Patents by Inventor Werner A. Schelling

Werner A. Schelling 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).

  • Secondary filter assembly for fuel injector
    Patent number: 6446885
    Abstract: A fuel injector including a jacket, a valve seat, and a needle valve apparatus mounted within the jacket and engagable with the valve seat. The needle valve apparatus includes a plurality of holes for filtering fuel flowing through the injector. Each of the holes has a diameter sized to prevent passage therethrough of particles having widths of approximately 0.050 millimeters and larger. In one aspect of the invention, the needle valve apparatus includes a needle valve assembly having at least one transverse aperture through which fuel can flow and a generally tubular filter surrounding at least a portion of the needle valve assembly. The plurality of holes for filtering fuel is formed in the tubular filter. In another aspect, the needle valve apparatus includes a needle valve assembly having a needle valve with a wall that includes the plurality of holes.
    Type: Grant
    Filed: January 16, 2001
    Date of Patent: September 10, 2002
    Assignee: Robert Bosch Corporation
    Inventors: Dewey M. Sims, Jr., Werner A. Schelling
  • SECONDARY FILTER ASSEMBLY FOR FUEL INJECTOR
    Publication number: 20020092934
    Abstract: A fuel injector including a jacket, a valve seat, and a needle valve apparatus mounted within the jacket and engagable with the valve seat. The needle valve apparatus includes a plurality of holes for filtering fuel flowing through the injector. Each of the holes has a diameter sized to prevent passage therethrough of particles having widths of approximately 0.050 millimeters and larger. In one aspect of the invention, the needle valve apparatus includes a needle valve assembly having at least one transverse aperture through which fuel can flow and a generally tubular filter surrounding at least a portion of the needle valve assembly. The plurality of holes for filtering fuel is formed in the tubular filter. In another aspect, the needle valve apparatus includes a needle valve assembly having a needle valve with a wall that includes the plurality of holes.
    Type: Application
    Filed: January 16, 2001
    Publication date: July 18, 2002
    Inventors: Dewey M. Sims, Werner A. Schelling