Gas turbine bucket wall thickness control

Patent · Tue Jan 01 00:00:00 EST 2002

OSTI ID:874801

Stathopoulos, Dimitrios ^[1]; Xu, Liming ^[2]; Lewis, Doyle C ^[3]

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1. Glenmont, NY
2. Greenville, SC
3. Greer, SC

A core for use in casting a turbine bucket including serpentine cooling passages is divided into two pieces including a leading edge core section and a trailing edge core section. Wall thicknesses at the leading edge and the trailing edge of the turbine bucket can be controlled independent of each other by separately positioning the leading edge core section and the trailing edge core section in the casting die. The controlled leading and trailing edge thicknesses can thus be optimized for efficient cooling, resulting in more efficient turbine operation.

• Research Organization: General Electric Co., Schenectady, NY (United States)
• DOE Contract Number: FC21-95MC31176
• Assignee: General Electric Company (Schenectady, NY)
• Patent Number(s): US 6464462
• OSTI ID: 874801
• Country of Publication: United States
• Language: English

Related Subjects

gas
turbine
bucket
wall
thickness
control
core
casting
including
serpentine
cooling
passages
divided
pieces
leading
edge
section
trailing
thicknesses
controlled
independent
separately
positioning
die
optimized
efficient
resulting
operation
gas turbine
leading edge
cooling passages
/416/29/164/