Patents by Inventor Joseph Michael Grandas

Joseph Michael Grandas 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 control system
    Patent number: 7963277
    Abstract: An exhaust gas recirculation system has an EGR valve disposed in an EGR duct connecting an engine intake and exhaust. A diaphragm of said EGR valve is actuated via vacuum from the engine intake, the application of the vacuum is controlled via an electronic valve regulator (EVR). The EVR is provided a fixed signal to cause it to be fully open when it is determined that the engine is about to encounter a condition in which there is insufficient vacuum to open the EGR valve. The EVR is provided a variable signal during other operating conditions in which there is sufficient vacuum to open the EGR valve.
    Type: Grant
    Filed: June 26, 2008
    Date of Patent: June 21, 2011
    Assignee: Ford Global Technologies, LLC
    Inventors: Freeman Carter Gates, Gitanjli McRoy, Sassan Farahmand, Joseph Michael Grandas
  • Exhaust Gas Recirculation Control System
    Publication number: 20090320811
    Abstract: An exhaust gas recirculation system has an EGR valve disposed in an EGR duct connecting an engine intake and exhaust. A diaphragm of said EGR valve is actuated via vacuum from the engine intake, the application of the vacuum is controlled via an electronic valve regulator (EVR). The EVR is provided a fixed signal to cause it to be fully open when it is determined that the engine is about to encounter a condition in which there is insufficient vacuum to open the EGR valve. The EVR is provided a variable signal during other operating conditions in which there is sufficient vacuum to open the EGR valve.
    Type: Application
    Filed: June 26, 2008
    Publication date: December 31, 2009
    Inventors: Freeman Carter Gates, Gitanjli McRoy, Sassan Farahmand, Joseph Michael Grandas