A gas turbine engine includes a very high speed low pressure turbine such that a quantity defined by the exit area of the low pressure turbine multiplied by the square of the low pressure turbine rotational speed compared to the same parameters for the high pressure turbine is at a ratio between about 0.5 and about 1.5.
GAS TURBINE ENGINE WITH HIGH SPEED LOW PRESSURE TURBINE SECTION
GASTURBINENMOTOR MIT EINEM HOCHGESCHWINDIGKEITS-NIEDERDRUCK-TURBINENABSCHNITT
TURBINE À GAZ DOTÉE D'UNE SECTION TURBINE À BASSE PRESSION À VITESSE ÉLEVÉE
2015-09-16
Patent
Electronic Resource
English
High Pressure Intercooled Turbine Engine Concept
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