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公开(公告)号：US20210107666A1
公开(公告)日：2021-04-15
申请号：US16990260
申请日：2020-08-11
发明人： Alain PORTE , Jacques LALANE , Frédéric VINCHES , Franck DOBIGEON
摘要： An anterior part of an aircraft propulsion assembly nacelle, having an air intake lip disposed at a front end and an outer panel, of which an outer face extends an outer part of the air intake lip. A front edge of the outer panel and a rear edge of the air intake lip are shaped so as to overlap radially and to nest so as to ensure a continuous surface between the outer surface of the outer part of the air intake lip and the outer face of the outer panel. Moreover, the front edge of the outer panel is connected to the rear edge of the air intake lip with no added rigid element. This permits a rigid connection while avoiding creating local irregularities on the outer surface of the nacelle, which irregularities might disrupt the flow of air around the nacelle, giving rise to additional drag.
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公开(公告)号：US20220097863A1
公开(公告)日：2022-03-31
申请号：US17387529
申请日：2021-07-28
发明人： Alain PORTE , Jacques LALANE , Florian RAVISE , Franck DOBIGEON
IPC分类号： B64D29/00 , G10K11/162 , B29D99/00
摘要： 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.
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公开(公告)号：US20200265821A1
公开(公告)日：2020-08-20
申请号：US16789065
申请日：2020-02-12
发明人： Theo RICCOBENE , Franck DOBIGEON
IPC分类号： G10K11/168
摘要： A method for producing an acoustic absorption structure comprising an acoustically resistive structure, an alveolar structure, a reflective layer and a plurality of acoustic elements positioned in the alveolar structure, against the acoustically resistive structure, the method comprising forming a skin forming enclosures of the acoustic elements by depositing a resin on a mold having a base on which are positioned projecting forms shaped like the cavities delimited by the enclosures of the acoustic elements, placing the mold supporting the resin together with the alveolar structure, the resin being intercalated between the mold and the alveolar structure, polymerizing the resin to simultaneously obtain a hardening of the skin and also the joint between the skin and the alveolar structure, and fitting the acoustically resistive structure and the reflective layer.
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公开(公告)号：US20210371118A1
公开(公告)日：2021-12-02
申请号：US17330598
申请日：2021-05-26
发明人： Alain PORTE , Jacques LALANE , Florian RAVISE , Franck DOBIGEON
IPC分类号： B64D29/00 , B29C65/48 , B29C65/00 , G10K11/162 , G10K13/00
摘要： 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.
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公开(公告)号：US20180363319A1
公开(公告)日：2018-12-20
申请号：US16012241
申请日：2018-06-19
申请人： Airbus SAS , Airbus Operations SAS
发明人： Jean-Claude MARTY , Julien CHARLES , Olivier LEBAHAR , Franck DOBIGEON , Guillaume FERRER , Thierry BORJA , Sebastien HANSER
CPC分类号： E04H15/20 , B05D3/0254 , B05D3/0413 , B05D5/005 , B29C73/02 , B29C73/34 , B29L2031/3082 , B64C1/06 , E04H2015/201
摘要： A method for repairing a structure comprising at least one zone to be heated and which comprises the steps of inflating a frame to form a framework, attaching panels removably to the frame to form an enclosure referred to as a heating enclosure, positioning the enclosure over the zone, heating the interior space of the enclosure using a heating device.
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6.发明公开公开(公告)号：US20240010848A1
公开(公告)日：2024-01-11
申请号：US18249348
申请日：2021-10-18
CPC分类号： C09D5/1687 , B64C7/02 , B64D33/02 , C09D5/1675 , B64C2230/26
摘要： A self-cleaning external with a self-cleaning aerodynamic surface configured to extract at least some of the oxygen present in the atmosphere in contact with the aerodynamic surface so as to at least partially deprive a haemolymph of the insect residue, present on the aerodynamic surface after being hit by insects, of oxygen. Also, a vehicle with at least one such self-cleaning aerodynamic surface.
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公开(公告)号：US20210375252A1
公开(公告)日：2021-12-02
申请号：US17330910
申请日：2021-05-26
发明人： Alain PORTE , Jacques LALANE , Florian RAVISE , Franck DOBIGEON , Florent MERCAT
摘要： A cellular sound insulation structure and associated aircraft, a cell of which is provided with a diaphragm which includes a membrane having at least one orifice passing through a thickness of the membrane, and at least one tube surmounting the orifice and extending from a face of the membrane into one compartment of the cell, the tube comprising a free end, forming an acoustic outlet, which is positioned at a distance (p) from the base cross section of the cell. Also, a method for manufacturing such a cellular sound insulation structure, as well as to a tool for inserting a diaphragm into a cell. Such a cellular structure makes it possible to treat a wider acoustic frequency spectrum, and its acoustic dimensioning as well as its manufacture are simplified.
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