Power plants – Combustion products used as motive fluid – Multiple fluid-operated motors
Patent
1988-06-20
1989-03-07
Stout, Donald E.
Power plants
Combustion products used as motive fluid
Multiple fluid-operated motors
416171, 416129, 416DIG2, F02C 3067
Patent
active
048094986
ABSTRACT:
An improved gas turbine engine is disclosed. The engine includes counterrotating first and second turbine rotors without an intervening nozzle. Disclosed also are means for obtaining pitch relative outlet velocity greater than pitch absolute inlet velocity for at least one of the rotors. In one embodiment, the reaction of at least one of the rotors is greater than a reference reaction effecting peak efficiency of the one turbine. Advantages include improved overall engine efficiency and decrease in weight, reduced cooling flow and complexity of the engine.
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Giffin, III Rollin G.
Lenahan Dean T.
Conte Francis L.
General Electric Company
Lawrence Derek P.
Stout Donald E.
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