Patents by Inventor Balakrishnan Ponnuraj
Balakrishnan Ponnuraj 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: 11815018Abstract: A box-shaped air intake silencer with vertical baffles for a gas turbine system. The box-shaped silencer has a silencer housing having opposing ends with a first end closed and a second end opened to permit passage of air. Opposing sidewalls extend between the first end and the second end with each of the sidewalls operative to receive a perpendicular flow of intake air. A silencer having vertically, spaced baffles are disposed within the housing. A first end of the baffles face the first end of the housing and a second end of the baffles faces the second end of the housing. Each of the baffles extend horizontally between the first end and the second end of the housing. The baffles receive the perpendicular flow of intake air proximate the first end of the housing and direct the intake air towards the second end of the housing for passage therethrough.Type: GrantFiled: December 15, 2021Date of Patent: November 14, 2023Assignee: GENERAL ELECTRIC COMPANYInventors: Ravinder Yerram, Quoc Hoai Nguyen, Balakrishnan Ponnuraj
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Publication number: 20230184164Abstract: A box-shaped air intake silencer with vertical baffles for a gas turbine system. The box-shaped silencer has a silencer housing having opposing ends with a first end closed and a second end opened to permit passage of air. Opposing sidewalls extend between the first end and the second end with each of the sidewalls operative to receive a perpendicular flow of intake air. A silencer having vertically, spaced baffles are disposed within the housing. A first end of the baffles face the first end of the housing and a second end of the baffles faces the second end of the housing. Each of the baffles extend horizontally between the first end and the second end of the housing. The baffles receive the perpendicular flow of intake air proximate the first end of the housing and direct the intake air towards the second end of the housing for passage therethrough.Type: ApplicationFiled: December 15, 2021Publication date: June 15, 2023Applicant: GENERAL ELECTRIC COMPANYInventors: RAVINDER YERRAM, QUOC HOAI NGUYEN, BALAKRISHNAN PONNURAJ
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Patent number: 11643966Abstract: Control of low pressure recoup air in a gas turbine engine disposed in a gas turbine enclosure with low pressure recoup air piping coupled to a gas turbine combustion exhaust and gas turbine engine enclosure is disclosed. A first valve of the piping controls a flow of the recoup air to the gas turbine combustion exhaust. A second valve of the piping diverts the recoup air to the enclosure for eventual flow to the air intake. A controller controls the flow of the recoup air from the piping to the exhaust and/or the enclosure as a function of ambient and air intake temperature measurements, and a predetermined temperature requirement having an ambient temperature constraint and an air intake temperature differential constraint.Type: GrantFiled: August 12, 2021Date of Patent: May 9, 2023Assignee: GENERAL ELECTRIC COMPANYInventors: Ravinder Yerram, Venkata Satyanarayana Bandaru, Balakrishnan Ponnuraj, Keith Fisher
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Publication number: 20230046896Abstract: Control of low pressure recoup air in a gas turbine engine disposed in a gas turbine enclosure with low pressure recoup air piping coupled to a gas turbine combustion exhaust and gas turbine engine enclosure is disclosed. A first valve of the piping controls a flow of the recoup air to the gas turbine combustion exhaust. A second valve of the piping diverts the recoup air to the enclosure for eventual flow to the air intake. A controller controls the flow of the recoup air from the piping to the exhaust and/or the enclosure as a function of ambient and air intake temperature measurements, and a predetermined temperature requirement having an ambient temperature constraint and an air intake temperature differential constraint.Type: ApplicationFiled: August 12, 2021Publication date: February 16, 2023Applicant: GENERAL ELECTRIC COMPANYInventors: RAVINDER YERRAM, VENKATA SATYANARAYANA BANDARU, BALAKRISHNAN PONNURAJ, KEITH FISHER
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Patent number: 11578621Abstract: One or more cooling systems for ventilating a turbine and rotary shaft of a gas turbine system is provided. The gas turbine system includes a gas turbine engine and a turbine exhaust collector in separate enclosures. A first cooling system includes an educator that sucks exhaust gas through a diffuser and directs it out of the turbine exhaust collector enclosure based on suction pressure created from the high velocity of exhaust gas. A second cooling system include struts that enable the exhaust gas to flow from the diffusers to a ventilation flow stack. A third cooling system includes exhaust gas sucked from an opening to a top duct based on suction pressure created from the rotation of the rotary shaft disposed about a coupling. A guideway associated with the third cooling system also directs the exhaust gas to flow to the top duct.Type: GrantFiled: April 8, 2020Date of Patent: February 14, 2023Assignee: General Electric CompanyInventors: Ravinder Yerram, Balakrishnan Ponnuraj, Vineet Sethi, Jose Emmanuel Guillen, Tho Vankhanh Nguyen, Douglas Alan Jones, Abhinash Reddy Konatham
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Publication number: 20230045567Abstract: One or more cooling systems for ventilating a turbine and rotary shaft of a gas turbine system is provided. The gas turbine system includes a gas turbine engine and a turbine exhaust collector in separate enclosures. A first cooling system includes an educator that sucks exhaust gas through a diffuser and directs it out of the turbine exhaust collector enclosure based on suction pressure created from the high velocity of exhaust gas. A second cooling system include struts that enable the exhaust gas to flow from the diffusers to a ventilation flow stack. A third cooling system includes exhaust gas sucked from an opening to a top duct based on suction pressure created from the rotation of the rotary shaft disposed about a coupling. A guideway associated with the third cooling system also directs the exhaust gas to flow to the top duct.Type: ApplicationFiled: October 18, 2022Publication date: February 9, 2023Inventors: Ravinder Yerram, Balakrishnan Ponnuraj, Vineet Sethi, Jose Emmanuel Guillen, Tho Vankhanh Nguyen, Douglas Alan Jones, Abhinash Reddy Konatham
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Patent number: 11512640Abstract: A turbine ventilation system includes a controller that is coupled to an actuator that is coupled to a vane that is disposed across an intake port between a gas turbine enclosure and the turbine ventilation system. The controller can cause the actuator to change a position of the vane to alter an air flow from the turbine ventilation system into the gas turbine enclosure based upon feedback from one or more sensors disposed within the gas turbine enclosure.Type: GrantFiled: February 12, 2020Date of Patent: November 29, 2022Assignee: General Electric CompanyInventors: Ravinder Yerram, Randall John Kleen, Richard Michael Watkins, Balakrishnan Ponnuraj
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Publication number: 20220325667Abstract: A system for cooling a load coupling coupled to a gas turbine and disposed within an exhaust housing is provided. The system includes a shroud configured to be mounted about the load coupling, the shroud defining an inlet passage between the shroud and the load coupling and an outlet passage between the exhaust housing and the shroud. The system also includes a set of blades configured to couple to the load coupling. The set of blades are angled to draw air into the inlet passage as the set of blades rotate with the load coupling.Type: ApplicationFiled: April 13, 2021Publication date: October 13, 2022Inventors: Gerardo Plata, Jorge Mario Rochin Machado, Ravinder Yerram, Balakrishnan Ponnuraj, Tho Vankhanh Nguyen
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Publication number: 20210317784Abstract: One or more cooling systems for ventilating a turbine and rotary shaft of a gas turbine system is provided. The gas turbine system includes a gas turbine engine and a turbine exhaust collector in separate enclosures. A first cooling system includes an educator that sucks exhaust gas through a diffuser and directs it out of the turbine exhaust collector enclosure based on suction pressure created from the high velocity of exhaust gas. A second cooling system include struts that enable the exhaust gas to flow from the diffusers to a ventilation flow stack. A third cooling system includes exhaust gas sucked from an opening to a top duct based on suction pressure created from the rotation of the rotary shaft disposed about a coupling. A guideway associated with the third cooling system also directs the exhaust gas to flow to the top duct.Type: ApplicationFiled: April 8, 2020Publication date: October 14, 2021Inventors: Ravinder Yerram, Balakrishnan Ponnuraj, Vineet Sethi, Jose Emmanuel Guillen, Tho Vankhanh Nguyen, Douglas Alan Jones, Abhinash Reddy Konatham
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Publication number: 20210246830Abstract: A turbine ventilation system includes a controller that is coupled to an actuator that is coupled to a vane that is disposed across an intake port between a gas turbine enclosure and the turbine ventilation system. The controller can cause the actuator to change a position of the vane to alter an air flow from the turbine ventilation system into the gas turbine enclosure based upon feedback from one or more sensors disposed within the gas turbine enclosure.Type: ApplicationFiled: February 12, 2020Publication date: August 12, 2021Inventors: Ravinder Yerram, Randall John Kleen, Richard Michael Watkins, Balakrishnan Ponnuraj
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Patent number: 10697637Abstract: A gas turbine system includes a plenum that includes an inlet and an outlet. The inlet is configured to receive a flow of oxidant and the outlet is configured to direct the flow of oxidant in a downstream direction. Additionally, a support system is coupled to the plenum and to a cone. The support system enables the cone to move along the support system from a first position to a second position. The cone includes an upstream end and the upstream end is removably coupled to the outlet of the plenum in the first position. When the cone is in the first position, the cone is configured to direct the flow of oxidant in the downstream direction to a gas turbine engine. The upstream end is disposed upstream of the outlet and is decoupled from the outlet when the cone is in the second position.Type: GrantFiled: November 22, 2017Date of Patent: June 30, 2020Assignee: General Electric CompanyInventors: Ravinder Yerram, Balakrishnan Ponnuraj, Yalid Mariluz Lopez Moctezuma, Donald Gordon Laing, Gerardo Plata, Timothy Martin Christensen
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Patent number: 10550729Abstract: A gas turbine exhaust diffuser is configured to be at least partially disposed within an exhaust collector. The diffuser also includes an inner wall configured to extend to a back wall of the exhaust collector, an outer wall circumferentially disposed about the inner wall along a portion of the collector, and an inlet between the upstream end of the inner and outer walls. The inlet is configured to receive an exhaust flow from a gas turbine engine. An outlet for the exhaust is located between the inner wall and a downstream end of the outer wall. The outer wall is asymmetrically shaped so that an opening between the outlet and the back wall of the exhaust collector is larger on a first lateral side of the diffuser adjacent an exhaust exit of the collector than an opposite lateral side of the diffuser.Type: GrantFiled: February 22, 2017Date of Patent: February 4, 2020Assignee: General Electric CompanyInventors: Przemyslaw Sebastian Drezek, Marcin Rafal Abramowicz, Fernando Lopez Parra, Balakrishnan Ponnuraj
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Patent number: 10533496Abstract: A system includes a modularized air inlet system. The modularized air inlet system includes an air filter house section configured to receive air via an air inlet. The modularized air inlet system also includes a transition/silencer section configured to direct the air from the modularized air inlet system, via an air outlet, into an air inlet plenum coupled to a gas turbine engine enclosure. The modularized air inlet system is configured to couple directly to the air inlet plenum and the gas turbine enclosure without an expansion joint disposed between the modularized air inlet system and the air inlet plenum.Type: GrantFiled: July 28, 2016Date of Patent: January 14, 2020Assignee: GENERAL ELECTRIC COMPANYInventors: Donald Gordon Laing, Eric Tracy Watson, Balakrishnan Ponnuraj, Ravinder Yerram
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Publication number: 20190154261Abstract: A gas turbine system includes a plenum that includes an inlet and an outlet. The inlet is configured to receive a flow of oxidant and the outlet is configured to direct the flow of oxidant in a downstream direction. Additionally, a support system is coupled to the plenum and to a cone. The support system enables the cone to move along the support system from a first position to a second position. The cone includes an upstream end and the upstream end is removably coupled to the outlet of the plenum in the first position. When the cone is in the first position, the cone is configured to direct the flow of oxidant in the downstream direction to a gas turbine engine. The upstream end is disposed upstream of the outlet and is decoupled from the outlet when the cone is in the second position.Type: ApplicationFiled: November 22, 2017Publication date: May 23, 2019Inventors: Ravinder Yerram, Balakrishnan Ponnuraj, Yalid Mariluz Lopez Moctezuma, Donald Gordon Laing, Gerardo Plata, Timothy Martin Christensen
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Publication number: 20180216495Abstract: A gas turbine exhaust diffuser is configured to be at least partially disposed within an exhaust collector. The diffuser also includes an inner wall configured to extend to a back wall of the exhaust collector, an outer wall circumferentially disposed about the inner wall along a portion of the collector, and an inlet between the upstream end of the inner and outer walls. The inlet is configured to receive an exhaust flow from a gas turbine engine. An outlet for the exhaust is located between the inner wall and a downstream end of the outer wall. The outer wall is asymmetrically shaped so that an opening between the outlet and the back wall of the exhaust collector is larger on a first lateral side of the diffuser adjacent an exhaust exit of the collector than an opposite lateral side of the diffuser.Type: ApplicationFiled: February 22, 2017Publication date: August 2, 2018Inventors: Przemyslaw Sebastian Drezek, Marcin Rafal Abramowicz, Fernando Lopez Parra, Balakrishnan Ponnuraj
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Publication number: 20180030895Abstract: A system includes a modularized air inlet system. The modularized air inlet system includes an air filter house section configured to receive air via an air inlet. The modularized air inlet system also includes a transition/silencer section configured to direct the air from the modularized air inlet system, via an air outlet, into an air inlet plenum coupled to a gas turbine engine enclosure. The modularized air inlet system is configured to couple directly to the air inlet plenum and the gas turbine enclosure without an expansion joint disposed between the modularized air inlet system and the air inlet plenum.Type: ApplicationFiled: July 28, 2016Publication date: February 1, 2018Inventors: Donald Gordon Laing, Eric Tracy Watson, Balakrishnan Ponnuraj, Ravinder Yerram
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Patent number: 9644496Abstract: The present application provides a radial diffuser exhaust system for use with a gas turbine engine. The radial diffuser exhaust system may include a radial diffuser positioned within an asymmetric exhaust collector. The asymmetric exhaust collector may include a closed end chamber and an exhaust end chamber. The closed end chamber may have a first size, the exhaust end chamber may have a second size, and the first size may be smaller than the second size.Type: GrantFiled: March 13, 2013Date of Patent: May 9, 2017Assignee: General Electric CompanyInventors: Fernando Lopez-Parra, Balakrishnan Ponnuraj, Przemyslaw Drezek, Mehdi Milani Baladi, Ravinder Yerram, Donald Gordon Laing
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Patent number: 9494174Abstract: A system includes an inlet pipe configured to convey a fluid and a buffer volume configured to buffer the fluid. The buffer volume includes a smallest diameter tube having a smallest diameter, a first inlet end, and a first outlet end. The first inlet end is configured to receive the fluid from the inlet pipe. The buffer volume also includes an intermediate tube surrounding the smallest diameter tube having a first capped end and a second outlet end. The first capped end is positioned next to the outlet end of the smallest diameter tube. The buffer volume also includes a largest diameter tube surrounding the intermediate tube second capped end and a third outlet end. The second capped end is positioned next to the second outlet end of the intermediate tube. The system also includes an outlet pipe configured to convey the fluid from the buffer volume.Type: GrantFiled: March 7, 2014Date of Patent: November 15, 2016Assignee: GENERAL ELECTRIC COMPANYInventors: Patrick Edward Pastecki, Balakrishnan Ponnuraj, James Arthur Simmons, Ravinder Yerram
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Patent number: 9347380Abstract: A system includes a bleed system configured to direct a bleed flow from a high pressure region to a low pressure region. The bleed system includes a valve configured to control the bleed flow through the bleed system and a staged bleed conduit configured to incrementally depressurize the bleed flow. The staged bleed conduit includes an inlet coupled to the valve, a first stage configured to depressurize the bleed flow that is coupled to the inlet, a second stage configured to depressurize the bleed flow that is coupled to the first stage, and an outlet coupled to the second stage. The outlet is configured to direct the bleed flow to the low pressure region. The inlet, the first stage, the second stage, and the outlet are disposed along parallel axes.Type: GrantFiled: February 5, 2013Date of Patent: May 24, 2016Assignee: General Electric CompanyInventors: Balakrishnan Ponnuraj, Eric Hongzhao Weng, Tu Duc Nguyen, Fernando Lopez-Parra, Pawel Jan Jablecki
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Publication number: 20150252823Abstract: A system includes an inlet pipe configured to convey a fluid and a buffer volume configured to buffer the fluid. The buffer volume includes a smallest diameter tube having a smallest diameter, a first inlet end, and a first outlet end. The first inlet end is configured to receive the fluid from the inlet pipe. The buffer volume also includes an intermediate tube surrounding the smallest diameter tube having a first capped end and a second outlet end. The first capped end is positioned next to the outlet end of the smallest diameter tube. The buffer volume also includes a largest diameter tube surrounding the intermediate tube second capped end and a third outlet end. The second capped end is positioned next to the second outlet end of the intermediate tube. The system also includes an outlet pipe configured to convey the fluid from the buffer volume.Type: ApplicationFiled: March 7, 2014Publication date: September 10, 2015Applicant: General Electric CompanyInventors: Patrick Edward Pastecki, Balakrishnan Ponnuraj, James Arthur Simmons, Ravinder Yerram