Hybrid structure fan blade
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United States of America Patent
Stats
-
Dec 27, 2011
Grant Date -
Oct 21, 2010
app pub date -
Apr 16, 2009
filing date -
Apr 16, 2009
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A hybrid fan blade for a gas turbine engine is provided that includes an airfoil and a composite panel. The airfoil has a first side and a second side orientated opposite the first side. The first and second sides extend between a tip, a base, a leading edge and a trailing edge. The airfoil includes a plurality of cavities disposed in the first side of the airfoil, which cavities extend inwardly toward the second side. The cavities collectively form an opening. At least one rib is disposed between the cavities. A shelf is disposed around the opening. The composite panel is attached to the shelf first mounting surface and to the rib, and is sized to enclose the opening. The first composite panel is a load bearing structure operable to transfer loads to the airfoil and receive loads from the airfoil.
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Cited Art Landscape
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