公开(公告)号：US11535962B2

公开(公告)日：2022-12-27

申请号：US16880341

申请日：2020-05-21

Applicant: Raytheon Technologies Corporation

Inventor： Michael G. McCaffrey

IPC: D03D41/00 ,  D03D25/00

Abstract: Disclosed is a weaving assembly including a rotatable base, a base positional controller, a weave control grid, a warp fiber support, warp fiber arms, a warp fiber arm positional controller and a fill fiber wand.

公开(公告)号：US20220186619A1

公开(公告)日：2022-06-16

申请号：US17123344

申请日：2020-12-16

Applicant: RAYTHEON TECHNOLOGIES CORPORATION

Inventor： Michael G. McCaffrey

IPC: F01D5/02 ,  F01D5/06 ,  F01D25/16

Abstract: A turbine section for a gas turbine engine according to an example of the present disclosure includes, among other things, a first turbine rotor coupled to a first turbine shaft. The first turbine shaft is rotatable about a longitudinal axis. A second turbine rotor is coupled to a second turbine shaft. The second turbine shaft is rotatable about the longitudinal axis, and the second turbine rotor is axially aft of the first turbine rotor relative to the longitudinal axis. An aft bearing assembly rotatably supports the second turbine shaft. The second turbine rotor includes a disk assembly that carries at least one row of turbine blades. The disk assembly is mechanically attached to the second turbine shaft at an attachment point. The attachment point is axially aft of the aft bearing assembly such that an aft portion of the second turbine shaft is cantilevered from the aft bearing system with respect to the longitudinal axis. The disk assembly includes a metallic material. Each of the turbine blades comprises a ceramic matrix composite (CMC) material.

公开(公告)号：US20200271006A1

公开(公告)日：2020-08-27

申请号：US15931434

申请日：2020-05-13

Applicant: RAYTHEON TECHNOLOGIES CORPORATION

Inventor： Ross Wilson ,  John R. Farris ,  Michael G. McCaffrey ,  Theodore W. Hall ,  John J. Korzendorfer ,  Elizabeth F. Vinson ,  Jeffrey Michael Jacques ,  John E. Paul ,  Edwin Otero ,  Alan W. Stoner

IPC: F01D11/02 ,  F16J15/44 ,  F16F15/06 ,  F01D25/04

Abstract: A seal for a gas turbine engine includes a full hoop outer ring, a shoe coupled to the full hoop outer ring via an inner beam and an outer beam, and a wave spring in contact with at least one of the inner beam or the outer beam.

公开(公告)号：US12000306B2

公开(公告)日：2024-06-04

申请号：US17831933

申请日：2022-06-03

Applicant: RAYTHEON TECHNOLOGIES CORPORATION

Inventor： Michael G. McCaffrey

IPC: F01D5/28 ,  F01D5/14 ,  F01D9/04 ,  F04D9/04

CPC classification number: F01D5/282 ,  F01D5/141 ,  F01D5/147 ,  F04D9/041 ,  F05D2240/12 ,  F05D2240/80 ,  F05D2300/6033

Abstract: A vane arc segment includes ceramic matrix composite (CMC) fairing that has an airfoil section, a first single-sided platform at the outer radial end projecting from the suction side wall, and a second single-sided platform at the inner radial end projecting from the pressure side wall. The first single-sided platform is comprised of a fiber layer that extends from the airfoil section and turns into the first single-sided platform, and the second single-sided platform is comprised of the fiber layer that from the airfoil section and turns into the second single-sided platform.

公开(公告)号：US20230392511A1

公开(公告)日：2023-12-07

申请号：US17831944

申请日：2022-06-03

Applicant: RAYTHEON TECHNOLOGIES CORPORATION

Inventor： Michael G. McCaffrey

IPC: F01D11/08 ,  F01D5/12

CPC classification number: F01D11/08 ,  F01D5/12 ,  F05D2300/6033 ,  F05D2240/55 ,  F05D2300/614

Abstract: An article includes a gas turbine engine component that has a ceramic matrix composite (CMC) body and a fiber layer circumscribing a cavity. There is a ceramic insert incorporated into the CMC article body, the insert bordering the cavity.

公开(公告)号：US20230296026A1

公开(公告)日：2023-09-21

申请号：US17698332

申请日：2022-03-18

Applicant: Raytheon Technologies Corporation

Inventor： Michael G. McCaffrey

IPC: F01D5/28 ,  F01D5/14

CPC classification number: F01D5/282 ,  F01D5/147 ,  F05D2300/6033 ,  F05D2230/50

Abstract: A ceramic matrix composite blade includes a central core surrounded by an outer profile, the central core comprising layers of unidirectional layup having two dimension and three dimension fiber weaves; the outer profile comprises a biased weave layup that radiates toward a leading edge and a trailing edge of the blade; wherein the biased weave layup includes fibers that extend proximate an attachment region of the blade radially and axially along an airfoil portion of the blade toward the leading edge and trailing edge.

公开(公告)号：US20230184139A1

公开(公告)日：2023-06-15

申请号：US17551685

申请日：2021-12-15

Applicant: Raytheon Technologies Corporation

Inventor： Michael G. McCaffrey ,  Christopher King

IPC: F01D25/32 ,  F01D25/12 ,  F02C7/18 ,  B01D45/08

CPC classification number: F01D25/32 ,  F01D25/12 ,  F02C7/18 ,  B01D45/08 ,  F05D2220/32 ,  F05D2260/20 ,  F05D2260/232 ,  F05D2260/607

Abstract: A dirt blocker including a support structure disposed within a gas turbine engine, the support structure defining an upstream control volume proximate a forward portion of the gas turbine engine and a downstream control volume proximate an aft portion of the gas turbine engine, the downstream control volume being opposite the upstream control volume relative to the support structure, a flow passage formed through the support structure, the flow passage configured to fluidly couple the upstream control volume with the downstream control volume; a radial contact wall formed from the support structure in fluid communication with the upstream control volume, the radial contact wall configured to intercept debris entrained within cooling air within the gas turbine engine; and a stagnation zone fluidly coupled with the flow passage, the stagnation zone configured to reduce momentum of the debris.

公开(公告)号：US20230121696A1

公开(公告)日：2023-04-20

申请号：US18083801

申请日：2022-12-19

Applicant: Raytheon Technologies Corporation

Inventor： Michael G. McCaffrey

IPC: D03D41/00 ,  D03D25/00

Abstract: Disclosed is a weaving assembly including a rotatable base, a base positional controller, a weave control grid, a warp fiber support, warp fiber arms, a warp fiber arm positional controller and a fill fiber wand.

公开(公告)号：US11339722B2

公开(公告)日：2022-05-24

申请号：US17172858

申请日：2021-02-10

Applicant: Raytheon Technologies Corporation

Inventor： Michael G. McCaffrey

IPC: F02C7/28 ,  F01D11/12 ,  F01D25/24

Abstract: An interface for a gas turbine engine. The interface includes a full-hoop vane ring around the engine axis, the full-hoop vane ring comprises a forward vane rail with a vane ring forward contact surface and a vane ring anti-rotation tab, the vane ring anti-rotation tab engaged with the anti-rotation case slot; and a multiple of BOAS segments around the engine axis, each of the multiple of BOAS segments comprise a BOAS aft engagement feature and a BOAS aft contact surface, the BOAS aft engagement feature engaged with the outer case and the anti-rotation case slot, the BOAS aft contact surface abuts the vane ring forward contact surface.

公开(公告)号：US11230940B1

公开(公告)日：2022-01-25

申请号：US17006983

申请日：2020-08-31

Applicant: Raytheon Technologies Corporation

Inventor： Michael G. McCaffrey ,  Joseph D. Evetts ,  Kristine M. Carnavos ,  Conway Chuong ,  Christopher W. Robak ,  William Proscia ,  Purity Dele-Oni ,  Caroline Karanian ,  John E. Paul ,  Jagannath Pranatharthikaran

IPC: F01D11/02 ,  F01D11/08

Abstract: A rotational equipment assembly includes a plurality of seal shoes, a seal base, a plurality of spring elements and a secondary seal assembly. The seal shoes are arranged circumferentially around an axial centerline and include a first seal shoe. The first seal shoe includes a first seal shoe base and a first seal shoe rib that projects axially out from the first seal shoe base to an axial distal end of the first seal shoe rib. The seal base extends circumferentially around the axial centerline. The spring elements include a first spring element that connects and extends between the first seal shoe and the seal base. The secondary seal assembly is configured to seal a gap between the seal base and the seal shoes. The secondary seal assembly includes a free floating seal plate that axially contacts and is configured to slide radially along the first seal shoe rib.