Dual coolant turbine blade

Details Dual coolant turbine blade Dual coolant turbine blade

2005-11-01

2005-11-01

Look, Edward K. (Department: 3745)

Rotary kinetic fluid motors or pumps

With passage in blade, vane, shaft or rotary distributor...

C416S09700R

Reexamination Certificate

active

06960060

ABSTRACT:
A turbine blade includes a hollow airfoil joined to a dovetail and platform. The airfoil includes leading and trailing edge cooling circuits disposed between the opposite pressure and suction sidewalls of the airfoil along the leading and trailing edges thereof. The leading edge cooling circuit includes a radial inlet commencing in the base of the dovetail, and the trailing edge cooling circuit includes an axial inlet commencing in the aft face of the dovetail for receiving coolant having different pressure and temperature.

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CFM International, “CFM56-3 Engine Airflow,” Engine in public use and on sale in U.S. more than one year before Oct. 1, 2003, one page color drawing.
U.S. Appl. No. (pending), “Triple Circuir Turbine Cooling,” by Erich A. Krammer et al, filed concurrently herewith (Nov. 20, 2003,).
U.S. Appl. No. 10/718,149, “Triple Circuit Turbine Cooling,” by Erich A. Krammer et al, filed concurrently herewith on Nov. 20, 2003 (Docket GE132280).

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