Patents by Inventor James Randall Nebergall

James Randall Nebergall 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).

  • Systems and methods for cylinder deactivation with deactivated cylinder pressure control
    Patent number: 10302025
    Abstract: Systems, apparatus, and methods are disclosed that include an internal combustion engine having a plurality of cylinders operable by a valve actuation mechanism that opens and closes the intake and exhaust valves during nominal engine operations. In response to engine operations indicating a cylinder deactivation condition, one or more the cylinders is selected for deactivation and operated by combusting an amount of fuel that is effective to limit air flow through the deactivated cylinder(s) so that the air flow and combusted fuel amount are less than during nominal cylinder operations.
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: May 28, 2019
    Assignee: Cummins Inc.
    Inventors: Kenneth M. Follen, Suk-Min Moon, Vivek A. Sujan, James Randall Nebergall
  • SYSTEMS AND METHODS FOR CYLINDER DEACTIVATION WITH DEACTIVATED CYLINDER PRESSURE CONTROL
    Publication number: 20170204799
    Abstract: Systems, apparatus, and methods are disclosed that include an internal combustion engine having a plurality of cylinders operable by a valve actuation mechanism that opens and closes the intake and exhaust valves during nominal engine operations. In response to engine operations indicating a cylinder deactivation condition, one or more the cylinders is selected for deactivation and operated by combusting an amount of fuel that is effective to limit air flow through the deactivated cylinder(s) so that the air flow and combusted fuel amount are less than during nominal cylinder operations.
    Type: Application
    Filed: January 17, 2017
    Publication date: July 20, 2017
    Inventors: Kenneth M. Follen, Suk-Min Moon, Vivek A. Sujan, James Randall Nebergall