Method of manufacture of cooled turbine or compressor buckets
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United States of America Patent
Stats
-
Jan 29, 1980
Grant Date -
N/A
app pub date -
Mar 22, 1978
filing date -
Mar 22, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Methods are disclosed for more practical construction of liquid-cooled buckets able to efficiently transport heat energy from the inside of the airfoil skin surface in contact with hot gas to the outer surface of preformed tubes recessed into the bucket core, through which tubes liquid coolant is passed during operation. The bucket is made of a series of preformed solid components, which are assembled, consolidated and then converted into a unified structure. In each arrangement illustrated one of the preformed solid components is a flat bimetallic sheet comprising an erosion, corrosion resistant layer and a layer of high thermal conductivity, these layers being joined by an optimized metallurgical bond.
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