US 12,392,258 B2
Exterior ferrule of an intermediate housing made of composite material for an aircraft turbine engine
Thibaut Vogel, Moissy-Cramayel (FR); Laurent Jean Baptiste Baroumes, Moissy-Cramayel (FR); Francois Charleux, Moissy-Cramayel (FR); Hervé Grelin, Moissy-Cramayel (FR); and Azath Mohamed, Moissy-Cramayel (FR)
Assigned to SAFRAN AIRCRAFT ENGINES, Paris (FR)
Appl. No. 18/554,307
Filed by SAFRAN AIRCRAFT ENGINES, Paris (FR)
PCT Filed Apr. 5, 2022, PCT No. PCT/FR2022/050637
§ 371(c)(1), (2) Date Oct. 6, 2023,
PCT Pub. No. WO2022/214765, PCT Pub. Date Oct. 13, 2022.
Claims priority of application No. 2103576 (FR), filed on Apr. 8, 2021.
Prior Publication US 2024/0191637 A1, Jun. 13, 2024
Int. Cl. F01D 25/24 (2006.01); B29C 70/24 (2006.01); B29C 70/48 (2006.01); B29K 63/00 (2006.01); B29K 105/08 (2006.01); B29K 307/04 (2006.01); B29L 31/00 (2006.01)
CPC F01D 25/24 (2013.01) [B29C 70/24 (2013.01); B29C 70/48 (2013.01); B29K 2063/00 (2013.01); B29K 2105/0845 (2013.01); B29K 2307/04 (2013.01); B29L 2031/7504 (2013.01); F05D 2300/6034 (2013.01)] 11 Claims
OG exemplary drawing
 
1. Exterior ferrule of an intermediate casing for an aircraft turbine engine, the ferrule made from composite material comprising an annular connecting downstream end forming a peripheral groove radially open towards the outside, said groove being configured to receive a complementary connecting member provided on one or more nacelle cowls, and this groove being axially delimited by an upstream groove wall, as well as by a downstream groove wall,
wherein the ferrule is produced from:
a first fibrous preform obtained by three-dimensional weaving of threads and densified by a matrix, the first preform defining a barrel of the ferrule and a structural part of the downstream groove wall, projecting radially outwards with respect to the barrel; and
at least one second fibrous preform, each of the at least one second fibrous preforms being obtained by three-dimensional weaving of threads and densified by a matrix, the at least one second fibrous preform defining a base externally attached to the barrel defined by the first preform, as well as a structural part of the upstream groove wall, projecting radially outwards with respect to the barrel.