Patents by Inventor Laxmikant Merchant

Laxmikant Merchant 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).

  • Publication number: 20200284193
    Abstract: An anti-icing system for a gas turbine system includes multiple nozzles arranged in a grid and configured to inject fluid within an air intake system of the gas turbine system upstream of a filter to keep ice from forming on the filter. Each nozzle of the multiple nozzles includes multiple orifices for injecting the fluid via jets. The anti-icing system also includes a nozzle head coupled to a nozzle of the multiple nozzles. The nozzle head is disposed over the multiple orifices and is configured to rotate relative to the nozzle. The nozzle head includes at least one outlet for injecting the fluid from the jets via at least one jet.
    Type: Application
    Filed: March 6, 2019
    Publication date: September 10, 2020
    Inventor: Laxmikant Merchant
  • Publication number: 20200284261
    Abstract: A liquid injection apparatus for use with a compressor having a rotor shaft and a casing part is provided. The liquid injection apparatus includes at least one conduit and at least one nozzle coupled to the conduit(s). The liquid injection apparatus is panel-shaped and has a first panel segment, a second panel segment, and at least one of: a passage defined between the first panel segment and the second panel segment, the passage sized to receive at least one of the rotor shaft and the casing part; and a third panel segment positioned between the first panel segment and the second panel segment. The third panel segment is at least in part detachable from the first panel segment and/or the second panel segment for receiving at least one of the rotor shaft and the casing part between the first panel segment and the second panel segment.
    Type: Application
    Filed: May 26, 2020
    Publication date: September 10, 2020
    Inventors: Laxmikant Merchant, Valery Ivanovich Ponyavin, Jeffrey Patrick Mills, Divya Reddy Kothakapu, Weilun Yu, Joshua Adam Bagwell
  • Patent number: 10670018
    Abstract: A liquid injection apparatus for use with a compressor having a rotor shaft and a casing part is provided. The liquid injection apparatus includes at least one conduit and at least one nozzle coupled to the conduit(s). The liquid injection apparatus is panel-shaped and has a first panel segment, a second panel segment, and at least one of: a passage defined between the first panel segment and the second panel segment, the passage sized to receive at least one of the rotor shaft and the casing part; and a third panel segment positioned between the first panel segment and the second panel segment. The third panel segment is at least in part detachable from the first panel segment and/or the second panel segment for receiving at least one of the rotor shaft and the casing part between the first panel segment and the second panel segment.
    Type: Grant
    Filed: May 2, 2017
    Date of Patent: June 2, 2020
    Assignee: General Electric Company
    Inventors: Laxmikant Merchant, Valery Ivanovich Ponyavin, Jeffrey Patrick Mills, Divya Reddy Kothakapu, Weilun Yu, Joshua Adam Bagwell
  • Patent number: 10502137
    Abstract: The present application provides a gas turbine engine. The gas turbine engine may include a compressor air extraction system with a number of valves, an exhaust frame cooling system with an exhaust frame blower, and a turbine valve cooling system with one or more valve protection boxes surrounding one or more of the valves. The valve protection boxes may be in communication with a flow of air from the exhaust frame blower.
    Type: Grant
    Filed: October 19, 2015
    Date of Patent: December 10, 2019
    Assignee: General Electric Company
    Inventors: Avishetti Srinivas, Laxmikant Merchant, Anil Kumar Dasoji, Ampili Kishore Kumar
  • Patent number: 10465714
    Abstract: A silencer duct that may be part of, for example, a turbomachine inlet and may include a duct body, and a silencer element extending axially through the duct body. A first portion of a coupler may extend axially from a first side of the duct body. A second portion of a coupler may extend axially from a second side of the duct body. At least one of the first portion of the coupler and the second portion of the coupler are configured to couple to at least one of an adjacent silencer duct and an inlet.
    Type: Grant
    Filed: September 16, 2015
    Date of Patent: November 5, 2019
    Assignee: General Electric Company
    Inventors: Laxmikant Merchant, Javeed Iqbaluddin Mohammed, Valery Ivanovich Ponyavin, Dinesh Venugopal Setty, Hua Zhang
  • Publication number: 20190111458
    Abstract: A system includes a fluid distribution system. The fluid distribution system includes a first water wash nozzle configured to spray a wash fluid into an intake flow received through a bell mouth of a compressor during operation of the compressor in a water wash mode. The first water wash nozzle includes a first inlet end coupled to the bell mouth of the compressor, a first tip disposed opposite the first inlet end, and a first body of the first water wash nozzle extending from the first inlet end to the first tip toward an axis of the compressor. The first water was nozzle further includes a first outlet disposed at the first tip and configured to spray a first portion of the wash fluid into the intake flow during operation of the compressor in the water wash mode and a second outlet disposed along the first body and configured to spray a second portion of the wash fluid into the intake flow during operation of the compressor in the water wash mode.
    Type: Application
    Filed: October 12, 2018
    Publication date: April 18, 2019
    Inventors: Karthik MANTRAVADI, Srinivas AVISHETTI, Shubhra BHATNAGAR, Laxmikant MERCHANT, Joshua Adam BAGWELL
  • Patent number: 10240482
    Abstract: A gas turbine system includes a load coupling connecting a gas turbine to a generator. A load coupling guard surrounds the load coupling to define an enclosed spaced around the load coupling. The load coupling guard includes a porous sleeve such that hydrogen coolant leaked into the load coupling guard from the generator is vented to ambient air.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: March 26, 2019
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Laxmikant Merchant, Dinesh Venugopal Setty, Avishetti Srinivas, S. T. Deepak
  • Publication number: 20190003387
    Abstract: An inlet bleed heat (IBH) system for use in a turbine engine including a silencer assembly. The inlet bleed heat (IBH) system includes a feed pipe for delivering compressor discharge air. The feed pipe includes a plurality of orifices along at least a portion of a length of the feed pipe, and each orifice of the plurality of orifices extends through a wall of the feed pipe for allowing the compressor discharge air to exit the feed pipe. The system also includes a heat shielding component that extends across the feed pipe, wherein the heat shielding component is configured to reduce heat transfer between the feed pipe and the silencer assembly of the turbine engine.
    Type: Application
    Filed: June 29, 2017
    Publication date: January 3, 2019
    Inventors: Valery Ivanovich Ponyavin, Bradly Aaron Kippel, Laxmikant Merchant, Hua Zhang, Naveen Parmeshwar
  • Publication number: 20180320594
    Abstract: A system includes a fluid distribution system. The fluid distribution system includes multiple spray rings disposed upstream of an inlet of a compressor. The multiple spray rings include a first spray ring disposed about an axis of the compressor in a first plane substantially perpendicular to the axis. The first spray ring includes a first set of nozzles disposed about the axis and configured to spray a first fluid flow toward the compressor inlet. The multiple spray rings further include a second spray ring disposed about the axis of the compressor in a second plane substantially perpendicular to the axis. The second spray ring includes a second set of nozzles disposed about the axis and configured to spray a second fluid flow toward the compressor inlet. The first plane is different than the second plane.
    Type: Application
    Filed: May 4, 2017
    Publication date: November 8, 2018
    Inventors: Laxmikant Merchant, Hua Zhang, Joseph Anthony Cotroneo, Francesco Soranna
  • Patent number: 10092878
    Abstract: A simple-cycle gas turbine system includes an injection system including a plurality of injection tubes that may inject a fluid into a duct of an exhaust processing system that may process exhaust gas generated by a gas turbine engine. The exhaust processing system includes a selective catalytic reduction (SCR) system that may reduce a level of nitrogen oxides (NOx) within the exhaust gas; and a mixing system positioned adjacent to the plurality of injection tubes and within the exhaust processing system. The mixing system includes a mixing module having a plurality of turbulators that may swirl the fluid, or the exhaust gas, or both, in a first swirl direction to encourage turbulent flow along an axis of the exhaust processing system and thereby facilitate mixing between the fluid and the exhaust gas.
    Type: Grant
    Filed: March 3, 2016
    Date of Patent: October 9, 2018
    Assignee: General Electric Company
    Inventors: Hua Zhang, Laxmikant Merchant, Bradly Aaron Kippel, Valery Ivanovich Ponyavin
  • Publication number: 20180135514
    Abstract: The present disclosure is directed to a sound attenuation system for a gas turbine engine. The sound attenuation system includes a compressor inlet casing having a compressor inlet casing inner surface and defining a compressor inlet passage extending therethrough. An inlet plenum body couples to the compressor inlet casing. The inlet plenum body includes an inlet body inner surface and defines an inlet plenum therein. One or more sound attenuating panels couple to at least one of the compressor inlet casing inner surface and the inlet plenum body inner surface of the duct. Each sound attenuating panel includes a first sheet defining a first plurality of apertures extending therethrough and a solid second sheet spaced apart from the first sheet.
    Type: Application
    Filed: September 27, 2016
    Publication date: May 17, 2018
    Inventors: Dinesh Venugopal Setty, Richard Lynn Loud, Pramod Akulu, Haribalakrishnan Sankarakumar, Shubhra Bhatnagar, Laxmikant Merchant
  • Patent number: 9890713
    Abstract: A silencer apparatus for a gas turbine inlet system ducting is disclosed. The inlet ducting contains a main silencer and a pre-silencer, and Inlet Bleed Heat (“IBH”) located between the silencers. The pre-silencer decreases the noise level from the turbine compressor and makes the air flow/temperature profiles more uniform. The main silencer reduces noise from the IBH and the remaining noise from the compressor to an appropriate level. The main silencer is comprised of a first plurality of sound-absorbing splitters disposed along the gas flow direction in the gas turbine inlet ducting. The pre-silencer is comprised of a second plurality of sound-absorbing splitters disposed along the gas flow direction in the gas turbine inlet ducting, but staggered with respect to the first plurality of splitters to thereby block a direct line of travel for noise acoustical waves from the compressor travelling opposite the gas flow direction in the inlet ducting.
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: February 13, 2018
    Assignee: General Electric Company
    Inventors: Hua Zhang, Dinesh Venugopal Setty, Laxmikant Merchant, Valery Ivanovich Ponyavin
  • Publication number: 20180030853
    Abstract: A gas turbine system includes a load coupling connecting a gas turbine to a generator. A load coupling guard surrounds the load coupling to define an enclosed spaced around the load coupling. The load coupling guard includes a porous sleeve such that hydrogen coolant leaked into the load coupling guard from the generator is vented to ambient air.
    Type: Application
    Filed: July 28, 2016
    Publication date: February 1, 2018
    Inventors: Laxmikant MERCHANT, Dinesh VENUGOPAL SETTY, Avishetti SRINIVAS, S.T. DEEPAK
  • Publication number: 20170321700
    Abstract: A liquid injection apparatus for use with a compressor having a rotor shaft and a casing part is provided. The liquid injection apparatus includes at least one conduit and at least one nozzle coupled to the conduit(s). The liquid injection apparatus is panel-shaped and has a first panel segment, a second panel segment, and at least one of: a passage defined between the first panel segment and the second panel segment, the passage sized to receive at least one of the rotor shaft and the casing part; and a third panel segment positioned between the first panel segment and the second panel segment. The third panel segment is at least in part detachable from the first panel segment and/or the second panel segment for receiving at least one of the rotor shaft and the casing part between the first panel segment and the second panel segment.
    Type: Application
    Filed: May 2, 2017
    Publication date: November 9, 2017
    Inventors: Laxmikant Merchant, Valery Ivanovich Ponyavin, Jeffrey Patrick Mills, Divya Reddy Kothakapu, Weilun Yu, Joshua Adam Bagwell
  • Publication number: 20170292456
    Abstract: An inlet system for a gas turbine includes an integrated inlet bleed heat system, wherein the inlet bleed design is integrated in, e.g., a silencer or inlet.
    Type: Application
    Filed: April 12, 2016
    Publication date: October 12, 2017
    Inventors: Laxmikant MERCHANT, Hua ZHANG, Dinesh VENUGOPAL SETTY, Valery Ivanovich PONYAVIN, James den Outer
  • Publication number: 20170276386
    Abstract: Synthetic media pads configured to be arranged in a stack of an evaporative cooler for a gas turbine, wherein the synthetic media pads include high density synthetic media pads and low density synthetic media pads. The sides of the pads may have surface patterns, such as grooves and ridges, to provide support for the pads.
    Type: Application
    Filed: March 28, 2016
    Publication date: September 28, 2017
    Inventors: Valery Ivanovich PONYAVIN, Hua ZHANG, Laxmikant MERCHANT
  • Patent number: 9771865
    Abstract: An inlet bleed heat (IBH) system manifold for a compressor inlet housing is provided. The manifold includes: a plurality of feed pipes for delivering a compressor discharge air, each feed pipe extending across a duct of the compressor inlet housing. Each feed pipe includes: an elongated inner feed pipe for delivering the compressor discharge air, the inner feed pipe including a plurality of orifices along at least a portion of a length of the inner feed pipe, each orifice extending through a wall of the inner feed pipe allowing the compressor discharge air to exit the inner feed pipe; and a noise attenuating material disposed about the inner feed pipe and the plurality of orifices, the noise attenuating material configured to attenuate noise created by the compressor discharge air exiting the plurality of orifices.
    Type: Grant
    Filed: October 28, 2014
    Date of Patent: September 26, 2017
    Assignee: General Electric Company
    Inventors: Laxmikant Merchant, Richard Lynn Loud, Valery Ivanovich Ponyavin, Dinesh Venugopal Setty, Hua Zhang
  • Publication number: 20170254222
    Abstract: A gas turbine system includes an exhaust processing system that may process exhaust gas generated by a gas turbine engine, the exhaust processing system includes an exhaust diffuser that may receive the exhaust gas from a turbine of the gas turbine engine and having an annular passage disposed between an inner annular wall and an outer annular wall, and an air injection assembly disposed within the exhaust diffuser. The air injection assembly includes one or more air injection conduits disposed within the annular passage of the exhaust diffuser and including fluid injection holes that may direct a cooling fluid into a first mixing region of the exhaust diffuser.
    Type: Application
    Filed: March 7, 2016
    Publication date: September 7, 2017
    Inventors: Hua Zhang, Laxmikant Merchant, Bradly Aaron Kippel, Valery Ivanovich Ponyavin
  • Publication number: 20170252698
    Abstract: A simple-cycle gas turbine system includes an injection system including a plurality of injection tubes that may inject a fluid into a duct of an exhaust processing system that may process exhaust gas generated by a gas turbine engine. The exhaust processing system includes a selective catalytic reduction (SCR) system that may reduce a level of nitrogen oxides (NOx) within the exhaust gas; and a mixing system positioned adjacent to the plurality of injection tubes and within the exhaust processing system. The mixing system includes a mixing module having a plurality of turbulators that may swirl the fluid, or the exhaust gas, or both, in a first swirl direction to encourage turbulent flow along an axis of the exhaust processing system and thereby facilitate mixing between the fluid and the exhaust gas.
    Type: Application
    Filed: March 3, 2016
    Publication date: September 7, 2017
    Inventors: Hua Zhang, Laxmikant Merchant, Bradly Aaron Kippel, Valery Ivanovich Ponyavin
  • Publication number: 20170107907
    Abstract: The present application provides a gas turbine engine. The gas turbine engine may include a compressor air extraction system with a number of valves, an exhaust frame cooling system with an exhaust frame blower, and a turbine valve cooling system with one or more valve protection boxes surrounding one or more of the valves. The valve protection boxes may be in communication with a flow of air from the exhaust frame blower.
    Type: Application
    Filed: October 19, 2015
    Publication date: April 20, 2017
    Inventors: Avishetti Srinivas, Laxmikant Merchant, Anil Kumar Dasoji, Ampili Kishore Kumar