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Title: Integrated circuit cooled turbine blade

Patent ·
OSTI ID:1377874

A turbine rotor blade includes at least two integrated cooling circuits that are formed within the blade that include a leading edge circuit having a first cavity and a second cavity and a trailing edge circuit that includes at least a third cavity located aft of the second cavity. The trailing edge circuit flows aft with at least two substantially 180-degree turns at the tip end and the root end of the blade providing at least a penultimate cavity and a last cavity. The last cavity is located along a trailing edge of the blade. A tip axial cooling channel connects to the first cavity of the leading edge circuit and the penultimate cavity of the trailing edge circuit. At least one crossover hole connects the penultimate cavity to the last cavity substantially near the tip end of the blade.

Research Organization:
SIEMENS ENERGY, INC. Orlando, FL (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FC26-05NT42644
Assignee:
SIEMENS ENERGY, INC.
Patent Number(s):
9,745,853
Application Number:
14/840,572
OSTI ID:
1377874
Resource Relation:
Patent File Date: 2015 Aug 15
Country of Publication:
United States
Language:
English

References (9)

Airfoil with nested cooling channels patent June 1988
Turbine blade with dual serpentine cooling patent May 2011
Turbine blade with multi-vortex tip cooling and sealing patent October 2011
Turbine airfoil with non-parallel pin fins patent November 2011
Cooling system with internal flow guide within a turbine blade of a turbine engine patent-application July 2006
Heat Exchanger patent-application July 2010
Crossover Cooled Airfoil Trailing Edge patent-application February 2015
Gas Turbine Engines with Improved Leading Edge Airfoil Cooling patent-application April 2016
Turbine Airfoil Turbulator Arrangment patent-application November 2016

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