23-06-2016 дата публикации
Номер: US20160177732A1
Принадлежит:
A blade includes a hollow metal airfoil having an opening to an internal cavity in a first major surface. A metal cover is adhesively bonded to the airfoil around the opening. The cover encloses the cavity and provides a continuous first major surface. The cavity is divided into at least first and second subcavities. A different filler material is disposed within the first and second subcavities. 1. A blade comprising:a root; and first and second major surfaces;', 'an internal cavity comprising at least one rib dividing the internal cavity into at least first and second subcavities;', 'a first filler material disposed within the first subcavity; and', 'a second filler material disposed within the second subcavity, wherein the first filler material is different than the second filler material., 'an airfoil connected to the root and formed from a first metallic material, the airfoil comprising2. The blade of claim 1 , further comprising:an opening in the first major surface; anda cover covering the opening.3. The blade of claim 2 , further comprising a socket around the opening claim 2 , wherein the cover is received in the socket.4. The blade of claim 3 , further comprising an adhesive bond between the cover and the socket5. The blade of claim 1 , wherein the first filler material and the second filler material each comprise a material selected from the group consisting of: a plastic claim 1 , a composite claim 1 , a non-metallic foam claim 1 , a solid metal claim 1 , a metallic foam claim 1 , and a gas.6. The blade of claim 1 , wherein the second filler material comprises a material selected from the group consisting of: a plastic claim 1 , a composite claim 1 , a non-metallic foam claim 1 , a solid metal claim 1 , a metallic foam claim 1 , and a gas.7. The blade of claim 5 , wherein the metallic foam is selected from the group consisting of:6XXX-series aluminum alloy, and 7XXX-series aluminum alloy.8. The blade of claim 2 , further comprising an adhesive bond ...
Подробнее