Patent ID: 7316539
Filing Date: 2008-01-08
Classification: F01D,F05D

Abstract:
1. An airfoil assembly comprising: a forward airfoil segment defining the leading edge of the airfoil assembly; an aft airfoil segment defining the trailing edge of the airfoil assembly, the aft airfoil segment being made of metal, wherein the airfoil segments are positioned substantially proximate to each other so as to form a gap therebetween; and an insert disposed in the gap and secured to one of the airfoil segments, whereby the insert substantially seals the gap and provides compliance between the forward and aft airfoil segments, wherein the forward airfoil segment includes a coolant plenum, wherein at least one passage connects between the plenum and the gap, wherein the insert includes at least one hollow protrusion having an expanded head, wherein the insert is positioned in the passage such that the expanded head protrudes into the plenum, whereby the insert is secured to the forward airfoil segment.