EP 4319976 A1 20240214 - SOUND-DAMPING COMPOSITE COMPONENT HAVING HONEYCOMB CORE, AND METHOD FOR THE PRODUCTION THEREOF
Title (en)
SOUND-DAMPING COMPOSITE COMPONENT HAVING HONEYCOMB CORE, AND METHOD FOR THE PRODUCTION THEREOF
Title (de)
SCHALLDÄMMENDES VERBUNDBAUTEIL MIT WABENKERN UND HERSTELLVERFAHREN HIERFÜR
Title (fr)
COMPOSANT COMPOSITE INSONORISANT AVEC UNE ÂME EN NID D'ABEILLES, ET PROCÉDÉ DE PRODUCTION DE CELUI-CI
Publication
Application
Priority
- LU 102779 A 20210409
- EP 2022057622 W 20220323
Abstract (en)
[origin: WO2022214316A1] The invention relates to a sound-damping composite component (1), comprising a honeycomb (10) and at least one insert body (18;... 68) in each of at least some honeycomb cells (16), and to a method for the production thereof. Each insert body has a main axis (H), a first end (21;... 61), a second end (22;... 62) and a contiguous surface (25;... 65) and is inserted with the main axis (H) in the direction of the honeycomb depth (T). According to the invention, the contiguous surface (25;... 65) has surface regions (25a, 25b;... 65a, 65b) which, in the axial direction, are spaced apart from each other and face each other and which overlap in a projection onto a plane perpendicular to the main axis (H) in order to delimit a passage (20;... 60) for sound waves in the axial direction. The path of the contiguous surface (25;... 65) through these surface regions (25a, 25b;... 65a, 65b) from the first end (21;... 61) to the second end (21;... 61) circles around the main axis (H), and/or said path crosses the main axis (H) multiple times.
IPC 8 full level
B32B 3/12 (2006.01); B32B 3/26 (2006.01); B32B 5/02 (2006.01); B32B 5/26 (2006.01); B32B 7/12 (2006.01); B32B 9/00 (2006.01); B32B 15/04 (2006.01); B32B 15/08 (2006.01); B32B 15/14 (2006.01); B32B 15/20 (2006.01); G10K 11/168 (2006.01)
CPC (source: EP US)
B32B 3/12 (2013.01 - EP US); B32B 3/266 (2013.01 - EP); B32B 3/28 (2013.01 - US); B32B 5/022 (2013.01 - EP); B32B 5/024 (2013.01 - EP); B32B 5/263 (2021.05 - EP); B32B 7/12 (2013.01 - EP US); B32B 9/005 (2013.01 - EP); B32B 15/043 (2013.01 - EP); B32B 15/08 (2013.01 - EP); B32B 15/14 (2013.01 - EP); B32B 15/20 (2013.01 - EP); G10K 11/172 (2013.01 - EP); B32B 2250/03 (2013.01 - EP); B32B 2250/05 (2013.01 - EP); B32B 2260/023 (2013.01 - EP); B32B 2260/046 (2013.01 - EP); B32B 2307/102 (2013.01 - EP US); B32B 2307/718 (2013.01 - EP); B32B 2605/18 (2013.01 - EP US); B33Y 80/00 (2014.12 - US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
WO 2022214316 A1 20221013; CN 117295607 A 20231226; EP 4319976 A1 20240214; JP 2024519192 A 20240509; LU 102779 B1 20221011; US 2024190102 A1 20240613
DOCDB simple family (application)
EP 2022057622 W 20220323; CN 202280027109 A 20220323; EP 22717165 A 20220323; JP 2023560976 A 20220323; LU 102779 A 20210409; US 202318553944 A 20230323