A method and portable apparatus for servicing a shock absorber on a landing gear assembly of an aircraft in a weight-on-wheels state is disclosed. The shock absorber includes at least one chamber containing both hydraulic fluid and a gas in fluid communication with each other. The apparatus includes a source of gas and a source of hydraulic fluid. The amount of hydraulic fluid in the chamber is corrected, preferably such that the chamber is then filled with a known amount of degassed hydraulic fluid. A pre-set mass of gas is then delivered into the chamber under the control of a gas delivery system of the portable apparatus. More accurate servicing of a shock absorber may thus be provided since account is additionally taken of gas dissolved in hydraulic fluid. By delivering a pre-set mass of gas into the chamber, there is no need to rely on a measure of gas pressure or H-dimension (h) when servicing the shock absorber.


    Access

    Download


    Export, share and cite



    Title :

    SERVICING OF LANDING GEAR SHOCK ABSORBERS


    Contributors:

    Publication date :

    2019-10-31


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B64F GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT , Boden- oder Flugzeugträgerdeckeinrichtungen besonders ausgebildet für die Verwendung in Verbindung mit Luftfahrzeugen / B64C AEROPLANES , Flugzeuge / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / F16F SPRINGS , Federn / G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES , Prüfen der statischen oder dynamischen Massenverteilung rotierender Teile von Maschinen oder Konstruktionen



    SERVICING OF LANDING GEAR SHOCK ABSORBERS

    POUNTNEY OLIVER / SHEPHERD ALAN | European Patent Office | 2017

    Free access

    Servicing of landing gear shock absorbers

    POUNTNEY OLIVER / SHEPHERD ALAN | European Patent Office | 2022

    Free access

    Servicing of landing gear shock absorbers

    POUNTNEY OLIVER / SHEPHERD ALAN | European Patent Office | 2019

    Free access

    SERVICING OF LANDING GEAR SHOCK ABSORBERS

    POUNTNEY OLIVER / SHEPHERD ALAN | European Patent Office | 2023

    Free access

    Servicing of landing gear shock absorbers

    OLIVER POUNTNEY / ALAN SHEPHERD | European Patent Office | 2017

    Free access