An unducted fan having variable pitch blades for an aircraft or wind propulsion system is described. The fan includes a hub provided with housings pivotally receiving vanes about radial axes, and an outer casing of the hub into which circular openings of the housings open. Each vane includes a root which is rotatably mounted in the associated housing, a radially oriented blade and a disc-shaped platform extending from the blade to an edge of the circular opening. The blade includes at least one skin which includes a free lower edge facing the side of the root, wherein the platform is attached to the free lower edge of the skin.
UNDUCTED FAN HAVING VARIABLE PITCH BLADES COMPRISING REDUCED DISTURBANCE PLATFORMS
02.11.2023
Patent
Elektronische Ressource
Englisch
Unducted fan having variable pitch blades comprising reduced disturbance platforms
Europäisches Patentamt | 2024
|Unducted propeller with variable pitch blades including platforms with reduced perturbation
Europäisches Patentamt | 2023
|Unducted turbine engine comprising stator blades having different chords
Europäisches Patentamt | 2025
|Lever arm device for controlling the pitch of fan blades of a turbine engine having an unducted fan
Europäisches Patentamt | 2019
|