The patent describes a method and apparatus for improving operating efficiency over broad ranges of flight conditions and for reducing jet engine noise output in takeoff and landing by controlling the airflow entering and exiting the engines. A turbojet engine apparatus is described which operates efficiently at both subsonic and supersonic speeds and a method is described which enables a turbofan with an associated satellite turbojet or turbofan to operate more efficiently at both subsonic and supersonic speeds. In both cases, takeoff and landing noise is reduced substantially. The apparatus consists essentially of arranging for two separate portions of an engine to act upon one airstream or, alternately, to operate on independent airstreams.


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    Title :

    Dual Cycle Aircraft Turbine Engine


    Contributors:

    Publication date :

    1973


    Size :

    8 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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