US 11,988,168 B2
Resonating patch and acoustic treatment cell provided with such a patch
Josselin David Florian Regnard, Moissy-Cramayel (FR); Thibault Abily, Moissy-Cramayel (FR); and Stéphane Bernard Durand, Pruille-le-Chetif (FR)
Assigned to SAFRAN AIRCRAFT ENGINES, Paris (FR); CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, Paris (FR); and UNIVERSITE DU MANS, Le Mans (FR)
Appl. No. 17/756,500
Filed by SAFRAN AIRCRAFT ENGINES, Paris (FR); CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, Paris (FR); and UNIVERSITE DU MANS, Le Mans (FR)
PCT Filed Nov. 19, 2020, PCT No. PCT/FR2020/052141
§ 371(c)(1), (2) Date May 26, 2022,
PCT Pub. No. WO2021/105595, PCT Pub. Date Jun. 3, 2021.
Claims priority of application No. 1913517 (FR), filed on Nov. 29, 2019.
Prior Publication US 2022/0412289 A1, Dec. 29, 2022
Int. Cl. F02K 1/82 (2006.01); G10K 11/16 (2006.01); G10K 11/172 (2006.01)
CPC F02K 1/827 (2013.01) [G10K 11/161 (2013.01); G10K 11/172 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A resonating patch for acoustic treatment for a cell for acoustic treatment of an acoustic panel of a turbomachine of an aircraft, the resonating patch comprising a resonant plate, a transducer and an electrical circuit electrically connected to the transducer, the resonant plate comprising a peripheral strip extending along the perimeter of the resonant plate,
wherein the resonant plate comprises cutouts together defining deformable lamellae having at least one end connected to the peripheral strip.