Patents by Inventor Joseph CIRTWILL

Joseph CIRTWILL 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).

  • Fuel injectors and method of purging fuel injectors
    Patent number: 11639687
    Abstract: A method of purging fuel injectors of a gas turbine engine, the fuel injectors fluidly connected to a fuel manifold and having primary and secondary fuel passages fluidly connectable to the fuel manifold, the method includes: selectively fluidly disconnecting one or more of the primary and secondary fuel passages from the fuel manifold; and purging the one or more of the primary and secondary fuel passages by injecting a purging fluid into the one or more of the primary and secondary fuel passages while bypassing the fuel manifold. A fuel injector having two fuel passages, a flow divider valve, and a purging valve is disclosed.
    Type: Grant
    Filed: October 22, 2020
    Date of Patent: May 2, 2023
    Assignee: PRATT & WHITNEY CANADA CORP.
    Inventors: Joseph Cirtwill, Jian-Ming Zhou, Kian McCaldon
  • FUEL INJECTORS AND METHOD OF PURGING FUEL INJECTORS
    Publication number: 20220128008
    Abstract: A method of purging fuel injectors of a gas turbine engine, the fuel injectors fluidly connected to a fuel manifold and having primary and secondary fuel passages fluidly connectable to the fuel manifold, the method includes: selectively fluidly disconnecting one or more of the primary and secondary fuel passages from the fuel manifold; and purging the one or more of the primary and secondary fuel passages by injecting a purging fluid into the one or more of the primary and secondary fuel passages while bypassing the fuel manifold. A fuel injector having two fuel passages, a flow divider valve, and a purging valve is disclosed.
    Type: Application
    Filed: October 22, 2020
    Publication date: April 28, 2022
    Inventors: Joseph CIRTWILL, Jian-Ming ZHOU, Kian MCCALDON