TURBINE BLADE HAVING SQUEALER
First Claim
Patent Images
1. A turbine blade comprising:
- an air foil including a plurality of cooling flow passages through which a cooling medium flows from a leading edge region to a trailing edge region;
a top plate which forms the apex of the air foil, has a heat-resistant coating applied on the upper surface thereof, and includes a plurality of cooling holes; and
a squealer which protrudes radially outward from the blade from the top plate, and is formed so as to extend from a leading edge end to a starting end of the trailing edge region along a suction-surface-side blade wall in a peripheral direction of the blade.
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Abstract
A turbine blade of the invention includes an air foil including a plurality of cooling flow passages through which a cooling medium flows from a leading edge region to a trailing edge region, a top plate which forms the apex of the air foil, has a heat-resistant coating applied on the upper surface thereof, and includes a plurality of cooling holes, and a squealer which protrudes radially outward from the blade from the top plate, and is formed so as to extend from a leading edge end to a starting end of the trailing edge region along a suction-surface-side blade wall in a peripheral direction of the blade.
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Citations
10 Claims
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1. A turbine blade comprising:
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an air foil including a plurality of cooling flow passages through which a cooling medium flows from a leading edge region to a trailing edge region; a top plate which forms the apex of the air foil, has a heat-resistant coating applied on the upper surface thereof, and includes a plurality of cooling holes; and a squealer which protrudes radially outward from the blade from the top plate, and is formed so as to extend from a leading edge end to a starting end of the trailing edge region along a suction-surface-side blade wall in a peripheral direction of the blade. - View Dependent Claims (3, 4, 5, 9)
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2. A turbine blade comprising:
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an air foil including a plurality of cooling flow passages through which a cooling medium flows from a leading edge region to a trailing edge region; a top plate which forms the apex of the air foil, has a heat-resistant coating applied on the upper surface thereof, and includes a plurality of cooling holes; and a squealer which protrudes radially outward of the blade from the top plate, is formed from a starting end of the trailing edge region along a suction-surface-side blade wall to a leading edge end in a peripheral direction of the blade, and is further formed so as to continuously extend from the leading edge end along a pressurized-surface-side blade wall to the starting end of the trailing edge region. - View Dependent Claims (6, 7, 8, 10)
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Specification