Patents by Inventor Gregory L. Helton

Gregory L. Helton 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).

  • Method of forming a fuel feed passage in the feed arm of a fuel injector
    Patent number: 7043922
    Abstract: A method is disclosed for forming a fuel feed passage in the feed arm of a fuel injector. The method includes the steps of providing a fuel feed passage in the feed arm of a fuel injector, whereby the fuel feed passage has an initial cross-sectional flow area that corresponds with an initial fuel flow velocity, an initial convection heat transfer coefficient and initial localized wetted wall temperatures for the fuel feed passage, for a given fuel flow rate and fuel temperature. The method further includes decreasing the initial cross-sectional flow area of the fuel feed passage so as to increase the fuel flow velocity and the convection heat transfer coefficient for the fuel feed passage, while lowering the localized wetted wall temperatures for the fuel feed passage, without varying the given fuel flow rate and fuel temperature.
    Type: Grant
    Filed: January 20, 2004
    Date of Patent: May 16, 2006
    Assignee: Delavan Inc
    Inventors: Kevin E. Thompson, Gregory L. Helton