Emergency control system for gas turbine engine variable compres

Details Emergency control system for gas turbine engine variable compres Emergency control system for gas turbine engine variable compres

1974-07-24

1976-02-10

Husar, C. J.

Rotary kinetic fluid motors or pumps

With control means responsive to non-cyclic condition...

Plural diverse condition responsive

415 32, 415 48, 60223, 60 3929, F01B 2500

Patent

active

039375889

ABSTRACT:
A gas turbine engine has variable vanes in the rear compressor that are automatically scheduled to their optimum position for proper engine operation by a closed loop primary engine control system in response to selected engine operating conditions. A failure in the engine control system may cause the variable vanes to be locked in a position which degrades the engine aerodynamics to a dangerous level. An emergency controller is connected to schedule the position of the variable compressor vanes in an open loop manner in response to changes in the power lever when a failure of the primary engine control system occurs.

REFERENCES:
patent: 2950857 (1960-08-01), Williams et al.
patent: 3367565 (1968-02-01), Urban
patent: 3814537 (1974-06-01), Stoltman

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