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1.发明公开公开(公告)号：US20240150251A1
公开(公告)日：2024-05-09
申请号：US17979866
申请日：2022-11-03
Applicant: General Electric Company
Inventor： Atanu Saha , Don Mark Lipkin , Sreerama Prasad R , Mamatha Nagesh , Nicholas Edward Antolino
CPC classification number: C04B41/522 , C04B41/0072 , C04B41/009 , C04B41/4539 , C04B41/5024 , C04B41/5096 , C04B41/87 , C04B41/89
Abstract: Methods for repairing a defect in a multilayered coating on a silicon-containing substrate are provided, along with the resulting compared component. The method includes: applying a first patch slurry into the defect; drying the first patch slurry to form a dried first patch layer; applying a second patch slurry into the defect and on the dried first patch layer; and drying the second patch slurry to form a second dried patch layer.
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公开(公告)号：US20240026822A1
公开(公告)日：2024-01-25
申请号：US17869060
申请日：2022-07-20
Applicant: General Electric Company
Inventor： Lakshmi Narasimharao Jagata , Prateek Jalan , Veeraraju Vanapalli , Atanu Saha , Scott Alan Schimmels
IPC: F02C7/18
CPC classification number: F02C7/18 , F05D2260/213 , F05D2220/323
Abstract: A gas turbine engine having a compressor section, a combustion section, and a turbine section in serial flow arrangement to define a diffuser cavity between the compressor section and the combustor section, and an aft cavity. A compressor discharge pressure duct fluidly draws air from the diffuser cavity, passes it through a heat exchanger to cool the air, and then supplies the cooled air to the aft cavity.
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公开(公告)号：US11879411B2
公开(公告)日：2024-01-23
申请号：US17838603
申请日：2022-06-13
Applicant: General Electric Company
Inventor： Rajesh Kumar , Prateek Jalan , Kudum Shinde , Atanu Saha , Hiranya Kumar Nath , Ravindra Shankar Ganiger
CPC classification number: F02K3/02 , F02C7/12 , F05D2260/20
Abstract: A gas turbine engine includes a casing, a rotor assembly rotatably mounted within the casing, the rotor assembly comprising a forward rotor portion defining a forward rotor cavity and an aft rotor portion defining an aft rotor cavity, the aft rotor cavity being fluidly isolated from the forward rotor cavity, and a cooling system. The cooling system includes a forward cooling fluid supply, a forward supply line providing fluid communication between the forward cooling fluid supply and the forward rotor cavity, an aft cooling fluid supply, an aft supply line providing fluid communication between the aft cooling fluid supply and the aft rotor cavity, and a flow control system fluidly coupled to the forward supply line and the aft supply line for regulating a flow of forward cooling fluid and a flow of aft cooling fluid.
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4.发明申请公开(公告)号：US20220169551A1
公开(公告)日：2022-06-02
申请号：US17108657
申请日：2020-12-01
Applicant: General Electric Company
Inventor： Atanu Saha , Manepalli Satya Kishore , Nicholas Edward Antolino , Don Mark Lipkin , Mamatha Nagesh
Abstract: Methods for forming a sintered patch on a silicon-based substrate are disclosed. The methods include applying a patch slurry on the silicon-based substrate, drying the patch slurry on the silicon-based substrate to form a dried patch material, and sintering the dried patch material in an oxidizing atmosphere to form a sintered patch on the silicon-based substrate. The patch slurry includes a patch material containing silicates in a fluid carrier.
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公开(公告)号：US12044169B2
公开(公告)日：2024-07-23
申请号：US17871146
申请日：2022-07-22
Applicant: General Electric Company
Inventor： Vaishnav Raghuvaran , Atanu Saha , Rajesh Kumar , Scott Alan Schimmels
CPC classification number: F02C7/06 , F02C9/18 , F16N7/30 , F05D2260/606 , F05D2260/98 , F16N2210/02
Abstract: A gas turbine engine including a compressor section including a compressor and a turbine section located downstream of the compressor section. The turbine section including a high pressure turbine, a low pressure turbine, a sump positioned between the high pressure turbine and the low pressure turbine, and a rotating cross flow arrangement defining a plurality of guiding passages fluidly coupling the compressor to the sump.
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Patent Agency Ranking
公开(公告)号：US20220018293A1
公开(公告)日：2022-01-20
申请号：US17188780
申请日：2021-03-01
Applicant: General Electric Company
Inventor： Steven Mitchell Taylor , Vishnu Das K , Manish Singhal , Atanu Saha , Michael Anthony Thomas
Abstract: An example compressor bleed slot apparatus includes an annular compressor casing, a blade row mounted for rotation about a centerline axis inside the compressor casing, a bleed slot passing through the forward section of the compressor casing, wherein the bleed slot is bounded by inboard and outboard walls defined within the compressor casing, the bleed slot extending along a slot axis, at least a portion of the bleed slot lying within an axial extent of the blade row, an array of struts interconnecting the inboard and outboard walls, and an annular supplemental flange extending radially outward from the forward section of the compressor casing, wherein at least a portion of the supplemental flange is axially positioned within an axial extent of the bleed slot, wherein the supplemental flange includes a necked-down portion adjacent the forward section of the compressor casing, the necked-down portion positioned axially between an inlet of the bleed slot and an outlet of the bleed slot.
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公开(公告)号：US20210396181A1
公开(公告)日：2021-12-23
申请号：US17313538
申请日：2021-05-06
Applicant: General Electric Company
Inventor： Hrishikesh Keshavan , Atanu Saha , Margeaux Wallace , Mamatha Nagesh , Ambarish Jayant Kulkarni , Bernard Patrick Bewlay, JR.
Abstract: A sprayable thermal barrier coating powder mixture for a gas turbine engine includes: a dry composition having a low surface area ceramic powder having a median particle size distribution greater than 5 microns and less than 50 microns, and a high surface area ceramic powder having a median particle size distribution smaller than 5 microns, wherein the low surface area ceramic powder makes up at least 50% by weight of the dry composition of the sprayable thermal barrier coating powder mixture.
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公开(公告)号：US10981196B2
公开(公告)日：2021-04-20
申请号：US15533829
申请日：2015-12-01
Applicant: General Electric Company
Inventor： Atanu Saha , Gopi Chandran Ramachandran , Mamatha Nagesh , Shalini Thimmegowda , Bala Srinivasan Parthasarathy
IPC: B05D7/00 , B05D7/14 , B32B25/20 , C09D183/04 , F04D7/04 , F04D29/40 , B05D1/02 , B05D1/18 , F04D17/00 , B63H5/16 , F04D29/043 , F04D29/053 , F04D29/42 , F04D29/52 , C08G77/12 , C08G77/20
Abstract: A silicone bond coat composition having a viscosity of less than 1,600 centistokes is applied to substantially all external surfaces of the article and then cured. A liquid silicone elastomer outer coat composition comprising a high viscosity first liquid silicone elastomer formulation and a low viscosity second liquid silicone elastomer formulation is then applied and cured to provide a protected article having a complex shape. Optimal coatings result from a careful balancing of component viscosities. In an embodiment, the first formulation has a viscosity greater than 300,000 centistokes, and the second formulation has a viscosity less than 6,000 centistokes, and the liquid silicone elastomer outer coat composition comprises from about 60 to about 40 percent by weight of the first formulation and from about 40 to about 60 percent by weight of the second liquid silicone elastomer formulation.
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公开(公告)号：US20200240720A1
公开(公告)日：2020-07-30
申请号：US16828186
申请日：2020-03-24
Applicant: General Electric Company
Abstract: A gas turbine engine having a heat absorption device and an associated method are disclosed. The gas turbine engine includes a compressor having a compressor discharge nozzle, a combustor coupled to the compressor, a turbine coupled to the combustor and the compressor, a fluid flow passage fluidly coupling the compressor and the turbine and bypassing the combustor, and a heat absorption device disposed fluidly along the fluid flow passage at a first predefined location. The heat absorption device includes a casing having an inlet and an outlet, a flow path within the casing and extending between the inlet and the outlet, wherein the flow path directs an input bleed flow diverted from a fluid stream discharged from the compressor, and a phase change material hermetically sealed within the casing. The phase change material is separated from the flow path. The heat absorption device is configured to exchange heat between the phase change material and the input bleed flow to generate an output bleed flow of a different temperature than the input bleed flow and discharge the output bleed flow to a second predefined location different from the first predefined location.
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10.发明申请公开(公告)号：US20190277161A1
公开(公告)日：2019-09-12
申请号：US15916811
申请日：2018-03-09
Applicant: General Electric Company
Inventor： Vishnu Das K , Carlos Ivan Flores , Atanu Saha , Vinaykumar Shrimantrao Patil
Abstract: Various embodiments include a compressor casing and a method of assembly. The compressor casing comprises a first and an adjacent, second annular casing segments each comprising an annular radially-extending flange with mounting holes; at least one annular recess disposed on at least one annular side mating face of the adjacent flanges of the adjacent segments; at least one set of stress-relief holes disposed through at least one flange of the adjacent segments; and at least one annular leak-resistant plate disposed within the at least one annular recess having at least a third set of mounting holes. All sets of mounting holes are substantially aligned with each other and receive a plurality of respective fasteners, and the at least one annular plate is clamped between the adjacent segments and seals the at least one set of stress-relief holes for preventing leakage therethrough.
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