An aircraft engine generator disconnect device comprises a drive transfer means, such as dog clutch (380, fig 3) having a connected configuration and a disconnected configuration. The clutch (380) is connected to a piston 115 of a pneumatically actuated disconnect mechanism 110 which is connected to a gas storage means 120 via a pipe 130 and gas release means 140 having a puncture device 145 that when activated punctures, for example, frangible portion 123. When a generator malfunction occurs an actuation plunger (260) is released and strikes the puncture device 145 thereby perforating the frangible portion 123 which releases gas, e.g. nitrogen, from the gas storage means 120 causing the piston 115 to move the clutch (380) to the disconnected configuration so that a generator input shaft (387) is no longer connected to a generator rotor (390). The actuation plunger (260) is spring loaded and together with the puncture device 145 form a stored potential energy device held in a primed condition by a trigger (270) comprising an electromagnetic device or a spring assisted lever.


    Access

    Download


    Export, share and cite



    Title :

    Aircraft engine generator disconnect device


    Publication date :

    2018-01-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English



    Aircraft engine generator disconnect device

    European Patent Office | 2018

    Free access

    Aircraft engine generator disconnect drive

    European Patent Office | 2018

    Free access

    Hybrid powertrain engine disconnect device

    LAHR DEREK F / SAMIE FARZAD | European Patent Office | 2020

    Free access

    Generator shaft mechanical disconnect

    European Patent Office | 2020

    Free access

    HYBRID POWERTRAIN ENGINE DISCONNECT DEVICE

    LAHR DEREK F / SAMIE FARZAD | European Patent Office | 2019

    Free access