Turbulated hole configurations for turbine blades

Details Turbulated hole configurations for turbine blades Turbulated hole configurations for turbine blades

2006-02-14

2006-02-14

Look, Edward K. (Department: 3745)

Rotary kinetic fluid motors or pumps

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

C416S09600A, C416S09700R

Reexamination Certificate

active

06997675

ABSTRACT:
A turbine blade having improved cooling has an airfoil with a root end and a tip end and at least one cooling passageway in the airfoil. Each cooling passageway extends from the root end to the tip end and has a circular cross-section. A plurality of turbulation promotion devices are arranged in each cooling passageway. Each of the turbulation promotion devices is arcuate in shape and circumscribes an arc less than 180 degrees.

REFERENCES:
patent: 5232343 (1993-08-01), Butts
patent: 5413463 (1995-05-01), Chiu et al.
patent: 6234752 (2001-05-01), Wei et al.
patent: 6416283 (2002-07-01), Johnson et al.
patent: 6672836 (2004-01-01), Merry

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