| 摘要 |
PROBLEM TO BE SOLVED: To provide an airframe launcher by providing a jet channel for passing a rapid, high temperature and high pressure jet. SOLUTION: A truncated conical ejector 11 disposed concentrically with a rapid, high temperature and high pressure jet 14 and disposed at its one end at a gap from an upstream side outer peripheral edge of the jet 14 and radially enlarged from the one end side toward the other end side to surround the outer peripheral edge of the jet 14 is provided at a jet channel for passing the jet 14. Thus external cold air is sucked from a gap formed between one end of the ejector 11 and the upstream side outer peripheral edge of the jet 14 by means of an adjoint flow effect of the jet flowing at a high speed at the jet channel, fed into the ejector 11 mixed with the high temperature and high pressure jet, and expanded. Thus, the jet is lowered at its temperature and pressure, thereby reducing an energy of the jet 14.
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