| 摘要 |
PCT No. PCT/US82/01816 Sec. 371 Date Dec. 27, 1982 Sec. 102(e) Date Dec. 27, 1982 PCT Filed Dec. 27, 1982 PCT Pub. No. WO84/02507 PCT Pub. Date Jul. 5, 1984.In a jet engine in which the engine cowling includes an inlet cowl and an engine containment case and in which at least a portion of the interior surface of the inlet cowl is covered by an acoustic treatment material, a system for attaching the inlet cowl to the engine containment case icludes an attachment ring that is substantially U-shaped in cross section having a web and first and second legs extending orthogonally from the web. The first leg abuts an engine flange that is a part of the engine containment case. The first leg and engine flange are secured to one another by threaded fasteners. The web is attached to the acoustic treatment material by fasteners that pass through the web and the acoustic treatment material. The acoustic treatment material is effective up to the interface between the inlet cowl and the engine containment case.
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