Method for making an acoustic absorption panel in particular...

Details Method for making an acoustic absorption panel in particular... Method for making an acoustic absorption panel in particular...

2008-02-06

2011-11-01

Phillips, Forrest M (Department: 2832)

Acoustics

Sound-modifying means

Muffler, fluid conducting type

C181S210000, C181S292000, C244S00100R

Reexamination Certificate

active

08047326

ABSTRACT:
The invention relates to a method for making an acoustic absorption panel in particular for the nacelle of an aircraft engine, the panel being of the type comprising a cellular core covered on one side with a so-called outer air-permissive skin and on the other side with a so-called inner perforated skin, the cellular core being formed by the edge-to-edge junction of a plurality of blocks with a cellular core (B1, B2). The method comprises the following steps: a) before the edge-to-edge junction of blocks with a cellular core (B1, B2), opening the cells (A1, A2) located on the edges of the blocks to be joined; and b) edge-to-edge dry joining the blocks (B1, B2) so that the open cells (A1, A2) engage into one another.

REFERENCES:
patent: 3910374 (1975-10-01), Holehouse
patent: 5270095 (1993-12-01), Ito et al.
patent: 7541082 (2009-06-01), Yu
patent: 2008/0047121 (2008-02-01), Douglas
patent: 0798107 (1997-10-01), None
patent: 1621752 (2006-02-01), None
International Search Report PCT/FR2008/000141; Dated Nov. 11, 2008.

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