Power plants – Combustion products used as motive fluid – Multiple fluid-operated motors
Patent
1979-07-20
1981-08-11
Casaregola, Louis J.
Power plants
Combustion products used as motive fluid
Multiple fluid-operated motors
60 3943, F02C 310
Patent
active
042827094
ABSTRACT:
In a gas turbine power plant including at least three turbine rotors operating upon independent shafts, one rotor is designed to drive the compressor, one is designed to produce the main part of the power output and the third rotor is adapted to aid the two first mentioned rotors, variable transmission means being provided to interconnect the rotor shafts.
In order to improve part load efficiency this third rotor is provided with vanes being substantially slim and straight when compared with the conventional reaction type blades of a power turbine, whereby this third rotor may act as a power producing turbine during high loads, and as a power consuming fan during part and low loads.
REFERENCES:
patent: 3498057 (1970-03-01), Kronogard et al.
patent: 4054030 (1977-10-01), Pedersen
Norbye, J. P. The Gas Turbine Engine Radnor, Pa., Chilton Book Co., 1975, p. 85.
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