for blocking the rotation of the nut in relation to the end of the shaft, wherein the member for blocking the nut includes a first section bearing a plurality of flexible tabs, one end of each tab of which cooperates with a radially inner annular wall of the end of the shaft and includes a second section which cooperates with the nut, characterised in that the second section of the blocking member is screw-connected to the nut and the features of the thread between the blocking member and the nut are different from the features of the thread between the nut and the end of the shaft.

Sub-assembly for mounting a guide bearing of a compressor shaft

The present invention relates to a turbomachine assembly, comprising: a casing (), a first rotor () which is movable in rotation with respect to the casing () about a longitudinal axis (X-X), and comprising: *a disk (), and *a plurality of blades () capable of flapping with respect to the disk () during a rotation of the first rotor () with respect to the casing (), a second rotor () which is movable in rotation with respect to the casing () about the longitudinal axis (X-X), and a damper () which is configured to damp a displacement of the first rotor () with respect to the second rotor () in a plane orthogonal to the longitudinal axis (X-X), the displacement being caused by a flapping of at least one blade () among the plurality of blades (), the damper () comprising: o a first bearing part (): *bearing against the first rotor (), and *being configured to apply a first centrifugal force (C) to the first rotor (), o a second bearing part (): *bearing against the second rotor (), and *being configured to apply a second centrifugal force (C) on the second rotor (), and o a linking part (): *connecting the first bearing part () to the second bearing part (), and being thinned relative to the first bearing part () and the second bearing part (), and o a flyweight () which is fixedly mounted on the damper ().

Turbomachine assembly having a damper

The invention relates to a bladed disk () of a fan, comprising: a hub () comprising an outer radial platform () designed so as to define an inner gas flow stream in the turbomachine, a plurality of blades () comprising a root () connected to the platform (), a leading edge () and a trailing edge (), a groove formed in the platform () around part of the root () of each blade () in an area adjacent to the leading edge () and/or the trailing edge (), and a joint () placed in the groove () in such a way that it extends in the extension of the radially outer face () of the platform () in order to ensure a continuity of the inner flow stream.

Bladed disk flexible in the lower part of the blades

The invention relates to an assembly () for a turbomachine comprising: characterized in that the damping device () is annular while extending circumferentially around the turbomachine longitudinal axis (X-X) and in that the damping device () comprises a first radial external surface () supported with friction against the first module () as well as a second radial external surface () supported with friction against the second module (), so as to couple the modules () in order to damp their respective vibrational movements during operation.

Damping device

A turbomachine assembly is provided. The assembly includes: a first rotor module including a first blade, a second rotor module, connected to the first rotor module, and including a second blade of smaller length than the first blade, and a damping device including a plurality of first radial external surfaces supported with friction against the first module. The damping device is stepped, and includes a second radial external surface supported with friction against the second module, so as to couple the modules for the purpose of damping their respective vibrational movements during operation.

An assembly for a turbomachine including a first rotor module () with a first blade (), and a second rotor module (), connected to the first rotor module (). The second rotor module includes a second blade with a smaller length than the first blade (). A damping device () is attached to the second rotor module () and includes a radial external surface () supported with friction against the first module (), so as to couple the modules () for the purpose of damping their respective vibrational movements during operation.

A turbomachine stator element extends around a longitudinal axis and includes a first stator vane and a second stator vane circumferentially adjacent to the first stator vane. Each of the first and second stator vanes include a platform and a blade extending radially from the platform. The stator element also comprising at least one inter-platform seal, arranged between the platform of the first stator vane and the platform of the second stator vane. The inter-platform seal has a flat support provided with an upper surface on which there extends a fin.

Turbomachine stator element

An air bleed device for an aircraft engine, including a frame and a flap able to rotate about an axis in relation to the frame, the device further including a return system configured to bias the flap in a determined position about the axis and including a torsion spring, a first end of which is connected to the flap and a second end of which is connected to the frame. The second end is connected to the frame by adjusting the preload of the spring by screwing when the flap is in the determined position.

Spring preload adjustment device for an aircraft engine air bleed flap

The invention concerns a part of a turbomachine, including an element having a first aerodynamic surface including a counterbore at the bottom of which is provided a mounting hole of a fastening screw of the part, and a washer configured to be accommodate into the counterbore and intended to serve as a support for a head of the fastening screw, wherein the washer has an asymmetry of revolution about a screwing axis and is engaged by shape complementarity in the counterbore, and in that the washer includes a second aerodynamic surface extending in the continuity of the first surface.

Part of a turbomachine comprising a washer cooperating with a counterbore

The invention relates to a balancing system of an aircraft turbomachine comprising a first annular row of first mounting ports for mounting balancing members, and a second annular row of second mounting ports for mounting balancing members which is axially offset from the first annular row, the number and angular positions of the first mounting ports being identical to the number and angular positions of the second mounting ports.

Balancing system for an aircraft turbomachine

The invention relates to a turbomachine assembly () comprising:

A vaned ring for a turbomachine stator includes an outer shell, a vane having a vane head, and two platforms arranged circumferentially on either side of the vane head, and fixed on a radially inner face of the outer shell by detachable fasteners. The vane head has first conical seatings bearing on respective second conical seatings of the two platforms so as to prevent a displacement of the vane radially inwards and along the circumferential direction. The vaned ring includes a frangible pin including a base mounted on the outer shell and a head projecting radially inwards with respect to the outer shell and having a head surface forming, vis-&#xe0;-vis a top surface of the vane head, a stop opposing a displacement of the vane radially outwards.

Growing community of inventors

Moissy-Cramayel, France

Jean-Marc Claude Perrollaz