Patents by Inventor Doug M. Schwerin

Doug M. Schwerin 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).

  • Clutch coupled to gas turbine engine and method for cooling
    Patent number: 10443663
    Abstract: A gas turbine engine clutch includes a dry clutch assembly, forward and aft working areas, and a shaft. The dry clutch assembly is operative to receive power from a gas turbine engine. The dry clutch assembly is configured to selectively engage the gas turbine engine with a driven source, and has an axial opening extending therethrough. The forward and aft working areas are disposed at axially opposite ends of the dry clutch assembly. The shaft extends axially through the axial opening of the dry clutch assembly, and defines an axial fluid flow passage therethrough in liquid fluid communication with the forward and aft working areas.
    Type: Grant
    Filed: September 20, 2016
    Date of Patent: October 15, 2019
    Assignee: Rolls-Royce Corporation
    Inventors: Matthew T. Bouton, Doug M. Schwerin
  • System and method for eliminating adverse clutch vibratory responses
    Patent number: 10082184
    Abstract: Systems and methods to control an amount of axial clearance within a clutch transmission system are disclosed. A propulsion system includes a clutch transmission system having clutch vibratory response clearance control logic configured to iteratively control the amount of axial clearance within the clutch transmission system so as to achieve a desired, e.g., consistent and/or limited, clutch vibratory response.
    Type: Grant
    Filed: March 1, 2016
    Date of Patent: September 25, 2018
    Assignee: Rolls-Royce Corporation
    Inventors: Matthew T. Bouton, Doug M. Schwerin, Stanford O. Clemens
  • CLUTCH COUPLED TO GAS TURBINE ENGINE AND METHOD FOR COOLING
    Publication number: 20170227067
    Abstract: A gas turbine engine clutch includes a dry clutch assembly, forward and aft working areas, and a shaft. The dry clutch assembly is operative to receive power from a gas turbine engine. The dry clutch assembly is configured to selectively engage the gas turbine engine with a driven source, and has an axial opening extending therethrough. The forward and aft working areas are disposed at axially opposite ends of the dry clutch assembly. The shaft extends axially through the axial opening of the dry clutch assembly, and defines an axial fluid flow passage therethrough in liquid fluid communication with the forward and aft working areas.
    Type: Application
    Filed: September 20, 2016
    Publication date: August 10, 2017
    Inventors: Matthew T. Bouton, Doug M. Schwerin
  • Clutch coupled to gas turbine engine and method for cooling
    Patent number: 9534640
    Abstract: A gas turbine engine clutch includes a dry clutch assembly, forward and aft working areas, and a shaft. The dry clutch assembly is operative to receive power from a gas turbine engine. The dry clutch assembly is configured to selectively engage the gas turbine engine with a driven source, and has an axial opening extending therethrough. The forward and aft working areas are disposed at axially opposite ends of the dry clutch assembly. The shaft extends axially through the axial opening of the dry clutch assembly, and defines an axial fluid flow passage therethrough in liquid fluid communication with the forward and aft working areas.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: January 3, 2017
    Assignee: Rolls-Royce Corporation
    Inventors: Matthew T. Bouton, Doug M. Schwerin
  • SYSTEM AND METHOD FOR ELIMINATING ADVERSE CLUTCH VIBRATORY RESPONSES
    Publication number: 20160258497
    Abstract: Systems and methods to control an amount of axial clearance within a clutch transmission system are disclosed. A propulsion system includes a clutch transmission system having clutch vibratory response clearance control logic configured to iteratively control the amount of axial clearance within the clutch transmission system so as to achieve a desired, e.g., consistent and/or limited, clutch vibratory response.
    Type: Application
    Filed: March 1, 2016
    Publication date: September 8, 2016
    Inventors: Matthew T. Bouton, Doug M. Schwerin, Stanford O. Clemens
  • CLUTCH COUPLED TO GAS TURBINE ENGINE AND METHOD FOR COOLING
    Publication number: 20150041274
    Abstract: A gas turbine engine clutch includes a dry clutch assembly, forward and aft working areas, and a shaft. The dry clutch assembly is operative to receive power from a gas turbine engine. The dry clutch assembly is configured to selectively engage the gas turbine engine with a driven source, and has an axial opening extending therethrough. The forward and aft working areas are disposed at axially opposite ends of the dry clutch assembly. The shaft extends axially through the axial opening of the dry clutch assembly, and defines an axial fluid flow passage therethrough in liquid fluid communication with the forward and aft working areas.
    Type: Application
    Filed: December 27, 2013
    Publication date: February 12, 2015
    Inventors: Matthew T. Bouton, Doug M. Schwerin