Snecma

Safran Aircraft Engines

Sébastien Tajan

Christophe Paul Jacquemard

Adrien Jacques Philippe Fabre

Dominik Igel

Adrien Philippe Fabre

Adrien Laurenceau

Sarah Chartier

The main purpose of the invention is a propeller () for a turbomachine () comprising a plurality of blades () and a blade support ring () fitted with housings () each of which holding a pivot () supporting the root () of one of said blades (), characterized in that at least one of the pivots () is associated with at least one dynamic scoop (), capable of moving between distinct positions, an open position in which a cooling airflow (F) can be captured, and a closed position as a function of the orientation of the corresponding blade.

Propeller comprising a moveable dynamic scoop

A control system includes a power actuator coaxial with the axis of rotation of the propeller, and a transmission device connecting the power actuator to pivots, of the blades to be controlled, arranged substantially radially with respect to the axis of rotation. The actuator is a rotary jack whose mobile part rotates about the axis of rotation and is connected to the transmission device by a mobile mechanical connection which transforms the rotation imparted by the mobile part of the jack about the axis of rotation into a rotation of the blades about the axes of the pivots which are perpendicular to the axis of rotation.

System for controlling the pitch of the propeller blades of a turbomachine, and a turbomachine with a propeller for an aircraft with such a system

Growing community of inventors

Sucy en Brie, France

Sébastien Tajan