Double-layer wall cooling structure with transverse corrugated impact pore plate for vectoring exhaust nozzle
A vector nozzle and cooling structure technology, applied in jet propulsion devices, machines/engines, etc., can solve the problems of increasing the impact distance and uneven thermal stress of the corrugated heat shield, so as to increase the flow rate and reduce the flow rate. resistance, reducing the effect of momentum loss
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[0020] See figure 1 — Picture 8 , The present invention proposes a new type of double-walled cooling structure 8 with transverse corrugated impact orifice for nozzles, as attached figure 2 Shown. This structure can solve the contradiction between the two methods of reducing the impact distance in order to enhance heat exchange, but increasing the impact distance in order to reduce the flow resistance, and solve the problem of uneven thermal stress of the corrugated heat shield. The double-wall cooling structure 8 is composed of a two-dimensional transverse corrugated impact plate 2 and a flat air film orifice plate 1. The gas side film orifice plate 1 constitutes the inner wall of the vector nozzle barrel, and the inner side is the vector nozzle main gas duct 6; the cold air side corrugated impingement orifice plate 2 and the outer wall 3 together form the cold air duct 7; cooling from the compressor The air flow B flows axially backward in the cold air duct 7. A part of the...
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