Patents by Inventor Ashok Reddy Gitta

Ashok Reddy Gitta 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).

  • Method for modulating a turbine cooling supply for gas turbine applications
    Patent number: 11795877
    Abstract: A method of modulating a cooling supply in a gas turbine engine includes providing the engine comprising a compressor section and a turbine section and including a cooling flow circuit, the cooling flow circuit supplying a cooling air flow from a compressor cavity in the compressor section to a blade ring cavity in the turbine section, wherein the cooling flow circuit includes a main line with a full capacity valve, measuring a first pressure in the blade ring cavity, measuring a second pressure in the compressor cavity, adjusting, by a control system, the opening of the full capacity valve to control the cooling air flow through the main line in order to maintain a target pressure ratio, wherein the pressure ratio defined as a ratio of the first pressure to the second pressure. The method is performed in an ambient temperature operating range of the engine.
    Type: Grant
    Filed: March 24, 2020
    Date of Patent: October 24, 2023
    Assignee: SIEMENS ENERGY, INC.
    Inventors: Ashok Reddy Gitta, Damien G. Teehan, Yan Yin, Chirag Patel, John T. Fetherolf, Jr.
  • METHOD FOR MODULATING A TURBINE COOLING SUPPLY FOR GAS TURBINE APPLICATIONS
    Publication number: 20230122896
    Abstract: A method of modulating a cooling supply in a gas turbine engine includes providing the engine comprising a compressor section and a turbine section and including a cooling flow circuit, the cooling flow circuit supplying a cooling air flow from a compressor cavity in the compressor section to a blade ring cavity in the turbine section, wherein the cooling flow circuit includes a main line with a full capacity valve, measuring a first pressure in the blade ring cavity, measuring a second pressure in the compressor cavity, adjusting, by a control system, the opening of the full capacity valve to control the cooling air flow through the main line in order to maintain a target pressure ratio, wherein the pressure ratio defined as a ratio of the first pressure to the second pressure. The method is performed in an ambient temperature operating range of the engine.
    Type: Application
    Filed: March 24, 2020
    Publication date: April 20, 2023
    Inventors: Ashok Reddy Gitta, Damien G. Teehan, Yan Yin, Chirag Patel, John T. Fetherolf, Jr.