A linear actuator includes a screw shaft comprising a screw thread and having a longitudinal axis A, a nut movable along the screw shaft from a retracted position to an extended position, and a plurality of rollers movable with the nut. Each roller includes a cylindrical surface configured to roll along one or more flanks of the screw thread, such that rotation of the screw shaft causes the rollers to roll along the flank(s) so that the nut translates in an axial direction along the screw shaft. The screw thread has a variable lead angle. The actuator can be part of a power door opening system of an aircraft.


    Access

    Download


    Export, share and cite



    Title :

    Linear actuator


    Contributors:

    Publication date :

    2023-05-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    F16H Getriebe , GEARING / B64C AEROPLANES , Flugzeuge



    LINEAR ACTUATOR

    OKADA MASAKI / OGASAWARA TAKAYUKI / HYODO HIROAKI | European Patent Office | 2024

    Free access

    LINEAR ACTUATOR

    FORTÉ ALAIN / LAFOREST PIERRE / GOBEIL ALAIN | European Patent Office | 2024

    Free access

    LINEAR ACTUATOR

    FORTÉ ALAIN / LAFOREST PIERRE / GOBEIL ALAIN | European Patent Office | 2022

    Free access

    LINEAR ACTUATOR

    FORTÉ ALAIN / LAFOREST PIERRE / GOBEIL ALAIN | European Patent Office | 2024

    Free access

    LINEAR ACTUATOR

    TOMIOKA KAZUTAKA / YAMAZAKI RYOSUKE | European Patent Office | 2016

    Free access