Power plants – Combustion products used as motive fluid – Combined with regulation of power output feature
Patent
1981-01-14
1984-04-17
Casaregola, Louis J.
Power plants
Combustion products used as motive fluid
Combined with regulation of power output feature
F02C 928
Patent
active
044426674
ABSTRACT:
An acceleration limit reset circuit (38, 40, 42, 44) is disclosed for a closed loop fuel control (11) of a gas turbine engine (10). The closed loop control includes a comparator circuit (28) which compares an acceleration term Ngs-Nd to a limit value Al and if the scheduled acceleration (Ngs-Nd) is in excess of the limit, regulates the rate of change of the engine speed to the limited value Al. The acceleration limit Al is scheduled by an accel/decel limiter circuit (30) as substantially equivalent to the surge line of the engine. The acceleration limit reset circuit (38, 40, 42, 44) is provided for modifying the acceleration limit Al during special operating conditions of the engine (10) by a signal RRS.
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Aviation Electric Ltd.
Casaregola Louis J.
Cuoco Anthony F.
Marvin William A.
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