Patents by Inventor Roy James Primus

Roy James Primus 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: 10294846
    Abstract: A system includes one or more processors configured to be operably coupled to a vehicle system configured to travel along a route during a trip. The vehicle system has a vehicle particulate filter (VPF) disposed within an exhaust passage of the vehicle system. The one or more processors are configured to determine, based on trip information about the trip of the vehicle system, one or more regeneration-incompatible (RI) portions of the trip. The RI portions are associated with operating conditions of the vehicle system that are unsuitable for contemporaneous active regeneration of the VPF. The one or more processors are further configured to schedule an active regeneration (AR) event for the vehicle system based on the one or more RI portions of the trip. The AR event occurs during a regeneration portion of the trip.
    Type: Grant
    Filed: August 7, 2017
    Date of Patent: May 21, 2019
    Assignee: GE GLOBAL SOURCING LLC
    Inventors: Daniel George Norton, Thomas Michael Lavertu, Roy James Primus
  • Publication number: 20190106132
    Abstract: A control system includes a communication device onboard a vehicle system approaching or entering an airflow restricted area along a route and one or more processors. The communication device configured to receive status messages that contain data parameters representative of ambient conditions within the airflow restricted area. The processors are configured to monitor the ambient conditions and determine different power output upper limits that a trail propulsion vehicle of the vehicle system can generate within the airflow restricted area based on the ambient conditions and different power outputs generated by a lead propulsion vehicle of the vehicle system. The processors further configured to communicate instructions to control the lead propulsion vehicle within the airflow restricted area to generate the power output of the different power outputs that results in the greatest total available power output of the vehicle system as the vehicle system travels within the airflow restricted area.
    Type: Application
    Filed: December 6, 2018
    Publication date: April 11, 2019
    Inventors: Thomas Michael Lavertu, Roy James Primus, Jennifer Lynn Jackson
  • Patent number: 10190509
    Abstract: A method includes receiving a plurality of signals from a plurality of sensors coupled to a dual fuel engine. The method further includes altering an actual speed of the dual fuel engine to obtain a predetermined air-fuel ratio in response to a changed operating condition of the dual fuel engine determined based on the plurality of signals, so as to maintain operation of the dual fuel engine between knock and misfire conditions.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: January 29, 2019
    Assignee: GE Global Sourcing LLC
    Inventors: Thomas Michael Lavertu, Roy James Primus, Adam Edgar Klingbeil, James Robert Mischler
  • Patent number: 10183683
    Abstract: A control system includes a communication device onboard a vehicle system approaching or entering an airflow restricted area along a route and one or more processors. The communication device configured to receive status messages that contain data parameters representative of ambient conditions within the airflow restricted area. The processors are configured to monitor the ambient conditions and determine different power output upper limits that a trail propulsion vehicle of the vehicle system can generate within the airflow restricted area based on the ambient conditions and different power outputs generated by a lead propulsion vehicle of the vehicle system. The processors further configured to communicate instructions to control the lead propulsion vehicle within the airflow restricted area to generate the power output of the different power outputs that results in the greatest total available power output of the vehicle system as the vehicle system travels within the airflow restricted area.
    Type: Grant
    Filed: January 3, 2017
    Date of Patent: January 22, 2019
    Assignee: General Electric Company
    Inventors: Thomas Michael Lavertu, Roy James Primus, Jennifer Lynn Jackson
  • Patent number: 10119460
    Abstract: A system includes an engine coupled with a primary shaft that drives a first electric generator for generating electrical power via a gear subsystem. The system also includes a turbocharger assembly having at least one gas turbine engine configured for driving the primary shaft and coupled in parallel with the engine. The turbocharger assembly includes multiple compressors configured to provide a flow of compressed fluid into both the engine and the at least one gas turbine engine and multiple turbines configured to utilize exhausts from both the engine and the one gas turbine for driving the primary shaft. Further, the system includes a controller configured to operate a plurality of valves for controlling optimal intake fluid pressure into the engine and the turbocharger assembly and fuel injections into the engine and the at least one gas turbine engine.
    Type: Grant
    Filed: September 18, 2014
    Date of Patent: November 6, 2018
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Roy James Primus, Adam Edgar Klingbeil, Narendra Digamber Joshi, Omowoleola Chukwuemeka Akinyemi, Thomas Michael Lavertu
  • Patent number: 10094324
    Abstract: A method of operating an internal combustion engine is provided. The method includes combusting a mixture of fresh air and fuel within multiple cylinders. The method also includes directing a first portion of exhaust gases into a first-stage turbine and a second-stage turbine of a turbocharger for expanding the exhaust gases, directing a second portion of exhaust gases from the exhaust manifold via an exhaust channel bypassing the first-stage turbine and recirculating a third portion of exhaust gases into an intake manifold after mixing with fresh air. The method includes controlling at least one of: reducing a normal engine speed at each engine power setting while maintaining constant engine power level by increasing a fuel injection per cycle; concurrently increasing a flow rate of the third portion of exhaust gas during recirculation; and advancing a fuel injection timing for reducing emission levels that meets Tier 4 requirements.
    Type: Grant
    Filed: May 30, 2013
    Date of Patent: October 9, 2018
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Thomas Michael Lavertu, Adam Edgar Klingbeil, Roy James Primus, Omowoleola Chukwuemeka Akinyemi, Venu Gopal Gummadavelli, Barry Allen Record, James Henry Yager
  • Patent number: 10018130
    Abstract: Fuel injector wear compensation methodologies for use with internal combustion engines that alter the injection schedule over the life of the fuel injector(s) by using methods that conduct a primary injection of fuel in the engine (primary fuel event), per an injection schedule within an engine cycle; compare a measured engine parameter(s) to a reference value(s); and then alter the injection schedule applied to the engine, based on the comparing. Another method comprises: during injection events, inject a first fuel in a combustion chamber of the engine; measure an engine parameter(s) of the engine during operation; compare the engine parameter(s) to a reference value(s); add a post injection event of a second fuel during the injection events, based on the comparison. The methods can be applied with single or dual fuels.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: July 10, 2018
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Thomas Michael Lavertu, Adam Edgar Klingbeil, Roy James Primus
  • Publication number: 20180186390
    Abstract: A control system includes a communication device onboard a vehicle system approaching or entering an airflow restricted area along a route and one or more processors. The communication device configured to receive status messages that contain data parameters representative of ambient conditions within the airflow restricted area. The processors are configured to monitor the ambient conditions and determine different power output upper limits that a trail propulsion vehicle of the vehicle system can generate within the airflow restricted area based on the ambient conditions and different power outputs generated by a lead propulsion vehicle of the vehicle system. The processors further configured to communicate instructions to control the lead propulsion vehicle within the airflow restricted area to generate the power output of the different power outputs that results in the greatest total available power output of the vehicle system as the vehicle system travels within the airflow restricted area.
    Type: Application
    Filed: January 3, 2017
    Publication date: July 5, 2018
    Inventors: Thomas Michael Lavertu, Roy James Primus, Jennifer Lynn Jackson
  • Patent number: 9964056
    Abstract: A method includes controlling an engine speed based on: intake manifold air temperature and/or intake manifold pressure one, or more, of the following data parameters: an engine load as a function of a fuel level, a fuel injecting timing, an intake oxygen concentration, a constituent concentration from the exhaust gas flow, an engine power, and an engine torque. The method also recirculates a portion of the exhaust gas flow to the combustion cylinders of the engine via a recirculation channel, as a function of intake manifold temperature and/or intake manifold pressure at which the engine is operated. An engine system, other methods, and a non-transitory computer readable medium encoded with a program, to enable a processor-based control unit to control aspects of the engine are also disclosed.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: May 8, 2018
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Roy James Primus, Omowoleola Chukwuemeka Akinyemi, Thomas Michael Lavertu, James Robert Mischler, Venu Gummadavelli Gupta
  • Publication number: 20180058296
    Abstract: A system includes one or more processors configured to be operably coupled to a vehicle system configured to travel along a route during a trip. The vehicle system has a vehicle particulate filter (VPF) disposed within an exhaust passage of the vehicle system. The one or more processors are configured to determine, based on trip information about the trip of the vehicle system, one or more regeneration-incompatible (RI) portions of the trip. The RI portions are associated with operating conditions of the vehicle system that are unsuitable for contemporaneous active regeneration of the VPF. The one or more processors are further configured to schedule an active regeneration (AR) event for the vehicle system based on the one or more RI portions of the trip. The AR event occurs during a regeneration portion of the trip.
    Type: Application
    Filed: August 7, 2017
    Publication date: March 1, 2018
    Inventors: Daniel George Norton, Thomas Michael Lavertu, Roy James Primus
  • Patent number: 9903284
    Abstract: Dual-fuel engine system includes cylinders in which the cylinders have an intake valve and an exhaust valve that control a flow of fluid into and out of a combustion chamber of the corresponding cylinder. The intake valve is configured to have an intake valve closure (IVC) timing. The dual-fuel engine system is configured to operate in a single-fuel mode and a dual-fuel mode. The combustion chamber and a piston are designed to provide a compression ratio. The dual-fuel engine system also includes one or more processors that are operably coupled to and configured to control operation of the first fuel injector. The compression ratio and the IVC timing are selected to achieve a target pre-combustion temperature. The target pre-combustion temperature permits the dual-fuel engine system to operate at a high substitution rate in the dual-fuel mode and at a sufficient fuel efficiency in the single-fuel mode.
    Type: Grant
    Filed: October 31, 2016
    Date of Patent: February 27, 2018
    Assignee: General Electric Company
    Inventors: Thomas Michael Lavertu, Roy James Primus, Venu Gummadavelli Gupta, Sebastian Walter Freund, Omowoleola Chukwuemeka Akinyemi, Adam Edgar Klingbeil, Victor Manuel Salazar
  • Patent number: 9863342
    Abstract: Various methods and systems are provided for adjusting an air-fuel ratio for combustion in an engine. In one embodiment, a method for an engine (e.g., a method for controlling an engine system) comprises responding to a sensed change in a load on the engine, or indications of engine knock or misfire, by one or more of: altering a speed of the engine, adjusting a fueling flow rate into at least one cylinder of the engine, and adjusting a position of a valve in a bypass passage configured to direct compressed intake air away from cylinders of the engine to obtain a determined air-fuel ratio; and thereby maintaining an air-fuel ratio in a determined range.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: January 9, 2018
    Assignee: General Electric Company
    Inventors: Chetan Sharadchandra Tulapurkar, Manoj Gokhale, Roy James Primus, Leslie Orin Trask, James Robert Mischler, Adam Edgar Klingbeil, Thomas Michael Lavertu
  • Publication number: 20180003070
    Abstract: Various methods and systems are provided for generating exhaust energy and converting exhaust energy to electrical energy while an engine is not running. In one example, a system for an engine comprises: a first turbocharger including a first compressor driven by a first turbine, the first turbine disposed in an exhaust of the engine; a fuel burner fluidly coupled to the exhaust upstream of the first turbine; a generator coupled to one of the first turbine or an auxiliary, second turbine fluidly coupled to the exhaust downstream of the fuel burner; and one or more bypass valves configured to adjust a flow of air that bypasses the engine and is delivered to the fuel burner.
    Type: Application
    Filed: June 30, 2016
    Publication date: January 4, 2018
    Applicant: General Electric Company
    Inventors: James Robert Mischler, Roy James Primus, Thomas Michael Lavertu
  • Publication number: 20170284318
    Abstract: A system in one embodiment includes at least one cylinder, a supplemental boost supply, and a supply line. The at least one cylinder is configured for use in a reciprocating internal combustion engine, and includes a combustion portion and a crank portion on opposite sides of a piston. The at least one cylinder also includes an intake port and an exhaust port in fluid communication with the combustion portion. The supplemental boost supply is configured to provide a supplemental air supply to the combustion portion of the engine when the engine is idling to increase pressure in the combustion portion. The supply line couples the supplemental boost supply to the intake port.
    Type: Application
    Filed: March 30, 2016
    Publication date: October 5, 2017
    Inventors: Adam Edgar Klingbeil, Roy James Primus, Edward Joseph Hall
  • Publication number: 20170254286
    Abstract: A control system for an engine includes one or more processors configured to determine when a change in one or more of oxygen or fuel supplied to an engine. The one or more processors also are configured to, responsive to determining the change in oxygen and/or fuel supplied to an engine, direct one or more fuel injectors of the engine to begin injecting fuel into one or more cylinders of the engine during both a first fuel injection and a second fuel injection during each cycle of a multi-stroke engine cycle of the one or more cylinders.
    Type: Application
    Filed: March 4, 2016
    Publication date: September 7, 2017
    Inventors: Roy James Primus, Thomas Michael Lavertu, Adam Edgar Klingbeil
  • Patent number: 9695723
    Abstract: Various methods and systems are provided for a combustion system of an engine. In one example, a combustion system comprises a piston crown bowl with a central apex, a combustion chamber operable at a compression ratio in a range of from about 13:1 to about 17:1, the combustion chamber formed at least partially by the piston crown bowl, and a fuel injector with a nozzle extending into a central portion of the combustion chamber that is operable to inject fuel directly into the combustion chamber, the nozzle defining a number of apertures that is in a range of from six to ten.
    Type: Grant
    Filed: January 15, 2014
    Date of Patent: July 4, 2017
    Assignee: General Electric Company
    Inventors: Barry Record, Roy James Primus, Venu Gummadavelli, James Henry Yager, Omowoleola Chukwuemeka Akinyemi, Adam Edgar Klingbeil, Thomas Michael Lavertu
  • Publication number: 20170089278
    Abstract: Various methods and systems are provided for adjusting an air-fuel ratio for combustion in an engine. In one embodiment, a method for an engine (e.g., a method for controlling an engine system) comprises responding to a sensed change in a load on the engine, or indications of engine knock or misfire, by one or more of: altering a speed of the engine, adjusting a fueling flow rate into at least one cylinder of the engine, and adjusting a position of a valve in a bypass passage configured to direct compressed intake air away from cylinders of the engine to obtain a determined air-fuel ratio; and thereby maintaining an air-fuel ratio in a determined range.
    Type: Application
    Filed: September 25, 2015
    Publication date: March 30, 2017
    Inventors: Chetan Sharadchandra Tulapurkar, Manoj Gokhale, Roy James Primus, Leslie Orin Trask, James Robert Mischler, Adam Edgar Klingbeil, Thomas Michael Lavertu
  • Publication number: 20160333814
    Abstract: Fuel injector wear compensation methodologies for use with internal combustion engines that alter the injection schedule over the life of the fuel injector(s) by using methods that conduct a primary injection of fuel in the engine (primary fuel event), per an injection schedule within an engine cycle; compare a measured engine parameter(s) to a reference value(s); and then alter the injection schedule applied to the engine, based on the comparing. Another method comprises: during injection events, inject a first fuel in a combustion chamber of the engine; measure an engine parameter(s) of the engine during operation; compare the engine parameter(s) to a reference value(s); add a post injection event of a second fuel during the injection events, based on the comparison. The methods can be applied with single or dual fuels.
    Type: Application
    Filed: March 31, 2016
    Publication date: November 17, 2016
    Inventors: Thomas Michael Lavertu, Adam Edgar Klingbeil, Roy James Primus
  • Publication number: 20160319742
    Abstract: A system includes an engine coupled with a primary shaft that drives a first electric generator for generating electrical power via a gear subsystem, The system also includes a turbocharger assembly having at least one gas turbine engine configured for driving the primary shaft and coupled in parallel with the engine. The turbocharger assembly includes multiple compressors configured to provide a flow of compressed fluid into both the engine and the at least one gas turbine engine and multiple turbines configured to utilize exhausts from both the engine and the one gas turbine for driving the primary shaft. Further, the system includes a controller configured to operate a plurality of valves for controlling optimal intake fluid pressure into the engine and the turbocharger assembly and fuel injections into the engine and the at least one gas turbine engine.
    Type: Application
    Filed: September 18, 2014
    Publication date: November 3, 2016
    Inventors: Roy James Primus, Adam Edgar Klingbeil, Narendra Digamber Joshi, Omowoleola Chukwuemeka Akinyemi, Thomas Michael Lavertu
  • Publication number: 20160069287
    Abstract: A method involves receiving a plurality of engine parameters and a sensed ambient operating condition during operation of an engine and determining a current substitution rate based on the plurality of engine parameter. The method also involves determining at least one of a pre-combustion temperature and an end gas temperature based on the plurality of engine parameters and the sensed ambient operating condition and determining a maximum substitution rate based on at least one of the pre-combustion temperature and the end gas temperature. The method further involves comparing the current substitution rate with the maximum substitution rate and controlling at least one engine parameter among the plurality of engine parameters if the current substitution rate is different from the maximum substitution rate so as to generate the current substitution rate to less than or equal to the maximum substitution rate.
    Type: Application
    Filed: September 4, 2014
    Publication date: March 10, 2016
    Inventors: Thomas Michael Lavertu, Adam Edgar Klingbeil, Omowoleola Chukwuemeka Akinyemi, Victor Manuel Salazar, Roy James Primus