| 摘要 |
1. A decoy missile for high speed air travel comprising the improvement of a casing open at one end, a substantially closed air receiving chamber in said casing, conduit means supplying combustion air under pressure from a remote source connected to said closed chamber, hollow flameholder means mounted in said closed chamber to admit air under pressure to the hollow interior, said flameholder means having an open end adjacent said one end of the casing, fuel supply spray means connected to said flameholder means to supply fuel thereto under pressure, igniter means to initiate combustion of the fuel sprayed into the air within the hollow interior of said flameholder means, and a heat radiating foraminous member carried by said casing over the open ends of said casing and flameholder means and exposed for viewing in the high speed air stream, said foraminous member forming with the hollow interior of said flameholder means an enclosed combustion space and being composed of a finely perforated sintered porous material through which the hot combustion gases pass and which imposes a substantial pressure drop between the combustion space and the exterior surface of said member to create a layer of hot gases on the exterior surfaces which is relatively stable in the high velocity air flow about said casing and over the exterior of said member, the products of combustion passing through said foraminous member acting to soak said member and raise the temperature thereof to infrared emission temperature.
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