Air cooled turbine blade

Details Air cooled turbine blade Air cooled turbine blade

2011-08-02

2011-08-02

Kershteyn, Igor (Department: 3745)

Fluid reaction surfaces (i.e., impellers)

With fluid passage in working member communicating with...

Air and watercraft propellers

C416S09600A, C416S09700R, C415S115000

Reexamination Certificate

active

07988417

ABSTRACT:
A turbine blade with a 5-pass serpentine flow cooling circuit for mid-blade cooling that is formed from a 3-pass forward flowing serpentine circuit followed by a 2-pass aft flowing serpentine circuit with the first leg or supply channel for the circuit located between the second leg and the fourth leg. A crossover channel connects the third leg to the fourth leg and passes underneath the blade tip to provide convective cooling and also discharges cooling air through tip cooling holes.

REFERENCES:
patent: 5975850 (1999-11-01), Abuaf et al.
patent: 6164914 (2000-12-01), Correia et al.
patent: 6491496 (2002-12-01), Starkweather
patent: 6672836 (2004-01-01), Merry
patent: 6988872 (2006-01-01), Soechting et al.
patent: 7137780 (2006-11-01), Liang

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