FLAT NOZZLE OF JET TURBINE ENGINE Russian patent published in 2012 - IPC F02K1/12 

FIELD: engines and pumps.

SUBSTANCE: flat nozzle of jet turbine engine includes body, subsonic doors hinged to it, supersonic doors, external doors, brackets and hydraulic cylinders connected to levers rigidly attached to subsonic doors, which are installed outside side walls of the nozzle body. Supersonic doors are hinged to subsonic doors. One end of external doors is attached to the housing and the other end is attached to supersonic doors. Brackets are arranged on longitudinal axes of side walls of nozzle body on their external side and hinged to subsonic door turning hydraulic cylinders. Each bracket is provided on its front and rear ends with rollers taken to the guides rigidly attached to the body and with two transverse eye lugs connected by means of rods to levers of subsonic doors. To each lever there hinged is additional rod that is equipped on the other end with rollers taken to the guides provided on external doors. On side walls of nozzle body there installed are additional hydraulic cylinders the stocks of which are hinged to additional rods for turning of external doors.

EFFECT: invention allows improving operating reliability and efficiency coefficient of jet turbine engine.

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