Gas turbine with a stator blade
First Claim
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1. A gas turbine comprising:
- a stator blade fastened on a blade carrier, the stator blade including;
a blade airfoil which extends inwards in a radial direction from an outer platform into a hot gas passage;
an access in the blade carrier into a first plenum which is arranged above the outer platform for a cooling medium to flow, via an inlet provided in the outer platform into an interior of the stator blade;
a first means for controlling cooling-medium pressure in the first plenum; and
a second means for cooling the outer platform by directing the cooling medium from the first plenum.
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Abstract
A gas turbine with a stator blade is disclosed. The stator blade is fastened on a blade carrier and includes a blade airfoil which extends inwards in the radial direction from an outer platform into a hot gas passage. A cooling medium can flow through an interior of the blade airfoil, such as cooling air, which flows through an access in the blade carrier into a first plenum which is arranged above the outer platform, and from there, via an inlet which is provided in the outer platform, flows into the interior of the blade airfoil.
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Citations
19 Claims
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1. A gas turbine comprising:
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a stator blade fastened on a blade carrier, the stator blade including; a blade airfoil which extends inwards in a radial direction from an outer platform into a hot gas passage; an access in the blade carrier into a first plenum which is arranged above the outer platform for a cooling medium to flow, via an inlet provided in the outer platform into an interior of the stator blade; a first means for controlling cooling-medium pressure in the first plenum; and a second means for cooling the outer platform by directing the cooling medium from the first plenum. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification