US 12,065,988 B2
Structural and/or acoustic panel comprising a u-shaped sealing flange directed toward the inside of the panel, and method for manufacturing such a panel
Tony Miossec, Moissy-Cramayel (FR); Philippe Bienvenu, Moissy-Cramayel (FR); and Emilie Bemont, Moissy-Cramayel (FR)
Assigned to SAFRAN NACELLES, Gonfreville-l'Orcher (FR)
Appl. No. 17/641,383
Filed by SAFRAN NACELLES, Gonfreville-l'Orcher (FR)
PCT Filed Sep. 7, 2020, PCT No. PCT/FR2020/051538
§ 371(c)(1), (2) Date Mar. 8, 2022,
PCT Pub. No. WO2021/048489, PCT Pub. Date Mar. 18, 2021.
Claims priority of application No. 19 09906 (FR), filed on Sep. 9, 2019.
Prior Publication US 2022/0325681 A1, Oct. 13, 2022
Int. Cl. F02K 1/82 (2006.01)
CPC F02K 1/827 (2013.01) [F05D 2230/237 (2013.01); F05D 2260/96 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A structural and/or acoustic panel for an aircraft propulsion assembly, said panel comprising:
an inner skin,
an outer skin,
an alveolar structure,
a sealing flange, said sealing flange comprising a base and two lateral arms connected to the base, each lateral arm comprising a free end, the lateral arms and the base delimiting a cavity which opens at the free end of the lateral arms, the alveolar structure and the sealing flange being enclosed between the inner skin and the outer skin, one of the lateral arms of the sealing flange being fastened to the inner skin, the other lateral arm of the sealing flange being fastened to the outer skin, and
reinforcements extending into said cavity so as to keep the lateral arms of the sealing flange separated from one another
wherein the free end of each of the lateral arms is facing the alveolar structure such that the alveolar structure delimits said cavity, and
wherein the reinforcements comprise transverse walls fastened to the lateral arms of the sealing flange and spaced apart along a principal direction along which the sealing flange extends.