Patents by Inventor Xingun Gui

Xingun Gui 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).

  • Piston having combustion chamber defined in the crown
    Patent number: 6536404
    Abstract: A combustion chamber assembly for use in a diesel engine includes a combustion chamber being defined in a crown of a piston, the combustion chamber having a center portion being elevated relative to a bottom plane of the combustion chamber, the center portion being defined in part by a portion of a convex sphere, the sphere having a radius and an origin, the origin of the radius lying on a piston central axis and the combustion chamber further having an outwardly radially disposed bottom margin, the bottom margin being defined in part by a portion of a concave sphere, the sphere having a radius, the origin of the radius lying on the piston central axis and being greater than the center portion radius. The combustion chamber has a plurality of curved surfaces having smooth transitions between adjacent smooth surfaces, the smooth surfaces including the spherical center portion and the spherical bottom margin in combination with an annular sidewall surface.
    Type: Grant
    Filed: July 23, 2001
    Date of Patent: March 25, 2003
    Assignee: International Engine Intellectual Property Company, L.L.C.
    Inventors: Zhengbai Liu, Xingun Gui
  • Piston having combustion chamber defined in the crown
    Publication number: 20030015167
    Abstract: A combustion chamber assembly for use in a diesel engine includes a combustion chamber being defined in a crown of a piston, the combustion chamber having a center portion being elevated relative to a bottom plane of the combustion chamber, the center portion being defined in part by a portion of a convex sphere, the sphere having a radius and an origin, the origin of the radius lying on a piston central axis and the combustion chamber further having an outwardly radially disposed bottom margin, the bottom margin being defined in part by a portion of a concave sphere, the sphere having a radius, the origin of the radius lying on the piston central axis and being greater than the center portion radius. The combustion chamber has a plurality of curved surfaces having smooth transitions between adjacent smooth surfaces, the smooth surfaces including the spherical center portion and the spherical bottom margin in combination with an annular sidewall surface.
    Type: Application
    Filed: July 23, 2001
    Publication date: January 23, 2003
    Inventors: Zhengbai Liu, Xingun Gui