Patents by Inventor Joshua J. Ksiazkiewicz

Joshua J. Ksiazkiewicz 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).

  • Control system and method for controlling engine exhaust back pressure
    Patent number: 8364379
    Abstract: A control system for an engine includes a restriction determination module and a valve control module. The restriction determination module determines a desired exhaust back pressure of the engine based on an exhaust flow rate of the engine. The valve control module selectively adjusts a valve position of an exhaust valve that restricts an exhaust flow of the engine based on the desired exhaust back pressure. The exhaust valve may include a valve body, a throttle plate, and an annular protrusion coupled to an inner surface of the valve body and protruding towards the throttle plate. The annular protrusion may abut a side of the throttle plate and may restrict fluid flow through an annular space between the throttle plate and the inner surface when the throttle plate is positioned in a rotational position transverse to a direction of fluid flow. A related method is also provided.
    Type: Grant
    Filed: May 7, 2010
    Date of Patent: January 29, 2013
    Inventors: Timothy J. Johnson, Kevin C. Wong, Mark D. Finkel, Steven M. Hubble, Roger Bennett, Richard W. Gushman, Kim Bloxsom, Joshua J. Ksiazkiewicz
  • CONTROL SYSTEM AND METHOD FOR CONTROLLING ENGINE EXHAUST BACK PRESSURE
    Publication number: 20110276248
    Abstract: A control system for an engine includes a restriction determination module and a valve control module. The restriction determination module determines a desired exhaust back pressure of the engine based on an exhaust flow rate of the engine. The valve control module selectively adjusts a valve position of an exhaust valve that restricts an exhaust flow of the engine based on the desired exhaust back pressure. The exhaust valve may include a valve body, a throttle plate, and an annular protrusion coupled to an inner surface of the valve body and protruding towards the throttle plate. The annular protrusion may abut a side of the throttle plate and may restrict fluid flow through an annular space between the throttle plate and the inner surface when the throttle plate is positioned in a rotational position transverse to a direction of fluid flow. A related method is also provided.
    Type: Application
    Filed: May 7, 2010
    Publication date: November 10, 2011
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Timothy J. Johnson, Kevin C. Wong, Mark D. Finkel, Steven M. Hubble, Roger Bennett, Richard W. Gushman, Kim Bloxsom, Joshua J. Ksiazkiewicz