An aircraft fuel system comprising: a fuel tank; an outlet (50, fig 7) in the fuel tank for feeding liquid fuel out of the fuel tank; and an expandable gas-container in the fuel tank. The gas-container encloses a mass of gas which is sealed within the gas-container; the gas-container is exposed to ambient pressure and the weight of the head of fuel above the gas-container. A drop in ambient pressure and the weight of fuel during flight of the aircraft causes the gas-container to expand. The expansion of the gas-container causes it to displace the liquid fuel towards the outlet. The mass of gas is a fixed mass of gas - thus the amount of gas in the gas-container does not change as the gas-container expands and its pressure decreases in inverse proportion to the change of volume. The gas-container may comprise a sealed-bladder 60 and may further be filled with a gas containing substantially no oxygen. Alternatively, the gas-container may comprise a flexible diaphragm (10, fig 1) disposed at least partially between a pair of stringers (3, 4, fig 1) in the fuel tank.


    Access

    Download


    Export, share and cite



    Title :

    Aircraft fuel system


    Contributors:

    Publication date :

    2017-05-31


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT



    Aircraft fuel system and aircraft

    HASHIMOTO JUNICHIRO / KOMODA USHIO | European Patent Office | 2016

    Free access

    AIRCRAFT FUEL SYSTEM

    MADDEN CHRISTOPHER P / BEAVEN DAVID M / BEMMENT CRAIG W et al. | European Patent Office | 2024

    Free access

    AIRCRAFT FUEL SYSTEM

    IVASHIN ALEKSANDR FEDOROVICH / KAGAN VLADIMIR ARTEMOVICH | European Patent Office | 2019

    Free access

    Aircraft fuel system

    JOHN WOOD | European Patent Office | 2017

    Free access