This paper summarizes the results of a 3 year research program to advance the state-of-the-art in helicopter free-wheel units (overrunning clutches) by permitting operation at 20,000 rpm. By designing the free-wheel unit to operate at engine input speed instead of at the speed of the 2nd reduction where it is usually located, the torque, and hence size and weight of the unit, will be reduced. High-speed designs, test results, and application of the designs to the UH-60A BLACK HAWK are presented for spring, sprag, and ramp roller types of overrunning clutches.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Advanced Overrunning Clutch Technology


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    Aerospace Meeting ; 1978



    Publication date :

    1978-02-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English





    Advanced overrunning clutch technology

    Kish, J.G. | Tema Archive | 1978




    Bi-directional overrunning clutch

    THORNTON KEN / KENT DENNIS / SHELTON CHRIS et al. | European Patent Office | 2018

    Free access