Power plants – Combustion products used as motive fluid – Combustion products generator
Patent
1988-03-25
1990-04-17
Casaregola, Louis J.
Power plants
Combustion products used as motive fluid
Combustion products generator
60752, F23R 304
Patent
active
049169068
ABSTRACT:
The present invention comprises a method and apparatus for improving cooling of a wall in a gas turbine engine. The method and apparatus provide breach cooling of an imperforate wall, such as a combustor liner, for improving the cooling thereof. The breach cooling includes structure for channeling a cooling fluid as a jet toward an outer surface of the imperforate wall, with the jet having sufficient memontum to breach a boundary layer of the cooling fluid which forms over the wall outer surface to allow the jet to contact the wall outer surface for more effective cooling thereof. In an exemplary embodiment of the invention, the breach-cooled wall is an upstream portion of the gas turbine engine combustor, and the inner surface of the combustor liner facing the combustion gases is characterized by not having a film-cooling boundary layer of air to reduce quenching of the combustion gases for reducing exhaust emissions.
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Casaregola Louis J.
Conte Francis L.
General Electric Company
Squillaro Jerome C.
Thorpe Timothy S.
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