Patents by Inventor David Barbe

David Barbe 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: 7493762
    Abstract: A system for a diesel engine having an intake manifold and an exhaust manifold comprises a turbocharger between the intake and exhaust manifolds of the engine, a low pressure exhaust gas recirculation system, and a high pressure exhaust gas recirculation system. Further, the system includes a controller for coordinating adjustment of exhaust gas recirculation valves and throttles in the system to compensate for interaction between the high and low pressure exhaust gas recirculation systems.
    Type: Grant
    Filed: December 19, 2006
    Date of Patent: February 24, 2009
    Assignee: Ford Global Technologies, LLC
    Inventors: David Barbe, Michiel J. van Nieuwstadt, Devesh Upadhyay
  • Patent number: 7380400
    Abstract: A system for a diesel engine having an intake manifold and an exhaust manifold is described. The system may include both a high pressure and low pressure exhaust gas recirculation system, as well as a turbocharger. Further, in one example, the system may include two mass airflow sensors appropriately placed to enable improved control of both the high and low pressure exhaust gas recirculation systems.
    Type: Grant
    Filed: October 6, 2005
    Date of Patent: June 3, 2008
    Assignee: Ford Global Technologies, LLC
    Inventors: David Barbe, Michiel J. van Nieuwstadt
  • Patent number: 7367188
    Abstract: A system for a diesel engine having an intake manifold and an exhaust manifold, comprises a turbocharger between the intake and exhaust manifolds; a low pressure exhaust gas recirculation system having a first valve coupled thereto for regulating flow; a high pressure exhaust gas recirculation system having a second valve coupled thereto for regulating flow; a first mass airflow sensor coupled in the engine intake manifold; and a control system configured to diagnose the degradation of the first mass airflow sensor.
    Type: Grant
    Filed: July 28, 2006
    Date of Patent: May 6, 2008
    Assignee: Ford Global Technologies, LLC
    Inventors: David Barbe, Michiel J. van Nieuwstadt, Devesh Upadhyay
  • Publication number: 20080022677
    Abstract: A system for a diesel engine having an intake manifold and an exhaust manifold, comprises a turbocharger between the intake and exhaust manifolds of the engine; a low pressure exhaust gas recirculation system with a first end coupled to the exhaust manifold downstream of the turbocharger and a second end couple to the intake manifold upstream of the turbocharger, said low pressure exhaust gas recirculation having a first valve coupled thereto for regulating flow; a high pressure exhaust gas recirculation system with a first end coupled to the exhaust manifold upstream of the turbocharger and a second end coupled to the intake manifold downstream of the turbocharger, said high pressure exhaust gas recirculation having a second valve coupled thereto for regulating flow; a first mass airflow sensor coupled in the engine intake manifold upstream of an inlet of said second end of said low pressure exhaust gas recirculation system; and a control system configured to diagnose the degradation of said first mass airfl
    Type: Application
    Filed: July 28, 2006
    Publication date: January 31, 2008
    Inventors: David Barbe, Michiel J. van Nieuwstadt, Devesh Upadhyay
  • Publication number: 20070119172
    Abstract: A system for a diesel engine having an intake manifold and an exhaust manifold, comprises a turbocharger between the intake and exhaust manifolds of the engine; a low pressure exhaust gas recirculation system with a first end coupled to the exhaust manifold downstream of the turbocharger and a second end couple to the intake manifold upstream of the turbocharger, said low pressure exhaust gas recirculation having a first valve coupled thereto for regulating flow; a high pressure exhaust gas recirculation system with a first end coupled to the exhaust manifold upstream of the turbocharger and a second end coupled to the intake manifold downstream of the turbocharger, said high pressure exhaust gas recirculation having a second valve coupled thereto for regulating flow; a first mass airflow sensor coupled in the engine intake manifold upstream of an inlet of said second end of said low pressure exhaust gas recirculation system; and a control system configured to diagnose the degradation of said first mass airfl
    Type: Application
    Filed: December 19, 2006
    Publication date: May 31, 2007
    Inventors: David Barbe, Michiel van Nieuwstadt, Devesh Upadhyay
  • Publication number: 20070079614
    Abstract: A system for a diesel engine having an intake manifold and an exhaust manifold, comprising a turbocharger coupled between the intake and exhaust manifolds of the engine; a low pressure exhaust gas recirculation system with a first end coupled to the exhaust manifold downstream of the turbocharger and a second end coupled to the intake manifold upstream of the turbocharger, said low pressure exhaust gas recirculation having a first valve coupled thereto for regulating flow; a high pressure exhaust gas recirculation system with a first end coupled to the exhaust manifold upstream of the turbocharger and a second end coupled to the intake manifold downstream of the turbocharger, said high pressure exhaust gas recirculation having a second valve coupled thereto for regulating flow; a first mass airflow sensor coupled in the engine intake manifold upstream of said second end of said low pressure exhaust gas recirculation system; a second mass airflow sensor coupled in the engine intake manifold downstream of said
    Type: Application
    Filed: October 6, 2005
    Publication date: April 12, 2007
    Inventors: David Barbe, Michiel van Nieuwstadt