| 摘要 |
Acceleration limit reset arrangement or a fuel control device of a gas turbine engine, said device (11) including a porportional speed loop (346) slaved to a datum (N) formed by integrating in an integral lo (26, 28, 32) an acceleration term (Nd-Ngs); a comparator (2) in the integral loop (26, 28, 32) compares the acceleration to (Nd-Ngs) to a limit value (As) and, if the acceleration te (Nd-Ngs) is in excess of the limit (As), regulates the rate of change of the engine speed the limit value (As); the limit value (A is scheduled by an acceleration/deceleration limiter circuit () as substantially equivalent to the surge line of the engine (10) the acceleration limit @ arrangement (54, 56) is responsive the scheduled limit value (As) of the acceleration limit and to the high spool speed (Nh) allow spool speed (NI) of the engine (1 for modifying as a function of the relationship of the high and law spool speeds (Nh, NI) the scheduled limit value (As) during transient conditions and for generating an acceleration limit (A) or the fuel control device (11) as a modified scheduled ve. |
