Power plants – Combustion products used as motive fluid – Combustion products generator
Patent
1996-04-10
1997-11-04
Thorpe, Timothy
Power plants
Combustion products used as motive fluid
Combustion products generator
747752, F02C 100
Patent
active
056827474
ABSTRACT:
A heat shield for a gas turbine engine combustor of the type composed of multiple annular stages. The heat shield is particularly adapted for use in a middle stage disposed between radially inward and outward stages of a multistage combustor, and configured to form centerbodies that isolate the middle stage from the other stages of the combustor. The heat shield is composed of an annular array of single crystal superalloy segments. To achieve acceptable levels of durability for the superalloy segments, their primary and secondary crystal orientations are controlled to achieve a balance between the ability to withstand thermally-induced stresses and those stresses induced by high levels of acoustic energy, particularly those high levels attained as a result of a combustor operating with lean fuel/air ratios.
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Brown Daniel D.
Brueggert Marlin S.
Murach Ronald T.
Raabe Kevin W.
Sabato Joseph G.
General Electric Company
Hess Andrew C.
Kim Ted
Thorpe Timothy
Traynham Wayne O.
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