Patent ID: 6910659
Filing Date: 2005-06-28
Classification: B64C,B64D

Abstract:
1. An airfoil, comprising: a first surface portion; a second surface portion spaced apart from the first surface portion; a core positioned between the first and second surface portions, the core being sealably connected to the first and second surface portions and positioned to carry a load from at least one of the first and second surface portions to the other, the core including an aft portion, a forward portion, and a plurality of cells separated by cell walls, at least some of the cell walls having wall openings positioned to provide liquid communication between adjacent cells, the at least some of the cell walls having a first portion proximate to the first surface portion, a second portion proximate to the second surface portion, and a third portion between the first and second portions, the first, second, and third portions having at least one wall opening; and a collection chamber in the airfoil and positioned inboard the core to collect fluid flowing in a spanwise direction through the aft and forward portions of the core.