Patents by Inventor Wayne Eberhard

Wayne Eberhard 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).

  • Condensation protection AECD for an internal combustion engine employing cooled EGR
    Patent number: 6725847
    Abstract: A system for protecting an internal combustion engine employing cooled recirculated exhaust gas (EGR) from excessive condensation includes an auxiliary emission control device (AECD) operable to determine when engine operating conditions correspond to a condensing condition resulting in condensation of water at the outlet of the EGR cooler and/or within the intake manifold or intake conduit of the engine. When such conditions occur, the AECD is operable to close the EGR valve and monitor engine operating conditions. When engine operating conditions no longer correspond to the condensing condition, control of the EGR valve is restored to an air handling system associated with the engine.
    Type: Grant
    Filed: April 10, 2002
    Date of Patent: April 27, 2004
    Assignee: Cummins, Inc.
    Inventors: George Brunemann, Larry J. Brackney, Thomas A. Dollmeyer, B. Jerry Song, Michael G. Barbieri, Matthew M. Lipinski, Wayne Eberhard
  • Condensation protection AECD for an internal combustion engine employing cooled EGR
    Publication number: 20030192516
    Abstract: A system for protecting an internal combustion engine employing cooled recirculated exhaust gas (EGR) from excessive condensation includes an auxiliary emission control device (AECD) operable to determine when engine operating conditions correspond to a condensing condition resulting in condensation of water at the outlet of the EGR cooler and/or within the intake manifold or intake conduit of the engine. When such conditions occur, the AECD is operable to close the EGR valve and monitor engine operating conditions. When engine operating conditions no longer correspond to the condensing condition, control of the EGR valve is restored to an air handling system associated with the engine.
    Type: Application
    Filed: April 10, 2002
    Publication date: October 16, 2003
    Inventors: George Brunemann, Larry J. Brackney, Thomas A. Dollmeyer, B. Jerry Song, Michael G. Barbieri, Matthew M. Lipinski, Wayne Eberhard