| 摘要 |
PROBLEM TO BE SOLVED: To reliably detect leakage even at a small flow rate, which corresponds to a defect of a pipe at the initial stage, by using a linear sensor without requiring an expensive device.SOLUTION: A piping structure 10 included by an aircraft includes: a pipe 11 through which bleed air at higher temperature than the temperature of a surrounding atmosphere flows; a cover 13 which covers an outer peripheral part of the pipe 11 and which defines a plurality of vent holes 14 allowing the bleed air leaking from the pipe 11 to flow out; and a linear sensor 31 which passes through a position corresponding to each of the plurality of vent holes 14 and which responds to the temperature or concentration of air outside the cover 13. The sensor 31 includes ranges R1, R2, R3 located above the positions corresponding to the vent holes 14.SELECTED DRAWING: Figure 3 |
