US Patent 10899432 Fan module with variable pitch blades

Fan module with variable-pitch blades for a propulsion system that includes:a rotor supporting the blades, and including an internal shaft and an external shroud, defining between them a space;a pitch control device (22) of the blades that includes a load transfer bearing;a feathering device of the blades;said feathering device includes at least one lever that is articulated around a fixed axis (A) in relation to the rotor, where said lever features a first end located outside said space and a second end located inside said space, and where a flyweight is fastened to the first end and the second end is coupled to said bearing.