Patents Assigned to Stal-Labal Turbin AB
  • Patent number: 4445259
    Abstract: A method of manufacturing a bladed element of a rotary fluid machine, for example a turbine or compressor, includes the steps of securing a plurality of blades in a gas-tight manner in respective openings in a wall of a hollow casing with one end of each blade in the hollow interior of the casing and the remainder of the blade externally of the casing, filling the casing with powder which surrounds the blade ends within the casing, hermetically sealing the casing, and isostatically pressing the casing around the blade ends in order to form the casing, the powder and the blade ends into a monolithic body.
    Type: Grant
    Filed: August 13, 1982
    Date of Patent: May 1, 1984
    Assignee: Stal-Labal Turbin AB
    Inventor: Ragnar Ekbom
  • Patent number: 4149826
    Abstract: A gas turbine having a rotor and a stator, the stator defining a blade channel which is of generally conical configuration and being axially movable relative to the rotor. A thermal responsive means which is heated in accordance with the temperature of the gas in the turbine moves the stator and rotor axially relative to each other to vary the gap therebetween so as to maintain the clearance between the rotor blades and the stator housing within predetermined values. The gap is subject also to the rotational forces acting on the rotor blades.
    Type: Grant
    Filed: June 27, 1977
    Date of Patent: April 17, 1979
    Assignee: Stal-Labal Turbin AB
    Inventor: Nils A. R. Torstenfelt