公开(公告)号：US20230128247A1

公开(公告)日：2023-04-27

申请号：US17964236

申请日：2022-10-12

Applicant: Airbus Operations SAS

Inventor： Florian Ravise ,  Benoit Przybyla

IPC: B64C1/12 ,  B32B3/26 ,  B32B5/02 ,  B32B15/08 ,  B32B27/28 ,  B32B7/12 ,  B32B3/12 ,  B32B15/02 ,  G10K11/168 ,  B64F5/10 ,  B64C1/40

Abstract: A resistive skin element for an acoustic panel intended for an aircraft includes a first ply, a second ply with openings and a wire mesh which is sandwiched between the two plies. First ply includes at least one layer made of C/PEAK and a film made of PEI. Second ply includes at least one layer made of PEI First ply is crossed by perforations. Second ply has openings configured so that second ply does not obstruct the perforations of first ply. The wire mesh allows perforations with large sizes to be made while keeping good acoustic properties.

公开(公告)号：US11348565B2

公开(公告)日：2022-05-31

申请号：US16664995

申请日：2019-10-28

Applicant: Airbus Operations SAS

Inventor： Florian Ravise ,  Lionel Czapla

IPC: G10K11/168 ,  G10K11/172 ,  B32B3/12 ,  B32B3/26

Abstract: An assembly forming an acoustic insulator having a first sheet, a pierced second sheet, and a plurality of first and second structures. Each first structure comprises a first and a second strip, wherein each is shaped to form half of the wall of a cage and wherein, for two successive halves, each strip comprises a facet of a joining wall. Each second structure is made up of a first and a second strip, wherein each is shaped to form half of the wall of a cone, wherein. For each strip, at least one of the wall halves of each cone is pierced. For two successive halves, each strip comprises one facet of the connecting wall. Each cone is located in a cell and each connecting wall is located between the two facets of a joining wall, and, between two adjacent first structures, a second structure is likewise fitted.

公开(公告)号：US12269245B2

公开(公告)日：2025-04-08

申请号：US17940077

申请日：2022-09-08

Applicant: Airbus Operations SAS

Inventor： Florent Mercat ,  Florian Ravise

IPC: G10K11/172 ,  B32B3/12 ,  B64C1/40 ,  B64D33/02 ,  B64D33/04 ,  F02K1/82 ,  G10K11/168

Abstract: An acoustic treatment panel includes at least one acoustically resistive layer, a reflective layer and at least one cellular structure interposed between the acoustically resistive layer and the reflective layer. The cellular structure includes cylindrical and identical main tubes which are closed at one end by the acoustically resistive layer and at the other end by the reflective layer, spacer zones between the main tubes, the spacer zones being sealed relative to one another, cutouts made at an end of certain main tubes, in contact with the reflective layer, and/or secondary tubes positioned in the main tubes and/or in the spacer zones, the cutouts and/or the secondary tubes being configured to generate acoustic cells of different dimensions from identical main tubes.

公开(公告)号：US11952136B2

公开(公告)日：2024-04-09

申请号：US17387529

申请日：2021-07-28

Applicant: Airbus Operations SAS

Inventor： Alain Porte ,  Jacques Lalane ,  Florian Ravise ,  Franck Dobigeon

IPC: B64D29/00 ,  B29D99/00 ,  B29L31/30 ,  F02C7/045 ,  F02C7/24 ,  F02K1/82 ,  G10K11/162

CPC classification number: B64D29/00 ,  B29D99/0021 ,  F02C7/045 ,  F02C7/24 ,  F02K1/827 ,  G10K11/162 ,  B29L2031/3076

Abstract: An acoustic panel comprising a cellular structure, such as a honeycomb structure, having cells that open at least onto a first frontal face of the structure. The panel comprises a capsular skin which is fastened to the first frontal face of the cellular structure next to a plurality of cells. The capsular skin including a continuous layer of material, in one piece, forming capsules that extend into the cellular structure. At least one channel is provided at the apex of each capsule for the passage of acoustic waves. Such a panel effectively attenuates the noise of aircraft engines, in particular, the low frequencies. It is extremely easy to manufacture industrially, the capsular skin being able to be obtained by molding with polymerization in situ, the polymerizable material then adhering to the cellular structure while it polymerizes.

公开(公告)号：US12163469B2

公开(公告)日：2024-12-10

申请号：US17979023

申请日：2022-11-02

Applicant: Airbus Operations SAS

Inventor： Arnaud Bourhis ,  Florian Ravise ,  Maxime Zebian

IPC: F02C7/045 ,  F02C7/24 ,  B32B3/12 ,  B64D33/02

Abstract: A module ensuring an acoustic attenuation of a flow of a first fluid and a heat exchange between the first fluid and a second fluid. The module comprises a perforated first wall with a cutout, a second wall, a cellular structure extending from the second wall to the first wall, a recess provided in the cellular structure between a perforated bottom and a perforated top, and a heat exchanger which is fixed inside the recess between the bottom and the top and in which the second fluid circulates. Such a module ensures an attenuation of sound waves and a heat exchange without limiting the attenuation surface.

公开(公告)号：US12053915B2

公开(公告)日：2024-08-06

申请号：US17953553

申请日：2022-09-27

Applicant: Airbus Operations SAS

Inventor： Wolfgang Brochard ,  Laurent Cazeaux ,  Florian Ravise

IPC: B29C45/14 ,  B29C45/00 ,  B29C51/00 ,  F02K1/62 ,  B29K105/16 ,  B29K671/00 ,  B29L31/30

CPC classification number: B29C45/14786 ,  B29C45/0013 ,  B29C45/0053 ,  B29C45/14 ,  B29C45/14065 ,  B29C45/1418 ,  B29C51/004 ,  F02K1/62 ,  B29C2045/14442 ,  B29K2105/16 ,  B29K2671/00 ,  B29L2031/3076

Abstract: A door for a thrust reversal system, an aircraft with such a door, and a method for manufacturing a door of a thrust reversal system. The door comprises a wall formed from long fibers embedded in a thermoplastic resin matrix and a network of ribs overmolded on one of the faces of the wall. A propulsion assembly of an aircraft comprises a thrust reversal system having a plurality of such doors.

公开(公告)号：US20230173766A1

公开(公告)日：2023-06-08

申请号：US18075293

申请日：2022-12-05

Applicant: Airbus Operations SAS

Inventor： Florian Ravise ,  Maxime Gauthier ,  Manuel Teigne

IPC: B29C65/00 ,  B29C65/72

CPC classification number: B29C66/438 ,  B29C65/72

Abstract: An assembly jig for a cellular structure made from strips of material placed adjacent to each other and joined together so as to form first and second cells, opening on the first and second faces of the cellular structure, respectively. This assembly jig includes a housing delimited by a base and first and second side faces, configured for housing the strips of material of a cellular structure to be formed, superimposed on each other, a plurality of pins configured to be positioned between the superimposed strips of material in the first and/or second cells. An assembly device comprising the jig, and a method for manufacturing a cellular structure using the jig are also provided.

公开(公告)号：US11572189B2

公开(公告)日：2023-02-07

申请号：US16695375

申请日：2019-11-26

Applicant: Airbus Operations SAS

Inventor： Claire Maffre ,  Jérôme Gaillardo ,  Lionel Czapla ,  Florian Ravise ,  Laurent Caliman ,  Laurent Cazeaux ,  Antoine Cousin ,  Denis Brossard

IPC: F02K1/34 ,  F02C7/24 ,  G10K11/162 ,  G10K11/172

Abstract: An acoustic absorption structure comprising a plurality of resonators. Each resonator comprises a first chamber which has a first mouthpiece delimited by an edge pressed against an inner surface of a porous zone of a skin so that the first chamber and the skin delimit a first cavity, a second chamber, in which is positioned the first chamber, which delimits, with the first chamber, a second cavity, at least one acoustic orifice passing through the first chamber, at least one drainage orifice passing through the first chamber and at least one drainage hole passing the second chamber, each drainage orifice and each drainage hole being configured to limit an accumulation of fluid in the resonator. Also, an aircraft propulsive assembly or an aircraft comprising the acoustic absorption structure are provided.

公开(公告)号：US11208193B2

公开(公告)日：2021-12-28

申请号：US16201035

申请日：2018-11-27

Applicant: AIRBUS OPERATIONS SAS

Inventor： Florian Ravise ,  Wolfgang Brochard

IPC: B64C1/40 ,  F02C7/045 ,  G10K11/168

Abstract: An acoustic panel (1) includes a plate (2) made of an acoustic absorbing material (3), as well as a resistive skin (4) and a backing skin (6) arranged respectively on both sides of the plate (2), the acoustic panel (1) including acoustic elements (8) able to carry out an acoustic absorption, each of them being arranged in a housing (7) provided in the plate (2) with an opening (9) in front of the resistive skin (4). The combination of the plate (2) and the acoustic elements (8) allows to combine the sound attenuation properties of these two types of elements and to increase the frequency range of sounds that can be attenuated by the acoustic panel (1), without increasing the dimension.

公开(公告)号：US12106744B2

公开(公告)日：2024-10-01

申请号：US17685594

申请日：2022-03-03

Applicant: Airbus Operations SAS

Inventor： Florian Ravise ,  Théo Riccobene

IPC: B32B3/12 ,  B32B5/18 ,  F02C7/24 ,  G10K11/168 ,  B64C7/02

CPC classification number: G10K11/168 ,  B32B3/12 ,  B32B5/18 ,  B32B2307/102 ,  B32B2307/416 ,  B32B2605/18 ,  B64C7/02 ,  F02C7/24

Abstract: A method for manufacturing an acoustic absorption structure comprising a plurality of acoustic elements, each of which is positioned in one of the cells of a cellular panel. The method includes a step of manufacturing acoustic elements provided with at least two radial tongues, a step of manufacturing a cellular panel provided with slots configured to accommodate the radial tongues of each acoustic element, a step of force-fitting each acoustic element in one of the cells of the cellular panel until the radial tongues are accommodated in the slots. An acoustic absorption structure obtained using this method is provided.