公开(公告)号：US5768778A

公开(公告)日：1998-06-23

申请号：US696798

申请日：1996-08-14

Applicant: Robert Elon Anderson ,  Charles A. Parente

Inventor： Robert Elon Anderson ,  Charles A. Parente

IPC: F02C7/00 ,  F02C7/04 ,  F02C7/045 ,  F02K1/82 ,  F02K1/00

CPC classification number: B64D33/02 ,  F02C7/04 ,  F02C7/045 ,  F02K1/827 ,  B64D2033/0206 ,  F05D2260/96 ,  Y02T50/672 ,  Y10T29/49231 ,  Y10T29/49885

Abstract: An acoustic liner jet engine inlet barrel is formed from a perforated permeable skin, a honeycomb core, and a solid facesheet, each of which is formed in a one-piece configuration such that at most only a narrow single fore-to-aft splice, or no spice at all, is present in the finished product. The acoustic modal content remains unaffected, thus preserving a high degree of liner effectiveness, increasing the total active acoustic area of the barrel while decreasing its weight, and increasing its durability.

Abstract translation: 声衬衬喷射发动机入口筒由穿孔的可渗透的皮肤，蜂窝芯和实心面板形成，每个面都以单件构造形成，使得至多只有窄的单个前后接头， 或根本没有香料，都存在于成品中。 声学模态含量保持不受影响，从而保持高度的衬垫效率，增加了筒的总有效声学面积同时减小了其重量，并提高了其耐久性。