Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Daniel J. Whitesell0
Michael A. Weisse0
William D. Owen0
Date of Patent
February 7, 2006
0Patent Application Number
107653470
Date Filed
January 26, 2004
0Patent Citations Received
Patent Primary Examiner
Patent abstract
Hollow fan blades for turbo fan gas turbine engines are formed of two separate detail halves. Each detail half has a plurality of cavities and ribs machined out to reduce weight. These detail halves are subsequently bonded and given an airfoil shape in the forming operation. In the present invention, the ribs are oriented biased to provide stiffness as needed in different sections of the fan blade with smooth transitions between regions. The result is a blade with good protection from a wide spectrum of external threats.
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