Patents by Inventor David J. Dronzkowski

David J. Dronzkowski 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 determining necessity of multiple vane cleaning procedures
    Patent number: 8020381
    Abstract: A method of operating an internal combustion engine with a variable geometry turbocharger whereby the turbocharger is cleaned of accumulated soot on a time based periodic basis.
    Type: Grant
    Filed: March 21, 2008
    Date of Patent: September 20, 2011
    Assignee: Detroit Diesel Corporation
    Inventors: Mark A. Zurawski, David J. Dronzkowski
  • METHOD FOR DETERMINING NECESSITY OF MULTIPLE VANE CLEANING PROCEDURES
    Publication number: 20090151351
    Abstract: A method of operating an internal combustion engine with a variable geometry turbocharger whereby the turbocharger is cleaned of accumulated soot on a time based periodic basis.
    Type: Application
    Filed: March 21, 2008
    Publication date: June 18, 2009
    Applicant: Detroit Diesel Corporation
    Inventors: Mark A. Zurawski, David J. Dronzkowski
  • VARIABLE GEOMETRY TURBOCHARGER EXTENDER IDLE VANE CYCLE
    Publication number: 20090151354
    Abstract: A method to operate and electronic controlled internal combustion engine, and particularly a heavy duty diesel engine, to effect vane cleaning of a variable geometry turbocharger.
    Type: Application
    Filed: December 18, 2007
    Publication date: June 18, 2009
    Applicant: Detroit Diesel Corporation
    Inventors: David J. Dronzkowski, Matthew T. Baird