A novel approach to optimizing control accuracy of pitch angle of the blades of an airplane propeller or wind turbine rotor by using laminated rubber (elastomeric) bearings in place of rolling element bearings so that the former's smooth torque vs. deflection characteristics minimally influence the balance of passive control torques upon the pitch axis due to calibrated springs and forces resulting from rotation speed and/or aerodynamic drag.


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    Titel :

    Smooth Pitch Control for Propellers and Rotors


    Beteiligte:

    Erscheinungsdatum :

    23.11.2017


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B64C AEROPLANES , Flugzeuge / F03D Windkraftmaschinen , WIND MOTORS



    Smooth pitch control for propellers and rotors

    HINKS WILLIAM L | Europäisches Patentamt | 2019

    Freier Zugriff

    Variable pitch propellers

    Eberhardt, C. | Engineering Index Backfile | 1919


    Controllable-pitch propellers

    Rupp, L.A. | Engineering Index Backfile | 1948


    Variable pitch propellers

    Engineering Index Backfile | 1947


    Controllable pitch propellers

    Webb, J.A. / Waters, W. | Tema Archiv | 1979