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公开(公告)号：US20240262054A1
公开(公告)日：2024-08-08
申请号：US18692692
申请日：2022-09-06
CPC分类号： B29C70/48 , B29C53/821 , B29L2031/7504
摘要： Mold intended to be used for the manufacture of a gas turbine fan casing made of composite material including: a mandrel on which a fibrous preform of a fan casing is intended to be wound said preform comprising an annular wall the profile of the outer surface of which corresponds to that of the inner surface of the casing to be manufactured and two side flasks the profiles of which correspond to those of outer flanges of the casing to be manufactured; a plurality of angular counter-mold sectors assembled in a sealed manner on the mandrel and intended to close the mold and to compact a fibrous preform wound on the mandrel; and at least one compacting wedge, the wedge being placed between the fibrous preform wound on the mandrel and the associated angular counter-mold sector.
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2.发明授权公开(公告)号：US11969962B2
公开(公告)日：2024-04-30
申请号：US17032035
申请日：2020-09-25
CPC分类号： B29C73/025 , B29C73/12 , B29L2031/7504 , F01D5/282
摘要： A method for repairing composite components includes positioning repair material within a repair region of a composite component formed of a composite material. Furthermore, the method includes heating the repair region to a first temperature. Additionally, the method includes heating a remaining portion of the composite component to a second temperature. Moreover, the method includes melt infiltrating the repair region with an infiltrant to densify the repair material. The first temperature is at or above a melting point of the infiltrant and the second temperature is less than the melting point.
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3.发明授权公开(公告)号：US11890822B2
公开(公告)日：2024-02-06
申请号：US17622033
申请日：2020-06-18
CPC分类号： B29C70/30 , B32B3/085 , B32B5/024 , B32B5/263 , D03D1/00 , D03D25/005 , F02C7/00 , B29L2031/7504 , B32B2250/20 , B32B2255/02 , B32B2260/023 , B32B2260/046 , B32B2262/0269 , B32B2262/101 , B32B2262/105 , B32B2262/106 , B32B2605/18 , F05D2220/32 , F05D2300/603 , F05D2300/6012 , F05D2300/614
摘要： A process for manufacturing a cylindrical composite component comprises includes producing a fibrous texture in the form of a strip by three-dimensional or multi-layer weaving, winding the fibrous texture on several superimposed lathes on a mandrel with a profile corresponding to that of the component to be manufactured so as to form a fibrous preform, densifying the fibrous preform by a matrix. When the fibrous texture is wound on the mandrel, a web including a fugitive material filled with carbon nanotubes is interposed between the adjacent turns of the fibrous texture.
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公开(公告)号：US11885264B2
公开(公告)日：2024-01-30
申请号：US17333085
申请日：2021-05-28
发明人： Wendy Wenling Lin , Shanmugam Murugappan , Robert William Davidoff , Graham Frank Howarth , Andrew Michael Roach
IPC分类号： F02C7/045 , F02K1/82 , B64D33/02 , G10K11/172 , B33Y80/00 , B33Y10/00 , B29C64/10 , B28B1/00 , B23P15/00 , B22F10/14 , B22F10/18 , B22F10/25 , B22F10/28 , B29L31/00 , B22F10/12
CPC分类号： F02C7/045 , B22F10/14 , B22F10/18 , B22F10/25 , B22F10/28 , B23P15/008 , B28B1/001 , B29C64/10 , B33Y10/00 , B33Y80/00 , B22F10/12 , B29K2995/0002 , B29L2031/7504 , F05D2220/323 , F05D2230/31 , F05D2230/50 , F05D2240/14 , F05D2260/96 , Y10T29/49323
摘要： An acoustic core has a plurality of cell walls formed of an additive-manufacturing material and a resonant space defined by the plurality of cell walls. At least some of the resonant cells have sound-attenuating protuberances formed of an excess amount of the additive-manufacturing material having been intentionally introduced to the cell walls and protruding into the resonant space with a semi-random orientation and/or size.
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公开(公告)号：US11840986B2
公开(公告)日：2023-12-12
申请号：US16857487
申请日：2020-04-24
申请人： The Boeing Company
发明人： Kevin O'Brien Gaw , Dylan E. Jones , Michael H. Larson , Belur N. Shivashankara , Randy J. Grove , David John Barene , Jeston Lingelbach , Kory Shaffer , David W. Foutch
IPC分类号： F02K1/62 , F02K1/70 , B29C43/18 , B29C65/02 , B29C65/48 , B29C65/00 , B29K101/12 , F02K1/72 , B29L31/00
CPC分类号： F02K1/70 , B29C43/18 , B29C65/02 , B29C65/48 , B29C66/7254 , B29C2043/189 , B29K2101/12 , B29L2031/7504 , F02K1/625 , F02K1/72 , F05D2220/32 , F05D2230/23 , F05D2230/60 , F05D2250/283 , F05D2260/96 , F05D2300/43 , F05D2300/432 , F05D2300/433 , F05D2300/434 , F05D2300/436
摘要： A blocker door assembly for use in a gas turbine includes a panel, a core integrally formed with the panel, and a plurality of mounting structures extending from at least one of the panel and the core. The plurality of mounting structures are integrally formed with the core and the panel such that the panel, the core, and the mounting structures are co-molded from a thermoplastic material.
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6.发明公开公开(公告)号：US20230364868A1
公开(公告)日：2023-11-16
申请号：US18245199
申请日：2021-09-09
申请人： SAFRAN
CPC分类号： B29C70/70 , B29C70/222 , B29C70/462 , F02K1/54 , B29L2031/7504
摘要： A method for manufacturing a composite material part having a cellular structure that includes at least one cell delimited by walls. The method includes supplying at least a first core, providing a web of a first fibrous reinforcement comprising a plurality of long discontinuous fibers randomly distributed in a plane, and producing at least one strip of the first fibrous reinforcement. The method further includes producing a second fibrous reinforcement in the shape of a sock, inserting the first core into the sock, draping the strip around the sock containing the first core, placing the sock containing the first core and the wrapped strip in a mold, and thermocompression.
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公开(公告)号：US11780184B2
公开(公告)日：2023-10-10
申请号：US17245524
申请日：2021-04-30
CPC分类号： B29C70/544 , B29C70/342 , B29L2031/7504 , F23R2900/00018
摘要： Methods and apparatus for securing an autoclave bag to a composite fixture are disclosed. An example apparatus includes a flange sealing device including a forward flange at a first end and an aft flange at a second end, and a composite fixture including a forward groove to locate and seal with the forward flange of the flange sealing device to affix an autoclave bag, an aft groove to locate and seal with the aft flange of the flange sealing device to affix the autoclave bag, and an aft locating ring to position the autoclave bag.
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公开(公告)号：US20230311433A1
公开(公告)日：2023-10-05
申请号：US18000888
申请日：2021-06-15
CPC分类号： B29C70/541 , B29C70/32 , B29C70/545 , B29L2031/7504
摘要： Method for producing a casing made of a composite material for an aircraft turbine engine, the casing having an annular shape and including an annular fibrous preform formed by winding a fibrous cloth soaked in a polymer matrix, the method including the steps of: a) positioning an edge of the cloth on a molding drum, this cloth having a generally elongate shape and the edge being located at a first longitudinal end of the cloth, b) winding the cloth on the drum, over at least one rotation, so as to obtain the preform wound around the drum, c) molding of the preform and hardening of the resin which is injected into the preform or pre-impregnated on the preform, wherein the method includes, before step a), a step i) of mounting a removable stop on the drum, and in that step a) includes abutting the edge against this stop.
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公开(公告)号：US20180333947A1
公开(公告)日：2018-11-22
申请号：US15983552
申请日：2018-05-18
IPC分类号： B32B43/00
CPC分类号： B32B43/006 , B29C63/0013 , B29L2031/7504 , B32B38/0036 , B32B38/10 , B32B2305/08 , B32B2305/188 , B32B2311/24 , B32B2311/30 , B32B2377/00 , B32B2605/18 , B64D27/16 , B64D29/00 , F01D21/045 , F01D25/005 , F01D25/24 , F01D25/285 , F02C7/04 , F05D2230/80 , F05D2300/603 , F05D2300/701
摘要： Methods for removing a fiber-reinforced wrap from a fan casing are provided. The method may include heating the fiber-reinforced wrap while on a metal support (e.g., aluminum, steel, etc.) of the fan casing, unwinding a layer of the fiber-reinforced wrap from the fan casing, and winding the layer of the fiber-reinforced wrap onto a collection drum. The fiber-reinforced wrap may heated to a temperature of about 120° C. to about 200° C. (e.g., about 125° C. to about 185° C.). Systems are also generally provided for removing a fiber-reinforced wrap from a fan casing.
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公开(公告)号：US20180236731A1
公开(公告)日：2018-08-23
申请号：US15436344
申请日：2017-02-17
发明人： Arunkumar Natarajan , Carlos Bonilla Gonzalez , Vadim Bromberg , Jeffrey Jon Schoonover , Srikanth Chandrudu Kottilingam , Prabhjot Singh , Kwok Pong Chan
CPC分类号： B22F3/1021 , B22F3/008 , B22F2999/00 , B28B1/001 , B28B11/243 , B29C64/153 , B29C64/40 , B29K2505/08 , B29K2509/02 , B29L2031/7504 , B33Y10/00 , B33Y40/00 , B22F5/10 , B22F2003/1058
摘要： A method of binder jet printing a part includes depositing a layer of a powder on a working surface and selectively printing a binder solution comprising a binder into the layer of powder in a first pattern to generate a printed layer. The pattern is representative of a structure of a layer of the part. The method also includes selectively printing a channel support agent solution comprising a channel support agent into the layer of powder to generate a green body. The channel support agent is selectively printed in a second pattern representative of an internal channel of the part. The method further includes heating the green body part above a first temperature to remove the binder and generate a brown body part and heating the brown body part above a second temperature to sinter the powder to generate the part having the internal channel generated from removal of the channel support agent.
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