F - Mech Eng,Light,Heat,Weapons – 02 – C
Patent
F - Mech Eng,Light,Heat,Weapons
02
C
340/102, 341/95
F02C 7/26 (2006.01) F02C 9/32 (2006.01)
Patent
CA 1070407
Abstract of the Disclosure For a gas turbine engine provided with a fuel feed control system that includes an engine speed sensor and provides a fuel feed rate control signal based on the deviation of the sensed engine speed from an intended speed, the invention provides a system for detecting the presence of an abnormality possibly leading to an overrun of the engine shortly after starting of the engine. This system comprises a timer circuit which produces a signal such as logic "1" signal after the lapse of a preset period of time from starting of the engine, a comparison circuit which produces a signal such as logic "1" signal if the amplitude of the actual engine speed signal is below a normally expected level after the lapse of the preset period of time, and a logical operation circuit which provides a warning signal only when, for example, the outputs of the timer and com- parison circuits are both "1" signals. - 1 -
267289
Hosaka Akio
Tsuruta Eiji
LandOfFree
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