Patents by Inventor Mank H. Tran

Mank H. Tran 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).

  • Control stage nozzle vane for use in partial arc operation
    Patent number: 5080558
    Abstract: For steam turbines capable of being operated in partial arc operation, the primary arc of admission is provided with nozzle vanes having a thicker trailing edge as compared to the trailing edges of the remaining nozzle vanes, so that chipping and erosion due to a large pressure load during partial load operation is avoided.
    Type: Grant
    Filed: June 7, 1990
    Date of Patent: January 14, 1992
    Assignee: Westinghouse Electric Corp.
    Inventor: Mank H. Tran
  • Blading for reaction turbine blade row
    Patent number: 5035578
    Abstract: A blade for a steam turbine has a concave, pressure-side surface which has a constant radius of curvature, while the convex, suction-side surface has a continuously increasing radius curvature. The constantly increasing radius of curvature allows fluid to accelerate and thus ensure a small boundary layer of thickness. The center of gravity of the blade tenon is located above the center of gravity of the airfoil which will reduce the steam bending stress applied at the base of the airfoil as well as at the root of the rotor blade.
    Type: Grant
    Filed: October 16, 1989
    Date of Patent: July 30, 1991
    Assignee: Westinghouse Electric Corp.
    Inventor: Mank H. Tran
  • Free standing blade for use in low pressure steam turbine
    Patent number: 5017091
    Abstract: A turbine blade is designed to avoid having to machine a part of the last blade assembled in a row in order to make a fit. The location of the root pivot center was carefully selected to be located in vertical proximity to a leading edge of the platform.
    Type: Grant
    Filed: February 26, 1990
    Date of Patent: May 21, 1991
    Assignee: Westinghouse Electric Corp.
    Inventor: Mank H. Tran