Patents by Inventor Richa Awasthi
Richa Awasthi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240018878Abstract: Variable sleeve clearance control systems for gas turbine engines are disclosed. An example variable sleeve clearance control system for a gas turbine engine includes a sleeve comprising a first end and a second end, the first end of the sleeve coupled to a first spring that biases the sleeve inward, and the second end of the sleeve coupled to a second spring that biases the sleeve outward, a proximity sensor to measure a clearance width, and a controller for each of the first and second springs, the controller to obtain the measured clearance width from the proximity sensor and determine a response of the first and second springs.Type: ApplicationFiled: August 31, 2022Publication date: January 18, 2024Inventors: Anusrita RAYCHAUDHURI, Ravindra Shankar GANIGER, Bhanu BATTU, Richa AWASTHI, Nilesh VAROTE, Vidyashankar BURAVALLA
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Publication number: 20230340887Abstract: Clearance control systems with electromagnetic actuators are disclosed. An example electromagnetically-actuated clearance control system for a gas turbine engine comprises an electromagnetic coil coupled to a first end of a facesheet, the electromagnetic coil to generate a magnetic field in response to a connection of a power supply, a ferromagnetic sheet coupled to a second end of the facesheet, the ferromagnetic sheet drawn radially-inward toward the electromagnetic coil when the magnetic field is generated, a first end of the ferromagnetic sheet coupled to a first compression spring and a second end of the ferromagnetic sheet coupled to a second compression spring, the first and second compression springs to compress in response to the ferromagnetic sheet being drawn radially-inward.Type: ApplicationFiled: May 22, 2023Publication date: October 26, 2023Inventors: Venkata Jayateja Nedunuri, Abhijeet Yadav, Shawn P. Riley, Richa Awasthi, Nilesh Vilas Varote, Ravindra Shankar Ganiger, Anusrita Raychaudhuri
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Patent number: 11655724Abstract: Clearance control systems with electromagnetic actuators are disclosed. An example electromagnetically-actuated clearance control system for a gas turbine engine comprises an electromagnetic coil coupled to a first end of a facesheet, the electromagnetic coil to generate a magnetic field in response to a connection of a power supply, a ferromagnetic sheet coupled to a second end of the facesheet, the ferromagnetic sheet drawn radially-inward toward the electromagnetic coil when the magnetic field is generated, a first end of the ferromagnetic sheet coupled to a first compression spring and a second end of the ferromagnetic sheet coupled to a second compression spring, the first and second compression springs to compress in response to the ferromagnetic sheet being drawn radially-inward.Type: GrantFiled: June 14, 2022Date of Patent: May 23, 2023Assignee: General Electric CompanyInventors: Venkata Jayateja Nedunuri, Abhijeet Yadav, Shawn P. Riley, Richa Awasthi, Nilesh Vilas Varote, Ravindra Shankar Ganiger, Anusrita Raychaudhuri
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Patent number: 11156455Abstract: 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.Type: GrantFiled: September 26, 2018Date of Patent: October 26, 2021Assignee: General Electric CompanyInventors: Shalini Thimmegowda, K. G. V. Siva Kumar, Bhanu Kishore Battu, Vishwanath Thippeswamy, Richa Awasthi, Srinivasan Swaminathan
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Publication number: 20200096329Abstract: 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.Type: ApplicationFiled: September 26, 2018Publication date: March 26, 2020Inventors: Shalini Thimmegowda, K. G. V. Siva Kumar, Bhanu Kishore Battu, Vishwanath Thippeswamy, Richa Awasthi, Srinivasan Swaminathan
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Patent number: 10583913Abstract: An aircraft spinner assembly includes collar stud joints connecting spinner to forward flange connected to fan rotor disk. Collar stud joint is operable to push out spinner when stud is un-torqued. Collar may be attached to stud disposed through spinner bolt hole in spinner and collar disposed in counterbore of spinner bolt hole. An aft stud thread on collar stud may be threaded into aft nut which may be swaged into flange bolt hole in forward flange. A washer may be in counterbore between collar and spinner and made from low friction and/or sacrificial material. A forward radial clearance may surround stud between stud and spinner. A forward nut may be threaded onto forward stud threads on forward end of the collar stud and abut spinner. External aft stud threads may be on collar studs and threaded into internal flange threads within flange bolt holes in forward flange.Type: GrantFiled: March 14, 2017Date of Patent: March 10, 2020Assignee: General Electric CompanyInventors: Abhishek Goverdhan, Ravindra Shankar Ganiger, Richa Awasthi, Viswanadha Gupta Sakala, Vidya Lokammanahalli Shivashankar
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Patent number: 10502133Abstract: A fastener cover assembly is disclosed. The cover assembly includes a turbomachinery component having an outer surface exposed to an air flow path; at least one recess formed in the outer surface; a fastener contained in the at least one recess; and a fastener cover secured in the at least one recess, the cover having an outer surface substantially flush with the outer surface of the component to minimize air flow disruption.Type: GrantFiled: June 12, 2017Date of Patent: December 10, 2019Assignee: General Electric CompanyInventors: Richa Awasthi, Bhanu Kishore Battu, Viswanadha Gupta Sakala, Michael Jason Bishop
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Publication number: 20180355796Abstract: A fastener cover assembly is disclosed. The cover assembly includes a turbomachinery component having an outer surface exposed to an air flow path; at least one recess formed in the outer surface; a fastener contained in the at least one recess; and a fastener cover secured in the at least one recess, the cover having an outer surface substantially flush with the outer surface of the component to minimize air flow disruption.Type: ApplicationFiled: June 12, 2017Publication date: December 13, 2018Inventors: Richa Awasthi, Bhanu Kishore Battu, Viswanadha Gupta Sakala, Michael Jason Bishop
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Publication number: 20180265181Abstract: An aircraft spinner assembly includes collar stud joints connecting spinner to forward flange connected to fan rotor disk. Collar stud joint is operable to push out spinner when stud is un-torqued. Collar may be attached to stud disposed through spinner bolt hole in spinner and collar disposed in counterbore of spinner bolt hole. An aft stud thread on collar stud may be threaded into aft nut which may be swaged into flange bolt hole in forward flange. A washer may be in counterbore between collar and spinner and made from low friction and/or sacrificial material. A forward radial clearance may surround stud between stud and spinner. A forward nut may be threaded onto forward stud threads on forward end of the collar stud and abut spinner. External aft stud threads may be on collar studs and threaded into internal flange threads within flange bolt holes in forward flange.Type: ApplicationFiled: March 14, 2017Publication date: September 20, 2018Inventors: Abhishek Goverdhan, Ravindra Shankar Ganiger, Richa Awasthi, Viswanadha Gupta Sakala, Vidya Lokammanahalli Shivashankar
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Patent number: 9388710Abstract: An exhaust diffuser arrangement for a turbine system includes an inlet for receiving a flow proximate a last stage bucket of the turbine system, the flow flowing in a first flow direction. Also included is a flow redirecting component. The flow redirecting component includes a first wall having a first side of a concave surface geometry for redirecting the flow and a second side of a convex surface geometry. The flow redirecting component also includes a second wall spaced downstream of the first wall and having at least one flow exit for reducing a boundary layer along the second side of the first wall.Type: GrantFiled: October 1, 2012Date of Patent: July 12, 2016Assignee: General Electric CompanyInventors: Sachin Kumar Rai, Richa Awasthi, Shruti Kulkarni, Moorthi Subramaniyan
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Publication number: 20140195347Abstract: The present disclosure relates to a tool for identifying and designating a status indicator to a transaction account and/or transaction account holder. The system may be configured to collect data associated with a plurality of transaction accounts and perform a deterministic data analysis on the data to identify transaction accounts to associate with one of two groups. Also, the system may be configured to perform a probabilistic data analysis to create a probabilistic data analysis percentile score on at least one of the identified two groups to re-allocate the transaction accounts into one of the two groups. This re-allocation may be based on the probabilistic data analysis percentile score being above a predetermined threshold. The system may be configured to contact holders of the transaction accounts associated with at least one of the two groups.Type: ApplicationFiled: June 27, 2013Publication date: July 10, 2014Inventors: Urvi Adatia, Richa Awasthi, Manpreet Dhot, Amit Soni
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Publication number: 20140093352Abstract: An exhaust diffuser arrangement for a turbine system includes an inlet for receiving a flow proximate a last stage bucket of the turbine system, the flow flowing in a first flow direction. Also included is a flow redirecting component. The flow redirecting component includes a first wall having a first side of a concave surface geometry for redirecting the flow and a second side of a convex surface geometry. The flow redirecting component also includes a second wall spaced downstream of the first wall and having at least one flow exit for reducing a boundary layer along the second side of the first wall.Type: ApplicationFiled: October 1, 2012Publication date: April 3, 2014Applicant: GENERAL ELECTRIC COMPANYInventors: Sachin Kumar Rai, Richa Awasthi, Shruti Kulkarni, Moorthi Subramaniyan
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Patent number: 8278792Abstract: Embodiments of the invention relate generally to lead path configurations in generator rotors and, more particularly, to a support apparatus for a main lead and generator rotors incorporating such a support apparatus. In one embodiment, the invention provides a generator rotor comprising: a rotor shaft including an internal conductive bore; a main terminal electrically connected to the conductive bore; a plurality of rotor coil windings, including a plurality of coil end straps; a non-metallic support channel comprising: an elongate, axially-oriented channel; and at least one protrusion extending from the elongate, axially-oriented channel to a position between two of the plurality of coil end straps; and a main lead extending from the main terminal, through the elongate, axially-oriented channel of the non-metallic support channel, to at least one of the plurality of coil end straps.Type: GrantFiled: May 16, 2012Date of Patent: October 2, 2012Assignee: General Electric CompanyInventors: Sanjeev Kumar Jha, Richa Awasthi, James Jonathan Grant, Madhu Bharadwaj Sridharan
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Publication number: 20120228973Abstract: Embodiments of the invention relate generally to lead path configurations in generator rotors and, more particularly, to a support apparatus for a main lead and generator rotors incorporating such a support apparatus. In one embodiment, the invention provides a generator rotor comprising: a rotor shaft including an internal conductive bore; a main terminal electrically connected to the conductive bore; a plurality of rotor coil windings, including a plurality of coil end straps; a non-metallic support channel comprising: an elongate, axially-oriented channel; and at least one protrusion extending from the elongate, axially-oriented channel to a position between two of the plurality of coil end straps; and a main lead extending from the main terminal, through the elongate, axially-oriented channel of the non-metallic support channel, to at least one of the plurality of coil end straps.Type: ApplicationFiled: May 16, 2012Publication date: September 13, 2012Applicant: GENERAL ELECTRIC COMPANYInventors: Sanjeev Kumar Jha, Richa Awasthi, James Jonathan Grant, Madhu Bharadwaj Sridharan
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Patent number: 8222780Abstract: Embodiments of the invention relate generally to lead path configurations in generator rotors and, more particularly, to a support apparatus for a main lead and generator rotors incorporating such a support apparatus. In one embodiment, the invention provides a support apparatus for a main lead of a generator rotor, the support apparatus comprising: a cross-sectionally L-shaped body having: a first portion; and a second portion substantially perpendicular to the first portion, wherein the first portion includes an arcuate first surface for interfacing with a centering ring of the generator rotor and an arcuate second surface adapted to be substantially parallel to a rotor shaft of the generator rotor; a main lead passage extending along the arcuate first surface of the first portion and through the second portion.Type: GrantFiled: October 25, 2010Date of Patent: July 17, 2012Assignee: General Electric CompanyInventors: Sanjeev Kumar Jha, Richa Awasthi, James Jonathan Grant, Madhu Bharadwaj Sridharan
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Publication number: 20120098385Abstract: Embodiments of the invention relate generally to lead path configurations in generator rotors and, more particularly, to a support apparatus for a main lead and generator rotors incorporating such a support apparatus. In one embodiment, the invention provides a support apparatus for a main lead of a generator rotor, the support apparatus comprising: a cross-sectionally L-shaped body having: a first portion; and a second portion substantially perpendicular to the first portion, wherein the first portion includes an arcuate first surface for interfacing with a centering ring of the generator rotor and an arcuate second surface adapted to be substantially parallel to a rotor shaft of the generator rotor; a main lead passage extending along the arcuate first surface of the first portion and through the second portion.Type: ApplicationFiled: October 25, 2010Publication date: April 26, 2012Applicant: GENERAL ELECTRIC COMPANYInventors: Sanjeev Kumar Jha, Richa Awasthi, James Jonathan Grant, Madhu Bharadwaj Sridharan