Turbine blade tip with offset squealer

Patent · Mon Jan 01 00:00:00 EST 2001

OSTI ID:873516

Bunker, Ronald Scott ^[1]

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1. Niskayuna, NY

An industrial turbine assembly comprises a plurality of rotating blade portions in a spaced relation with a stationary shroud. The rotating blade includes a root section, an airfoil having a pressure sidewall and a suction sidewall defining an outer periphery and a tip portion having a tip cap. An offset squealer is disposed on the tip cap. The offset squealer is positioned inward from the outer periphery of the rotating blade. The offset squealer increases the flow resistance and reduces the flow of hot gas flow leakage for a given pressure differential across the blade tip portion so as to improve overall turbine efficiency.

• Research Organization: General Electric Co., Schenectady, NY (United States)
• DOE Contract Number: FC21-95MC31176
• Assignee: General Electric Company (Schenectady, NY)
• Patent Number(s): US 6179556
• OSTI ID: 873516
• Country of Publication: United States
• Language: English

Related Subjects

turbine
blade
tip
offset
squealer
industrial
assembly
comprises
plurality
rotating
portions
spaced
relation
stationary
shroud
root
section
airfoil
pressure
sidewall
suction
defining
outer
periphery
portion
cap
disposed
positioned
inward
increases
flow
resistance
reduces
hot
gas
leakage
differential
improve
overall
efficiency
rotating blade
turbine assembly
spaced relation
assembly comprises
outer periphery
tip portion
turbine blade
gas flow
pressure differential
hot gas
blade tip
turbine efficiency
wall defining
blade portions
root section
flow resistance
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