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公开(公告)号：US10821664B2
公开(公告)日：2020-11-03
申请号：US15672729
申请日：2017-08-09
Applicant: General Electric Company
IPC: B29C64/371 , B29C64/364 , B33Y30/00 , B29C64/245 , B28B1/00 , B22F3/105 , B29C64/209 , B29C64/268 , B29K105/00
Abstract: A nozzle has a main body having an input side and an output side, a central region and two opposing end regions. A plurality of linearly arranged apertures extend from the input side to the output side, and each of the apertures has a respective opening. At least one opening in the central region is smaller than at least one opening in the end regions.
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公开(公告)号：US20200339483A1
公开(公告)日：2020-10-29
申请号：US16393360
申请日：2019-04-24
Applicant: General Electric Company
Inventor： Jason Robert Parolini , Canan Uslu Hardwicke , Srikanth Chandrudu Kottilingam , James Joseph Murray, III
IPC: C04B41/45
Abstract: Various embodiments include methods for densifying a melt infiltrated ceramic matrix composite (CMC) article, and a densified melt infiltrated CMC article formed thereby. Particular embodiments include a method including: providing a porous CMC preform within a first region of a casting apparatus; providing a molten densifier within a pressure head area of a second region of the casting apparatus, the first and second regions being operably connected and the molten densifier including at least one source of silicon; and applying a first pressure to the molten densifier within the pressure head, thereby infiltrating voids within the porous CMC preform with the molten densifier and forming a densified melt infiltrated CMC article.
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公开(公告)号：US20200149403A1
公开(公告)日：2020-05-14
申请号：US16184052
申请日：2018-11-08
Applicant: General Electric Company
Abstract: A blade for a turbomachine, a tip for a blade of a turbomachine and a related method are disclosed. The blade may include a tip body having a shape at least partially configured for coupling to an airfoil body of the blade; at least one coolant passage in the tip body configured for fluid communication with at least one coolant passage in the airfoil body; and a retention member extending from the tip body for coupling to a tip retention member seat in the airfoil body. The tip can be replaced, allowing for changes in the coolant passages in the tip of a blade.
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公开(公告)号：US10544941B2
公开(公告)日：2020-01-28
申请号：US15371308
申请日：2016-12-07
Applicant: General Electric Company
Inventor： Lucas John Stoia , Richard Martin DiCintio , Timothy James Purcell , Srikanth Chandrudu Kottilingam
Abstract: A fuel nozzle assembly includes a forward plate and an aft plate which is axially spaced from the forward plate. The aft plate includes a first side surface and a second side surface. A cooling air plenum is defined within the bundled tube fuel nozzle assembly and is at least partially defined by the aft plate. A plurality of tubes extends through the forward plate, the cooling air plenum and the aft plate. A micro-cooling channel is disposed along the second side surface of the aft plate and is in fluid communication with the cooling air plenum and is in fluid communication with an exhaust aperture. A cover plate is connected to the aft plate and covers the micro-cooling channel.
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公开(公告)号：US10539041B2
公开(公告)日：2020-01-21
申请号：US14059909
申请日：2013-10-22
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Srikanth Chandrudu Kottilingam , Benjamin Paul Lacy , Brian Gene Brzek , David Edward Schick
Abstract: A cooled article and a method of forming a cooled article are disclosed. The cooled article includes a component, a porous material incorporated into the component, and a cooling medium within the porous material. Another cooled article is formed by a process includes the steps of forming a porous material from a pre-sintered preform, providing a component, and incorporating the porous material into the component. The porous material is in fluid communication with a cooling medium. The method of forming a cooled article includes providing a metal felt material infused with braze filler material, pre-sintering the metal felt material to form a porous material, providing a component, and incorporating the porous material into the component.
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Patent Agency Ranking
公开(公告)号：US10508316B2
公开(公告)日：2019-12-17
申请号：US15475661
申请日：2017-03-31
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Yan Cui , Srikanth Chandrudu Kottilingam , Brian Lee Tollison , Brian Leslie Henderson , Cem Murat Eminoglu
Abstract: A method for counteracting tensile stress in an article is disclosed, including heating the article and applying compressive stress to the article along a compressive stress vector, the compressive stress vector including a compressive stress vector component opposite in direction to a tensile stress vector of a thermally-induced tensile stress of the article. The compressive stress is applied by thermally-induced autogenous pressure by a fixture contacting the article. A fixture for counteracting tensile stress is disclosed, including a first compression member and a second compression member, and a position lock connecting the first compression member to the second compression member and reversibly fixing the first compression member relative to the second compression member. The first compression member and the second compression member include compressive surfaces having mating conformations for surfaces of an article. The position lock includes a material composition.
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公开(公告)号：US10322575B2
公开(公告)日：2019-06-18
申请号：US15661126
申请日：2017-07-27
Applicant: General Electric Company
Inventor： Benjamin Paul Lacy , Srikanth Chandrudu Kottilingam , Christopher Donald Porter , David Edward Schick
Abstract: Various embodiments of the disclosure include a turbomachine component. and methods of forming such a component. Some embodiments include a turbomachine component including: a first portion including at least one of a stainless steel or an alloy steel; and a second portion joined with the first portion, the second portion including a nickel alloy including an arced cooling feature extending therethrough, the second portion having a thermal expansion coefficient substantially similar to a thermal expansion coefficient of the first portion, wherein the arced cooling feature is located within the second portion to direct a portion of a coolant to a leakage area of the turbomachine component.
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公开(公告)号：US10221468B2
公开(公告)日：2019-03-05
申请号：US15197902
申请日：2016-06-30
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Laura Cerully Dial , Srikanth Chandrudu Kottilingam
IPC: B23K26/342 , B33Y10/00 , C22C19/05 , C22C32/00 , C22C1/04 , B33Y70/00 , B23K26/144 , B23K101/00 , B23K103/18
Abstract: Additive manufacturing methods, and articles made using additive manufacturing methods, are described herein. One embodiment is an article that comprises a hafnium-bearing superalloy. The superalloy includes at least about 50 weight percent nickel, from about 0.015 weight percent to about 0.06 weight percent carbon, and up to about 0.8 weight percent hafnium. The article further includes a plurality of primary carbide phase particulates disposed within the superalloy; the plurality has a median size less than about 1 micrometer. A method includes melting and solidifying particulates of a metal powder feedstock to build an intermediate article comprising a series of layers of solidified material. The feedstock includes the above-described superalloy composition. The method further includes heating the intermediate article to a temperature of at least about 950 degrees Celsius to form a processed article. The processed article further includes a plurality of primary carbide phase particulates disposed within the solidified material, the plurality of particulates having a median size less than about 1 micrometer.
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公开(公告)号：US10119473B2
公开(公告)日：2018-11-06
申请号：US14717074
申请日：2015-05-20
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Dechao Lin , Srikanth Chandrudu Kottilingam , Xiaoxue Diao , Nicholas Thomas
IPC: F02C7/22
Abstract: Components are disclosed which include a first component section and a second component section joined to form a hollow structure defining a plenum having an interior surface, wherein the component sections each include mating ridges joined together along the length of the plenum, and a corrosion-resistant cladding layer including a corrosion-resistant material overlaying the interior surface of the plenum. In one embodiment, the component is a gas turbine combustor fuel manifold. A method of forming the components includes applying corrosion-resistant segments including a corrosion-resistant material to each of the surfaces of the component sections, and joining the component sections to form the component, wherein joining the component sections includes fusing the corrosion-resistant segments into the corrosion-resistant cladding layer, and joining the mating ridges of the component sections.
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120.发明授权公开(公告)号：US10099290B2
公开(公告)日：2018-10-16
申请号：US14574557
申请日：2014-12-18
Applicant: General Electric Company
IPC: B22F5/00 , B23K26/34 , B33Y10/00 , C22C19/07 , B22F7/08 , B22F3/105 , B22F3/24 , B22F5/04 , B22F7/06 , B33Y80/00 , B23K26/342 , B23K26/00 , C22C19/05 , F01L9/02 , B23K10/02 , B23K103/18 , B23K103/08 , B23K103/10 , B23K103/14 , B23K103/04
Abstract: A hybrid additive manufacturing method comprises building an additive structure on a pre-sintered preform base, wherein building the additive structure comprises iteratively fusing together a plurality of layers of additive material with at least a first layer of additive material joined to the pre-sintered preform base, and wherein the pre-sintered preform base comprises an initial shape. The hybrid additive manufacturing method further comprises modifying the initial shape of the pre-sintered preform base comprising the additive structure into a modified shape comprising the additive structure, and, joining the pre-sintered preform base in its modified shape to a component.
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