Patents by Inventor GEOFFREY NEIL AINSWORTH

GEOFFREY NEIL AINSWORTH 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 with anti-coking design features
    Patent number: 10774781
    Abstract: A steel piston with anti-coking design features is provided. The piston includes an upper crown portion and a lower crown portion forming an outer cooling gallery therebetween. The outer cooling gallery is substantially closed except for an oil inlet, oil outlet, and optional oil passage(s) to a central cooling gallery. According to one embodiment, at least one anti-coking insert is disposed in the outer cooling gallery and sized to prevent escaping through the oil inlet or the oil outlet. For example, the insert(s) can comprise a helical coil, a plurality of steel balls, coil springs, or chips formed of polymer with abrasive filler. Alternatively, an outer gallery floor to the outer cooling gallery includes a plurality of anti-coking openings disposed sequentially in decreasing spaced relation from one another, or anti-coking openings with varying lengths.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: September 15, 2020
    Assignee: Tenneco, Inc.
    Inventors: Miguel Azevedo, Warran Boyd Lineton, Geoffrey Neil Ainsworth
  • PISTON WITH ANTI-COKING DESIGN FEATURES
    Publication number: 20180209375
    Abstract: A steel piston with anti-coking design features is provided. The piston includes an upper crown portion and a lower crown portion forming an outer cooling gallery therebetween. The outer cooling gallery is substantially closed except for an oil inlet, oil outlet, and optional oil passage(s) to a central cooling gallery. According to one embodiment, at least one anti-coking insert is disposed in the outer cooling gallery and sized to prevent escaping through the oil inlet or the oil outlet. For example, the insert(s) can comprise a helical coil, a plurality of steel balls, coil springs, or chips formed of polymer with abrasive filler. Alternatively, an outer gallery floor to the outer cooling gallery includes a plurality of anti-coking openings disposed sequentially in decreasing spaced relation from one another, or anti-coking openings with varying lengths.
    Type: Application
    Filed: January 25, 2017
    Publication date: July 26, 2018
    Inventors: MIGUEL AZEVEDO, WARRAN BOYD LINETON, GEOFFREY NEIL AINSWORTH