公开(公告)号：EP3268550A1

公开(公告)日：2018-01-17

申请号：EP15712471.0

申请日：2015-03-10

申请人： Middle River Aircraft Systems ,  General Electric Company

发明人： HOWARTH, Graham, Frank ,  ROACH, Andrew, Michael ,  DAVIES, Steven, Thomas ,  CEDAR, Richard, David ,  MARTINEZ, Michael, Moses ,  DEPUY, Timothy, Richard

IPC分类号： E04B1/86 ,  G10K11/172 ,  F02K1/82 ,  F02C7/045

CPC分类号： F02C7/24 ,  F02C7/045 ,  F02K1/827 ,  F05D2220/323 ,  F05D2250/11 ,  F05D2250/14 ,  F05D2250/283 ,  F05D2260/963 ,  G10K11/172 ,  Y02T50/672

摘要： An acoustic liner for a turbine engine, the acoustic liner includes a support layer that includes a set of partitioned cavities with open faces, a facing sheet operably coupled to the support layer such that the facing sheet overlies and closes the open faces, a set of perforations located in the facing sheet and in fluid communication with a corresponding one of the cavities to form a set of acoustic resonators, and at least a subset of the perforations have an axially-oriented, relative to the axial flow path, inlet.

公开(公告)号：EP3281192A1

公开(公告)日：2018-02-14

申请号：EP15719352.5

申请日：2015-04-10

申请人： MRA Systems, Inc. ,  General Electric Company

发明人： ROACH, Andrew, Michael ,  HOWARTH, Graham, Frank ,  DAVIES, Steven, Thomas ,  CEDAR, Richard, David ,  MARTINEZ, Michael, Moses ,  DEPUY, Timothy, Richard

IPC分类号： G10K11/172

CPC分类号： G10K11/172 ,  B24C1/04 ,  B24C1/045 ,  G10K11/168

摘要： An acoustic liner (20) with perforation (30) and method of constructing (100) an acoustic liner including forming perforations in the facing sheet by grit blasting (104) the facing sheet and mounting (106) the facing sheet to one side of a support layer having a set of partitioned cavities wherein the facing sheet closes an open face of the cavities except for the perforations to form a set of acoustic resonator cells.