Power plants – Combustion products used as motive fluid
Patent
1986-12-08
1988-07-12
Casaregola, Louis J.
Power plants
Combustion products used as motive fluid
60 3929, F02C 918
Patent
active
047561521
ABSTRACT:
In a twin spool gas turbine engine the electronic engine control modulates the open area of the compressor bleed valves during engine transients as a function of a ratio of the actual rate of change of the compressor speed to a maximum scheduled rate of change such that the bleeds are opened more as the actual rate of change approaches the scheduled maximum rate. This continuous modulation provides smooth thrust transition from one steady state condition to another while maintaining a proper safety margin relative to the engine surge line.
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Sobey et al., Control of Aircraft and Missile Powerplants, Wiley and Sons, New York; 1963, pp. 32-33.
Krukoski Leon
Laudadio Nicola
Casaregola Louis J.
Revis Stephen E.
United Technologies Corporation
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