Patents by Inventor Seerangan Murugesan

Seerangan Murugesan 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).

  • Blade/disk dovetail backcut for blade/disk stress reduction (6FA+E, stage2)
    Patent number: 7476085
    Abstract: Blade load path on a gas turbine disk can be diverted to provide a significant disk fatigue life benefit. A plurality of gas turbine blades are attachable to a gas turbine disk, where each of the gas turbine blades includes a blade dovetail engageable in a correspondingly-shaped dovetail slot in the gas turbine disk. In order to reduce gas turbine disk stress, an optimal material removal area is defined according to blade and/or disk geometry to maximize a balance between stress reduction on the gas turbine disk, a useful life of the gas turbine blade, and maintaining or improving the aeromechanical behavior of the gas turbine blade. Removing material from the material removal area effects the maximized balance.
    Type: Grant
    Filed: June 28, 2006
    Date of Patent: January 13, 2009
    Assignee: General Electric Company
    Inventors: Patrick J. Mohr, Emilio Fernandez, Anil B. Rajanna, Seerangan Murugesan, Kamlesh Dewangan
  • BLADE/DISK DOVETAIL BACKCUT FOR BLADE/DISK STRESS REDUCTION (6FA+E, STAGE2)
    Publication number: 20080260535
    Abstract: Blade load path on a gas turbine disk can be diverted to provide a significant disk fatigue life benefit. A plurality of gas turbine blades are attachable to a gas turbine disk, where each of the gas turbine blades includes a blade dovetail engageable in a correspondingly-shaped dovetail slot in the gas turbine disk. In order to reduce gas turbine disk stress, an optimal material removal area is defined according to blade and/or disk geometry to maximize a balance between stress reduction on the gas turbine disk, a useful life of the gas turbine blade, and maintaining or improving the aeromechanical behavior of the gas turbine blade. Removing material from the material removal area effects the maximized balance.
    Type: Application
    Filed: June 28, 2006
    Publication date: October 23, 2008
    Applicant: General Electric Company
    Inventors: Patrick J. Mohr, Emilio Fernandez, Anil B. Rajanna, Seerangan Murugesan, Kamlesh Dewangan