Patents by Inventor Alistair S. Teasdale

Alistair S. Teasdale 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 system fault detector
    Patent number: 5190017
    Abstract: The method for determining a fault in an exhaust gas recirculation system includes comparing the measured exhaust gas flow of the EGR system to an expected exhaust gas recirculation flow. If the two are not the same the time period that the expected exhaust gas recirculation flow deviates from the measured exhaust gas recirculation flow by a calibrated EGR flow amount is determined. A fault condition in the EGR system is indicated if the duration of the deviation exceeds a predetermined amount of time.
    Type: Grant
    Filed: May 28, 1992
    Date of Patent: March 2, 1993
    Assignee: Ford Motor Company
    Inventors: Michael J. Cullen, Rogelio G. Samson, Alistair S. Teasdale, Richard L. Wanat