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公开(公告)号:US20240376017A1
公开(公告)日:2024-11-14
申请号:US18196594
申请日:2023-05-12
Applicant: Raytheon Technologies Corporation
Inventor: Christian X. Campbell , Kathryn S. Read , James T. Roach , Robert A. White, III , Daniel Josiah Whitney
IPC: C04B35/80 , C04B35/628 , C04B35/64 , C04B35/657
Abstract: A method of forming a ceramic matrix composite includes fabricating a space filling insert by assembling the space filling insert from a fibrous ceramic material, placing the space filling insert into a tooling fixture, the tooling fixture having an internal shape complementary to a shape of the insert, and infiltrating the space filling insert with a first ceramic material. The method further includes forming a preform by laying up a plurality of fibrous ceramic plies and inserting the infiltrated space filling insert into a void defined by the plurality of plies. The method further includes infiltrating the preform with a second ceramic material.
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公开(公告)号:US20240375394A1
公开(公告)日:2024-11-14
申请号:US18196592
申请日:2023-05-12
Applicant: Raytheon Technologies Corporation
Inventor: Russell Kim , Jamshid Kavosi , James T. Roach
IPC: B32B37/24 , B32B3/04 , B32B3/12 , B32B7/09 , B32B9/00 , B32B9/04 , B32B38/00 , C04B35/565 , C04B35/80
Abstract: A method of reinforcing a ceramic sandwich structure includes forming a ceramic core, assembling the sandwich structure by disposing the core between and in physical contact with a first panel and a second panel, and weaving a plurality of z-fibers at least partially through a thickness of the sandwich structure.
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公开(公告)号:US12006842B1
公开(公告)日:2024-06-11
申请号:US18328177
申请日:2023-06-02
Applicant: RAYTHEON TECHNOLOGIES CORPORATION
Inventor: Russell Kim , Raymond Surace , James T. Roach , Jonas Banhos
CPC classification number: F01D5/282 , F01D5/147 , F01D5/284 , F05D2240/80 , F05D2250/283 , F05D2300/6033 , F05D2300/612
Abstract: An airfoil for a gas turbine engine includes an airfoil section and a platform that has a non-gaspath side and a gaspath side from which the airfoil section extends. The platform is comprised of a sandwich composite that has first and second ceramic matrix composite (CMC) skins that each include at least one 2-D ceramic fiber ply. The first and second CMC skins are disposed, respectively, on the gaspath side and the non-gaspath side, and there is a cellular core disposed radially between the first and second CMC skins.
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公开(公告)号:US11879351B2
公开(公告)日:2024-01-23
申请号:US17549168
申请日:2021-12-13
Applicant: RAYTHEON TECHNOLOGIES CORPORATION
Inventor: Russell Kim , James T. Roach
Abstract: An assembly for a gas turbine engine according to an aspect of the present disclosure includes a metallic damper including a first contact surface and a gas turbine engine component. The gas turbine engine component includes a main body extending in a first direction between a gaspath surface and a second contact surface. The first and second contact surfaces oppose each other along an interface extending in a second direction. The first and second contact surfaces are dimensioned to contact each other along the interface in a hot assembly state. The main body is established by a composite including fibers in a matrix material. At least some of the fibers are arranged to establish a plurality of cooling passages aligned with the interface relative to the second direction. A method of damping for a gas turbine engine is also disclosed.
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公开(公告)号:US11788419B1
公开(公告)日:2023-10-17
申请号:US17887870
申请日:2022-08-15
Applicant: RAYTHEON TECHNOLOGIES CORPORATION
Inventor: Jonas Banhos , Ravon Venters , Russell Kim , Raymond Surace , James T. Roach
CPC classification number: F01D5/187 , F01D5/282 , F01D5/284 , F05D2240/121 , F05D2240/303 , F05D2300/6033
Abstract: A ceramic matrix composite airfoil includes a high-pressure surface and a low-pressure surface connected at a leading edge and a trailing edge. The high-pressure surface and the low-pressure surface extend from a first end to a second end. A leading edge cooling passage includes an inlet portion, a midspan portion and an outlet portion. A cross-sectional flow area of the midspan portion is less than a cross-sectional flow area of either the inlet portion or the outlet portion.
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公开(公告)号:US20230192568A1
公开(公告)日:2023-06-22
申请号:US17554419
申请日:2021-12-17
Applicant: Raytheon Technologies Corporation
Inventor: Jonas S. Banhos , Russell Kim , James T. Roach
CPC classification number: C04B41/4596 , C04B41/51
Abstract: Disclosed herein is a method of reinforcing a composite comprising determining a location of a first cooling hole in a plurality of plies; where a cooling gas is transported through the cooling hole; disposing a z-fiber in the plurality of plies at a location proximate to where the first cooling hole will be located; where the z-fiber enters the plurality of plies at either an upper surface or a lower surface; and where the z-fiber traverses a portion of the plurality of plies in the z-direction proximate to the first cooling hole; and traverses the plurality of plies in an x or y direction further away from the first cooling hole; where the z-direction is in the thickness direction of the plurality of plies and where the x and y-direction are perpendicular to the z-direction.
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公开(公告)号:US12292193B2
公开(公告)日:2025-05-06
申请号:US18343198
申请日:2023-06-28
Applicant: RAYTHEON TECHNOLOGIES CORPORATION
Inventor: Jonas Banhos , James T. Roach , Russell Kim , Raymond Surace
Abstract: A combustor includes a combustion chamber and a liner that bounds at least a portion of the combustion chamber. The liner includes a first side facing the combustion chamber and a second side facing away from the combustion chamber. The liner is formed of a lay-up of ceramic matrix composite (CMC) plies that have a first CMC ply on the first side, a second CMC ply on the second side, and intermediate CMC plies between the first and second CMC plies. At least one of the intermediate CMC plies has a pattern of voids that define cooling channels in the combustor panel. The cooling channels are bound on lateral channel sides by the at least one of the intermediate CMC plies.
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公开(公告)号:US12196095B2
公开(公告)日:2025-01-14
申请号:US18071121
申请日:2022-11-29
Applicant: Raytheon Technologies Corporation
Inventor: James T. Roach , Jonas Banhos , Russell Kim
Abstract: A gas turbine engine component includes an airfoil body extending between a leading edge and a trailing edge and having a suction wall and a pressure wall. An outer surface of the airfoil body is formed by an outer coat defining around the pressure and suction sides, a leading edge and a trailing edge. An internal cross-rib is formed within a cavity in the airfoil body. The internal cross-rib extends to be secured to the outer coat adjacent the leading edge and the trailing edge, and extending across the internal cavity to form a junction such that the cross-rib is x-shaped. The outer coat and the cross-rib are formed of ceramic matrix composites. A gas turbine engine is also disclosed.
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公开(公告)号:US20240278543A1
公开(公告)日:2024-08-22
申请号:US18571459
申请日:2022-06-17
Applicant: RAYTHEON TECHNOLOGIES CORPORATION
Inventor: James T. Roach , Brendan Michael Lenz , Kathryn Sarah Read
CPC classification number: B32B18/00 , B32B3/26 , B32B5/12 , B32B5/26 , B32B38/08 , B32B2250/20 , B32B2260/023 , B32B2262/105 , B32B2262/106
Abstract: A ceramic matrix composite laminate comprises a ceramic matrix that encapsulates a plurality of layers. Each layer comprises fibers. Each layer comprises a plurality of fill fibers and a plurality of warp fibers or a plurality of bias fibers. The outermost layer contains a different concentration of fibers per unit volume than a layer located near an interior of the ceramic matrix composite laminate. A gradient in the number of fibers exists between the outermost layer and the layer located at the interior of the ceramic matrix composite laminate, or a combination thereof. A combined ceramic matrix composite comprises a plurality of composite laminates; wherein each laminate has a different fiber concentration gradient from another laminate that it is in contact with.
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公开(公告)号:US11905851B2
公开(公告)日:2024-02-20
申请号:US18126556
申请日:2023-03-27
Applicant: Raytheon Technologies Corporation
Inventor: Russell Kim , James T. Roach , Jonas Banhos
CPC classification number: F01D5/282 , F01D5/147 , F01D5/284 , F05D2230/31 , F05D2240/122 , F05D2250/75 , F05D2300/2261 , F05D2300/6012 , F05D2300/6033 , F05D2300/6034
Abstract: A method of forming a ceramic matrix composite airfoil includes forming a fibrous ceramic preform by laying up a plurality of plies to form a hollow core cavity, overwrapping the plurality of plies of the core cavity with a first overwrap layer, weaving together a tows of first free portion and tows of a second free portion of the first overwrap layer to form a cross brace, overwrapping the plurality of plies of the core cavity and the first overwrap layer with a second overwrap layer, and consolidating the first free portion and the second free portion of the first overwrap layer and a third free portion and a fourth free portion of the second overwrap layer to form a trailing edge.
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