Combustion system including a transition piece and method of forming using a cast superalloy
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United States of America Patent
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Aug 18, 2015
Grant Date -
Oct 24, 2013
app pub date -
Apr 24, 2012
filing date -
Apr 24, 2012
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Abstract
A combustion system including a transition piece and method of forming the transition piece using a cast nickel-based superalloy is provided. The transition piece includes a body defining a flowpath and enclosure, the body having a circular inlet section for receiving combustion product from the combustor and an outlet end for flowing the combustor products into a first stage nozzle of a gas turbine. The transition piece comprises a one-piece single casting construction of the circular inlet section, the body, and the outlet end. The transition piece is formed from a nickel-based superalloy. The transition piece has a thick-to-thin ratio of wall thickness of thick transition to wall thickness of thin transition of about 1.1 to about 2.5.
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