Patents by Inventor Don Klemen

Don Klemen 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).

  • Fluid cooling of grease-packed bearings
    Patent number: 11336151
    Abstract: An electric starter-generator is described. The generator may comprise a rotor, a housing, two bearings, a stator, and a cooling-fluid flowpath. The cooling-fluid flowpath may comprise a cooling-fluid entrance and exit, and a cooling-fluid channel in fluid communication with the entrance and exit. At least a portion of the channel may be defined by a fluid-tight coupling of the housing and a sleeve radially surrounding the outer race of either the bearings. The portion may form an annulus about the axis. The portion may comprise a radially inner surface defined by the sleeve, a radially outer surface define by said housing, and two axial surfaces. The two axial surfaces may extend a distance from the radially inner to outer surfaces that is less than a distance from one of the two axial surfaces to the other of the two axial surfaces.
    Type: Grant
    Filed: May 6, 2019
    Date of Patent: May 17, 2022
    Assignees: ROLLS-ROYCE PLC, ROLLS-ROYCE CORPORATION
    Inventors: David Scothern, Mark Boden, Don Klemen, William Williamson, Brian Maners
  • FLUID COOLING OF GREASE-PACKED BEARINGS
    Publication number: 20200358337
    Abstract: An electric starter-generator is described. The generator may comprise a rotor, a housing, two bearings, a stator, and a cooling-fluid flowpath. The cooling-fluid flowpath may comprise a cooling-fluid entrance and exit, and a cooling-fluid channel in fluid communication with the entrance and exit. At least a portion of the channel may be defined by a fluid-tight coupling of the housing and a sleeve radially surrounding the outer race of either the bearings. The portion may form an annulus about the axis. The portion may comprise a radially inner surface defined by the sleeve, a radially outer surface define by said housing, and two axial surfaces. The two axial surfaces may extend a distance from the radially inner to outer surfaces that is less than a distance from one of the two axial surfaces to the other of the two axial surfaces.
    Type: Application
    Filed: May 6, 2019
    Publication date: November 12, 2020
    Inventors: David Scothern, Mark Boden, Don Klemen, William Williamson, Brian Maners