Patents by Inventor Michael J. Sitar

Michael J. Sitar 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).

  • Patent number: 8640458
    Abstract: A method of controlling an engine includes manipulating a wastegate to maintain the operation of the turbocharger within an optimum operating range. A combustion air bypass valve is manipulated between an open position and a closed position to create a negative pressure differential across a supercharger. The supercharger is sequentially disposed in-line before the turbocharger. The negative pressure differential is converted into a torque by the supercharger and transmitted from the supercharger back to the engine to increase the operating efficiency of the engine.
    Type: Grant
    Filed: October 28, 2009
    Date of Patent: February 4, 2014
    Assignee: Eaton Corporation
    Inventors: Christopher Suhocki, Michael J. Sitar
  • Publication number: 20110094480
    Abstract: A method of controlling an engine includes manipulating a wastegate to maintain the operation of the turbocharger within an optimum operating range. A combustion air bypass valve is manipulated between an open position and a closed position to create a negative pressure differential across a supercharger. The supercharger is sequentially disposed in-line before the turbocharger. The negative pressure differential is converted into a torque by the supercharger and transmitted from the supercharger back to the engine to increase the operating efficiency of the engine.
    Type: Application
    Filed: October 28, 2009
    Publication date: April 28, 2011
    Applicant: Eaton Corporation
    Inventors: Christopher Suhocki, Michael J. Sitar
  • Patent number: 6102016
    Abstract: An exhaust gas recirculation system (11) for an internal combustion engine, including a valve (25) having a closed position (FIG. 2) blocking flow of exhaust gas, the valve being biased by gas pressure in the exhaust gas passage (E) toward a closed position (FIG. 2). The system includes an electric motor (51) having an input gear (55) and a gear train (57,59) driving a sector gear (73). A linkage member (93) has its ends (91,95) connected to the sector gear (73) and the valve stem (29), respectively. The sector gear and the linkage member are configured such that, as the valve begins to open against exhaust gas pressure, the movement of the valve stem is a relatively higher force, and at a relatively lower speed. As the valve moves toward a fully open position (FIG. 7), the movement of the valve stem is at a relatively lower force, but at a relatively higher speed.
    Type: Grant
    Filed: February 12, 1999
    Date of Patent: August 15, 2000
    Assignee: Eaton Corporation
    Inventors: Michael J. Sitar, David W. Deppe, Bill D. Wood