Patents by Inventor Darius N. Marchal

Darius N. Marchal 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 reconditioning fuel nozzle assemblies
    Patent number: 10364982
    Abstract: A method of reconditioning and fabricating turbine components is provided. In one embodiment, the method is performed on a fuel nozzle assembly of a gas turbine, and comprises providing a pre-assembled fuel nozzle assembly having a base, a body extending from the base to a fuel nozzle tip, an inner assembly, and an outer assembly. The method further comprises removing at least a portion of the fuel nozzle tip and the inner assembly, coupling and joining a replacement inner assembly to the base, and coupling and joining a replacement fuel nozzle tip to the replacement inner assembly and to the outer assembly to provide a reconditioned fuel nozzle.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: July 30, 2019
    Assignee: ANSALDO ENERGIA SWITZERLAND AG
    Inventors: Darius N. Marchal, Michael McGhee
  • WELDED FUEL NOZZLE AND METHOD OF FABRICATING A FUEL NOZZLE
    Publication number: 20170146235
    Abstract: A method of reconditioning and fabricating turbine components is provided. In one embodiment, the method is performed on a fuel nozzle assembly of a gas turbine, and comprises providing a pre-assembled fuel nozzle assembly having a base, a body extending from the base to a fuel nozzle tip, an inner assembly, and an outer assembly. The method further comprises removing at least a portion of the fuel nozzle tip and the inner assembly, coupling and joining a replacement inner assembly to the base, and coupling and joining a replacement fuel nozzle tip to the replacement inner assembly and to the outer assembly to provide a reconditioned fuel nozzle.
    Type: Application
    Filed: November 17, 2016
    Publication date: May 25, 2017
    Inventors: Darius N. Marchal, Michael McGhee