Patent ID: 6652237
Filing Date: 2003-11-25
Classification: F01D,F05D

Abstract:
A dovetail joint between a rotor wheel and a bucket rotatable about an axis, comprising:a male dovetail component on the rotor wheel and a female dovetail component on the bucket, said male dovetail component receiving said female dovetail component in a direction tangential to the rotor wheel, said male dovetail component including a plurality of circumferentially extending hooks lying on opposite sides of a plane normal to the axis and bisecting said male dovetail component, each said hook having a generally radially inwardly-facing surface; said surfaces of all of pairs of said hooks on each of the opposite sides of the plane defining angles extending away from said plane and toward and away from said axis, the angles of said surfaces of all of pairs of said hooks on each of the opposite sides of the plane being equal to one another.