SOUND-ABSORBING PANEL AND MANUFACTURING METHOD FOR SAME

Title:

SOUND-ABSORBING PANEL AND MANUFACTURING METHOD FOR SAME

Document Type and Number:

WIPO Patent Application WO/2018/225706

Kind Code:

A1

Abstract:

A sound-absorbing panel to be used affixed to a jet engine of an aircraft, provided with: a resin core layer 20 having a first surface, a second surface disposed on the side opposite from the first surface, and multiple partitions extending between the first surface and second surface so as to partition multiple cells; a resin first skin layer 30a laminated on the first surface of the core layer 20; and a resin second skin layer 40a laminated on the second surface of the core layer 20. The first skin layer 30a is disposed so as to face the external space while in use, and has multiple through-holes 60 for providing communication between internal spaces of the multiple cells S and external space faced by the first skin layer 30a. The core layer 20 has openings 50 for providing communication between the internal spaces of the multiple cells and external space of the core layer 20.

Inventors:

OISHI TSUTOMU (JP)
HOJO MASAHIRO (JP)
SHIBAGAKI SHINGO (JP)

Application Number:

PCT/JP2018/021486

Publication Date:

December 13, 2018

Filing Date:

June 05, 2018

Export Citation:

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Assignee:

IHI CORP (JP)
JAPAN AEROSPACE EXPLORATION (JP)
GIFU PLASTIC IND CO LTD (JP)

International Classes:

B64D33/00; B32B3/12; B32B27/34; B64C1/00; F02C7/045

Domestic Patent References:

WO2015187879A1

2015-12-10

Foreign References:

JPH06173772A	1994-06-21
JPH10175263A	1998-06-30
JP2006103403A	2006-04-20
JP3994404B2	2007-10-17
JPS5967407U	1984-05-07
JPH03501591A	1991-04-11
US20010005937A1	2001-07-05
JPS574814A	1982-01-11

Other References: