Patents by Inventor Rous S. Karlson

Rous S. Karlson 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).

  • Rate control in accumulator type fuel injectors
    Patent number: 4948049
    Abstract: The invention provides means for controlling the rate of fuel injection of an accumulator injector of the type employing a pressure amplifying piston assembly. In one form of the invention, the injection rate is controlled by restricting the pressure decay in the amplifier chamber. In another form of the invention, means are provided for delaying the full opening of the injector valve needle after an initial valve opening.
    Type: Grant
    Filed: February 24, 1989
    Date of Patent: August 14, 1990
    Assignee: AIL Corporation
    Inventors: Eric S. Brisbon, John B. Cavanaugh, Jeffrey P. DiCarlo, Rous S. Karlson