Turboshaft engine

Details Turboshaft engine Turboshaft engine

1978-08-21

1980-03-11

Casaregola, Louis J.

Power plants

Combustion products used as motive fluid

Multiple fluid-operated motors

60 3916C, 415 65, F02C 310

Patent

active

041921372

ABSTRACT:
An improvement in torque characteristics is provided for a turboshaft engine of the type having a compressor rotor driven by a gas generator turbine that is mechanically independent of the power turbine. The improvement comprises a rotatable compressor stator casing which is interconnected with the power turbine rotor to allow rotation of the compressor casing in the same direction as the compressor rotor at a lower speed. At reduced output shaft speed, the relative speed between the compressor rotor blades and stator blades is increased for increased gas generator output and hence torque, for a predetermined compressor rotor speed.

REFERENCES:
patent: 3363831 (1968-01-01), Garnier
patent: 3703081 (1972-11-01), Krebs et al.

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