公开(公告)号：US11492978B2

公开(公告)日：2022-11-08

申请号：US17513995

申请日：2021-10-29

Applicant: RAYTHEON TECHNOLOGIES CORPORATION

Inventor： Paul M. Lutjen ,  Carson A. Roy Thill

IPC: F02C7/28

Abstract: An assembly for a gas turbine engine according to an example of the present disclosure includes, among other things, a gas turbine engine component that has a first interface portion, and a support that has a mounting portion and a second interface portion, the mounting portion attachable to an engine static structure, a first retention feature that releasably secures the first interface portion to the support in a first installed position of the gas turbine engine component, and a second retention feature dimensioned to secure the first interface portion to the second interface portion in a second installed position of the gas turbine engine component. The first installed position differs from the second installed position, and one of first and second retention features is dimensioned to carry the gas turbine engine component in response to release of another one of the first and second retention features. A method of sealing for a gas turbine engine is also disclosed.

公开(公告)号：US11225877B2

公开(公告)日：2022-01-18

申请号：US16265727

申请日：2019-02-01

Applicant: RAYTHEON TECHNOLOGIES CORPORATION

Inventor： Timothy M. Davis ,  Paul M. Lutjen

IPC: F16J15/08 ,  F01D11/00 ,  F16J15/34 ,  F16J15/06

Abstract: The present disclosure relates generally to a sliding seal between two components. The sliding seal includes a first seal section and an uncoupled second seal section which allows the first and second seal sections to move relative to one another during relative movement between the two components. A wave spring and/or a rope seal is disposed between the first and second seal sections biases the first and second seal sections away from one another.

公开(公告)号：US11193386B2

公开(公告)日：2021-12-07

申请号：US15157857

申请日：2016-05-18

Applicant: Raytheon Technologies Corporation

Inventor： Timothy M. Davis ,  Paul M. Lutjen ,  Kevin J. Ryan

IPC: F01D11/08 ,  F01D25/12 ,  B22C9/10 ,  F01D5/06 ,  F02C3/04

Abstract: A core assembly for fabricating an air cooled engine component for a gas turbine engine includes an end portion for defining passages within a side of an engine component. The end portion defines a first cross-section. A middle portion is spaced apart from the end portion and defines passages through a middle part of the engine component. The middle portion defines a second cross-section. One of the first cross-section and the second cross-section includes a first height greater than a second height. An air cooled engine component for a gas turbine engine and a gas turbine engine are also disclosed.

公开(公告)号：US20240141798A1

公开(公告)日：2024-05-02

申请号：US17977573

申请日：2022-10-31

Applicant: Raytheon Technologies Corporation

Inventor： Paul M. Lutjen ,  Morely S. Sherman

IPC: F01D11/08 ,  F02C7/18 ,  F02C7/28

CPC classification number: F01D11/08 ,  F02C7/18 ,  F02C7/28 ,  F05D2240/55 ,  F05D2300/6033

Abstract: There is an axial gap between a leading edge of one of a blade outer air seal and a stator vanes and a trailing edge of the other. A feather seal is positioned to span the axial gap. The feather seal has axially spaced curved portions, with one of the curved portions in contact with a surface of the blade outer air seal and another of the curved portions being in contact with a surface of the stator vane. A pressure differential forces the feather seal into contact with the sealing surfaces and the contact being point contact due to the curved portions.

公开(公告)号：US20230323784A1

公开(公告)日：2023-10-12

申请号：US17842932

申请日：2022-06-17

Applicant: Raytheon Technologies Corporation

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

IPC: F01D11/18 ,  F01D25/00

CPC classification number: F01D11/18 ,  F01D25/005 ,  F05D2230/90 ,  F05D2230/22 ,  F05D2260/30

Abstract: An advanced passive clearance control (APCC) control ring is provided. The APCC control ring includes first and second cover sections, first and second wall sections and a control ring. At least one of the first and second cover sections is bonded to corresponding edges of the first and second wall sections by field assisted sintering technology (FAST) processing along a bond surface to form an enclosure for the control ring.

公开(公告)号：US20230151738A1

公开(公告)日：2023-05-18

申请号：US17842924

申请日：2022-06-17

Applicant: Raytheon Technologies Corporation

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

IPC: F01D11/08 ,  F01D25/00

CPC classification number: F01D11/08 ,  F01D25/007 ,  F05D2230/21 ,  F05D2230/10 ,  F05D2230/22 ,  F05D2260/204

Abstract: A method of assembling a part is provided and includes forming a first section of the part, defining, in the first section, passages with dimensions as small as 0.005 inches (0.127 mm), forming a second section of the part, metallurgically bonding the first and second sections whereby the passages are delimited by the first and second sections and executing the metallurgically bonding without modifying a condition of the passages.

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：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：US20220195576A1

公开(公告)日：2022-06-23

申请号：US17687901

申请日：2022-03-07

Applicant: Raytheon Technologies Corporation

Inventor： Christopher W. Strock ,  Paul M. Lutjen

IPC: C23C4/08 ,  F01D5/28 ,  C23C4/12 ,  C23C4/06 ,  C23C4/134 ,  C23C4/123 ,  F01D11/12 ,  C23C4/18

Abstract: A novel method of depositing grit particles onto a fan blade tip coating is provided. The method enhances grit capture by presenting a softened coating surface for the impinging particles. The softened surface is achieved without high substrate temperatures that could degrade the base metal properties in the fan blade. An auxiliary heat source is used to establish a locally heated and softened surface where the grit deposition takes place. The softened surface greatly increases the probability of grit capture.

公开(公告)号：US20240301805A1

公开(公告)日：2024-09-12

申请号：US18181149

申请日：2023-03-09

Applicant: Raytheon Technologies Corporation

Inventor： Paul M. Lutjen ,  Dairus D. McDowell

IPC: F01D25/24 ,  F01D25/28

CPC classification number: F01D25/243 ,  F01D9/023 ,  F05D2240/40 ,  F05D2260/36

Abstract: A component of a gas turbine engine includes a continuous hoop portion extending at least partially around an engine central longitudinal axis of the gas turbine engine and a bolting feature extending from the hoop portion, configured for securing the component to an adjacent component. The bolting feature includes a circumferential arm extending radially and circumferentially from the hoop portion. The circumferential arm defines a radial gap between the circumferential arm and the hoop portion. The circumferential arm includes a bolt opening for installation of a bolt therethrough. A connecting leg extends radially from the hoop portion across the radial gap toward the connecting arm. An arm interlocking feature is located at the circumferential arm and is configured to radially interlock with a complementary leg interlocking feature of the connecting leg. The arm interlocking feature and the leg interlocking feature have a radial interconnect gap therebetween in a free state.