A rotorcraft has a low density altitude flight mode and a high density altitude flight mode. The rotorcraft includes a turboshaft engine forming a gas path in sequence through an air inlet section, a compressor section, a combustor section, a turbine section and an exhaust section. A drive system is coupled to the engine and is operable responsive to rotation of at least a portion of the turbine section. A rotor is coupled to the drive system and is operable to receive torque and rotational energy therefrom. A fuel injection system supplies fuel to the combustor section. An oxidizer injection system and a coolant injection system are used to selectively inject an oxidizer and a coolant into the gas path when it is desired to operate the rotorcraft in the high density altitude flight mode, thereby increasing the altitude density ceiling of the rotorcraft for maneuvers including takeoffs and landings.


    Access

    Download


    Export, share and cite



    Title :

    Rotorcraft having increased altitude density ceiling


    Contributors:

    Publication date :

    2019-12-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / B64C AEROPLANES , Flugzeuge / F02C Gasturbinenanlagen , GAS-TURBINE PLANTS



    Rotorcraft having Increased Altitude Density Ceiling

    DAILEY ZACHARY EDWIN / STAMPS FRANK BRADLEY / PERYEA MARTIN | European Patent Office | 2018

    Free access

    ROTORCRAFT OPERATIONAL ALTITUDE AND AIRSPEED

    EADIE WILLIAM J / BOYLE PATRICK | European Patent Office | 2017

    Free access

    ROTORCRAFT OPERATIONAL ALTITUDE AND AIRSPEED

    EADIE WILLIAM J / BOYLE PATRICK | European Patent Office | 2016

    Free access

    Vision based techniques for rotorcraft low altitude flight

    Banavar Sridhar / Suorsa, R. / Smith, P. | Tema Archive | 1991


    Computer vision techniques for rotorcraft low-altitude flight

    Sridhar, B. / Cheng, V.H.L. | Tema Archive | 1988