Patents by Inventor Allen R. Bowman

Allen R. Bowman 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).

  • THERMAL MANAGEMENT OF AFTERTREATMENT SYSTEMS
    Publication number: 20180223756
    Abstract: A method for operating an aftertreatment system of an engine is disclosed. The method includes measuring, using one or more sensors, at least one operating parameter of the engine system; estimating, by a controller, a mass of hydrocarbon retained by an aftertreatment component using the at least one operating parameter; determining, by the controller, a percent load of hydrocarbon using the mass of hydrocarbon; comparing, by the controller, the percent load to a predetermined hydrocarbon load threshold; and providing at least one alert indicating a need to initiate a stepwise increase in an engine power to one or more predetermined engine speeds for one or more predetermined durations, if the percent load exceeds the predetermined hydrocarbon load threshold.
    Type: Application
    Filed: February 8, 2017
    Publication date: August 9, 2018
    Applicant: Caterpillar Inc.
    Inventors: Wesley G. Benson, Colleen J. Anderson, Joseph K. Getz, Allen R. Bowman, William B. Marcum, Brandon T. Shull