Patents by Inventor Shishir Tiwari

Shishir Tiwari 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).

  • Patent number: 11242784
    Abstract: Various methods and systems are provided for controlling emissions. In one example, a controller is configured to respond to a sensed exhaust oxygen concentration by changing a fuel injection timing to maintain particulate matter (PM) within a range, and then adjusting an exhaust gas recirculation (EGR) amount based on NOx sensor output and based on the change in fuel injection timing.
    Type: Grant
    Filed: April 19, 2021
    Date of Patent: February 8, 2022
    Assignee: TRANSPORTATION IP HOLDINGS, LLC
    Inventors: David Zielinski, Shishir Tiwari, James Robert Mischler, Michael Mangus, Matthew Hart
  • Publication number: 20210239019
    Abstract: Various methods and systems are provided for controlling emissions. In one example, a controller is configured to respond to a sensed exhaust oxygen concentration by changing a fuel injection timing to maintain particulate matter (PM) within a range, and then adjusting an exhaust gas recirculation (EGR) amount based on NOx sensor output and based on the change in fuel injection timing.
    Type: Application
    Filed: April 19, 2021
    Publication date: August 5, 2021
    Inventors: David Zielinski, Shishir Tiwari, James Robert Mischler, Michael Mangus, Matthew Hart
  • Patent number: 11047277
    Abstract: Various methods and systems are provided for controlling emissions. In one example, a controller is configured to respond to a sensed exhaust oxygen concentration by changing a fuel injection timing to maintain particulate matter (PM) within a range, and then adjusting an exhaust gas recirculation (EGR) amount based on NOx sensor output and based on the change in fuel injection timing.
    Type: Grant
    Filed: May 3, 2019
    Date of Patent: June 29, 2021
    Assignee: TRANSPORTATION IP HOLDINGS, LLC
    Inventors: David Zielinski, Shishir Tiwari, James Robert Mischler, Michael Mangus, Matthew Hart
  • Publication number: 20190345858
    Abstract: Various methods and systems are provided for controlling emissions. In one example, a controller is configured to respond to a sensed exhaust oxygen concentration by changing a fuel injection timing to maintain particulate matter (PM) within a range, and then adjusting an exhaust gas recirculation (EGR) amount based on NOx sensor output and based on the change in fuel injection timing.
    Type: Application
    Filed: May 3, 2019
    Publication date: November 14, 2019
    Inventors: David Zielinski, Shishir Tiwari, James Robert Mischler, Michael Mangus, Matthew Hart
  • Patent number: 10125648
    Abstract: Various embodiments for an exhaust gas treatment device for a vehicle system are provided. In one example, the vehicle system includes an engine with a longitudinal axis, where a crankshaft of the engine is parallel to the longitudinal axis and an exhaust gas treatment device mounted on the engine, vertically above the engine such that a longitudinal axis of the exhaust gas treatment device is aligned in parallel with the longitudinal axis of the engine, the exhaust gas treatment device configured to receive exhaust gas from an exhaust manifold of the engine.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: November 13, 2018
    Assignee: General Electric Company
    Inventors: Paul Lloyd Flynn, James Edward Arner, Shishir Tiwari, Shashi Kiran
  • Patent number: 10100721
    Abstract: Various systems are provided for supporting an exhaust gas treatment system vertically above an engine in an engine system. In one example, an engine system includes an engine; a support structure including a base and a plurality of mounting legs, a first end of each mounting leg of the plurality of mounting legs coupled to the base and an opposite, second end of each mounting leg of at least a portion of the plurality of mounting legs coupled to the engine, where at least three mounting legs of the plurality of mounting legs and the base form two triangles within a same plane of the support structure; and an exhaust gas treatment system positioned vertically above and mounted on the engine via the support structure.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: October 16, 2018
    Assignee: General Electric Company
    Inventors: Shishir Tiwari, Douglas C. Hofer, Shashi Kiran, Jessica Lynn Plummer, Shridhar Shrikant Kulkarni
  • Patent number: 9868089
    Abstract: A controller for controlling emission of an internal combustion engine, that is configured to: determine an aging parameter(s) of the engine over a period of time; control an operating parameter(s) of the engine, based on the aging parameter(s); and then maintain emissions from the engine at a substantially constant value, based on the controlling. Also method of controlling emissions of an engine comprises: over a time period, determining a change in operating hours of the engine; emissions of the engine; and/or quantity of a fuel being dispensed by a fuel nozzle; controlling an operating parameter(s) of the engine during the time period, based on the determining, thereby maintaining the emissions of the engine substantially at a constant level during the same time period. A system and non-transitory computer readable media for controlling emissions of an engine are also disclosed.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: January 16, 2018
    Assignee: General Electric Company
    Inventors: Thomas Michael Lavertu, Venu Gummadavelli Gupta, Shishir Tiwari
  • Publication number: 20170088070
    Abstract: A controller for controlling emission of an internal combustion engine, that is configured to: determine an aging parameter(s) of the engine over a period of time; control an operating parameter(s) of the engine, based on the aging parameter(s); and then maintain emissions from the engine at a substantially constant value, based on the controlling. Also method of controlling emissions of an engine comprises: over a time period, determining a change in operating hours of the engine; emissions of the engine; and/or quantity of a fuel being dispensed by a fuel nozzle; controlling an operating parameter(s) of the engine during the time period, based on the determining, thereby maintaining the emissions of the engine substantially at a constant level during the same time period. A system and non-transitory computer readable media for controlling emissions of an engine are also disclosed.
    Type: Application
    Filed: December 13, 2016
    Publication date: March 30, 2017
    Inventors: Thomas Michael Lavertu, Venu Gummadavelli Gupta, Shishir Tiwari
  • Publication number: 20170067383
    Abstract: Various embodiments for an exhaust gas treatment device for a vehicle system are provided. In one example, the vehicle system includes an engine with a longitudinal axis, where a crankshaft of the engine is parallel to the longitudinal axis and an exhaust gas treatment device mounted on the engine, vertically above the engine such that a longitudinal axis of the exhaust gas treatment device is aligned in parallel with the longitudinal axis of the engine, the exhaust gas treatment device configured to receive exhaust gas from an exhaust manifold of the engine.
    Type: Application
    Filed: November 17, 2016
    Publication date: March 9, 2017
    Inventors: Paul Lloyd FLYNN, James Edward ARNER, Shishir TIWARI, Shashi KIRAN
  • Patent number: 9518521
    Abstract: System for controlling emissions of an engine is disclosed. The system includes a controller to determine one or more aging parameters of the engine, and to control one or more operating parameters of the engine, at least, based on the one or more aging parameters, such that the emissions from the engine are maintained to be substantially constant during a useful life of the engine. Method and non-transitory computer readable media for controlling emissions of an engine are also disclosed.
    Type: Grant
    Filed: July 21, 2014
    Date of Patent: December 13, 2016
    Assignee: General Electric Company
    Inventors: Thomas Michael Lavertu, Venu Gummadavelli Gupta, Shishir Tiwari
  • Patent number: 9506388
    Abstract: Various embodiments for an exhaust gas treatment device for a vehicle system are provided. In one example, the vehicle system includes an engine with a longitudinal axis, where a crankshaft of the engine is parallel to the longitudinal axis and an exhaust gas treatment device mounted on the engine, vertically above the engine such that a longitudinal axis of the exhaust gas treatment device is aligned in parallel with the longitudinal axis of the engine, the exhaust gas treatment device configured to receive exhaust gas from an exhaust manifold of the engine.
    Type: Grant
    Filed: February 5, 2015
    Date of Patent: November 29, 2016
    Assignee: General Electric Company
    Inventors: Paul Lloyd Flynn, James Edward Arner, Shishir Tiwari, Shashi Kiran
  • Patent number: 9506597
    Abstract: Various systems are provided for a support structure. In one embodiment, a system comprises a support structure including a plurality of support legs, a first end of each support leg of the plurality of support legs coupled to a respective cylinder head of a plurality of cylinder heads mountable to an engine block, the plurality of support legs configurable to support an exhaust aftertreatment system.
    Type: Grant
    Filed: January 13, 2014
    Date of Patent: November 29, 2016
    Assignee: General Electric Company
    Inventors: James Edward Arner, Paul Lloyd Flynn, Shishir Tiwari, Shashi Kiran
  • Patent number: 9369286
    Abstract: Systems and methods for facilitating authentication of an electronic device accessing plurality of mobile applications are disclosed. The system may receive a device public key and authentication information of the electronic device. The system may validate the authentication information to initiate a device session with the electronic device and create an authentication token signed with a server signature. The system may enable the electronic device to access a first mobile application based on the authentication information validated. Further, the system may receive the authentication token signed with a device signature. The system may authorize the authentication token by verifying the device signature and the server signature on the authentication token with a device public key and a server public key respectively. The system may then enable the electronic device to access the second mobile application using the authentication token authorized.
    Type: Grant
    Filed: April 1, 2014
    Date of Patent: June 14, 2016
    Assignee: TATA CONSULTANCY SERVICES LIMITED
    Inventors: Kartikey Shukla, Nishant Singh, Kalidas Krishna Shetty, Shishir Tiwari, Nisha Yohannan
  • Publication number: 20160076437
    Abstract: Various systems are provided for an apparatus. In one example, the apparatus includes an expansion plenum with a plurality of outlets directing flow in a common first direction, and an inlet receiving flow in a second direction angled with respect to the first common direction. The apparatus further includes at least one mating structure operatively coupled to one of the plurality of outlets, the at least one mating structure configured to provide a determined amount of exhaust gas to an exhaust gas treatment system.
    Type: Application
    Filed: November 25, 2015
    Publication date: March 17, 2016
    Inventors: Shishir Tiwari, Douglas C. Hofer, Shashi Kiran, Jessica Lynn Plummer, Shridhar Shrikant Kulkarni
  • Publication number: 20160017826
    Abstract: System for controlling emissions of an engine is disclosed. The system includes a controller to determine one or more aging parameters of the engine, and to control one or more operating parameters of the engine, at least, based on the one or more aging parameters, such that the emissions from the engine are maintained to be substantially constant during a useful life of the engine. Method and non-transitory computer readable media for controlling emissions of an engine are also disclosed.
    Type: Application
    Filed: July 21, 2014
    Publication date: January 21, 2016
    Inventors: Thomas Michael Lavertu, Venu Gummadavelli Gupta, Shishir Tiwari
  • Publication number: 20150144022
    Abstract: Various embodiments for an exhaust gas treatment device for a vehicle system are provided. In one example, the vehicle system includes an engine with a longitudinal axis, where a crankshaft of the engine is parallel to the longitudinal axis and an exhaust gas treatment device mounted on the engine, vertically above the engine such that a longitudinal axis of the exhaust gas treatment device is aligned in parallel with the longitudinal axis of the engine, the exhaust gas treatment device configured to receive exhaust gas from an exhaust manifold of the engine.
    Type: Application
    Filed: February 5, 2015
    Publication date: May 28, 2015
    Inventors: Paul Lloyd Flynn, James Edward Arner, Shishir Tiwari, Shashi Kiran
  • Publication number: 20150149766
    Abstract: Systems and methods for facilitating authentication of an electronic device accessing plurality of mobile applications are disclosed. The system may receive a device public key and authentication information of the electronic device. The system may validate the authentication information to initiate a device session with the electronic device and create an authentication token signed with a server signature. The system may enable the electronic device to access a first mobile application based on the authentication information validated. Further, the system may receive the authentication token signed with a device signature. The system may authorize the authentication token by verifying the device signature and the server signature on the authentication token with a device public key and a server public key respectively. The system may then enable the electronic device to access the second mobile application using the authentication token authorized.
    Type: Application
    Filed: April 1, 2014
    Publication date: May 28, 2015
    Applicant: Tata Consultancy Services Limited
    Inventors: Kartikey Shukla, Nishant Singh, Kalidas Krishna Shetty, Shishir Tiwari, Nisha Yohannan
  • Publication number: 20150069207
    Abstract: Various systems are provided for a support structure. In one embodiment, a system comprises a support structure including a plurality of support legs, a first end of each support leg of the plurality of support legs coupled to a respective cylinder head of a plurality of cylinder heads mountable to an engine block, the plurality of support legs configurable to support an exhaust aftertreatment system.
    Type: Application
    Filed: January 13, 2014
    Publication date: March 12, 2015
    Applicant: General Electric Company
    Inventors: James Edward Arner, Paul Lloyd Flynn, Shishir Tiwari, Shashi Kiran
  • Publication number: 20120151916
    Abstract: Various systems are provided for an apparatus. In one example, the apparatus includes an expansion plenum with a plurality of outlets directing flow in a common first direction, and an inlet receiving flow in a second direction angled with respect to the first common direction. The apparatus further includes at least one mating structure operatively coupled to one of the plurality of outlets, the at least one mating structure configured to provide a determined amount of exhaust gas to an exhaust gas treatment system.
    Type: Application
    Filed: February 14, 2011
    Publication date: June 21, 2012
    Inventors: Shishir Tiwari, Douglas C. Hofer, Shashi Kiran, Jessica Lynn Plummer, Shridhar Shrikant Kulkarni
  • Patent number: D736597
    Type: Grant
    Filed: September 9, 2013
    Date of Patent: August 18, 2015
    Assignee: General Electric Company
    Inventors: James Edward Arner, Paul Lloyd Flynn, Shishir Tiwari, Shashi Kiran