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公开(公告)号：US20190232547A1
公开(公告)日：2019-08-01
申请号：US15880818
申请日：2018-01-26
CPC分类号： B29C53/083 , B29C53/82 , B29K2101/12 , B29L2023/22
摘要： A method of making a 3D tube and the 3D tube made thereby. The method comprises: inserting a deflated pre-formed bladder into the 3D tube; and inflating the pre-formed bladder to deform the 3D tube and make the 3D tube have a substantially similar shape as that of the pre-formed bladder inflated.
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公开(公告)号：US20190111636A1
公开(公告)日：2019-04-18
申请号：US15786804
申请日：2017-10-18
摘要： Methods for manufacturing composite components having complex geometries are provided. In one exemplary aspect, a method includes laying up each of a plurality of laminates to an initial shape with a substantially planar geometry or a gently curved geometry. Then, a laid up laminate is formed to a final shape for each predefined section defined by the composite component to be manufactured. Thereafter, the laminates formed to their respective final shapes are stacked to build up the complex geometry of the composite component. Next, the composite component can be cured and finish machined as necessary to form the completed composite component.
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公开(公告)号：US11915679B2
公开(公告)日：2024-02-27
申请号：US17540341
申请日：2021-12-02
发明人： Wendy Wenling Lin , Michael Moses Martinez , Rudramuni Kariveerappa Majjigi , David Patrick Calder , Aaron Goldsholl
IPC分类号： G10K11/172 , G10K11/168 , B32B3/12 , B32B7/12
CPC分类号： G10K11/172 , B32B3/12 , B32B7/12 , G10K11/168 , B32B2305/022 , B32B2305/024 , B32B2307/102
摘要： An acoustic liner is provided. The acoustic liner includes a face sheet, a back sheet spaced from the face sheet, and a core layer defining a cellular structure disposed between the face sheet and the back sheet. The core layer includes a plurality of first resonant cells coupled to the back sheet. Each of the first resonant cells includes a first cell wall coupled to the back sheet along a first cell wall base edge, the first cell wall extending from the back sheet toward the face sheet, the first cell wall further coupled to the face sheet along a first cell wall top edge, wherein the first cell wall of each of the first resonant cells comprises a surface extension that extends from a surface of the first cell wall.
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公开(公告)号：US20220389882A1
公开(公告)日：2022-12-08
申请号：US17338073
申请日：2021-06-03
发明人： Wendy Wenling Lin , David Herman , Trevor Howard Wood , Nikolai N. Pastouchenko , Kishore Ramakrishnan , Timothy Richard DePuy , Robert William Davidoff
IPC分类号： F02K1/82 , G10K11/172 , F03D80/00 , G10K11/16
摘要： An acoustic core may include an array of resonant cells configured as a plurality of resonant cell groups. The resonant cell groups may include a plurality of resonant cells configured as a partitioned resonant cell that include a converging resonant cell and a diverging resonant cell. The converging resonant cell and the diverging resonant cell may be defined by a plurality of cell walls integrally formed with one another and a partition integrally formed with the plurality of cell walls. The partition may at least partially delimit the converging resonant cell from the diverging resonant cell. The converging resonant cell may define an upper resonant space delimited by the partition and a top face of the array of resonant cells. The diverging resonant cell may define a lower resonant space delimited by the partition and a bottom face of the array of resonant cells.
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公开(公告)号：US11207821B2
公开(公告)日：2021-12-28
申请号：US15880818
申请日：2018-01-26
摘要： A method of making a 3D tube and the 3D tube made thereby. The method comprises: inserting a deflated pre-formed bladder into the 3D tube; and inflating the pre-formed bladder to deform the 3D tube and make the 3D tube have a substantially similar shape as that of the pre-formed bladder inflated.
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公开(公告)号：US20210256947A1
公开(公告)日：2021-08-19
申请号：US16791579
申请日：2020-02-14
IPC分类号： G10K11/172 , F02C7/045 , F02K1/34 , B29C64/153
摘要： Acoustic cores and methods for forming and for assembling acoustic cores are provided. For example, an acoustic core of a gas turbine engine comprises a first attenuation section having a first plurality of attenuation members and a first mating wall having a planar first mating surface. The first mating wall is integrally formed with at least a portion of the first plurality of attenuation members and defines a portion of a perimeter of the first attenuation section. A method for forming an acoustic core comprises additively manufacturing a first attenuation section of the acoustic core, which comprises a first plurality of attenuation members and a first mating wall that are integrally formed as a single unit. A method for assembling an acoustic core comprises applying an adhesive to mating surfaces of first and second attenuation sections and pressing together the mating surfaces to join the first and second attenuation sections.
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公开(公告)号：US20190272812A1
公开(公告)日：2019-09-05
申请号：US16415754
申请日：2019-05-17
发明人： Wendy Wenling Lin , Michael Moses Martinez , Rudramuni Kariveerappa Majjigi , David Patrick Calder , Aaron Goldsholl
IPC分类号： G10K11/172 , B32B3/12 , B32B7/12 , G10K11/168
摘要： An acoustic liner and a method of attenuating noise are provided. The acoustic liner includes a face sheet, a back sheet spaced from the face sheet, and a core layer extending between the face sheet and the back sheet. The core layer includes a plurality of resonant cells, each resonant cell including at least one cell wall coupled to the back sheet along a cell wall base edge. The at least one cell wall extends from the back sheet at an angle toward the face sheet. The at least one cell wall further coupled to the face sheet along a cell wall top edge. The resonant cell is formed in a predetermined shape and contains a volume in a space defined by the at least one cell wall, the back sheet, and the face sheet. The cell wall base edge length is greater than the cell wall top edge length.
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公开(公告)号：US20180320706A1
公开(公告)日：2018-11-08
申请号：US15586662
申请日：2017-05-04
发明人： Nitesh Jain , Sujana Chandrasekar , Ramkrishna Maripalli , Nicholas Joseph Kray , Wendy Wenling Lin
CPC分类号： F04D29/388 , B32B5/02 , B32B37/14 , B32B2262/103 , B32B2262/106 , B32B2305/076 , B32B2605/18 , F02C3/04 , F04D29/325 , F05D2220/32 , F05D2300/171 , F05D2300/174 , F05D2300/177 , F05D2300/6032
摘要： A laminated composite airfoil assembly includes a first lamina formed of a pre-preg material including metal fibers, and at least a second lamina formed of a pre-preg material including at least one of metal fibers intermixed with carbon fibers, only metal fibers, only carbon fibers, a substrate including metal fibers, a substrate including carbon fibers, and combinations thereof.
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公开(公告)号：US11833779B2
公开(公告)日：2023-12-05
申请号：US16953970
申请日：2020-11-20
IPC分类号： B32B15/08 , B32B15/20 , B32B15/14 , B32B27/32 , C09J7/35 , C09J163/00 , C09J133/08 , F04D29/42 , B32B27/08 , B32B27/18 , B32B7/12
CPC分类号： B32B15/08 , B32B7/12 , B32B15/14 , B32B15/20 , B32B27/08 , B32B27/18 , B32B27/32 , C09J7/35 , C09J133/08 , C09J163/00 , F04D29/4226 , B32B2250/03 , B32B2250/04 , B32B2255/26 , B32B2307/31 , B32B2307/7265 , B32B2311/24 , B32B2313/04 , B32B2323/04 , B32B2323/10 , B32B2363/00 , B32B2367/00 , B32B2603/00 , F05D2300/603
摘要： A coated component having a composite substrate and a coating system disposed thereon is provided. The coating system is substantially non-porous such that hydrocarbon fuel or other carbonaceous fluids are prevented from contacting and impregnating the polymer matrix composite material. The coating system can include an aluminum layer or a film layer comprising a polyethylene film or a polypropylene film. Also provided is a composite fan casing for a gas turbine engine having a polymer matrix composite substrate and a coating system disposed thereon. Methods for forming a containment assembly of a gas turbine engine are provided.
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公开(公告)号：US20230020608A1
公开(公告)日：2023-01-19
申请号：US17375433
申请日：2021-07-14
IPC分类号： F01D5/28
摘要： A fan platform for gas turbine engine is provided. The fan platform incudes a body portion and a flow path surface coupled to the body portion. The body portion and the flow path surface define at least a portion of a flow path extending through the engine. The body portion and/or the flow path surface include an impact region including hybrid composite plies including one or more metallic tows. A gas turbine engine including the fan platform and methods for forming the fan platform are also disclosed.
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