公开(公告)号：US12173431B2

公开(公告)日：2024-12-24

申请号：US18082819

申请日：2022-12-16

Applicant: Raytheon Technologies Corporation

Inventor： Olivier H. Sudre ,  Sarah Annette Frith ,  John E. Holowczak ,  Mary Colby ,  Ying She ,  Kathryn S. Read

IPC: D02J1/18 ,  D02J1/16 ,  D03D13/00 ,  D03D15/242 ,  D06C29/00

Abstract: A method of spreading fiber tows includes applying a coupling medium to a surface of a fibrous structure, positioning an ultrasonic probe adjacent to the surface of a fibrous structure, such that a tip of the ultrasonic probe is in contact with the coupling medium, moving at least one of the ultrasonic probe and the fabric structure relative to the other of the ultrasonic probe and the fibrous structure according to a first pattern, and imparting ultrasonic vibration with the ultrasonic probe to the surface of the fibrous structure while moving the ultrasonic probe along the surface of the fibrous structure. Imparting ultrasonic vibration to the surface of the fibrous structure spreads tows of the fibrous structure.

公开(公告)号：US20230193525A1

公开(公告)日：2023-06-22

申请号：US18082819

申请日：2022-12-16

Applicant: Raytheon Technologies Corporation

Inventor： Olivier H. Sudre ,  Sarah Annette Frith ,  John E. Holowczak ,  Mary Colby ,  Ying She ,  Kathryn S. Read

IPC: D02J1/18 ,  D02J1/16 ,  D03D13/00 ,  D03D15/242

CPC classification number: D02J1/18 ,  D02J1/16 ,  D03D13/00 ,  D03D15/242

Abstract: A method of spreading fiber tows includes applying a coupling medium to a surface of a fibrous structure, positioning an ultrasonic probe adjacent to the surface of a fibrous structure, such that a tip of the ultrasonic probe is in contact with the coupling medium, moving at least one of the ultrasonic probe and the fabric structure relative to the other of the ultrasonic probe and the fibrous structure according to a first pattern, and imparting ultrasonic vibration with the ultrasonic probe to the surface of the fibrous structure while moving the ultrasonic probe along the surface of the fibrous structure. Imparting ultrasonic vibration to the surface of the fibrous structure spreads tows of the fibrous structure.

公开(公告)号：US20230193467A1

公开(公告)日：2023-06-22

申请号：US17558887

申请日：2021-12-22

Applicant: Raytheon Technologies Corporation

Inventor： John J. Gangloff, JR. ,  John E. Holowczak ,  Ying She ,  Kenneth David Smith ,  Haralambos Cordatos ,  Gurkan Gok ,  Zissis A. Dardas

IPC: C23C16/54 ,  C23C16/511

CPC classification number: C23C16/545 ,  C23C16/511

Abstract: A reactor furnace for coating fiber tow includes an elongate reactor having a fiber tow inlet and a fiber tow outlet; a thermo-chemical reactor section positioned along the elongate reactor; a first microwave source for directing microwave energy along the reactor from a first end of the reactor toward a second end of the reactor; a second microwave source for directing microwave energy along the reactor from the second end of the reactor toward the first end of the reactor; a gas inlet upstream of the thermo-chemical reactor; and a gas outlet downstream of the thermo-chemical reactor.

公开(公告)号：US20210348517A1

公开(公告)日：2021-11-11

申请号：US16870310

申请日：2020-05-08

Applicant: Raytheon Technologies Corporation

Inventor： Paul F. Croteau ,  John E. Holowczak ,  Thomas J. Martin ,  Paul Attridge

IPC: F01D9/06 ,  F01D9/02 ,  F01D25/12

Abstract: An airfoil includes an airfoil section that has an airfoil wall that surrounds a cavity. The airfoil wall includes a first wall section comprised of a monolithic ceramic shell, a second wall section comprised of a CMC liner that is bonded along an interface to an interior side of the monolithic ceramic shell, and a ceramic barrier coating that is bonded to an exterior side of the monolithic ceramic shell. The airfoil wall includes at least one of: inter-section cooling channels that extend along the interface and are bounded by the monolithic ceramic shell and the CMC liner, or intra-section cooling channels that extend within the CMC liner.

公开(公告)号：US20210332705A1

公开(公告)日：2021-10-28

申请号：US16859198

申请日：2020-04-27

Applicant: Raytheon Technologies Corporation

Inventor： Thomas J. Martin ,  John E. Holowczak ,  Matthew B. Kennedy ,  Paul F. Croteau ,  Paul Attridge

IPC: F01D5/14 ,  F01D5/28

Abstract: An airfoil includes an airfoil section that has an airfoil wall that surrounds a cavity. The airfoil wall includes an exterior monolithic ceramic shell and an interior CMC liner that has CMC plies. An outermost ply of the CMC plies forms tabs that are raised from an underlying ply so as to define a slot. The exterior monolithic ceramic shell includes an underlapping shell piece and an overlapping shell piece. The underlapping shell piece has a portion disposed in the slot and bonded with the tabs. The overlapping shell piece extends over the tabs and is bonded to the tabs. There are channels bounded by adjacent ones of the tabs, the underlapping shell piece, and the overlapping shell piece. Channel orifices through the CMC liner connect the cavity and the channels.

公开(公告)号：US20210164104A1

公开(公告)日：2021-06-03

申请号：US17169696

申请日：2021-02-08

Applicant: RAYTHEON TECHNOLOGIES CORPORATION

Inventor： Ying She ,  John E. Holowczak

IPC: C23C16/54 ,  C04B35/628 ,  C23C16/32 ,  C23C16/34 ,  D02J1/18 ,  C23C16/455

Abstract: A tow coating reactor system includes a reactor for receiving fiber tow, a wedge situated adjacent the reactor and configured to receive the tow at a tip end, such that as the tow moves across the wedge, the wedge spreads the tow into a plurality of sub-tows.

公开(公告)号：US12000049B2

公开(公告)日：2024-06-04

申请号：US17558887

申请日：2021-12-22

Applicant: Raytheon Technologies Corporation

Inventor： John J. Gangloff, Jr. ,  John E. Holowczak ,  Ying She ,  Kenneth David Smith ,  Haralambos Cordatos ,  Gurkan Gok ,  Zissis A. Dardas

IPC: C23C16/54 ,  C23C16/511 ,  H01J37/32

CPC classification number: C23C16/545 ,  C23C16/511 ,  H01J37/32192 ,  H01J37/3277

Abstract: A reactor furnace for coating fiber tow includes an elongate reactor having a fiber tow inlet and a fiber tow outlet; a thermo-chemical reactor section positioned along the elongate reactor; a first microwave source for directing microwave energy along the reactor from a first end of the reactor toward a second end of the reactor; a second microwave source for directing microwave energy along the reactor from the second end of the reactor toward the first end of the reactor; a gas inlet upstream of the thermo-chemical reactor; and a gas outlet downstream of the thermo-chemical reactor.

公开(公告)号：US11286783B2

公开(公告)日：2022-03-29

申请号：US16859198

申请日：2020-04-27

Applicant: Raytheon Technologies Corporation

Inventor： Thomas J. Martin ,  John E. Holowczak ,  Matthew B. Kennedy ,  Paul F. Croteau ,  Paul Attridge

IPC: F01D5/14 ,  F01D5/28

Abstract: An airfoil includes an airfoil section that has an airfoil wall that surrounds a cavity. The airfoil wall includes an exterior monolithic ceramic shell and an interior CMC liner that has CMC plies. An outermost ply of the CMC plies forms tabs that are raised from an underlying ply so as to define a slot. The exterior monolithic ceramic shell includes an underlapping shell piece and an overlapping shell piece. The underlapping shell piece has a portion disposed in the slot and bonded with the tabs. The overlapping shell piece extends over the tabs and is bonded to the tabs. There are channels bounded by adjacent ones of the tabs, the underlapping shell piece, and the overlapping shell piece. Channel orifices through the CMC liner connect the cavity and the channels.

公开(公告)号：US20240270652A1

公开(公告)日：2024-08-15

申请号：US18108929

申请日：2023-02-13

Applicant: Raytheon Technologies Corporation

Inventor： John E. Holowczak

IPC: C04B35/622 ,  C04B35/628 ,  C04B41/45 ,  C23C16/455

CPC classification number: C04B35/62281 ,  C04B35/62868 ,  C04B35/62876 ,  C04B41/4578 ,  C23C16/45525 ,  C04B2235/386 ,  C04B2235/408 ,  C04B2235/5244 ,  C04B2235/614 ,  C04B2235/76

Abstract: A method of forming a ceramic matrix composite includes arranging a plurality of fibers into a preform, each of the plurality of fibers being formed from silicon carbide, depositing a nucleating layer on the plurality of fibers, the nucleating layer comprising a crystalline material having an a-lattice constant and a c-lattice constant, and depositing a boron nitride layer on the nucleating layer. The c-lattice constant of the crystalline material of the nucleating layer corresponds to an a-lattice constant of the silicon carbide, such that the c-lattice constant of the crystalline material is within 3.0% of the a-lattice constant of the silicon carbide.

公开(公告)号：US20240173743A1

公开(公告)日：2024-05-30

申请号：US18071055

申请日：2022-11-29

Applicant: Raytheon Technologies Corporation

Inventor： Brian T. Hazel ,  Robert A. White, III ,  Daniel S. Rogers ,  John E. Holowczak

IPC: B05D3/12

CPC classification number: B05D3/12 ,  F01D11/00 ,  F05D2230/10 ,  F05D2230/90 ,  F05D2300/6033

Abstract: A method of coating a seal slot according to an exemplary embodiment of this disclosure, among other possible things includes applying a coating to a slot in a component and machining the coating to provide an open width configured to receive a seal. after the applying, the slot has an initial open width that is smaller than the open width after the machining. A method of forming a sealing assembly is also disclosed.