Multiple piece turbine airfoil

Patent · Tue Nov 09 00:00:00 EST 2010

OSTI ID:1014945

Kimmel, Keith D ^[1]

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1. Jupiter, FL

A turbine airfoil, such as a rotor blade or a stator vane, for a gas turbine engine, the airfoil formed as a shell and spar construction with a plurality of hook shaped struts each mounted within channels extending in a spanwise direction of the spar and the shell to allow for relative motion between the spar and shell in the airfoil chordwise direction while also fanning a seal between adjacent cooling channels. The struts provide the seal as well as prevent bulging of the shell from the spar due to the cooling air pressure. The hook struts have a hooked shaped end and a rounded shaped end in order to insert the struts into the spar.

• Research Organization: Florida Turbine Technologies, Inc. (Jupiter, FL)
• Sponsoring Organization: USDOE
• DOE Contract Number: FG02-07ER84668
• Assignee: Florida Turbine Technologies, Inc. (Jupiter, FL)
• Patent Number(s): 7,828,515
• Application Number: US Patent Application 12/468,349
• OSTI ID: 1014945
• Country of Publication: United States
• Language: English