公开(公告)号：US11676567B2

公开(公告)日：2023-06-13

申请号：US16722264

申请日：2019-12-20

Applicant: Airbus Operations SAS

Inventor： Denis Brossard ,  Laurent Caliman ,  Florian Ravise ,  Stéphane Le Clainche

IPC: G10K11/168 ,  F02K1/82 ,  B32B3/08 ,  B29D99/00 ,  G10K11/16 ,  F02C7/045 ,  B29D24/00 ,  B32B3/12

CPC classification number: G10K11/168 ,  B29D24/008 ,  B29D99/0021 ,  B32B3/08 ,  B32B3/12 ,  F02C7/045 ,  F02K1/827 ,  G10K11/16

Abstract: A method for manufacturing a sound absorption structure comprising a cellular panel, a porous layer positioned on a cellular panel first face, a reflective layer positioned on a cellular panel second face and a plurality of acoustic elements positioned in the cellular panel. The method comprises the steps of producing, for each acoustic element, a recess in the cellular panel opening out onto the first and second faces of the cellular panel, inserting the acoustic elements into their recesses, laying an anchoring layer on the second cellular panel face, curing or polymerization at a first pressure to connect each acoustic element to the cellular panel and/or to the anchoring layer, putting in place the porous layer and the reflective layer, and curing or polymerization at a second pressure to connect the porous layer and the reflective layer to the cellular panel.

公开(公告)号：US11731775B2

公开(公告)日：2023-08-22

申请号：US17210621

申请日：2021-03-24

Applicant: Airbus Operations SAS

Inventor： Antoine Cousin ,  Laurent Caliman ,  Jérôme Gaillardo

IPC: B64D29/06 ,  B64D29/08 ,  F02K1/80

CPC classification number: B64D29/06 ,  B64D29/08 ,  F02K1/80 ,  F05D2260/30

Abstract: An aircraft nacelle including an automatically-operated locking device for limiting deformations of the cowl. This automatically-operated locking device includes at least one locking post connected to the cowl, at least one latch able to move between a first position corresponding to a locked state in which the latch prevents the locking post from becoming distanced from a fixed structure and a second position corresponding to an unlocked state in which the latch allows the locking post to become distanced from the fixed structure, at least one return system configured to hold the latch in its second position corresponding to the unlocked state, the cowl holding the latch in its first position when the cowl is in the closed position and allowing the latch to pivot toward its second position when the cowl is in the open position.

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：US11293376B2

公开(公告)日：2022-04-05

申请号：US16745627

申请日：2020-01-17

Applicant: Airbus Operations SAS

Inventor： Antoine Cousin ,  Laurent Caliman ,  Jérôme Gaillardo

IPC: F02K1/72 ,  F02K1/76 ,  B64D27/18 ,  B64D29/06

Abstract: A nacelle comprising a fixed structure with a fixed cowl and a duct, a mobile assembly with a chassis forming a frame and a mobile cowl, the chassis being mobile, relative to the fixed structure, in translation between an advanced position and a retracted position to open an opening through the frame between the duct and the outside. The mobile assembly comprises at least one threaded rod parallel to the direction of displacement and fixed to the chassis through the frame. The fixed structure comprises an outer, an inner, and at least one intermediate box fixed to the inner box and to the outer box. For each threaded rod, the fixed structure comprises a motorized ball nut which meshes with the threaded rod, and an actuator which turns the ball nut and is fixed to at least one box from among the outer, the inner, or the intermediate box.