Patents by Inventor Robert J. Iverson

Robert J. Iverson 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).

  • System and method for adaptive aftertreatment control of NO
    Patent number: 9695727
    Abstract: System and method of treating exhaust gas from an internal combustion engine using selective catalytic reduction (SCR) and adaptive control of diesel exhaust fluid (DEF) injection. Adaptive control of DEF injection includes intentionally underdosing the injected DEF based on an amount of DEF determined by an electronic control unit as an amount needed to reduce nitrogen oxides (NOx) to a compliance threshold. Since underdosing prevents ammonia (NH3) slip from occurring due to low levels of DEF, a sensor accurately senses NOx present in the exhaust gas at an output of an SCR chamber. An electronic control unit increases the amount of injected DEF based on the sensor.
    Type: Grant
    Filed: September 2, 2015
    Date of Patent: July 4, 2017
    Assignee: Deere & Company
    Inventors: Taner Tuken, Robert J. Iverson
  • SYSTEM AND METHOD FOR ADAPTIVE AFTERTREATMENT CONTROL OF NOX
    Publication number: 20170058740
    Abstract: System and method of treating exhaust gas from an internal combustion engine using selective catalytic reduction (SCR) and adaptive control of diesel exhaust fluid (DEF) injection. Adaptive control of DEF injection includes intentionally underdosing the injected DEF based on an amount of DEF determined by an electronic control unit as an amount needed to reduce nitrogen oxides (NOx) to a compliance threshold. Since underdosing prevents ammonia (NH3) slip from occurring due to low levels of DEF, a sensor accurately senses NOx present in the exhaust gas at an output of an SCR chamber. An electronic control unit increases the amount of injected DEF based on the sensor.
    Type: Application
    Filed: September 2, 2015
    Publication date: March 2, 2017
    Inventors: Taner Tuken, Robert J. Iverson
  • Emission abatement assembly having a mixing baffle and associated method
    Patent number: 9328640
    Abstract: An emission abatement assembly includes a fuel-fired burner having a combustion chamber and a particulate filter positioned downstream of the fuel-fired burner. A mixing baffle is positioned between the fuel-fired burner and the particulate filter.
    Type: Grant
    Filed: June 18, 2014
    Date of Patent: May 3, 2016
    Assignee: Faurecia Emissions Control Technologies, USA, LLC
    Inventors: Robert J. Iverson, John B. Abel, Navin Khadiya, John P. Nohl, Geoff Morgan, Wilbur H. Crawley
  • Emission Abatement Assembly Having A Mixing Baffle And Associated Method
    Publication number: 20140298774
    Abstract: An emission abatement assembly includes a fuel-fired burner having a combustion chamber and a particulate filter positioned downstream of the fuel-fired burner. A mixing baffle is positioned between the fuel-fired burner and the particulate filter.
    Type: Application
    Filed: June 18, 2014
    Publication date: October 9, 2014
    Inventors: Robert J. Iverson, John B. Abel, Navin Khadiya, John P. Nohl, Geoff Morgan, Wilbur H. Crawley
  • Emission abatement assembly having a mixing baffle and associated method
    Patent number: 8789363
    Abstract: An emission abatement assembly includes a fuel-fired burner having a combustion chamber and a particulate filter positioned downstream of the fuel-fired burner. A mixing baffle is positioned between the fuel-fired burner and the particulate filter.
    Type: Grant
    Filed: June 13, 2007
    Date of Patent: July 29, 2014
    Assignee: Faurecia Emissions Control Technologies, USA, LLC
    Inventors: Robert J. Iverson, John B. Abel, Navin Khadiya, John P. Nohl, Geoff Morgan, Wilbur H. Crawley
  • EMISSION ABATEMENT ASSEMBLY HAVING A MIXING BAFFLE AND ASSOCIATED METHOD
    Publication number: 20080307780
    Abstract: An emission abatement assembly includes a fuel-fired burner having a combustion chamber and a particulate filter positioned downstream of the fuel-fired burner. A mixing baffle is positioned between the fuel-fired burner and the particulate filter.
    Type: Application
    Filed: June 13, 2007
    Publication date: December 18, 2008
    Inventors: Robert J. Iverson, John B. Abel, Navin Khadiya, John P. Nohl, Geoff Morgan, Wilbur H. Crawley