Method and apparatus for providing fuel to an aircraft engine

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

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F02D 41/14 (2006.01)

Patent

CA 2724258

An aircraft engine includes an aircraft engine controller configured to detect an actual peak exhaust gas temperature of a cylinder assembly. The aircraft engine controller detects an intersection between a first function representing a relationship between a set of rich exhaust gas temperature signals and a corresponding set of rich fuel-air ratio values and a second function representing a relationship between a set of lean exhaust gas temperature signals and a set of lean fuel-air ratio values. Based upon the intersection between the first and second functions, the engine controller detects an actual peak fuel-air ratio value for the cylinder assembly and can determine if a correction in the fuel-air ratio of a fuel-air mixture provided to the cylinder assembly is required.

La présente invention concerne un moteur daéronef qui comprend un dispositif de commande de moteur daéronef conçu pour détecter une température de gaz déchappement crête réelle dun groupe cylindres. Ledit dispositif détecte une intersection entre une première fonction, représentant une relation entre un ensemble de signaux de température de gaz déchappement riche et un ensemble correspondant de valeurs du rapport carburant-air riche, et une seconde fonction, représentant une relation entre un ensemble de signaux de température de gaz déchappement appauvri et un ensemble de valeurs du rapport carburant-air appauvri. Sur la base de lintersection entre les première et seconde fonctions, le dispositif de commande du moteur détecte une valeur du rapport carburant-air crête réelle pour le groupe cylindres et peut déterminer si une correction du rapport carburant-air dun mélange carburant-air introduit dans le groupe cylindres est requise.

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