Patents by Inventor Francis Cogneville

Francis Cogneville 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).

  • Control process for an internal combustion engine fuel pump
    Patent number: 5572964
    Abstract: A control process for a fuel pump installed in a fuel circuit of a motor vehicle internal combustion engine. The fuel pump is of the electric drive type and is controlled by the engine control system. The fuel pump is actuated in advance of the operation of the starter for a predetermined time period when the electronic engine control system is switched on. The duration of the predetermined delay time period is adjusted as a function of predetermined criteria such as whether the engine has been previously operated and if a manual signal such as the accelerator pedal to a full throttle position has been given by an operator.
    Type: Grant
    Filed: October 31, 1994
    Date of Patent: November 12, 1996
    Assignee: Regie Nationale des Usines Renault
    Inventors: Francis Cogneville, Gerard Saint-Leger, Pierre Vaillard