公开(公告)号：US20240271537A1

公开(公告)日：2024-08-15

申请号：US18169176

申请日：2023-02-14

Applicant: RAYTHEON TECHNOLOGIES CORPORATION

Inventor： Timothy J. Harding ,  Robert A. White, III ,  John E. Holowczak

IPC: F01D5/26 ,  F01D5/28

CPC classification number: F01D5/26 ,  F01D5/282 ,  F01D5/284 ,  F05D2220/32 ,  F05D2230/10 ,  F05D2230/31 ,  F05D2240/80 ,  F05D2260/96 ,  F05D2300/6033

Abstract: A gas turbine engine blade includes a platform, an airfoil section extending from the platform in a first direction, a mount extending from the platform in a second direction opposite the first direction, and a damper deposited on one of the platform, the airfoil section, and the mount. A method of sizing a damper for a gas turbine engine blade is also disclosed.

公开(公告)号：US20230407469A1

公开(公告)日：2023-12-21

申请号：US17843128

申请日：2022-06-17

Applicant: Raytheon Technologies Corporation

Inventor： Ying She ,  John E. Holowczak ,  John J. Walker ,  Steven W. Gronda

IPC: G01M3/20 ,  C23C16/54 ,  C23C16/44

CPC classification number: G01M3/20 ,  C23C16/545 ,  C23C16/4408

Abstract: A system for chemical vapor deposition coating of fiber tows includes a coater having a housing having a tow entrance and a tow exit and defining an interior space, the coater further having a process gas inlet and a process gas outlet; at least one of an entrance side marker gas inlet at the tow entrance and an exit side marker gas inlet at the tow exit; and at least one of an entrance side detection probe upstream of the entrance side marker gas inlet, and an exit side detection probe downstream of the exit side marker gas inlet, the at least one entrance side detection probe and exit side detection probe being configured to detect marker gas. A method is also disclosed.

公开(公告)号：US12270107B2

公开(公告)日：2025-04-08

申请号：US18204799

申请日：2023-06-01

Applicant: Raytheon Technologies Corporation

Inventor： Ying She ,  John E. Holowczak

IPC: C23C16/54 ,  C04B35/628 ,  C23C16/32 ,  C23C16/34 ,  C23C16/455 ,  D02J1/18 ,  B65H57/16 ,  B65H57/18

Abstract: A method for coating a fiber tow includes moving a fiber tow across a wedge to separate the fiber tow into a plurality of sub-tows, and coating the plurality of sub-tows.

公开(公告)号：US20230304157A1

公开(公告)日：2023-09-28

申请号：US18204799

申请日：2023-06-01

Applicant: Raytheon Technologies Corporation

Inventor： Ying She ,  John E. Holowczak

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

CPC classification number: C23C16/54 ,  C04B35/62884 ,  C23C16/325 ,  C04B35/62844 ,  C23C16/342 ,  C23C16/545 ,  C04B35/62878 ,  D02J1/18 ,  C04B35/62868 ,  C23C16/455 ,  C04B2235/5244 ,  C04B2235/524 ,  C04B2235/5264 ,  C04B2235/5228 ,  C04B2235/5224 ,  B65H57/16

Abstract: A method for coating a fiber tow includes moving a fiber tow across a wedge to separate the fiber tow into a plurality of sub-tows, and coating the plurality of sub-tows.

公开(公告)号：US11697878B2

公开(公告)日：2023-07-11

申请号：US17169696

申请日：2021-02-08

Applicant: RAYTHEON TECHNOLOGIES CORPORATION

Inventor： Ying She ,  John E. Holowczak

IPC: B65H57/16 ,  C23C16/54 ,  D02J1/18 ,  C04B35/628 ,  C23C16/32 ,  C23C16/34 ,  C23C16/455 ,  B65H57/18

CPC classification number: C23C16/54 ,  C04B35/62844 ,  C04B35/62868 ,  C04B35/62878 ,  C04B35/62884 ,  C23C16/325 ,  C23C16/342 ,  C23C16/455 ,  C23C16/545 ,  D02J1/18 ,  B65H57/16 ,  B65H57/18 ,  C04B2235/524 ,  C04B2235/5224 ,  C04B2235/5228 ,  C04B2235/5244 ,  C04B2235/5264

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：US20230192560A1

公开(公告)日：2023-06-22

申请号：US18082770

申请日：2022-12-16

Applicant: Raytheon Technologies Corporation

Inventor： Shaun M. Enos ,  Kathryn S. Read ,  James T. Beals ,  Robin H. Fernandez ,  John E. Holowczak

IPC: C04B35/80 ,  F26B5/06 ,  D06M23/00 ,  D06M13/248 ,  D06M13/432 ,  C04B35/626 ,  C04B35/638

CPC classification number: C04B35/80 ,  C04B35/638 ,  C04B35/62655 ,  C04B35/62675 ,  D06M13/248 ,  D06M13/432 ,  D06M23/00 ,  F26B5/06 ,  D06M2200/00

Abstract: A method of spreading fiber tows includes assembling a fibrous composite from a plurality of tows, applying an aqueous solution to the fibrous composite, freezing the fibrous composite after applying the aqueous solution, freeze drying the fibrous composite to remove water from the fibrous composite, and heating the fibrous composite after freeze drying to remove a cryoprotectant from the fibrous composite. The aqueous solution comprises water and the cryoprotectant and freezing the fibrous composite spreads filaments within the plurality of fiber tows.

公开(公告)号：US11203947B2

公开(公告)日：2021-12-21

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: F01D9/02 ,  F01D9/06 ,  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.