Safran Aircraft Engines

Laurent Paul François Perrot

Christophe Paul Jacquemard

Nicolas Xavier Trappier

Stéphane Pierre Guillaume Blanchard

Didier Gabriel Bertrand Desombre

François Marie Paul Marlin

Helene Myriam Condat

An aircraft propulsion assembly including a fan shaft which is connected to a turbine shaft by means of a reduction gear. The guiding of the fan shaft is carried out by a first bearing including cylindrical rollers and a second beating including two rows of balls with oblique contact.

Turbomachine fan assembly comprising a roller bearing and a double-row ball bearing with oblique contact

A turbomachine includes a low-pressure shaft that drives a fan shaft in rotation by a coupling assembly including a first shaft on which are formed plural first axial grooves, a second shaft on which are formed plural second axial grooves, and a coupling device including rolling elements and an annular cage positioned between the first shaft and the second shaft. The rolling elements are positioned between one of the first axial grooves and one of the second axial grooves to couple in rotation the first and the second shaft. Each first and second groove has a first and a second substantially planar surface inclined with respect to one another and extending along the axis.

Torque transmission device with reduced friction

Growing community of inventors

Moissy-Cramayel, France

Laurent Paul François Perrot