F - Mech Eng,Light,Heat,Weapons – 01 – D
Patent
F - Mech Eng,Light,Heat,Weapons
01
D
F01D 5/30 (2006.01) F01D 5/28 (2006.01)
Patent
CA 2056519
13DV-9982 TURBINE BLADE WEAR PROTECTION SYSTEM WITH MULTILAYER SHIM ABSTRACT OF THE DISCLOSURE A metallic reinforced shim is attached to the dovetail of turbine or compressor blades. The shim reduces frictionally induced wear damage to the rotor. In one form, a single ply shim reinforced with a metallic doubler has an anti-fretting layer deposited on the shim face contacting the dovetail slot pressure face, and a doubler layer fastened to the anti-fretting layer is the non-contacting regions to prevent slippage of the shim on the blade. In another form, a multi-layer shim has two layers interposed between the blade dovetail and the disk dovetail slot, with the layers treated so that they do not readily slip relative to the titanium pieces, but do slip relative to each other. The shim is also reinforced with a metallic doubler. Fretting is confined to the consumable shim, and therefore the disk dovetail slot and the mating blade dovetails are not subject to surface degradation with corresponding reduction in fatigue capability.
Herzner Frederick C.
Juenger Jerome A.
Wayte Peter
Company General Electric
Craig Wilson And Company
Herzner Frederick C.
Juenger Jerome A.
Wayte Peter
LandOfFree
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