Patents by Inventor Fred W. Schwark, JR.

Fred W. Schwark, JR. 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).

  • Variable area fan nozzle cowl airfoil
    Patent number: 8739515
    Abstract: A nacelle assembly for a high-bypass gas turbine engine includes a variable area fan nozzle having a first fan nacelle section and a second fan nacelle section. The second fan nacelle section being axially movable relative the first fan nacelle section to define an auxiliary port to vary a fan nozzle exit area and adjust fan bypass airflow, the second fan nacelle section includes at least one cowl with an inner portion, an outer portion and a multiple of stiffeners therebetween to increase a flutter margin.
    Type: Grant
    Filed: November 24, 2009
    Date of Patent: June 3, 2014
    Assignee: United Technologies Corporation
    Inventors: Fred W. Schwark, Jr., Oliver V. Atassi, William D. Owen
  • Variable area fan nozzle bearing track
    Patent number: 8443586
    Abstract: A variable area fan nozzle for a high-bypass gas turbine engine includes a first track slider movable relative to the hinge beam along a first interface. A second track slider is movable relative to the first track slider along a second interface that includes a bearing assembly. A VAFN cowl is mounted to the second track slider.
    Type: Grant
    Filed: November 24, 2009
    Date of Patent: May 21, 2013
    Assignee: United Technologies Corporation
    Inventors: Fred W. Schwark, Jr., Oliver V. Atassi, William D. Owen
  • VARIABLE AREA FAN NOZZLE COWL AIRFOIL
    Publication number: 20110120080
    Abstract: A nacelle assembly for a high-bypass gas turbine engine includes a variable area fan nozzle having a first fan nacelle section and a second fan nacelle section. The second fan nacelle section being axially movable relative the first fan nacelle section to define an auxiliary port to vary a fan nozzle exit area and adjust fan bypass airflow, the second fan nacelle section includes at least one cowl with an inner portion, an outer portion and a multiple of stiffeners therebetween to increase a flutter margin.
    Type: Application
    Filed: November 24, 2009
    Publication date: May 26, 2011
    Inventors: Fred W. Schwark, JR., Oliver V. Atassi, William D. Owen
  • VARIABLE AREA FAN NOZZLE STIFFENERS AND PLACEMENT
    Publication number: 20110120079
    Abstract: A nacelle assembly for a high-bypass gas turbine engine is disclosed and includes a variable area fan nozzle (VAFN) including at least one second fan nacelle section movable relative to the first fan nacelle section to modify an area of the bypass flow path. At least one stiffener is mounted between the first fan nacelle section and the second fan nacelle section. The stiffeners modify mode shapes and natural frequencies to substantially reduce or eliminate flutter within operating ranges that are produced by unsteady aerodynamic loads.
    Type: Application
    Filed: November 24, 2009
    Publication date: May 26, 2011
    Inventors: Fred W. Schwark, JR., Oliver V. Atassi, William D. Owen
  • VARIABLE AREA FAN NOZZLE BEARING TRACK
    Publication number: 20110120081
    Abstract: A variable area fan nozzle for a high-bypass gas turbine engine includes a first track slider movable relative to the hinge beam along a first interface. A second track slider is movable relative to the first track slider along a second interface that includes a bearing assembly. A VAFN cowl is mounted to the second track slider.
    Type: Application
    Filed: November 24, 2009
    Publication date: May 26, 2011
    Inventors: Fred W. Schwark, JR., Oliver V. Atassi, William D. Owen
  • VARIABLE AREA FAN NOZZLE TRACK
    Publication number: 20110120078
    Abstract: A variable area fan nozzle for a high-bypass gas turbine engine includes a first track slider movable relative to the hinge beam along a first interface. A second track slider is movable relative to the first track slider along a second interface that is more closely controlled than the first interface. A VAFN cowl is mounted to the second track slider.
    Type: Application
    Filed: November 24, 2009
    Publication date: May 26, 2011
    Inventors: Fred W. Schwark, JR., Oliver V. Atassi, William D. Owen