公开(公告)号：US20240117754A1

公开(公告)日：2024-04-11

申请号：US17961987

申请日：2022-10-07

Applicant: Raytheon Technologies Corporation

Inventor： Connor C. Perry ,  Xiaomei Fang ,  Bradley L. Paquin ,  Jacob Yochimowitz ,  Sushruth G. Kamath ,  Jun Cao

IPC: F01D25/00 ,  F01D9/02 ,  F01D25/08 ,  F01D25/14

CPC classification number: F01D25/005 ,  F01D9/02 ,  F01D25/08 ,  F01D25/145 ,  F05D2220/32 ,  F05D2230/31 ,  F05D2240/10 ,  F05D2240/128 ,  F05D2240/14 ,  F05D2240/15 ,  F05D2260/231 ,  F05D2300/211

Abstract: A gas turbine engine component includes a structural component having a surface, the structural component having an organic matrix composite material; and a cured thermal barrier layer on the surface, wherein the cured thermal barrier layer is a pre-ceramic layer including inorganic matrix containing silicon oxides reinforced with glass or quartz fibers.

公开(公告)号：US11578604B2

公开(公告)日：2023-02-14

申请号：US17185010

申请日：2021-02-25

Applicant: Raytheon Technologies Corporation

Inventor： Xiaomei Fang ,  John D Riehl ,  George Alan Salisbury

IPC: F01D5/28 ,  B23K26/352 ,  F01D9/04 ,  B29C65/00 ,  C09J5/02

Abstract: The present disclosure provides methods and systems for composite-to-metal hybrid bonded structures compromising the laser surface treatment on titanium alloys to promote adhesive bond performance. For example, a computer may be programmed to set a laser path corresponding to a predetermined geometric pattern. A laser may be coupled to the computer and apply a pulsed laser beam to a contact surface of the titanium alloy along the predefined geometric pattern. The laser may generate an open pore oxide layer on the contact surface of the substrate with a thickness of 100 and 500 nm. The open pore oxide layer may have a topography corresponding to the predefined geometric pattern. The topography may contain high degree of open pore structure and promote adhesive bond performance. Adhesive, primer or composite resin matrix may fully infiltrate into the open pore structures. Adhesive and composite laminate may co-cure to form composite-to-titanium hybrid bonded structures.

公开(公告)号：US20240418088A1

公开(公告)日：2024-12-19

申请号：US18336933

申请日：2023-06-16

Applicant: RAYTHEON TECHNOLOGIES CORPORATION

Inventor： Xiaomei Fang ,  Jakob Reed

IPC: F01D5/00 ,  B05D3/14 ,  F01D5/28

Abstract: A repair process includes providing a gas turbine engine article that has an elastomeric coating that has an eroded region, plasma etching the elastomeric coating in the eroded region, and applying an elastomeric repair coating on the eroded region.

公开(公告)号：US20240175370A1

公开(公告)日：2024-05-30

申请号：US17994188

申请日：2022-11-25

Applicant: RAYTHEON TECHNOLOGIES CORPORATION

Inventor： Calvin Jay Winder ,  Fadi S. Maalouf ,  Matthew E. Bintz ,  Peter T. Schutte ,  Pieter Van Lieu ,  Justin Roger DeLarm ,  Anna Lauren Wright ,  Hamidreza Mohseni ,  David R. Lyders ,  Xiaomei Fang

IPC: F01D11/00 ,  C04B35/628 ,  C04B35/83 ,  F02C7/28

CPC classification number: F01D11/003 ,  C04B35/62873 ,  C04B35/83 ,  F02C7/28 ,  C04B2235/422 ,  C04B2235/5248 ,  C04B2235/5252 ,  F05D2220/32 ,  F05D2230/10 ,  F05D2240/55

Abstract: A gas turbine engine includes a rotor that that has a seal surface, a shaft that has an annular seal channel that opens to the seal surface, and a seal disposed in the annular seal channel for sealing against the seal surface. The seal is made of a composite having carbon fibers disposed in a carbon matrix.

公开(公告)号：US20230243269A1

公开(公告)日：2023-08-03

申请号：US17587246

申请日：2022-01-28

Applicant: RAYTHEON TECHNOLOGIES CORPORATION

Inventor： Zhigang Wang ,  Tahany El-Wardany ,  Xia Tang ,  Gajawalli V. Srinivasan ,  Anthony G. Ruglio ,  Xiaomei Fang

IPC: F01D5/28 ,  F01D25/24

CPC classification number: F01D5/288 ,  F01D25/24 ,  F05D2250/185 ,  F05D2250/184 ,  F05D2300/611

Abstract: A gas turbine engine article includes a substrate that has a pre-bond surface that includes a serpentine groove. A coating is disposed on the pre-bond surface and mechanically interlocks with the serpentine groove.

公开(公告)号：US12116905B2

公开(公告)日：2024-10-15

申请号：US18093613

申请日：2023-01-05

Applicant: Raytheon Technologies Corporation

Inventor： Xiaomei Fang ,  John D Riehl ,  George Alan Salisbury

IPC: F01D5/28 ,  B23K26/352 ,  F01D9/04 ,  B29C65/00 ,  C09J5/02

CPC classification number: F01D5/282 ,  B23K26/355 ,  B23K26/3568 ,  B23K26/3584 ,  F01D9/041 ,  B29C66/022 ,  C09J5/02 ,  F05D2230/13 ,  F05D2240/12 ,  F05D2300/174 ,  F05D2300/603

Abstract: The present disclosure provides methods and systems for composite-to-metal hybrid bonded structures compromising the laser surface treatment on titanium alloys to promote adhesive bond performance. For example, a computer may be programmed to set a laser path corresponding to a predetermined geometric pattern. A laser may be coupled to the computer and apply a pulsed laser beam to a contact surface of the titanium alloy along the predefined geometric pattern. The laser may generate an open pore oxide layer on the contact surface of the substrate with a thickness of 100 and 500 nm. The open pore oxide layer may have a topography corresponding to the predefined geometric pattern. The topography may contain high degree of open pore structure and promote adhesive bond performance. Adhesive, primer or composite resin matrix may fully infiltrate into the open pore structures. Adhesive and composite laminate may co-cure to form composite-to-titanium hybrid bonded structures.

公开(公告)号：US20210293150A1

公开(公告)日：2021-09-23

申请号：US17185010

申请日：2021-02-25

Applicant: Raytheon Technologies Corporation

Inventor： Xiaomei Fang ,  John D. Riehl ,  George Alan Salisbury

IPC: F01D5/28 ,  F01D9/02 ,  B23K26/362

Abstract: The present disclosure provides methods and systems for composite-to-metal hybrid bonded structures compromising the laser surface treatment on titanium alloys to promote adhesive bond performance. For example, a computer may be programmed to set a laser path corresponding to a predetermined geometric pattern. A laser may be coupled to the computer and apply a pulsed laser beam to a contact surface of the titanium alloy along the predefined geometric pattern. The laser may generate an open pore oxide layer on the contact surface of the substrate with a thickness of 100 and 500 nm. The open pore oxide layer may have a topography corresponding to the predefined geometric pattern. The topography may contain high degree of open pore structure and promote adhesive bond performance. Adhesive, primer or composite resin matrix may fully infiltrate into the open pore structures. Adhesive and composite laminate may co-cure to form composite-to-titanium hybrid bonded structures.

公开(公告)号：US20240344461A1

公开(公告)日：2024-10-17

申请号：US18299478

申请日：2023-04-12

Applicant: Raytheon Technologies Corporation

Inventor： Xiaomei Fang ,  John Harner ,  David J. Mathiau, JR. ,  William R. Graves ,  James O. Hansen

IPC: F01D5/28 ,  C09J163/00 ,  C09J175/04

CPC classification number: F01D5/288 ,  C09J163/00 ,  C09J175/04 ,  F05B2230/23 ,  F05B2230/90 ,  F05B2280/6011

Abstract: Disclosed herein is a blade for a turbine comprising a blade cover; a blade body; and a layer of adhesive disposed between the blade cover and the blade body; where the layer of adhesive comprises a first adhesive region and a second adhesive region; where the first adhesive region comprises an adhesive that is chemically different from an adhesive used in the second adhesive region.

公开(公告)号：US11828196B2

公开(公告)日：2023-11-28

申请号：US17587246

申请日：2022-01-28

Applicant: RAYTHEON TECHNOLOGIES CORPORATION

Inventor： Zhigang Wang ,  Tahany El-Wardany ,  Xia Tang ,  Gajawalli V. Srinivasan ,  Anthony G. Ruglio ,  Xiaomei Fang

IPC: F01D5/28 ,  F01D25/24

CPC classification number: F01D5/288 ,  F01D25/24 ,  F05D2250/184 ,  F05D2250/185 ,  F05D2300/611

Abstract: A gas turbine engine article includes a substrate that has a pre-bond surface that includes a serpentine groove. A coating is disposed on the pre-bond surface and mechanically interlocks with the serpentine groove.

公开(公告)号：US20230146670A1

公开(公告)日：2023-05-11

申请号：US18093613

申请日：2023-01-05

Applicant: Raytheon Technologies Corporation

Inventor： Xiaomei Fang ,  John D. Riehl ,  George Alan Salisbury

IPC: F01D5/28 ,  B23K26/352 ,  F01D9/04

CPC classification number: F01D5/282 ,  B23K26/3584 ,  F01D9/041 ,  B23K26/355 ,  B23K26/3568 ,  F05D2230/13 ,  F05D2240/12 ,  F05D2300/174 ,  F05D2300/603 ,  B29C66/022

Abstract: The present disclosure provides methods and systems for composite-to-metal hybrid bonded structures compromising the laser surface treatment on titanium alloys to promote adhesive bond performance. For example, a computer may be programmed to set a laser path corresponding to a predetermined geometric pattern. A laser may be coupled to the computer and apply a pulsed laser beam to a contact surface of the titanium alloy along the predefined geometric pattern. The laser may generate an open pore oxide layer on the contact surface of the substrate with a thickness of 100 and 500 nm. The open pore oxide layer may have a topography corresponding to the predefined geometric pattern. The topography may contain high degree of open pore structure and promote adhesive bond performance. Adhesive, primer or composite resin matrix may fully infiltrate into the open pore structures. Adhesive and composite laminate may co-cure to form composite-to-titanium hybrid bonded structures.