-
公开(公告)号：US11156455B2
公开(公告)日：2021-10-26
申请号：US16142425
申请日：2018-09-26
Applicant: General Electric Company
Inventor： Shalini Thimmegowda , K. G. V. Siva Kumar , Bhanu Kishore Battu , Vishwanath Thippeswamy , Richa Awasthi , Srinivasan Swaminathan
Abstract: Systems and methods for measuring the clearance gaps between rotating and stationary components of a turbomachine are provided. In one exemplary aspect, flexible and degradable sensing arrays that include a plurality of microwave sensors are utilized to sense the clearance gaps between rotating and stationary components of the turbomachine. Microwaves generated by a microwave generator are transmitted to the sensors. Upon rotation of the rotating components, the rotating components reflect the microwaves transmitted thereto. The microwave sensors capture the transmitted signal and also capture a reflected signal indicative of the transmitted signal reflected by the rotating components. The signals are then forwarded to a computing device for processing. The amplitude difference at the interference fringes between the superimposed signals is representative of the clearance gaps between the rotating and stationary components. After measuring the clearance gaps, the turbomachine may be operated and the degradable sensing array may be consumed.
-
2.发明申请公开(公告)号：US20200096329A1
公开(公告)日：2020-03-26
申请号：US16142425
申请日：2018-09-26
Applicant: General Electric Company
Inventor： Shalini Thimmegowda , K. G. V. Siva Kumar , Bhanu Kishore Battu , Vishwanath Thippeswamy , Richa Awasthi , Srinivasan Swaminathan
Abstract: Systems and methods for measuring the clearance gaps between rotating and stationary components of a turbomachine are provided. In one exemplary aspect, flexible and degradable sensing arrays that include a plurality of microwave sensors are utilized to sense the clearance gaps between rotating and stationary components of the turbomachine. Microwaves generated by a microwave generator are transmitted to the sensors. Upon rotation of the rotating components, the rotating components reflect the microwaves transmitted thereto. The microwave sensors capture the transmitted signal and also capture a reflected signal indicative of the transmitted signal reflected by the rotating components. The signals are then forwarded to a computing device for processing. The amplitude difference at the interference fringes between the superimposed signals is representative of the clearance gaps between the rotating and stationary components. After measuring the clearance gaps, the turbomachine may be operated and the degradable sensing array may be consumed.
-
公开(公告)号：US12270303B2
公开(公告)日：2025-04-08
申请号：US18196949
申请日：2023-05-12
Applicant: General Electric Company
Inventor： Srinivasan Swaminathan , Anand Madihalli Srinivasan , Shalini Thimmegowda , Ravindra Shankar Ganiger
Abstract: This disclosure is directed to seal assemblies for a turbomachine. The seal assemblies include stationary and rotating components and at least one interface between the stationary and rotating components. The seal assembly further includes a self-lubricating lattice element made of carbon or a carbon-based material. The self-lubricating lattice element may have a porous and compressible microstructure capable of retaining a liquid substance. During engine operation, the self-lubricating lattice element can compress and expel some portion of the liquid substance to form a liquid-containing layer between the rotating and stationary components of the seal assembly. Also described herein are self-lubricating wear sleeves for use in other portions of the turbomachine.
-
公开(公告)号：US20230323516A1
公开(公告)日：2023-10-12
申请号：US17839833
申请日：2022-06-14
Applicant: General Electric Company
Inventor： Srinivasan Swaminathan , Shalini Thimmegowda
CPC classification number: C22C21/16 , C22C27/06 , C22C16/00 , C22C27/04 , C22C19/03 , C22C19/07 , C22C9/00 , C23C30/005
Abstract: A high entropy alloy-based composition is provided that has the formula: (M1aM2bM3cM4dM5eM6f)CrAlY1-x-zZrxMoz where: each of M1, M2, M3, M4, M5, and M6 is a different alloying element selected from the group consisting of Ni, Co, Fe, Si, Mn, and Cu such that none of M1, M2, M3, M4, M5, and M6 are the same alloying element; 0.05≤a≤0.35; 0.05≤b≤0.35; 0.05≤c≤0.35; 0.05≤d≤0.35; 0.05≤e≤0.35; 0≤f≤0.35; a+b+c+d+e+f=1; 0≤x≤1; 0≤z≤1; and 0≤x+z≤1.
-
公开(公告)号：US20190009300A1
公开(公告)日：2019-01-10
申请号：US15642622
申请日：2017-07-06
Applicant: General Electric Company
Inventor： Anantharaman Mahalingam , Prabhakaran Manogharan , Shalini Thimmegowda , Eklavya Calla , Gopi Chandran Ramachandran
Abstract: A method for repairing a Ni-based alloy component is prepared. The method may include preparing a surface of the Ni-based alloy component for receiving a cold spray repair; spraying a stream of particles onto a the surface of the Ni-based alloy component to form a coating thereon; and removing any over-spray on the surface of the Ni-based alloy component. The particles may be formed from an alloy material having a melting point such that the particles are sprayed at a spray temperature that is less than the melting point of the alloy material.
-
Patent Agency Ranking
公开(公告)号：US20250163599A1
公开(公告)日：2025-05-22
申请号：US18542881
申请日：2023-12-18
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Srinivasan Swaminathan , Shalini Thimmegowda , Chirayu Pradip Inamdar , Guru Venkata Dattu Jonnalagadda , Udaya Bhaskar Pamidimarri
Abstract: An electroforming system and method includes disposing a cathode defining a mandrel within an electrolytic solution, and applying a voltage to the cathode in the electrolytic solution to form a coating on the cathode. The coating can be formed as an amorphous coating, having no discernible grain boundaries or no discernible long-range order.
-
公开(公告)号：US20240318570A1
公开(公告)日：2024-09-26
申请号：US18189379
申请日：2023-03-24
Applicant: General Electric Company
Inventor： Ravindra Shankar Ganiger , David Raju Yamarthi , Chandrashekhar Kandukuri , Deepak Trivedi , Narendra Anand Hardikar , Vidyashankar Ramasastry Buravalla , Steven Douglas Johnson , Amit Goyal , Grant Robert Portune , Himanshu Gupta , Srinivasan Swaminathan , Shalini Thimmegowda , Guru Venkata Dattu Jonnalagadda , Shalabh Saxena , Prateek Jalan
IPC: F01D11/02
CPC classification number: F01D11/025 , F05D2240/53 , F05D2240/55 , F05D2260/38
Abstract: A turbine engine is provided. The turbine engine defines an axial direction and a radial direction, and includes: a rotor; a stator comprising a carrier; a seal assembly disposed between the rotor and the stator, the seal assembly defining a high-pressure side and a low-pressure side and comprising a plurality of seal segments, the plurality of seal segments including a seal segment having a seal face forming a fluid bearing with the rotor, a lip, and a body, the lip extending from the body along the axial direction of the turbine engine on the high-pressure side and including an outer pressurization surface along the radial direction of the turbine engine; and a seal support assembly, the seal support assembly comprising a spring arrangement extending between the carrier and the first seal segment to counter a pressure on the outer pressurization surface during operation of the turbine engine.
-
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.
-
公开(公告)号：US12241375B2
公开(公告)日：2025-03-04
申请号：US18189379
申请日：2023-03-24
Applicant: General Electric Company
Inventor： Ravindra Shankar Ganiger , David Raju Yamarthi , Chandrashekhar Kandukuri , Deepak Trivedi , Narendra Anand Hardikar , Vidyashankar Ramasastry Buravalla , Steven Douglas Johnson , Amit Goyal , Grant Robert Portune , Himanshu Gupta , Srinivasan Swaminathan , Shalini Thimmegowda , Guru Venkata Dattu Jonnalagadda , Shalabh Saxena , Prateek Jalan
IPC: F01D11/02
Abstract: A turbine engine is provided. The turbine engine defines an axial direction and a radial direction, and includes: a rotor; a stator comprising a carrier; a seal assembly disposed between the rotor and the stator, the seal assembly defining a high-pressure side and a low-pressure side and comprising a plurality of seal segments, the plurality of seal segments including a seal segment having a seal face forming a fluid bearing with the rotor, a lip, and a body, the lip extending from the body along the axial direction of the turbine engine on the high-pressure side and including an outer pressurization surface along the radial direction of the turbine engine; and a seal support assembly, the seal support assembly comprising a spring arrangement extending between the carrier and the first seal segment to counter a pressure on the outer pressurization surface during operation of the turbine engine.
-
公开(公告)号：US20230383666A1
公开(公告)日：2023-11-30
申请号：US18196949
申请日：2023-05-12
Applicant: General Electric Company
Inventor： Srinivasan Swaminathan , Anand Madihalli Srinivasan , Shalini Thimmegowda , Ravindra Shankar Ganiger
CPC classification number: F01D11/001 , F01D25/183 , F05D2300/224 , F05D2260/98 , F05D2240/55
Abstract: This disclosure is directed to seal assemblies for a turbomachine. The seal assemblies include stationary and rotating components and at least one interface between the stationary and rotating components. The seal assembly further includes a self-lubricating lattice element made of carbon or a carbon-based material. The self-lubricating lattice element may have a porous and compressible microstructure capable of retaining a liquid substance. During engine operation, the self-lubricating lattice element can compress and expel some portion of the liquid substance to form a liquid-containing layer between the rotating and stationary components of the seal assembly. Also described herein are self-lubricating wear sleeves for use in other portions of the turbomachine.
-
-
-
-
-
-
-
-
-
Search Results
12
records
(took 0.01 seconds)
