公开(公告)号：US20240310047A1

公开(公告)日：2024-09-19

申请号：US18121286

申请日：2023-03-14

Applicant: RTX Corporation

Inventor： Dibesh D. Joshi

IPC: F23R3/00 ,  F02C7/24 ,  F02C7/30

CPC classification number: F23R3/002 ,  F02C7/24 ,  F02C7/30 ,  F05D2220/32 ,  F05D2240/35 ,  F05D2260/231 ,  F05D2260/95

Abstract: A combustor for a gas turbine engine, including: a heat shield panel attached to a combustor liner, the combustor liner having a plurality of primary apertures extending through the combustor liner and the heat shield panel having a plurality of apertures extending therethrough; an intermediary layer located between the combustor liner and the heat shield panel, the intermediary layer being spaced from the combustor liner and the intermediary layer being spaced from the heat shield panel, the intermediary layer including a plurality of secondary apertures extending through the intermediary layer, the plurality of apertures, the plurality of primary apertures and the plurality of secondary apertures each being in fluid communication with each other; and a plurality of pins extending upwardly and away from a surface of the intermediary layer towards a surface of the combustor liner.

公开(公告)号：US12091368B2

公开(公告)日：2024-09-17

申请号：US16694486

申请日：2019-11-25

Applicant: Rolls-Royce Corporation

Inventor： Taylor K. Blair

IPC: C04B41/50 ,  C04B41/45 ,  C04B41/52 ,  C04B41/87 ,  F02C7/30

CPC classification number: C04B41/5059 ,  C04B41/4556 ,  C04B41/4558 ,  C04B41/522 ,  C04B41/524 ,  C04B41/87 ,  F02C7/30 ,  F05D2220/32 ,  F05D2230/90 ,  F05D2300/30

Abstract: A method may include applying a layer comprising a carbon source on a surface of a substrate including silicon; applying a layer comprising silicon on the layer comprising elemental carbon; and heat treating at least the layer comprising the carbon source to cause carbon from the layer comprising the carbon source to react with at least one of silicon from the substrate or silicon from the layer comprising silicon to form silicon carbide.

公开(公告)号：US12031226B2

公开(公告)日：2024-07-09

申请号：US17831677

申请日：2022-06-03

Applicant: Raytheon Technologies Corporation

Inventor： Lei Jin

IPC: F01D5/28 ,  C25D3/56 ,  C25D5/00 ,  C25D5/50 ,  C25D7/00 ,  C25D7/10 ,  F02C7/06 ,  F02C7/30

CPC classification number: C25D5/615 ,  C25D3/562 ,  C25D5/50 ,  C25D7/00 ,  C25D7/10 ,  F02C7/06 ,  F02C7/30 ,  F05D2230/90

Abstract: An article for a gas turbine engine according to an exemplary embodiment of this disclosure, among other possible things includes a substrate and a nickel phosphorous coating disposed on the substrate. The nickel phosphorus coating has a columnar microstructure. A method of applying a coating to an article for a gas turbine engine is also disclosed.

公开(公告)号：US20240117479A1

公开(公告)日：2024-04-11

申请号：US18364875

申请日：2023-08-03

Applicant: General Electric Company

Inventor： Lawrence Bernard Kool ,  Bangalore Aswatha Nagaraj ,  Thomas George Holland ,  Alfred Albert Mancini ,  Michael Anthony Benjamin

IPC: C23C2/04 ,  B05D1/12 ,  B05D1/18 ,  B05D5/00 ,  B32B15/04 ,  B32B15/18 ,  C09D1/00 ,  C23C2/26 ,  C23C4/04 ,  C23C4/06 ,  C23C4/10 ,  C23C4/18 ,  C23C14/08 ,  C23C20/00 ,  C23C20/06 ,  C23C20/08 ,  C23C24/00 ,  C23C26/00 ,  F01D5/28 ,  F02C7/30

CPC classification number: C23C2/04 ,  B05D1/12 ,  B05D1/18 ,  B05D5/00 ,  B32B15/04 ,  B32B15/043 ,  B32B15/18 ,  C09D1/00 ,  C23C2/26 ,  C23C4/04 ,  C23C4/06 ,  C23C4/10 ,  C23C4/18 ,  C23C14/087 ,  C23C20/00 ,  C23C20/06 ,  C23C20/08 ,  C23C24/00 ,  C23C26/00 ,  F01D5/28 ,  F01D5/286 ,  F01D5/288 ,  F02C7/30 ,  F05D2220/323 ,  F05D2230/30 ,  F05D2230/31 ,  F05D2230/90 ,  Y02T50/60 ,  Y10T428/12847 ,  Y10T428/12944 ,  Y10T428/12951 ,  Y10T428/12979 ,  Y10T428/2495 ,  Y10T428/24967 ,  Y10T428/26 ,  Y10T428/265

Abstract: A hydrocarbon fluid containment article having a wall with a surface that is wetted by hydrocarbon fluid. The surface includes an anti-coking coating. The anti-coking coating includes a copper salt, a silver salt, or a combination thereof. A gas turbine engine component including a wall having a first surface and an anti-coking coating on the first surface of the wall that is wetted by hydrocarbon fluid. The anti-coking coating including a copper salt, a silver salt, or a combination thereof that prevents the formation of gum or coke on a surface thereon. Methods for reducing the deposition of thermal decomposition products on a wall of an article are also provided.

公开(公告)号：US20240003292A1

公开(公告)日：2024-01-04

申请号：US17809633

申请日：2022-06-29

Applicant: General Electric Company

Inventor： Thomas L. Pugh ,  Mark E. Linz ,  Jarrod Paul Sands ,  John J. Rahaim

IPC: F02C7/30 ,  F02K3/06 ,  F02C6/08

CPC classification number: F02C7/30 ,  F02K3/06 ,  F02C6/08

Abstract: An exhaust device for a compressor bypass bleed system of a ducted fan engine includes a housing having an inlet end and an outlet end and defining a centerline axis from the inlet end to the outlet end, an inlet flow conditioner arranged at the inlet end, the inlet flow conditioner including a plurality of inlet openings for conducting a flow of compressed air therethrough into the housing, and an exit screen arranged at the outlet end of the housing. The exit screen includes a plurality of exit openings therethrough arranged at an acute angle with respect to the centerline axis so as to provide a flow of compressed air therethrough into a bypass flow passage at least partially in a same direction as a bypass airflow through the bypass flow passage.

公开(公告)号：US20230304445A1

公开(公告)日：2023-09-28

申请号：US17815640

申请日：2022-07-28

Applicant: General Electric Company

Inventor： Narayanan Janakiraman ,  Arundhati Sengupta ,  Lawrence B. Kool ,  Karthick Gourishankar ,  Sanjay Kumar Sondhi

IPC: F02C7/30 ,  C10L10/04 ,  C10G29/20 ,  C10L1/30 ,  C10M135/14 ,  F16N7/40 ,  F02C7/22 ,  F02C7/06

CPC classification number: F02C7/30 ,  C10L10/04 ,  C10G29/20 ,  C10L1/305 ,  C10M135/14 ,  F16N7/40 ,  F02C7/22 ,  F02C7/06 ,  C10L2270/04 ,  C10L2200/043 ,  C10L2230/04 ,  C10G2400/08 ,  C10G2300/708 ,  C10G2300/1051 ,  C10M2203/003 ,  C10M2219/062 ,  C10N2030/78

Abstract: An organometallic chemistry-based compound for preventing coke formation in a hydrocarbon fluid system. The organometallic chemistry-based compound includes a coordination complex that interrupts an autoxidative pathway of coke formation. A component and a system for mitigating coke formation during delivery or circulation of a hydrocarbon fluid. The component includes a contact surface configured to be in contact with the hydrocarbon fluid. The contact surface is functionalized with an inhibitor ligand to form an inhibitor ligand-functionalized surface. The inhibitor ligand-functionalized surface interrupts an autoxidative pathway of coke formation.

公开(公告)号：US11697623B2

公开(公告)日：2023-07-11

申请号：US17324593

申请日：2021-05-19

Applicant: Rolls-Royce Corporation

Inventor： Jeffrey Crutchfield

IPC: C04B41/50 ,  C04B41/00 ,  C04B41/86 ,  F02C7/30 ,  C04B37/00 ,  F01D5/28

CPC classification number: C04B41/5024 ,  C04B37/003 ,  C04B41/009 ,  C04B41/86 ,  F01D5/282 ,  F01D5/288 ,  F02C7/30 ,  C04B2237/083 ,  C04B2237/16 ,  C04B2237/38 ,  C04B2237/61 ,  F05D2220/32 ,  F05D2230/90 ,  F05D2240/10 ,  F05D2240/24 ,  F05D2240/35 ,  F05D2240/55

Abstract: A method to produce a ceramic matrix composite with controlled surface characteristics includes: applying a scrim ply to a surface of a fiber preform, where the fiber preform includes silicon carbide fibers coated with boron nitride; infiltrating the fiber preform and the scrim ply with a slurry, thereby forming an impregnated ply on an impregnated fiber preform; infiltrating the impregnated fiber preform and the impregnated ply with a melt comprising silicon, and then cooling, thereby forming a ceramic matrix composite having a ceramic surface layer thereon, where the ceramic surface layer has a predetermined thickness and is devoid of boron; machining or grit blasting the ceramic surface layer to form an intermediate layer suitable for coating; and depositing an environmental barrier coating on the intermediate layer. Thus, a ceramic matrix composite coated with the environmental barrier coating is formed with the intermediate layer in between.

公开(公告)号：US20230115387A1

公开(公告)日：2023-04-13

申请号：US18080809

申请日：2022-12-14

Applicant: General Electric Company

Inventor： Alston Ilford Scipio ,  Colin Noel Stevens ,  Sanji Ekanayake

IPC: F01D25/00 ,  B08B3/02 ,  B08B3/08 ,  B08B9/032 ,  C11D3/00 ,  C11D3/28 ,  C11D3/30 ,  C11D11/00 ,  F02C7/30 ,  F23D14/50

Abstract: A gas turbine engine system includes a compressor, gas turbine, and combustor including a plurality of late lean fuel injectors supplied with secondary fuel to its interior. The gas turbine engine system includes a wash system in communication with the late lean fuel injectors. The wash system includes a water source; water pump; anti-corrosion agent fluid source with an anti-corrosion agent including a amine corrosion inhibitor; anti-corrosion agent supply piping in fluid communication with the anti-corrosion agent fluid source; mixing chamber receiving water and anti-corrosion agent to produce an anti-corrosion mixture in fluid communication with the mixing chamber and the plurality of late lean fuel injectors. Fluid from the mixing chamber including the water, the anti-corrosion agent fluid source, or a mixture thereof is injected, while the gas turbine engine is off-line, into the combustor and at least one of the plurality of late lean fuel injectors.

公开(公告)号：US11613813B2

公开(公告)日：2023-03-28

申请号：US16838378

申请日：2020-04-02

Applicant: Hamilton Sundstrand Corporation

Inventor： Tianli Zhu ,  Weilong Zhang ,  Michael A. Kryzman ,  Blair A. Smith ,  Georgios S. Zafiris ,  Olivier Brucelle

IPC: C23F11/18 ,  F01D5/28 ,  F02C7/30 ,  C09D5/10 ,  C09D1/02

Abstract: Disclosed is a corrosion inhibition coating, comprising: a base comprising a silicate matrix, wherein aluminum, an aluminum alloy, or a combination thereof, is present within the silicate matrix; and an inhibitor comprising: zinc molybdate, cerium citrate, magnesium metasilicate, a metal phosphate silicate, or a combination thereof, wherein a curing temperature of the corrosion inhibition coating is about 20° C. to about 190° C., preferably about 20° C. to about 120° C. Also disclosed is a substrate coated with the corrosion inhibition coating, wherein the substrate is a peened part.

公开(公告)号：US20220128008A1

公开(公告)日：2022-04-28

申请号：US17077954

申请日：2020-10-22

Applicant: PRATT & WHITNEY CANADA CORP.

Inventor： Joseph CIRTWILL ,  Jian-Ming ZHOU ,  Kian MCCALDON

IPC: F02C7/30 ,  F02C9/26 ,  F23R3/28

Abstract: A method of purging fuel injectors of a gas turbine engine, the fuel injectors fluidly connected to a fuel manifold and having primary and secondary fuel passages fluidly connectable to the fuel manifold, the method includes: selectively fluidly disconnecting one or more of the primary and secondary fuel passages from the fuel manifold; and purging the one or more of the primary and secondary fuel passages by injecting a purging fluid into the one or more of the primary and secondary fuel passages while bypassing the fuel manifold. A fuel injector having two fuel passages, a flow divider valve, and a purging valve is disclosed.