TURBOJET ENGINE FLAT NOZZLE Russian patent published in 2019 - IPC F02K1/12 

FIELD: aviation.

SUBSTANCE: invention relates to the field aviation engine-building, namely to design of the turbojet engines flat nozzles. Flat nozzle comprises series-mounted and hingedly connected to each other housing, subsonic and supersonic flaps, as well as external flaps connected to the housing and supersonic flaps, side walls connected to the housing. Section of any of supersonic flaps in place of its connection with subsonic door in cross section is rectangular, smoothly changing in direction of cut of flat nozzle into section made in transverse section of angular shape, formed by two plates connected at ends at blunt angle, which vertex is directed from longitudinal axis of turbojet engine. Section of any of the external flaps located directly above the corresponding supersonic flap repeats the geometric shape of the latter.

EFFECT: invention allows reducing thrust losses and improving the reliability of a flat nozzle of a turbojet engine.

3 cl, 3 dwg