Compressor for gas turbines

Details Compressor for gas turbines Compressor for gas turbines

2006-08-01

2006-08-01

Look, Edward K. (Department: 3745)

Fluid reaction surfaces (i.e., impellers)

Specific blade structure

Coating, specific composition or characteristic

C428S408000

Reexamination Certificate

active

07083389

ABSTRACT:
A compressor for a gas turbine has, on the surfaces of its components, in particular of its blading, a coating for protecting the surfaces from erosion. The coating has at least two layers or a plurality of pairs of layers formed from amorphous carbon or a plasma polymer, the layers having an inherently high hardness, and the outermost layer of the coating having hydrophobic properties. Furthermore, the hardness of an inner layer of a pair of layers is higher than the hardness of an outer layer. The coating is particularly suitable for the avoidance of drop impingement erosion caused by liquid drops, erosion caused by solid particles, such as ice, and contamination caused by deposition of dust particles and constituents which are dissolved in liquids. The coating prolongs the service life of the components and increases the power of the turbine.

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