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).
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Patent number: 11242784Abstract: 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: GrantFiled: April 19, 2021Date of Patent: February 8, 2022Assignee: TRANSPORTATION IP HOLDINGS, LLCInventors: David Zielinski, Shishir Tiwari, James Robert Mischler, Michael Mangus, Matthew Hart
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Publication number: 20210239019Abstract: 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: ApplicationFiled: April 19, 2021Publication date: August 5, 2021Inventors: David Zielinski, Shishir Tiwari, James Robert Mischler, Michael Mangus, Matthew Hart
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Patent number: 11047277Abstract: 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: GrantFiled: May 3, 2019Date of Patent: June 29, 2021Assignee: TRANSPORTATION IP HOLDINGS, LLCInventors: David Zielinski, Shishir Tiwari, James Robert Mischler, Michael Mangus, Matthew Hart
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Publication number: 20190345858Abstract: 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: ApplicationFiled: May 3, 2019Publication date: November 14, 2019Inventors: David Zielinski, Shishir Tiwari, James Robert Mischler, Michael Mangus, Matthew Hart
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Patent number: 10125648Abstract: 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: GrantFiled: November 17, 2016Date of Patent: November 13, 2018Assignee: General Electric CompanyInventors: Paul Lloyd Flynn, James Edward Arner, Shishir Tiwari, Shashi Kiran
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Patent number: 10100721Abstract: 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: GrantFiled: November 25, 2015Date of Patent: October 16, 2018Assignee: General Electric CompanyInventors: Shishir Tiwari, Douglas C. Hofer, Shashi Kiran, Jessica Lynn Plummer, Shridhar Shrikant Kulkarni
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Patent number: 9868089Abstract: 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: GrantFiled: December 13, 2016Date of Patent: January 16, 2018Assignee: General Electric CompanyInventors: Thomas Michael Lavertu, Venu Gummadavelli Gupta, Shishir Tiwari
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Publication number: 20170088070Abstract: 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: ApplicationFiled: December 13, 2016Publication date: March 30, 2017Inventors: Thomas Michael Lavertu, Venu Gummadavelli Gupta, Shishir Tiwari
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Publication number: 20170067383Abstract: 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: ApplicationFiled: November 17, 2016Publication date: March 9, 2017Inventors: Paul Lloyd FLYNN, James Edward ARNER, Shishir TIWARI, Shashi KIRAN
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Patent number: 9518521Abstract: 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: GrantFiled: July 21, 2014Date of Patent: December 13, 2016Assignee: General Electric CompanyInventors: Thomas Michael Lavertu, Venu Gummadavelli Gupta, Shishir Tiwari
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Patent number: 9506388Abstract: 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: GrantFiled: February 5, 2015Date of Patent: November 29, 2016Assignee: General Electric CompanyInventors: Paul Lloyd Flynn, James Edward Arner, Shishir Tiwari, Shashi Kiran
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Patent number: 9506597Abstract: 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: GrantFiled: January 13, 2014Date of Patent: November 29, 2016Assignee: General Electric CompanyInventors: James Edward Arner, Paul Lloyd Flynn, Shishir Tiwari, Shashi Kiran
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Patent number: 9369286Abstract: 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: GrantFiled: April 1, 2014Date of Patent: June 14, 2016Assignee: TATA CONSULTANCY SERVICES LIMITEDInventors: Kartikey Shukla, Nishant Singh, Kalidas Krishna Shetty, Shishir Tiwari, Nisha Yohannan
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Publication number: 20160076437Abstract: 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: ApplicationFiled: November 25, 2015Publication date: March 17, 2016Inventors: Shishir Tiwari, Douglas C. Hofer, Shashi Kiran, Jessica Lynn Plummer, Shridhar Shrikant Kulkarni
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Publication number: 20160017826Abstract: 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: ApplicationFiled: July 21, 2014Publication date: January 21, 2016Inventors: Thomas Michael Lavertu, Venu Gummadavelli Gupta, Shishir Tiwari
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Publication number: 20150144022Abstract: 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: ApplicationFiled: February 5, 2015Publication date: May 28, 2015Inventors: Paul Lloyd Flynn, James Edward Arner, Shishir Tiwari, Shashi Kiran
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Publication number: 20150149766Abstract: 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: ApplicationFiled: April 1, 2014Publication date: May 28, 2015Applicant: Tata Consultancy Services LimitedInventors: Kartikey Shukla, Nishant Singh, Kalidas Krishna Shetty, Shishir Tiwari, Nisha Yohannan
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Publication number: 20150069207Abstract: 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: ApplicationFiled: January 13, 2014Publication date: March 12, 2015Applicant: General Electric CompanyInventors: James Edward Arner, Paul Lloyd Flynn, Shishir Tiwari, Shashi Kiran
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Publication number: 20120151916Abstract: 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: ApplicationFiled: February 14, 2011Publication date: June 21, 2012Inventors: Shishir Tiwari, Douglas C. Hofer, Shashi Kiran, Jessica Lynn Plummer, Shridhar Shrikant Kulkarni
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Patent number: D736597Type: GrantFiled: September 9, 2013Date of Patent: August 18, 2015Assignee: General Electric CompanyInventors: James Edward Arner, Paul Lloyd Flynn, Shishir Tiwari, Shashi Kiran