A fan module 1 with variable-pitch blades 5 for a propulsion system 2 includes a rotor 3 supporting the blades, and an internal shaft 10 and an external shroud 11, defining between them a space 14. An upstream axial end 12 of the shaft is connected to an upstream axial end 13 of the shroud. A pitch control device 22 of the blades is located in the space and includes a load transfer bearing (28, fig 2). A blade feathering device 38 includes at least one lever 40 that is articulated around a fixed axis A in relation to the rotor. The lever has a first end (41, fig 7) located outside the space, and a second end (42, fig 7) located inside the space. A flyweight 43 is fastened to the first end, and the second end is coupled to the bearing. The flyweight is capable of moving into a position in which the bearing imposes a feathered position to the blades.


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    Title :

    Fan module with variable-pitch blades



    Publication date :

    2021-10-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    F04D Strömungsarbeitsmaschinen , NON-POSITIVE-DISPLACEMENT PUMPS / B64C AEROPLANES , Flugzeuge



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