公开(公告)号：CA2537643A1

公开(公告)日：2006-10-22

申请号：CA2537643

申请日：2006-02-22

Applicant: UNITED TECHNOLOGIES CORP

Inventor： COSTA MARK W ,  BROWN CHARLES W ,  FREILER CHRIS

IPC: F01D25/24 ,  F02C7/045 ,  F02K99/00 ,  G10K11/16

Abstract: A duct liner assembly includes a noise attenuation layer for absorbing noi se energy that is covered by a face sheet. The face sheet includes a seam that is covered by an acoustically active splice. The acoustically active splice includes a plurality of acoustic regions that provide for communication of noise energy to the noise attenuation layer to minimize creation of acoustically dead areas.