Patents by Inventor Richard Eugene Kehl

Richard Eugene Kehl 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).

  • Variable feedwater heater cycle
    Patent number: 9297278
    Abstract: A structure, system, and method for controlling a power output and flue gas temperature of a power plant by adjusting final feedwater temperature are disclosed herein. In an embodiment, a turbine having a plurality of valved steam extraction ports is provided. Each steam extraction port is fluidly connected with a feedwater heater. Each of the plurality of valves in the valved steam extraction ports may be opened and closed to the passage of steam therethrough, in order to vary a final feedwater temperature.
    Type: Grant
    Filed: May 27, 2011
    Date of Patent: March 29, 2016
    Assignee: General Electric Company
    Inventors: Nestor Hernandez Sanchez, Richard Eugene Kehl, Kamlesh Mundra, James Michael Stagnitti
  • VARIABLE FEEDWATER HEATER CYCLE
    Publication number: 20120297771
    Abstract: A structure, system, and method for controlling a power output and flue gas temperature of a power plant by adjusting final feedwater temperature are disclosed herein. In an embodiment, a turbine having a plurality of valved steam extraction ports is provided. Each steam extraction port is fluidly connected with a feedwater heater. Each of the plurality of valves in the valved steam extraction ports may be opened and closed to the passage of steam therethrough, in order to vary a final feedwater temperature.
    Type: Application
    Filed: May 27, 2011
    Publication date: November 29, 2012
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Nestor Hernandez Sanchez, Richard Eugene Kehl, Kamlesh Mundra, James Michael Stagnitti
  • Cored steam turbine bucket
    Publication number: 20040115059
    Abstract: Steam turbine buckets are formed by investment casting to be hollow or to have a lightweight lattice-work internal core. The process is also used to integrally form steam turbine buckets having a variety of dovetail configurations, including a tangential fir-tree dovetail, a tangential slot dovetail and an axial gas turbine style dovetail. The investment casting process can also be used to integrally cast a cover at one end of the steam turbine bucket.
    Type: Application
    Filed: December 12, 2002
    Publication date: June 17, 2004
    Inventors: Richard Eugene Kehl, Ronald Scott Bunker