| 摘要 |
PROBLEM TO BE SOLVED: To provide a nozzle having a replaceable throat nozzle capable of using the nozzle at a low cost for a far longer period. SOLUTION: The subject throat insert has an outlet end portion 60 and a first end portion 53 at the opposite side, a supersonic nozzle part 54 having an inflation area 61 adjacent to the outlet end portion 60, an inlet conical part 56 and a throat part 58 and is provided with a removable throat insert part 55. The removable throat insert part 55 is stored in the first end portion 53 under the condition of the throat part 58 being arranged adjacently to the inflation area 61. COPYRIGHT: (C)2006,JPO&NCIPI
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