Patents Assigned to WOODWARD GOVERNOR, INC.
  • Publication number: 20120125279
    Abstract: A pre-chamber spark plug that includes a shell, and an end cap attached to the shell. Additionally, the pre-chamber spark plug includes an insulator disposed within the shell. In a particular embodiment, a center electrode has a first portion surrounded by the insulator, and a second portion that extends from the insulator into a pre-chamber. The pre-chamber defined by the shell and end cap. In a further embodiment, a ground electrode is attached to the shell. In particular embodiments, the ground electrode is tubular in shape and includes an inner spark surface ring spaced in surrounding relation to the center electrode to create a spark gap, an outer ring attached to the shell, and a plurality of rounded spokes connecting the inner and outer rings. In a particular embodiment, the ground and center electrodes accommodate attachment of precious metal alloys to increase electrode surface life.
    Type: Application
    Filed: March 8, 2011
    Publication date: May 24, 2012
    Applicant: WOODWARD GOVERNOR, INC.
    Inventors: Gregory James Hampson, Domenico Chiera