09514734 cites 42 patents.

An improved acoustic liner for turbine engines is disclosed. The acoustic liner may include a straight cell section including a plurality of cells with straight chambers. The acoustic liner may also include a bent cell section including one or more cells that are bent to extend chamber length without increasing the overall height of the acoustic liner by the entire chamber length. In some cases, holes are placed between cell chambers in addition to bending the cells, or instead of bending the cells.

Title
Acoustic liners for turbine engines
Application Number
13/537816
Publication Number
9514734 (B1)
Application Date
June 29, 2012
Publication Date
December 6, 2016
Inventor
James D Heidmann
Solon
OH, US
Christopher Miller
Rocky River
OH, US
James D Kiser
Hinckley
OH, US
Joseph E Grady
Avon
OH, US
Michael G Jones
Newport News
VA, US
Agent
Robert H Earp III
Assignee
The United States of America Represented by the Administrator of National Aeronautics and Space Administration
DC, US
IPC
F02K 1/82
B32B 3/12
E04B 1/74
E04B 1/86
E04B 1/82
G10K 11/00
G10K 11/172
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