Patents by Inventor James Hugo Martyn

James Hugo Martyn 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).

  • Laminar flow of piston cooling jets
    Patent number: 9926829
    Abstract: A nozzle of a piston cooling system includes a flow path defined by a structure of the nozzle and configured to receive a cooling fluid, a first flow opening fluidly coupled with the flow path and extending through the structure of the nozzle, and a second flow opening fluidly coupled with the flow path and extending through the structure of the nozzle. The first flow opening and the second flow opening are sized to enable laminar flow of corresponding first and second jets of the cooling fluid discharged through the first and second flow openings, respectively.
    Type: Grant
    Filed: October 20, 2015
    Date of Patent: March 27, 2018
    Assignee: General Electric Company
    Inventors: Vekatesh Raman, James Hugo Martyn
  • System and method for camshaft vibration control
    Patent number: 9810105
    Abstract: A system includes a camshaft disposed along an axis from a drive end to a opposite end, and the camshaft includes a plurality of journals configured to support the camshaft and is spaced along the axis. The camshaft includes a plurality of cams spaced along the axis, and is disposed along the camshaft in sets, where each set is disposed between a respective pair of journals of the plurality of journals. The camshaft includes a plurality of mass portions, where each mass portion is disposed between a set of cams and a respective journal. The plurality of mass portions is disposed along the camshaft such that a center of mass of the plurality of mass portions is nearer to the drive end than to the opposite end, and the plurality of mass portions is configured to increase a natural frequency of the shaft.
    Type: Grant
    Filed: October 13, 2015
    Date of Patent: November 7, 2017
    Assignee: General Electric Company
    Inventors: James Hugo Martyn, Christian Rauch, Sandro Rivellini
  • LAMINAR FLOW OF PISTON COOLING JETS
    Publication number: 20170107890
    Abstract: A nozzle of a piston cooling system includes a flow path defined by a structure of the nozzle and configured to receive a cooling fluid, a first flow opening fluidly coupled with the flow path and extending through the structure of the nozzle, and a second flow opening fluidly coupled with the flow path and extending through the structure of the nozzle. The first flow opening and the second flow opening are sized to enable laminar flow of corresponding first and second jets of the cooling fluid discharged through the first and second flow openings, respectively.
    Type: Application
    Filed: October 20, 2015
    Publication date: April 20, 2017
    Inventors: Venkatesh Raman, James Hugo Martyn
  • SYSTEM AND METHOD FOR CAMSHAFT VIBRATION CONTROL
    Publication number: 20170101902
    Abstract: A system includes a camshaft disposed along an axis from a drive end to a opposite end, and the camshaft includes a plurality of journals configured to support the camshaft and is spaced along the axis. The camshaft includes a plurality of cams spaced along the axis, and is disposed along the camshaft in sets, where each set is disposed between a respective pair of journals of the plurality of journals. The camshaft includes a plurality of mass portions, where each mass portion is disposed between a set of cams and a respective journal. The plurality of mass portions is disposed along the camshaft such that a center of mass of the plurality of mass portions is nearer to the drive end than to the opposite end, and the plurality of mass portions is configured to increase a natural frequency of the shaft.
    Type: Application
    Filed: October 13, 2015
    Publication date: April 13, 2017
    Inventors: James Hugo Martyn, Christian Rauch, Sandro Rivellini