Patents by Inventor Milan Palinda Karunaratne
Milan Palinda Karunaratne 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: 10920694Abstract: Various methods and systems are provided for an engine capable of receiving liquid and gaseous fuel. In one example, cylinder misfire may be identified based on a misfire monitor. The misfire monitor may detect misfire based on signals from a crankshaft sensor.Type: GrantFiled: March 4, 2019Date of Patent: February 16, 2021Assignee: TRANSPORTATION IP HOLDINGS, LLCInventors: Paul Lloyd Flynn, Aninda Bhattacharya, Ganesasubramanian Murugesan, Milan Palinda Karunaratne, Daniel Cullen
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Patent number: 10837376Abstract: Various systems and methods are provided for identifying cylinder knock. In one example, cylinder knock may be identified based on a knock monitor that identifies knock based on output from a crankshaft speed sensor.Type: GrantFiled: September 28, 2016Date of Patent: November 17, 2020Assignee: Transportation IP Holdings, LLCInventors: Habeeb Khan Pathan, James Robert Schreiner, Milan Palinda Karunaratne, Bhanuprakash Haranahalli Panchakshari
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Publication number: 20190195151Abstract: Various methods and systems are provided for an engine capable of receiving liquid and gaseous fuel. In one example, cylinder misfire may be identified based on a misfire monitor. The misfire monitor may detect misfire based on signals from a crankshaft sensor.Type: ApplicationFiled: March 4, 2019Publication date: June 27, 2019Inventors: Paul Lloyd Flynn, Aninda Bhattacharya, Ganesasubramanian Murugesan, Milan Palinda Karunaratne, Daniel Cullen
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Patent number: 10316772Abstract: Various methods and systems are provided for an engine capable of receiving liquid and gaseous fuel. In one example, cylinder misfire may be identified based on a misfire monitor. The misfire monitor may detect misfire based on signals from a crankshaft sensor.Type: GrantFiled: December 11, 2015Date of Patent: June 11, 2019Assignee: GE Global Sourcing LLCInventors: Paul Lloyd Flynn, Aninda Bhattacharya, Ganesasubramanian Murugesan, Milan Palinda Karunaratne, Daniel Cullen
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Patent number: 10267249Abstract: Systems are provided for detecting a change in performance of an engine component. In one example, a system includes a first pressure sensor of a first exhaust manifold coupled to a first subset of cylinders of an engine, a second pressure sensor of a second exhaust manifold coupled to a second subset of cylinders of the engine, a passage coupling the first exhaust manifold to an intake manifold, and a controller configured to detect a change in performance of any cylinder of the engine based on frequency content from the first pressure sensor and from the second pressure sensor during both a first mode where no exhaust gas from the first exhaust manifold is provided to the intake manifold, and during a second mode where all exhaust gas from the first exhaust manifold is provided to the intake manifold, and adjust an operating parameter responsive to the change in performance.Type: GrantFiled: April 27, 2016Date of Patent: April 23, 2019Assignee: GE Global Sourcing LLCInventors: Milan Palinda Karunaratne, Paul Lloyd Flynn, James Robert Schreiner
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Patent number: 10054499Abstract: A system may include at least one engine bank including a plurality of fuel injectors. At least one exhaust temperature sensor is coupled to the engine bank(s). The exhaust temperature sensor(s) is configured to output at least one temperature signal regarding an exhaust temperature of the engine bank(s). A traction system is configured to output at least one electrical signal related to a power output of a vehicle. A control unit is coupled to the exhaust temperature sensor(s) and the traction system. The control unit is configured to receive the temperature signal(s) and the electrical signal(s). The control unit is configured to determine a mechanical and electrical health of the plurality of the fuel injectors by determining a temperature differential value of the temperature signal(s) and a power differential value related to the electrical signal(s), and analyzing a combination of the temperature differential value and the power differential value.Type: GrantFiled: April 20, 2016Date of Patent: August 21, 2018Assignee: General Electric CompanyInventors: Milan Palinda Karunaratne, Benedict George Lander
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Patent number: 9989003Abstract: Various methods and systems are provided for diagnosing a condition of a cylinder of an engine. In one example, a method includes adjusting recirculated exhaust gas responsive to a determined emission value and indicating insufficient combustion of one or more engine cylinders based on an amount by which the recirculated exhaust gas is adjusted.Type: GrantFiled: September 5, 2014Date of Patent: June 5, 2018Assignee: General Electric CompanyInventor: Milan Palinda Karunaratne
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Patent number: 9951703Abstract: Various systems and methods are provided for identifying cylinder misfire. In one example, cylinder misfire may be identified based on a misfire monitor that differentiates a single-cylinder misfire event from a multi-cylinder misfire event based on output from a crankshaft speed sensor.Type: GrantFiled: July 26, 2016Date of Patent: April 24, 2018Assignee: General Electric CompanyInventors: Habeeb Khan Pathan, Paul Lloyd Flynn, Pritamkumar Gangwal, James Robert Schreiner, Bhanuprakash Haranahalli Panchakshari, Aninda Bhattacharya, Ganesasubramanian Murugesan, Milan Palinda Karunaratne, Daniel Cullen
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Publication number: 20180087460Abstract: Various systems and methods are provided for identifying cylinder knock. In one example, cylinder knock may be identified based on a knock monitor that identifies knock based on output from a crankshaft speed sensor.Type: ApplicationFiled: September 28, 2016Publication date: March 29, 2018Inventors: Habeeb Khan PATHAN, James Robert SCHREINER, Milan Palinda KARUNARATNE, Bhanuprakash HARANAHALLI PANCHAKSHARI
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Publication number: 20170314481Abstract: Systems are provided for detecting a change in performance of an engine component. In one example, a system includes a first pressure sensor of a first exhaust manifold coupled to a first subset of cylinders of an engine, a second pressure sensor of a second exhaust manifold coupled to a second subset of cylinders of the engine, a passage coupling the first exhaust manifold to an intake manifold, and a controller configured to detect a change in performance of any cylinder of the engine based on frequency content from the first pressure sensor and from the second pressure sensor during both a first mode where no exhaust gas from the first exhaust manifold is provided to the intake manifold, and during a second mode where all exhaust gas from the first exhaust manifold is provided to the intake manifold, and adjust an operating parameter responsive to the change in performance.Type: ApplicationFiled: April 27, 2016Publication date: November 2, 2017Applicant: General Electric CompanyInventors: Milan Palinda Karunaratne, Paul Lloyd Flynn, James Robert Schreiner
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Publication number: 20170306915Abstract: A system may include at least one engine bank including a plurality of fuel injectors. At least one exhaust temperature sensor is coupled to the engine bank(s). The exhaust temperature sensor(s) is configured to output at least one temperature signal regarding an exhaust temperature of the engine bank(s). A traction system is configured to output at least one electrical signal related to a power output of a vehicle. A control unit is coupled to the exhaust temperature sensor(s) and the traction system. The control unit is configured to receive the temperature signal(s) and the electrical signal(s). The control unit is configured to determine a mechanical and electrical health of the plurality of the fuel injectors by determining a temperature differential value of the temperature signal(s) and a power differential value related to the electrical signal(s), and analyzing a combination of the temperature differential value and the power differential value.Type: ApplicationFiled: April 20, 2016Publication date: October 26, 2017Inventors: Milan Palinda Karunaratne, Benedict George Lander
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Patent number: 9541040Abstract: Various methods and systems are provided for diagnosing a condition of a component in an exhaust gas recirculation system. In one example, a method includes selectively routing exhaust from a first subset of engine cylinders to an exhaust passage via a first valve and to an intake passage via a second valve and determining a respective condition of each of the first valve and second valve based on a first exhaust pressure of the first subset of engine cylinders and a second exhaust pressure of a second subset of engine cylinders.Type: GrantFiled: September 5, 2014Date of Patent: January 10, 2017Assignee: General Electric CompanyInventors: Milan Palinda Karunaratne, Benedict George Lander, Chirag Bipinchandra Parikh
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Publication number: 20160333807Abstract: Various systems and methods are provided for identifying cylinder misfire. In one example, cylinder misfire may be identified based on a misfire monitor that differentiates a single-cylinder misfire event from a multi-cylinder misfire event based on output from a crankshaft speed sensor.Type: ApplicationFiled: July 26, 2016Publication date: November 17, 2016Inventors: Habeeb Khan Pathan, Paul Lloyd Flynn, Pritamkumar Gangwal, James Robert Schreiner, Bhanuprakash Haranahalli Panchakshari, Aninda Bhattacharya, Ganesasubramanian Murugesan, Milan Palinda Karunaratne, Daniel Cullen
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Publication number: 20160169141Abstract: Various methods and systems are provided for an engine capable of receiving liquid and gaseous fuel. In one example, cylinder misfire may be identified based on a misfire monitor. The misfire monitor may detect misfire based on signals from a crankshaft sensor.Type: ApplicationFiled: December 11, 2015Publication date: June 16, 2016Inventors: Paul Lloyd FLYNN, Aninda BHATTACHARYA, Ganesasubramanian MURUGESAN, Milan Palinda KARUNARATNE, Daniel CULLEN
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Publication number: 20160069301Abstract: Various methods and systems are provided for diagnosing a condition of a component in an exhaust gas recirculation system. In one example, a method includes selectively routing exhaust from a first subset of engine cylinders to an exhaust passage via a first valve and to an intake passage via a second valve and determining a respective condition of each of the first valve and second valve based on a first exhaust pressure of the first subset of engine cylinders and a second exhaust pressure of a second subset of engine cylinders.Type: ApplicationFiled: September 5, 2014Publication date: March 10, 2016Inventors: Milan Palinda KARUNARATNE, Benedict George LANDER, Chirag Bipinchandra PARIKH
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Publication number: 20160069288Abstract: Various methods and systems are provided for diagnosing a condition of a cylinder of an engine. In one example, a method includes adjusting recirculated exhaust gas responsive to a determined emission value and indicating insufficient combustion of one or more engine cylinders based on an amount by which the recirculated exhaust gas is adjusted.Type: ApplicationFiled: September 5, 2014Publication date: March 10, 2016Inventor: Milan Palinda Karunaratne