公开(公告)号：US20230151736A1

公开(公告)日：2023-05-18

申请号：US17842926

申请日：2022-06-17

Applicant: Raytheon Technologies Corporation

Inventor： Brian T. Hazel ,  John R. Farris ,  Matthew A. Devore ,  John A. Sharon ,  James F. Wiedenhoefer ,  Paul M. Lutjen ,  Mario P. Bochiechio

IPC: F01D5/00 ,  B22F3/105 ,  B22F3/24

CPC classification number: F01D5/005 ,  B22F3/105 ,  B22F3/24 ,  B22F2003/247 ,  B22F2003/242 ,  F05D2230/80

Abstract: A method of repair of a part is provided and includes removing a section that is damaged from the part, casting a replacement section for the part, the replacement section having a geometry similar to that of the section in an undamaged condition and bonding the replacement section to the part using field assisted sintering technology (FAST).

公开(公告)号：US20230147399A1

公开(公告)日：2023-05-11

申请号：US17842936

申请日：2022-06-17

Applicant: Raytheon Technologies Corporation

Inventor： John R. Farris ,  John A. Sharon

IPC: F01D9/04 ,  B22F3/105 ,  F01D5/28 ,  F01D11/00

CPC classification number: F01D9/041 ,  B22F3/105 ,  F01D5/288 ,  F01D11/005 ,  F05D2230/22 ,  F05D2230/90 ,  F05D2230/10 ,  F05D2230/21 ,  F05D2240/80

Abstract: A method of joining first and second turbine vanes is provided. The method includes casting and machining each of the first and second turbine vanes, coating each of the first and second turbine vanes with thermal barrier coating (TBC) and executing field assisted sintering technology (FAST) processing to join the first and second turbine vanes.

公开(公告)号：US20220403742A1

公开(公告)日：2022-12-22

申请号：US17842866

申请日：2022-06-17

Applicant: Raytheon Technologies Corporation

Inventor： Brian T. Hazel ,  John R. Farris ,  Matthew A. Devore ,  John A. Sharon ,  James F. Wiedenhoefer ,  Paul M. Lutjen ,  Mario P. Bochiechio

IPC: F01D5/14 ,  B22F7/06 ,  B22F3/105 ,  F01D5/28 ,  F01D5/30

Abstract: An article comprises a first portion comprising a first alloy and a second portion comprising a second alloy that is metallurgically bonded to the first portion to form a monolithic article. The metallurgical bonding involves the application of an electrical current across the bond line and results in a retention of a metallurgical structure of the first portion and of a metallurgical structure of the second portion immediately adjacent to a bond line. The first portion has a first dominant property and the second portion has a second dominant property. The first dominant property is different from the second dominant property. The first dominant property is selected to handle operating conditions at a first position of the article where the first portion is located and the second dominant property is selected to handle operating conditions at a second position of the article where the second portion is located.

公开(公告)号：US20220397064A1

公开(公告)日：2022-12-15

申请号：US17837829

申请日：2022-06-10

Applicant: Raytheon Technologies Corporation

Inventor： Marc J. Muldoon ,  Arnab Roy ,  John R. Farris

IPC: F02C7/32 ,  B64D27/24 ,  B64D27/16 ,  F02C6/14

Abstract: A hybrid electric propulsion system including: a gas turbine engine comprising a low speed spool and a high speed spool, the low speed spool comprising a low pressure compressor and a low pressure turbine, and the high speed spool comprising a high pressure compressor and a high pressure turbine; an electric motor configured to augment rotational power of the high speed spool or the low speed spool; at least one blade outer air seal positioned between an outer case of the high pressure turbine and a plurality of blades of the high pressure turbine; a clearance control system operably coupled to the at least one blade outer air seal, the clearance control system configured to vary a position of the at least one blade outer air seal with respect to the plurality of blades of the high pressure turbine; and a controller operably coupled to the electric motor and the clearance control system, wherein the controller is configured to operate the clearance control system based upon an operational state of the electric motor.

公开(公告)号：US11131207B1

公开(公告)日：2021-09-28

申请号：US16864765

申请日：2020-05-01

Applicant: Raytheon Technologies Corporation

Inventor： John R. Farris ,  Michael G. McCaffrey

IPC: F01D11/22

Abstract: A semi-autonomous rapid response active clearance control system for a gas turbine engine includes an outer case, a carrier for a blade outer airseal positioned radially inward of the outer case, a blade outer airseal positioned radially inward of and mounted to the carrier, at least one electromechanical actuator attached to the outer case and selectively operable to move the carrier, and a sensing system. The sensing system includes a maneuver sensor housed within the actuator and configured to output a first signal, a position sensor mounted proximate to the blade outer airseal and configured to output a second signal, and a control means in communication with the maneuver sensor and the position sensor.

公开(公告)号：US20210254474A1

公开(公告)日：2021-08-19

申请号：US17174938

申请日：2021-02-12

Applicant: Raytheon Technologies Corporation

Inventor： John R. Farris ,  John A. Sharon ,  Alan D. Cetel ,  Dilip M. Shah

IPC: F01D5/14 ,  F01D5/28

Abstract: In a method for manufacturing a turbine engine element such as a blade or vane, the element has an airfoil. The method includes: applying a load across an assembly of a first cast portion of the airfoil and a second cast portion of the airfoil; and applying current across a junction of the first cast portion and the second cast portion to fuse the second cast portion to the first cast portion.