Fluid flow machine blade

Details Fluid flow machine blade Fluid flow machine blade

2006-11-03

2009-02-17

Nguyen, Ninh H (Department: 3745)

Fluid reaction surfaces (i.e., impellers)

Specific blade structure

Coating, specific composition or characteristic

C416S24100B, C416S09700R, C416S19300A, C029S889721

Reexamination Certificate

active

07491033

ABSTRACT:
A fluid flow machine blade (1) is provided on the outer contour of the airfoil (4) with a thermal barrier coating (41). In this context, quite purposefully, only part-regions of the airfoil have the thermal barrier coating, while well-defined second part-regions of the airfoil (42, 43, 44) are realized purposefully without thermal barrier coating. In particular, along the trailing edge (46) of the airfoil, a region (42) is realized without thermal barrier coating. In further embodiments of the invention, regions of the airfoil (43, 44) which lie adjacent to foot-side (21) or tip (31) platforms of the blades are realized without thermal barrier coating.

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