Patents by Inventor Vasil Ozarapoglu

Vasil Ozarapoglu 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).

  • Handling bleed valve
    Patent number: 5477673
    Abstract: The present invention discloses a bleed valve for use in gas turbine engines. The valve has a piston, one end of which is positioned inside a housing which is positioned on one side of the by pass fluid flow path. The other end of the piston is positioned in an opening between the primary fluid flow path and the bypass fluid path such that the valve opens and closes in response to a pressure differential between two points in the primary fluid flow path.
    Type: Grant
    Filed: August 10, 1994
    Date of Patent: December 26, 1995
    Assignee: Pratt & Whitney Canada Inc.
    Inventors: Daniel Blais, Eric Tremaine, Vasil Ozarapoglu
  • Turbine engine with induced pre-swirl at the compressor inlet
    Patent number: 4720235
    Abstract: A jet flap construction for the compressor of an aircraft gas turbine engine provided with a bleed for bleeding air interstage of the compressor and communicating with the hollowed-out struts in the airflow path to the compressor. The hollow struts are each provided with one or more rows of discrete openings extending from the shroud to the hub on the strut to form an aligned series of jets for discharging the pressurized bleed air and forming a jet flap, thereby providing pre-swirl at the compressor inlet.
    Type: Grant
    Filed: June 3, 1986
    Date of Patent: January 19, 1988
    Assignee: Pratt & Whitney Canada Inc.
    Inventors: Roger Lachance, Vasil Ozarapoglu