Turbine airfoil with micro-tubes embedded with a TBC

Details Turbine airfoil with micro-tubes embedded with a TBC Turbine airfoil with micro-tubes embedded with a TBC

2006-09-27

2010-02-09

Look, Edward (Department: 3745)

Rotary kinetic fluid motors or pumps

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

C029S888000, C029S889720, C029S458000, C416S22900R

Reexamination Certificate

active

07658590

ABSTRACT:
A turbine airfoil with a thermal barrier coating applied to the surface for protection from a hot gas flow, where the TBC includes a plurality of micro-tubes extending from a cooling hole in the airfoil substrate and passing through the TBC to provide both reinforcement to and cooling of the TBC. The micro-tubes extend out from a separate hole and open onto the surface of the TBC, or a plurality of micro-tubes extends from a common hole and spread out from the hole. The micro-tubes are formed from nickel or another high temperature resistant material and have a diameter of about 0.009 inches.

REFERENCES:
patent: 4080095 (1978-03-01), Stahl
patent: 5951254 (1999-09-01), Sikorski et al.
patent: 6113722 (2000-09-01), Hoffman et al.
patent: 6368060 (2002-04-01), Fehrenbach et al.
patent: 6551061 (2003-04-01), Darolia et al.
patent: 6617003 (2003-09-01), Lee et al.
patent: 6720087 (2004-04-01), Fried et al.
patent: 6749396 (2004-06-01), Barry et al.
patent: 6761956 (2004-07-01), Lee et al.
patent: 6905302 (2005-06-01), Lee et al.

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