A failsafe multimode clutch assembly positioned in a powertrain of a rotorcraft. The clutch assembly includes a freewheeling having a driving mode in which torque applied to the input race is transferred to the output race and an overrunning mode in which torque applied to the output race is not transferred to the input race. A bypass assembly has an engaged position that couples the input and output races of the freewheeling unit. An actuator assembly uses pressurized lubricating oil to shift the bypass assembly between the engaged position and a disengaged position. A lock assembly enables and disables actuation of the bypass assembly. In the disengaged position, the overrunning mode of the freewheeling unit enables a unidirectional torque transfer mode of the clutch assembly. In the engaged position, the overrunning mode of the freewheeling unit is disabled such that the clutch assembly is configured for bidirectional torque transfer.


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    Title :

    Failsafe multimode clutch assemblies for rotorcraft


    Contributors:

    Publication date :

    2023-07-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    F16D COUPLINGS FOR TRANSMITTING ROTATION , Nicht schaltbare Kupplungen / B64C AEROPLANES , Flugzeuge / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT



    Failsafe Multimode Clutch Assemblies for Rotorcraft

    OLSON ERIC STEPHEN / PRATER DAVID ANDREW | European Patent Office | 2021

    Free access

    Failsafe multimode clutch assemblies for rotorcraft

    OLSON ERIC STEPHEN | European Patent Office | 2021

    Free access

    Failsafe multimode clutch assemblies for rotorcraft

    OLSON ERIC STEPHEN / PRATER DAVID ANDREW | European Patent Office | 2021

    Free access

    Failsafe Multimode Clutch Assemblies for Rotorcraft

    OLSON ERIC STEPHEN | European Patent Office | 2021

    Free access

    Failsafe Multimode Clutch Assemblies for Rotorcraft

    OLSON ERIC STEPHEN / PRATER DAVID ANDREW | European Patent Office | 2022

    Free access