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公开(公告)号：US11905839B2
公开(公告)日：2024-02-20
申请号：US17753547
申请日：2020-09-09
发明人： Thomas Dupays , Clement Bourolleau , Coline Poulenc , Anwer Siraj
IPC分类号： F01D11/12
CPC分类号： F01D11/122 , F05D2240/11 , F05D2260/96 , F05D2300/603 , F05D2300/614
摘要： The invention relates to a method for manufacturing an aircraft turbine engine housing, the housing (23) comprising: —an annular shell (29) with axis A; —an annular element (24; 253, 254) attached to the inside of the shell (29), the annular element comprising a body (25) made of NIDA-type cellular material and comprising a downstream portion (252) covered with an abradable material (26), and an upstream portion (251) without abradable material, the body (25) extending in a continuous manner from the upstream portion (251) to the downstream portion (252), the method comprising: —manufacturing the annular element in the form of a continuous annular body, —cutting the annular body into segments (253, 254), —attaching the segments to the shell, and —depositing the abradable material (26) onto the inside surface (25a) of the downstream portion (252).
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公开(公告)号：US11879412B2
公开(公告)日：2024-01-23
申请号：US17428247
申请日：2020-02-07
发明人： Anwer Siraj , Clément Bourolleau , Serge Domingues , Vincent Pascal Fiore , Florent Louis André Rognin
CPC分类号： F02K3/06 , F01D11/12 , F01D21/045 , F02K1/827 , B64D2033/0206 , F05D2220/36 , F05D2240/14 , F05D2260/96 , F05D2300/6034
摘要： A ring assembly has a housing made of woven composite material carrying on its radially inner face an acoustic panel with a cellular structure covered with a composite material. The housing includes at least one radial recess in which is engaged at least one radially outwardly projecting part of the radially outer face of the acoustic panel.
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公开(公告)号：US11891910B2
公开(公告)日：2024-02-06
申请号：US17273528
申请日：2019-09-03
发明人： Clément Bourolleau , Serge Domingues , Vincent Pascal Fiore , Florent Louis André Rognin , Anwer Siraj
IPC分类号： F01D25/24 , B29C70/22 , B29C70/32 , B29C70/86 , B29L31/00 , F01D25/28 , F01D25/26 , F01D5/14 , F01D5/28
CPC分类号： F01D25/24 , B29C70/222 , B29C70/32 , B29C70/865 , B29L2031/7504 , F01D5/14 , F01D5/141 , F01D5/282 , F01D25/26 , F01D25/28 , F05D2230/21 , F05D2240/14 , F05D2250/75 , F05D2300/6012 , F05D2300/6031 , F05D2300/6034
摘要： A method for manufacturing a composite-material casing for a gas turbine, includes producing by three-dimensional weaving a fiber texture in the form of a strip, winding of the fiber texture around several superimposed turns on a mandrel with a profile corresponding to that of the casing to be manufactured in order to obtain a fiber preform of a shape corresponding to that of the casing to be manufactured, and densifying the fiber preform by a matrix. During the winding of the last turn of the fiber texture on the mandrel, at least one stiffening element is interposed between the before-last turn and the last turn of the fiber texture. The stiffening element projects over the outer surface of the before-last turn of the fiber texture. The stiffening element has an axial section of omega-type shape.
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公开(公告)号：US11753957B2
公开(公告)日：2023-09-12
申请号：US17602967
申请日：2020-04-10
CPC分类号： F01D11/122 , F01D21/003 , F01D25/24 , F05D2230/31 , F05D2300/516 , F05D2300/6111
摘要： A method for detecting at least one roughness in a face of an abradable layer in a fan casing is provided. The method includes a step of depositing on the abradable layer a first coating and a second coating covering the first coating. The first and second coatings have respective thicknesses (N1, N2) and a physical appearance that differ from one another. Local appearance of the first coating is indicative of a need for a localized touch-up, and local disappearance of the first coating and the second coating is indicative of a need for a localized replacement of the abradable layer.
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公开(公告)号：US11788558B2
公开(公告)日：2023-10-17
申请号：US17272735
申请日：2019-08-28
发明人： Florent Louis Andre Rognin , Clement Bourolleau , Serge Domingues , Vincent Pascal Fiore , Anwer Siraj
CPC分类号： F04D29/665 , F04D29/522 , F04D29/526 , F05D2220/323 , F05D2230/30
摘要： A fan casing for an aircraft turbomachine, the casing including a one-piece annular body, the one piece annular body including a radially internal annular surface, a first annular portion of which is made of an abradable material, wherein a second annular portion of the internal surface comprises blind holes conferring acoustic properties to the second portion.
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公开(公告)号：US11702961B2
公开(公告)日：2023-07-18
申请号：US17426901
申请日：2020-01-17
CPC分类号： F01D25/24 , B29C70/24 , B29C70/32 , F01D21/045 , B29K2105/0845 , B29L2031/7504 , F05D2240/14 , F05D2300/6012 , F05D2300/6031
摘要： A gas turbine fan casing made of composite material with a fibrous reinforcement includes a plurality of superimposed turns of a strip-shaped fibrous texture having a three-dimensional weaving between a plurality of layers of warp yarns and a plurality of layers of weft yarns, the fibrous reinforcement being densified by a matrix. The fibrous texture includes at least one lateral section of variable thickness in which the weft yarns have a size or a count different from the size or the count of the weft yarns of the plurality of layers of weft yarns present in the remainder of the fibrous texture.
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公开(公告)号：US20220195881A1
公开(公告)日：2022-06-23
申请号：US17602967
申请日：2020-04-10
摘要： A method for detecting at least one roughness in a face of an abradable layer in a fan casing is provided. The method includes a step of depositing on the abradable layer a first coating and a second coating covering the first coating. The first and second coatings have respective thicknesses (N1, N2) and a physical appearance that differ from one another. Local appearance of the first coating is indicative of a need for a localized touch-up, and local disappearance of the first coating and the second coating is indicative of a need for a localized replacement of the abradable layer.
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