skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: 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
Resource Relation:
Patent File Date: 2009 Oct 27
Country of Publication:
United States
Language:
English

References (4)


Cited By (1)

Multiple piece turbine rotor blade patent July 2016

Similar Records

Multiple piece turbine rotor blade
Patent · Tue Jul 19 00:00:00 EDT 2016 · OSTI ID:1128688

Multiple piece turbine rotor blade
Patent · Tue May 21 00:00:00 EDT 2013 · OSTI ID:1128688

Multiple piece turbine blade
Patent · Tue May 29 00:00:00 EDT 2012 · OSTI ID:1128688

Related Subjects