Patents by Inventor Robert Paul Ziegler

Robert Paul Ziegler 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).

  • Compound clearance control engine
    Patent number: 7823389
    Abstract: A gas turbine engine includes a compressor, combustor, and turbine having a row of blades mounted inside a surrounding turbine shroud. A heat exchanger is used for cooling pressurized air bled from the compressor. A distribution network joins the heat exchanger to the turbine for selectively channeling air from the heat exchanger below the blades and above the shroud for controlling blade tip clearance.
    Type: Grant
    Filed: November 15, 2006
    Date of Patent: November 2, 2010
    Assignee: General Electric Company
    Inventors: Kenneth Edward Seitzer, Wojciech Sak, Zhifeng Dong, Robert Paul Ziegler, Chris Charles Glynn
  • Transpiration clearance control turbine
    Patent number: 7740443
    Abstract: A row of turbine blades is surrounded by a turbine shroud. The shroud is supported by a turbine case having a pair of radially outwardly extending rails. The rails are perforate for channeling therethrough control air to control thermal radial movement of the case, and in turn radial position of the shroud supported therefrom.
    Type: Grant
    Filed: November 15, 2006
    Date of Patent: June 22, 2010
    Assignee: General Electric Company
    Inventors: Kenneth Edward Seitzer, Wojciech Sak, Zhifeng Dong, Robert Paul Ziegler, William Lee Herron
  • Axial flow sleeve for a turbine combustor and methods of introducing flow sleeve air
    Patent number: 7707835
    Abstract: A combustor has a flow sleeve and a flow liner defining a generally axial flow direction of compressor discharge air toward combustor burners. A casing is secured to the forward end of the flow sleeve defining an annular plenum along the interior of the flow sleeve. Openings through the flow sleeve supply compressor discharge air into the plenum where the air changes direction for flow through apertures into and generally coaxially with the free air stream. The axial injection minimizes or eliminates energy losses due to cross flow injection within the axial air stream while continuing to cool the liner.
    Type: Grant
    Filed: June 15, 2005
    Date of Patent: May 4, 2010
    Assignee: General Electric Company
    Inventors: John Joseph Lipinski, Thomas Edward Johnson, Robert Paul Ziegler, Mark Stewart Schroder
  • Transpiration clearance control turbine
    Publication number: 20080112797
    Abstract: A row of turbine blades is surrounded by a turbine shroud. The shroud is supported by a turbine case having a pair of radially outwardly extending rails. The rails are perforate for channeling therethrough control air to control thermal radial movement of the case, and in turn radial position of the shroud supported therefrom.
    Type: Application
    Filed: November 15, 2006
    Publication date: May 15, 2008
    Inventors: Kenneth Edward Seitzer, Wojciech Sak, Zhifeng Dong, Robert Paul Ziegler, William Lee Herron
  • Compound clearance control engine
    Publication number: 20080112798
    Abstract: A gas turbine engine includes a compressor, combustor, and turbine having a row of blades mounted inside a surrounding turbine shroud. A heat exchanger is used for cooling pressurized air bled from the compressor. A distribution network joins the heat exchanger to the turbine for selectively channeling air from the heat exchanger below the blades and above the shroud for controlling blade tip clearance.
    Type: Application
    Filed: November 15, 2006
    Publication date: May 15, 2008
    Inventors: Kenneth Edward Seitzer, Wojciech Sak, Zhifeng Dong, Robert Paul Ziegler, Chris Charles Glynn