Patents by Inventor Prasad Punna

Prasad Punna 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).

  • Clearance control for a turbine
    Patent number: 8939709
    Abstract: A system for operating a turbine includes a rotating component and a non-rotating component separated from the rotating component by a clearance. A first actuator is connected to the non-rotating component, and the first actuator comprises a shape-memory alloy. A method for operating a turbine includes sensing a parameter reflective of a clearance between a non-rotating component and a rotating component and generating a parameter signal reflective of the clearance. The method further includes generating a control signal to at least one actuator based on the parameter signal and moving at least a portion of the non-rotating component relative to the rotating component to change the clearance.
    Type: Grant
    Filed: July 18, 2011
    Date of Patent: January 27, 2015
    Assignee: General Electric Company
    Inventors: Biju Nanukuttan, Rakesh Adoor, Hariharan Sundaram, James Adaickalasamy, Prasad Punna
  • SYSTEM AND METHOD FOR OPERATING A TURBINE
    Publication number: 20130022442
    Abstract: A system for operating a turbine includes a rotating component and a non-rotating component separated from the rotating component by a clearance. A first actuator is connected to the non-rotating component, and the first actuator comprises a shape-memory alloy. A method for operating a turbine includes sensing a parameter reflective of a clearance between a non-rotating component and a rotating component and generating a parameter signal reflective of the clearance. The method further includes generating a control signal to at least one actuator based on the parameter signal and moving at least a portion of the non-rotating component relative to the rotating component to change the clearance.
    Type: Application
    Filed: July 18, 2011
    Publication date: January 24, 2013
    Applicant: General Electric Company
    Inventors: Biju Nanukuttan, Rakesh Adoor, Hariharan Sundaram, James Adaickalasamy, Prasad Punna