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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: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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公开(公告)号:US11905847B1
公开(公告)日:2024-02-20
申请号:US17970917
申请日:2022-10-21
Applicant: RAYTHEON TECHNOLOGIES CORPORATION
Inventor: Jonas Banhos , James T. Roach , Cheng Gao
CPC classification number: F01D5/147 , F01D5/18 , F01D5/282 , F01D9/041 , F05D2220/32 , F05D2230/20 , F05D2240/12 , F05D2240/30 , F05D2300/603
Abstract: An airfoil includes an airfoil wall that has a span between first and second radial ends and that defines leading and trailing edges, pressure and suction sides each joining the leading and trailing edges, and an internal cavity. The internal cavity is divided into at least first and second sub-cavities extending over the span. The first sub-cavity defines a venturi tube.
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