AIRCRAFT TURBINE ENGINE COMPRISING VARIABLE PITCH PROPELLER BLADES

• Main Authors: JOUDON, Vincent, COURTIER, Vivien Mickaël, JABLONSKI, Laurent, SERVANT, Régis Eugène Henri, COTTET, Clément, LANGLOIS, Arnaud
• Format: Patent
• Language: English
• Published: 14.09.2023
• Subjects: AEROPLANES; AIRCRAFT; AVIATION; BLASTING; COSMONAUTICS; ENGINE PLANTS IN GENERAL; HEATING; HELICOPTERS; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES; PERFORMING OPERATIONS; STEAM ENGINES; TRANSPORTING; WEAPONS

An assembly including a propeller blade and a pitch adjustment system for setting the pitch of the blade. A root of the blade has a bulb and the pitch adjustment system for setting the pitch of the blade includes a cup having an upper opening; a retaining ring, which extends around the bulb, is restricted at least in terms of axial movement towards the opening relative to the cup and has a bearing face to inhibit axial movement of the root towards the opening The pitch adjustment system being further includes a lower seat for the root to engage the cup, the seat and/or the retaining ring being mounted so as to be capable of axial translation relative to the cup by at least one clamping mechanism.