Patent ID: 7798285
Filing Date: 2010-09-21
Classification: B64D,F02C,Y02T

Abstract:
1. An acoustic inner barrel for an engine nacelle inlet, the acoustic barrel comprising: an annular inner skin; an annular outer skin; an annular acoustic cellular core disposed between the inner skin and the outer skin; and at least two reinforcement members extending radially from the inner skin, through the acoustic cellular core, and to the outer skin, wherein the inner skin, outer skin, acoustic cellular core and the at least two reinforcement members are bonded together to form a 360-degree, one-piece annular structure, wherein each reinforcement member comprises: a central segment extending radially through the acoustic cellular core; a first end segment extending from a first end of the central segment substantially parallel to the inner skin, the first end segment being positioned between layers of the inner skin; and a second end segment extending from a second end of the central segment substantially parallel to the outer skin, the second end segment being positioned between the acoustic cellular core and the outer skin.