Patents by Inventor Douglas Trombley

Douglas Trombley 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).

  • METHOD FOR OPERATING AN EGR COOLER IN AN INTERNAL COMBUSTION ENGINE
    Publication number: 20130014734
    Abstract: A method for operating an EGR system in an Internal Combustion Engine (ICE) is provided. The EGR system includes an EGR valve for regulating an exhaust gas flow into an EGR cooler and a by-pass line for by-passing the EGR cooler. The method includes monitoring an index value indicative of a clogging condition of the EGR cooler, closing the exhaust gas flow in the EGR cooler if the index value exceeds a predefined threshold, and opening the exhaust gas flow in the EGR cooler if the index value is decreasing.
    Type: Application
    Filed: July 10, 2012
    Publication date: January 17, 2013
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC.
    Inventors: Simone BARBERO, Douglas TROMBLEY, Francesco CIANFLONE, Giovanni MONTINARO
  • MASS AIR FLOW ESTIMATION BASED ON MANIFOLD ABSOLUTE PRESSURE
    Publication number: 20060069490
    Abstract: A control system that determines a mass air flow through a throttle of an internal combustion engine (ICE) having an intake manifold includes a calculator that calculates an estimated mass air flow based on a throttle position and an adjustment module that determines an adjustment value. The adjustment value is based on the estimated mass air flow, an estimated manifold absolute pressure and a measured manifold absolute pressure. A multiplier multiplies the estimated mass air flow by the adjustment value to determine the mass air flow.
    Type: Application
    Filed: September 29, 2004
    Publication date: March 30, 2006
    Inventors: Ljubisa Mladenovic, Kenneth Buslepp, Douglas Trombley