Patent · US Active

Aircraft trim panel with integrated adjustable acoustic properties

US8079443B2 · kind B2 · utility

15Cited by

17References

7Claims

0Family size

Assignee

Pelzer Acoustic Products GmbH · DE

Inventor

Hans-Peter Keller · Oberdürnten, CH

Key dates

Filing date	Jan 7, 2008
Grant date	Dec 20, 2011
Priority date	—
Expiry date	Jan 7, 2028

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB64C1/40
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A trim panel for an aircraft interior includes a first sound attenuating layer, a structural layer and a second sound attenuating layer. The structural layer is coupled to the exterior sound attenuating layer, and has an exterior side and an opposite interior side. The structural layer defines a plurality of passages that open to both the exterior side and the interior side so as to minimize radiation of noise due to a hydrodynamic shortcut created by each of the passages across the structural layer. The second sound attenuating layer is coupled to the structural layer and has a high sound absorption characteristic. The second sound attenuating layer is configured to be disposed adjacent to the aircraft interior.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.