ROTARY AXISYMMETRIC TURBINE JET NOZZLE Russian patent published in 2020 - IPC F02K1/82 

FIELD: aviation.

SUBSTANCE: invention relates to aircraft engine building, particularly, to design of rotary axisymmetric nozzles of turbojet engines (TJE). In rotary axisymmetric nozzle of jet turbine engine containing fixed housing with screen attached to its inner surface, and movable housing with spherical screen attached to its inner surface and installed between fixed and movable housings, with formation between screens and housings channels for passage of cooling air, wherein the spherical screen is made in the form of sections arranged in circumferential direction, wherein on the external surface of each section of the spherical screen, in two belts, there are paired suspensions with holes in the shelves, into which cylindrical fingers are inserted, rigidly attached to the movable housing, according to the present invention, on the outer surface of each section of the spherical screen between the belts with the suspensions, at least one radial support element is rigidly fixed, the working surface of which is conjugated with the inner surface of the movable housing.

EFFECT: technical result is improvement of reliability of rotary axisymmetric nozzle during TJE operation.

3 cl, 3 dwg