Patents by Inventor David James Wiebe

David James Wiebe 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).

  • Patent number: 7272930
    Abstract: A turbine engine exhaust diffuser assembly having a tuneable exhaust velocity profile is disclosed. The assembly includes structure that generates a desired, tunable velocity profile within working fluid exiting the exhaust diffuser assembly. The exhaust assembly includes an concentric boundary sleeves that extend along a central axis and form an exhaust flowpath between them. A flow deflecting member disposed within the flowpath longitudinally divides the flowpath into a first region and a second region. The first region is characterized by a first predetermined velocity profile, and the second region is characterized by a second predetermined velocity profile. The second velocity profile is determined by at least one pre-selected dimension of the flow deflecting member. Methods of maximizing HRSG energy extraction capacity and extending HRSG lifespan are also disclosed.
    Type: Grant
    Filed: September 25, 2003
    Date of Patent: September 25, 2007
    Assignee: Siemens Power Generation
    Inventors: David James Wiebe, Eric Christopher Berrong
  • Patent number: 6786046
    Abstract: A flame-holding nozzle for a combustion turbine engine is disclosed. The nozzle includes several elongated sleeves in a substantially concentric arrangement. The sleeves cooperatively provide distinct passageways for fluids to move through the nozzle. The nozzle includes conduits that advantageously direct fluids to designated regions of the nozzle, allowing fuel and cooling fluid to move within the nozzle without becoming commingled. Portions of the nozzle sleeves are also strategically arranged to transmit fluids in a manner that provides substantially-uniform thermal expansion, thereby reducing the need for sliding joints or bellows arrangements.
    Type: Grant
    Filed: September 11, 2002
    Date of Patent: September 7, 2004
    Assignee: Siemens Westinghouse Power Corporation
    Inventors: David James Wiebe, David D. North, William Richard Ryan
  • Publication number: 20040045296
    Abstract: A flame-holding nozzle for a combustion turbine engine is disclosed. The nozzle includes several elongated sleeves in a substantially concentric arrangement. The sleeves cooperatively provide distinct passageways for fluids to move through the nozzle. The nozzle includes conduits that advantageously direct fluids to designated regions of the nozzle, allowing fuel and cooling fluid to move within the nozzle without becoming commingled. Portions of the nozzle sleeves are also strategically arranged to transmit fluids in a manner that provides substantially-uniform thermal expansion, thereby reducing the need for sliding joints or bellows arrangements.
    Type: Application
    Filed: September 11, 2002
    Publication date: March 11, 2004
    Applicant: Siemens Westinghouse Power Corporation
    Inventors: David James Wiebe, David D. North, William Richard Ryan
  • Publication number: 20040045295
    Abstract: A flame-holding nozzle for a combustion turbine engine is disclosed. The nozzle includes several elongated sleeves in a substantially-concentric arrangement. The sleeves cooperatively provide distinct passageways for fluids to move through the nozzle. The nozzle includes conduits that advantageously direct fluids to designated regions of the nozzle, allowing fuel and cooling fluid to move within the nozzle without becoming commingled. Portions of the nozzle sleeves are also strategically arranged to transmit fluids in a manner that provides substantially-uniform thermal expansion, thereby eliminating the need for sliding joints or bellows arrangements.
    Type: Application
    Filed: September 11, 2002
    Publication date: March 11, 2004
    Applicant: Siemens Westinghouse Power Corporation
    Inventors: David James Wiebe, Michael Herbert Koenig, Robert Bland
  • Patent number: 6698207
    Abstract: A flame-holding nozzle for a combustion turbine engine is disclosed. The nozzle includes several elongated sleeves in a substantially-concentric arrangement. The sleeves cooperatively provide distinct passageways for fluids to move through the nozzle. The nozzle includes conduits that advantageously direct fluids to designated regions of the nozzle, allowing fuel and cooling fluid to move within the nozzle without becoming commingled. Portions of the nozzle sleeves are also strategically arranged to transmit fluids in a manner that provides substantially-uniform thermal expansion, thereby eliminating the need for sliding joints or bellows arrangements.
    Type: Grant
    Filed: September 11, 2002
    Date of Patent: March 2, 2004
    Assignee: Siemens Westinghouse Power Corporation
    Inventors: David James Wiebe, Michael Herbert Koenig, Robert Bland