Power plants – Combustion products used as motive fluid – Multiple fluid-operated motors
Patent
1981-01-14
1984-02-21
Casaregola, Louis J.
Power plants
Combustion products used as motive fluid
Multiple fluid-operated motors
60 39281, F02C 310, F02C 928
Patent
active
044322011
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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