Balancing of rotatable components

摘要

A balanced rotor component for a gas turbine engine having a aerofoil with a root and an rotor with an axial aerofoil root slot. The aerofoil root has a cavity which holds a balance weight. The cavity is open along at least one wall and the balance weight is spaced from the slot wall to minimise stress concentrations.

主权项

1. A balanced rotor component for a gas turbine engine, the balanced component rotatable about an axis in use and having at least one axial slot having a profile holding a complementary profile of a root portion of a blade member, wherein the slot holds a balance weight which is in contact with a base of the slot at rest, the balance weight being further located within a cavity in the root portion; wherein lateral sides of the cavity are open; and wherein a side of the balance weight has two portions arranged in axial series joined at an obtuse angle, one of the portions contacting a side wall of the slot and the other portion being spaced from the side wall of the slot.