| 摘要 |
PROBLEM TO BE SOLVED: To make air flow without generating deviation not to generate voltex in the upstream in the vicinity of a tested jet engine in an engine room, when the outside air of high flow velocity is taken in from an intake noise-suppressing chamber to conduct a test run. SOLUTION: In this wind shield body having an opening in its bottom and formed box-likely, arranged concentrically to the intake noise-suppressing chamber 11 with clearances with respect to the chamber 11 in the condition where an intake port gets into a boxlike hollow part from the opening in an upper part of the noise-suppressing chamber 11 of which the upper end is formed into the intake port, and constituted to make the outside air taken from the clearances into the chamber 11, the opening is formed to close the clearances Ga,Ga,Gb,Gb with respect to the noise-suppressing chamber 11 in portions corresponding to four corners of the chamber 11 in top view. |
