Integrated axial symmetry thrust vectoring nozzle with expansion tail skirt

Abstract

The invention aims to provide an integrated axial symmetry thrust vectoring nozzle with an expansion tail skirt, and belongs to the field of cross-media. Comprising a ramjet nozzle, a micro gas turbine nozzle and an expansion tail skirt structure, the ramjet nozzle is arranged outside the micro gas turbine nozzle, and the expansion tail skirt structure is installed outside the ramjet nozzle. The underwater direction adjusting strategy of a conventional cross-medium aircraft mainly changes the rotating speed difference of propellers on the two sides, and due to the brand new design of the axial symmetry thrust vectoring nozzle of the annular ramjet, underwater direction adjustment does not need to depend on propellers any more, and adjustment can be achieved only by controlling the nozzle to be closed. And the spray pipe with the variable outlet area can be better matched with the working state of the engine, and the maximum thrust is obtained. The telescopic thrust vectoring nozzle of the micro gas turbine not only can adjust the axial direction of air flow at an outlet, but also can change the area of the outlet. And meanwhile, the telescopic design adapts to a cross-medium motion state, and damage caused by sea wave impact is avoided.

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