Safran Aircraft Engines

Pierrick Raphael Americo Bauduin

Olivier Renon

Stéphane Pierre Guillaume Blanchard

Bertrand Guillaume Robin Pellaton

Patrick Sultana

Florence Irène Noëlle Leutard

Youki Olivier Ito-Lardeau

Stephane Pierre Guillaume Blanchard

A tubular shaft () of a turbomachine, including at the inner periphery of same, a bath (), substantially perpendicular to splines (), the bath () includes cavities () distributed over a circumference centred on an axis of rotation (LL) of the shaft ().

Turbomachine shaft

An extraction sleeve for extracting two rotationally symmetrical parts that are joined together by interference fit, the extraction sleeve including: a head having a conical part; a cylindrical body, the internal part of the cylindrical body having a screw thread suitable for the screwing of an extraction screw; the conical part of the head of the extraction sleeve forming a friction component suitable for coming into contact with one of the rotationally symmetrical parts, the friction component being designed so as to determine a limit slipping torque greater than the friction torque generated at the screw thread of the sleeve by screwing of the extraction screw.

Extraction sleeve

Growing community of inventors

Moissy-Cramayel, France

Pierrick Raphael Americo Bauduin