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1. (WO2018020184) ACOUSTIC PANEL FOR A TURBOMACHINE AND METHOD FOR THE PRODUCTION THEREOF
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.:    WO/2018/020184    International Application No.:    PCT/FR2017/052129
Publication Date: 01.02.2018 International Filing Date: 28.07.2017
IPC:
F02K 1/82 (2006.01), B64C 1/40 (2006.01), F02C 7/045 (2006.01), G10K 11/172 (2006.01)
Applicants: SAFRAN [FR/FR]; 2 Boulevard du Général Martial Valin 75015 PARIS (FR)
Inventors: PICCIRELLI, Nicola; (FR)
Agent: BARBE, Laurent; (FR).
DELAHAYE, Jean-Baptiste; (FR).
GAUER, Pierre; (FR)
Priority Data:
1657417 29.07.2016 FR
Title (EN) ACOUSTIC PANEL FOR A TURBOMACHINE AND METHOD FOR THE PRODUCTION THEREOF
(FR) PANNEAU ACOUSTIQUE POUR UNE TURBOMACHINE ET SON PROCÉDÉ DE FABRICATION
Abstract: front page image
(EN)An acoustic panel (10') for a turbomachine, in particular for an aircraft, comprising two skins (12, 14) that are substantially parallel and between which cavities (16) are located and extend, forming Helmholtz resonators, one of the skins being perforated with orifices (18) opening into the cavities and forming necks of said resonators, characterized in that, in at least some of the cavities, vibrating masses (20) are provided that are linked to cavity walls by elastic means (22).
(FR)Panneau acoustique (10') pour une turbomachine, en particulier d'aéronef, comprenant deux peaux (12, 14) sensiblement parallèles et entre lesquelles sont situées et s'étendent des cavités (16) formant des résonateurs de Helmholtz, une desdites peaux étant percée d'orifices (18) débouchant dans lesdites cavités et formant des cols desdits résonateurs, caractérisé en ce que, dans au moins certaines desdites cavités, sont prévues des masses (20) vibrantes reliées à des parois des cavités par des moyens élastiques (22).
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG).
Publication Language: French (FR)
Filing Language: French (FR)