Patents by Inventor Jacob W. Harral

Jacob W. Harral 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).

  • Gas turbine engine test stand
    Patent number: 10788398
    Abstract: A gas turbine engine test assembly includes a test apparatus having a rotor and stator and a bearing assembly having a fluid circuit providing an adjustable fluid pressure interface between the rotor and stator.
    Type: Grant
    Filed: December 23, 2016
    Date of Patent: September 29, 2020
    Assignee: Rolls-Royce Corporation
    Inventor: Jacob W. Harral
  • Engine sump with air separation features
    Patent number: 10563580
    Abstract: A sump assembly for use in a gas turbine engine includes a housing and a shaft assembly. The housing is arranged about a central axis of the sump assembly to define a cavity configured to house oil and high-pressure gasses. The shaft assembly is mounted to rotate about the central axis and to direct the high-pressure gasses into the housing.
    Type: Grant
    Filed: May 16, 2017
    Date of Patent: February 18, 2020
    Assignee: Rolls-Royce Corporation
    Inventors: Jacob W. Harral, Derek Mitchell, Phillip Burnside
  • Shaft coupling seal assembly
    Patent number: 10344862
    Abstract: A sealing element for a shaft coupling is disclosed. The sealing element may include an annular seal body and a plurality of projections circumferentially spaced around the seal body. One or more of the plurality of projections may include at least one of an axial component extending longitudinally in an axial direction from the seal body and/or a radial component extending radially inwards from the seal body towards the center axis. The sealing element is configured to retrofit into existing standard o-ring grooves and provides optimal lubrication, for example in a spline joint, by keeping the spline joint contact area submerged in lubricant and includes heat and debris removal with lubricant flow-through.
    Type: Grant
    Filed: January 7, 2016
    Date of Patent: July 9, 2019
    Assignee: Rolls-Royce Corporation
    Inventor: Jacob W. Harral
  • ENGINE SUMP WITH AIR SEPARATION FEATURES
    Publication number: 20180334960
    Abstract: A sump assembly for use in a gas turbine engine includes a housing and a shaft assembly. The housing is arranged about a central axis of the sump assembly to define a cavity configured to house oil and high-pressure gasses. The shaft assembly is mounted to rotate about the central axis and to direct the high-pressure gasses into the housing.
    Type: Application
    Filed: May 16, 2017
    Publication date: November 22, 2018
    Inventors: Jacob W. Harral, Derek Mitchell, Phillip Burnside
  • GAS TURBINE ENGINE TEST STAND
    Publication number: 20180179913
    Abstract: A gas turbine engine test assembly includes a test apparatus having a rotor and stator and a bearing assembly having a fluid circuit providing an adjustable fluid pressure interface between the rotor and stator.
    Type: Application
    Filed: December 23, 2016
    Publication date: June 28, 2018
    Inventor: Jacob W. Harral
  • SHAFT COUPLING SEAL ASSEMBLY
    Publication number: 20160201801
    Abstract: A sealing element for a shaft coupling is disclosed. The sealing element may include an annular seal body and a plurality of projections circumferentially spaced around the seal body. One or more of the plurality of projections may include at least one of an axial component extending longitudinally in an axial direction from the seal body and/or a radial component extending radially inwards from the seal body towards the center axis. The sealing element is configured to retrofit into existing standard o-ring grooves and provides optimal lubrication, for example in a spline joint, by keeping the spline joint contact area submerged in lubricant and includes heat and debris removal with lubricant flow-through.
    Type: Application
    Filed: January 7, 2016
    Publication date: July 14, 2016
    Applicant: Rolls-Royce Corporation
    Inventor: Jacob W. Harral