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Multiple piece turbine rotor blade

United States Patent

May 21, 2013
View the Complete Patent at the US Patent & Trademark Office
A multiple piece turbine rotor blade with a shell having an airfoil shape and secured between a spar and a platform with the spar including a tip end piece. a snap ring fits around the spar and abuts against the spar tip end piece on a top side and abuts against a shell on the bottom side so that the centrifugal loads from the shell is passed through the snap ring and into the spar and not through a tip cap dovetail slot and projection structure.
Jones; Russell B (Jupiter, FL), Fedock; John A (Port St. Lucie, FL)
Florida Turbine Technologies, Inc. (Jupiter, FL)
12/ 749,580
March 30, 2010
GOVERNMENT LICENSE RIGHTS This invention was made with Government support under contract number DE-FG02-07ER84668 awarded by Department of Energy. The Government has certain rights in the invention.