Patents by Inventor Bogdan R. Raica

Bogdan R. Raica 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 performance robust gas turbine exhaust with variable (adaptive) exhaust diffuser geometry
    Patent number: 10329945
    Abstract: An exhaust gas diffuser for a gas turbine engine whose inlet geometry can be selectively controlled to change the angular orientation of the diffuser at the location where the exhaust gas exits the last stage row of blades of the turbine section of the gas turbine engine. An end portion of the gas diffuser proximate the last stage row of blades can include one or more actuated sections that are independently controlled to change the angular orientation of the inlet geometry of the diffuser. In one embodiment, the angular orientation of the actuated sections is set at the manufacturing level for the service location of the engine. In another embodiment, the angular orientation of the actuated sections is selectively controlled based on the operating conditions of the engine. In another embodiment, the angular orientation of the actuated sections is controlled by pneumatic pressure from a compressor section of the engine.
    Type: Grant
    Filed: April 21, 2015
    Date of Patent: June 25, 2019
    Assignee: SIEMENS ENERGY, INC.
    Inventors: Anil L. Salunkhe, Bogdan R. Raica, Christian K. Funk
  • HIGH PERFORMANCE ROBUST GAS TURBINE EXHAUST WITH VARIABLE (ADAPTIVE) EXHAUST DIFFUSER GEOMETRY
    Publication number: 20160312649
    Abstract: An exhaust gas diffuser for a gas turbine engine whose inlet geometry can be selectively controlled to change the angular orientation of the diffuser at the location where the exhaust gas exits the last stage row of blades of the turbine section of the gas turbine engine. An end portion of the gas diffuser proximate the last stage row of blades can include one or more actuated sections that are independently controlled to change the angular orientation of the inlet geometry of the diffuser. In one embodiment, the angular orientation of the actuated sections is set at the manufacturing level for the service location of the engine. In another embodiment, the angular orientation of the actuated sections is selectively controlled based on the operating conditions of the engine. In another embodiment, the angular orientation of the actuated sections is controlled by pneumatic pressure from a compressor section of the engine.
    Type: Application
    Filed: April 21, 2015
    Publication date: October 27, 2016
    Inventors: Anil L. Salunkhe, Bogdan R. Raica, Christian K. Funk