Blade fixing design for protecting against low speed...

Details Blade fixing design for protecting against low speed... Blade fixing design for protecting against low speed...

F - Mech Eng,Light,Heat,Weapons

01

D

F01D 5/30 (2006.01) F01D 5/16 (2006.01)

Patent

CA 2740105

The blade dovetails and associated dovetail slots of a gas turbine engine rotor assembly are shaped so that during windmilling the high stress regions of the blade dovetails are shielded from rubbing against the disk and vice versa. Bumper surfaces are provided in low stress regions of the dovetail assembly such that the windmilling contact points between the blade dovetails and the disk are in non-critical areas of the dovetail assembly.

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