Tip cap for a turbine rotor blade
Patent
·
OSTI ID:1128688
A turbine rotor blade with a spar and shell construction, and a tip cap that includes a row of lugs extending from a bottom side that form dovetail grooves that engage with similar shaped lugs and grooves on a tip end of the spar to secure the tip cap to the spar against radial displacement. The lug on the trailing edge end of the tip cap is aligned perpendicular to a chordwise line of the blade in the trailing edge region in order to minimize stress due to the lugs wanting to bend under high centrifugal loads. A two piece tip cap with lugs at different angles will reduce the bending stress even more.
- Research Organization:
- Florida Turbine Technologies, Inc., Jupiter, FL (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- FG02-07ER84668
- Assignee:
- Florida Turbine Technologies, Inc. (Jupiter, FL)
- Patent Number(s):
- 8,678,764
- Application Number:
- 12/606,463
- OSTI ID:
- 1128688
- Country of Publication:
- United States
- Language:
- English
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