The invention relates to a hydraulic actuator comprising a cylinder (1) in which a piston (2) secured to a rod (4) is mounted so as to slide in a sealed manner in order to delimit in the cylinder a hydraulic extension chamber (5) and a hydraulic retraction chamber (6) that are connected to respective ports, the hydraulic actuator comprising means for slowing the piston when the piston approaches a retracted position. According to the invention, the slowing means comprise first and second hydraulic lines (7, 8) extending between the extension port and the extension chamber, the first hydraulic line comprising a seat (13) while the piston bears a retractable finger (10) having an end (14) that comes to bear against the seat in order to close the first hydraulic line (7) when the piston approaches the retracted position, such that only the second hydraulic line (8) remains open while the piston completes its travel towards the retracted position.Landing gear and aircraft comprising such an actuator.


    Access

    Download


    Export, share and cite



    Title :

    VERIN HYDRAULIQUE EQUIPE D'UN DISPOSITIF DE RALENTISSEMENT DE FIN DE COURSE


    Additional title:

    HYDRAULIC CYLINDER PROVIDED WITH A DEVICE FOR SLOWING END-OF-TRAVEL
    HYDRAULIKZYLINDER, DER MIT EINER VORRICHTUNG ZUR VERLANGSAMUNG AM ENDANSCHLAG AUSGESTATTET IST


    Contributors:

    Publication date :

    2023-09-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    French


    Classification :

    IPC:    F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein / B64C AEROPLANES , Flugzeuge



    Vérin hydraulique equipé d’un dispositif de ralentissement de fin de course

    KAMIS JEAN-BAPTISTE / ROGER JEAN-CHARLES | European Patent Office | 2021

    Free access

    DISPOSITIF POUR LA COMMANDE HYDRAULIQUE OPTIMISEE EN ENERGIE D'UN VERIN A DOUBLE EFFET

    HAHN PHILIPP / GLINIORZ VOLKER / BONNETOT GUILLAUME | European Patent Office | 2020

    Free access

    DISPOSITIF INDICATEUR DE RALENTISSEMENT IMMINENT D'UN VEHICULE

    BANGRATZ CHRISTIAN JACQUES GEORGES | European Patent Office | 2017

    Free access


    VERIN A COURSE DECLENCHEE MUNI D'UN DISPOSITIF D'EVACUATION DES GAZ

    MARLIN FREDERIC / NADEAU JEAN-PAUL | European Patent Office | 2018

    Free access