Patents by Inventor Dennis P. Cronin

Dennis P. Cronin 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).

  • Publication number: 20250154896
    Abstract: A method of removing particles entrained within an air flow that has entered a turbine engine disposed within a nacelle is provided. The turbine engine includes fan, compressor, and turbine sections, a bypass duct, and an axial centerline. The bypass duct is disposed radially outside of a core gas path. A nacelle includes a nacelle inlet cavity that defines an air inlet path into the engine. The method includes providing a fluid injection system that injects fluid into the air inlet path from nozzles, and controlling the fluid injection system to inject the fluid into the air inlet path from the nozzles during a segment of an aircraft flight mission. Particles wetted by the injected fluid are subject to centrifugal force in and aft of the fan section and are directed radially outward for flow through the bypass duct.
    Type: Application
    Filed: November 13, 2023
    Publication date: May 15, 2025
    Inventors: Dennis P. Cronin, Anthony R. Bifulco
  • Publication number: 20220412268
    Abstract: A hybrid electric engine of an aircraft includes a compressor, a turbine operably connected to the compressor via a variable gear ratio gearbox and a combustor configured to drive the turbine via a flow of combustion products. An electric motor is operably connected to the variable gear ratio rear box and configured to input rotational energy into the gearbox. The input of rotational energy into the gearbox from the electric motor changes a rotational speed of one of the compressor or the turbine relative to the other of the compressor or the turbine.
    Type: Application
    Filed: June 28, 2021
    Publication date: December 29, 2022
    Inventors: Michael D. Greenberg, Lance L. Smith, Dennis P. Cronin, Nancy Poisson, Christopher D. Ramsey, Neil Terwilliger