| 摘要 |
<p>1,012,780. Deflecting propulsion jets on aircraft. GENERAL ELECTRIC CO. Nov. 27, 1963 [Nov. 29, 1962],. No. 46848/63. Heading B7G. An aircraft 10 has a gas-turbine engine 11 discharging into a bifurcated chamber 12 which extends into a jet pipe 15 and a downwardly and rearwardly directed nozzle 13. The chamber 12 carries a pair of gas diverter valves 18 and, in the outlet of nozzle 13 a row of pivoted vanes 20 mounted for rotation on a shaft 22. The end vanes 24 have a longer chord than the intermediate vanes and their pivots 27 are so arranged that when deflected the leading portion of one vane extends within the nozzle 13 as shown in Fig. 4 in such a way that the flow area at d compensates for the reduction in area from b to a between the other vanes, and the leading edge of the other vane extends outside the nozzle as shown in Fig. 5 and wherein the throat of the gap between vanes 24 and 25 is arranged to be at 32 so that choking takes place at this point in preference to position e.</p> |
