Patents by Inventor Paul Jon Schweiger

Paul Jon Schweiger 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).

  • Low compression natural gas engine piston bowl for improved combustion stability
    Patent number: 11519359
    Abstract: A piston may have an annular body including a crown portion defining a longitudinal axis, a radial direction perpendicular to the longitudinal axis, a plane containing the longitudinal axis and the radial direction, and a contoured combustion bowl. In the plane containing the longitudinal axis and the radial direction, the crown portion includes a radially outer squish surface, and a swirl pocket having a reentrant surface that extends axially downwardly and radially outwardly from the squish surface defining a tangent that forms a reentrant angle with the squish surface that ranges from 33.0 degrees to 37.0 degrees.
    Type: Grant
    Filed: April 4, 2022
    Date of Patent: December 6, 2022
    Assignee: Caterpillar Inc.
    Inventors: Srikanth Ravisankar, Paul Jon Schweiger