Systems and methods include providing an aircraft with a fuselage and a wing assembly rotatable relative to the fuselage about a stow axis between a flight position and a stowed position. The aircraft includes an engine reduction gearbox having a retractable driveshaft that selectively engages the mid-wing gearbox via axially translatable motion along a rotation axis when the wing assembly is in the flight position. The mid-wing gearbox includes a plunger seal that is displaced in response to contact with the retractable driveshaft. Displacement of the plunger seal allows lubricant to flow through an inner bore in the retractable driveshaft, across splines of the retractable driveshaft and the mid-wing gearbox, and through lubrication ports in the mid-wing gearbox to lubricate the engine reduction gearbox, splines of the retractable driveshaft and the mid-wing gearbox, and the mid-wing gearbox via a single lubrication system.


    Access

    Download


    Export, share and cite



    Title :

    Plunger seal for driveshaft connection


    Contributors:

    Publication date :

    2023-05-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge / F16C SHAFTS , Wellen / F16D COUPLINGS FOR TRANSMITTING ROTATION , Nicht schaltbare Kupplungen / F16H Getriebe , GEARING / F16J Kolben , PISTONS



    PLUNGER SEAL FOR DRIVESHAFT CONNECTION

    OLSON ERIC STEPHEN / BOCKMILLER DAVID RUSSELL | European Patent Office | 2019

    Free access

    COMPRESSIBLE DRIVESHAFT

    GILLILAND COLTON / MUELLER RUSSELL L | European Patent Office | 2019

    Free access

    DRIVESHAFT TUBE

    TAVENER STUART | European Patent Office | 2018

    Free access

    Plunging assembly for driveshaft and driveshaft including same

    SEO JONG UK / JANG DAL SOO | European Patent Office | 2018

    Free access

    DRIVESHAFT CONTAINMENT APPARATUS

    DUBE GILLES MARC | European Patent Office | 2022

    Free access