Patents by Inventor Scott Coulier

Scott Coulier 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 bowl and engine using same
    Patent number: 9228531
    Abstract: A piston for balancing combustion efficiency and smoke generation with NOx production includes a combustion face forming a combustion bowl having a compound curvature increased in sharpness in a radially outward direction. An outer bowl surface defines a large radius of curvature adjacent an inner bowl surface, and a medium radius of curvature adjacent a cylindrical wall surface. The inner bowl, outer bowl, and wall surfaces together contour the combustion bowl, such that a diameter of the combustion bowl is about 124 mm so as to establish a bowl to bore ratio of about 0.71 in a direct injection compression ignition engine with a compression ratio of about 15:1 to 17:1.
    Type: Grant
    Filed: May 13, 2013
    Date of Patent: January 5, 2016
    Assignee: Caterpillar Inc.
    Inventors: Aaron Ness, Scott Coulier, Thomas Kammerdiener, Jonathan Kilkenny
  • PISTON HAVING COMBUSTION BOWL AND ENGINE USING SAME
    Publication number: 20140331961
    Abstract: A piston for balancing combustion efficiency and smoke generation with NOx production includes a combustion face forming a combustion bowl having a compound curvature increased in sharpness in a radially outward direction. An outer bowl surface defines a large radius of curvature adjacent an inner bowl surface, and a medium radius of curvature adjacent a cylindrical wall surface. The inner bowl, outer bowl, and wall surfaces together contour the combustion bowl, such that a diameter of the combustion bowl is about 124 mm so as to establish a bowl to bore ratio of about 0.71 in a direct injection compression ignition engine with a compression ratio of about 15:1 to 17:1.
    Type: Application
    Filed: May 13, 2013
    Publication date: November 13, 2014
    Applicant: Caterpillar Inc.
    Inventors: Aaron Ness, Scott Coulier, Thomas Kammerdiener, Jonathan Kilkenny