Safran Helicopter Engines

Safran Power Units

Safran

Fabien Mercier-calvairac

Patrick Marconi

Romain Jean Gilbert Thiriet

David Bernard Martin Lemay

Denis Antoine Julien Real

Eric Pierre Seinturier

Quentin Vincenzotto

Jean-Baptiste Jarin

Antoine Pierre Emmanuel Ferrand

Stéphane Albert André Douillard

A device for controlling a power-transfer system for the transfer of power between a high-pressure shaft and a low-pressure shaft of a turbomachine of an aircraft, including a fatigue analysis module analysing the fatigue of the turboma-chine and designed to determine, from between two indicators (D, D) respectively measuring two fatigues of the turbomachine, which is the one that is the most advanced, which is to say which is the one at risk of being first to reach a respective upper limit (Dmax, Dmax); and—a control module controlling the power transfer system and designed to slow the fatigue measured by the more advanced indicator (D, D).

Transfer of power between the high-pressure shaft and the low-pressure shaft of a turbomachine

A propulsion assembly for aircraft includes a single-shaft engine turbomachine including a combustion chamber and a rotatably mounted shaft that turns at a turbomachine rating; an electrical generator coupled to the shaft; and a control system. The control system includes a fuel pump that brings fuel into the combustion chamber at a fuel flow rate which is a direct function of an ambient pressure and of the turbomachine rating, and power electronics that are coupled to the electrical generator and that control an electrical power drawn off the electrical generator so as to attain a target turbomachine rating.

Turbogenerator with simplified control system for aircraft

Growing community of inventors

Moissy-Cramayel, France

Fabien Mercier-calvairac