公开(公告)号：US20250059915A1

公开(公告)日：2025-02-20

申请号：US18450040

申请日：2023-08-15

Applicant: RTX CORPORATION

Inventor： Michael G. McCaffrey ,  Anthony R. Bifulco ,  Daniel B. Kupratis

IPC: F02C7/052

Abstract: A fan has a rotating bulge defining a radially outermost point of the rotating cone relative to a rotational axis. The rotating bulge is defined by a radially outwardly extending forward portion leading to the radially outermost point on the bulge and then a radially inwardly extending portion aft of the radially outermost point of the bulge leading into the core engine path within the splitter housing. The core splitter housing has a leading edge, and the bulge radially outermost point being upstream of the leading edge of the splitter housing. The bulge radially outermost point is a first radial distance from a rotational axis, and the leading edge of the splitter housing being at a second radial distance of the rotational axis, and a ratio of the first radial distance to the second radial distance being at least 0.95.

公开(公告)号：US12012858B1

公开(公告)日：2024-06-18

申请号：US18308963

申请日：2023-04-28

Applicant: RTX Corporation

Inventor： Michael G. McCaffrey

IPC: F01D11/16 ,  F01D25/24

CPC classification number: F01D11/16 ,  F01D25/246 ,  F05D2240/55 ,  F05D2260/30

Abstract: A blade outer airseal (BOAS) assembly of a gas turbine engine includes a BOAS segment, and a BOAS carrier located radially outboard of the BOAS segment relative to an engine central longitudinal axis. The BOAS segment secured to the BOAS carrier. The BOAS assembly is selectably radially movable during operation of the gas turbine engine. One or more secondary retention features are configured to limit the radial movement of the BOAS assembly.

公开(公告)号：US11852345B2

公开(公告)日：2023-12-26

申请号：US17846412

申请日：2022-06-22

Applicant: RTX Corporation

Inventor： Michael G. McCaffrey ,  Matthew Andrew Hough ,  Pedro E. Rivero

IPC: F23R3/10 ,  F04D29/54 ,  F01D9/04 ,  F23R3/00 ,  C07K16/28

CPC classification number: F23R3/10 ,  C07K16/2863 ,  F01D9/041 ,  F04D29/545 ,  F23R3/005 ,  C07K2317/31 ,  C07K2317/622 ,  C07K2317/626 ,  F05D2230/60 ,  F05D2240/12 ,  F05D2240/35 ,  F05D2240/55

Abstract: A hot fairing structure for a pre-diffuser includes a ring-strut-ring structure that comprises a multiple of hollow struts and a multiple of inlets to a respective diffusion passage, one of the multiple of inlets formed between each one of the multiple of hollow struts located between two diffusion passages.

公开(公告)号：US12152551B1

公开(公告)日：2024-11-26

申请号：US18411832

申请日：2024-01-12

Applicant: RTX Corporation

Inventor： Michael G. McCaffrey

IPC: F02K1/06 ,  F02K1/08

Abstract: An assembly for an aircraft engine includes a variable area nozzle. The variable area nozzle includes a nozzle wall, a nozzle sleeve, an actuation system and a flowpath extending axially along an axis through the variable area nozzle and radially between the nozzle wall and the nozzle sleeve. The nozzle sleeve includes a support and a liner. The support includes a first mount and a second mount axially spaced from the first mount. The liner extends axially along and circumferentially about the support. The liner is axially and circumferentially anchored to the support through the first mount. The liner is circumferentially anchored to the support through the second mount. The actuation system is coupled to the support. The actuation system is configured to move the nozzle sleeve axially along the axis relative to the nozzle wall.

公开(公告)号：US12065937B1

公开(公告)日：2024-08-20

申请号：US18394669

申请日：2023-12-22

Applicant: RTX Corporation

Inventor： Michael G. McCaffrey ,  Nathan L. Messersmith

IPC: F01D17/14 ,  B64D27/10 ,  B64D33/04 ,  F01D17/16

CPC classification number: F01D17/14 ,  B64D27/10 ,  B64D33/04 ,  F01D17/16 ,  F05D2220/323 ,  F05D2250/90

Abstract: A variable area nozzle assembly includes a fixed center plug, a fixed outer nozzle, and an inner nozzle. The fixed center plug includes a plug body and a protrusion. The fixed outer nozzle extends about the fixed center plug. The inner nozzle extends about the fixed center plug. The inner nozzle is disposed between the fixed center plug and the fixed outer nozzle. The inner nozzle forms a primary duct between the inner nozzle and the fixed outer nozzle. The primary duct includes an exit plane. The inner nozzle body forms a secondary duct and a gap. The gap is a nozzle outlet of the secondary duct. The gap includes a gap inlet and a gap outlet. The gap inlet is disposed upstream of the protrusion. The gap outlet is disposed downstream of the protrusion. The inner nozzle body is translatable between a first position and a second position. In the first position, the primary duct has a first area at the exit plane and the inner nozzle body is disposed at the protrusion. In the second position, the primary duct has a second area at the exit plane and the inner nozzle body is spaced from the protrusion.

公开(公告)号：US11976568B2

公开(公告)日：2024-05-07

申请号：US18298047

申请日：2023-04-10

Applicant: RTX Corporation

Inventor： Michael G. McCaffrey ,  Bryan P. Dube

IPC: F01D5/18 ,  C04B35/628 ,  C04B35/80 ,  C23C16/04 ,  F01D5/28

CPC classification number: F01D5/282 ,  C04B35/62844 ,  C04B35/62884 ,  C04B35/80 ,  C23C16/045 ,  F01D5/18 ,  C04B2235/5252 ,  C04B2235/614 ,  F05D2220/32 ,  F05D2230/314 ,  F05D2300/6033

Abstract: Disclosed is a ceramic matrix component having a fibrous core and a ceramic matrix composite shell surrounding at least a portion of the fibrous core. The ceramic matrix composite shell comprises a fibrous preform. The fibrous core has a greater porosity than the fibrous preform. A method of making the ceramic matrix component is also disclosed.

公开(公告)号：US20240043350A1

公开(公告)日：2024-02-08

申请号：US18366075

申请日：2023-08-07

Applicant: RTX Corporation

Inventor： Michael G. McCaffrey

IPC: C04B41/52 ,  C04B41/91

CPC classification number: C04B41/52 ,  C04B41/91

Abstract: A method of forming a feature on an article includes applying a powder material stock to a surface of an article, the powder material stock being capable of being transformed into a solid feature by the application of energy; applying energy to a portion of the powder material stock within a footprint of a feature to form the feature within the footprint; and removing excess powder material stock from the surface of the article. A coated article is also disclosed.

公开(公告)号：US11834762B2

公开(公告)日：2023-12-05

申请号：US17981787

申请日：2022-11-07

Applicant: RTX Corporation

Inventor： Michael G. McCaffrey

IPC: D03D23/00 ,  D03D49/02 ,  D03D41/00

CPC classification number: D03D23/00 ,  D03D41/004 ,  D03D49/02 ,  D03D41/007

Abstract: Disclosed is a weaving method including placing a first section of a fill fiber between warp fibers, forming a pick, moving a base to reposition the warp fibers, and placing a second section of the fill fiber between the warp fibers to form a woven structure, wherein at least a portion of the warp fibers are introduced to the woven structure using a weave control grid. Also disclosed is a weaving assembly including a base, a base positional controller, a weave control grid, warp fiber arms, a warp fiber arm positional controller and a fill fiber wand.

公开(公告)号：US12110839B1

公开(公告)日：2024-10-08

申请号：US18394655

申请日：2023-12-22

Applicant: RTX Corporation

Inventor： Michael G. McCaffrey ,  Nathan L. Messersmith

IPC: F02K1/08 ,  F02K1/18 ,  F02K1/80

CPC classification number: F02K1/08 ,  F02K1/18 ,  F02K1/805 ,  F05D2220/323 ,  F05D2240/1281

Abstract: A variable area nozzle assembly includes a fixed center plug, a fixed outer nozzle, and an inner nozzle. The fixed center plug includes a seal. The inner nozzle is disposed between the fixed center plug and the fixed outer nozzle. The inner nozzle includes an inner nozzle body. The inner nozzle body forms a primary duct between the inner nozzle and the fixed outer nozzle. The inner nozzle body forms a secondary duct and a gap. The gap is a nozzle outlet of the secondary duct. The secondary duct is disposed between the inner nozzle body and the fixed center plug upstream of the seal. The inner nozzle body forms a plurality of apertures. The inner nozzle body is translatable between a first position and a second position. In the first position, the primary duct has a first cross-sectional area and the plurality of apertures are isolated from the gap by the seal. In the second position, the primary duct has a second cross-sectional area and the plurality of apertures are connected in fluid communication with the gap.

公开(公告)号：US12215603B2

公开(公告)日：2025-02-04

申请号：US18340205

申请日：2023-06-23

Applicant: RTX CORPORATION

Inventor： Marcus DeReimer ,  Michael G. McCaffrey

IPC: F01D5/28 ,  F02C7/00

Abstract: An airfoil includes a CMC airfoil wall that defines a platform, a root that extends radially from the platform, and an airfoil section that extends radially from the platform opposite the root. The CMC airfoil wall includes a wishbone-shaped fiber layup structure. The wishbone-shaped fiber layup structure includes first and second arms that merge into a single leg. The first and second arms are comprised of a network of fiber tows, and the single leg includes fiber tows from each of the first and second arms that are interwoven in the single leg. The single leg forms a portion of the root, and the first and second arms extend in opposite directions from the single leg and form a portion of the platform.