Rotating stall recovery

Details Rotating stall recovery Rotating stall recovery

1993-04-26

1994-12-27

Casaregola, Louis J.

Power plants

Combustion products used as motive fluid

Combined with regulation of power output feature

415 27, F02C 916

Patent

active

053754123

ABSTRACT:
In an aircraft gas turbine engine, stator vane deflection and compressor bleed are controlled to alter the compressor airflow vs. compressor pressure relationship map when stall conditions are detected based on compressor speed and compressor temperature, a change that means that less change in pressure required to nudge the compressor from of a stall, accelerating stall recovery. Once the stall has ceased, the stator deflection and bleed are restored to pre-recovery values.

REFERENCES:
patent: 2741423 (1956-04-01), Lombard
patent: 4060979 (1977-12-01), Elsaesser et al.
patent: 4060980 (1977-12-01), Elsaesser et al.
patent: 4117668 (1978-10-01), Elsaesser et al.
patent: 5042245 (1991-08-01), Zickwolf
patent: 5117625 (1992-06-01), McArthur et al.

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