Acoustic liners

Details Acoustic liners Acoustic liners

2011-06-28

2011-06-28

Phillips, Forrest M (Department: 2832)

Acoustics

Sound-modifying means

Sound absorbing panels

C181S210000, C181S214000, C181S293000, C181S294000, C181S290000, C415S119000, C244S00100R

Reexamination Certificate

active

07967108

ABSTRACT:
An acoustic assembly for a fan casing of a turbofan engine is made up from acoustic liner panel components which each comprise a body and a backing sheet. The body is an integral injection moulding that generally includes an acoustic structure, a perforated sheet and fastening portions. Adjacent panel components engage each other at non-linear circumferential edges which generally includes lugs on one of the components which are received in recesses of the other component. The lugs are defined by following cell walls over a convoluted path along the circumferential edge.

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