公开(公告)号：US20220097863A1

公开(公告)日：2022-03-31

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 ,  G10K11/162 ,  B29D99/00

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：US20190161157A1

公开(公告)日：2019-05-30

申请号：US16201035

申请日：2018-11-27

Applicant: AIRBUS OPERATIONS SAS

Inventor： Florian RAVISE ,  Wolfgang BROCHARD

IPC: B64C1/40 ,  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：US20230286245A1

公开(公告)日：2023-09-14

申请号：US18180291

申请日：2023-03-08

Applicant: Airbus Operations SAS

Inventor： Laurent CALIMAN ,  Florian RAVISE ,  Michael BELIN

IPC: B32B3/12 ,  B32B3/28 ,  B32B27/34 ,  B32B37/18 ,  B32B38/08 ,  B32B37/12 ,  B32B27/08

CPC classification number: B32B3/12 ,  B32B3/28 ,  B32B27/34 ,  B32B37/18 ,  B32B38/08 ,  B32B37/12 ,  B32B27/08 ,  B32B2307/304 ,  B32B2260/046 ,  B32B2260/028 ,  B32B2264/105 ,  B32B2305/07

Abstract: A honeycomb structure has a core made up of a plurality of corrugated sheets which are superposed and fixed together. The corrugated sheets are made from a thermally insulating material. The corrugated sheets are impregnated with a resin filled with thermally conductive powder along their entire length. The honeycomb structure can be used when the ambient temperature exceeds, for example, 120° C.

公开(公告)号：US20230088770A1

公开(公告)日：2023-03-23

申请号：US17940077

申请日：2022-09-08

Applicant: Airbus Operations SAS

Inventor： Florent MERCAT ,  Florian RAVISE

IPC: B32B3/12 ,  F02K1/34 ,  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：US20180182369A1

公开(公告)日：2018-06-28

申请号：US15848818

申请日：2017-12-20

Applicant: Airbus Operations SAS

Inventor： Florian RAVISE ,  Florent MERCAT

IPC: G10K11/168 ,  B64C7/02 ,  B32B15/14 ,  B32B15/02 ,  B32B7/04 ,  B32B5/02

CPC classification number: G10K11/168 ,  B29K2105/20 ,  B32B5/024 ,  B32B7/04 ,  B32B15/02 ,  B32B15/14 ,  B32B2305/026 ,  B32B2307/10 ,  B64C7/02 ,  F02C7/045 ,  F02K1/827 ,  Y02T50/672

Abstract: A method for obtaining a porous acoustic layer, comprising a step of deposition of a plurality of fiber wicks arranged in at least two secant directions, the width, the orientation and/or the spacing of the fiber wicks being determined as a function of the open surface ratio desired for each zone of the porous acoustic layer. A porous acoustic layer obtained according to the method, as well as an acoustic panel comprising at least one porous layer, are also disclosed.

公开(公告)号：US20230103118A1

公开(公告)日：2023-03-30

申请号：US17953553

申请日：2022-09-27

Applicant: Airbus Operations SAS

Inventor： Wolfgang BROCHARD ,  Laurent CAZEAUX ,  Florian RAVISE

IPC: B29C45/14 ,  B29B11/06 ,  B29C45/00 ,  F02K1/62

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：US20220111627A1

公开(公告)日：2022-04-14

申请号：US17495885

申请日：2021-10-07

Applicant: Airbus Operations SAS

Inventor： Florian RAVISE ,  Benoit CADIOU

IPC: B32B38/04 ,  B32B3/12 ,  B32B7/12 ,  B32B3/26 ,  G10K11/168 ,  G06T7/00 ,  G06T7/13 ,  B64D29/00

Abstract: A method for manufacturing a soundproofing assembly involving providing a first panel of honeycomb structure, fastening an intermediate plate against a second face of the first panel, adhesive-coating a layer of adhesive on the intermediate plate, providing a second panel of honeycomb structure, bonding the first face of the second panel to the layer of adhesive, and perforating the intermediate plate and the layer of adhesive through the cells of the first panel or the cells of the second panel at the bonding zone of the second panel. Such a method makes it possible to save time by dispensing with additional preparation steps.

公开(公告)号：US20210371118A1

公开(公告)日：2021-12-02

申请号：US17330598

申请日：2021-05-26

Applicant: Airbus Operations SAS

Inventor： Alain PORTE ,  Jacques LALANE ,  Florian RAVISE ,  Franck DOBIGEON

IPC: B64D29/00 ,  B29C65/48 ,  B29C65/00 ,  G10K11/162 ,  G10K13/00

Abstract: A method for producing an alveolar soundproofing structure in which a portion of a membrane of a diaphragm including an acoustic outlet is inserted into a hole of a perforated membrane which covers a cell of the alveolar structure, and the diaphragm is pressed into the cell with the perforated membrane becoming deformed and is fixed at that location. It also relates to the alveolar structure. Such a method enables different types of diaphragms to be inserted into different configurations of cells and enables the diaphragm to be fixed therein, in accordance with the sound frequencies to be processed.

公开(公告)号：US20230286234A1

公开(公告)日：2023-09-14

申请号：US18180283

申请日：2023-03-08

Applicant: Airbus Operations SAS

Inventor： Laurent CALIMAN ,  Florian RAVISE ,  Arnaud BOURHIS

IPC: B29D24/00 ,  B29C70/08 ,  B29C70/88 ,  B29C65/00

CPC classification number: B29D24/005 ,  B29C70/083 ,  B29C70/88 ,  B29C66/438 ,  B29L2031/608

Abstract: A honeycomb structure having a core made up of a plurality of corrugated sheets which are superposed and adhesively bonded together is described. The corrugated sheets are made from a thermally insulating material. Bear filaments are made up of thermally conductive filaments. The honeycomb structure can be used when the ambient temperature exceeds, for example, 120° C.

公开(公告)号：US20230138228A1

公开(公告)日：2023-05-04

申请号：US17979023

申请日：2022-11-02

Applicant: Airbus Operations SAS

Inventor： Arnaud BOURHIS ,  Florian RAVISE ,  Maxime ZEBIAN

IPC: F02C7/045

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.