Patents Assigned to Brown Boveri-Sulzer Turbomachinery, Ltd.
  • Gas turbine guide vane
    Patent number: 4021139
    Abstract: The cooled vane includes an insert from which cooling air is dispersed over the inner wall of the vane to flow from the leading edge to the trailing edge via air channels between the jacket and insert and thence from the trailing edge via air channels to the leading edge and through outlets to flow over the suction side of the vane surface.
    Type: Grant
    Filed: October 30, 1975
    Date of Patent: May 3, 1977
    Assignee: Brown Boveri Sulzer Turbomachinery, Ltd.
    Inventor: Clifford John Franklin
  • Cooled rotor blade for a gas turbine
    Patent number: 4019831
    Abstract: The hollow interior of the blade is lined with a hollow insert and ribs to define a plurality of flow passages of narrow cross-section which connect a cooling-air chamber in the blade root with a cooling-air chamber in the blade tip. The chamber in the blade tip communicates with the interior of the insert and orifices are formed in the insert to exhaust air via a perforated partition through the trailing edge of the blade. The hollow insert is anchored in the blade root in various manners.
    Type: Grant
    Filed: August 28, 1975
    Date of Patent: April 26, 1977
    Assignee: Brown Boveri Sulzer Turbomachinery Ltd.
    Inventors: Clifford John Franklin, Hans Melliger
  • Method and apparatus for cooling turbomachines
    Patent number: 4003200
    Abstract: An auxiliary blower is connected to the gaseous supply line to the axial compressor to deliver a gaseous medium, such as air, under pressure to the compressor when the rotor has been shut-off and slowed to a reduced speed. The delivered gaseous medium allows the rotor to continue rotating at the reduced speed while cooling of the rotor and vanes takes place in a uniform manner. The drive power for the blower amounts to 0.05% to 0.1% of the useful power in full-load operation of the compressor.
    Type: Grant
    Filed: July 14, 1925
    Date of Patent: January 18, 1977
    Assignee: Brown Boveri-Sulzer Turbomachinery, Ltd.
    Inventor: Ferdinand Zerlauth
  • Cooled rotor blade for a gas turbine
    Patent number: 3989412
    Abstract: The body of the blade is formed by a shell which is cast with the root to define an internal cavity and a chamber in the blade tip. A plurality of ducts extend from a chamber in the root through the shell and along the periphery of the shell to the chamber in the blade tip. Passages within the shell communicate the internal cavity with outlets in the trailing edge. These passages are sized to dam up the cooling air in the cavity.
    Type: Grant
    Filed: June 17, 1975
    Date of Patent: November 2, 1976
    Assignee: Brown Boveri-Sulzer Turbomachinery, Ltd.
    Inventor: Dilip Mukherjee