Turbine vane for a stationary gas turbine
AssigneeSiemens Aktiengesellscaft
InventorsFathi Ahmad, Michael Dankert, Günther Walz
Life of this patent
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Abstract
A turbine vane for a stationary gas turbine is provided. The turbine vane includes a hollow vane blade, wherein a rib is provided inside the vane blade to allow a pressure side wall and a suction side wall to support one another. The rib has an opening penetrating the rib near a wall at a height of an external fillet between a side wall, and a platform surface for extending a life of the turbine vane. By the opening, material accumulations in a transition region are avoided or the accumulation is reduced, whereby increases in stiffness and higher temperature gradients associated therewith are avoided.
Claims13
-8. (canceled)
A turbine blade for a stationary gas turbine, comprising:
- a fastening section;
- a platform section connected to the fastening section, the platform section comprising a platform with a platform surface, a blade being arranged on the platform surface, the blade being profiled in a cross section and including a pressure-side wall and a suction-side wall;
- an outer rounding, wherein surfaces of the pressure-side wall and of the suction-side wall, which are exposable to a hot gas, merge into the platform surface via the outer rounding;
- a cavity arranged in the blade and extending into the platform section;
- a rib which connects the pressure-side wall to the suction-side wall, the rib being arranged in the cavity, and the rib sub-dividing the cavity along a longitudinal direction of the blade;
- an opening penetrating the rib at the level of the outer rounding, wherein the opening is arranged off-center.
A turbine blade for a stationary gas turbine, comprising:
- a platform section connected to the fastening section, the platform section comprising a platform with a platform surface, a blade being arranged on the platform surface, the blade being profiled in a cross section and including a pressure-side wall and a suction-side wall;
- an outer rounding, wherein surfaces of the pressure-side wall and of the suction-side wall, which are exposable to a hot gas, merge into the platform surface via the outer rounding;
- a cavity arranged in the blade and extending into the platform section;
- a rib which connects the pressure-side wall to the suction-side wall, the rib being arranged in the cavity, and the rib sub-dividing the cavity along a longitudinal direction of the blade,
- wherein, at a level of the outer rounding, a platform-side rib end extends by a longer (or shorter) distance on an inner side of the pressure-side wall than on an inner side of the suction-side wall.
Dependencies are inferred from the claim text.