Patents by Inventor Campo-Garraza Pedro

Campo-Garraza Pedro 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).

  • Premetered pump injector having constant injection pressure, and derivative system
    Patent number: 4471740
    Abstract: A pump injector sends a premetered quantity of fuel to a needle type injector of the type including a piston and a discharge chamber. The injector includes a compression piston mechanically controlled by cam or eccentric having any form. The compression piston compresses fuel within a compression chamber. An injection piston is activated exclusively by the pressure within the compression chamber, opposed by an opposing return spring. The injection piston in turn compresses the fuel in an injection chamber designed to feed the injector. A pressure regulator limits the pressure in the compression chamber to a high, preset value independent of the speed and load of the engine.
    Type: Grant
    Filed: October 6, 1982
    Date of Patent: September 18, 1984
    Assignee: Regie Nationale des Usines Renault
    Inventors: Jean-Pierre Jourde, Campo-Garraza Pedro