Wear resistant variable stator vane assemblies

Details Wear resistant variable stator vane assemblies Wear resistant variable stator vane assemblies

2007-05-22

2007-05-22

Nguyen, Ninh H. (Department: 3745)

Rotary kinetic fluid motors or pumps

Selectively adjustable vane or working fluid control means

Upstream of runner

C415S200000

Reexamination Certificate

active

11015936

ABSTRACT:
A variable gas turbine compressor vane assembly comprising a case structure comprising a cavity. A compressor vane is at least partially disposed inside the cavity in the case structure. The portion of the compressor vane is rotatably supported inside the cavity. A wear coating is disposed on at least a portion of a surface of the compressor vane. An antifriction coating is disposed on the wear coating. A bushing is disposed between the antifriction coating and the case structure. The bushing is in sliding contact with each of the antifriction coating and the case structure. The antifriction coating maintains a coefficient of friction between the antifriction coating and the bushing of equal to or less than about 0.95 in atmospheres substantially devoid of water vapor.

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