Patents by Inventor C. Larry Bruner

C. Larry Bruner 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: 20210017918
    Abstract: Systems, methods and apparatus for controlling operation of dual fuel engines are disclosed that regulate the fueling amounts provided by a first fuel and a second fuel during operation of the engine. The first fuel can be a liquid fuel and the second fuel can be a gaseous fuel. The fueling amounts are controlled to improve operational outcomes of the duel fuel engine.
    Type: Application
    Filed: September 24, 2020
    Publication date: January 21, 2021
    Inventors: C. Larry Bruner, Phanindra V. Garimella, Geomy George, Timothy P. Lutz, J. Steven Kolhouse, Edmund P. Hodzen, Robert Charles Borregard, Mark A. Rosswurm, Axel Otto zur Loye
  • Patent number: 10815913
    Abstract: Systems, methods and apparatus for controlling operation of dual fuel engines are disclosed that regulate the fuelling amounts provided by a first fuel and a second fuel during operation of the engine. The first fuel can be a liquid fuel and the second fuel can be a gaseous fuel. The fuelling amounts are controlled to improve operational outcomes of the duel fuel engine.
    Type: Grant
    Filed: May 3, 2017
    Date of Patent: October 27, 2020
    Assignee: Cummins Inc.
    Inventors: C. Larry Bruner, Phanindra V. Garimella, Geomy George, Timothy P. Lutz, J. Steven Kolhouse, Edmund P. Hodzen, Robert Charles Borregard, Mark A. Rosswurm, Axel Otto zur Loye
  • Patent number: 10391450
    Abstract: A method and system for mitigating a urea deposit within an SCR system that includes determining a mass of an accumulated urea deposit present within the SCR catalyst and SCR piping, comparing the mass of the accumulated urea deposit with a deposit upper threshold limit, and initiating an SCR regeneration event when the mass of the accumulated urea deposit is greater than the deposit upper threshold limit. The method further includes determining an amount of NH3 passing through the SCR catalyst downstream of the urea deposit, comparing the amount of NH3 passing through the SCR catalyst with an NH3 regeneration threshold limit, and terminating the SCR regeneration event when the level of NH3 passing through the SCR catalyst is less than the SCR NH3 regeneration threshold.
    Type: Grant
    Filed: July 25, 2017
    Date of Patent: August 27, 2019
    Assignee: Cummins IP, Inc.
    Inventors: Fan Zeng, C. Larry Bruner, Edmund P. Hodzen, Ian A. Package, Shankar Kumar, Krishna Kamasamudram
  • Patent number: 10260407
    Abstract: Systems, methods and apparatus for controlling operation of an engine structured to combust gaseous fuel such as a dual fuel engine, including an estimation of key parameters dependent on natural gas quality, are disclosed. The natural gas quality parameters are estimated from natural gas properties obtained from various sensed parameters associated with the engine.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: April 16, 2019
    Assignee: Cummins Inc.
    Inventors: Jinghua Zhong, C. Larry Bruner, Timothy P. Lutz
  • Patent number: 10132250
    Abstract: The system comprises a fuel description module structured to provide a first signal, and a control circuit operable to receive the first signal. The fuel description module comprises a fuel consumption detection package. The fuel consumption detection package an intake manifold temperature sensor and an exhaust temperature sensor, wherein the first signal corresponds to a difference between the exhaust manifold temperature (EMT) and the intake manifold temperature (IMT). The control circuit is responsive to the first signal to produce a second signal indicating a total energy content (Efuel) of fuel supplied to the dual-fuel engine. The Efuel value indicating the total energy content provided to the engine from a first fuel and a second fuel.
    Type: Grant
    Filed: June 8, 2015
    Date of Patent: November 20, 2018
    Assignee: Cummins Inc.
    Inventors: Jinghua Zhong, C. Larry Bruner, John F. Wright, Timothy P. Lutz, Phanindra Garimella, Jacob A. Brown
  • Patent number: 10100723
    Abstract: The present disclosure relates to dual fuel internal combustion engines with multiple cylinder banks and/or cylinder subsets, and exhaust aftertreatment systems associated therewith. Systems and methods are disclosed that relate to engine operations involving fuelling control for fuel cutout of one or more of the cylinder banks and/or cylinder subsets in response to a fuel cutout event to increase gaseous fuel substitution on the other cylinder banks and/or cylinder subsets to satisfy the torque request and thermal management conditions of the aftertreatment system.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: October 16, 2018
    Assignee: Cummins Inc.
    Inventors: J. Steven Kolhouse, Timothy P. Lutz, C. Larry Bruner, Christopher Pollitt
  • Patent number: 10100689
    Abstract: A system and method are disclosed for desulfating an oxidation catalyst in an aftertreatment system of a multifuel internal combustion engine. The oxidation catalyst can be desulfated in response to one or more desulfation triggering events. The desulfation process includes providing hydrocarbons from one or all of the multiple fuel sources to an upstream oxidation catalyst. The hydrocarbons react with the exhaust gas within the upstream oxidation catalyst to deplete oxygen in the exhaust flow to thereby reduce the desulfation temperature of the oxidation catalyst while elevating a temperature of the exhaust gas to a desulfation temperature range.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: October 16, 2018
    Assignee: Cummins Inc.
    Inventors: Prachetas A. Kale, Timothy P. Lutz, Junhui Li, Ashok Kumar, Krishna Kamasamudram, C. Larry Bruner
  • Patent number: 9988991
    Abstract: Systems and methods for controlling operation of dual fuel internal combustion engines in response to cylinder pressure based determinations are disclosed. The techniques control fueling contributions from a first fuel source and a second fuel source to achieve desired operational outcomes in response to the cylinder pressure based determinations.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: June 5, 2018
    Assignee: Cummins Inc.
    Inventors: Axel Otto zur Loye, Geomy George, Timothy P. Lutz, J. Steven Kolhouse, C. Larry Bruner
  • Publication number: 20180010515
    Abstract: The present disclosure relates to dual fuel internal combustion engines with multiple cylinder banks and/or cylinder subsets, and exhaust aftertreatment systems associated therewith. Systems and methods are disclosed that relate to engine operations involving fuelling control for fuel cutout of one or more of the cylinder banks and/or cylinder subsets in response to a fuel cutout event to increase gaseous fuel substitution on the other cylinder banks and/or cylinder subsets to satisfy the torque request and thermal management conditions of the aftertreatment system.
    Type: Application
    Filed: September 22, 2017
    Publication date: January 11, 2018
    Inventors: J. Steven Kolhouse, Timothy P. Lutz, C. Larry Bruner, Christopher Pollitt
  • Publication number: 20170333844
    Abstract: A method and system for mitigating a urea deposit within an SCR system that includes determining a mass of an accumulated urea deposit present within the SCR catalyst and SCR piping, comparing the mass of the accumulated urea deposit with a deposit upper threshold limit, and initiating an SCR regeneration event when the mass of the accumulated urea deposit is greater than the deposit upper threshold limit. The method further includes determining an amount of NH3 passing through the SCR catalyst downstream of the urea deposit, comparing the amount of NH3 passing through the SCR catalyst with an NH3 regeneration threshold limit, and terminating the SCR regeneration event when the level of NH3 passing through the SCR catalyst is less than the SCR NH3 regeneration threshold.
    Type: Application
    Filed: July 25, 2017
    Publication date: November 23, 2017
    Applicant: Cummins IP, Inc.
    Inventors: Fan Zeng, C. Larry Bruner, Edmund P. Hodzen, Ian A. Package, Shankar Kumar, Krishna Kamasamudram
  • Publication number: 20170234245
    Abstract: Systems, methods and apparatus for controlling operation of dual fuel engines are disclosed that regulate the fuelling amounts provided by a first fuel and a second fuel during operation of the engine. The first fuel can be a liquid fuel and the second fuel can be a gaseous fuel. The fuelling amounts are controlled to improve operational outcomes of the duel fuel engine.
    Type: Application
    Filed: May 3, 2017
    Publication date: August 17, 2017
    Inventors: C. Larry Bruner, Phanindra V. Garimella, Geomy George, Timothy P. Lutz, J. Steven Kolhouse, Edmund P. Hodzen, Robert Charles Borregard, Mark A. Rosswurm, Axel Otto zur Loye
  • Publication number: 20170218837
    Abstract: Systems, methods and apparatus for controlling operation of an engine structured to combust gaseous fuel such as a dual fuel engine, including an estimation of key parameters dependent on natural gas quality, are disclosed. The natural gas quality parameters are estimated from natural gas properties obtained from various sensed parameters associated with the engine.
    Type: Application
    Filed: January 25, 2017
    Publication date: August 3, 2017
    Inventors: Jinghua Zhong, C. Larry Bruner, Timothy P. Lutz
  • Patent number: 9718027
    Abstract: A method and system for mitigating a urea deposit within an SCR system that includes determining a mass of an accumulated urea deposit present within the SCR catalyst and SCR piping, comparing the mass of the accumulated urea deposit with a deposit upper threshold limit, and initiating an SCR regeneration event when the mass of the accumulated urea deposit is greater than the deposit upper threshold limit. The method further includes determining an amount of NH3 passing through the SCR catalyst downstream of the urea deposit, comparing the amount of NH3 passing through the SCR catalyst with an NH3 regeneration threshold limit, and terminating the SCR regeneration event when the level of NH3 passing through the SCR catalyst is less than the SCR NH3 regeneration threshold.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: August 1, 2017
    Assignee: Cummins IP, Inc.
    Inventors: Fan Zeng, C. Larry Bruner, Edmund P. Hodzen, Ian A. Package, Shankar Kumar, Krishna Kamasamudram
  • Patent number: 9709014
    Abstract: An engine starting system and technique include selecting a target engine speed profile from a plurality of engine speed profiles based on operator inputs and operating parameters of the vehicle. A feedback control strategy is used to substantially conform the engine speed with the target speed profile during starting until a target speed is reached in which fueling is initiated to start the engine.
    Type: Grant
    Filed: April 8, 2015
    Date of Patent: July 18, 2017
    Assignee: Cummins Inc.
    Inventors: Anant Puri, Fan Zeng, Vivek Sujan, Edmund Hodzen, C. Larry Bruner
  • Publication number: 20170009671
    Abstract: Systems and methods for controlling operation of dual fuel internal combustion engines in response to cylinder pressure based determinations are disclosed. The techniques control fueling contributions from a first fuel source and a second fuel source to achieve desired operational outcomes in response to the cylinder pressure based determinations.
    Type: Application
    Filed: September 26, 2016
    Publication date: January 12, 2017
    Inventors: Axel Otto zur Loye, Geomy George, Timothy P. Lutz, J. Steven Kolhouse, C. Larry Bruner
  • Patent number: 9464583
    Abstract: Systems and methods for controlling operation of dual fuel internal combustion engines in response to cylinder pressure based determinations are disclosed. The techniques control fuelling contributions from a first fuel source and a second fuel source to achieve desired operational outcomes in response to the cylinder pressure based determinations.
    Type: Grant
    Filed: February 6, 2014
    Date of Patent: October 11, 2016
    Assignee: Cummins Inc.
    Inventors: Axel Otto zur Loye, Geomy George, Timothy P. Lutz, Steven J. Kolhouse, C. Larry Bruner
  • Publication number: 20160281619
    Abstract: A system and method are disclosed for desulfating an oxidation catalyst in an aftertreatment system of a multifuel internal combustion engine. The oxidation catalyst can be desulfated in response to one or more desulfation triggering events. The desulfation process includes providing hydrocarbons from one or all of the multiple fuel sources to an upstream oxidation catalyst. The hydrocarbons react with the exhaust gas within the upstream oxidation catalyst to deplete oxygen in the exhaust flow to thereby reduce the desulfation temperature of the oxidation catalyst while elevating a temperature of the exhaust gas to a desulfation temperature range.
    Type: Application
    Filed: March 21, 2016
    Publication date: September 29, 2016
    Inventors: Prachetas A. Kale, Timothy P. Lutz, Junhui Li, Ashok Kumar, Krishna Kamasamudram, C. Larry Bruner
  • Patent number: 9410490
    Abstract: Systems and methods for controlling operation of dual fuel internal combustion engines are disclosed. The control techniques provide for override of a dual fuel mode of operation of the engine by selection of a diesel only fuelling mode in response to one or more operating conditions of the internal combustion engine.
    Type: Grant
    Filed: February 6, 2014
    Date of Patent: August 9, 2016
    Assignee: Cummins, Inc.
    Inventors: J. Steven Kolhouse, Timothy P. Lutz, C. Larry Bruner
  • Patent number: 9340202
    Abstract: Unique apparatuses, systems, methods, and techniques for control of engine systems are disclosed. One embodiment is a unique controls process providing engine start/stop functionality. In one form, the controls process includes engine stop controls which evaluate a plurality of engine stop request conditions and a plurality of engine stop capability conditions, as well as engine start controls which evaluate a plurality of engine start request conditions and a plurality of engine start capability conditions.
    Type: Grant
    Filed: June 3, 2014
    Date of Patent: May 17, 2016
    Assignee: Cummins Inc.
    Inventors: Martin Books, Praveen Muralidhar, Vivek Anand Sujan, Fan Zeng, C. Larry Bruner, Anant Puri, Hoseinali Borhan
  • Patent number: 9212587
    Abstract: Systems, methods and apparatus are disclosed for thermal management of an SCR catalyst in an exhaust aftertreatment system of an internal combustion engine that includes an exhaust throttle but lacks a particulate filter. The thermal management can include interpreting, initiating, and/or completing a thermal management event for the SCR catalyst for removal of contaminants such as hydrocarbons and urea deposits. The thermal management event includes at least one of closing the exhaust throttle and increasing the thermal output of the engine to expose the SCR catalyst to a sufficiently high temperature over a time period that desorbs a sufficient amount of the hydrocarbons and/or removes a sufficient amount of the urea deposits to restore SCR catalyst performance.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: December 15, 2015
    Assignee: Cummins Inc.
    Inventors: Jennifer Kay Light-Holets, C. Larry Bruner, Dan Langenderfer