Patent ID: 6966755
Filing Date: 2005-11-22
Classification: F01D,F04D

Abstract:
1. An airfoil assembly comprising: an airfoil having a radially proximal end and an open radially distal end, a hollow pocket formed in the airfoil beginning at the distal end and extending radially inward therefrom; a tip insert at least partially recessed within the pocket, the tip insert having a radially proximal end and a radially distal end; at least one spring operatively engaging the airfoil within the pocket and the tip insert to bias the tip insert to a predetermined recessed position, the tip insert being radially outwardly movable against the bias of the spring from the predetermined recessed position up to a predetermined extended position; and an abutment surface within the pocket for engaging at least one of the tip insert and the spring so as to limit the extension of the tip insert to the predetermined extended position.