Patents by Inventor John F. Wirkus

John F. Wirkus 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).

  • Exhaust gas recirculation afterburner
    Patent number: 7121081
    Abstract: An embodiment of the invention includes an exhaust gas recirculation (EGR) valve, an intake pipe, and an afterburner. As the intake valve communicates an exhaust gas stream to an EGR valve, an afterburner affixed to an inside wall of the intake pipe captures and burns large particles contained in the exhaust gas stream to prevent obstruction of the EGR valve.
    Type: Grant
    Filed: November 26, 2003
    Date of Patent: October 17, 2006
    Assignee: GSI Engine Management Group
    Inventors: John F. Wirkus, Robert F. Killion