Patents by Inventor Andrew Lammas

Andrew Lammas 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).

  • HIGH PRESSURE TURBINE DISK HUB WITH REDUCED AXIAL STRESS AND METHOD
    Publication number: 20070140864
    Abstract: A gas turbine engine disk that includes a centrally disposed disk hub having an integrally-formed, radially outwardly extending web terminating at an outer end. The disk hub has a radially-displaced annular hub surface exposed to high pressure, high temperature discharge gases during engine operation. The radially-displaced annular hub surface acts as an axial free surface mitigating the formation undesirable axial stress in the disk hub.
    Type: Application
    Filed: December 20, 2005
    Publication date: June 21, 2007
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Craig Higgins, Charles England, Joeseph Kulesa, Andrew Lammas
  • Methods and apparatus for operating gas turbine engines
    Publication number: 20070053770
    Abstract: A method of assembling a gas turbine engine that includes providing a rotor assembly including a rotor shaft, an air duct, and a rotor disk that includes a mounting arm, wherein the mounting arm extends radially inward from the rotor disk towards the rotor shaft and coupling a rotor impeller assembly to the mounting arm, wherein the rotor impeller assembly includes a carrier and a plurality of bleed tubes that each extend outwardly from the carrier and are configured to receive bleed air.
    Type: Application
    Filed: September 8, 2005
    Publication date: March 8, 2007
    Inventors: Andrew Lammas, Steven Ballman, Daniel Wines, David Bedel, Sean McGowan