Control for bleed modulation during engine deceleration

Power plants – Combustion products used as motive fluid

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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.

REFERENCES:
patent: 2809492 (1957-10-01), Arkawy
patent: 3420056 (1969-01-01), Eames
patent: 3688504 (1972-09-01), Hutchinson
patent: 4058975 (1977-11-01), Gilbert et al.
patent: 4060979 (1977-12-01), Elsaesser et al.
patent: 4102595 (1978-07-01), Wibbelsman
patent: 4117668 (1978-10-01), Elsaesser et al.
patent: 4122667 (1978-10-01), Hosaka et al.
patent: 4212161 (1980-07-01), Newirth et al.
patent: 4430855 (1984-02-01), Deneux et al.
patent: 4543782 (1985-10-01), Fitzmaurice
patent: 4581888 (1986-04-01), Schmitzer et al.
Sobey et al., Control of Aircraft and Missile Powerplants, Wiley and Sons, New York; 1963, pp. 32-33.

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