EP 4392239 A1 20240703 - PREFORM PATCH AND METHOD OF SUBSEQUENT REINFORCEMENT OF A FIBRE COMPOSITE COMPONENT
Title (en)
PREFORM PATCH AND METHOD OF SUBSEQUENT REINFORCEMENT OF A FIBRE COMPOSITE COMPONENT
Title (de)
PREFORM-PATCH UND VERFAHREN ZUR NACHTRÄGLICHEN VERSTÄRKUNG EINES FASERVERBUNDBAUTEILS
Title (fr)
PATCH DE PRÉFORME ET MÉTHODE DE RENFORCEMENT ULTÉRIEUR D'UN COMPOSANT COMPOSITE FIBREUX
Publication
Application
Priority
- DE 102021121793 A 20210823
- DE 102021122535 A 20210831
- DE 102021122791 A 20210902
- EP 2022073334 W 20220822
Abstract (en)
[origin: WO2023025725A1] What is proposed is the use of a preform patch (2) having, on its side facing the surface of the fibre composite component (8), at least one ply of a tearoff fabric (10) as first ply, above that at least one ply of a flow aid (12), and above that at least one ply of a vacuum film (14), wherein the at least one ply of the flow aid (12) is disposed in a distributor space (16) for distribution of the matrix material (6) over the fibre layer (4a) of a fibre material bounded on the outside by the vacuum film (14), and the preform patch (2) has a gas-permeable but matrix material-impermeable membrane (18) and a ply of a spacer fabric (20), wherein the space filled by the spacer fabric (20) forms a suction space (22) sealed in a matrix material-tight manner with respect to the distributor space (16).
IPC 8 full level
B29C 70/30 (2006.01); B29C 70/44 (2006.01); B29C 70/54 (2006.01); B29C 73/10 (2006.01); B32B 37/10 (2006.01)
CPC (source: EP)
B29C 70/30 (2013.01); B29C 70/44 (2013.01); B29C 70/544 (2021.05); B29C 70/546 (2013.01); B29C 73/10 (2013.01); B29B 11/16 (2013.01)
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)
DOCDB simple family (application)
EP 2022073334 W 20220822; EP 22769109 A 20220822