Patents by Inventor Prateek Jalan
Prateek Jalan 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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Patent number: 12006829Abstract: A turbomachine includes a rotor shaft having an outer surface, a seal carrier forming an annulus about the rotor shaft, and a seal member. The seal carrier at least partially defines a pressure chamber. The turbomachine further includes a seal member support system including a flex body having a contact portion in contact with the seal carrier, and a flex portion extending from the contact portion towards the outer surface of the rotor shaft. The flex portion is coupled to the seal member and is configured to hold the seal member at a radial distance away from the outer surface of the rotor shaft when a pressure inside the pressure chamber is equal to or below a minimum pressure threshold value, and to flex and move the seal member towards the outer surface of the rotor when the pressure inside the pressure chamber exceeds the minimum pressure threshold value.Type: GrantFiled: May 15, 2023Date of Patent: June 11, 2024Assignee: General Electric CompanyInventors: David Raju Yamarthi, Ravindra Shankar Ganiger, Narendra Anand Hardikar, Rahul Anil Bidkar, Deepak Trivedi, Prateek Jalan
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Patent number: 12006833Abstract: A turbomachine including a turbine rotor, a compressor rotor, and a shaft, and at least one balance weight assembly connected to the shaft. The shaft drivingly connects the turbine rotor with the compressor rotor to rotate the compressor rotor about a rotational axis when the turbine rotor rotates about the rotational axis. The at least one balance weight assembly including a first chamber, at least one additional chamber, and a balance weight movable between the first chamber and the at least one additional chamber.Type: GrantFiled: September 2, 2022Date of Patent: June 11, 2024Assignee: GENERAL ELECTRIC COMPANYInventors: Prateek Jalan, Kudum Shinde, Milind Dhabade, Ravindra Shankar Ganiger, Tyler F. Hooper
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Patent number: 11988096Abstract: A seal assembly for a rotary machine, such as a turbine engine, may include a seal rotor comprising a rotor face, a seal slider comprising a slider face, a seal stator, wherein the seal slider is slidably coupled to the seal stator, and wherein the slider face and the rotor face define a primary seal. The seal slider may be configured to slidably engage and retract the slider face with respect to the rotor face. The seal assembly may further include a secondary seal disposed between the seal slider and the seal stator. The secondary seal may be configured to compress and rebound and/or to expand and rebound, over at least a portion of a range of motion of the seal slider.Type: GrantFiled: June 16, 2022Date of Patent: May 21, 2024Assignees: General Electric Company, General Electric Deutschland Holding GmbHInventors: Ravindra Shankar Ganiger, Neelesh Nandkumar Sarawate, Rahul Anil Bidkar, Narendra Anand Hardikar, Kevin Randall McManus, Steven Douglas Johnson, Prateek Jalan, Antonio Guijarro Valencia, Julius John Montgomery, Rodrigo Rodriguez Erdmenger, Jose Maria Rey Villazon
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Publication number: 20240133308Abstract: A rotary machine, such as a turbomachine of a gas turbine engine, for example, including a rotor and a rotor seal assembly. The rotor is rotatable about a rotational axis and has a rotor seal face. The rotor seal assembly includes a seal body, one or more primary fluid conduits formed in the seal body, and a retraction assembly. The seal body has a seal face and is positionable to form a fluid-bearing gap between the seal face of the seal body and the rotor seal face. The one or more primary fluid conduits are fluidly connected to the fluid-bearing gap to supply a fluid to the fluid-bearing gap. The retraction assembly is connected to the seal body to move the seal body in a retraction direction away from the rotor seal face.Type: ApplicationFiled: May 10, 2023Publication date: April 25, 2024Inventors: David Yamarthi, Prateek Jalan, Grant Portune, Steven Douglas Johnson, Mark L. Hopper, Richard A. Wesling, Ravindra Shankar Ganiger
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Publication number: 20240076987Abstract: A turbomachine including a turbine rotor, a compressor rotor, and a shaft, and at least one balance weight assembly connected to the shaft. The shaft drivingly connects the turbine rotor with the compressor rotor to rotate the compressor rotor about a rotational axis when the turbine rotor rotates about the rotational axis. The at least one balance weight assembly including a first chamber, at least one additional chamber, and a balance weight movable between the first chamber and the at least one additional chamber.Type: ApplicationFiled: September 2, 2022Publication date: March 7, 2024Inventors: Prateek Jalan, Kudum Shinde, Milind Dhabade, Ravindra Shankar Ganiger, Tyler F. Hooper
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Publication number: 20240026822Abstract: 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.Type: ApplicationFiled: July 20, 2022Publication date: January 25, 2024Inventors: Lakshmi Narasimharao Jagata, Prateek Jalan, Veeraraju Vanapalli, Atanu Saha, Scott Alan Schimmels
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Patent number: 11879411Abstract: 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.Type: GrantFiled: June 13, 2022Date of Patent: January 23, 2024Assignee: General Electric CompanyInventors: Rajesh Kumar, Prateek Jalan, Kudum Shinde, Atanu Saha, Hiranya Kumar Nath, Ravindra Shankar Ganiger
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Publication number: 20230323835Abstract: 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.Type: ApplicationFiled: June 13, 2022Publication date: October 12, 2023Inventors: Rajesh Kumar, Prateek Jalan, Kudum Shinde, Atanu Saha, Hiranya Kumar Nath, Ravindra Shankar Ganiger
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Publication number: 20230279781Abstract: A seal assembly for a rotary machine, such as a turbine engine, may include a seal rotor comprising a rotor face, a seal slider comprising a slider face, a seal stator, wherein the seal slider is slidably coupled to the seal stator, and wherein the slider face and the rotor face define a primary seal. The seal slider may be configured to slidably engage and retract the slider face with respect to the rotor face. The seal assembly may further include a secondary seal disposed between the seal slider and the seal stator. The secondary seal may be configured to compress and rebound and/or to expand and rebound, over at least a portion of a range of motion of the seal slider.Type: ApplicationFiled: June 16, 2022Publication date: September 7, 2023Inventors: Ravindra Shankar Ganiger, Neelesh Nandkumar Sarawate, Rahul Anil Bidkar, Narendra Anand Hardikar, Kevin Randall McManus, Steven Douglas Johnson, Prateek Jalan, Antonio Guijarro Valencia, Julius John Montgomery, Rodrigo Rodriguez Erdmenger, Jose Maria Rey Villazon
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Patent number: 10756598Abstract: A method and apparatus for cooling a rotor assembly includes a rotor core having a rotatable shaft and defining at least one rotor post, a winding wound around the post, and at least one coolant conduit supported by the rotor core and in a thermally conductive relationship with a portion of the winding.Type: GrantFiled: October 2, 2017Date of Patent: August 25, 2020Assignee: GE Aviation Systems LLCInventors: Mohammad Khaja Mohiddin Shaik, David Raju Yamarthi, Balamurugan Sridharan, Anirban Chatterjee, Prateek Jalan
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Publication number: 20190190336Abstract: A method and apparatus for cooling a rotor assembly includes a rotor core having a rotatable shaft and defining at least one rotor post, and a set of windings wound around the post and including a coolant conduit relative to the set of windings and wherein the coolant conduit is in a thermally conductive relationship with a portion of the windings.Type: ApplicationFiled: December 20, 2017Publication date: June 20, 2019Inventors: Balamurugan Sridharan, Prateek Jalan, Anirban Chatterjee, David Raju Yamarthi, Mohammad Khaja Mohiddin Shaik
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Publication number: 20190103786Abstract: A method and apparatus for cooling a rotor assembly includes a rotor core having a rotatable shaft and defining at least one rotor post, a winding wound around the post, and at least one coolant conduit supported by the rotor core and in a thermally conductive relationship with a portion of the winding.Type: ApplicationFiled: October 2, 2017Publication date: April 4, 2019Inventors: Mohammad Khaja Mohiddin Shaik, David Raju Yamarthi, Balamurugan Sridharan, Anirban Chatterjee, Prateek Jalan