Multivariant set point using n1 and n2 for engine control

F - Mech Eng,Light,Heat,Weapons – 02 – C

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F02C 9/28 (2006.01)

Patent

CA 2470850

A turbofan engine throttle control system (10) and method for eliminating dead bands in the throttle control by decreasing and increasing the fuel flow to the engine during transition from the scheduled core speed to scheduled fan speed of the engine to effect a smooth and continuous transition from the core speed to the fan speed and vice-versa. A signal is generated to open and close a valve system to augment and decrease the fuel flow in response to sensing different throttle lever (22) angles.

L'invention concerne un système (10) de commande de puissance d'un turboréacteur à double flux (turbofan), et un procédé permettant d'éliminer les zones mortes dans le système de commande de puissance par une diminution et une augmentation du flux de carburant en direction du moteur pendant la transition entre la vitesse type de la partie centrale et la vitesse type de la soufflante du moteur afin d'assurer une transition régulière et continue de la vitesse de la partie centrale à la vitesse de la soufflante et réciproquement. Un signal est généré pour ouvrir et fermer un système de soupape, afin d'augmenter et de diminuer le flux de carburant en réponse à la détection de différents angles de la manette (22) de commande de puissance.

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