Patents by Inventor Axel Otto zur Loye

Axel Otto zur Loye 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: 10711723
    Abstract: Systems and methods for controlling fuelling of dual fuel internal combustion engines are disclosed. The control techniques maximize the substitution rate of gaseous fuel for the liquid fuel by determining a target fuelling amount for the liquid fuel and then regulating an actual fuelling amount of the liquid fuel in response to engine speed and power variations and by modulating the flow rate of the gaseous fuel to the engine.
    Type: Grant
    Filed: April 7, 2016
    Date of Patent: July 14, 2020
    Assignee: Cummins Inc.
    Inventors: Robert J. Thomas, Axel Otto zur Loye, Christopher Pollitt, Robert C. Borregard
  • Patent number: 10450973
    Abstract: A system includes an internal combustion engine having a number of cylinders, with at least one of the cylinders plumbed to have a complete recycle of the exhaust gases from the cylinder. The system further includes the completely recycled cylinder having an EGR stroke cycle, and the non-recycled cylinders of the engine having an exhaust stroke cycle. The system includes the EGR stroke cycle being distinct from the exhaust stroke cycle. An amount and composition of the exhaust gases from the recycled cylinder are distinct from the amount and composition of the exhaust gases from the non-recycled cylinders, at least at certain operating conditions of the engine.
    Type: Grant
    Filed: April 5, 2017
    Date of Patent: October 22, 2019
    Assignee: Cummins Inc.
    Inventors: Samuel C. Geckler, Madhuri Gandikota, Rajkumar Subramanian, Axel Otto zur Loye
  • Patent number: 10227934
    Abstract: Apparatuses, methods and systems for controlling operation of dual fuel engines are disclosed. One embodiment is a method for controlling operation of a dual fuel engine based upon a combustion index value. The combustion index may be empirically determined to provide desired engine operation at a plurality of ratios of gaseous fuel and liquid fuel. The desired engine operation may include a number of criteria including, for examiner an engine knock criterion and/or an exhaust emissions criterion. The combustion index value may be determined during operation of the engine based upon measured, estimated or predicted engine operating parameters. The combustion index value may be utilized to interpolate between a first engine operating map for a first ratio of gaseous fuel and liquid fuel and a second engine operating map for a second ratio of gaseous fuel and liquid fuel.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: March 12, 2019
    Assignee: Cummins Inc.
    Inventors: Robert J. Thomas, Axel Otto Zur Loye, Timothy P. Lutz, Christopher Pollitt, Phanindra V. Garimella
  • 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
  • Patent number: 9988999
    Abstract: A system and method for regeneration of an aftertreatment component are described. The disclosed method can employ any one or combination of operating modes that obtain a target condition of the exhaust gas to support or initiate regeneration of the aftertreatment device.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: June 5, 2018
    Assignee: Cummins Inc.
    Inventors: Richard J. Ancimer, Axel Otto zur Loye, Arvind Suresh, Colin L. Norris
  • 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: 20170204797
    Abstract: A system includes an internal combustion engine having a number of cylinders, with at least one of the cylinders plumbed to have a complete recycle of the exhaust gases from the cylinder. The system further includes the completely recycled cylinder having an EGR stroke cycle, and the non-recycled cylinders of the engine having an exhaust stroke cycle. The system includes the EGR stroke cycle being distinct from the exhaust stroke cycle. An amount and composition of the exhaust gases from the recycled cylinder are distinct from the amount and composition of the exhaust gases from the non-recycled cylinders, at least at certain operating conditions of the engine.
    Type: Application
    Filed: April 5, 2017
    Publication date: July 20, 2017
    Inventors: Samuel C. Geckler, Madhuri Gandikota, Rajkumar Subramanian, Axel Otto zur Loye
  • Patent number: 9631582
    Abstract: A system includes an internal combustion engine having a number of cylinders, with at least one of the cylinders plumbed to have a complete recycle of the exhaust gases from the cylinder. The system further includes the completely recycled cylinder having an EGR stroke cycle, and the non-recycled cylinders of the engine having an exhaust stroke cycle. The system includes the EGR stroke cycle being distinct from the exhaust stroke cycle. An amount and composition of the exhaust gases from the recycled cylinder are distinct from the amount and composition of the exhaust gases from the non-recycled cylinders, at least at certain operating conditions of the engine.
    Type: Grant
    Filed: December 24, 2014
    Date of Patent: April 25, 2017
    Assignee: Cummins Inc.
    Inventors: Samuel C. Geckler, Madhuri Gandikota, Rajkumar Subramanian, Axel Otto zur Loye
  • Publication number: 20170089273
    Abstract: Apparatuses, methods and systems for controlling operation of dual fuel engines are disclosed. One embodiment is a method for controlling operation of a dual fuel engine based upon a combustion index value. The combustion index may be empirically determined to provide desired engine operation at a plurality of ratios of gaseous fuel and liquid fuel. The desired engine operation may include a number of criteria including, for examiner an engine knock criterion and/or an exhaust emissions criterion. The combustion index value may be determined during operation of the engine based upon measured, estimated or predicted engine operating parameters. The combustion index value may be utilized to interpolate between a first engine operating map for a first ratio of gaseous fuel and liquid fuel and a second engine operating map for a second ratio of gaseous fuel and liquid fuel.
    Type: Application
    Filed: September 28, 2016
    Publication date: March 30, 2017
    Inventors: Robert J. Thomas, Axel Otto Zur Loye, Timothy P. Lutz, Christopher Pollitt, Phanindra V. Garimella
  • 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: 20160215723
    Abstract: Systems and methods for controlling fuelling of dual fuel internal combustion engines are disclosed. The control techniques maximize the substitution rate of gaseous fuel for the liquid fuel by determining a target fuelling amount for the liquid fuel and then regulating an actual fuelling amount of the liquid fuel in response to engine speed and power variations and by modulating the flow rate of the gaseous fuel to the engine.
    Type: Application
    Filed: April 7, 2016
    Publication date: July 28, 2016
    Inventors: Robert J. Thomas, Axel Otto zur Loye, Christopher Pollitt, Robert C. Borregard
  • Publication number: 20160084182
    Abstract: A system and method for regeneration of an aftertreatment component are described. The disclosed method can employ any one or combination of operating modes that obtain a target condition of the exhaust gas to support or initiate regeneration of the aftertreatment device.
    Type: Application
    Filed: December 1, 2015
    Publication date: March 24, 2016
    Inventors: Richard J. Ancimer, Axel Otto zur Loye, Arvind Suresh, Colin L. Norris
  • Publication number: 20160061129
    Abstract: A system and method are disclosed for regenerating an oxidation catalyst used in an aftertreatment system of a multifuel internal combustion engine. According to at least one aspect of the present disclosure, recirculated exhaust gas is employed to enable recovery periods in which the engine generates oxygen-depleted exhaust to desulfate and deoxidize the oxidation catalyst. In certain embodiments, the system may include an exhaust gas recirculation system with a cooler and regulation valve to introduce exhaust gas into the engine.
    Type: Application
    Filed: August 29, 2014
    Publication date: March 3, 2016
    Inventors: Timothy P. Lutz, Axel Otto zur Loye
  • Patent number: 9228536
    Abstract: Systems and methods for controlling operation of dual fuel internal combustion engines in response to a load shedding event are disclosed. The control techniques mitigate the amount of uncombusted gaseous fuel passing into the exhaust and/or aftertreatment system and reduce the rate at which uncombusted gaseous fuel enters the cylinders to reduce engine torque output and/or speed in response to the load shedding event.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: January 5, 2016
    Assignee: Cummins Inc.
    Inventors: Axel Otto zur Loye, Timothy P. Lutz
  • Patent number: 9212614
    Abstract: A system and method for regeneration of an aftertreatment component are described. The disclosed method can employ any one or combination of operating modes that obtain a target condition of the exhaust gas to support or initiate regeneration of the aftertreatment device.
    Type: Grant
    Filed: November 21, 2013
    Date of Patent: December 15, 2015
    Assignee: Cummins Inc.
    Inventors: Richard J. Ancimer, Axel Otto zur Loye, Arvind Suresh, Colin L. Norris
  • Patent number: 9103294
    Abstract: Methods and systems are disclosed for fuel drift estimation and compensation using exhaust oxygen levels and fresh air flow measurements. An actual fueling to the engine cylinders is determined from the exhaust oxygen level and fresh air flow to the internal combustion engine. The actual fueling is compared to an expected fueling based on the fueling command provided to the internal combustion engine. The difference between the actual fueling and expected fueling is fuel drift error attributed to changes or drift in the fuel injection system and is used to correct or compensate future fueling commands for the fuel drift.
    Type: Grant
    Filed: October 16, 2012
    Date of Patent: August 11, 2015
    Assignee: Cummins Inc.
    Inventors: Vivek A. Sujan, Ashwin Vyas, Mert Geveci, Axel Otto zur Loye
  • Publication number: 20150219027
    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: Application
    Filed: February 6, 2014
    Publication date: August 6, 2015
    Applicant: Cummins Inc.
    Inventors: Axel Otto zur Loye, Geomy George, Timothy P. Lutz, Steven J. Kolhouse, C. Larry Bruner