Patent ID: 6393353
Filing Date: 2002-05-21
Classification: F01D,F02C,F05D

Abstract:
A device for controlling and testing an aircraft engine cutoff-on-stop system, comprising:a fuel feed regulator configured to output an allowable fuel flow for input to engine fuel injectors, the allowable fuel flow being determined in accordance with a control signal received from the engine; a sensor configured to determine an instantaneous real fuel flow from the fuel feed regulator to the engine fuel injectors; and a cutoff valve configured to cut off the allowable fuel flow from the fuel feed regulator from reaching the engine fuel injectors, in response to a fuel cut-off command determined by a position of a master lever; wherein a correct operational test of the cutoff-on-stop system includes detecting a difference between the allowable fuel flow and the instantaneous real fuel flow measured by the sensor.