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US 8,708,645 B1Granted
Turbine rotor blade with multi-vortex tip cooling channels
AssigneeFlorida Turbine Technologies, Inc.
InventorGeorge Liang
Life of this patent
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Abstract
A turbine rotor blade with a tip section having a pressure side and suction side tip rail that forms a squealer pocket. A number of chordwise extending ribs formed within the squealer pocket form vortex cooling channels that extend from the leading edge region and open along the pressure side tip peripheral wall. A row of tip cooling holes opens into each of the vortex cooling channels to discharge cooling air and form a vortex flow within the channels that provides both sealing and cooling for the blade tip.
Claims7
A turbine rotor blade comprising:
- an airfoil section with a pressure side wall and a suction side wall;
- a blade tip section with a pressure side tip rail and a suction side tip rail forming a squealer pocket;
- a plurality of chordwise extending ribs formed within the squealer pocket;
- the plurality of chordwise extending ribs forming a plurality of vortex cooling air channels;
- the plurality of vortex cooling air channels each having an inlet end that opens into the squealer pocket in a leading edge region of the blade tip section;
- the plurality of vortex cooling air channels each having an outlet end that opens in a slot on the pressure side tip peripheral wall;
- and, the plurality of vortex cooling air channels each has a row of tip cooling holes opening into the respective vortex cooling air channel.
4 more elements
Dependencies are inferred from the claim text.