Patents by Inventor Vianney Paul Rabhi

Vianney Paul Rabhi 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).

  • Device for varying a piston engine effective volumetric displacement and/or volumetric ratio of during its operation
    Patent number: 6354252
    Abstract: A device for varying an effective volumetric displacement and/or an effective volumetric ratio of an engine which comprises a piston and a cylinder, the device comprising a first device for controlling the effective volumetric ratio of the engine by modifying a starting point of a stroke of the piston with respect to the cylinder, and a second device for controlling the effective volumetric displacement of the engine by discharging into an inlet pipe excess gases let into the cylinder of the engine.
    Type: Grant
    Filed: November 5, 1999
    Date of Patent: March 12, 2002
    Inventor: Vianney Paul Rabhi