Steam-cooled gas turbine bucker for reduced tip leakage loss

Details Steam-cooled gas turbine bucker for reduced tip leakage loss Steam-cooled gas turbine bucker for reduced tip leakage loss

2011-04-12

2011-04-12

Wiehe, Nathaniel (Department: 3745)

Fluid reaction surfaces (i.e., impellers)

Specific blade structure

Tined or irregular periphery

C415S173100

Reexamination Certificate

active

07922455

ABSTRACT:
A bucket for a steam turbine includes an airfoil portion having a radially outer tip, the radially outer tip having a thermal barrier coating applied thereto, and wherein the thermal barrier coating is resurfaced to form at least one ridge along the radially outer tip.

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European Search Report for Application No. 06 25 4794 dated Sep. 23, 2008.
Applicants rely on the content on the Search Report for indicating the relevance of EP 0661415 and DE 19824583A1 (non-English language references).

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